JP6625160B2 - Post-installation anchor installation equipment - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post-installed anchor installation apparatus for perforating an anchor hole of a post-installed anchor and placing the post-installed anchor.

  2. Description of the Related Art Conventionally, an operator manually performs a drilling operation of an anchor hole in a post-installed anchor by using a hand drill. For this reason, when piercing a plurality of anchor holes, the piercing depth of each anchor hole varies.

  Here, for example, when constructing the post-construction anchor of the female screw type, if the depth of the anchor hole is insufficient, the outer sleeve will protrude from the construction surface. Also, if the anchor hole is too deep, it is not known how far the outer sleeve should be driven to open the expanded portion of the outer sleeve, and the post-installed anchor may not be properly fixed to the installed portion.

  Therefore, a technique is disclosed in which an inner member of a post-installed anchor is inserted into an anchor hole, and a hole is drilled so that a rear end surface of the inner member is substantially flush with the surface of the concrete structure, so that the anchor hole has an appropriate depth. (For example, see paragraphs [0019] to [0020] of Patent Document 1 and FIG. 4).

JP 2018-35510 A

  In the method of Patent Document 1, after drilling an anchor hole in a construction surface, the inner member is inserted to the depth of the anchor hole, and it is confirmed that the rear end surface of the inner member is flush with the construction surface. However, in the method of Patent Document 1, when the depth of the hole of the anchor hole is shallow and the rear end face of the inner member protrudes from the construction surface, the inner member is taken out, and after the anchor hole is further deeply drilled, the inner member is removed. Is inserted again into the anchor hole to confirm the drilling depth.

  As described above, in the method of Patent Document 1, the anchor hole is formed by relying on the experience of the worker. Therefore, when an inexperienced operator performs a drilling operation, the drilling depth varies, and the same anchor hole may be drilled a plurality of times. is there.

  Furthermore, in the method of Patent Literature 1, the drilling work of the anchor hole and the placing work of the post-installed anchor are performed using different drilling devices and placing tools, respectively, and the number of working steps is increased.

  The present invention has been made in order to solve the problems as described above, and a post-installation anchor installation device capable of stabilizing the installation quality of the post-installation anchor and reducing the number of steps of the installation work. What you get.

  The post-installation anchor installation device according to the present invention includes a hammer drill that holds a drill bit, and a moving mechanism that moves the hammer drill forward and backward, and drills an anchor hole in a construction surface by moving the hammer drill forward and moves. The mechanism stops the forward movement when the hammer drill has moved a predetermined distance.

  ADVANTAGE OF THE INVENTION This invention can suppress the dispersion | variation of the drilling depth of an anchor hole by an operator's experience by prescribing the moving distance of the drill bit which drills an anchor hole in a post-installation anchor installation apparatus. Thereby, the construction quality of the post-construction anchor can be stabilized, and the number of man-hours for the construction work can be reduced.

It is a perspective view which shows the post-installation anchor installation apparatus in Embodiment 1 of this invention. It is a side view which shows the post-installation anchor installation apparatus in Embodiment 1 of this invention. It is a front view showing the state where a drill bit was attached to a post-installation anchor installation device in Embodiment 1 of the present invention. It is a front view which shows the state which drills an anchor hole using the post-installation anchor construction apparatus in Embodiment 1 of this invention. It is a front view which shows the state which attached the anchor hole brush and the cleaning air tube to the post-installation anchor installation apparatus in Embodiment 1 of this invention. It is a front view which shows the state which attaches an anchor placing rod to the post-installed anchor installation apparatus in Embodiment 1 of this invention, and drives in a post-installed anchor. It is a perspective view which shows the raising stand attached to the post-installation anchor installation apparatus in Embodiment 1 of this invention. It is a side view which shows the state which attached the raising stand to the post-installation anchor installation apparatus in Embodiment 1 of this invention. FIG. 5 is a side view showing a state in which the moving mechanism is inclined in the post-installation anchor installation device according to the first embodiment of the present invention.

  Hereinafter, preferred embodiments of the post-installation anchor installation device of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a post-installed anchor installation device 1 according to Embodiment 1 of the present invention. FIG. 2 is a side view showing the post-installation anchor installation apparatus 1 according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the post-installation anchor installation apparatus 1 includes a top plate 110, a side plate 120, and a base plate 130. On the side plate 120, two handles 140 which are gripped by an operator when the post-installation anchor is installed are arranged.

