JP2019049153A - Drilling device for rooftop slab hanging hole - Google Patents

Abstract

To provide a drilling device for a rooftop slab hanging hole capable of suppressing health problems of workers and deterioration of a working environment.SOLUTION: A drilling device for a rooftop slab hanging hole for drilling a rooftop slab to form a hanging hole for transfer comprises: a frame which is mounted on a floor surface of a rooftop slab; at least one core drill unit which is a dry core drill unit fixed to the frame and cuts the rooftop slab in an annular shape along the thickness direction of the rooftop slab so as to form a through hole; and a suction device which collects dust in the vicinity of a cutting point of the core drill unit and can prevent core debris from falling off from the inside of the core drill unit when the through hole is formed by a suction force.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a roof slab suspension hole drilling device for drilling a roof roof slab to form a suspension hole for transfer.

  Conventionally, as a method of disassembling a floor plate member of a building, a rotating blade of a blade cutter device is cut to cut the floor plate member, and a plurality of cut and separated floor plate members and a non-separating floor plate member are separated. After the floor plate holding / hanging member is placed and the floor plate holding / hanging member is connected to the cut and separated floor plate member, the suspension formed on the floor plate holding / hanging member There is a method of connecting a rope for lifting and transferring to the hole, suspending the cut and separated floor plate member together with the floor plate holding / hanging member, and transporting and removing it (see Patent Document 1).

  In Patent Document 1, noise and vibration are generated by cutting a floor plate member by cutting a rotating blade of a blade cutter device in order to improve efficiency of disassembling work of a floor plate member of a building. Of the floor deck members by lifting the floor slab members using a crane and easily removing them by connecting the ropes for lifting and transporting to the suspension holes formed in the floor slab holding / hanging members. What can be done is disclosed.

  Further, according to Patent Document 2, before drilling a concrete floor or the like to form a cylindrical through hole, the bottom surface of the fixing tool is butted to be bonded to a planned drilling position of the concrete floor, It is disclosed that the core is prevented from falling by locking the locking hook portion of the hook provided inside the core bit to the locked portion of the fixing member.

JP, 2014-20193, A JP, 2014-73624, A

  However, as described in Patent Document 1, large noises and vibrations are generated during the dismantling work of the building, and dusts are scattered, so that the environmental impact is large in the vicinity and the work site. For this reason, the adverse effect that the environment in the work site has on the health of the workers working in the work site is not small.

  In particular, when contaminants such as radioactive substances and chemical substances are present inside a building as described in Patent Document 2, when disassembling the roof slab, the environment in the work site or The health of the workers may be adversely affected.

  In view of the above-mentioned circumstances, at least one embodiment of the present invention aims to provide a rooftop slab suspension hole drilling device capable of suppressing health damage of workers and deterioration of work environment.

(1) A roof slab suspension hole drilling device according to at least one embodiment of the present invention,
A roof slab suspension hole drilling device for drilling a roof roof slab to form a suspension hole for transfer, comprising:
The rooftop slab suspension hole drilling device is
A frame mounted on the floor surface of the roof roof slab;
At least one core drill unit, which is a dry core drill unit fixed to the frame, and cuts the roof roof slab in an annular shape along the thickness direction of the roof roof slab;
A suction device for collecting dust in the vicinity of a cutting point of the core drill unit, comprising: a suction device capable of preventing the core shell from falling off from the inside of the core drill unit when the through hole is formed by a suction force. .

  According to the configuration of the above (1), the rooftop slab suspension hole drilling device is a frame mounted on the floor surface of the rooftop slab, and a dry core drill unit fixed to the frame, It has at least one core drill unit which cuts in an annular shape to form a through hole (a suspension hole), and a suction device. And since a suction device performs dust collection near the cutting part of a core drill unit, a roof slab suspension hole drilling device can control that scattering of dust generated at the time of cutting a roof slab with a core drill unit is carried out. In addition, the roof slab suspension hole drilling device can prevent the core shell from falling below the roof roof slab through the through hole because the suction device can prevent the core shell from falling off from the inside of the core drill unit by the suction force. And prevent the core shell from directly affecting the outside of the core drill unit.

  Therefore, according to the above configuration, it is possible to suppress the health damage of the worker and the deterioration of the working environment.

(2) In some embodiments, in the configuration of (1) above,
The core drill unit is
A cylindrical core bit,
A cutting blade provided at one axial end of the core bit;
And a drill unit rotatably supporting the core bit and rotatably driving the core bit, wherein the core bit can be raised and lowered along the thickness direction of the roof slab.

  According to the structure of said (2), a core drill unit is equipped with the cylindrical core bit, the cutting blade provided in the end part of the axial direction of a core bit, and a drill unit. The drill unit rotatably supports the core bit and rotationally drives the core bit. Furthermore, the drill unit can move the core bit up and down along the thickness direction of the roof slab. Such a drill unit can form a suspended hole for transfer by the cutting edge being rotationally driven by the drill unit together with the core bit to cut annularly along the thickness direction of the roof roof slab .

(3) In some embodiments, in the configuration of (1) or (2) above,
The core drill unit is configured to be linearly movable along a direction horizontal to the frame.
According to the configuration of the above (3), the core drill unit is configured to be linearly movable along a direction horizontal to the frame, so the core drill unit is straight along the direction horizontal to the frame At the place where it moved to, it is possible to cut the roof slab by the core drill unit. For this reason, for example, when the cutting by the core drill unit is difficult due to, for example, the roof slab to be cut by the core drill unit or the members provided below the roof roof being rigid, the cutting point can be changed.

(4) In some embodiments, in the above configurations (1) to (3),
The core drill unit includes a cylindrical core bit,
The rooftop slab suspension hole drilling apparatus further includes a core glazing prevention device having a core glazing stand configured to be movable to block at least a part of the opening of the core bit.
According to the configuration of the above (4), the roof slab suspension hole drilling device includes the core glass falloff preventing device having the core glass support base configured to be movable so as to close at least a part of the opening of the core bit. When the suction force by the suction device does not work, the core shell is supported by the core shell support, so that the core shell can be prevented from falling through the through hole and below the roof roof slab.

