Anchor mounting auxiliary device, anchor mounting device, and anchor mounting method using anchor mounting device

Abstract

To provide an anchor mounting auxiliary device which is inexpensive and does not give impact, an anchor mounting device having the anchor mounting auxiliary device, and an anchor mounting method using the anchor mounting device.SOLUTION: An anchor mounting auxiliary device for fixing an anchor having a cylindrical anchor body, an engagement part having a larger diameter at the tip of the anchor body, an anchor female screw part which is a female screw inside the rear end of the anchor body and a core material for enlarging the diameter of the engagement part has a shaft part and a head part connected to the shaft part, has a male screw part which is a male screw outside the shaft part and a female screw part which is a female screw inside the shaft part. The female screw part is arranged so as to penetrate the head part and the shaft part, and the male screw part is allowed to be screwed with the anchor female screw part. The anchor mounting device has the anchor mounting auxiliary device and a bolt.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an anchor installation assist device for installing an anchor, an anchor installation device having the anchor installation assist device, and an anchor installation method using the anchor installation device. [Background technology]

[0002] An anchor is an anchor that is expanded in diameter to engage and fix in a hole drilled in a base material, and components such as bolts and hooks can be attached to the anchor body. Such anchors can be attached to metal components as well as concrete components, and various components can be attached to the female threads provided on the anchor.

[0003] Methods for attaching an anchor to a base material include, for example, drilling a hole in the base material and pouring adhesive into the hole to secure the anchor, or expanding the anchor body within the hole and securing the anchor by engaging the hole with the expanded anchor body, or a combination of these.

[0004] Among these, those in which the anchor body expands within a hole and the hole engages with the expanded part to secure the anchor have a built-in core material that serves as a core for expanding the anchor body, and the anchor body expands when the core material is driven in.

[0005] In the conventional method of fixing an anchor, a driving rod is used to drive in the core material, and the driving rod is struck with a hammer to push in the core material and expand the diameter of the anchor body in the anchor. However, the impact of the hammer striking the anchor can damage the base material to which the anchor is to be attached. This is especially true when the base material is an aged manhole frame.

[0006] Therefore, for example, in the anchor driving machine disclosed in the non-patent literature, a hydraulically driven piston gradually pushes in the core material to expand the diameter of the anchor body, thereby fixing the anchor. Therefore, the risk of damaging the base material due to impact is reduced.

[0007] However, the anchor driving machine is relatively expensive, which makes people hesitate to purchase it, and therefore, in order to popularize it, there is a demand for a cheaper device. [Prior art documents] [Non-patent literature]

[0008] https: / / sanko-techno.co.jp / products / tools / tools01 / Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an anchor installation auxiliary device that is inexpensive and does not apply shock, an anchor installation device having the anchor installation auxiliary device, and a method of installing an anchor using the anchor installation device. [Means for solving the problem]

[0010] In order to solve the above problems, an anchor installation auxiliary device in a first aspect has a tubular anchor body, a locking portion that expands in diameter at a tip of the anchor body, an anchor female screw portion that is a female screw inside a rear end of the anchor body, and a core material that expands in diameter of the locking portion, and in order to fix the anchor, the anchor has a shank and a head connected to the shank, and has a male screw portion that is a male screw on the outside of the shank and a female screw portion that is a female screw inside the shank, the female screw portion is arranged to pass through the head and the shank, and the male screw portion is capable of screwing into the anchor female screw portion.

[0011] In order to solve the above-mentioned problems, an anchor installation auxiliary device in a second aspect has a shank and a head connected to the shank in order to fix an anchor comprising: a cylindrical anchor body, a locking portion expanding in diameter at a tip of the anchor body, an anchor female screw portion which is a female screw inside a rear end of the anchor body, and a core material which expands in diameter of the locking portion, and has a male screw portion which is a male screw on the outside of the shank and a female screw portion which is a female screw inside the shank, the female screw portion is arranged to penetrate the head and the shank and can be screwed with a bolt, the core material can be pressed when the bolt is arranged in the female screw portion, and the male screw portion can be screwed with the anchor female screw portion.

