JP3150525U - Reinforcing bar spacer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing bar construction spacer which can be applied to various covers by one body. SOLUTION: A block 2 for abutting against a formwork 7, a support bar 3 projecting on the surface opposite to the abutment side of the block 2, and a bifurcated shape with a width into which the support bar 3 can be inserted and a bolt hole on the upper surface 4a is opened and the leg 4 is formed with a recess 4b and a small recess 4c in which a horizontal reinforcing bar 6 can be arranged in a direction orthogonal to the support bar 3, and a bolt hole 4a of the receiver 4 is screwed. The reinforcing bar 6 is constituted by a fixing bolt 5 which is pressed against and fixed to the recess 4b or the small recess 4c together with the support bar 3. The support bar 3 is placed on the upper surface of the reinforcing bar 6 with the tip of the block 2 placed on the formwork 7, and the support 4 is inserted so as to straddle the support bar 3 from above, and the reinforcing bar 6 is inserted into the recess 4b or small recess 4c. The fixing bolt 5 is screwed into the bolt hole 4a of the receiving tool 4, and the reinforcing bar 6 is pressed into the recess 4b or the small recess 4c together with the support bar 3 and fixed. [Selection] Figure 1

Description

  The present invention relates to a spacer for maintaining a constant distance (hereinafter referred to as “cover”) between a formwork and a reinforcing bar in reinforcing bar construction.

  Conventional reinforcing bar spacers are disclosed in Patent Documents 1 to 3. The technology of Patent Document 1 includes a block for contacting a mold, a support bar protruding from the surface opposite to the contact side of the block, a J-type arm fixed to a side end of the support bar, and a J-type arm It is composed of a nut fixed to the tip of the screw and a bolt that is screwed into the nut. A block is inserted between the horizontal reinforcing bar and the formwork, and the J-shaped arm is engaged with the horizontal reinforcing bar. By fixing the reinforcing bars with bolts, the cover can be kept constant.

  The technology of Patent Document 2 is that a block for contacting a mold, a support bar having a hook portion protruding from the surface opposite to the contact side of the block and bent downward, and a lower end of the support bar at a right angle It is characterized in that it is composed of a latching portion bent in the direction, and a block is inserted between the horizontal rebar and the formwork from above, and the hook portion of the support bar is fitted to the horizontal rebar, By locking the locking portion to the vertical reinforcing bar, the cover can be held constant and firmly.

  The technology of Patent Document 3 includes a block for coming into contact with a mold, a bendable iron wire protruding up and down from a surface opposite to the contact side of the block, and a locking portion where the lower end of the iron wire is bent at a right angle The block is inserted between the horizontal reinforcing bar and the formwork from above, the upper iron wire is bent and wound around the horizontal reinforcing bar, and the lower iron wire locking part is bent and vertically By covering the rebar in the direction, the cover can be held constant and firmly.

  By the way, since all of the above-mentioned spacers for rebar construction are fixed to one type of cover, it is necessary to prepare a spacer with a dimension corresponding to the cover when using it in a place where the cover is different. There was a problem of cost.

JP 2004-137869 A JP 2004-270431 A JP 2006-2510 A

  The problem to be solved by the present invention is to solve these conventional problems and provide a spacer for rebar construction that can be applied to various covers by one body.

The configuration of the present invention that solves this problem is as follows.
1) Reinforcing bar construction spacer that keeps the space between the formwork and the rebars constant in rebar construction, protruding from the opposite side of the block to contact the formwork and the contact side of the block A support bar, a fork with a width that allows the support bar to be inserted, a bolt hole in the upper surface, and a recess in which a horizontal reinforcing bar can be arranged in the direction perpendicular to the support bar on both leg pieces, and the bolt of the support Reinforcing bar spacer 2) It is composed of a fixing bolt that is screwed into the hole and fixed to the recess together with the supporting bar. The supporting bar has a reinforcing bar and a formwork on its long side. The reinforcing bar spacer 3) described in 1) above, wherein the support rod is a flat plate, and the opening is partially formed in the middle thereof 1) or 2) Reinforcing bar construction spacer 4) Receptor is concave Reinforcing bar construction spacer 5) described in any one of 1) to 3) above, wherein the block is made of concrete or mortar. It exists in the spacer for rebar construction in any one of 1) -4).

  In the present invention, the support bar is placed on the upper surface of the reinforcing bar with the tip of the block placed on the formwork, the receiving bar is inserted from above the supporting bar, and the reinforcing bar is placed in the recess of the receiving bar. The cover is slid along the support bar to accurately adjust the cover, and then the fixing bolt is screwed into the bolt hole of the receiving tool and the rebar is pressed into the recess together with the support bar and fixed. Thus, in the state before mounting, it has a structure that can change the fixing position of the reinforcing bar, so if the cover is different, you can fix the reinforcing bar at any position by sliding the receiving tool along the support bar, A single body can handle various types of fog.

It is a perspective view of the spacer for reinforcing bar construction of an example. It is explanatory drawing which shows the attachment order of the spacer for reinforcing bar construction of an Example. It is a perspective view of the spacer for reinforcing bar construction of other examples of an example.