(5) In some embodiments, in the above configurations (1) to (4),
The rooftop slab suspension hole drilling device comprises a plurality of the core drill units,
The suction device is
A suction force generator for generating the suction force;
And a switching valve device for selectively supplying the suction force generated by the suction force generation device to one of the plurality of core drill units.
According to the configuration of (5), the suction device selectively supplies the suction force generated by the suction force generator and the suction force generated by the suction force generator to one of the plurality of core drill units. Since the switching valve device for the second embodiment includes the suction force generated by the suction force generation device, the switching valve device supplies only one core drill unit. For this reason, the suction force generation device only needs to generate a suction force enough to prevent one core drill unit from falling off the inside of the core shell, so a suction force generation device or a roof slab as the required suction force increases. It is possible to prevent upsizing and weight increase of the suspension hole drilling device.

(6) In some embodiments, in the above configurations (1) to (5),
The suction device is
A cyclone type first dust collector disposed inside the frame;
A filter type second dust collector disposed inside the frame and disposed downstream of the first dust collector;
And an air filter type third dust collector disposed inside the frame and disposed downstream of the second dust collector.

  According to the configuration of the above (6), the suction device carries out dust collection in three steps in the order of the cyclone type first dust collector, the filter type second dust collector, and the air filter type third dust collector. Therefore, the amount of dust collected in the air exhausted from the suction device to the outside can be reduced.

(7) In some embodiments, in the configuration of (6) above,
The first dust collection apparatus has a detachable first dust collection container,
The second dust collection apparatus has a detachable second dust collection container.

  According to the configuration of the above (7), the suction device collects dust in three steps in order of the first dust collector, the second dust collector, and the third dust collector. Further, the first dust collection apparatus and the second dust collection apparatus, in which dusts are easily accumulated, can accumulate dusts in the removable first dust collection container and the second dust collection container. Then, when a predetermined amount of dust accumulates in the first dust collection container and the second dust collection container, the operator may replace the dust collection container with a new one, so dust can be collected. Can be prevented from scattering from the first dust collection container and the second dust collection container to the outside.

(8) In some embodiments, in the above configurations (1) to (7),
The core drill unit and the suction device are configured to be remotely operable.
The rooftop slab suspension hole drilling device is a wireless device disposed inside the frame, and further includes a wireless device for remotely operating the core drill unit and the suction device.
According to the configuration of the above (8), since the rooftop slab suspension hole drilling device is configured to be able to remotely operate the core drill unit and the suction device by the wireless device disposed inside the frame, the worker can use the rooftop slab The roof roof slab can be cut by remote control from a distance from the hanging hole drilling device. For this reason, it is possible to suppress the health damage of the workers and the deterioration of the working environment.

(9) In some embodiments, in the configuration of (8) above,
The rooftop slab suspension hole drilling device further includes a drilling status confirmation device for checking a drilling status of the rooftop slab by the core drill unit;
The perforation status confirmation device is
An imaging device for imaging the vicinity of the cutting portion of the core drill unit;
A sound collection device for collecting cutting noise of the core drill unit;

  According to the structure of said (9), the rooftop slab suspension hole drilling apparatus is provided with the drilling condition confirmation apparatus for confirming the drilling condition of the rooftop slab by a core drill unit. The drilling condition confirmation device includes an imaging device that captures an image of the vicinity of the cutting point of the core drill unit, and a sound collection device that collects the cutting noise of the core drill unit. For this reason, since the operator can confirm the drilling condition of the roof slab by the core drill unit by the drilling condition confirmation device from a place apart from the roof slab suspension hole drilling device, the roof slab is efficiently cut by remote control. be able to.

(10) In some embodiments, in the configuration of (8) or (9) above,
The roof slab hanging hole drilling device is a driving force generating device disposed inside the frame, and further includes a driving force generating device that generates a driving force of the core drill unit and the suction device.
According to the configuration of the above (10), since the roof slab suspension hole drilling device includes the driving force generating device for generating the driving force of the core drill unit and the suction device inside the frame body, the rooftop slab suspension hole drilling device For example, the core drill unit and the suction device can be driven at the transfer destination by the lifting machine. According to the above configuration, the worker can drive the core drill unit and the suction device even when the rooftop slab suspension hole drilling device is disposed at a remote place away from the worker.

(11) In some embodiments, in the configurations of (1) to (10) above,
The frame is
A guide portion provided above the frame to position the beading device when the frame and the beading device are connected;
And at least one connecting portion provided above the frame and having an opening used for connection with the pooling device.
According to the configuration of the above (11), the frame includes the guide portion for positioning the beading device at the time of coupling with the beading device, and the connecting portion having an opening used for coupling with the beading device. Positioning and connection between the slab hanging hole drilling device and the lashing device can be easily performed.

