CN113427433B - Anchor bolt driving rod and anchor bolt driving construction method using same - Google Patents
Anchor bolt driving rod and anchor bolt driving construction method using same Download PDFInfo
- Publication number
- CN113427433B CN113427433B CN202110242289.8A CN202110242289A CN113427433B CN 113427433 B CN113427433 B CN 113427433B CN 202110242289 A CN202110242289 A CN 202110242289A CN 113427433 B CN113427433 B CN 113427433B
- Authority
- CN
- China
- Prior art keywords
- anchor bolt
- nut
- anchor
- driving
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Percussive Tools And Related Accessories (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides an anchor bolt driving rod and an anchor bolt driving method using the same, so that when a driving device is used for driving an anchor bolt into a wall surface, the anchor bolt does not need to be supported by hands of an operator, and the anchor bolt with a nut arranged on an external thread part in advance can be driven into the wall surface to a preset depth. An anchor bolt driving rod for driving an anchor bolt with a nut into a hole in a wall surface includes a holding portion for holding the anchor bolt and a connecting portion connected to a driving device. The holding part is provided with a nut rotation prevention mechanism for preventing the rotation of the nut in the state of holding the anchor bolt. The nut rotation preventing mechanism includes, for example, a pin plug, and a portion of an outer periphery of a pin of the pin plug, which is closest to a longitudinal axis of the grip portion, is located outside an inscribed circle of the nut when the grip portion grips the anchor bolt, and is located inside an inscribed circle of the nut.
Description
Technical Field
The present invention relates to an anchor bolt driving rod and an anchor bolt driving method using the same.
Background
In general, when attaching a bracket, a lamp, or other equipment to a wall surface of a structure represented by concrete, an anchor bolt driving operation is required. Specifically, a hole having a predetermined depth is bored in a wall surface by a hammer drill or the like, an anchor bolt is driven into the hole, and a device is fixed to the wall surface by a bolt and a nut attached to the anchor bolt. Conventionally, the driving of the anchor bolt is performed by an operator using a hammer tool, or by connecting a dedicated anchor bolt driving rod to an electric tool such as a hammer drill having a striking operation function.
As a prior art document relating to such an anchor driving rod, japanese patent laying-open No. 2009-264007 (patent document 1) discloses an anchor driving tool. The problem of patent document 1 is to provide an anchor bolt driving tool and an anchor bolt driving unit, which can perform an anchor bolt driving operation with a simple, small, and lightweight structure. In order to solve this problem, patent document 1 describes the following configuration: "an anchor bolt driving tool which is connected to a tool driver via a tool connecting member and receives a driving force of the tool driver to open a hole for driving an anchor bolt in a building material and drive the anchor bolt into the hole, the anchor bolt driving tool integrally comprising: a held portion detachably held by the tool coupling member; a bit part extending in one direction from the held part and having a shape in which a hole for driving the anchor bolt is opened in the building material by a driving force from the tool driver rotating about an axis parallel to a longitudinal direction of the bit part; and a hammer portion extending from the held portion to a side opposite to the bit portion, and configured to strike the anchor bolt by applying a vibration force in a direction parallel to a central axis of the bit portion from the tool driver, thereby driving the anchor bolt into the hole.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2009-264007
Disclosure of Invention
Problems to be solved by the invention
Since driving of an anchor bolt is generally performed on an unstable and narrow scaffold, it is necessary to improve workability and safety. Further, in recent years, there has been a problem that the number of construction workers is reduced due to reduction in the number of seeds and aging, and it is necessary to save labor for construction work and improve workability.
In order to perform the anchor bolt driving, a worker must support the anchor bolt with one hand so as to align the anchor bolt with a predetermined hole in the wall surface and operate the anchor bolt driving apparatus with the other hand. Therefore, the hand supporting the anchor bolt may be hit by mistake or the anchor bolt may be dropped if the support of the anchor bolt is insufficient.
In addition, in general, when driving an anchor bolt, a driving operation is performed such that a nut is not attached to a bolt portion (male screw portion) of the anchor bolt, and after the driving operation is completed, a nut is attached to the bolt portion (male screw portion) to perform a fastening operation of the nut. When using the anchor bolt driving tool, from the viewpoint of reducing man-hours: a plurality of connected bodies each having a nut attached to a bolt portion of an anchor bolt are prepared in advance, and the anchor bolt is driven using the anchor bolt with the nut attached thereto. However, there are the following problems: the nut attached to the bolt portion of the anchor bolt is accidentally moved in the direction of the wall surface by the striking vibration of the anchor bolt striking device, and if the nut comes into contact with the wall surface before the anchor bolt is driven to a predetermined depth, the anchor bolt cannot be driven any further.
The anchor bolt driving tool described in patent document 1 is provided with a drill on one side and a hammer face on one side, and thus is configured as a tool capable of performing the opening of the anchor bolt driving hole and the anchor bolt driving operation with a single tool. In addition, in patent document 1, no consideration is given to the case where a nut is previously attached to the bolt portion of the anchor bolt when driving the anchor bolt, and no consideration is given to the rotation of the nut when the nut is previously attached to the bolt portion of the anchor bolt.