[0012] In order to achieve the above object, an anchor installation device in a third aspect has an anchor body having a cylindrical shape, a locking portion expanding in diameter at a tip end of the anchor body, an anchor female screw portion which is a female screw inside a rear end of the anchor body, and a core material which expands in diameter of the locking portion, and in order to fix the anchor in a hole, the anchor has a shank and a head connected to the shank, and has a male screw portion which is a male screw on the outside of the shank, and a female screw portion which is a female screw inside the shank, the female screw portion is disposed so as to penetrate the head and the shank, and the male screw portion is the anchor female screw The system has an anchor attachment auxiliary device that can be screwed into the screw portion, and a bolt having a bolt shank that serves as the shank, and a bolt head that serves as the head; the anchor is placed in the hole, and the male screw portion is screwed into the female screw portion of the anchor to connect the anchor and the anchor attachment auxiliary device, and the bolt shank is screwed into the female screw portion to connect the anchor attachment auxiliary device and the bolt; and by further rotating the bolt head, the bolt shank presses against the core material, expanding the diameter of the engagement portion, and the hole and the engagement portion engage.

[0013] In order to achieve the above object, an anchor installation device in a fourth aspect includes an anchor body having a cylindrical shape, a locking portion expanding in diameter at a tip end of the anchor body, an anchor female screw portion which is a female screw inside a rear end of the anchor body, and a core material which expands in diameter of the locking portion. In order to fix the anchor in a hole, the anchor has a shaft portion and a head portion connected to the shaft portion, and has a male screw portion which is a male screw outside the shaft portion and a female screw portion which is a female screw inside the shaft portion, the female screw portion is disposed so as to penetrate the head and the shaft portion, and the male screw portion is the anchor female screw The anchor has an anchor attachment auxiliary device that can be screwed into the core portion, a bolt having a bolt shank that serves as the shank and a bolt head that serves as the head, and a washer; the anchor is placed in the hole, the male threaded portion is screwed into the female threaded portion of the anchor to connect the anchor and the anchor attachment auxiliary device, and the bolt shank is screwed into the female threaded portion via the washer to connect the anchor attachment auxiliary device and the bolt; and by further rotating the bolt head, the bolt shank presses against the core material and the hole and the locking portion engage.

[0014] In order to solve the above-mentioned problems, an anchor mounting method according to a fifth aspect includes an anchor placing step of placing an anchor in a hole, an anchor mounting device placing step of attaching the anchor mounting device of the third or fourth aspect to the anchor placed by the anchor placing step, and an anchor engaging step of rotating the bolt in the anchor mounting device placed by the anchor mounting device placing step, so that the bolt shank presses the core material and the hole and the locking portion engage with each other. Effect of the Invention

[0015] Because the present invention is constructed and operates as described above, it is possible to provide an anchor installation auxiliary device that is inexpensive and does not cause shock, an anchor installation device having the anchor installation auxiliary device, and a method of installing an anchor using the anchor installation device. [Brief description of the drawings]

[0016] [Figure 1]1A is a front view of the anchor installation assistance device, and B is a bottom view of the anchor installation assistance device. [Diagram 2] 1A is a plan view of the anchor installation assistance device, and FIG. 1B is a cross-sectional view of the anchor installation assistance device. [Diagram 3] A is a plan view of the bolt and washer, and B is a front view of the bolt and washer. [Figure 4] 1A is a front view showing an anchor installation auxiliary device, a bolt, and a washer assembled together, and FIG. 1B is a cross-sectional view showing an anchor installation auxiliary device, a bolt, and a washer assembled together. [Diagram 5] A is a front view of the anchor, B is a plan view of the anchor, and C is a bottom view of the anchor. [Figure 6] 1A is a cross-sectional view of the anchor, and FIG. 1B is a cross-sectional view showing a state in which the engagement portion of the anchor is expanded. [Figure 7] A is a conceptual diagram showing a state where a hole is made in a base material with a drill. B is a conceptual diagram showing a state where powder of the base material is sucked in. C is a conceptual diagram showing a state where the hole is cleaned with a brush. D is a conceptual diagram showing a state where powder of the base material is sucked in again. E is a conceptual diagram showing a state where adhesive is applied to the hole. [Figure 8] FIG. 1A is a diagram showing a state in which the anchor is attached to the hole and the anchor attachment device is attached to the anchor. FIG. 1B is a cross-sectional view of the state shown in FIG. [Figure 9] 1A is a diagram showing a state in which the anchor is fixed in the hole by the anchor installation device, and FIG. 1B is a cross-sectional view of the state shown in FIG.

