JP2019007164A - Reinforcement spacer device - Google Patents

Abstract

To provide a reinforcement spacer device capable of preventing it from falling off a reinforcement.SOLUTION: A reinforcement spacer device comprises a spacer 2 and a falling restriction member. The spacer comprises: an outer periphery formation 4, which has a reinforcement insertion port formed by removing a part of a ring body; a fixing part forming body, which is installed inside the outer periphery formation so as to form a reinforcement fixing part whose center is the same as that of the outer periphery formation and has a reinforcement fixing part inlet 52 to the reinforcement fixing part 51; and a guide part, which connects the reinforcement insertion port and the reinforcement fixing part inlet and guides a reinforcement from the reinforcement insertion port to the reinforcement fixing part. The falling restriction member is connected to the spacer so as to restrict falling of the spacer from a reinforcement A after the reinforcement fixing part 51 of the spacer is fixed on the reinforcement A.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a reinforcing bar spacer device for holding a space between a reinforcing bar and a formwork, which is attached to a reinforcing bar and has a concrete cover thickness.

  Conventionally, a reinforcing bar insertion slot formed by removing a part of a torus is used as a reinforcing bar spacer to maintain the space between the reinforcing bar and the formwork, which is attached to the reinforcing bar and has a concrete cover thickness. The outer peripheral structure provided, and the mounting part provided inside the outer peripheral structure and forming a reinforcing bar mounting part whose center line coincides with the center line of the outer peripheral structure and having a reinforcing bar mounting part entrance to the reinforcing bar mounting part There is known a configuration including a formed body and a guide portion that connects a reinforcing bar insertion port and a reinforcing bar mounting portion inlet to guide the reinforcing bar from the reinforcing bar insertion port to the reinforcing bar mounting portion (for example, Patent Documents 1 and 2). Etc.).

Japanese Patent No. 2001-132166 Japanese Patent No. 2003-268926

However, the above-described conventional reinforcing bar spacer is opened when the external force is applied to the reinforcing bar or external force is applied to the reinforcing bar spacer after the reinforcing bar spacer is attached to the reinforcing bar. There is a problem that the reinforcing bar spacer may come off from the reinforcing bar.
The present invention provides a reinforcing bar spacer device that can prevent dropping from a reinforcing bar.

The reinforcing bar spacer device according to the present invention is a reinforcing bar spacer device for forming a cover thickness of concrete from a concrete surface that is mounted on a reinforcing bar and is placed around the reinforcing bar to the reinforcing bar. The spacer includes a spacer and a drop-off restricting member, and the spacer includes an outer peripheral structure including a reinforcing bar insertion port formed by removing a part of the ring, and an outer peripheral structure provided inside the outer peripheral structure. The rebar attachment part is formed by connecting the rebar insertion opening and the rebar attachment part entrance to the rebar attachment part, and the rebar insertion part and the rebar attachment part entrance. And a guide part that guides from the reinforcing bar mounting part to the rebar mounting part, and the drop-off restricting member is connected to the spacer in a state of restricting the drop-off of the spacer from the rebar after the reinforcing bar mounting part of the spacer is mounted on the reinforcing bar. Toss Because, even if some external force is applied to rebar and rebar spacer device, rebar spacer device is not to fall off the rebar. That is, it is possible to provide a reinforcing bar spacer device that can prevent the reinforcing bars from dropping off.
Further, the drop-off restricting member includes another spacer having the same configuration as the spacer, and each reinforcing bar mounting portion of each spacer is mounted on the reinforcing bar, and then the reinforcing bar mounting portion inlet of the reinforcing bar mounting portion of the spacer and the reinforcing bar of another spacer. By connecting the spacer lined up along the center line of the reinforcing bar and another spacer in a state where the reinforcing bar mounting part entrance of the mounting part is located at a position shifted from each other in the circumferential direction on the outer periphery of the reinforcing bar, And a connecting member that regulates the drop-off of each spacer, so that when each spacer is mounted on a reinforcing bar, the thickness in the direction along the axial direction of the center line of the reinforcing bar doubles, and the reinforcing bar Since the weight balance in the direction along the center line of the concrete is improved, it becomes difficult to incline due to the pressure of the concrete, and the desired cover thickness dimension of the concrete can be maintained more accurately.
The connecting member is provided in a concave-convex fitting member formed by a concave portion provided in a spacer arranged along the center line of the reinforcing bar and a convex portion provided in another spacer, or a spacer arranged along the central line of the reinforcing bar. Since it is comprised by the uneven | corrugated fitting member by the convex part and the recessed part provided in another spacer, it comes to be able to prevent drop | off from a reinforcing bar by simple operation by uneven | corrugated fitting.