An object of the present invention is to provide an anchor bolt driving rod and an anchor bolt driving method, which can drive an anchor bolt, which is provided with a nut at an external thread portion in advance, into a wall surface to a predetermined depth without supporting the anchor bolt by a hand of an operator when driving the anchor bolt into the wall surface using a driving device.
Means for solving the problems
The anchor driving rod and the anchor driving method according to the present invention are configured as described in the claims to solve the above problems.
Specifically, the anchor bolt driving rod is connected to a striking device, for example, and drives an anchor bolt with a nut into a hole in a wall surface, and includes a holding portion for holding the anchor bolt and a connecting portion connected to the striking device, and the holding portion includes a nut rotation preventing mechanism for preventing rotation of the nut in a state where the anchor bolt is held. The nut rotation preventing mechanism includes, for example, a pin plug, and a portion of an outer periphery of a pin of the pin plug, which is closest to a longitudinal axis of the grip portion, is located outside an inscribed circle of the nut when the grip portion grips the anchor bolt, and is located inside an inscribed circle of the nut.
In the anchor bolt driving method, for example, an anchor bolt is loaded in advance in a state where a nut is attached to an anchor bolt stand, and the anchor bolt is gripped from the anchor bolt stand by a gripping portion of the anchor bolt driving rod and moved to a position of a hole in a wall surface, so that the anchor bolt is driven into the hole through the anchor bolt driving rod by a striking device.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, when driving the anchor bolt into the wall surface using the driving device, the anchor bolt can be driven into the wall surface to a predetermined depth without supporting the anchor bolt by a hand of an operator and with a nut previously attached to the external thread portion.
Problems, structures, and effects other than those described above can be understood by the following description of the embodiments.
Drawings
Figure 1 is a perspective view of an anchor bolt driving rod according to an embodiment of the present invention.
Figure 2 is an elevation view of an anchor bolt driving rod according to an embodiment of the present invention.
Figure 3 is a side view of an anchor bolt driver bar according to an embodiment of the present invention.
Fig. 4 is a side view showing an example of the anchor bolt.
Fig. 5 is a perspective view showing a state in which an anchor is held by an anchor driving rod according to an embodiment of the present invention.
Figure 6 isbase:Sub>A cross-sectional view of the anchor driving rod taken along linebase:Sub>A-base:Sub>A of figure 3.
Figure 7 is a cross-sectional view of the anchor driving rod taken along line B-B of figure 2.
Figure 8 is a cross-sectional view of the anchor driving rod taken along the line C-C of figure 2.
Fig. 9 is a front view showing a state in which an anchor bolt is inserted into a grip portion of an anchor bolt driver rod according to an embodiment of the present invention (a case in which one corner of a nut attached to the anchor bolt is located between two pin plugs).
Fig. 10 is a front view showing a state in which an anchor bolt is inserted into a grip portion of an anchor bolt driver rod according to an embodiment of the present invention (in a case where a nut attached to the anchor bolt is positioned directly above one of the pin plugs and the pin plug is pressed down).
Fig. 11 is a perspective view showing a state in which an anchor bolt is inserted into a grip portion of an anchor bolt driving rod (the state shown in fig. 10) according to an embodiment of the present invention.
Fig. 12 is a view showing a state in which the anchor driving rod is connected to the driving device and the anchor is held by the anchor driving rod.
FIG. 13 is a view of an anchor block loaded with a plurality of anchors.
Fig. 14 is a flowchart showing a basic flow of an anchor driving method using an anchor driving rod according to an embodiment of the present invention.
Fig. 15 is a schematic diagram showing an operation state of the step S3 shown in fig. 14.
Fig. 16 is a schematic diagram showing an operation state from step S4 to step S7 shown in fig. 14.
In the figure:
1-anchor bolt; 2-external thread part; 3, a nut; 4-three-sided wedge; 10-a striking device; 20-an anchor bolt platform; 30-wall surface; 31-pre-set holes; 100-an anchor bolt driving rod; 101-a grip; 102-a connecting shaft; 103-hollow part; 104-ball plug; 105a, 105 b-pin plugs.
Detailed Description
First, before describing embodiments of the present invention in detail, the reason why the present invention is made will be described. The present invention is produced in the course of research on the automation of the driving of the anchor bolt by the robot arm, but is not limited to the automation of the driving of the anchor bolt by the robot arm, and can be applied to the driving of the anchor bolt by a worker.
As described above, since the anchor bolt driving is generally performed on an unstable and narrow scaffold, it is necessary to improve workability and safety. In addition, in recent years, there is a problem that the number of construction workers is reduced due to reduction in the number of seeds and aging, and it is necessary to save labor and improve workability in construction work.
