Drilling equipment

Abstract

To verify a hooking margin of an end of a deck plate easily even after the deck plate is placed on a beam without performing a work for marking a placement position of the deck plate on the beam.SOLUTION: A drilling device (1) of a deck plate (D) placed on a beam (B) comprises a positioning part (2) abutted on an end of the deck plate (D) and determining a reference position of drilling, a drilling part (4) for drilling a hole penetrating from a front surface to a back surface of the deck plate (d), a support part (3) for supporting the drilling part (4) and a receiving part (5) provided at a position opposite to a tip of the drilling part (4) and inserted between the beam (B) and the deck plate (D).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a drilling device that mainly drills holes in deck plates. [Background technology]

[0002] When constructing floors and ceilings of concrete buildings, metal deck plates are installed on beams and concrete is poured onto them (see, for example, Patent Document 1). The deck plate is installed to span between the beams. At this time, the end of the deck plate needs a certain amount of overhang to prevent it from falling off the beam. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-61779 Summary of the Invention [Problem to be solved by the invention]

[0004] However, after the deck plate is placed on the beam, the edge of the beam is covered by the deck plate, making it difficult to confirm whether the overlap of the deck plate placed on the beam is at least the specified length. Therefore, it is necessary to mark the position of the end of the deck plate when it is placed on the beam in advance, but this work, and subsequent confirmation of the overlap if this work is not done, is extremely time-consuming.

[0005] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a drilling device that makes it possible to easily check the overlap allowance of the end of a deck plate even after the deck plate has been placed on the beam, without the need to mark the position on the beam where the deck plate will be placed. [Means for solving the problem]

[0006] In order to solve the above problems, an aspect of the present invention is a drilling device for a deck plate placed on a beam, characterized in that it comprises a positioning section that is brought into contact with the end of the deck plate to determine a reference position for drilling, a drilling section that drills holes that penetrate from the front surface to the back surface of the deck plate, a support section that supports the drilling section, and a receiving section that is provided in a position opposite the tip of the drilling section and is inserted between the beam and the deck plate.

[0007] It is also preferable that the perforation portion be provided at a position spaced apart from the contact position between the positioning portion and the end of the deck plate by an amount corresponding to the overlapping margin of the deck plate on the beam.

[0008] It is also preferable that the perforation portion be movably provided on the support portion so that the distance from the positioning portion is variable.

[0009] It is also preferable that the support portion be movably provided on the positioning portion so that the distance of the perforation portion from the positioning portion is variable.

[0010] It is also preferable that the support portion is provided with a scale indicating the distance of the perforation portion from the positioning portion.

[0011] It is also preferable that the boring portion is formed in a drill shape and is rotatably provided on the support portion. [Effects of the Invention]

[0012] According to an aspect of the present invention, the overlapping margin of the end of the deck plate can be easily confirmed even after the deck plate has been placed on the beam, without the need to mark the position on the beam where the deck plate will be placed. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. [Figure 2]FIG. [Figure 3] 10A and 10B are diagrams illustrating a method for drilling holes in a deck plate using a drilling device. [Figure 4] 10A and 10B are diagrams illustrating a method for drilling holes in a deck plate using a drilling device. [Figure 5] 10A and 10B are diagrams illustrating a method for drilling holes in a deck plate using a drilling device. [Figure 6] FIG. 10 is a perspective view showing another embodiment of the drilling device. [Figure 7] 7 is a diagram showing a state in which the position of the punching unit is changed in the punching device shown in FIG. 6. FIG. [Figure 8] FIG. 10 is a perspective view showing another embodiment of the drilling device. [Figure 9] 9 is a diagram showing a state in which the position of a support part is changed in the drilling device shown in FIG. 8. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Preferred embodiments of the present invention will be described with reference to the drawings. Note that the embodiments shown below are merely examples, and various other embodiments are possible within the scope of the present invention.

[0015] [First embodiment] As shown in FIGS. 1 to 5, the drilling device 1 is used to check the overlap of the deck plate D on the beam B by drilling holes in the deck plate D placed on the beam B. The drilling device 1 includes a positioning portion 2, a support portion 3, a drilling portion 4, and a receiving portion 5.