  According to at least one embodiment of the present invention, a rooftop slab suspension hole drilling device capable of suppressing health damage of workers and deterioration of work environment is provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic front view which shows roughly the front view of the roof-top slab hanging hole perforation | piercing apparatus concerning one Embodiment of this invention. It is a schematic top view which shows roughly the top view of the rooftop slab suspension hole drilling device shown in FIG. It is a schematic right side view which shows roughly the right side view of the rooftop slab suspension hole drilling device shown in FIG. It is a flowchart which shows an example of the dismantling method of a roof roof slab using the roof roof slab suspension hole drilling device shown in FIG. FIG. 2 is a schematic partial enlarged view showing a portion A shown in FIG. 1 in an enlarged manner. It is an explanatory view for explaining suction by a core drill unit and suction device in one embodiment of the present invention. It is a system configuration figure of a suction device in one embodiment of the present invention, and is a figure for explaining suction of core dust and removal of dust contained in air sucked from a suction port. It is a figure for demonstrating the operation | movement of the core-glass drop-off prevention apparatus in one Embodiment of this invention, Comprising: It is a figure which shows the state which the core-glass support stand moved backward. It is a figure for demonstrating the operation | movement of the core-glass drop-off prevention apparatus in one Embodiment of this invention, Comprising: It is a figure which shows the state which the core-glass support stand advanced. It is a schematic diagram showing roughly a block diagram of a control system of a rooftop slab suspension hole drilling device concerning one embodiment of the present invention. It is an explanatory view for explaining a perforation situation check device in a rooftop slab suspension hole perforation device concerning one embodiment of the present invention. It is a schematic perspective view showing roughly a perspective view of a rigging device connected with a rooftop slab suspension hole drilling device concerning one embodiment of the present invention. It is an explanatory view for explaining connection with a roof slab suspension hole drilling device and a pooling device concerning one embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, but are merely illustrative. Absent.
For example, a representation representing a relative or absolute arrangement such as “in a direction”, “along a direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” is strictly Not only does it represent such an arrangement, but also represents a state of relative displacement with an angle or distance that allows the same function to be obtained.
For example, expressions that indicate that things such as "identical", "equal" and "homogeneous" are equal states not only represent strictly equal states, but also have tolerances or differences with which the same function can be obtained. It also represents the existing state.
For example, expressions representing shapes such as quadrilateral shapes and cylindrical shapes not only represent shapes such as rectangular shapes and cylindrical shapes in a geometrically strict sense, but also uneven portions and chamfers within the range where the same effect can be obtained. The shape including a part etc. shall also be expressed.
On the other hand, the expressions "comprising", "having", "having", "including" or "having" one component are not exclusive expressions excluding the presence of other components.

  FIG. 1 is a schematic front view schematically showing a front view of a roof slab hanging hole drilling device according to an embodiment of the present invention. FIG. 2 is a schematic top view schematically showing a top view of the rooftop slab hanging hole drilling device shown in FIG. FIG. 3 is a schematic right side view schematically showing a right side view of the rooftop slab hanging hole drilling device shown in FIG. FIG. 4 is a flow chart showing an example of a method of disassembling a rooftop slab using the rooftop slab suspension hole drilling device shown in FIG. First, a rooftop slab dismantling method 19 using the rooftop slab suspension hole drilling device 1 will be described using FIG. 4.

  The roof roof slab dismantling method 19 includes a roof roof slab suspension hole drilling step S10, a roof roof slab cutting step S20, an anchor plate installation step S30, a fixing pin fixing step S40, and a margin cut confirmation step S50 as shown in FIG. , Slab block transfer step S60. The rooftop slab hanging hole drilling step S10 is a step of drilling the rooftop slab 20 to form a lifting hole for transfer. The rooftop slab cutting step S20 is a step of vertically and horizontally cutting the rooftop slab 20 to form a substantially rectangular plate-like slab block. Anchor plate installation process S30 is a process of installing an anchor plate on the slab block.

  And fixing pin fixing process S40 is a process of fixing this anchor plate to a slab block by the fixing pin which penetrates a suspension hole. The edge confirmation step S50 is a step of raising the slab block above the roof slab and then lowering it to confirm the edge cut of the slab block. The slab block transfer step S60 is a step of lifting the slab block together with the anchor plate and the slab block lifting device by a lifting machine and transferring it to another destination after connecting the slab block lifting device to the anchor plate.

  The roof-top slab suspension hole drilling device 1 is used for drilling the roof-top slab 20 and forming a suspension hole (transfer hole 20b) for transfer in the roof-top slab suspension hole drilling step S10 of the roof-top slab dismantling method 19. is there. Hereinafter, each structure with which the rooftop slab suspension hole drilling device 1 is provided will be described.

  In the embodiment shown in FIGS. 1 to 13, the roof slab suspension hole drilling device 1 comprises a frame 2, at least one dry core drill unit 3 and a suction device 4 as shown in FIGS. And.

  The frame 2 is placed on the floor surface 20 a of the roof roof slab 20 as shown in FIGS. And a plurality of support legs 22 that are fixed. In the frame main body 21, a plurality of vertical frame members 21a having a longitudinal direction along the vertical direction and a plurality of horizontal frame members 21b having a longitudinal direction along the horizontal direction are combined and connected and fixed to each other. Thus, the upper end side of both end portions in the longitudinal direction is formed in a substantially rectangular parallelepiped shape having a longitudinal direction along the left and right direction in FIG. More specifically, in the frame main body 21, as shown in FIGS. 1 and 2, the central frame portion 21c in the longitudinal direction is formed in a substantially rectangular parallelepiped shape, and the end frame portions 21d and 21e on both sides in the longitudinal direction, respectively. Is formed in a substantially rectangular parallelepiped shape smaller than the central frame portion 21c, and these are integrally provided. Here, for the vertical frame member 21a and the horizontal frame member 21b, for example, a square tubular steel pipe, or a shaped steel such as an I-shaped steel or an L-shaped steel is used. The support legs 22 are placed on the floor 20 a of the roof roof slab 20 as shown in FIGS. 1 and 3 and support the frame main body 21 from the lower side. In some embodiments, the support legs 22 are provided to be variable in their length dimension. In this case, even if the floor surface 20a is uneven, the frame main body 21 can be supported so as to be horizontal.

  The core drill unit 3 forms the through hole 20 b by cutting the roof roof slab 20 in a ring shape along the thickness direction of the roof roof slab 20 as shown in FIG. 5. The core drill unit 3 is disposed inside the end frame portions 21 d and 21 e of the frame main body 21 as shown in FIGS. 1 to 3 and 5 and fixed to the frame main body 21. Here, FIG. 5 is a schematic partial enlarged view showing a portion A shown in FIG. 1 in an enlarged manner.

  The core drill unit 3 includes a core bit 31, a cutting blade 32 provided at one axial end of the core bit 31, and a drill mounted at the other axial end of the core bit 31, as shown in FIGS. And a unit 33. The core bit 31 includes a cylindrical body portion 31a having an axis Lc along the vertical direction in FIG. 6, and a cylindrical connecting portion 31b projecting upward from the upper end portion of the body portion 31a. The connecting portion 31b has an axis substantially aligned with the axis Lc of the body 31a, and has an outer dimension smaller than the outer diameter of the body 31a. In the connecting portion 31b, an inner side surface 31d communicating with the inner peripheral surface 31c of the body portion 31a is a suction port of the suction device 4 described later.

