JP5735152B1 - Drilling device holder - Google Patents

Abstract

An object of the present invention is to reduce the adverse effects of vibration of a handy type drilling device on the health of workers. A holding device includes a base, a support column extending upward from the base, a frame attached to the support column, a hanger extending from the support column to the left and right, and a hanger. An elastic rope 19 having both ends tied to the end is provided. The frame 13 holds the main body 91 that moves downward as the drilling proceeds while allowing the movement. The elastic rope 19 presses the drilling device 9 downward. During the drilling operation, the hole drilling device 9 is held by the frame 13 while being pressed downward by the elastic rope 19. Therefore, the worker does not need to hold and press the drilling device 9 during the drilling operation and is not subjected to vibration of the drilling device 9. [Selection] Figure 4

Description

  The present invention relates to a drilling device.

  There is a handy type drilling device that can be handled manually by workers. In general, a handy type drilling device has a diameter of several centimeters and a depth of several centimeters to several tens of centimeters for a hard object such as rock or concrete. Or, it is used when making a hole) regardless of whether it is non-through or not.

  A technique for improving the working efficiency of a handy type drilling device has been proposed. For example, Patent Document 1 proposes a fixing device for preventing inaccurate drilling due to misalignment of holes or excessive digging when excavating a foundation bolt hole or the like on a concrete floor surface with a hammer or drill. Yes.

  The fixing device described in Patent Document 1 includes an L-shaped base member that comes into contact with a concrete floor surface, a guide rail member that is vertically provided at a corner of the base member and includes a depth adjustment scale at a lower portion thereof, And a slide member that slides up and down on the guide rail member and holds the hammer / drill freely, and a depth adjustment stopper that adjusts the position of the slide member on the guide rail member. The driller who uses the fixing device described in Patent Document 1 fixes the fixing device to the drilling position on the concrete floor by placing a stone foot, etc., attaches the hammer drill to the slide member, and moves the hammer drill downward Excavation work while sliding.

  According to the fixing device described in Patent Document 1, since the excavation position of the hammer / drill is guided by the guide rail member, the positional deviation of the holes is hardly generated. Further, according to the fixing device described in Patent Document 1, when the bit of the hammer / drill reaches a suitable depth, the slide member comes into contact with the depth adjustment stopper, and further excavation is prevented. It is hard to cause too much. Therefore, the driller can perform accurate drilling without carefully performing the work, and work efficiency is improved.

Japanese Utility Model Publication No. 3-96189

  When a worker performs a drilling operation using a handy type drilling device, the worker receives vibration from the drilling device. If an operator continues to receive this vibration for a long time, it may be harmful to health.

  An object of this invention is to reduce the bad influence which the vibration of a handy type drilling apparatus has on a worker's health.

To achieve the above object, the present invention provides a drilling apparatus for drilling a drilling object, during drilling, a holding means for holding the self-supporting without interfering with the downward movement of the elastic member toward the drilling apparatus on the weight of said holding means through, and a pressing means for pressing against the drilling device to the drilling object, the holding device of the drilling device is proposed as a first embodiment.

Further, the present invention is the holding device according to the first aspect, wherein the holding means includes a base placed on the drilling target and a support column extending upward from the base. A configuration in which the holding device that holds the hole drilling device and slides on the support column is proposed as a second aspect.

Moreover, this invention is a holding tool concerning said 1st or 2nd aspect, Comprising: The elastic force of the said elastic body is changed , The strength of the press with respect to the said hole-drilling apparatus by the said press means is changed. A configuration of including a pressing strength changing unit is proposed as a third aspect.

Further, the present invention is a holding tool according to any one of the first to third aspects, wherein the drilling device that moves downward as the drilling proceeds is moved downward from a predetermined position. A configuration that includes a movement restriction means for restriction is proposed as a fourth aspect.

Further, the present invention provides the holding device according to any one of the first to fourth aspects, wherein the holding means is moved in a state where the holding means is inclined within a predetermined angle range from the self-standing state. A configuration that includes a caster that supports the above is proposed as a fifth aspect.

The present invention also provides a drilling device with a holding tool comprising the holding tool according to any of the first to fifth aspects, and a drilling device held by the holding means of the holding tool. This is proposed as the sixth aspect.