[0017] Before describing the anchor installation assist device 10 in the first embodiment with reference to the illustrated embodiment, the anchor 300 will be described first. The anchor 300 has a cylindrical anchor body 310 and a locking portion 340 whose diameter can be expanded from a tip portion 320 to an intermediate portion 330 of the anchor body 310. The locking portion 340 has a plurality of slits 350 which are cuts, and the plurality of slits 350 are arranged to extend in the longitudinal direction from the tip portion 320 to the intermediate portion 330 of the anchor body 310. The inside of the locking portion 340 is tapered so that the inner diameter gradually decreases from an intermediate portion inner diameter 330A to a tip portion inner diameter 320A from the intermediate portion 330 to the tip portion 320.

[0018] The inside of the rear end 360 of the anchor 300 has an anchor female thread portion 370, which is a female thread, and can be used to attach the anchor installation auxiliary device 10. Furthermore, the female thread portion 370 can be used to attach bolts and hooks (not shown).

[0019] The anchor 300 has a columnar core 400 disposed inside the anchor body 310. The core 400 is preferably approximately half the length of the anchor body 310, and when the core 400 is pressed toward the tip 320, the inside of the locking portion 340 is configured so that the inner diameter gradually decreases from the middle portion 330 to the tip 320. The core 400, which is pressed and moved, expands the multiple slits 350, thereby expanding the diameter of the locking portion 340 disposed from the tip 320 to the middle portion 330 of the anchor body 310. The expanded locking portion 340 engages with the hole H to be attached, thereby fixing the anchor 300 to the hole H. This will be described later.

[0020] The anchor installation auxiliary device 10 in the first embodiment is attached to the above-mentioned anchor 300 and is used to press the core material 400 with the bolt 200 described below. The anchor installation auxiliary device 10 also functions as an adapter, so to speak, for attaching the bolt 200. The anchor installation auxiliary device 10 has a shaft portion 20 and a head portion 50, and has an external appearance substantially similar to the shape of a bolt.

[0021] The shank 20 of the anchor installation assist device 10 has on its exterior a male screw portion 30 which is a male screw that screws into the anchor female screw portion 370. Also, the interior of the shank 20 has a female screw portion 40 which is a female screw. That is, the shank 20 has the male screw portion 30 on its exterior and the female screw portion 40 on its interior, and is substantially cylindrical. The female screw portion 40 screws into the bolt male screw portion 222 of the bolt 200 described below.

[0022] Moreover, the head 50 is preferably hexagonal in plan view, and can be engaged with a wrench or spanner (not shown), enabling so-called screw turning. The female screw portion 40 is arranged so as to penetrate the inside of the shaft portion 20 and the head 50. In other words, the female screw portion 40 is arranged so as to communicate with the inside of the shaft portion 20 and the head 50. Therefore, the female screw portion 40 is configured to open so that the center of the female screw portion 40 is located at the center of the head 50 in plan view. Moreover, the head 50 is not limited to being hexagonal in plan view.