1 is a front view of a reinforcing bar spacer device according to Embodiment 1. FIG. The side view of the reinforcing bar spacer apparatus which concerns on Embodiment 1. FIG. Operation | movement explanatory drawing of the reinforcing bar spacer apparatus which concerns on Embodiment 1. FIG. Operation | movement explanatory drawing of the reinforcing bar spacer apparatus which concerns on Embodiment 1. FIG. Operation | movement explanatory drawing of the reinforcing bar spacer apparatus which concerns on Embodiment 2. FIG. FIG. 6 is an exploded perspective view of a reinforcing bar spacer device according to a fourth embodiment. The perspective view and front view which show the spacer of the reinforcing bar spacer apparatus which concerns on Embodiment 5. FIG. The perspective view and front view which show the spacer of the reinforcing bar spacer apparatus which concerns on Embodiment 6. FIG.

Embodiment 1
As shown in FIGS. 1 to 4, the reinforcing bar spacer device 1 of Embodiment 1 is detachably mounted on a reinforcing bar A that has been laid out, and is placed from the surface of concrete outside the figure that is placed around the reinforcing bar A. It is an apparatus for forming a concrete cover thickness up to the reinforcing bar A, and includes a spacer 2 and a drop-off restricting member 3.

  The spacer 2 is formed of, for example, synthetic resin (plastic), metal, or the like, and as shown in FIG. 1; and FIG. 3A, the outer peripheral structure 4, the mounting part forming body 5, And a guide unit 7.

The outer peripheral structure 4 is formed by an annular body having a reinforcing bar insertion port 41 formed by removing a part of the annular body.
That is, the reinforcing bar insertion port 41 is a reinforcing bar insertion port to the guide portion 7, and is formed by an opening between one end 42 and the other end 43 of the circular arc of the annular body that forms the outer peripheral structure 4. That is, one end 42 of the circular arc of the annular body forming the outer circumferential structure 4 forms one end of the reinforcing bar insertion port 41, and the other end 43 of the circular arc of the annular body forming the outer circumferential structure 4 is the reinforcing bar insertion port 41. Forming the other end.

  The mounting portion forming body 5 includes a reinforcing bar mounting portion 51 which is provided inside the outer peripheral structure body 4 and whose center line 5C coincides with the arc center line of the outer peripheral structure body 4 (that is, the center line 2C of the spacers 2 and 2). It is the structure provided with the reinforcing bar mounting part entrance 52 to the said reinforcing bar mounting part 51 while forming.

The connecting part 6 is composed of a plurality of connecting bodies 61, 61... That connect the mounting part forming body 5 and the outer peripheral structure 4.
The plurality of connecting bodies 61, 61... Function as reinforcing members provided at predetermined intervals along the circumferential direction of the spacer 2, and the connecting bodies 61 and 61 that are adjacent to each other in the circumferential direction of the spacer 2. A space is formed in the opening 62 filled with concrete.

The guide portion 7 includes one guide piece 71 and the other guide piece 72.
One guide piece 71 extends, for example, in a straight line from one end 42 of the circular arc of the annular body forming the outer circumferential structure 4 toward the center of the arc of the outer circumferential structure 4, and is an outer circumference serving as one end of the reinforcing bar insertion port 41. One end 42 of the reinforcing bar insertion opening 41 of the component 4 is connected to one end 53 of the reinforcing bar attachment portion entrance 52 of the attachment portion forming body 5.
The other guide piece 72 extends, for example, in a straight line from the other end 43 of the circular arc of the annular body forming the outer circumferential structure 4 toward the center of the arc of the outer circumferential structure 4, The other end 43 of the reinforcing bar insertion port 41 of the outer circumferential structure 4 is connected to the other end 54 of the reinforcing bar mounting portion inlet 52 of the mounting portion forming body 5.
That is, the guide portion 7 includes one guide piece 71 that connects one end 42 of the reinforcing bar insertion port 41 and one end 53 of the reinforcing bar attachment portion 52, the other end 43 of the reinforcing bar insertion port 41, and the other end of the reinforcing bar attachment portion 52. It is formed by the other guide piece 72 that connects the end 54, connects the reinforcing bar insertion port 41 of the outer circumferential structure 4 and the reinforcing bar mounting part inlet 52 of the mounting part forming body 5, and connects the reinforcing bar A to the outer circumferential structure 4. The rebar insertion port 41 guides the rebar mounting part 51 through the rebar mounting part inlet 52.