[0016] The positioning unit 2 abuts against the end (edge) of the deck plate D in the lengthwise direction (longitudinal direction) or widthwise direction (short direction) to determine the reference position for drilling. The positioning unit 2 is, for example, a column formed in the shape of a rectangular prism, and when drilling, it is set upright at a right angle to the upper surface (flange portion) of the beam B. When the positioning unit 2 is a rectangular prism, one surface 2a of its four sides abuts against the longitudinal end of the deck plate D. By abutting the positioning unit 2 against the longitudinal end of the deck plate D, movement of the positioning unit 2 toward the deck plate D is restricted, and the position of the drilling device 1 when drilling holes in the deck plate D can be determined.

[0017] The support part 3 supports the drilling part 4. The support part 3 is, for example, a rod formed in the shape of a rectangular pillar, one end of which is connected to the positioning part 2. The support part 3 is provided near one end (upper end) of the positioning part 2 in the longitudinal direction, so that its longitudinal direction is perpendicular to the longitudinal direction of the positioning part 2. In other words, the support part 3 is provided on the positioning part 2 so that when the drilling device 1 is positioned, the longitudinal direction of the support part 3 is parallel to the longitudinal direction of the deck plate D. The support part 3 has a hole 3a formed at a position spaced from the connecting position (side surface 2a) with the positioning part 2 by a distance corresponding to the overlapping allowance of the deck plate D to the beam B, and a drilled part 4 is inserted into this hole 3a. Here, the hole 3a is, for example, a screw hole, and the drilled part 4 is supported by the support part 3 by being screwed into this hole 3a.

[0018] The drilling unit 4 drills holes that penetrate from the front surface to the back surface of the deck plate D placed on the beam B. The drilling unit 4 is formed, for example, in the shape of a drill. A thread groove is formed on the outer circumferential surface of the drilling unit 4, and the drilling unit 4 is rotatably threaded into the hole 3a of the support unit 3. That is, the drilling unit 4 is supported by the support unit 3 at a position spaced apart from the connection position with the positioning unit 2 (in other words, the side surface 2a, which is the contact position between the positioning unit 2 and the end of the deck plate D) by a distance equivalent to the overlap of the deck plate D on the beam B; by rotating the drilling unit 4 around its axis, the drilling unit 4 moves back and forth along the axial direction. The drilling section 4 is supported by the support section 3 so that its axis is parallel to the longitudinal direction of the positioning section 2. In other words, the drilling section 4 is supported by the support section 3 so that it is perpendicular to the longitudinal direction of the support section 3. When drilling holes in the deck plate D, the drilling section 4 approaches the surface of the deck plate D from a direction perpendicular to the surface and drills the holes. One end of the drilling unit 4 is formed to be sharp, and comes into contact with the deck plate D to drill a hole in the deck plate D. The other end of the drilling unit 4 is formed so that a tool T such as an impact driver can be attached and detached. In other words, by attaching the tool T to the other end of the drilling unit 4 and driving it, the drilling unit 4 can rotate around its axis together with the driving of the tool T.

[0019] The receiving portion 5 is provided at a position opposite the tip of the drilling portion 4 and is inserted between the beam B and the deck plate D. The receiving portion 5 is, for example, a plate material formed in a rectangular shape in a plan view, and is formed so as to have a thin plate thickness so that it can be inserted between the beam B and the deck plate D. One end of the receiving portion 5 is connected to the positioning portion 2. The receiving portion 5 is provided at the other end (lower end) of the positioning portion 2 in the longitudinal direction so that its longitudinal direction is perpendicular to the longitudinal direction of the positioning portion 2. In other words, the receiving portion 5 is provided in the positioning portion 2 so that the longitudinal direction of the receiving portion 5 is parallel to the longitudinal direction of the deck plate D when the drilling device 1 is positioned. In other words, the receiving portion 5 is provided in the positioning portion 2 so that its longitudinal direction is parallel to the longitudinal direction of the support portion 3. The receiving portion 5 extends at least to a position opposite the tip of the drilling portion 4, and is formed to receive the tip of the drilling portion 4 that has drilled a hole through the deck plate D and prevent the tip of the drilling portion 4 from colliding with the beam B.