  The base plate 130 is connected to a step 150 that a worker steps on when installing the post-installed anchor, a caster 160 used when transporting the post-installed anchor application device 1, and a vacuum cleaner connection to which a hose of a vacuum cleaner (not shown) is connected. A mouth 170 is located.

  On the side plate 120, a rodless cylinder 40 as a moving mechanism, an air compressor 30 for sending air to the rodless cylinder 40, and a three-way valve 60 for switching a flow path of air sent from the air compressor 30 are arranged.

  A pipe to which air is supplied from the air compressor 30 is connected to the first valve of the three-way valve 60. A pipe for supplying air to a port (not shown) of the rodless cylinder 40 is connected to the second valve of the three-way valve 60. When cleaning the anchor hole, a cleaning air tube 300 described later is connected to the third valve of the three-way valve 60.

  The rodless cylinder 40 has a slider 41 that moves up and down by air supplied from the air compressor 30. The electric hammer drill 10 is attached to the slider 41. The hammer drill 10 moves up and down together with the slider 41.

  The hammer drill 10 has a tool holding part 11 for holding and rotating the tool. The tool holder 11 interchangeably holds a plurality of different types of tools. The plurality of different types of tools include at least a drill bit 80, an anchor hole brush 81, and an anchor placing rod 82 described later.

  The wire type displacement gauge 20 is attached to the side plate 120. The wire type displacement meter 20 electrically measures the length of the drawn wire and outputs a measured value. One end of the wire of the displacement meter 20 is attached to the slider 41. Then, the displacement meter 20 measures the moving distance of the slider 41. The post-installation anchor installation apparatus 1 in the first embodiment obtains the depth of the anchor hole based on the measurement value of the displacement meter 20.

  The control device 50 is attached to the top plate 110. The control device 50 has a power supply unit, a storage unit, an input unit, and an output unit (not shown).

  An input / output terminal 51 connected to the input unit and the output unit is attached to the housing of the control device 50. Further, a main power switch 90, an electric hammer drill operation switch 91, and an automatic drilling operation ON / OFF switch 92 are arranged in the housing of the control device 50.

  The main power switch 90 switches between energization and interruption of electric power supplied from the power supply unit to the air compressor 30 and the hammer drill 10. The electric hammer drill operation switch 91 starts and stops the hammer drill 10. The hammer drill 10 is provided with an operation mode changeover switch (not shown). The operation mode changeover switch switches the operation mode of the hammer drill 10 to any one of “rotation + strike”, “rotation”, and “strike”. The automatic piercing operation ON / OFF switch 92 switches to one of an automatic operation in which the slider 41 is lowered and stopped and a slider 41 is raised continuously, and a single-action operation in which the slider 41 is lowered and raised independently.

  Further, an up / down switch 93 for switching the moving direction of the slider 41 is disposed at the base of one of the two handles 140. At the base of the other handle 140 of the two handles 140, a drilling start button 94 for starting the drilling operation of the anchor hole is arranged.

  Next, until the anchor hole 210 is drilled, the anchor hole 210 is cleaned, and the post-installed anchor 400 is placed in the anchor hole 210 using the post-installed anchor installation apparatus 1 of the first embodiment configured as described above. The work procedure will be described with reference to FIGS. Here, FIG. 3A is a front view showing a state in which a drill bit is attached to the post-installed anchor installation apparatus according to Embodiment 1 of the present invention. FIG. 3B is a front view showing a state in which an anchor hole is drilled using the post-installed anchor installation device according to Embodiment 1 of the present invention. FIG. 4 is a front view showing a state in which an anchor hole brush and a cleaning air tube are attached to the post-installed anchor installation apparatus according to Embodiment 1 of the present invention. FIG. 5 is a front view showing a state in which an anchor placing rod is attached to the post-installed anchor installation apparatus according to Embodiment 1 of the present invention and the post-installed anchor is driven.

  First, the work of piercing the anchor hole 210 will be described.

  First, the external device is connected to the input / output terminal 51 of the control device 50, and a specified value for setting the depth of the anchor hole 210 is input. The control device 50 stores the input specified value in the storage unit.

  Next, as shown in FIG. 3A, the tool holder 11 of the hammer drill 10 holds the drill bit 80 corresponding to the work surface 200. At this time, if the length of the drill bit 80 is long, a raising stand 180 shown in FIG. 6A is added below the base plate 130, and as shown in FIG. The distance to the holding unit 11 is increased.

  Next, the operation mode of the hammer drill 10 is set to “rotation + stroke” by an operation mode changeover switch (not shown) provided in the hammer drill 10.