The opening width dimension of the reinforcing bar insertion opening 41 formed by the opening between the one end 42 and the other end 43 of the reinforcing bar insertion opening 41 is formed to be larger than the diameter dimension of the reinforcing bar A to which the reinforcing bar spacer device 1 is attached. Is done.
Further, the opening width dimension of the reinforcing bar mounting part inlet 52 formed by the opening between the one end 53 and the other end 54 of the reinforcing bar mounting part inlet 52 is larger than the diameter dimension of the reinforcing bar A to be mounted by the reinforcing bar spacer device 1. Formed in small dimensions.

As shown in FIG. 1 and FIG. 3A, for example, the mounting portion forming body 5 is connected to an arc portion 55 connected to one end of a plurality of connecting bodies 61, 61, and one end 53 of a reinforcing bar mounting portion inlet 52. The arc portion 56 is provided, and the arc portion 57 is provided at the other end 54 of the reinforcing bar mounting portion entrance 52.
The inner circular arc of the circular arc portion 55 is formed to be substantially the same as the half of the circumference of a circle having the same diameter as the diameter of the reinforcing bar A to which the reinforcing bar spacer device 1 is attached, and the inner circular arcs of the circular arc portions 56 and 57 are the reinforcing bar spacers. It is formed to be the same as a part of the circumference of a circle having the same diameter as the diameter of the reinforcing bar A to which the device 1 is attached.
The arcs 55, 56, 57 are arranged independently of each other on the same circumference as the diameter of the reinforcing bar A centered on the center of the arc of the outer peripheral structure 4. A reinforcing bar mounting portion 51 to which the reinforcing bar A is mounted is formed inside the portions 55, 56, and 57.

  Accordingly, the reinforcing bar A inserted into the guide part 7 via the reinforcing bar insertion port 41 into the guide part 7 of the spacer 2 approaches the center side of the arc of the outer peripheral structure 4, and the one guide piece 71 and the other guide piece 72. , And the rebar mounting part inlet 52 side of the one guide piece 71 and the other guide piece 72 moves away from each other by the elasticity of the guide pieces 71, 72, so that the width of the rebar mounting part inlet 52 is expanded, and the reinforcing bar mounting The opening width dimension of the part entrance 52 becomes large, the reinforcing bar A is mounted on the reinforcing bar mounting part 51, and the reinforcing bar spacer device 1 is mounted on the reinforcing bar A. That is, when the reinforcing bar passes between the guide pieces 71 and 72, the guide pieces 71 and 72 are pressed to bend the guide pieces 71 and 72. As a result, the opening width dimension of the reinforcing bar mounting part entrance 52 changes so as to be larger than the diameter dimension of the reinforcing bar A, and the reinforcing bar A is mounted to the reinforcing bar mounting part 51 via the reinforcing bar mounting part inlet 52. .

  However, with the spacer 2 alone, as described above, when an external force is applied to the reinforcing bar A or an external force is applied to the spacer 2, the reinforcing bar mounting part entrance 52 of the mounting part forming body 5 opens, and the reinforcing bar mounting of the spacer 2 is performed. There is a possibility that the part 51 is detached from the reinforcing bar A and the spacer 2 is dropped from the reinforcing bar A.

Therefore, in the first embodiment, the reinforcing bar spacer device 1 including the drop-off restricting member 3 that restricts the dropping of the spacer 2 from the reinforcing bar A is configured.
The drop-off restricting member 3 includes another spacer 2 having the same configuration as the spacer 2 described above, and the reinforcing bar mounting portions 51 and 51 of the spacers 2 and 2 are mounted on the reinforcing bar A, and then the reinforcing bar mounting portion of the spacer 2. The center of the reinforcing bar A in a state where the reinforcing bar mounting part inlet 52 of the reinforcing bar 51 and the reinforcing bar mounting part inlet 52 of the reinforcing bar mounting part 51 of another spacer 2 are located on the outer periphery of the reinforcing bar A are shifted from each other in the circumferential direction. By connecting the spacers 2 arranged along the line AC and another spacer 2, the connecting members 30 </ b> A and 30 </ b> B are provided to restrict the spacers 2 and 2 from dropping off from the reinforcing bar A.