  The cutting blades 32 are provided at the lower end of the body portion 31a as shown in FIGS. 5 and 6, and project downward from the annular end face of the lower end, spaced from each other on the same circumference. A plurality of arc-shaped convex portions 32 a are provided. Moreover, the cutting blade 32 forms the groove part 32b between adjacent convex parts 32a. The convex portion 32a of the cutting blade 32 is provided such that the outer side surface 32c protrudes outward from the outer peripheral surface 31e of the body portion 31a, and the inner side surface 32d protrudes inward from the inner peripheral surface 31c of the body portion 31a. ing.

  The drill unit 33 rotatably supports the core bit 31 and rotationally drives the core bit 31. More specifically, as shown in FIG. 5, the drill unit 33 is a drive for rotationally driving the core bit support portion 33a on which the connection portion 31b of the core bit 31 is detachably provided substantially concentrically and the core bit support portion 33a. And a source built-in portion 33b. The drive source housing 33b is disposed in the drive source housing 33b, a bearing (not shown) rotatably supporting the core bit support 33a, and a rotation (not shown) for rotationally driving the core bit support 33a. A drive power source and a drive power transmission member (not shown) disposed in the drive power source built-in portion 33b and transmitting the drive power of the above-described rotational drive power source to the core bit support portion 33a are provided. Here, the drive source for rotational drive includes a motor. Further, the driving force transmitting member includes a pulley, a belt, a gear, and the like.

  The drill unit 33 is configured to be able to move the core bit 31 up and down along the thickness direction of the roof slab 20. More specifically, the drill unit 33 has a longitudinal direction along the vertical direction, as shown in FIG. 5, and a support 33c on which the rack 33f is laid along the longitudinal direction; It further has a slide part 33d fixed to the part 33b and having a pinion (not shown) engaged with the rack 33f, and a slide drive source 33e for rotationally driving the pinion. Here, the slide drive source 33e includes an actuator such as a motor or air pressure or oil pressure. The support 33 c of the drill unit 33 is fixed to the frame main body 21.

  In some embodiments, the drill unit 33 is configured to be linearly movable along a horizontal direction with respect to the frame 2. More specifically, the roof-top slab hanging hole drilling device 1 further includes a slide table device 11 as shown in FIGS. The slide table device 11 is provided opposite to the long guide rail 11a having a longitudinal direction along the horizontal direction and the guide rail 11a as shown in FIG. And a slide table 11b configured to be displaceable relative to the longitudinal direction of the rail 11a. In the slide table apparatus 11, as shown in FIG. 5, a guide rail 11a is fixed to the frame main body 21, and a support 33c of the drill unit 33 is fixed to the slide table 11b.

  The suction device 4 collects dust in the vicinity of the cutting point of the core drill unit 3. Further, the suction device 4 is configured to be capable of preventing the core shell 10 from falling off from the inside of the core drill unit 3 which is generated when forming the through holes 20 b by a suction force. Also, some of the devices that make up the suction device 4 are stored in the storage container 12 as shown in FIGS. Here, FIG. 6 is an explanatory view for explaining suction by the core drill unit and the suction device in the embodiment of the present invention. FIG. 7 is a system configuration diagram of a suction device according to an embodiment of the present invention, and is a view for explaining suction of core particles and removal of dust contained in air sucked from a suction port.

  In some embodiments, the suction device 4 is a suction force generator that generates suction force with the inner surface 31 d of the connection portion 31 b of the core bit 31 as the suction port 4 a as shown in FIGS. Contains 41. More specifically, the suction port 4a (the inner side surface 31d of the connecting portion 31b) is provided inside the core bit support portion 33a in the core drill unit side pipe 42 connected to the core bit support portion 33a as shown in FIG. It communicates by way of The core drill unit side pipe 42 is in communication with the dust collector side pipe 47 via the switching valve device 43. And, a suction force generator 41 is provided in the middle of the dust collecting apparatus side pipe 47.

  Here, the suction power generation device 41 generates suction power at the suction port 4 a to suction air containing dust. Further, the suction force generator 41 sends the air sucked from the suction port 4a to the downstream side of the core drill unit side pipe 42 and the dust collector side pipe 47 as shown in FIG. The first dust collector 44 to the third dust collector 46 which will be described later, which are disposed upstream of the suction force generator 41, are forced to pass through. The suction force generating device 41 includes a blower 41a as shown in FIGS.

  The suction force generator 41 not only collects dust inside the core bit 31 from the suction port 4 a when the roof slab 20 is cut by the core drill unit 3, but also collects dust outside the outer peripheral surface 31 e on the lower end side of the core bit 31. Can also do. As described above, the convex portion 32a of the cutting blade 32 is such that the outer side surface 32c protrudes outside the outer peripheral surface 31e of the body 31a, and the inner side surface 32d protrudes inside the inner peripheral surface 31c of the body 31a. Provided in Then, as shown in FIG. 6, the substantially cylindrical core shell 10 formed by cutting the roof roof slab 20 in an annular shape by the core drill unit 3 has a gap 31f between itself and the inner peripheral surface 31c of the body portion 31a. It has an outer diameter as it has. Furthermore, air outside the outer peripheral surface 31 e on the lower end side of the core bit 31 flows into the core bit 31 via the groove 32 b of the cutting blade 32 and the gap 31 f of the core bit 31 by the suction force of the suction force generator 41. Do. Therefore, the suction force generator 41 can collect the outside of the outer peripheral surface 31 e on the lower end side of the core bit 31 when the roof slab 20 is cut by the core drill unit 3.

  In addition, when the suction force generator 41 forms the through hole 20 b in the roof roof slab 20, the core shell 10 formed so as to enter the inside of the core drill unit 3 does not fall off from the inside of the core drill unit 3. It generates power.

