JPS62805Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drill positioning device for the purpose of accurately drilling a mounting hole in a predetermined position for attaching equipment to a surface of concrete or the like.

For example, when laying lining material or piping along the walls or ceiling of a building with a concrete structure, it is necessary to install these directly or using auxiliary members such as columns, girders, and saddles on the concrete surface. must be fixed. When we adopted a method of attaching these devices by drilling holes in the poured concrete surface and inserting expansion anchors into these holes to secure the devices, we were able to accurately drill a large number of mounting holes. It is necessary to drill in place. For this reason, the center position of the mounting hole is marked on the concrete surface to ensure accurate drilling, but it is difficult to place the drill perpendicular to the wall or ceiling and drill the hole accurately. In many cases, it is not possible to drill a mounting hole perpendicular to the concrete surface due to the location.

The present invention provides a device that allows accurate positioning along marked lines or other indicated lines, and at the same time allows drilling of mounting holes perpendicular to the concrete surface.
A vacuum suction cup for fixing to the concrete surface, at least three leg members for positioning along the indicated line, support holes removably installed through the leg members, and auxiliary support holes between them. and a plurality of guide tubes for drilling by applying a drill perpendicularly to the concrete surface, the length of the leg member protruding from the base is adjustable, and the tip is pointed.

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

Figures 1 and 2 show a first embodiment, in which a mounting base 4 with a vacuum suction cup 3 made of rubber or synthetic resin fixed is fitted into a hole 2 at the center of a square plate-shaped base 1. The holding plate 5 is placed over the top surface of the holding plate 5, and the holding plate 5 and the mounting base 4 are connected with a screw rod 6 to fix the vacuum suction cup 3 protruding from the bottom surface of the base 1. Four leg members 7 and four guide tubes 8 are provided on two diagonal lines of 1. The guide tube 8 is screwed into support holes 12 consisting of screw holes in the four corners of the base 1, and the guide tube 8 stands upright on the center side of the support holes 12 of the base 1 and has set screws. It is fixed to the base 1 at 13. An auxiliary support hole 15 is provided at the midpoint of each side of the base 1, and measuring devices 23, 24, such as a bubble level, etc., are provided at the outer edge to measure perpendicularity and horizontality with respect to the construction surface. It is being

The device of this embodiment uses an auxiliary guide tube 17 as shown in FIG.
A predetermined plurality of pieces with different inner diameters and lengths are prepared according to the diameter of the mounting hole H and the drilling depth of the mounting hole H, and one of them is fitted into the guide tube 8 and the intermediate flange 1 is inserted.
7a is engaged with the upper edge of the guide tube 8. First, draw a scribe line L with ink on a predetermined construction surface F, place the base 1 at the intersection of the vertical and horizontal lines, and overlap the sharp end 9 of the leg member 7 at the corner with the scribe line L. (Fig. 4 A), hold down the nut 1 so that it does not move by hand, and fix it.
The vacuum suction cup 3 is kept in contact with the construction surface F by moving the vacuum suction cup 3 toward the tip side and shortening the protruding length of the leg member 7 from the base 1. In this state, the mounting base 4,
The ventilation hole 16 formed through the holding plate 5 is connected to a vacuum pump through a hose (not shown), and the vacuum suction cup 3 is flattened as shown in FIG. 3 by discharging the air inside it, and the construction surface F is Closely contact. Next, insert the drill D into the auxiliary guide tube 17 and
A hole is drilled until the tip surface of the auxiliary guide tube 17 is cut off at the upper edge of the auxiliary guide tube 17, and then the auxiliary guide tube 17 is attached to another guide tube 8 and the hole is drilled.When the required mounting hole H is drilled. Either the hose is removed or the vacuum pump is reversed to send air into the vacuum suction cup 3 to cause it to expand and recover, move to the next intersection of the scored lines L, and repeat the drilling operation. As a result, a mounting hole H is formed on the scribed line L centering on the intersection point, as shown in FIG. 4A.

When the first mounting hole H is drilled, the holding rod 18 is tightly inserted into the mounting hole H through the guide tube 8 as shown in FIG. Fix it so that it does not come loose.
In addition, in this embodiment, a predetermined plurality of guide tubes 8 having different inner diameters and heights are prepared, and one selected according to the diameter of the drill D used and the drilling depth of the mounting hole H is screwed. The drill D is fixed to the base 1 at 13, and the drill D is fitted almost tightly into the guide tube 8 or the auxiliary guide tube 17 to perform drilling.

FIG. 4B shows the case where the leg member 7 is attached to the auxiliary support hole 15, and the base 1 is placed at the intersection point of the vertical and horizontal lines of the score line L, and the leg member 7 is attached to the score line L. By overlapping, a mounting hole H is formed between the scored lines L. According to this method of use, wall boards or ceiling boards can be laid along the scored lines and fixed at the four corners.