  As shown in FIGS. 1 and 4A, the connecting member 30 </ b> A is composed of a convex portion 31 provided on the spacer 2 arranged along the center line AC of the reinforcing bar A and a concave portion 32 provided on another spacer 2. The connecting member 30 </ b> B is configured by an uneven fitting member including a concave portion 32 provided in the spacer 2 arranged along the center line AC of the reinforcing bar A and a convex portion 31 provided in another spacer 2. Composed.

In addition, the convex part 31 and the recessed part 32 are the mutually opposing surfaces of each outer periphery structural body 4 and 4 in the spacers 2 and 2 arrange | positioned so that it may be attached to the reinforcing bar A and aligned along the centerline AC of the reinforcing bar A. For example, the outer circumferential structure 4 is alternately provided at predetermined intervals corresponding to the length of an arc having a central angle of 90 °.
For example, the convex portion 31 is provided so as to extend from the outer peripheral structure body 4, the center line is formed by a fitting rod body parallel to the center line 5 C of the reinforcing bar mounting section 51, and the concave portion 32 is provided in the outer peripheral structure body 4. The center line is formed by a fitting hole parallel to the center line 5C of the reinforcing bar mounting portion 51, and the fitting bar is fitted into the fitting hole, so that the spacer 2 and another spacer arranged along the center line AC of the reinforcing bar A are separated. 2 are connected.

A method of attaching the reinforcing bar spacer device 1 of the first embodiment configured as described above to the reinforcing bar A will be described with reference to FIGS. 3 and 4.
First, as shown in FIG. 3 (a), the reinforcing bar mounting portion entrances 52, 52 of the reinforcing bar mounting portions 51, 51 of the spacers 2, 2 are opposed to the reinforcing bar A, as shown in FIG. 3 (b). The reinforcing bar mounting portions 51 and 51 of the spacers 2 and 2 are mounted on the reinforcing bar A.
Thereafter, as shown in FIG. 4A, one of the spacers 2 and 2, for example, another spacer 2 is rotated 90 ° about the center line 5C of the reinforcing bar mounting portion 51 as the rotation center, A state in which the reinforcing bar mounting part inlet 52 of the reinforcing bar mounting part 51 and the reinforcing bar mounting part inlet 52 of the reinforcing bar mounting part 51 of another spacer 2 are positioned at positions shifted by 90 ° in the circumferential direction on the outer periphery of the reinforcing bar A. To do. Then, as shown in FIG. 4B, the spacer 2 arranged along the center line AC of the reinforcing bar A and another spacer 2 are connected by the concave and convex fitting by the connecting members 30A and 30B, and one spacer 2 The reinforcing bar mounting part inlet 52 and the reinforcing bar mounting part inlet 52 of the other spacer are maintained at positions shifted by 90 ° in the circumferential direction of the reinforcing bar A.

In this way, the reinforcing bar mounting part inlet 52 of one spacer 2 and the reinforcing bar mounting part inlet 52 of the other spacer 2 are maintained at positions shifted from each other in the circumferential direction of the reinforcing bar A, so that these reinforcing bar mounting parts 51 , 51 does not pass through the reinforcing bar mounting part inlet 52 of one spacer 2 and the reinforcing bar mounting part inlet 52 of the other spacer 2 simultaneously from the reinforcing bar mounting part 51 side. Even if some external force is applied to the spacer device 1, the reinforcing bar spacer device 1 does not fall off the reinforcing bar A.
In other words, the reinforcing bar A mounted on the reinforcing bar mounting portions 51 and 51 of each spacer 2 and 2 is connected to the reinforcing bar mounting portion inlet 52 of one spacer 2 or the reinforcing bar mounting portion inlet of the other spacer 2 from the reinforcing bar mounting portions 51 and 51 side. The inner arc portion 55 of the reinforcing bar mounting portion 51 of the other spacer 2 is positioned beside the reinforcing bar mounting portion entrance 52 of one spacer 2 (side in the direction along the center line AC of the reinforcing bar A). At the same time, the inner circular arc portion 55 of the reinforcing bar mounting portion 51 of one spacer 2 is positioned beside the reinforcing bar mounting portion entrance 52 of the other spacer 2 (side in the direction along the center line AC of the reinforcing bar A). The reinforcing bars A mounted on the reinforcing bar mounting parts 51 and 51 are held by the reinforcing bar mounting parts 51 and 51 by the inner arc portions 55 and 55 of the reinforcing bar mounting parts 51 and 51 of the spacers 2 and 2.