  In addition, in some other embodiments, the rooftop slab suspension hole drilling device 1 further includes a core-glass falloff prevention device 5 as shown in FIGS. Here, FIG. 8 is a figure for demonstrating the operation | movement of the core-glass drop-off prevention apparatus in one Embodiment of this invention, and is a figure which shows the state which the core-glass support stand moved backward. FIG. 9 is a figure for demonstrating the operation | movement of the core-glass drop-off prevention apparatus in one Embodiment of this invention, Comprising: It is a figure which shows the state which the core-glass support stand advanced. As shown in FIGS. 8 and 9, the core-glass dropout prevention device 5 includes a core-glass dropout prevention device main body 52 fixed to the inside of the end frames 21d and 21e of the frame main body 21; And a core rattan support 51 configured to be capable of advancing and moving away from the core rattan detachment preventing device main body 52 and approaching the core rattle detachment preventing main body 52. The core-glass falloff prevention device main body 52 has a plate-like tip 52a capable of forward movement and backward movement. In addition, the core-glass support base 51 is a plate-like fixing plate 51a that is abutted and fixed to the tip 52a of the core-glass falling-off prevention device main body 52, and a plate-like support projecting horizontally from the fixing plate 51a And a plate portion 51b.

  As shown in FIGS. 8 and 9, the core bit 31 carries out a backward motion of the core rattle support base 51 and approaches the core rattle falloff prevention device main body 52, the opening 31g is not blocked, but the core rattle support When the platform 51 moves forward and separates from the core-glass falloff prevention device main body 52, at least a part of the opening 31g is closed. Then, in a state where the core rattle support base 51 blocks at least a part of the opening 31 g of the core bit 31, when the suction force by the suction device 4 does not act on the core shell 10, the support plate portion 51 b lowers the core shell 10. It is supposed to support from

  Further, in some other embodiments, as shown in FIG. 7, the switching valve device 43 of the suction device 4 is configured to set the suction force generated by the suction force generator 41 to one of the plurality of core drill units 3. It is possible to supply alternatively. The switching valve device 43 is connected to the other end of each of the plurality of core drill unit side pipes 42 whose one end is connected to each of the plurality of core drill units 3 as shown in FIG. 7. The switching valve device 43 communicates the dust collection device side piping 47 with only one of the plurality of core drill unit side pipings 42. Note that the switching valve device 43 is not limited to the configuration as shown in FIG. 7, and a configuration in which on / off valves (valves) are individually provided on the plurality of core drill unit side pipes 42, a two-way valve or a three-way valve It also includes a configuration in which etc. are combined.

  In some embodiments, the suction device 4 comprises a cyclone-type first dust collector 44 disposed downstream of the switching valve device 43 and a downstream of the first dust collector 44, as shown in FIG. It includes a filter-type second dust collector 45 disposed on the side, and an air-filter-type third dust collector 46 disposed on the downstream side of the second dust collector 45. The first dust collection device 44, the second dust collection device 45 and the third dust collection device 46 are disposed inside the central frame portion 21c of the frame main body 21 as shown in FIGS.

  The first dust collection device 44 is provided below the first dust collection device main body 44a and the first dust collection device main body 44a for centrifuging dust contained in the air as shown in FIG. (1) A box-shaped first dust collection container 44b communicating with the discharge portion at the lower part of the dust collection device main body 44a and collecting the dust centrifuged in the first dust collection device main body 44a. The first dust collection container 44b is detachably provided to the first dust collection main body 44a.

  The second dust collection device 45 includes a bag filter device having a bag filter as shown in FIG. 7 and filters and separates dust with a fibrous filter (filter cloth) mounted inside And a box-like second dust collection container 45b for collecting dust separated by the second dust collection body 45a. The second dust collection container 45b is detachably provided to the second dust collection main body 45a. Further, an air compressor 48 is connected to the second dust collection main body 45a so as to communicate with the inside thereof, and pressurized air compressed by the air compressor 48 removes dust trapped on the above-described fibrous filter. It is dropped.

  The third dust collection device 46 includes a HEPA filter device having a HEPA filter as shown in FIG. 7, and a slight dust collection that has passed through the first dust collection device 44 and the second dust collection device 45. Are separated and recovered with higher accuracy. Then, the air that has passed through the third dust collection device 46 is discharged to the outside air after passing through the silencer 49.

  In some embodiments, the roof slab suspension hole drilling device 1 comprises a frame 2 as described above as shown in FIGS. 1-3, 5-7, 11 and at least one core drill unit 3 as described above; And the suction device 4.

  According to the above configuration, the rooftop slab suspension hole drilling device 1 is fixed to the frame 2 placed on the floor surface 10 a of the rooftop slab 20 and the frame 2 and cuts the rooftop slab 20 into an annular shape. The dry core drill unit 3 forming the through hole 10 b (hanging hole) and the suction device 4 are provided. Then, since the suction device 4 collects dust in the vicinity of the cutting point of the core drill unit 3, the roof slab suspension hole drilling device 1 suppresses scattering of dust generated when the roof slab 20 is cut by the core drill unit 3. be able to.

  Moreover, since the roof slab suspended hole drilling device 1 can prevent the suction device 4 from dropping off the core shell 10 from the inside of the core drill unit 3 by the suction force, the core roof 10 passes through the through hole 10 b and the lower side of the roof slab 20 It is possible to prevent the core shell 10 from directly affecting the outside of the core drill unit 3.

  Therefore, according to the above configuration, it is possible to suppress the health damage of the worker and the deterioration of the working environment.

  Moreover, in some other embodiments, the core drill unit 3 includes the above-described core bit 31 as shown in FIGS. 5 and 6, the above-described cutting blade 32, and the above-described drill unit 33. .

  According to the above configuration, the core drill unit 3 includes the cylindrical core bit 31, the cutting blade 32 provided at one axial end of the core bit 31, and the drill unit 33. The drill unit 33 rotatably supports the core bit 31 and rotationally drives the core bit 31. Furthermore, the drill unit 33 can move the core bit 31 up and down along the thickness direction of the roof slab 20. In such a drill unit 33, the cutting edge 32 is rotationally driven by the drill unit 33 together with the core bit 31 to cut the ring shape along the thickness direction of the roof roof slab 20, thereby providing a hanging hole for transfer ( Through holes 10b) can be formed.