[0023] Next, the anchor installation device 100 will be described. The anchor installation device 100 has the above-mentioned anchor installation auxiliary device 10 and a bolt 200. The bolt 200 has a bolt shank 220 which serves as the shaft and a bolt head 250 which serves as the head. The length of the bolt shank 220 is preferably a length required to press the core material 400 built into the anchor 300, and is preferably 5 centimeters, for example.

[0024] Furthermore, bolt shank 220 has bolt male screw portion 222, which is a male screw, on its exterior. Bolt male screw portion 222 can be screwed into female screw portion 40. Furthermore, bolt head 250 preferably has a hexagonal shape in a plan view, and can be engaged with a wrench or spanner (not shown), enabling so-called screw turning.

[0025] Furthermore, the anchor installation device 100 may have a washer 280. The washer 280 has an opening 285 that opens for inserting the bolt shank 220. The outer shape of the washer 280 and the opening 285 are preferably circular in plan view.

[0026] The anchor installation device 100 can be constructed by screwing the bolt shank 220 of the bolt 200 configured as described above into the female screw portion 40 of the anchor installation auxiliary device 10. Note that it is also preferable to construct the anchor installation device 100 by screwing the bolt shank 220 into the female screw portion 40 of the anchor installation auxiliary device 10 via a washer 280.

[0027] Next, a method for attaching the anchor 300 to the base material 600 will be described. A hole forming process for drilling a hole H in the base material will be described. First, a hole H is drilled in the base material 600 with a drill P. Debris 601 accumulated in the hole H is sucked up with a suction device V. Next, the hole H is cleaned with a brush B, and the powdered base material 602 accumulated in the hole H is sucked up again. Thereafter, an adhesive K is applied to the hole H.

[0028] Next, a description will be given of a method for attaching an anchor using the anchor attachment device 100. The anchor 300 is placed in the hole H to which the adhesive K has been applied (anchor placing process). Since some time is required for the adhesive K to harden, it cannot be said that the anchor 300 is securely fixed to the base material 600 in this state.

[0029] Next, the anchor attachment device 100 is attached to the anchor 300. In other words, the anchor 300 is placed in the hole H, and the anchor attachment device 100 is attached to the anchor 300.

[0030] That is, the shaft portion 20 of the anchor attachment auxiliary device 10 of the anchor attachment device 100 is attached so as to screw into the female screw portion 370 of the anchor (anchor attachment device placement process). As described above, the shaft portion 20 has a male screw portion 30 on the outside, and the male screw portion 30 screws into the female screw portion 370 of the anchor. In this case, the bolt 200 is attached to the anchor attachment auxiliary device 10 together with the washer 280 in advance. The bolt 200 can also be attached to the anchor attachment auxiliary device 10 via the washer 280. The anchor 300 to which the anchor attachment device 100 has been attached in advance can also be placed in the hole H.

[0031] Next, the bolt head 250 of the bolt 200 is rotated by a wrench (not shown). This causes the bolt 200 to enter the female screw portion 40. The entered bolt 200 presses the core material 400 of the anchor 300. The pressed core material 400 gradually descends accordingly, widening the multiple slits 350, and the locking portion 340 arranged from the tip portion 320 to the middle portion 330 of the anchor body 310 is expanded in diameter. This causes the hole H of the base material 600 to engage with the locking portion 340 (anchor engagement process). This results in the anchor 300 being attached to the hole H. Thereafter, when the adhesive K solidifies, the anchor 300 is fixed to the hole H. Thereafter, the anchor installation device 100 is removed from the anchor 300.