  In the present invention, when the configuration described in 2) is provided, the fog can be easily adjusted without preparing a ruler or the like at the time of attachment. If it comprises the structure of said 3), concrete will distribute | circulate the opening of a support bar at the time of concrete placement, and a concrete and a support bar can be firmly integrated after solidification. As the support rod, a flat plate or a reinforcing bar is used. If the structure of said 4) is comprised, the reinforcing bar of a different outer diameter can be arrange | positioned by one body. If it comprises the structure of said 5), a reinforcing bar can be rusted after concrete placement.

  Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view of a reinforcing bar construction spacer according to the embodiment, FIG. 2 is an explanatory view showing the mounting order of the reinforcing bar spacer according to the embodiment, and FIG. 3 is a perspective view of a reinforcing bar spacer of another example of the embodiment. is there. In the figure, 1 is a spacer for rebar construction, 2 is a block, 2a is a contact surface, 3 is a support bar, 3a is a scale, 3b is an opening, 4 is a receiver, 4a is a bolt hole, 4b is a recess, 4c is A small recess 5 is a fixing bolt, 6 is a reinforcing bar, and 7 is a formwork.

  FIG. 1 shows a reinforcing bar construction spacer 1 of this embodiment. The block 2 is made of triangular concrete, and has an arcuate contact surface 2a at the tip. The dimensions are 120 mm in length, 90 mm in width, and 50 mm in thickness. The support bar 3 is made of metal, and a scale 3a is formed on the longitudinal side, and an opening 3b is partially formed in the middle. The scale 3a is formed at an interval of 10 mm with the tip of the block 2 as a reference. The dimensions are 250 mm in length, 24 mm in width, and 7 mm in thickness, and are projected integrally when the block 2 is molded.

  The support 4 is made of a bifurcated metal with a width into which the support bar 3 can be inserted. A bolt hole 4a for screwing the fixing bolt 5 is opened on the upper surface, and both leg pieces are cut out in a hook shape to form a horizontal rebar 6. Is formed from the side, and a small recess 4c is formed at the bottom of the recess 4b for placing the small-diameter reinforcing bar 6. The dimensions are 45 mm in length, 70 mm in height, and 35 mm in width.

The mounting order of the reinforcing bar spacer 1 of this embodiment will be described with reference to FIG.
1) The mold 7 is constructed and the reinforcing bars 6 are arranged vertically and horizontally.
2) The contact surface 2a of the block 2 is brought into contact with the mold frame 7, and the support bar 3 is disposed on the upper surface of the reinforcing bar 6 (see FIG. 2A).
3) Insert the receiving tool 4 with the bolt 5 removed (or loosened) from above the support bar 3, and insert the reinforcing bars 6 into the recesses 4 b or small recesses 4 c of the receiving tool 4 sideways. (See FIG. 2B). In this example, the reinforcing bars 6 are arranged in the small recesses 4c.
4) Check the fogging on the scale 3 a of the support bar 3, and if it is deviated from the specified value, slide the receiving tool 4 along the support bar 3 to adjust.
5) The fixing bolt 5 is screwed into the bolt hole 4a of the receiving tool 4, and the reinforcing bar 6 is pressed and fixed to the small recess 4c together with the support bar 3 (see FIG. 2C).
6) Place a concrete.

  Thus, since it has a structure in which the fixing position of the reinforcing bar 6 can be changed in the state before the attachment, if the cover is different, the reinforcing bar 6 can be moved to an arbitrary position by sliding the support 4 along the support bar 3. It can be fixed with. Therefore, one body can cope with various cover, and the cost of the reinforcing bar construction can be reduced.

  FIG. 3 shows another example of the reinforcing bar spacer 1 of the embodiment. In this example, the support bar 3 is composed of a small-diameter rebar, and the scale 3a based on the tip of the block 2 is formed on the surface thereof at intervals of 10 mm. The reinforcing bar spacer 1 of this example can be manufactured at a low cost as compared with the example. In addition, a code | symbol, a structure, an attachment method, and an effect are the same as an Example.

  The technology of the present invention is used for rebar construction.

DESCRIPTION OF SYMBOLS 1 Spacer for rebar construction 2 Block 2a Contact surface 3 Support rod 3a Scale 3b Opening 4 Receiving tool 4a Bolt hole 4b Recess 4c Small recess 5 Fixing bolt 6 Rebar 7 Formwork

Claims (5)

  Reinforcing bar construction spacer that keeps the space between the formwork and the rebars constant in rebar construction, and a support bar that protrudes on the opposite side of the block to the contact side of the block. And a receiving tool in which a bolt hole is opened on the upper surface with a width into which the support bar can be inserted, and a recess is formed in which both side leg bars can be arranged in a direction perpendicular to the support bar. Reinforcing bar construction spacer, characterized by comprising a fixing bolt that is screwed together to fix the reinforcing bar together with the support rod in pressure contact with the recess.   The spacer for reinforcing bar construction according to claim 1, wherein the support bar is formed with a scale for measuring a distance between the reinforcing bar and the formwork on the longitudinal side thereof.   The spacer for reinforcing bar construction according to claim 1 or 2, wherein the support rod is flat and has an opening partially formed in the middle thereof.   The spacer for reinforcing bar construction according to any one of claims 1 to 3, wherein the receiving member is formed with a small recess capable of arranging another small-diameter reinforcing bar at the bottom of the recess.   The spacer for reinforcing bar construction according to any one of claims 1 to 4, wherein the block is made of concrete or mortar.

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