  In addition, the reinforcing bar spacer device 1 according to the first embodiment is simply detached from the reinforcing bar A by manually releasing the connection of the spacers 2 and 2 after being attached to the reinforcing bar A. It is possible.

According to the reinforcing bar spacer device 1 of the first embodiment, even if some external force is applied to the reinforcing bar A or the reinforcing bar spacer device 1, it can be prevented from falling off the reinforcing bar A.
Further, according to the reinforcing bar spacer device 1 of the first embodiment, the drop-off restricting member 3 is replaced with another spacer 2 having the same configuration as the spacer 2, and the reinforcing bar mounting portions 51 and 51 of the spacers 2 and 2 are reinforcing bars A. The reinforcing bar mounting part inlet 52 of the reinforcing bar mounting part 51 of the spacer 2 and the reinforcing bar mounting part inlet 52 of the reinforcing bar mounting part 51 of another spacer 2 are displaced from each other in the circumferential direction on the outer periphery of the reinforcing bar A. The connecting member 30A that regulates the dropout of the spacers 2 and 2 from the reinforcing bar A by connecting the spacers 2 arranged along the center line AC of the reinforcing bar A and the other spacers 2 while being positioned. 30B, when the spacers 2 and 2 are mounted on the reinforcing bar A, the thickness in the direction along the axial direction of the central line AC of the reinforcing bar A doubles, and the central line of the reinforcing bar A Good weight balance in the direction along the AC Runode, hardly slope at a pressure of the concrete, it is possible to maintain the head thickness of the desired concrete more accurately.
Further, since the connecting members 30A and 30B are constituted by the concave and convex fitting members, it is possible to prevent the dropping from the reinforcing bar A by a simple operation by the concave and convex fitting.

  It should be noted that at least one connecting member constituted by the concave-convex fitting member may be provided.

Embodiment 2
As shown in FIG. 5, the reinforcing bar A is mounted on the reinforcing bar A so as to be aligned along the center line AC of the reinforcing bar A, and the reinforcing bar mounting part inlet 52 and the reinforcing bar mounting part inlet 52 are circumferentially arranged on the outer periphery of the reinforcing bar A. The reinforcing bar spacer apparatus 1 may be provided with a connecting member 30 </ b> C configured by a sandwiching body such as a laundry scissor that sandwiches and connects the spacers 2 and 2 in a state of being shifted from each other.
That is, a reinforcing bar having a configuration including a spacer 2 and a drop-off restricting member 3A, the drop-off restricting member 3A having another spacer 2 having the same configuration as the spacer 2 and a connecting member 30C formed by a sandwiching body. The spacer device 1 may be used.
According to the reinforcing bar spacer device 1 of the second embodiment, after the reinforcing bar mounting portions 51 and 51 of the spacers 2 and 2 are mounted on the reinforcing bar A, at least one of the spacers 2 is centered on the center line 5C of the reinforcing bar mounting portion 51. By rotating (refer to FIG. 5A), the reinforcing bar mounting part inlet 52 of the spacer 2 and the reinforcing bar mounting part inlet 52 of another spacer 2 are positioned on the outer periphery of the reinforcing bar A so as to be shifted from each other in the circumferential direction. Then, the spacers 2 and 2 are sandwiched and connected by a connecting member 30C formed of a sandwiching body (see FIG. 5B), and the reinforcing bar spacer device 1 of the second embodiment is used as a reinforcing bar. Even if some external force is applied to A or the reinforcing bar spacer device 1, the reinforcing bar spacer device 1 can be prevented from falling off the reinforcing bar A.