[0020] Next, a method for drilling holes in the deck plate D placed on the beam B will be described. As shown in Figure 3, the receiving part 5 of the drilling device 1 is inserted between the beam B and the deck plate D. At this time, the receiving part 5 is inserted between the beam B and the deck plate D so that the surface of the receiving part 5 faces the surface of the deck plate D and the longitudinal direction of the receiving part 5 is aligned with the longitudinal direction of the deck plate D. At this time, the drilling part 4 is moved upward in advance so that the tip does not come into contact with the deck plate D. As shown in Figure 4, when the receiving portion 5 is fully inserted between the beam B and the deck plate D, the end of the deck plate D abuts against the side surface 2a of the positioning portion 2, restricting the movement of the drilling device 1. This positions the drilling device 1, and the position where the hole will be drilled in the deck plate D by the drilling portion 4 is determined. In the state shown in Figure 4, a tool T such as an impact driver is attached to the other end of the drilling part 4 (the end opposite the tip), and the drilling part 4 is rotated around its axis. As shown in Figure 5, as the drilling part 4 rotates, it descends onto the surface of the deck plate D and penetrates through the deck plate D, creating a hole in the deck plate D. When the drilling part 4 comes into contact with the receiving part 5, further descent is restricted.

[0021] After drilling a hole in deck plate D with drilling device 1, the worker looks into the hole, and if the beam B is visible through the hole, or more precisely, if the edge of beam B passes through the center of the drilled hole, it can be determined that the overlap of deck plate D over beam B has been secured. On the other hand, if the beam B is not visible through the hole and the space below is visible, it can be determined that the overlap of deck plate D over beam B has not been secured.

[0022] With the drilling device 1 described above, even after the deck plate D has been placed on the beam B, holes can be easily drilled using the drilling device 1 at the positions where the deck plate D will overlap, making it easy to check through the holes whether the part that should be the overlap is placed on the beam B. This makes it easy to check the overlap of the deck plate D on the beam B even if the position of the end of the deck plate D when placed on the beam B has not been marked on the beam B in advance. Furthermore, since the drilling device 1 is equipped with a positioning unit 2, the position for drilling is determined by the drilling unit 4 simply by butting the side surface 2a of the positioning unit 2 against the end of the deck plate D. This makes it possible to drill holes at positions that provide the same overlap even on different deck plates D. Furthermore, because the drilling device 1 is equipped with the receiving portion 5, the drilling portion 4 does not come into contact with the beam B after penetrating the deck plate D and drilling a hole, and the beam B is not damaged during drilling. Furthermore, because the receiving portion 5 is formed in a thin plate shape, when inserted between the beam B and the deck plate D, drilling can be performed without causing the deck plate D to excessively lift.

[0023] [Second embodiment] Next, a second embodiment of the drilling device will be described. The drilling device 1A in the second embodiment differs from the drilling device 1 in the first embodiment in the configuration of the support unit 7. Therefore, the configuration of the support unit 7 will be described below, and the same components as those in the drilling device 1 will be assigned the same reference numerals and will not be described again.

[0024] As shown in FIG. 6, the support part 7 movably supports the drilling part 4 so that the distance of the drilling part 4 from the positioning part 2 is adjustable (variable). The support part 7 is, for example, a rod formed in the shape of a rectangular pillar, one end of which is connected to the positioning part 2. The support part 7 is provided near one end (upper end) of the positioning part 2 in the longitudinal direction so that its longitudinal direction is perpendicular to the longitudinal direction of the positioning part 2. In other words, the support part 7 is provided on the positioning part 2 so that the longitudinal direction of the support part 7 is parallel to the longitudinal direction of the deck plate D when the drilling device 1A is positioned.