Against this background, the present inventors have studied an automated operation for driving an anchor bolt using a robot or the like. As an example of a configuration for performing an automatic operation of driving an anchor bolt by using a robot, a striking device (striking part) is provided at a distal end portion of a robot arm, and the driving operation of the anchor bolt is performed by the striking device (striking part). In such a structure, as a matter that needs to be studied when automating the anchor bolt driving work, how to hold the anchor bolt to be driven is exemplified. Although it is conceivable to perform the anchor bolt driving operation by using both arms, i.e., by holding the anchor bolt with one arm and holding the striking device (striking part) with the other arm, by a robot in a manner simulating the anchor bolt driving operation performed by an operator, the robot becomes complicated because of the necessity of performing the coordinated operation by both arms, and the like. Therefore, if the anchor bolt driving rod (gripping portion) capable of gripping the anchor bolt is configured to be connected to the striking device (striking portion), the driving operation can be performed by the single-arm robot, and the robot can be prevented from being complicated (if the robot can be made single-arm, the anchor bolt striking device can be supported by both hands even during the driving operation by the operator). Therefore, the present inventors have proposed an anchor driving device in japanese patent application No. 2019-223646. In this anchor bolt driving device, an anchor bolt striking device is provided at a distal end portion of the arm, and the anchor bolt striking device is constituted by a striking portion and an anchor bolt holding portion connected to the striking portion. By adopting the structure in which the holding part of the holding anchor bolt is connected with the striking part, the anchor bolt driving operation can be performed by one mechanical arm without complicating the structure.
As described above, generally, when driving the anchor bolt, the driving operation is performed without attaching the nut to the external thread portion of the anchor bolt, and the nut is attached after the driving operation is completed, and the fastening operation of the nut is performed. However, conventionally, the operation of attaching the nut to the male screw portion by a robot after driving the anchor bolt has complicated the robot. In the anchor bolt driving operation by the operator, the driving operation of the anchor bolt can be performed by using the anchor bolt to which the nut is attached, thereby reducing the number of man-hours. However, according to the study of the present inventors, the following problems have been found: in the case of simply holding the anchor bolt at the anchor bolt holding portion, the nut attached to the male screw portion of the anchor bolt is accidentally moved in the direction of the wall surface by the striking vibration of the anchor bolt striking portion, and if the nut comes into contact with the wall surface before the anchor bolt is driven to a predetermined depth, the anchor bolt cannot be driven any further. This is particularly disadvantageous for automated operation of driving the anchor bolt using a robot. Therefore, the present inventors have proposed the following findings: in the case of using an anchor bolt with a nut suitable for improving workability in the driving operation of the anchor bolt, it is an important problem to provide a mechanism for preventing the nut from rotating in the anchor bolt holding portion so that the anchor bolt can be driven into the wall surface to a predetermined depth.
The anchor driving rod and the anchor driving method using the same according to the present invention will be described below based on the illustrated embodiments. In the drawings, the same components are denoted by the same reference numerals, and the description thereof will be omitted when repeated. In the present embodiment, the "anchor driving rod" corresponds to a holding portion for holding an anchor in japanese patent application No. 2019-223646. In the following description, the grip portion of the grip anchor of the present embodiment corresponds to the portion of the grip anchor (portion other than the connecting shaft of the grip portion) in japanese patent application No. 2019-223646. That is, in the present embodiment, the "anchor driving rod" is constituted by a connecting shaft connected to a striking device (anchor striking portion) and a holding portion for holding an anchor (details will be described later).
First, fig. 4 shows an example of the anchor bolt 1 which is driven into a predetermined hole formed in a wall surface by the anchor bolt driving rod 100 according to the present embodiment. Fig. 4 is a schematic view (side view) of the anchor bolt 1 used in the description of the present embodiment. The anchor bolt 1 of fig. 4 is a wedge-type anchor bolt, but the form is not limited as long as it is an anchor bolt of the driving-in type. In the example of the anchor bolt structure shown in fig. 4, the anchor bolt 1 is composed of a male screw portion 2 to which a nut 3 is screwed on the head, and a three-sided wedge 4 which is annularly attached to the insertion end side of the anchor bolt 1 and can be expanded. When driving the anchor bolt 1, the anchor bolt 1 is usually driven by a hammer tool or the like and inserted into a predetermined hole having a wall surface with the same diameter as that of the anchor bolt 1, and the nut 3 is tightened to expand the three-sided wedge 4 in the wall surface to fix the anchor bolt 1. Conventionally, when the anchor bolt 1 is inserted by striking with a hammer tool or the like, the nut 3 is not previously attached to the male screw portion 2, but the nut 3 is attached to the male screw portion 2 after the striking insertion. In the present invention, when the anchor bolt 1 is hammer-inserted, the nut 3 is mounted on the male screw portion 2 in advance.
< Structure of anchor bolt driving-in rod >
Next, the structure of the anchor bolt driving rod 100 according to the embodiment of the present invention will be described. A perspective view, a front view, and a side view of an anchor bolt driving rod 100 according to an embodiment of the present invention are shown in fig. 1, 2, and 3, respectively, and a schematic view of a state in which an anchor bolt 1 is gripped by the anchor bolt driving rod 100 is shown in fig. 5, and a mechanism for preventing an unexpected rotation of a nut attached to the anchor bolt of the anchor bolt driving rod 100 is shown in detail in fig. 6 and 7 and in fig. 8 to 11. Fig. 12 shows a state in which the anchor driving rod 100 is connected to the striking device 10 and the anchor 1 is held by the anchor driving rod 100.