Embodiment 3
Although not shown, instead of the connecting member 30C configured by the sandwiching body of the second embodiment, the reinforcing bar mounting portion inlet 52 and the reinforcing bar mounting portion inlet 52 are positioned on the outer periphery of the reinforcing bar A at positions shifted from each other in the circumferential direction. A connecting member constituted by a string-like body that binds and connects the spacers 2 and 2 in a state of being used may be used.
That is, a reinforcing bar spacer having a configuration including a spacer 2 and a drop-off restricting member, wherein the drop-out restricting member includes another spacer 2 having the same configuration as the spacer 2 and a connecting member formed by a string-like body. It may be a device.
According to the reinforcing bar spacer device 1 of the third embodiment, after the reinforcing bar mounting portions 51 and 51 of the spacers 2 and 2 are mounted on the reinforcing bar A, at least one of the spacers 2 is centered on the center line 5C of the reinforcing bar mounting portion 51. After the rotation, the reinforcing bar mounting part inlet 52 of the spacer 2 and the reinforcing bar mounting part inlet 52 of another spacer 2 are positioned at positions shifted from each other in the circumferential direction on the outer periphery of the reinforcing bar A. Even if some external force is applied to the reinforcing bar A or the reinforcing bar spacer device 1 in the same manner as the reinforcing bar spacer device 1 of the second embodiment by connecting the connecting members 2 and 2 with a connecting member constituted by a string-like member, the reinforcing bar The reinforcing bar spacer device 1 can be prevented from falling off A.

Embodiment 4
As shown in FIG. 6, the spacer 2 described above and the drop-off restricting member 3 </ b> B are provided, and the drop-off restricting member 3 </ b> B is formed on one guide piece 71 and the other guide piece 72 that form the guide portion 7. It is good also as the reinforcing bar spacer apparatus 1 of the structure formed by the connection member by fitting hole 30D, 30D and the connection rod body 30F which has the fitting part fitted in these fitting holes 30D, 30D at both ends.
According to the reinforcing bar spacer device 1 of the fourth embodiment, after the reinforcing bar mounting portion 51 of the spacer 2 is mounted on the reinforcing bar A (see FIG. 6A), the fitting portions at both ends of the connecting rod 30F are used as one guide piece. 71 and the other guide piece 72 are fitted into the fitting holes 30D and 30D (see FIG. 6B), so that the guide pieces 71 and 72 are opened in the direction in which the reinforcing bar mounting portion entrance 52 of the spacer 2 is opened. Therefore, even if some external force is applied to the reinforcing bar A or the reinforcing bar spacer device 1, the reinforcing bar spacer device 1 can be prevented from falling off the reinforcing bar A.

Embodiment 5
As a spacer, as shown in FIG. 7, without including the connecting portion 6 described above, an outer peripheral structure 4X including a reinforcing bar insertion port 41, and a center line 5C provided on the inner side of the outer peripheral structure 4X. The rebar mounting part 51 that forms the rebar mounting part 51 that coincides with the center line of 4X and includes the rebar mounting part inlet 52 to the rebar mounting part 51 is connected to the rebar insertion port 41 and the rebar mounting part inlet 52. And a guide part 7 for guiding the reinforcing bar from the reinforcing bar insertion opening 41 to the reinforcing bar mounting part 51, and the opening width dimension between the one end 53 and the other end 54 of the reinforcing bar mounting part inlet 52 is larger than the diameter dimension of the reinforcing bar A. In addition to being formed in a small size, each guide piece 71, 72 forming the guide portion 7 is bent so that the opening width size of the reinforcing bar mounting portion entrance 52 is larger than the diameter size of the reinforcing bar A. Using spacer 2X It may be.

Embodiment 6
As a spacer, as shown in FIG. 8, without including the connecting portion 6 described above, an outer peripheral structure 4Y provided with a reinforcing bar insertion port 41, and a center line 5C provided on the inner side of the outer peripheral structure 4Y. A rebar mounting part 51 that forms a rebar mounting part 51 that coincides with the center line of 4Y and includes a rebar mounting part inlet 52 to the rebar mounting part 51 is connected to the rebar insertion port 41 and the rebar mounting part inlet 52. And the guide part 7 formed by the guide pieces 71 and 72 for guiding the reinforcing bar from the reinforcing bar insertion port 41 to the reinforcing bar mounting part 51, and the opening width of the reinforcing bar insertion port 41 and the reinforcing bar mounting part inlet 52 is set to the reinforcing bar A. Alternatively, the spacer 2Y having a configuration slightly larger than the diameter may be used.