Further, the present invention provides a seventh according retainer with drilling apparatus aspect of the includes an operation means for adjusting the intensity of the drilling force of the drilling apparatus in response to the operation of the workers, This configuration is proposed as a seventh aspect.

  According to the present invention, the operator does not always have to hold the drilling device by hand during drilling. Therefore, the risk of harming the health of workers due to the vibration received from the drilling device during the drilling operation is reduced. As a result, the time for which the worker can continue the drilling work is extended, so the drilling work is made more efficient.

The figure which showed the external appearance of the hole drilling apparatus hold | maintained and used for the holding fixture concerning one Embodiment of this invention. The external view of the holding fixture concerning one Embodiment of this invention. Sectional drawing of the holding fixture concerning one Embodiment of this invention. The figure which showed the drilling apparatus of the state hold | maintained at the holding tool and holding tool concerning one Embodiment of this invention. The figure which showed the state at the time of the movement of the holding fixture concerning one Embodiment of this invention. The figure for demonstrating the role of the hanger with which the holding fixture concerning one Embodiment of this invention is provided. The external view of the holding fixture concerning one modification of this invention. The external view of the holding fixture concerning one modification of this invention.

[Embodiment]
Hereinafter, a holding device 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view of a hole drilling device 9 that is used while being held by the holding tool 1. The hole drilling device 9 is a device that drills an object such as concrete by causing an insert bit (a member in which a bit is integrally formed at the tip of a rod) to perform a piston motion and a rotational motion.

  The hole drilling device 9 includes a main body portion 91, an insert bit 92 that is driven by the main body portion 91 to perform a piston motion and a rotational motion, and above the main body portion 91 (hereinafter, in the present application, the hole drilling device 9 and the holding tool 1). When referring to the upper and lower sides, it includes a handle 93 attached to the upper and lower sides when performing a drilling operation on the floor surface.

  The main body 91 includes an air inlet 911 and receives supply of compressed air from an external air pump (not shown) via an air hose 8 connected to the air inlet 911. The main body portion 91 causes the insert bit 92 to perform piston motion and rotational motion by the pressure of the supplied compressed air.

  A controller 7 (an example of an operation unit) is provided in the middle of the air hose 8. The controller 7 includes a valve (not shown) for adjusting the flow rate of the compressed air flowing through the air hose 8 and a lever 71 for opening and closing the valve. The operator operates the lever 71 to adjust the flow rate of the compressed air supplied to the drilling device 9 so that the drilling force of the drilling device 9 can be increased or decreased without directly touching the drilling device 9. Can be adjusted.

  FIG. 2 is an external view of the holding device 1. More specifically, among the three diagrams included in FIG. 2, the lower right diagram is a front view, and the lower left diagram is a left side view (hereinafter, in the present application, on the left and right sides of the drilling device 9 and the holding tool 1). When referring, it means the left and right for the viewer toward the front view shown in FIG. 2), and the upper right figure is a top view.

  FIG. 3 is a cross-sectional view of the holding device 1. More specifically, FIG. 3 (a) is an AA arrow view shown in FIG. 2, FIG. 3 (b) is a BB arrow view shown in FIG. 2, and FIG. It is CC arrow line view shown in FIG.

  The holding device 1 includes a base 11 placed on an object to be drilled, a support 12 extending upward from the base 11, and a frame 13 (holding portion) provided on the front surface of the support 12. An example), a handle 14 provided on the upper surface of the frame 13, a stopper 15 (an example of a movement restricting portion) provided below the frame 13 on the front surface of the column 12, and a back surface of the base 11. There are a total of two casters 16 provided one by one at symmetrical positions.

  The base 11 includes a bar 111 having a longitudinal direction in the left-right direction (for example, a grooved steel having a U-shaped cross section) and a bar 112 having a longitudinal direction in the front-rear direction (for example, having an L-shaped cross section). Is a member that is connected by welding or the like so as to form a “T” shape when viewed from above.

