JP2020082317A - Driving machine - Google Patents

Abstract

To provide a driving machine in which a guide part can be positioned in a counter part material, and increasing in the number of components can be suppressed.SOLUTION: A driving machine 10 has an impact part that can be activated in a linear direction, and a housing 11 that supports the impact part, and further has an injection part 13 provided in the housing 11 for restricting motion of the impact part in a direction different from the linear direction, and a contact mechanism 52 that is brought into contact with a structural material 53 and a flooring material 54 to position the injection part 13 in a counterpart material. The injection part 13 has a blade guide 44 and a guide plate 45, and an injection path 51 formed between the blade guide 44 and the guide plate 45. A fixing mechanism is further provided that, in a fixed state of the guide plate 45, positions the contact mechanism 52 in the linear direction with respect to the injection part 13 and in a direction crossing the linear direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a driving machine having a striking part that strikes a stopper.

BACKGROUND ART Conventionally, a driving machine having a striking part operable to drive a stopper to a mating member and a housing operably supporting the striking part is known, and an example of the driving machine is disclosed in Patent Document 1. 1 is described. The driving machine described in Patent Document 1 has a housing, a cylinder, a piston, a driver, a handle, an injection part as a guide part, a push lever, a contact mechanism, a magazine, a trigger and a control valve. The piston and driver are striking parts. The stopper is sent from the magazine to the ejection unit.

The ejection unit has an ejection port. The push lever is provided on the injection unit. The contact mechanism is attached to the push lever. The contact mechanism has an acute angle portion. When the acute angle portion is pressed against the corner portion of the floor material as the mating member, the center of the injection port substantially coincides with the corner portion of the floor material. Then, when the trigger is operated, the striking portion is actuated, and the striking portion strikes the stopper in the ejection port. The stopper penetrates the floor material and is driven into the structural material, and the floor material is fixed to the structural material.

JP-A-7-314347

The inventor of the present application has recognized the problem that when the driving mechanism is provided with a contact mechanism for positioning the guide portion with respect to the mating member, the number of parts of the driving machine increases.

An object of the present invention is to provide a driving machine capable of positioning a guide part on a mating member and suppressing an increase in the number of parts.

A driving machine according to one embodiment is a driving machine having a striking section operable in a linear motion direction so as to drive a stopper into a mating member, and a housing operably supporting the striking section, A guide part which is provided in the housing and which restricts the striking part from moving in a direction different from the linear motion direction; and a contact mechanism which contacts the mating member and positions the guide part on the mating member. The guide portion includes a first member attached to the housing, and a second member that is switchable between a fixed state close to the first member and a released state separated from the first member, An injection path which is formed between the first member and the second member in the fixed state, and in which the striking part is operable, and the second member is in the fixed state. Further provided is a fixing mechanism that positions the contact mechanism with respect to the guide portion in the linear movement direction and in a direction intersecting the linear movement direction.

The driving machine according to one embodiment can suppress an increase in the number of parts.