  Also, in some other embodiments, the core drill unit 3 can be moved linearly along a horizontal direction with respect to the above-mentioned frame 2 as shown in FIGS. It is configured.

  According to the above configuration, the core drill unit 3 is configured to be linearly movable along the horizontal direction with respect to the frame 2. The roof slab 20 can be cut by the core drill unit 3 at a place moved in a straight line. For this reason, for example, when cutting by the core drill unit 3 is difficult due to, for example, the roof slab 20 to be cut by the core drill unit 3 and the members provided below the roof roof slab 20 being hard, etc. it can.

  Also, in some other embodiments, core drill unit 3 includes core bit 31 as described above, as shown in FIGS. And the roof-top slab suspension hole drilling device 1 is provided with the core-glass falloff prevention device 5 which has the above-mentioned core-glass support stand 51 as shown by FIG.

  According to the above configuration, since the rooftop slab suspension hole drilling device 1 is provided with the core-glass falloff prevention device 5 having the core-glass support base 51 configured to be movable so as to close at least a part of the opening 31g of the core bit 31; When the suction force by the suction device 4 does not work on the core shell 10, the core shell 10 is supported by the core shell support base 51, so that the core shell 10 is prevented from falling below the roof roof slab 20 through the through hole 10b. can do.

  Also, in some other embodiments, the rooftop slab suspension hole drilling apparatus 1 comprises a plurality of core drill units 3 as described above as shown in FIGS. 1-3, 5, 6, 8, 9. The suction device 4 includes the suction force generation device 41 described above and the switching valve device 43 described above, as shown in FIGS.

  According to the above configuration, the suction device 4 selectively supplies the suction force generated by the suction force generation device 41 for generating the suction force and the suction force generated by the suction force generation device 41 to one of the plurality of core drill units 3. Since the switching valve device 43 for performing the switching operation is included, the suction force generated by the suction force generation device 41 is supplied to only one core drill unit 3 by the switching valve device 43. For this reason, the suction force generation device 41 only needs to generate a suction force enough to prevent one core drill unit 3 from falling off from the inside of the core shell 10. Therefore, a suction force generation device accompanying the increase of the necessary suction force. It is possible to prevent an increase in size and weight of the roof slab hanging hole drilling device 1 or 41.

  Also, in some other embodiments, the suction device 4 includes the first dust collector 44 described above, the second dust collector 45 described above, as illustrated in FIGS. And a third dust collection device 46. In this case, the suction device 4 collects dust in three steps in order of the cyclone type first dust collector 44, the filter type second dust collector 45, and the air filter type third dust collector 46. Therefore, the amount of dust collected in the air exhausted from the suction device 4 to the outside can be reduced.

  Also, in some other embodiments, the suction device 4 includes the first dust collector 44 described above, the second dust collector 45 described above, as illustrated in FIGS. And a third dust collection device 46. The first dust collection device 44 has the above-described first dust collection container 44b as shown in FIG. Furthermore, the second dust collection device 45 has the above-described second dust collection container 45b as shown in FIG. In this case, the suction device 4 collects dust in three steps in order of a cyclone type first dust collector 44, a filter type second dust collector 45, and an air filter type third dust collector 46. Then, the first dust collection device 44 and the second dust collection device 45, in which dusts are easily accumulated, can accumulate dusts in the removable first dust collection container 44b and the second dust collection container 45b. When a predetermined amount of dust accumulates in the first dust collection container 44b or the second dust collection container 45b, the worker collects these dust collection containers (the first dust collection container 44b or the second dust collection container 44b). Since the second dust collection container 45b) may be replaced with a new one, dust can be prevented from scattering from the first dust collection container 44b and the second dust collection container 45b when replacing the dust collection container. can do.

  FIG. 10 is a schematic view schematically showing a control system of a roof slab hanging hole drilling device according to an embodiment of the present invention. FIG. 11 is an explanatory view for explaining a drilling condition confirmation device in the rooftop slab suspension hole drilling device according to the embodiment of the present invention.

  In some other embodiments, the rooftop slab suspension hole drilling device 1 is configured to be remotely operable as shown in FIG. More specifically, the rooftop slab suspension hole drilling device 1 includes a control panel 6 disposed inside the central frame portion 21c of the frame main body 21 as shown in FIGS. A first control device 61 disposed inside, an apparatus-side wireless device 62 (wireless device) provided in the rooftop slab suspension hole drilling device 1 and connected to the first control device 61, and a central frame of the frame main body 21 And a driving force generator 8 disposed inside the portion 21c. In addition, the operation room 7 located at a position separated from the roof roof slab suspension hole drilling device 1 is provided in the operation room 7 and the second control device 71 disposed inside the operation room 7 as shown in FIG. And an operation room side wireless device 72 connected to the second control device 71, and a second input / output device 73 disposed inside the operation room 7 and connected to the second control device 71. There is.

  The driving force generating device 8 generates the driving force of the core drill unit 3, the suction device 4 and the core shell falling-off preventing device 5, and includes, for example, a diesel generator or a compressor. The device-side wireless device 62 and the operation room-side wireless device 72 are configured to be able to transmit and receive signals to each other even when they are disposed at mutually separated positions. Each of the first control device 61 and the second control device 71 is provided with a signal input unit, a signal output unit, a storage unit, an operation unit, and the like (not shown). The first control device 61 is connected to the core drill unit 3, the suction device 4, the core-glass dropout prevention device 5, and the driving force generator 8.

