JPH08284321A - Reinforcement positioning spacer - Google Patents

Abstract

PURPOSE: To provide a reinforcement positioning spacer capable of ensuring specific thickness of cover concrete for reinforcements, using it as a leveler for leveling out the surface of concrete and opening a screw hole in the surface of concrete. CONSTITUTION: A reinforcement positioning spacer is constituted of a bearing body 1 formed of two or more bar-shaped bearing members 2a, 2b and 2c and a reinforcement holding body 12 provided to the bearing body 1 formed by connecting the bearing members 2a, 2b and 2c to hold reinforcements. In the bearing body 1, among the bearing members 2a, 2b and 2c forming the bearing body 1, one end of at least one bearing member of the bearing members positioned at both end sides of the bearing body 1 is used as the non-connection side end, and a temporary frame fixed section 3 fixed to a temporary frame 18 is provided to the non-connection side end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar positioning spacer used for assembling reinforcing bars in the construction of concrete structures.

[0002]

2. Description of the Related Art In the construction of concrete structures, when assembling reinforcing bars, spacers are used to secure the distance between the reinforcing bars and the concrete placing surface, that is, the cover thickness. The spacer used conventionally is generally a block made of concrete or plastic, and this block is interposed between the reinforcing bar and the temporary frame to secure the cover thickness.

[0003]

According to the above-mentioned conventional spacer, since the means for fixing the spacer to the temporary frame is not taken when the spacer is interposed between the reinforcing bar and the temporary frame, the impact of concrete placement When another impact is applied, the spacer interposed between the reinforcing bar and the temporary frame may be displaced or come off, and there is a problem that a predetermined cover thickness may not be secured.

In view of the above points, the present invention can be used as a leveler for leveling a concrete placing surface so that a predetermined covering thickness of a reinforcing bar can be secured, and a screw hole is provided on a concrete surface. It is intended to provide a spacer for positioning a reinforcing bar for the purpose of enabling opening.

[0005]

In order to achieve the above object, the present invention connects the support member with a support body composed of two or more rod-shaped support members whose ends can be connected and separated from each other. Of the support members constituting the support member, the support member is provided on the support member to be formed and receives the reinforcing bar. One end of at least one of the supporting members is a non-connecting side end, and the non-connecting side end is provided with a temporary frame fixing portion that is fixed to the temporary frame.

Further, among the supporting members constituting the supporting body, screw holes are formed in the axial direction at one or both ends of the supporting members located at both ends of the supporting body in the non-connection side.

[0007]

According to the present invention, the support is fixed to the temporary frame by fixing the temporary frame fixing portion of the support member located on the end side of the support members constituting the support to the temporary frame. , By receiving the reinforcing bar to the reinforcing bar receiver provided on this support, the support does not come off from the temporary frame even if it receives an impact from concrete placement or other impacts, thereby ensuring the cover thickness for the reinforcing bar. To be done.

Further, the height (length) of the support is set to the thickness of the concrete pouring, so that the tip of the support can level the concrete pouring surface.

Furthermore, since the screw hole is formed in the axial direction at the non-connection side end of the support member located on the end side of the support, the screw hole is opened in the concrete surface, and by utilizing this screw hole Various articles can be easily attached to the concrete surface.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention. In FIG. 1, reference numeral 1 is a support, and this support 1 has three rod-shaped support members 2 whose ends can be connected and separated.
It is composed of a, 2b and 2c. Support member 2a,
Of the members 2b and 2c, the support members 2a and 2c, which form the opposite ends of the support body 1, have one end that is a non-connection-side end that is not connected to another support member 2b. Is provided with a temporary frame fixing portion 3 for fixing the end portion to the temporary frame. The temporary frame fixing portion 3 is not particularly limited as long as the ends of the support members 2a and 2c can be fixed to the temporary frame. In this embodiment, a flange portion 4 in which nail holes 5 are formed is provided at the ends of the support members 2a and 2c, and the flange portion 4 serves as the temporary frame fixing portion 3. Further, screw holes 6 are formed in the axial direction at the non-connection side ends of the support members 2a and 2c. A screw hole 6 can be used as the temporary frame fixing portion 3.

Of the supporting members 2a and 2c, a male screw 7 is provided on the axial center of the connecting side end of one supporting member 2a. A female screw 8 to which the male screw 7 can be screwed is formed on the axial center at the connection side end of the other support member 2c. In addition, in the support member 2b forming the middle of the support body 1, a female screw 9 which can be screwed into the male screw 7 provided on the support member 2a is formed on one end of the support member 2b, and the other end is formed at the other end. Is a female screw 8 formed on the supporting member 2c.
A male screw 10 that can be screwed in is provided on the axis. The support members 2a, 2b, 2c have the same diameter, and the outer circumferences thereof have the male screw portions 11a, 11b,
11c is formed.

Reference numeral 12 is a reinforcing bar receiver provided on the support 1 formed by connecting the support members 2a, 2b and 2c. The reinforcing bar receiver 12 is provided on the inner peripheral surface with the support members 2a,
It is composed of a ring body 14 in which a female screw portion 13 that can be screwed into the male screw portions 11a, 11b, 11c of 2b and 2c is formed, and a receiving portion 15 protruding from the ring body 14. Reference numeral 16 denotes male screw portions 11a, 11b, 11 of the support members 2a, 2b, 2c.
Reinforcing bar receiver 1 screwed to c and similarly screwed to male screw portions 11a, 11b, 11c of support members 2a, 2b, 2c.
It is a detent that prevents the rotation of 2. In this example,
Although the temporary frame fixing portions 3 are provided at the non-connection-side end portions of both the supporting members 2a and 2c, they may be provided at only one of them.