It is a front sectional view showing one embodiment of a driving tool included in the present invention. It is a left side sectional view showing one embodiment of a driving tool. It is a partial right side sectional drawing of a driving machine. It is an exploded view of the contact mechanism which a driving tool has. 5A is a front view showing a specific example 1 of the contact mechanism, and FIG. 5B is a bottom cross-sectional view taken along the line VV of FIG. 5A. 6A is a front view of a base portion in a specific example 1 of the contact mechanism, and FIG. 6B is a side sectional view taken along line VI-VI of FIG. (A) is a right side view of a specific example 1 of the contact mechanism, in which the guide plate is stopped close to the blade guide, and (B) is a specific example 1 of the contact mechanism, in which the guide plate is separated from the blade guide. FIG. (A) is a front view of a base portion in a specific example 2 of the contact mechanism, and (B) is a bottom cross-sectional view taken along the line VIII-VIII of FIG. 8(A). (A) is a right side view showing a state in which the base portion in the specific example 2 of the contact mechanism is attached to and removed from the guide plate, and (B) shows a state in which the base portion in the specific example 2 of the contact mechanism is attached to the guide plate. It is a right side view. FIG. 10A is a front view of an injection unit including a specific example 3 of the contact mechanism, and FIG. 10B is a bottom cross-sectional view taken along line XX of FIG. (A) is a left side view of an injection part including a specific example 3 of a contact mechanism, (B) is a left side view of a blade guide, (C) and (D) are right side views of a guide plate. .. (A), (B) and (C) are front views showing a process of attaching the base portion to the guide plate and a process of removing the base portion from the guide plate in the specific example 3 of the contact mechanism. It is a right view which attached the specific example 4 of a contact mechanism to the injection part and the magazine. (A), (B) and (C) are right side views showing a process of attaching the contact mechanism shown in FIG. 13 to the ejection unit and a process of detaching it from the ejection unit. 13A and 13B are bottom cross-sectional views showing a process of attaching the contact mechanism shown in FIG. 13 to the ejection unit and a process of detaching it from the ejection unit.

Of the several embodiments of the driving tool included in the present invention, typical embodiments will be described with reference to the drawings.

The driving machine 10 shown in FIGS. 1 and 2 has a housing 11, a striking section 12, an ejecting section 13, a power supply section 14, an electric motor 15, a reduction mechanism 16, a converting section 17, and a pressure accumulating container 18. The housing 11 is an outer shell element of the driving machine 10, and the housing 11 includes a cylinder case 19, a handle 20 connected to the cylinder case 19, a motor case 21 connected to the cylinder case 19, a handle 20 and And a mounting portion 22 connected to the motor case 21.

The head cover 23 is attached to the cylinder case 19, and the pressure accumulating container 18 is arranged in the cylinder case 19 and the head cover 23. The cylinder 24 is housed in the cylinder case 19. A pressure chamber 25 is formed in the pressure accumulating container 18 and the cylinder 24. The pressure chamber 25 is filled with a compressible gas. As the compressive gas, an inert gas can be used in addition to air. Examples of the inert gas include nitrogen gas and rare gas. In the present disclosure, an example in which the pressure chamber 25 is filled with air will be described.

The striking part 12 is arranged inside and outside the housing 11. The striking portion 12 is constantly urged in the direction D1 by the pressure of the pressure chamber 25. The striking part 12 has a piston 26 and a driver blade 27. The piston 26 is arranged in the cylinder 24. The striking portion 12 is capable of reciprocating in the direction along the center line A1 of the cylinder 24, that is, capable of linear movement. The driver blade 27 has a rack 28. The rack 28 is composed of a plurality of protrusions arranged at intervals in the direction along the center line A1. A bumper 29 is provided inside the cylinder case 19. The bumper 29 is annular and made of synthetic rubber.

The power supply unit 14 can be attached to and detached from the mounting unit 22. The power supply unit 14 is a DC power supply. The power supply unit 14 has a housing case 30 and a plurality of battery cells housed in the housing case 30. The battery cell is a rechargeable and dischargeable secondary battery, and as the battery cell, a known battery cell such as a lithium ion battery, a nickel hydrogen battery, a lithium ion polymer battery, or a nickel cadmium battery can be arbitrarily used.

The electric motor 15 is arranged in the motor case 21. The electric motor 15 has a rotor 31 and a stator 32. The rotor 31 is attached to the rotor shaft 33, and the rotor shaft 33 is connected to the input element of the reduction mechanism 16.

A trigger 34 and a trigger switch 35 are provided on the handle 20. The trigger switch 35 detects the presence or absence of an operating force applied to the trigger 34, and outputs a signal according to the detection result. The control unit 36 is provided inside the housing 11, for example, across the motor case 21 and the mounting unit 22. The control unit 36 has a microprocessor mounted on the board. The microprocessor has an input/output interface, a control circuit, an arithmetic processing unit, and a storage unit.