As shown in fig. 1 and 3, the anchor bolt-driving rod 100 of the present embodiment includes a grip 101 for gripping the anchor bolt 1 and a connecting shaft 102, which is a connecting portion of the anchor bolt-driving rod 100 with the striking device 10. Further, as an example of the striking device 10 of the present embodiment, a hammer drill having a striking mode capable of vertically applying a striking force to the anchor bolt driving rod 100 is set. As shown in fig. 5, the connecting shaft 102 and the longitudinal shaft of the anchor bolt 1 gripped by the grip 101 are connected to each other so as to be held coaxially. Since the connecting shaft 102 of the anchor driving rod 100 is generally coaxially connected to the striking shaft of the striking device 10, the striking force can be transmitted to the anchor bolt 1 via the anchor driving rod 100 by operating the striking shaft of the striking device 10 in the driving direction, thereby driving the anchor bolt 1.
The grip 101 of the anchor bolt driver 100 will be described in detail.
First, a mechanism of the holding anchor bolt of the holding part 101 will be described. A hollow portion 103 into which the male screw portion 2 of the anchor bolt 1 is inserted is formed at the center in the longitudinal direction of the grip portion 101 of the anchor bolt driving rod 100. The hollow portion 103 is formed to have an inner diameter slightly larger (for example, about 0.1 to 0.4 mm) than the diameter of the held anchor bolt 1 (the outer diameter of the male screw portion 2). When performing driving work using anchor bolts 1 having different diameters, a plurality of anchor bolt driving rods 100 each having a hollow portion 103 corresponding to the diameter of the anchor bolt 1 to be used are prepared and used in a differentiated manner. As shown in fig. 2 and 6, the ball plugs 104 are located at positions equally spaced by 120 degrees with respect to the cross section of the anchor bolt 1 to be gripped, and are arranged to support the anchor bolt 1 at three points. Further, fig. 6 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3. As shown in fig. 7, the three-point ball plunger group is provided at three positions in front, center, and rear of the hollow portion 103. The number of the three-point ball plungers 104 is not particularly limited, and at least one ball plunger may be provided. Further, fig. 7 is a sectional view taken along line B-B of fig. 2.
With such a configuration of the grip 101 of the anchor bolt 1, the longitudinal axis of the anchor bolt 1 and the connecting shaft 102 (striking shaft) of the anchor bolt driver 100 can be positioned on the same axis. The ball plunger 104 is composed of a cylindrical housing, a spring disposed in the housing, and a ball provided at the tip of the spring, and is configured such that when a load is applied to the ball, the ball is retracted into the housing, and when the load is removed, the ball is protruded to the original position by the restoring force of the spring in the housing. A plurality of holes for installing the ball plungers 104 (nine screw holes in total provided at three positions in the circumferential direction and three positions in the longitudinal direction in the present embodiment) are formed in the grip portion 101. In this mechanism, when the anchor bolt 1 is inserted into the hollow portion 103 of the grip portion 101, the anchor bolt 1 is held by a force of pressing the balls at the tips of the plurality of ball plungers 104 in the central axis direction, and the balls are fitted into the valley portions of the male thread portion 2 of the anchor bolt 1, thereby obtaining an appropriate gripping force. When the anchor bolt 1 is attached to the anchor bolt driving rod 100, the head of the male screw portion 2 of the anchor bolt 1 contacts the bottom surface 103a of the hollow portion 103 of the grip 101. The force when striking the anchor bolt 1 is transmitted from the bottom surface 103a of the hollow portion 103 of the grip 101 to the anchor bolt 1 (the head of the male threaded portion 2), and a large load is not applied to the ball plug 104 itself. Further, in order to allow the head of the male screw portion 2 of the anchor bolt 1 to contact the bottom surface 103a of the hollow portion 103 of the grip portion 101 when the anchor bolt 1 is attached to the anchor bolt driver 100, the position of the nut 3 attached to the anchor bolt 1 is adjusted as follows: the length L (see fig. 4) from the surface on the head side of the nut 3 to the head of the male screw part 2 is equal to or greater than the depth of the hollow part 103 (the length from the bottom surface 103a of the hollow part to the anchor-inserting side surface 101a of the grip part 101 (the surface facing the nut 3 when gripping the anchor). In other words, the attachment position of the nut 3 to the anchor bolt 1 is adjusted as follows: when the anchor bolt 1 is gripped by the grip 101, the nut 3 does not contact the grip 101 until the tip of the anchor bolt facing the grip 101 contacts the bottom surface 103a of the grip 101.
The mechanism of the holding anchor bolt of the holding part 101 is not limited to the structure using the ball plunger. In the case of a metal anchor bolt, for example, the anchor bolt may be held (gripped) by an anchor bolt driver using a magnetic force.