[0025] The support part 7 has a groove 7a formed along its longitudinal direction, and the drilling part 4 is inserted into this groove 7a. The groove 7a is of a length that allows it to be moved to any position of the engagement allowance that can be designed so that holes with different engagement allowances can be drilled. The drilling part 4 is provided in the groove 7a via a plate that is screwed together so that it moves axially when rotated. This plate is provided so that it can move freely along the longitudinal direction of the groove 7a, and the position of the drilling part 4 can be determined at any position within the groove 7a.

[0026] Scales 7b are marked on the outer surface of the support portion 7 along the extension direction of the grooves 7a (the longitudinal direction of the support portion 7). The scales 7b are marked on the support portion 7 to indicate the distance from the connection position between the positioning portion 2 and the support portion 7 (in other words, the side surface 2a where the positioning portion 2 contacts the end of the deck plate D), and the numerical value indicated by the scales 7b corresponds to the overlap of the deck plate D on the beam B. In other words, the scales 7b indicate the distance from the positioning portion 2 of the drilling portion 4; as shown in FIG. 7, by moving the drilling portion 4 within the grooves 7a and aligning it with the scale corresponding to the overlap, a hole can be drilled in the deck plate D at the overlap position indicated by the scales 7b. For example, Figure 7(a) shows the position of the drilling section 4 when drilling a hole 60 mm from the end of the deck plate D when the overlap is 60 mm, and Figure 7(b) shows the position of the drilling section 4 when drilling a hole 25 mm from the end of the deck plate D when the overlap is 25 mm.

[0027] Additionally, an operation bar 4a is provided at the other end of the drilling unit 4 (the end opposite the tip) to apply an external force when rotating the drilling unit 4 around its axis. By gripping the operation bar 4a and rotating the drilling unit 4, the operator can move the drilling unit 4 toward the deck plate D along the axial direction and drill a hole in the deck plate D. Note that the operation bar 4a is not necessarily required, and as in the first embodiment, the drilling unit 4 may be rotated by attaching a tool such as an impact driver.

[0028] The drilling device 1A described above not only achieves the same effects as the drilling device 1 in the first embodiment, but also allows the position of the drilling section 4 on the support section 7 to be adjusted, making it possible to drill holes by adjusting the distance from the end of the deck plate D. This allows the drilling device 1A to be used to check a number of different overlap allowances, making it a highly versatile drilling device 1A.

[0029] [Third embodiment] Next, a third embodiment of the drilling device will be described. The difference between the drilling device 1B in the third embodiment and the drilling device 1 in the first embodiment is mainly in the configuration of the support part 8. Therefore, the configuration of the support part 8 will be described below, and the same components as those in the drilling device 1 will be assigned the same reference numerals and will not be described again.

[0030] As shown in FIG. 8, the support part 8 is movably provided on the positioning part 2 so that the distance of the drilling part 4 from the positioning part 2 is adjustable (variable). The support part 8 is, for example, a rod formed in the shape of a rectangular pillar, one end of which is movably inserted into the positioning part 2. The support part 8 is provided near one end (upper end) of the positioning part 2 in the longitudinal direction so that its longitudinal direction is perpendicular to the longitudinal direction of the positioning part 2. In other words, the support part 8 is provided on the positioning part 2 so that the longitudinal direction of the support part 8 is parallel to the longitudinal direction of the deck plate D when the drilling device 1B is positioned.

