JPH0658015U - Pilot anchor bolt, its bolt cover - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Anchor bolts and protective gears that are effective in moving smoothly from the various obstacle accidents of the anchor bolts involved in the foundation work of the structure. The purpose is to provide. [Structure] An upper end is formed into a conical shape, and in order to easily break this conical portion, a deep groove 3 is formed at the base of the conical portion 2.
The pilot anchor bolt 1 is formed by forming a pilot anchor bolt 1 and a cylindrical pipe covering the pilot anchor bolt 1, the upper end of which is formed into a conical shape, and the cut lines for dimension adjustment are formed vertically and horizontally at the lower portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is an anchor bolt with a conical upper end that is easily fitted into a mounting bolt hole of a base plate when setting a pillar for steel frame work. The top conical anchor bolt cover is a pilot anchor bolt cover that covers the anchor bolt and exhibits the same effect as above.

[0002]

[Prior art]

 With conventional anchor bolts, it was difficult to align them with the mounting bolt holes in the base plate when setting columns for steel frame construction, and the thread of the bolt could be damaged. For this reason, there was a demand for improvements in the shape, clear marking of the position by coloring, and the need for protective equipment.

[0003]

[Problems to be solved by the device]

 Therefore, the purpose of the present invention is to provide an anchor bolt and a protector for the anchor bolt, which have an effective shape so as to escape from various accidents caused by the construction of the anchor bolt and to smoothly proceed with the work. .

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the anchor bolt of the present invention has a conical top end and a deep groove formed at the base of the conical part so that the conical part can be easily broken. Anchor bolt. The anchor bolt cover is a pilot anchor bolt cover made of a synthetic resin or metal cylindrical pipe whose upper end is formed into a conical shape and cut lines for dimension adjustment are formed vertically and horizontally at the lower part.

[0005]

[Operation] Since the anchor bolt of the present invention configured as described above has the conical shape formed at the uppermost end, it can be easily worked without any trouble in fitting the base plate of the pillar such as steel frame work, and the nut can be used. After fixing, tap the conical head with a hammer several times to break it off. For the anchor bolt cover, the anchor bolt covered with this can work smoothly like the above anchor holt, and the height of the cover is cut off unnecessary parts by the dimensional adjustment notch line formed at the bottom. Adjust it. As a result, it is possible to prevent damage to the threads of the anchor bolt and stain.

[0006]

【Example】

 An embodiment will be described with reference to the drawings. This is a pilot anchor bolt in which the upper end of an anchor bolt 1 in FIG. 1 is formed into a conical shape, and a deep groove 3 is formed at the base of the conical portion 2. Next, in FIG. 2, a pilot anchor bolt cover is provided in which a cylindrical pipe 4 made of synthetic resin is provided, an upper end is molded into a conical portion 5, and a cut line 6 for dimension adjustment is formed vertically and horizontally on the lower portion.

[0007]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. The head of the bolt is rounded to fit the base plate of the pillar such as steel frame construction, so the fitting work can be performed smoothly and the finish is beautiful. It also prevents damage and stains on the bolt threads. The pilot anchor bolt cover also has the same effect, and has the advantage that the work is easy and the cost is low.

[Brief description of drawings]

FIG. 1 is a front view of a pilot anchor bolt.

FIG. 2 is a front view showing a partial cross section of a pilot anchor bolt cover.

[Explanation of symbols]

 1 Anchor bolt body 2 Conical part of anchor bolt 3 Deep groove of anchor bolt 4 Cylindrical pipe of anchor bolt cover 5 Conical part of anchor bolt cover 6 Break line for dimension adjustment of anchor bolt cover

Claims (2)

[Scope of utility model registration request] 1. A pilot anchor bolt in which an upper end of the anchor bolt is formed into a conical shape, and a deep groove is formed in a base portion of the conical shape so that the conical portion can be easily broken. 2. A pilot anchor bolt cover made of a synthetic resin or metal cylindrical pipe, the upper end of which is formed into a conical shape, and the cut lines for dimension adjustment are formed vertically and horizontally at the lower part.