JPH0592310U - Construction spacer - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In construction work, the concrete cover of the puffed bar of the puffed part formed above the beam can be reliably retained, and the reinforcing bar and H-shaped beam member can be easily welded without any trouble. A height adjustable build spacer that can be attached to the. [Structure] On a cylindrical main body 1 having a holding portion 2 fixed to a lower portion thereof, a support rod 4 having a holding portion 3 attached to the upper portion thereof is vertically movably provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spacer for retaining the concrete cover height of pavement when a pavement is formed above a beam part in construction work.

[0002]

[Prior Art]

 Conventionally, as a method of maintaining the covering distance of the puffer bar, the pucker bar is welded to the stirrup of the beam, or the streak of the U-shaped pucker that is wound at an appropriate height with a bundling line is connected to the stirrup by the bundling line. The method of wrapping is common, but if there is a strong problem in retaining puffer muscles, such as the number of puffer muscles being large, or the puffer bar diameter being large and heavy, Since it cannot be wrapped around the stirrups in the puffed part, an angle type iron plate or the like is processed into a gate type base. For example, in the case of SRC construction, the gate type of the beam type is welded to the H type steel material of the beam member. The puffer muscle was arranged on the table.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional method, since the angle-type iron plate or the like is welded to the H-shaped steel material of the beam member in the platform processed by the gate type, a welding portion is added to the member in the body, which is preferable in design. Also, in terms of construction work, a full-time welding specialist is required, and welding work cannot be performed in rainy weather, which delays the progress of work. In addition, since the height cannot be adjusted, the puffer muscle cannot be arranged accurately.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to have sufficient strength for holding the covering of puffer bars and to eliminate the need for welding for attaching to the reinforcing bar or the H-shaped beam member. Can be easily installed. Moreover, the height of the spacer can be easily adjusted and the spacer can be arranged with high precision.

As a means therefor, a supporting rod provided with a holding portion for the set-up streak is provided above the axial center of the cylindrical main body to which a holding portion fixed to the flange portion of the H-beam member is fixed. It is characterized by being installed vertically so that it can move forward and backward.

With the above-described structure, since the reinforcing member or the holding portion of the flange portion of the H-shaped beam member is fixed to the lower portion of the tubular body, it can be easily attached without the labor of welding. Moreover, since the supporting rod with the holding portion for the setup streak installed above it is vertically installed along the axis of the tubular body so that it can be moved up and down, the height can be easily adjusted. The problem of is solved.

[0007]

【Example】

 FIG. 1 is a perspective view showing an embodiment of the present invention, in which a lower horizontal arm 2a is provided with a bolt 2b capable of moving up and down at the lower end of a hollow cylindrical main body 1 having an appropriate height. The U-shaped holding portion 2 is fixed, and the fastening bolt 1a for the support rod 4 which can be moved forward and backward is screwed on the outer periphery. Next, at the upper end of the supporting rod 4 which is formed at an appropriate height, a tubular-shaped holding portion 3 in which a fastening bolt 3a capable of moving up and down is screwed is attached to the lower side, and the hollow portion of the tubular body 1 is attached. Along the shaft center, it is vertically inserted and inserted so that it can move up and down. Further, as shown in FIG. 4, the holding portion 42 is opened to the lower surface to form a U-shape, and one of the vertical pieces is provided with a fastening bolt 42b capable of advancing and retreating left and right. In particular, it is easy to attach to a reinforcing bar, or a metal body in the shape of a turnpuckle with an appropriate diameter is used as a substitute for the tubular body, and a male thread portion for screwing the support rod into the female thread portion of the metal piece is screwed. It is easy to think that it is possible to adjust the vertical height by moving the screw back and forth (not shown).

FIG. 2 is a reference view showing a usage state of the embodiment of the present invention, and FIG. 3 is a partial cross-sectional view showing a use state of the embodiment of the present invention, both of which are H-shaped inside the beam in SRC construction. This is for mounting on steel. After arranging the beam reinforcement, the construction spacer of the present invention is fixed to one desired position on one of the upper flanges of the H-shaped steel material A by tightening the bolts 3a of the holding portion 3 and fitted into the cylindrical main body 1. The rod 4 is moved up and down, adjusted to a predetermined height, and fixed with a tightening bolt 1a screwed on the outer circumference of the tubular body 1. Similarly, the other upper flange portion of the H-shaped steel material A is provided in parallel with each other so as to face each other, and the set-up streak D is inserted into each of the holding portions 3 attached to the upper ends of the supporting rods 4 for tightening bolts. Fix with 3a. By the above method, the construction spacers of the present invention are continuously arranged at the required positions and intervals of the H-shaped steel material of the beam portion, and the puffer bars are placed at the required intervals and arranged.

[0009]

[Effect of the device]

 As described in detail above, according to the construction spacer of the present invention, since the holding portion of the reinforcing bar or the flange portion of the H-shaped beam member is fixed to the lower portion of the tubular body, anyone can easily perform welding without the trouble of welding. It can be installed, does not require a dedicated person for installation, and can work regardless of the weather, so it is possible to reliably progress the work. A support rod with a setup bar holding part attached to the top of the tubular body was installed vertically so that it could move up and down along the axis of the tubular body, so the height can be easily adjusted and the bar arrangement can be performed accurately. it can. Further, it is possible to obtain a practically useful construction spacer, which is economically advantageous because it eliminates the trouble of manufacturing it on site.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a reference diagram showing a usage state of the embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing a usage state of an embodiment of the present invention.

FIG. 4 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Cylindrical body 1a Tightening bolt 2 Clamping part 2a Lower horizontal arm 2b Bolt 3 Holding part 3a Tightening bolt 4 Support rod A H-shaped steel material B Beam main bar C Puffer bar D Setup bar E Angle material F Beam form frame G concrete foundation

Claims (1)

[Scope of utility model registration request] 1. A support rod having a holding portion for a setup bar upwardly reciprocally movable up and down along an axis of a tubular main body having a holding portion fixed to a flange portion of a reinforcing bar or an H-shaped beam member below. A construction spacer characterized by being installed vertically.