Next, a mechanism for preventing the nut attached to the anchor bolt from rotating unexpectedly due to vibration at the time of driving the anchor bolt will be described.
As described above, the anchor bolt driving work according to the present invention is performed in a state where the nut is previously installed on the anchor bolt. Thereby reducing the working hours of driving the anchor bolt. However, according to the studies of the present inventors, the following problems have been found: the nut attached to the male screw portion of the anchor bolt is accidentally moved in the direction of the wall surface by the striking vibration of the striking device of the anchor bolt, and the nut comes into contact with the wall surface before the anchor bolt is driven to a predetermined depth, so that the anchor bolt cannot be driven any further.
Therefore, in the present embodiment, a mechanism (nut rotation prevention mechanism) for preventing rotation of the nut during the striking operation is provided in the grip portion 101 of the anchor bolt driver rod 100. As a mechanism for preventing the nut from being accidentally rotated in the present embodiment, the grip 101 is provided with the pin stoppers 105a and 105b.
As shown in fig. 8, the pin stoppers 105a and 105b are provided in pin stopper insertion holes provided along the longitudinal direction of the grip 101. Further, fig. 8 is a sectional view taken along line C-C of fig. 2. The pin plugs 105a and 105b are similar to the ball plug 104, and include a cylindrical housing (pin plug main body), a spring disposed in the housing, and a retractable pin provided at a tip end of the spring, and have a pin retractable structure in which: the retractable pin is sunk into the housing when a load is applied thereto, and is protruded to a home position by a restoring force of a spring in the housing when the load is removed. As shown in fig. 3, the pin plugs 105a and 105b are fixed to the pin plug insertion holes at two positions by fixing screws 105 c. The fixing of the pin plugs 105a and 105b in the pin plug insertion holes may be performed by an adhesive, press fitting, or the like. The ring-shaped portion 101b of the grip 101, which projects beyond the anchor insertion side surface 101a, has a function of protecting the plugs 105a and 105b when the anchor driving rod 100 is dropped. But the ring portion 101b may be absent. When the anchor bolt driving work is performed automatically using the robot, the robot needs to recognize the ring-shaped portion 101b when the anchor bolt 1 is attached to the grip portion 101, and therefore, the absence of the ring-shaped portion 101b is advantageous for the automatic work using the robot.
Fig. 9 is a view of a state in which the anchor 1 is inserted into the grip portion 101 of the anchor driving rod 100, as viewed from the front (anchor insertion side). As shown in fig. 9, the grip portion 101 includes the pin stoppers 105a, 105b, and the portions of the pin stoppers 105a, 105b closest to the longitudinal axis of the grip portion 101 (the portions of the outer peripheries of the pin stoppers 105a, 105b closest to the longitudinal axis of the grip portion 101) are arranged outside the inscribed circle 3a of the nut 3 when the anchor bolt 1 is gripped and inside the circumscribed circle 3b of the nut 3. Similarly to the diameter of the hollow portion, when performing driving work using anchor bolts 1 having different sizes of the attached nuts 3, a plurality of anchor bolt driving rods 100 having pin plugs arranged at positions corresponding to the sizes of the attached nuts are prepared and used in a differentiated manner.
Fig. 9 shows a state in which one corner of the nut 3 attached to the anchor bolt 1 is located between the pin stoppers 105a and 105b and the expansion pins of the pin stoppers 105a and 105b are expanded (have a natural length). When vibration acts on the anchor bolt 1 at the time of driving-in of the anchor bolt, any of these expansion pins comes into contact with one side surface of the nut 3, and therefore the expansion pin causes an obstacle so that the nut 3 cannot be rotated any further.
As shown in fig. 10, even when the bolt 1 is inserted into the holding portion 101 and the nut is positioned directly above the pin plug 105a, the expansion pin of the pin plug 105a contracts so that the pin plug 105a does not interfere with the nut 3 attached to the bolt 1, and therefore, the holding of the bolt 1 by the holding portion 101 (hollow portion 103) is not hindered. When the nut 3 starts to rotate due to vibration during driving of the anchor bolt, the corner position of the nut 3 is displaced, and the telescopic pin of the pin plug 105a that has contracted before expands to the original natural length position. Therefore, the state shown in fig. 9 is achieved, and the pin plug 105a or the pin plug 105b comes into contact with one side surface of the nut 3, so that the nut 3 can be prevented from being accidentally rotated.
Fig. 11 is a diagram of a state of fig. 10 as viewed obliquely. As shown in fig. 11, when the length of the expansion pin in the unloaded state of the pin plug 105a and the pin plug 105b is about the height of the nut 3, even if the anchor bolt moves more or less forward and backward due to vibration during driving of the anchor bolt, the side surface of the nut does not come off from the expansion pin of the pin plug 105a and the pin plug 105b, and therefore this embodiment is preferable. The length of the expansion pin in the unloaded state of the pin plugs 105a and 105b is set in consideration of the position of the nut 3 attached to the anchor bolt 1 when the anchor bolt 1 is attached to the anchor bolt driving rod 100.