Next, the post-installation anchor working device 1 is moved so that the tip of the drill bit 80 is aligned with the drilling position on the working surface 200.
Next, the slider 41 is manually lowered, and the tip of the drill bit 80 is abutted against the construction surface 200. In this state, a zero-setting process of the measurement value of the displacement meter 20 is performed by a switch (not shown) provided in the displacement meter 20. The triangular portion within a range of 5 mm from the tip of the drill bit 80 is excluded from the depth of the anchor hole 210. For this reason, -5 mm is set as an offset value for the measurement value of the displacement meter 20. Therefore, the measurement value of the displacement meter 20 becomes -5 mm at the time of the zero set processing.

  Next, the hose end of a vacuum cleaner (not shown) is connected to the vacuum cleaner connection port 170 shown in FIG. 2, and the switch of the vacuum cleaner is turned on. Since the switch of the vacuum cleaner may be appropriately turned on / off according to the work situation, the following description omits the on / off of the switch of the vacuum cleaner.

Next, the main power switch 90 is turned on to start the air compressor 30.
Next, the automatic drilling operation ON / OFF switch 92 is turned ON.
Next, the handle 140 is grasped with both hands, and the step 150 is stepped with both feet.

  Next, the electric hammer drill operation switch 91 is turned ON, and the hammer drill 10 is started. Then, the drill bit 80 held by the tool holding unit 11 of the hammer drill 10 is rotated.

Next, the up / down switch 93 is set to the down side.
Next, the piercing start button 94 is pressed to lower the slider 41. The hammer drill 10 fixed to the slider 41 descends, and the drill bit 80 attached to the tool holding part 11 descends while rotating. Then, as shown in FIG. 3B, an anchor hole 210 is formed in the construction surface 200 by the drill bit 80.

  The control device 50 compares the measurement value of the displacement meter 20 with a specified value while the slider 41 is moving downward. When it is determined that the measured value of the displacement meter 20 has reached the specified value, the downward movement of the slider 41 is stopped.

  During the drilling operation, the drilling operation is stopped when the drill bit 80 hits an obstacle that cannot be drilled, or when the drill bit 80 is damaged and cannot be drilled. In this case, the control device 50 detects that the measured value of the displacement meter 20 during the drilling operation is less than the specified value and that the measured value of the displacement meter 20 has not changed for a certain period of time, and determines that the drilling is abnormal. Then, the control device 50 stops the descending movement of the slider 41 and the operation of the hammer drill 10, and notifies the worker of the abnormality by a lamp or a buzzer (not shown).

  When the lowering of the slider 41 is stopped, the control device 50 stores the measurement value of the displacement meter 20, that is, the depth of the hole of the anchor hole 210 in the storage unit. The drilling depth of the anchor hole 210 may slightly fluctuate due to a time lag from when the measured value of the displacement meter 20 reaches a specified value to when the downward movement of the slider 41 is stopped.

  It should be noted that data such as the number, order, date and time of drilling the anchor holes 210 and the drilling depth may be stored in the storage unit in association with each other. Thereby, the construction results of the post-construction anchor 400 can be managed. In addition, by recording and managing the piercing depth of the anchor hole 210 in a time series, the life of the drill bit 80 can be predicted, and a maintenance plan of the post-installation anchor installation device 1 can be made.

  The control device 50 confirms that the drilling depth of the anchor hole 210 is within a predetermined allowable range centered on the specified value, and raises the slider 41. At this time, the up / down switch 93 is switched by the control device 50 to the up side.

  When the slider 41 returns to the initial position, the control device 50 notifies the worker of the completion of the perforation of the anchor hole 210 by a lamp or the like (not shown). The operator turns off the electric hammer drill operation switch 91 of the hammer drill 10 to stop the rotation of the tool holding unit 11.

  Next, a cleaning operation of the anchor hole 210 will be described.

  First, the drill bit 80 is removed from the tool holding portion 11 of the hammer drill 10, and the anchor hole brush 81 is attached. Note that the length of the anchor hole brush 81 is set such that the tip of the anchor hole brush 81 reaches the bottom of the anchor hole 210 when the slider 41 is lowered. If the anchor hole brush 81 is too long, the tip of the anchor hole brush 81 collides with the bottom of the anchor hole 210 and deforms the anchor hole brush 81. The deformed anchor hole brush 81 scrapes the inner wall of the anchor hole 210, and The inner diameter of 210 may be enlarged.