[0032] In this manner, the bolt 200 is attached via the anchor attachment auxiliary device 10, and the bolt 200 presses the core material 400. This gradually expands the diameter of the engaging portion 340, thereby minimizing the impact on the base material 600 as much as possible, thereby preventing damage to the base material 600. Furthermore, the anchor attachment auxiliary device 10 configured as described above is relatively inexpensive, and the anchor attachment device 100 having the bolt 200 can likewise be constructed relatively inexpensively. [Explanation of symbols]

[0033] 10 Anchor installation aid 20 Shaft 30 Male thread 40 Female thread 50 heads 100 Anchor attachment device 200 Volts 220 Bolt shaft 222 Bolt male thread 250 Bolt Head 280 Washer 285 Opening 300 Anchor 310 Anchor body 320 Tip 330 Middle Section 340 Locking part 350 Slit 360 rear end 370 Anchor female thread 400 Core 600 Base material H hole

Claims

1. In order to fix an anchor having a cylindrical anchor body, a locking portion that expands in diameter at the tip of the anchor body, an anchor female screw portion that is a female screw inside the rear end of the anchor body, and a core material that expands the diameter of the locking portion, A screwdriver includes a shaft portion and a head portion connected to the shaft portion, and includes a male screw portion that is a male screw on the outside of the shaft portion and a female screw portion that is a female screw on the inside of the shaft portion, The female screw portion is disposed so as to penetrate the head and the shaft portion, and the male screw portion is capable of screwing into the female screw portion of the anchor.

2. In order to fix an anchor having a cylindrical anchor body, a locking portion that expands in diameter at the tip of the anchor body, an anchor female screw portion that is a female screw inside the rear end of the anchor body, and a core material that expands the diameter of the locking portion, A screwdriver includes a shaft portion and a head portion connected to the shaft portion, and includes a male screw portion that is a male screw on the outside of the shaft portion and a female screw portion that is a female screw on the inside of the shaft portion, the female screw portion is arranged to penetrate the head portion and the shaft portion, and is capable of screwing into a bolt, and is capable of pressing the core material when the bolt is arranged in the female screw portion; The male screw portion is an anchor installation auxiliary device that can be screwed into the female screw portion of the anchor.

3. In order to fix an anchor having a cylindrical anchor body, a locking portion that expands in diameter at the tip of the anchor body, an anchor female screw portion that is a female screw inside the rear end of the anchor body, and a core material that expands the diameter of the locking portion, A shaft portion and a head portion connected to the shaft portion, A male screw portion is provided on the outside of the shaft portion, and The shaft portion has a female screw portion therein, The female screw portion is disposed so as to penetrate the head portion and the shaft portion, The male screw portion is an anchor installation assistant device that can be screwed into the female screw portion of the anchor; A bolt having a bolt shank serving as a shank and a bolt head serving as a head, Placing the anchor in the hole; The male screw portion is screwed into the female screw portion of the anchor to connect the anchor and the anchor installation auxiliary device, and the bolt shank is screwed into the female screw portion to connect the anchor installation auxiliary device and the bolt, and by further rotating the bolt head, the bolt shank presses the core material, expanding the engaging portion, and the hole and the engaging portion engage with each other.

4. In order to fix an anchor having a cylindrical anchor body, a locking portion that expands in diameter at the tip of the anchor body, an anchor female screw portion that is a female screw inside the rear end of the anchor body, and a core material that expands the diameter of the locking portion, A shaft portion and a head portion connected to the shaft portion, A male screw portion is provided on the outside of the shaft portion, and The shaft portion has a female screw portion therein, The female screw portion is disposed so as to penetrate the head portion and the shaft portion, The male screw portion is an anchor installation assistant device that can be screwed into the female screw portion of the anchor; a bolt having a bolt shank serving as a shank and a bolt head serving as a head; A washer, Placing the anchor in the hole; The male screw portion is screwed into the female screw portion of the anchor to connect the anchor and the anchor installation auxiliary device, and the bolt shank is screwed into the female screw portion via the washer to connect the anchor installation auxiliary device and the bolt, and by further rotating the bolt head, the bolt shank presses the core material and the hole and the locking portion engage with each other.

5. an anchor placement step of placing an anchor in the hole; an anchor installation device placement step of attaching the anchor installation device according to claim 3 or 4 to the anchor placed in the anchor placement step; and an anchor engaging step of rotating the bolt in the anchor mounting device arranged in the anchor mounting device arrangement step, so that the bolt shank presses the core material and the hole engages with the locking portion.

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