In addition, although the case where two pin plugs are provided in the present embodiment has been described, at least one of the pin plugs can achieve the above-described functions. But in the case of one the following needs to be noted compared to the case of two: when the nut 3 is first contracted, the nut is rotated by vibration at the time of driving the anchor bolt, the corner position of the nut 3 is displaced, the telescopic pin of the pin plug contracted before is extended to the original natural length position, and the angle by which the nut is rotated before the pin plug comes into contact with one side surface of the nut 3 is multiplied. This means that: in the case where there are two pin plugs, if the two pin plugs are simultaneously at positions to be pushed (compressed) by the nut when the anchor bolt 1 is gripped by the gripping portion 101, it can be said that the two pin plugs are close to one pin plug, and therefore, it is preferable to dispose the two pin plugs at positions not to be simultaneously pushed (compressed) by the nut. Further, a pin plug may be provided over the entire anchor bolt insertion side surface 101a of the grip 101, like an universal socket wrench. At this time, the nut is not substantially rotated by the vibration at the time of driving the anchor bolt.
Further, the mechanism for preventing the nut attached to the anchor bolt from being accidentally rotated by the vibration generated when the anchor bolt is driven is not limited to the use of the pin plug. For example, the inside of the annular portion 101b of the grip 101 may be polygonal so that the vertex of the outer shape of the nut 3 comes into contact with the side of the polygon when the nut 3 is rotated, thereby preventing further rotation of the nut 3. In the case of a metal nut, for example, the rotation of the nut 3 may be suppressed by using a magnetic force.
In the present embodiment described above, the anchor bolt driving rod 100 can be configured so as not to complicate the mechanism for gripping the anchor bolt 1 and the mechanism for preventing the rotation of the nut 3 attached to the anchor bolt 1.
Further, by configuring the anchor bolt driver bar 100 as in the present embodiment, it is not necessary to support the anchor bolt 1 with one hand to perform a series of operations of holding and driving the anchor bolt 1, and the operations can be performed safely and efficiently. That is, since the anchor bolt 1 can be gripped and supported by the anchor bolt driving rod 100 itself, the striking device 10 can be supported by both hands at the time of driving the anchor bolt, and the anchor bolt 1 can be prevented from dropping down to perform the work safely. Further, since the nut 3 can be prevented from being accidentally rotated by vibration during driving of the anchor bolt, the work of attaching and detaching the nut 3 before and after the work and the work of suspending the driving work can be avoided, which contributes to improvement of workability.
Further, when the anchor bolt 1 is gripped, the gripping can be performed regardless of the initial angle of the nut 3 attached to the anchor bolt 1, and thus the anchor bolt driving work can be automated easily using a robot arm.
Construction method for driving anchor bolt
Next, an anchor driving method for driving the anchor 1 into the preset hole 31 formed in the wall surface 30 using the anchor driving rod 100 will be described with reference to fig. 13 to 16. Fig. 13 shows an anchor bolt driving method according to the present embodiment, fig. 14 is a flowchart showing a basic flow of the anchor bolt driving method using the anchor bolt driving stick 100, and fig. 15 and 16 are schematic diagrams showing an operation state in a part of steps of the anchor bolt driving method according to the present embodiment.
First, a plurality of anchor bolts 1 are loaded into the anchor stand 20 shown in fig. 13 (step S1). The anchor 1 with the nut 3 attached is loaded in the anchor stand 20. At this time, the position of the nut 3 on the male threaded portion 2 of the anchor bolt 1 is adjusted so that the length L shown in fig. 4 is equal to or greater than the depth of the hollow portion 103. In addition, at this time, the position of the nut 3 is also adjusted to the following positions: and a position where the anchor bolt 1 is in contact with the side surface of the expansion pin in the unloaded state of the pin plug when the anchor bolt is held by the anchor bolt driving rod. In order to easily ensure a uniform predetermined length L, the anchor bolt loading height H can be adjusted when the anchor bolt 1 is loaded into the anchor stand 20. The anchor bolt loading height H is a distance from the tip of the anchor bolt 1 to the bottom surface of the nut 3. When the anchor bolt 1 is loaded into the anchor stand 20, the tip of the anchor bolt 1 is disposed so as to contact the lower surface of the anchor stand 20, and the bottom surface of the nut 3 is disposed so as to contact the upper surface of the anchor stand 20. Thereby ensuring that the predetermined length L of each anchor bolt 1 is uniform.
Next, the anchor driving rod 100 is connected to the tip of the striking device 10 (step S2). Next, the loaded anchor bolt 1 is gripped and lifted from the anchor stand 20 (step S3). Fig. 15 (a), (b), and (c) are schematic diagrams showing the operation state of step S3.