Next, the operation mode changeover switch of the hammer drill 10 is switched to “rotation”.
Next, the electric hammer drill operation switch 91 is turned ON, and the hammer drill 10 is started. Then, the anchor hole brush 81 held by the tool holding portion 11 of the hammer drill 10 is rotated.

Next, the up / down switch 93 is set to the down side.
Next, the automatic drilling operation ON / OFF switch 92 is turned off.
Next, the piercing start button 94 is pressed to lower the slider 41. The hammer drill 10 fixed to the slider 41 descends, and the anchor hole brush 81 attached to the tool holding part 11 descends while rotating. Then, as shown in FIG. 4, the anchor hole brush 81 is inserted all the way into the anchor hole 210.

  When the slider 41 reaches the descending end, the up / down changeover switch 93 is manually switched to the up position, the slider 41 is moved up, and the anchor hole brush 81 is pulled out from the anchor hole 210.

Next, the cleaning air tube 300 is connected to the third valve of the three-way valve 60.
Next, the three-way valve 60 is switched to the direction in which the first valve and the third valve are connected. Then, the air sent from the air compressor 30 is blown out from the cleaning air tube 300.
Next, the tip of the cleaning air tube 300 is directed toward the inside of the anchor hole 210, and the dust inside the anchor hole 210 is discharged.

  Next, the three-way valve 60 is switched to a direction in which the first valve and the second valve are connected. Then, the air sent from the air compressor 30 is supplied to the port of the rodless cylinder 40.

  Next, the operation of placing the post-installed anchor 400 into the anchor hole 210 will be described.

First, the anchor hole brush 81 is removed from the tool holding portion 11 of the hammer drill 10, and the anchor placing rod 82 is attached.
Next, the tip side of the post-installed anchor 400 is inserted into the anchor hole 210.
Next, the operation mode changeover switch of the hammer drill 10 is switched to “hit”.
Next, the electric hammer drill operation switch 91 is turned on.

Next, the up / down switch 93 is set to the down side.
Next, the piercing start button 94 is pressed to lower the slider 41. The hammer drill 10 fixed to the slider 41 descends, and the anchor driving rod 82 attached to the tool holding part 11 descends. Then, as shown in FIG. 5, the anchor placing rod 82 is hit against the upper part of the post-installed anchor 400, and the post-installed anchor 400 is driven into the anchor hole 210.

It is visually confirmed that the placement of the post-installation anchor 400 into the anchor hole 210 is completed, and the up / down switch 93 is switched to the up side.
When the slider 41 rises and returns to the initial position and stops, the electric hammer drill operation switch 91 is turned off.

  As described above, a series of operations up to the drilling of the anchor hole 210, the cleaning of the anchor hole 210, and the placing of the post-installed anchor 400 into the anchor hole 210 are completed. Thereafter, when the post-installation anchor 400 is further installed, this series of operations is repeated.

  As described above, according to the post-installation anchor application apparatus 1 of the first embodiment, the displacement meter that measures the moving distance of the control device 50, the input unit, the rodless cylinder 40 as the moving mechanism, and the slider 41 of the rodless cylinder 40. 20, a hammer drill 10 attached to the slider 41 and a drill bit 80 attached to the hammer drill 10.

  Then, in the drilling work of the anchor hole 210, when the control device 50 determines that the drilling depth of the anchor hole 210 based on the measurement value of the displacement meter 20 has reached the specified value, the movement of the slider 41 is stopped. Thereby, it is possible to suppress the occurrence of variation in the depth of the anchor hole 210 by the operator. Therefore, the construction quality of the post-construction anchor 400 can be stabilized, and the number of steps of the construction work can be reduced.

  In the first embodiment, the moving distance of the slider 41 is measured by the wire type displacement meter 20, but the method of measuring the moving distance of the slider 41 is not limited to this. For example, the moving distance of the slider 41 may be measured using a magnetic scale or the like.

  Further, in the first embodiment, the drilling depth of anchor hole 210 is set by the specified value stored in the storage unit of control device 50, but the method of setting the drilling depth of anchor hole 210 is not limited to this. Absent. For example, the prescribed value of the drilling depth of the anchor hole 210 may be set by a stopper attached to the rodless cylinder 40 and restricting the descending position of the slider 41. In this case, by moving the attachment position of the stopper, the prescribed value of the depth of the anchor hole 210 can be changed.