[0031] A hole 8a is formed in the support portion 8 near its other end (the side farther from the positioning portion 2), and the drilled portion 4 is inserted into this hole 8a. Here, the hole 8a is, for example, a screw hole, and the drilled portion 4 is supported by the support portion 8 by being screwed into this hole 8a. The support portion 8 has multiple holes 8b formed at predetermined intervals along its longitudinal direction, and the position of the support portion 8 can be fixed to the positioning portion 2 by inserting a pin 8c into one of the holes 8b. Specifically, an engagement margin scale 8d is marked above the holes 8b formed at regular intervals. By aligning the center of the hole 8a directly below the engagement margin scale 8d with the side surface 2a of the positioning portion 2, the drilled portion 4 is positioned at the position that corresponds to the engagement margin. Note that the engagement margin scale 8d is not marked above all of the holes 8a, but the engagement margin corresponding to each hole 8a can be easily determined from the number of holes 8a and the indication of the engagement margin scale 8d. The holes 8a are formed in a number that corresponds to the number of positions that can be moved to accommodate the possible engagement margins in design so that holes with different engagement margins can be drilled. Hole 8a is formed so as to penetrate from the upper surface to the lower surface of support portion 8, and its depth direction is formed so as to follow the longitudinal direction of positioning portion 2. Hole 8b is formed in one side surface of support portion 8, and its depth direction is formed so as to follow the direction perpendicular to the longitudinal direction of positioning portion 2 (the direction of the flange surface of beam B, the direction of the surface of receiving portion 5).

[0032] For example, Figure 9(a) shows the position of the support part 8 when drilling a hole 80 mm from the end of the deck plate D when the overlap is 80 mm, and Figure 9(b) shows the position of the support part 8 when drilling a hole 50 mm from the end of the deck plate D when the overlap is 50 mm.

[0033] The drilling device 1B as described above not only achieves the same effects as the drilling device 1 in the first embodiment, but also allows the position of the support part 8 relative to the positioning part 2 to be adjusted, making it possible to drill holes by adjusting the distance from the end of the deck plate D. This allows the drilling device 1B to be used to check a number of different overlap allowances, making it a highly versatile drilling device 1B.

[0034] <Other> Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, but includes all aspects included within the concept of the present invention and the scope of the claims. For example, the operation bar 4a of the drilling device 1A may be provided on the drilling section 4 of the drilling devices 1 and 1B. Furthermore, in the above explanation, a method of drilling holes in the deck plate D after the deck plate D is placed on the beam B has been described, but holes may also be drilled in the deck plate D in advance using drilling devices 1, 1A, 1B in a factory or the like. In this case, there is no need to mark the beam B in advance to indicate the position of the end of the deck plate D when placed on the beam B, which improves the efficiency of the installation work of the deck plate D on the beam B. In addition to checking the overlap, the holes drilled in the deck plate D may also be used as holes for screws or nails to secure the deck plate D to the beam B. In this case, holes may be drilled in the beam B using drilling devices 1, 1A, and 1B as needed. Furthermore, the drilling devices 1, 1A, and 1B may be used to drill holes in objects other than the deck plate D. [Explanation of symbols]

[0035] 1, 1A, 1B Drilling device 2 Positioning part 3 Support part 3a hole 4 Perforation 5 Receptacle 7 Support part 7a groove 7b Scale 8 Support part 8a hole 8b hole 8c pin 8d scale B beam D Deck Plate

Claims

1. A drilling device for a deck plate placed on a beam, a positioning portion that is abutted against an end portion of the deck plate and determines a reference position for drilling; A drilling portion that drills a hole penetrating from the front surface to the back surface of the deck plate; a support portion that supports the perforation portion; a receiving portion that is provided so as to extend to a position opposite to the tip of the drilling portion, receives the tip of the drilling portion that has drilled a hole through the deck plate, and is inserted between the beam and the deck plate placed on the beam; A drilling device comprising:

2. The drilling device according to claim 1, wherein the drilling portion is provided at a position separated in the longitudinal direction of the support portion from a contact position between the positioning portion and the end portion of the deck plate.

3. 2. The drilling device according to claim 1, wherein the drilling section is movably provided on the support section so that the distance from the positioning section is variable.

4. 2. The drilling device according to claim 1, wherein the support portion is movably provided on the positioning portion so that the distance of the drilling portion from the positioning portion is variable.

5. 5. The drilling device according to claim 3, wherein the support portion is provided with a scale indicating the distance of the drilling portion from the positioning portion.

6. 6. The drilling device according to claim 1, wherein the drilling portion is formed in a drill shape and is rotatably mounted on the support portion.

Images