Thereafter, the striking device 10 is moved to the vicinity of the preset hole 31 of the wall surface 30 with the anchor bolt 1 held, and the tip end portion of the anchor bolt 1 is inserted into the preset hole 31 (step S4). Then, the driver 10 is driven to start driving the anchor bolt 1 through the anchor bolt driving rod 100 (step S5). When the anchor bolt 1 is driven to a predetermined depth (for example, 80mm or more) (step S6), the striking device 10 is moved to the driving start position of the anchor bolt 1 (step S7). At this time, the anchor bolt 1 driven into the preset hole 31 of the wall surface 30 is not easily pulled out due to friction with the wall surface 30, and the anchor bolt 1 can be separated from the grip 101 of the anchor bolt driving rod 100. Fig. 16 (a), (b), and (c) are schematic diagrams showing the operation states of the above-described steps S4 to S7.
As described above, the anchor driving operation for driving the anchor 1 into the preset hole 31 provided in the wall surface 30 is completed using the anchor driving rod 100. In the anchor driving method shown in fig. 14, the anchor stand 20 is used, but this is not necessarily the case. The anchor bolt stand 20 is used to facilitate gripping of the anchor bolt 1 by the gripping portion 101 of the anchor bolt driver rod 100 to improve workability. Therefore, when the anchor stand 20 is not provided, the operation of inserting the anchor bolt 1 into the holding portion 101 of the anchor bolt and holding the same may be manually performed.
The above-described anchor bolt driving operation is not limited to manual operation, and is also applicable to a case where the striking device 10 to which the anchor bolt driving rod 100 is connected is attached to a robot.
The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the above-described embodiments are described in detail to facilitate understanding of the present invention, but are not limited to having all of the described configurations. In addition, a part of the structure of one embodiment may be replaced with the structure of another embodiment, or the structure of another embodiment may be added to the structure of one embodiment. In addition, some of the structures of the embodiments may be added, deleted, or replaced with other structures.
In addition, although claims in the referenced form are recited in the singular for easy understanding of the claims in the referenced form, the present invention encompasses both the form in which plural claims are recited (plural references) and the form in which at least one plural reference is recited in a claim in the referenced form.
Claims (8)
1. An anchor bolt driving rod connected to a striking device and driving an anchor bolt with a nut into a hole in a wall surface,
the anchor bolt driving rod as described above is characterized in that,
the anchor bolt driving rod includes a holding portion for holding the anchor bolt and a connecting portion connected to the striking device,
the holding part is provided with a pin plug as a nut rotation preventing mechanism for preventing the nut from rotating under the state that the anchor bolt is held,
the pin plug is configured to protrude toward a side of the holding portion facing the nut when the holding portion holds the anchor bolt, and is configured such that the pin is sunk into the pin plug body as the nut approaches the side of the holding portion facing the nut,
the portion of the outer periphery of the pin plug closest to the longitudinal axis of the grip portion is located outside the inscribed circle of the nut when the grip portion grips the anchor bolt and inside the circumscribed circle of the nut.
2. The anchor driving rod as set forth in claim 1,
the pin plug is provided with two pin plugs which are arranged in parallel,
the portions of the outer peripheries of the pins of the two pin plugs that are closest to the longitudinal axis of the gripping portion are both located outside the inscribed circle of the nut when the gripping portion grips the anchor bolt and inside the circumscribed circle of the nut,
the two pin plugs are arranged at positions where the two pin plugs are not simultaneously pushed in by the nut when the holding portion holds the anchor bolt.
3. The anchor bolt driver bar as set forth in claim 2,
the holding part has a hollow part formed at the center in the longitudinal direction thereof and having a diameter larger than that of the external thread part of the anchor bolt, and ball plugs are provided at equal intervals with respect to the cross section of the anchor bolt, and when the holding part holds the anchor bolt, the external thread part of the anchor bolt is supported at three points by the ball plugs.
4. An anchor driving method using the anchor driving bar according to claim 1, wherein the anchor driving bar is a bar-shaped member,
the anchor bolt is loaded in advance in the anchor bolt stand with the nut attached,
the anchor bolt is held from the anchor bolt stand by the holding portion of the anchor bolt driver rod,
and driving the anchor bolt into the hole through the anchor bolt driving rod by the driving device while moving to the position of the hole in the wall surface.
5. An anchor driving construction method using the anchor driving rod according to any one of claims 1 to 3, characterized in that,
the anchor bolt is loaded in advance in the anchor bolt stand with the nut attached,
the anchor bolt is held from the anchor bolt stand by the holding portion of the anchor bolt driving-in rod,
and driving the anchor bolt into the hole through the anchor bolt driving rod by the driving device while moving to the position of the hole in the wall surface.
6. The anchor driving method as set forth in claim 5,
the anchor bolt loaded in the anchor bolt stand is configured such that, when the anchor bolt is gripped by the gripping portion, the side surface of the pin in the unloaded state of the pin plug can be brought into contact with the nut, thereby adjusting the attachment position of the nut with respect to the anchor bolt.
7. The anchor driving method as set forth in claim 6,
the anchor bolt loaded in the anchor bolt stand is configured to adjust an attachment position of the nut with respect to the anchor bolt so that the nut does not come into contact with the holding portion until a distal end portion of the anchor bolt facing the holding portion comes into contact with a bottom surface of the holding portion when the anchor bolt is held by the holding portion.