  The first control device 61 is, as shown in FIG. 10, signals sent from the core drill unit 3, the suction device 4, the core-glass dropout prevention device 5 and the driving force generator 8, radio devices (device-side wireless device 62 and operation The core drill unit 3, the suction device 4, the core-glass dropout prevention device 5, and the driving force generation device based on the signals sent from the second control device 71 and the second input / output device 73 via the room side wireless device 72). Control of 8 is performed. Further, the first control device 61 sends signals to the second control device 71 and the second input / output device 73 via the wireless devices (the device-side wireless device 62 and the operation room-side wireless device 72). With the above-described configuration, the operator operates the second input / output device 73 in the operation room 7 remote from the roof roof slab suspension hole drilling device 1 to thereby prevent the core drill unit 3, the suction device 4, and the core rattle detachment prevention device 5. And the driving force generator 8 can be operated remotely.

  In addition, in some other embodiments, the rooftop slab suspension hole drilling device 1 further includes a first input / output device 63 removably connected to the first control device 61, as shown in FIG. There is. In this case, the operator operates the first input / output device 63 in the vicinity of the rooftop slab suspension hole drilling device 1 to generate the core drill unit 3, the suction device 4, the core gutter drop prevention device 5, and the driving force generation. The device 8 can be operated.

  Moreover, in the other some embodiment, the core drill unit 3 mentioned above and the suction device 4 mentioned above are comprised so that remote control is possible. And the roof-top slab hanging hole drilling device 1 includes the device-side wireless device 62 described above as shown in FIG. In this case, since the roof slab suspension hole drilling device 1 is configured to be able to remotely control the core drill unit 3 and the suction device 4 by the device-side wireless device 62 disposed inside the frame 2, the operator can The roof roof slab 20 can be cut by remote control from a location remote from the roof roof slab suspension hole drilling device 1. For this reason, it is possible to suppress the health damage of the workers and the deterioration of the working environment.

  In addition, in some other embodiments, the rooftop slab suspension hole drilling device 1 is provided with the above-described driving force generator 8 as shown in FIGS. In this case, since the roof slab hanging hole drilling device 1 is provided with the driving force generating device 8 for generating the driving force of the core drill unit 3 and the suction device 4 inside the frame 2, the rooftop slab hanging hole drilling device For example, 1 can drive the core drill unit 3 and the suction device 4 at the transfer destination by the lifting machine. According to the above configuration, the worker can drive the core drill unit 3 and the suction device 4 even when the rooftop slab suspension hole drilling device 1 is disposed at a remote place away from the worker.

  In addition, in some other embodiments, the roof slab suspension hole drilling device 1 further includes a drilling status confirmation device 9 for confirming the drilling status of the roof roof slab 20 by the core drill unit 3 as shown in FIG. Have. Then, the punching state confirmation device 9 is at least any one of an imaging device 91 for photographing the vicinity of a cutting portion of the core drill unit 3 and a sound collecting device 92 for collecting cutting sounds of the core drill unit 3 as shown in FIG. Includes one or more. In addition, the punching state confirmation device 9 is connected to the first control device 61, and can transmit information such as imaging information and cutting sound to the first control device 61. In this case, since the worker can confirm the drilling condition of the roof slab 20 by the core drill unit 3 by the drilling condition confirmation device 9 from a place away from the roof slab suspension hole drilling device 1, the roof slab is remotely operated. 20 can be cut efficiently.

  FIG. 12 is a schematic perspective view schematically showing a perspective view of the slinging device connected to the rooftop slab hanging hole drilling device according to the embodiment of the present invention. Drawing 13 is an explanatory view for explaining connection with a roof slab suspension hole drilling device and a pooling device concerning one embodiment of the present invention.

  Further, in some other embodiments, the frame 2 is provided above the central frame portion 21c of the frame main body 21 as shown in FIGS. At least one of a guide portion 23 for positioning the beading device 15 at the time of coupling with the device 15 and at least one opening 24a provided above the central frame 21c of the frame main body 21 and used for coupling with the beading device 15. And a connecting portion 24. Here, the rooftop slab hanging hole drilling device 1 is suspended by the lifting device together with the lifting device 15 by being detachably connected and fixed to the lifting device 15 suspended by using the wire 14 in the lifting device. Can be transported.

  The beading device 15 is formed in a square frame shape having a square hole 15a at the central portion as shown in FIGS. Further, the throwing device 15 is provided with a plate-like wire attachment portion 15b which is in contact with the upper surface of the four corner portions. And in the wire attaching part 15b, the through-hole 15c penetrated along the thickness direction for attaching the wire 14 of a lifting machine is formed. Further, the sling device 15 is formed in a hollow shape as shown in FIG. 13, and the connecting device main body 16 b of the connecting device 16 is located inside each of two opposing sides and closer to both ends. It is fixed. And the side surface and the lower side by which the connecting device 16 of four corners is provided are opened in the throwing device 15. The connecting device 16 is configured to be able to move forward and backward toward the connecting device main body 16b by moving the rod-like distal end portion 16a away from the connecting device main body 16b toward the corner of the beading device 15.

  The guide portion 23 of the frame 2 is formed so that the outer dimension in the horizontal direction is smaller than the inner shape of the square hole 15a of the beading device 15 as shown in FIGS. It is configured to be insertable into the inside of the fifteen square holes 15a. And the guide part 23 has the inclined surface 23a for guiding each of four side parts which comprise the beading apparatus 15 to four directions of a horizontal direction, respectively. Therefore, when being mounted on the central frame portion 21c of the frame main body 21, the throwing device 15 is guided by the four inclined surfaces 23a of the guide portion 23, and the guide portion 23 is inserted into the inside of the square hole 15a. As a result, positioning with the frame 2 is performed.

  The connecting portion 24 of the frame 2 is in the form of a plate, as shown in FIGS. It has an opening 24a which is formed and penetrates along the thickness direction. The connecting portion 24 of the frame 2 is inserted into the corner of the striking device 15 when the striking device 15 is placed on the central frame portion 21 c of the frame main body 21. Then, the frame 2 is detachably connected to the throwing device 15 by inserting the end portion 16 a of the connecting device 16 into the opening 24 a of the connecting portion 24.