Embodiment 7
And it is good also as a reinforcing bar spacer apparatus of the structure provided with the spacer 2X and 2Y demonstrated in Embodiment 5, 6, and the drop-off control member mentioned above.
That is, instead of the spacer 2 of the first to fourth embodiments, a reinforcing bar spacer device having a configuration using the spacer 2X of the fifth embodiment or the spacer 2Y of the sixth embodiment may be used.

  The spacer 2Y in which the opening width dimension of the reinforcing bar mounting portion entrance 52 is slightly larger than the diameter dimension of the reinforcing bar A and another spacer in which the opening width dimension of the reinforcing bar mounting section inlet 52 is slightly larger than the diameter dimension of the reinforcing bar A Even if the reinforcing bar spacer device has a configuration in which 2Y is connected by a connecting member (30A, 30B, 30C, etc. described above), after the reinforcing bar mounting portions 51, 51 of the spacer 2Y and another spacer 2Y are mounted on the reinforcing bar A. One of the spacers 2Y is rotated about the center line 5C of each of the reinforcing bar mounting parts 51, 51, and the reinforcing bar mounting part inlet 52 of the spacer 2Y and the reinforcing bar mounting part inlet 52 of another spacer 2Y are connected to the reinforcing bar. An iron that can be prevented from falling off from the reinforcing bar A by connecting the spacers 2Y and 2Y with connecting members after being positioned at positions shifted from each other in the circumferential direction on the outer periphery of A. A spacer device.

  In addition, the outer periphery structure body 4 may be comprised by cyclic | annular bodies, such as a triangle, a square, and a polygon.

1 rebar spacer device, 2 spacer, 3, 3A, 3B drop-off restricting member,
4 peripheral structure body, 5 mounting portion forming body, 5C center line of reinforcing bar mounting portion, 7 guide portion,
30A, 30B, 30C connecting member, 31 convex portion, 32 concave portion, 41 reinforcing bar insertion port,
51 Reinforcing bar mounting part, 52 Reinforcing bar mounting part entrance, A Reinforcing bar, AC Reinforcing bar center line.

Claims (3)

Reinforcing bar spacer device for forming the cover thickness of concrete from the surface of the concrete that is mounted on the reinforcing bar and placed around the reinforcing bar,
A spacer and a drop-off regulating member;
The spacer is formed by removing a part of the ring body and forming a reinforcing bar insertion portion formed on the inner side of the outer peripheral structure body and having the same center as that of the outer peripheral structure body. And a mounting part forming body having a reinforcing bar mounting part entrance to the reinforcing bar mounting part, and a guide part for connecting the reinforcing bar insertion port and the reinforcing bar mounting part inlet to guide the reinforcing bar from the reinforcing bar insertion port to the reinforcing bar mounting part. ,
The drop-off restricting member is connected to the spacer in a state where the drop-off restricting member restricts the drop-off of the spacer from the reinforcing bar after the reinforcing bar mounting portion of the spacer is attached to the reinforcing bar. The drop-off regulating member is
Another spacer having the same configuration as the spacer;
After each reinforcing bar mounting part of each spacer is mounted on the reinforcing bar, the reinforcing bar mounting part inlet of the reinforcing bar mounting part of the spacer and the reinforcing bar mounting part inlet of the reinforcing bar mounting part of another spacer are circumferentially connected to each other on the outer periphery of the reinforcing bar. A connecting member that regulates the dropout of each spacer from the reinforcing bar by connecting the spacer arranged along the center line of the reinforcing bar and another spacer while being positioned at a shifted position. The reinforcing bar spacer apparatus according to claim 1.   The connecting member is provided in a concave-convex fitting member formed by a concave portion provided in a spacer arranged along the center line of the reinforcing bar and a convex portion provided in another spacer, or a spacer arranged along the central line of the reinforcing bar. The reinforcing bar spacer device according to claim 2, wherein the reinforcing bar spacer device is constituted by a concave-convex fitting member including a convex portion and a concave portion provided in another spacer.

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