  The support column 12 is composed of, for example, two bars 121 having the same length (for example, equilateral angle steel having a cross section of “L”), and the bar 111 of the base 11 has a longitudinal direction in the vertical direction. It is connected to the base 11 by welding or the like in a state of being placed at the center in the left-right direction on the upper surface.

  The frame 13 includes four bars 131 extending forward from the front surface of the support column 12 (for example, equilateral angle irons each having an “L” cross section) and four bars 131 at positions parallel to the front surface of the support column 12. (E.g., ("U" -shaped channel steel having a flat cross section)). Each of the four bars 131, the support column 12, and the four bars 131 Each and the plate 132 are connected by welding etc. The frame 13 forms a box shape having openings on the front, left and right and up and down on the front surface of the column 12.

  The handle 14 is, for example, a member obtained by forming a deformed reinforcing bar having a spiral groove on the surface of a round steel into a “U” shape, and the upper two bars with the “U” shape turned upside down. The upper surface of 131 is connected by welding or the like.

  The stopper 15 includes, for example, a plate 151 made of unequal angle iron with a cross section of “L” and a total of two screws that are passed through two screw holes provided in the flat plate portion on the short side of the plate 151. A bolt 152 and a total of two nuts 153 into which each of the two bolts 152 is screwed are provided.

  In the lower half of the support column 12, two slit-like screw holes 122 having the vertical direction as the longitudinal direction are provided in the left and right positions corresponding to the two screw holes of the plate 151. The bolt 152 is screwed into the nut 153 while passing through the screw hole of the plate 151 and the screw hole 122 of the column 12 communicating with the screw hole, and fixes the plate 151 together with the nut 153 to the column 12. The operator can adjust the vertical position of the stopper 15 by loosening the bolt 152 and the nut 153 and adjusting the vertical position of the plate 151 and then tightening the bolt 152 and the nut 153.

  A hole 154 having a diameter longer than the diameter of the insert bit 92 of the hole drilling device 9 is provided in the approximate center of the flat plate portion on the long side of the plate 151.

  Each of the two casters 16 is mounted on the back surface of the bar 111 of the base 11 with the rotation axis of the wheel being parallel to the longitudinal direction of the bar 111. The wheel of the caster 16 does not touch the floor surface in a state where the base 11 is placed on the floor surface, and therefore the holding device 1 is not rolled by the wheel of the caster 16.

  The holding device 1 further includes a guide 17 provided at a central position in the left-right direction on the front surface of the bar 111 of the base 11, and a hanger 18 (provided to extend in the left-right direction on the front surface of the bar 111). An example of the pressing portion together with the elastic rope 19) and an elastic rope 19 in which each of the two ends is connected to the left end portion and the right end portion of the hanger 18 (an example of the pressing portion together with the hanger 18) (FIG. 2 (b) (c) and not shown in FIG.

  The guide 17 is, for example, a cylindrical steel pipe cut short, and is connected to the bar 111 of the base 11 by welding or the like so that the axis is in the vertical direction. The inner diameter of the guide 17 is longer than the diameter of the insert bit 92 by the length of play.

  The hanger 18 includes, for example, two bars 181 having the same length (for example, an equilateral angle iron having a cross section of “L”), and one of the bars 181 is welded to the left side on the front surface of the bar 111. It is attached and extends further to the left from the left end of the bar 111, the other is attached to the right side on the front surface of the bar 111 by welding or the like, and further extends to the right from the right end of the bar 111. A ring 182 for attaching the elastic rope 19 is attached by welding or the like near the left end on the upper surface of the left bar 181 and near the right end on the upper surface of the right bar 181.

  The elastic rope 19 is a string-like elastic body, for example, a synthetic rubber rope. The elastic rope 19 penetrates the frame 13 in the left-right direction, and both ends thereof are tied to the ring 182.

  FIG. 4 is a view showing the holding tool 1 and the hole drilling device 9 held by the holding tool 1. Hereinafter, the holding tool 1 and the drilling device 9 in this state are collectively referred to as a drilling device 10 with a holding tool. 4, the lower right figure is a front view of the drilling device 10 with a holding tool, the lower left diagram is a left side view of the drilling device 10 with a holding tool, and the upper right diagram is a drilling with a holding tool. 3 is a top view of the hole device 10. FIG. As shown in FIG. 4, the hole drilling device 9 is held by the holding tool 1 with the front surface (the side surface on which the air inlet 911 is disposed) in FIG. 1 facing the back surface of the holding tool 1.