  In addition, in some other embodiments, the frame 2 includes the above-described guide portion 23 and the connection portion 24 having the above-described opening 24 a as shown in FIGS. . In this case, the frame 2 includes the guide portion 23 for positioning the slinging device 15 at the time of connection with the slinging device 15, and the connecting portion 24 having an opening 24a used for connection with the slinging device 15. The alignment and connection between the roof slab hanging hole drilling device 1 and the lashing device 15 can be easily performed.

  Further, in some other embodiments, the throwing device 15 is provided to be remotely operable. More specifically, the throwing device 15 further includes a driving force generator 17 and a control panel 18 as shown in FIG. Further, the throwing device 15 has the same configuration as that of the above-described control panel 6 as shown in FIG. 10 inside the control panel 18. That is, the throwing device 15 further includes a first control device (not shown) and a device-side wireless device (not shown) inside the control panel 18. In this case, the worker can attach and detach the slinging device 15 even when the rooftop slab suspension hole drilling device 1 is disposed at a remote place away from the worker.

  The present invention is not limited to the above-described embodiments, and includes the embodiments in which the above-described embodiments are modified, and the embodiments in which these embodiments are appropriately combined.

Reference Signs List 1 roof slab hanging hole drilling device 2 frame 21 frame main body 21a vertical frame member 21b horizontal frame member 21c central frame portion 21d, 21e end frame portion 22 support leg 23 guide portion 23a inclined surface 24 connecting portion 24a opening 3 core drill unit 31 core bit 31a body portion 31b connecting portion 31c inner peripheral surface 31d inner side surface 31e outer peripheral surface 31f gap 31g opening 32 cutting blade 32a convex portion 32b groove portion 32c outer side surface 32d inner side surface 33 drill unit 33a core bit support portion 33b drive source built-in portion 33c support portion 33d Slide part 33e Slide drive source 33f Rack 4 Suction device 41 Suction force generator 41a Blower 42 Core drill unit side piping 43 Switching valve device 44 First dust collector 44a First dust collector body 44b First dust collection container 45 2 Dust collector 45a 2nd dust collector book Body 45b Second dust collection container 46 Third dust collection device 47 Dust collection device side piping 48 Air compressor 49 Silencer 5 Core rattle falling prevention device 51 Core glass support stand 6 Control panel 61 1st control device 62 Device side wireless device 63 1st Input / output unit 7 Operation room 71 Second control unit 72 Operation room side wireless unit 73 Second input / output unit 8 Driving force generator 9 Punching condition check unit 91 Imaging unit 92 Sound collector 10 Core shell 11 Slide table unit 11a Guide rail 11b Slide table 12 Storage container 14 Wire 15 Blocking device 15a Square hole 15b Wire mounting portion 15c Through hole 16 Connecting device 17 Drive force generator 18 Control panel 19 Rooftop slab disassembly method 20 Rooftop slab 20a Floor surface 20b Through hole Lc Axis

Claims (11)

A roof slab suspension hole drilling device for drilling a roof roof slab to form a suspension hole for transfer, comprising:
The rooftop slab suspension hole drilling device is
A frame mounted on the floor surface of the roof roof slab;
At least one core drill unit, which is a dry core drill unit fixed to the frame, and cuts the roof roof slab in an annular shape along the thickness direction of the roof roof slab;
A suction device for collecting dust in the vicinity of a cutting point of the core drill unit, comprising: a suction device capable of preventing the core shell from falling off from the inside of the core drill unit when the through hole is formed by a suction force. ,
A roof slab hanging hole drilling device characterized in that. The core drill unit is
A cylindrical core bit,
A cutting blade provided at one axial end of the core bit;
And a drill unit rotatably supporting the core bit and rotatably driving the core bit, wherein the drill bit is capable of moving the core bit up and down along the thickness direction of the roof slab. The rooftop slab suspension hole drilling device according to claim 1.   The roof slab suspension hole drilling device according to claim 1, wherein the core drill unit is configured to be linearly movable along a direction horizontal to the frame body. The core drill unit includes a cylindrical core bit,
4. The roof slab suspension hole drilling apparatus according to claim 1, further comprising: a core shell falling-off prevention device having a core shell support base configured to be movable so as to close at least a part of the opening of the core bit. The rooftop slab suspension hole drilling device according to any one of the above. The rooftop slab suspension hole drilling device comprises a plurality of the core drill units,
The suction device is
A suction force generator for generating the suction force;
5. A switching valve device for selectively supplying the suction force generated by the suction force generation device to one of the plurality of core drill units. The roof-top slab suspension hole drilling device according to item 1. The suction device is
A cyclone type first dust collector disposed inside the frame;
A filter type second dust collector disposed inside the frame and disposed downstream of the first dust collector;
The air filter type third dust collection apparatus disposed inside the frame and disposed on the downstream side of the second dust collection apparatus. The roof-top slab suspension hole drilling device according to item 1. The first dust collection apparatus has a detachable first dust collection container,
The roof slab hanging hole drilling device according to claim 6, wherein the second dust collection device has a removable second dust collection container. The core drill unit and the suction device are configured to be remotely operable.
The roof slab hanging hole drilling device is a wireless device disposed inside the frame, and further comprising a wireless device for remotely operating the core drill unit and the suction device. The roof-top slab suspension hole drilling device according to any one of to 7. The rooftop slab suspension hole drilling device further includes a drilling status confirmation device for checking a drilling status of the rooftop slab by the core drill unit;
The perforation status confirmation device is
An imaging device for imaging the vicinity of the cutting portion of the core drill unit;
The roof slab suspension hole drilling device according to claim 8, comprising at least one of a sound collecting device for collecting cutting noise of the core drill unit.   The roof slab hanging hole drilling device is a driving force generating device disposed inside the frame, and further includes a driving force generating device that generates a driving force of the core drill unit and the suction device. The roof slab hanging hole drilling device according to claim 8 or 9. The frame is
A guide portion provided above the frame to position the beading device when the frame and the beading device are connected;
The roof top slab according to any one of claims 1 to 10, further comprising: at least one connecting portion provided above the frame and having an opening used for connection with the pooling device. Hanging hole drilling device.

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