FIG. 2 shows another embodiment of the present invention. In this embodiment, two rods 17 are provided at appropriate positions on the outer sides of the supporting members 2a, 2b, 2c so as to project the reinforcing bars. Receiver 12
And In this embodiment, each support member 2a, 2b,
The position of the reinforcing bar receiver 12 provided in 2c is set according to the cover thickness, and a plurality of supporting members 2a, 2b, 2c having different positions of the reinforcing bar receiver 12 are prepared, and the position is determined according to the cover thickness. The support members 2a, 2b, 2c are used.

Next, an example of use of the above embodiment will be described. FIG. 3 shows an example in which the spacer shown in the embodiment of FIG. 1 is used for the reinforcement of walls, beams, columns and the like. First, the supporting members 2a, 2b, 2c having a length corresponding to the wall thickness, the beam thickness, and the column thickness are selected, and the required number of reinforcing bar receivers 12 are screwed in advance on the outer circumference of each supporting member 2a, 2b, 2c. Then, each support member 2a, 2b,
2c are connected to form the support 1.

Next, the support 1 is positioned between the temporary frames 17 and 18 in which the reinforcement has been completed, and the temporary frame fixing portion 3 of the supporting member 2a is applied to one temporary frame 17 and fixed by the nail 19. Similarly, the temporary frame fixing portion 3 of the support member 2c is applied to the other temporary frame 18 and fixed by the nail 19, and the reinforcing bar 20 arranged by the reinforcing bar receiver 12 screwed to the supporting body 1 is Receive at the thick cover position. As a result, the reinforcing bar 20 is supported at the cover thickness position, and the support body 1 is fixed to the temporary frames 17 and 18 even if an impact such as the placing of concrete is received. Therefore, the cover thickness of the reinforcing bar 20 is secured. To be done. Such use also functions as a separator, and can be used as a spacer and at the same time as a separator.

FIG. 4 shows an example in which the spacer shown in the embodiment of FIG. 2 is used for slab reinforcement. First, the reinforcing bar receiver 1 is provided at a length corresponding to the slab thickness and at a position corresponding to the cover thickness.
Select the support members 2a, 2b, 2c provided with 2,
These are connected to form the support 1.

Next, the support 1 is positioned on the temporary frame 17 having completed the bar arrangement, the temporary frame fixing portion 3 of the support member 2a is applied to the temporary frame 17 and fixed by the nails 19, and the reinforcing bar receiver 12
The reinforcing bar 20 reinforced by is received at the position of the cover thickness.

As a result, the reinforcing bar 20 is supported at the position of the cover thickness, and the supporting body 1 is fixed to the temporary frame 17 even if an impact such as the placing of concrete is received.
The cover thickness is secured. Further, since the length of the support 1 is the length corresponding to the slab thickness, the tip of the support 1, that is, the non-connection side end of the support member 2c becomes the level of the concrete pouring surface, and the concrete pouring surface. Will also be the leveler of.

In the examples of use shown in FIGS. 3 and 4, when fixing the support 1 to the temporary frames 17 and 18, the nails 19 are fixed through the nail holes 5 formed in the flange 4.
As shown in FIG. 5, screw holes 6 formed in the non-connection side end portions of the support members 2a and 2c may be used, and the fixing bolts 21 may be screwed into the screw holes 6 to be fixed. .

As described above, on the concrete surface formed by using the spacer according to the present invention, the non-connecting side end portions of the supporting members 2a and 2c constituting both end sides of the supporting body 1 are formed. Since the screw hole 6 opens, this screw hole 6
Various articles are attached to the concrete surface by using appropriate bolts.

[0021]

As described above, according to the reinforcing bar positioning spacer according to the present invention, the cover thickness of the reinforcing bar can be reliably maintained, and it can be used as a leveling for concrete placing surface. Has an effect that various articles can be easily attached to the concrete surface.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention.

FIG. 2 is a front view showing another example of the present invention.

FIG. 3 is an explanatory diagram showing an example of use of the present invention.

FIG. 4 is an explanatory diagram showing an example of use of the present invention.

FIG. 5 is an explanatory diagram showing a usage example of the present invention.

[Explanation of symbols]

 1 Supports 2a, 2b, 2c Supporting member 3 Temporary frame fixing part 4 Flange 5 Nail hole 6 Screw hole 7 Male screw 8 Female screw 9 Female screw 10 Male screw 11a, 11b, 11c Male screw part 12 Reinforcing bar receiver 13 Female screw part 14 Ring body 15 receiving Part 16 Detent 17 Temporary frame 18 Temporary frame 19 Nail 20 Reinforcing bar 21 Fixing bolt

Claims (4)

[Claims] 1. A support body comprising two or more rod-shaped support members whose end portions can be connected and separated from each other, and a reinforcing bar receiver provided on the support body formed by connecting the support members to receive a reinforcing bar. In the support, one end of at least one support member among the support members constituting the support is one of the support members located on both end sides of the support is a non-connection side end portion, A reinforcing bar positioning spacer characterized in that a provisional frame fixing portion for fixing the provisional frame is provided at the end portion on the non-connection side. 2. The reinforcing bar positioning spacer according to claim 1, wherein the reinforcing bar receiver is provided at a predetermined position on the outer periphery of the supporting member. 3. The reinforcing bar positioning spacer according to claim 1, wherein the reinforcing bar receiver is detachably provided at an arbitrary position in the longitudinal direction of the supporting body formed by connecting the supporting members. 4. A threaded hole is formed in the axial direction at the non-connection side end of one or both of the supporting members located at both ends of the supporting member among the supporting members constituting the supporting member. The reinforcing bar positioning spacer according to claim 1, 2, or 3.