  In the hole drilling device 10 with the holding tool, the hole drilling device 9 is accommodated in the frame 13 of the holding tool 1 so that at least a part of the main body 91 is held by the holding tool 1 so as not to fall down. In addition, since the hole drilling device 9 is not connected to the frame 13, the frame 13 does not prevent the downward movement accompanying the hole drilling.

  Further, in the hole drilling device 10 with the holding tool, the insert bit 92 of the hole drilling device 9 passes through the hole 154 of the stopper 15 and the guide 17, and the tip thereof abuts against the object of the hole drilling. The elastic rope 19 is hooked on the handle 93 of the hole drilling device 9. As a result, the hole drilling device 9 is pressed downward, that is, in a direction approaching the base 11 by the elasticity of the elastic rope 19 having both ends tied to the ring 182 of the hanger 18, and the tip of the insert bit 92 is the target of the hole drilling. Pressed by things.

  The usage method of the drilling device 10 with a holding tool having the above-described configuration is as follows. First, the worker moves the drilling device 10 with the holding tool to a place where the drilling is to be performed. At that time, as shown in FIG. 5, the worker holds the handle 14 of the holding device 1 and tilts the holding device 1 to the back side, and puts the entire load of the drilling device 10 with the holding device on the wheels of the casters 16. In this state, the hole drilling device 10 with the holding tool may be pulled to the target location. If the drilling device 10 with a holding tool is moved using the casters 16 in this way, the worker can move the drilling device 10 with a holding tool smoothly with a small force. It is also avoided that the tip of the insert bit 92 is rubbed and the floor surface or the insert bit 92 is damaged.

  Subsequently, the worker aligns the tip of the insert bit 92 with the position of the drilling hole. Thereafter, the worker holds the controller 7 and opens the lever 71 while stepping on the base 11 near the tip of the bar 112, for example. In response to the operation of the lever 71, the hole drilling device 9 starts operation, and then the tip of the insert bit 92 pressed downward by the elastic rope 19 repeats striking with rotation of the object. As a result, the object is gradually crushed and drilling proceeds. If the drilling progresses to some extent, the tip portion of the insert bit 92 is inserted into the drilled hole, and the positional displacement of the drilling device 10 with the holding tool due to vibration or the like accompanying the drilling does not occur. The member may separate the foot that was stepping on the base 11 from the holding device 1.

  The drilling device 9 gradually moves downward as the drilling proceeds. And when the lower end part of the main-body part 91 contact | abuts on the upper surface of the stopper 15, the further downward movement will be controlled by the stopper 15. FIG. As a result, the drilling does not proceed even if the drilling device 9 continues to operate thereafter. The operator closes the lever 71 of the controller 7 when the stopper 15 stops the drilling any more. In response to the operation of the lever 71, the drilling device 9 stops operating. Thereby, the drilling operation of one hole is completed.

  When the drilling operation is completed, the operator pulls up the drilling device 9 in the upward direction and pulls out the tip end portion of the insert bit 92 from the drilled hole, and then drills with a holding tool as shown in FIG. The device 10 is tilted to move the drilling device 10 with a holding tool to the next drilling location. Thereafter, the series of operations described above are performed to drill a new hole.

  According to the holding tool 1, it is not necessary for the worker to directly touch the drilling device 9 while the drilling device 9 performs drilling. Therefore, according to the holding tool 1, the risk of harming the health of the worker due to the vibration received from the drilling device 9 during the drilling operation is reduced. As a result, the time for which the worker can continue the drilling work is extended, so the drilling work is made more efficient.

[Modification]
The above-described embodiments are specific examples of the present invention, and various modifications can be made within the scope of the technical idea of the present invention. Examples of these modifications are shown below.

(1) In embodiment mentioned above, the elastic rope 19 is employ | adopted as a press part which presses the hole-drilling apparatus 9 below. Instead of the elastic rope 19, another member or mechanism for pressing the hole drilling device 9 downward may be employed as the pressing portion. Various springs and hydraulic cylinders are examples of pressing portions that can be employed in place of the elastic rope 19.