8. An anchor block for the anchor driving method according to claim 5,
the above-mentioned anchor block is characterized in that,
the attachment position of the nut with respect to the anchor bolt can be adjusted so that the side surface of the pin in the unloaded state of the pin plug can contact the nut when the anchor bolt is gripped by the gripping portion, and so that the nut does not contact the gripping portion until the tip portion of the anchor bolt facing the gripping portion contacts the bottom surface of the gripping portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-050584 | 2020-03-23 | ||
| JP2020050584A JP7341092B2 (en) | 2020-03-23 | 2020-03-23 | anchor driving rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113427433A CN113427433A (en) | 2021-09-24 |
| CN113427433B true CN113427433B (en) | 2023-02-24 |
Family
ID=77753420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110242289.8A Active CN113427433B (en) | 2020-03-23 | 2021-03-04 | Anchor bolt driving rod and anchor bolt driving construction method using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7341092B2 (en) |
| CN (1) | CN113427433B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577453U (en) * | 1992-03-18 | 1993-10-22 | 三幸工業株式会社 | Anchor bolt driving rod |
| CN208669335U (en) * | 2018-08-27 | 2019-03-29 | 中铁十二局集团电气化工程有限公司 | Anchor bolt squeezes into equipment in a kind of subway tunnel being moved easily |
| JP3225505U (en) * | 2019-12-25 | 2020-03-12 | 株式会社Ｉｋｋ | Anchor positioning mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3940320C1 (en) * | 1989-12-06 | 1991-06-13 | Lorenz 8197 Koenigsdorf De Stoeger | Socket spanner head with hexagonal nut cavity - which has circular base with dia. corresp. to max nut dia. and slidable pin(s) |
| JPH1054142A (en) * | 1996-08-09 | 1998-02-24 | Takasago Thermal Eng Co Ltd | Anchor pin driving device |
| JP5348420B2 (en) * | 2009-12-09 | 2013-11-20 | ユニカ株式会社 | Anchor driving tool |
| US8984992B2 (en) * | 2012-10-25 | 2015-03-24 | Abb Technology Ltd. | Socket with nut or bolt holding structure |
| JP7360923B2 (en) * | 2019-12-11 | 2023-10-13 | 株式会社日立ビルシステム | Anchor driving device and anchor driving method using the same, elevator rail installation device and elevator rail installation method |
-
2020
- 2020-03-23 JP JP2020050584A patent/JP7341092B2/en active Active
-
2021
- 2021-03-04 CN CN202110242289.8A patent/CN113427433B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577453U (en) * | 1992-03-18 | 1993-10-22 | 三幸工業株式会社 | Anchor bolt driving rod |
| CN208669335U (en) * | 2018-08-27 | 2019-03-29 | 中铁十二局集团电气化工程有限公司 | Anchor bolt squeezes into equipment in a kind of subway tunnel being moved easily |
| JP3225505U (en) * | 2019-12-25 | 2020-03-12 | 株式会社Ｉｋｋ | Anchor positioning mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113427433A (en) | 2021-09-24 |
| JP2021147934A (en) | 2021-09-27 |
| JP7341092B2 (en) | 2023-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4932819A (en) | Pin for fixing a panel | |
| US8166624B2 (en) | Linearly extendible impact anchor driving pole and anchor system | |
| WO1991019860A1 (en) | Coupled drive rods for installing ground anchors | |
| RU2747555C2 (en) | Mill lining installation | |
| US8286324B2 (en) | Blind rivet and associated device | |
| CN113427433B (en) | Anchor bolt driving rod and anchor bolt driving construction method using same | |
| JP7360923B2 (en) | Anchor driving device and anchor driving method using the same, elevator rail installation device and elevator rail installation method | |
| EP0565502A1 (en) | Pipe handling equipment and method for a rock drilling machine | |
| US11951577B2 (en) | Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements | |
| JP7087734B2 (en) | Coupling pin attachment / detachment jig and connection pin attachment / detachment method | |
| JP2011167791A (en) | Tool for rotating fastening member | |
| JP4491204B2 (en) | Fastener fastening device | |
| JPH02212078A (en) | Mounting and swaging tool of insert | |
| KR20180065740A (en) | Anbil for Power Tools | |
| US5172612A (en) | Socket holder | |
| US6381788B2 (en) | Nailing tool capable of initially starting a connecting member with a tip | |
| JP2006297508A (en) | Extended coupling tool for fastening and loosening bolt or the like | |
| US4889191A (en) | Gooseneck assembly for rock drill and method for inserting friction rock stabilizer | |
| JP6951815B1 (en) | How to install equipment using anchor bolts | |
| JPH09314479A (en) | Drawing device for positioning pin | |
| CN114425771A (en) | Anchor driving tool, anchor driving method and anchor driving unit | |
| CN220922280U (en) | Two-way cartridge valve puller | |
| CN212665916U (en) | Quick assembly disassembly tool of wire rope checkpost | |
| CN220445662U (en) | Device for limiting and assembling bolts | |
| CN210650542U (en) | Plug-in type sleeve hammering assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |