JPH0674716U - Reinforced concrete connection structure for reinforced concrete - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a connecting structure of a reinforcing bar for reinforced concrete, which enables the work at the place where the attachment and joining are to be performed as easily as possible. A male coupler 2 having a hole (21) into which one rebar (1A) to be connected is inserted, and a hole (31) into which the other rebar (1B) to be connected is inserted. It consists of a female coupler (3) that fits into the coupler (2) and a snap ring (4) that connects both couplers (2, 3). A groove (22) is formed, and a groove (32) is formed on the inner circumference of the female coupler (3) at a position corresponding to the sawtooth groove (22) of the male coupler (2). Connect the reinforcing bars for reinforced concrete using the existing connection fittings.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting structure for reinforcing bars for reinforced concrete.

[0002]

[Prior art]

 Conventionally, the following structure has been adopted as the joining method for reinforcing bars for reinforced concrete.

One in which the ends of the reinforcing bars to be connected are superposed and joined by a binding wire, one that is heated and crimped, and one that is joined by various types of joint hardware.

[0004]

[Problems to be solved by the device]

 However, the conventional method has the following problems.

In the case where the reinforcing bars of a structure are dense, for example, when trying to join the reinforcing bars of columns and beams to each other by prefabricating, when using the conventional method, actually attaching and joining It was necessary to carry out all the joining work in the place, and it took a lot of manpower and time to carry out the joining work of the reinforcing bars on site.

[0006] Therefore, the present invention has been made for the purpose of providing a connecting structure of a reinforcing bar for a reinforced concrete, which can perform work in a place where attachment and joining are to be performed as easily as possible.

[0007]

[Means for Solving the Problems]

 According to the connecting structure of a reinforcing bar for reinforced concrete of the present invention, a male coupler having a hole for inserting one reinforcing bar to be connected and a hole for inserting the other reinforcing bar to be connected are fitted to the male coupler. It consists of a female coupler and a snap ring that connects both couplers.There are several serrated grooves formed all around the outer circumference of the male coupler, and the male coupler described above Grooves are formed at the positions corresponding to the serrated grooves.The male coupler and the female coupler are fixed to the reinforcing bars to be connected in advance, and the snap ring is fitted into the groove of the female coupler to attach the male coupler to the female coupler. , And the snap ring is fitted over the groove of the female coupler and the serrated groove of the male coupler to connect both couplers.

[0008]

[Action]

 The male coupler and the female coupler are respectively fixed to the reinforcing bars to be connected in advance. Fit the snap ring into the groove of the female coupler and insert the male coupler into the female coupler. The snap ring is fitted over the groove of the female coupler and the serrated groove of the male coupler to connect both couplers and to connect the reinforced concrete rebar.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1A and 1B are reinforcing bars for reinforced concrete to be connected. The connecting hardware for connecting the reinforcing bars 1A and 1B has a male coupler 2 having a hole 21 for inserting one reinforcing bar 1A to be connected, and a hole 31 for inserting the other reinforcing bar 1B to be connected. It comprises a female coupler 3 that fits into the coupler 2 and a snap ring 4 that connects both couplers 2 and 3. On the outer circumference of the male coupler 2, several serrated grooves are formed over the entire circumference, and in the illustrated example, two serrated grooves 22 are formed. Also, on the inner circumference of the female coupler 3, the male coupler 2 is covered over the entire circumference. A groove 32 is formed at a position corresponding to the saw-toothed groove 22.

The male coupler 2 and the female coupler 3 are respectively fixed to the reinforcing bars 1A and 1B to be connected in advance. As a fixing method, the portion A in FIG. 1 is joined by an appropriate method such as pressure bonding or adhesion. When the reinforcing bars 1A and 1B have screws at their ends, female screws may be formed on both couplers 2 and 3 and fixed by screwing.

To join the reinforcing bars 1A and 1B, the snap ring 4 is fitted into the groove 32 of the female coupler 3, and the male coupler 2 is inserted into the female coupler 3 as shown in FIGS. When the nap ring 4 spreads and the snap ring 4 comes to the position of the groove 22 of the male coupler 2, the snap ring 4 returns to its original shape again. In the state where the male coupler 2 is completely inserted into the female coupler 3, as shown in FIG. 1, the two snap rings 4 are fitted into the groove 32 of the female coupler 3 and the groove 22 of the male coupler 2, and both couplers 2, 3 is concluded. Since the groove 22 formed in the male coupler 2 is a sawtooth groove, the one-way clutch is formed by the couplers 2 and 3 and the snap ring 4.

The number of grooves 22 and 32 of both couplers 2 and 3 and the number of snap rings 4 depend on the joining condition and are not particularly specified.

[0014]

[Effect of device]

 In the present invention, the male coupler and the female coupler are attached to the rebars to be connected in advance, and at the place where the attachment and joining are to be performed, that is, both couplers are simply fitted together at the place where they are to be joined. Therefore, it is possible to significantly reduce the manpower and time required for the work of connecting the reinforcing bars in the field.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state in which a reinforcing bar is connected by a reinforcing bar connecting hardware according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a first process diagram of connecting the reinforcing bars by using the reinforcing bar connecting hardware according to the embodiment of the present invention.

FIG. 4 is a second process diagram of connecting the reinforcing bars by using the reinforcing bar connecting hardware according to the embodiment of the present invention.

[Explanation of symbols]

 1A, 1B ... Reinforcing bar 2 ... Male coupler 3 ... Female coupler 4 ... Snap ring 21 ... Reinforcing bar insertion hole 22 ... Groove 31 ... Reinforcing bar insertion hole 32 ... Groove

Claims (1)

[Scope of utility model registration request] 1. A male coupler having a hole into which one reinforcing bar to be connected is inserted, a female coupler having a hole into which the other reinforcing bar to be connected is fitted and fitted into the male coupler, and both couplers are coupled. It consists of a snap ring and has several sawtooth grooves formed all around the outer circumference of the male coupler.
Further, a groove is formed on the inner circumference of the female coupler at a position corresponding to the saw-toothed groove of the male coupler, and the male coupler and the female coupler are fixed to the reinforcing bars to be connected in advance, respectively. The reinforced concrete is characterized in that a snap ring is fitted into the groove of, the male coupler is inserted into the female coupler, and the snap ring is fitted over the groove of the female coupler and the serrated groove of the male coupler so as to connect both couplers. Reinforcing bar connection structure.