(2) In the embodiment described above, the position of the frame 13 is fixed. Instead of this, the frame 13 may be configured to be movable in the vertical direction, and the frame 13 may move downward together with the drilling device 9 as the drilling proceeds.

  As a configuration for enabling the frame 13 to move up and down, any known configuration such as a configuration in which a rail is provided on the support column 12 and the frame 13 is slid on the rail may be employed.

  Further, when a configuration in which the frame 13 is movable up and down is adopted, the elastic rope 19 may be connected to the frame 13 instead of the hole drilling device 9. When the elastic rope 19 is connected to the frame 13, the elastic rope 19 presses the drilling device 9 downward through the frame 13.

  Further, when a configuration in which the frame 13 is movable up and down is employed, the hole drilling device 9 may be fixed to the frame 13. Further, the hole drilling device 9 may be configured integrally with the frame 13 or a holding portion that replaces the frame 13. For example, the configuration in which a rail is provided on the support column 12 and a connecting member that slides on the rail is attached to the drilling device 9 is an example in which the drilling device 9 and the holding unit are integrally configured.

(3) In embodiment mentioned above, the hanger 18 is employ | adopted with the elastic rope 19 as a press part which presses the hole-drilling apparatus 9 below. The hanger 18 extends the elastic rope 19 in the left-right direction longer than the horizontal length of the bar 111 of the base 11, so that the hole-drilling device 9 moves downward to accompany the progress of the hole-drilling. 9 serves to reduce the degree of lowering of the downward pressing force with respect to 9.

  FIG. 6 is a diagram for explaining the role of the hanger 18. FIG. 6A is a diagram illustrating a state in which the pressing point P1 of the elastic rope 19 with respect to the drilling device 9 moves to the lower pressing point P2 by the distance D as the drilling proceeds in the above-described embodiment. . FIG. 6B shows the pressing point P1 when the holding device 1 is not provided with the hanger 18 and one end and the other end of the elastic rope 19 are connected near the left end and the right end of the bar 111. FIG. 4 is a diagram showing a state in which the lens moves to a downward pressing point P2 by a distance D. FIG.

  The elastic rope 19 shown in FIG. 6A is smaller in the magnitude and direction of the elastic force at the pressing point P1 and the pressing point P2 than the elastic rope 19 shown in FIG. 6B. As described above, the elastic rope 19 is elongated in the left-right direction by the hanger 18 so that the change in the pressing force on the drilling device 9 at the start and end of the drilling is reduced.

  Although the hanger 18 brings about the above-mentioned effect, when the hanger 18 is unnecessary because the depth of the drilling hole is short or the like, the holding device 1 does not include the hanger 18, and as shown in FIG. A configuration in which the elastic rope 19 is directly connected to the base 11 may be employed.

(4) When the drilling device 9 moves downward as the drilling progresses, the pressing force for pressing the drilling device 9 downward by the elastic rope 19 decreases, and the speed of the drilling decreases. In order to eliminate this inconvenience, the holding device 1 may be provided with a pressing strength changing portion that changes the strength of pressing the elastic rope 19 or the pressing portion in place of the elastic rope 19 against the hole drilling device 9.

  FIG. 7 shows an example of this modification. In this modification, each of the two left and right hangers 18 is attached to the bar 111 by the connecting member 20 so as to be rotatable about the front-rear direction. For example, when the worker pushes the hanger 18 with a foot or the like in a rotational direction against the elastic force of the elastic rope 19, the connecting member 20 has a mechanism for locking the hanger 18 at a position after being pushed and rotated. Moreover, the connection member 20 is provided with a release button (not shown), and is a mechanism that is unlocked when an operator presses the release button.

  For example, the worker sets the position of the hanger 18 to the position X in the state where the pressing point of the elastic rope 19 against the drilling device 9 is the point Q1, and starts drilling. Thereafter, when the drilling proceeds and the pressing point moves to the point Q2, the worker changes the position of the hanger 18 to the position Y and then continues the drilling. Thereafter, the drilling proceeds and the pressing point moves to point Q3. The worker performs the drilling operation while adjusting the position of the hanger 18 as described above as necessary.