FIG. 5 shows a modification of the leg member 7 and the guide tube 8. The leg member 7 is constituted by a threaded round bar 21 having a sharp end 19 at the tip and a head 20 made of a nut at the base end.
A spring 22 is applied in a direction that allows the support hole 12 to be fitted almost tightly into the support hole 12 and protrudes downward. Further, the guide tube 8 is integrally formed with the base 1 and protrudes from both upper and lower surfaces thereof, into which the auxiliary guide tube 17 is fitted.

6, 7, and 8 show different embodiments of the present invention, each of which has a vacuum suction cup 3 in the center of the base 1. In FIG. 6, a square base 1 similar to the first embodiment has leg members 7 at the corners, auxiliary support holes 15 are provided between them, and four guide tubes 8 are attached to each side. It is placed in the middle of the FIG. 7 shows that three leg members 7 are provided at equal intervals in the circumferential direction on the peripheral edge of a circular base 1, and an auxiliary support hole 15 is provided between them, and the base of each auxiliary support hole 15 is provided. A guide tube 8 is arranged on the center side. FIG. 8 shows that three leg members 7 are provided at equal intervals in the circumferential direction on the peripheral edge of a circular base 1, and an auxiliary support hole 15 is provided between them, and each leg member 7 and the auxiliary support hole are provided. A guide tube 8 is arranged and provided on the center side of the base with respect to the guide tube 15.

In addition, when it is used only for a drill D of a specific size and is used exclusively for forming a mounting hole H of a certain size, the guide tube 8 may be provided integrally with the base 1, and the auxiliary guide tube 17 is unnecessary. It is. Also, in order to prevent vibration during construction, instead of inserting the holding rod 18 prepared in advance into the first mounting hole H and the guide tube 8, an appropriate member at the site, such as an expansion anchor, can be temporarily inserted and fixed. You can.

As described above, in the present invention, a vacuum suction cup is arranged in the center of the base, at least three leg members are provided on the outer periphery, and a plurality of guide tubes are provided. By overlapping the end with a score line or other indication line drawn on the construction surface such as concrete, the guide tube can not only be accurately positioned at the required mounting hole formation location, but also
Since it is configured to be fixed to the construction surface using a vacuum suction cup, there is no need to process the construction surface or install special equipment to fix the base, and it can be used on wide walls or ceilings. The vacuum suction cup can be suctioned and fixed to predetermined locations in order to easily and efficiently drill a large number of mounting holes.The protruding length of the leg member is adjustable, so even if there are irregularities, the vacuum suction cup can be easily and efficiently drilled. It firmly adheres to the construction surface, and therefore can be stably fixed using a vacuum on vertical surfaces such as walls and downward horizontal surfaces such as ceilings without any possibility of shifting or falling. Not only can a plurality of holes be drilled with one positioning, but also the drilling work can be performed by moving arbitrarily along the indicated line and fixing at an arbitrary position. In addition, since the guide tube is provided on the line passing through the center of the base and the leg members or in the middle, a drill can be inserted into the appropriate parts or all of them to perform the drilling work, and the base can be assembled into one piece. It is possible to drill a plurality of mounting holes by fixing it in place, and by applying the drill perpendicularly to the construction surface using the guide tube, it is possible to drill perpendicular mounting holes as it is. Furthermore, according to the present invention, since the base is provided with an auxiliary support hole for the leg member, the leg member that is attached through the support hole can be removed and moved to the auxiliary support hole to change its mounting position. This allows the position of the guide tube with respect to the indicator line to be varied in a variety of ways, and therefore has various effects such as the ability to form mounting holes suitable for mounting various instruments on one base.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line X-X in Fig. 1, Fig. 3 is a sectional view showing the state of use, and Fig. 4 A and B are construction. FIG. 5 is a partial vertical sectional view showing different embodiments, and FIGS. 6, 7, and 8 are plan views showing further different embodiments. 1... Base, 3... Vacuum suction cup, 7... Leg member, 8... Guide cylinder, 15... Auxiliary support hole.

Claims (1)

[Scope of utility model registration request] The base 1, the vacuum suction cup 3 disposed in the center thereof and fixing the base 1 to the construction surface, and the vacuum suction cup 3 that can be removed by penetrating at least three support holes 12 provided on the outer periphery of the base 1. At least three leg members 7 for positioning each having sharp ends 9 and 19 are attached so that their protruding length from the base 1 can be adjusted; A drill characterized in that it is provided with an auxiliary support hole 15 for the leg member 7 provided in between, and a plurality of guide tubes 8 provided in the base 1 for inserting the drill at right angles to the construction surface. Positioning device.