  Furthermore, although the post-installation anchor construction apparatus 1 according to the first embodiment is configured to construct the post-construction anchor 400 in a direction perpendicular to the construction surface 200, the direction in which the post-construction anchor 400 is constructed is limited to this. is not. For example, as shown in FIG. 7, the side plate 120 and the base plate 130 may be connected by a thumbscrew 190 as an angle adjusting mechanism, and the side plate 120 may be inclined with respect to the base plate 130. Then, the anchor hole 210 may be drilled at an angle θ with respect to the direction perpendicular to the construction surface 200. In addition, the angle θ of inclination with respect to the direction perpendicular to the construction surface 200 is 5 ° at the maximum.

  Although the post-installation anchor installation apparatus 1 of the first embodiment moves the hammer drill 10 in the vertical direction, the moving direction of the hammer drill 10 is not limited to the vertical direction. For example, the moving direction of the hammer drill 10 may be a horizontal direction or the like. In this case, the shape of the handle 140 may be appropriately changed, and the step 150 may be replaced with a member that abuts against a wall or the like.

  Reference Signs List 1 post-installation anchor installation device, 10 hammer drill, 11 tool holding part, 20 displacement gauge, 30 air compressor, 40 rodless cylinder (air cylinder), 41 slider, 50 control device, 51 input / output terminal, 60 three-way valve, 80 Drill bit, 81 Anchor hole brush, 82 Anchor setting rod, 90 Main power switch, 91 Electric hammer drill operation switch, 92 Automatic drilling operation ON / OFF switch, 93 Up / down switching switch, 94 Drilling start button, 110 Top plate , 120 side plate, 130 base plate, 140 handle, 150 step, 160 caster, 170 vacuum cleaner connection port, 180 raising stand, 190 thumbscrew (angle adjustment mechanism), 200 installation surface, 210 anchor hole, 300 cleaning air tube , 400 And construction anchor.

Claims (9)

A hammer drill that holds the drill bit,
A moving mechanism for moving the hammer drill forward and backward,
A post-installation anchor installation device, wherein the hammer drill is moved forward to drill an anchor hole in an installation surface by the drill bit,
A cleaning air tube ,
A first pipe;
And a second pipe,
The moving mechanism includes:
An air cylinder with a slider,
An air compressor that sends air to a port of the air cylinder,
The cleaning air tube has a three-way valve to which the first pipe and the second pipe are connected ,
The hammer drill is fixed to the slider
The first pipe is connected to the port of the air cylinder,
The second pipe is connected to the compressor;
The moving mechanism includes:
When the hammer drill is that the distance moved forward a predetermined, stop forward movement of the hammer drill,
Cleaning the anchor hole by switching the three-way valve to a position where the cleaning air tube and the second pipe are connected and ejecting air from the cleaning air tube ;
Post-installation anchor installation equipment. A control device having a storage unit;
Further comprising a displacement meter that measures the moving distance of the hammer drill,
The control device includes:
When the drilling depth of the anchor hole calculated based on the measured value of the movement distance of the hammer drill by the displacement meter reaches the specified value stored in the storage unit, the forward movement of the hammer drill is stopped. ,
The post-installation anchor installation device according to claim 1. The control device includes:
After stopping the forward movement of the hammer drill,
The depth of the anchor hole is stored in the storage unit as a performance value,
Retreating the hammer drill,
The post-installed anchor installation device according to claim 2. The control device includes:
A plurality of the anchor holes and the depth of each anchor hole are stored in the storage unit in association with each other,
The post-installation anchor installation device according to claim 2 or 3. The control device has an output unit,
The data stored in the storage unit is output to the outside via the output unit,
The post-installation anchor installation device according to claim 3 or 4. The control device has an input unit,
Storing the specified value input through the input unit in the storage unit,
The post-installed anchor installation device according to any one of claims 2 to 5. The hammer drill has a tool holding part,
The tool holding unit exchangeably holds a plurality of different types of tools,
The different types of tools include at least the drill bit and an anchor driving rod,
The hammer drill, by holding the anchor placing rod in the tool holding portion, to place a post-installed anchor in the anchor hole,
The post-installed anchor installation device according to any one of claims 1 to 6. The different types of tools further include an anchor hole brush,
The hammer drill cleans the anchor hole by holding the anchor hole brush on the tool holding portion,
The post-installation anchor installation device according to claim 7. An advance / retreat direction of the moving mechanism is provided with an angle adjusting mechanism for inclining with respect to a direction perpendicular to the construction surface,
The post-installation anchor installation device according to any one of claims 1 to 8.

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