  FIG. 8 is a diagram showing another example of this modification. In the example of FIG. 8, the frame 13 is movable in the vertical direction, and the frame 13 is configured to be pulled downward by a string spring 21 instead of the elastic rope 19. Of the two ends of the string spring 21, the end not connected to the frame 13 is connected to a connecting member 22 provided at a position below the frame 13 on the front surface of the column 12. The connecting member 22 includes a hook 221 for hooking the end of the string spring 21.

  For example, when the worker moves the hook 221 downward, the connecting member 22 includes a mechanism for locking the hook 221 at the moved position. Moreover, the connection member 22 is provided with a release button (not shown), and is a mechanism that is unlocked when an operator presses the release button. As the drilling progresses, the frame 13 moves downward, and if the pressing force for pressing the drilling device 9 downward by the string spring 21 is insufficient, the worker continues to drill after moving the hook 221 downward. To do.

(5) In the above-described embodiment, the drilling device 9 using compressed air is employed as the drilling device. The drilling device that can be employed in the present invention is not limited to one using compressed air. For example, the electric drilling device is an example of a drilling device that can be used instead of the drilling device 9.

(6) In embodiment mentioned above, the controller 7 which adjusts the flow volume of compressed air is employ | adopted as an operation part for an operator to adjust the strength of the drilling force of a drilling apparatus. For example, when the drilling device is an electric type, the drilling device usually includes a control unit that controls the strength of the drilling force. In this case, instead of the controller 7, an operation unit that transmits a control signal by wire or wireless to the control unit of the drilling device may be employed.

(7) The shape and size of the drilling device and the holding tool shown in the above-described embodiments and modifications, the position and number of each member, etc. are merely examples, and various other shapes, sizes, positions, Numbers etc. can be employed. In addition, the method of connecting the members constituting the holding device shown in the above-described embodiments and modifications is merely an example. Therefore, for example, a member manufactured by integral molding may be employed in place of the constituent part configured by a plurality of members connected by welding or the like in the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 ... Holding tool, 7 ... Controller, 8 ... Air hose, 9 ... Drilling device, 10 ... Drilling device with holding tool, 11 ... Base, 12 ... Post, 13 ... Frame, 14 ... Handle, 15 ... Stopper, 16 ... casters, 17 ... guides, 18 ... hangers, 19 ... elastic ropes, 20 ... coupling members, 21 ... string-wound springs, 22 ... coupling members, 71 ... levers, 91 ... body parts, 92 ... insert bits, 93 ... handles, 111 ... Bar, 112 ... Bar, 121 ... Bar, 122 ... Screw hole, 131 ... Bar, 132 ... Plate, 151 ... Plate, 152 ... Bolt, 153 ... Nut, 154 ... Hole, 181 ... Bar, 182 ... Ring, 221 ... Hook, 911 ... Air inlet

Claims (7)

The drilling apparatus for drilling a drilling object, during drilling, a holding means for holding the self-supporting without interfering with the downward movement,
Toward the drilling apparatus on the weight of the holding means through an elastic member, and a pressing means for pressing against the drilling device to the drilling object, the drilling apparatus retainer. The holding means includes a base placed on the hole drilling object, a column extending upward from the base, and a holding unit that holds the hole drilling device and slides on the column. holding instrument according to claim 1 having. By changing the elastic force of the elastic member, the holding device according to claim 1 or 2 comprising a pressure intensity changing means for changing the intensity of pressing against the drilling apparatus by the pressing means. The holding tool according to any one of claims 1 to 3, further comprising movement restriction means for restricting movement of the drilling device that moves downward as the drilling proceeds from a predetermined position. The holding device according to any one of claims 1 to 4, further comprising a caster that movably supports the holding unit in a state where the holding unit is tilted within a predetermined angle range from the self-standing state . The holding device according to any one of claims 1 to 5,
A drilling device with a holding tool comprising: a hole drilling device held by the holding means of the holding tool. Retainer with drilling apparatus according to claim 6, comprising an operating means for adjusting the strength of the drilling force of the drilling apparatus in response to the operation of the workers.

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