The inverter circuit 37 is provided in the motor case. The inverter circuit 37 includes a plurality of switching elements, and the plurality of switching elements can be turned on/off independently. The control unit 36 controls the inverter circuit 37. The inverter circuit 37 electrically connects and disconnects the stator 32 and the power supply unit 14.

A position detection sensor that detects the position of the striking portion 12 in the direction along the center line A1 is provided in the housing 11. The position detection sensor includes a sensor that directly detects the position of the striking part 12 in contact or non-contact with the striking part 12. Further, the position detection sensor includes one that indirectly detects the position of the striking portion 12 from the phase in the rotation direction of the electric motor 15.

The control unit 36 processes the signal of the trigger switch 35 and the signal of the position detection sensor. The control unit 36 controls the inverter circuit 37 to control the rotation and stop of the electric motor 15, the rotation speed of the electric motor 15, and the rotation direction of the electric motor 15.

The conversion unit 17 has a rotation shaft 38 and a wheel 39. The rotating shaft 38 and the wheel 39 are rotatable around the center line A2. The rotary shaft 38 is connected to the output element of the reduction mechanism 16. The conversion unit 17 converts the rotational force of the rotating shaft 38 into the operating force of the striking unit 12. The pinion 40 is provided on the wheel 39. The pinion 40 has a plurality of pins arranged along the rotation direction of the wheel 39. The pinion 40 can be engaged with and disengaged from the rack 28.

A rotation restricting mechanism is provided in the motor case 21. The rotation restricting mechanism enables the wheel 39 to rotate counterclockwise in FIG. 1 by the rotational force when the electric motor 15 rotates forward. The rotation restricting mechanism prevents the wheel 39 from rotating clockwise in FIG. 1 when the force in the direction D1 of the striking portion 12 is transmitted to the wheel 39.

The magazine 41 shown in FIG. 2 is supported by the ejection unit 13 and the housing 11.
The magazine 41 accommodates the fastener 43. The fastener 43 is, for example, a nail, a staple, or the like. The magazine 41 has a feeder 42, and the feeder 42 sends the fastener 43 in the magazine 41 to the ejection unit 13.

The injection unit 13 is provided in the housing 11. The injection part 13 has a blade guide 44 and a guide plate 45 as shown in FIG. The ejection portion 13 is movable within a predetermined range in the direction along the center line A1 with respect to the housing 11. The push lever is attached to the injection unit 13. The push lever can contact and separate from the mating material. An arm 81 is connected to the blade guide 44, and a plate 82 is attached to the arm 81. A holder 83 is provided in the housing 11, and a spring 84 is arranged between the holder 83 and the plate 82. The stopper 85 is provided on the holder 83.

The spring 84 is, for example, a metal compression spring. The plate 82 is pushed by the urging force of the spring 84 and comes into contact with the stopper 85, and the push lever stops at the initial position. When the tip of the injection part 13 is pressed against the mating member, the injection part 13 moves against the urging force of the spring 84 in the direction along the center line A1 with respect to the housing 11 and stops.

The guide plate 45 is attached to the blade guide 44 via a support shaft 46. The guide plate 45 is operable with respect to the blade guide 44 within a predetermined angle about the support shaft 46. The blade guide 44 has a hook 47. A lever 48 is attached to the guide plate 45 via a support shaft 49. The lever 48 is operable with respect to the guide plate 45 about the support shaft 49. The lever 48 has an engagement piece 50.

When the engagement piece 50 engages with the hook 47 and the lever 48 is locked, the guide plate 45 is stopped in the vicinity of the blade guide 44 as shown in FIGS. 3 and 7A. That is, it is in a fixed state. When the guide plate 45 is in the fixed state, the injection passage 51 shown in FIGS. 3 and 5B is formed between the blade guide 44 and the guide plate 45. The injection passage 51 is a passage such as a gap, a space, a hole, or a groove in which the driver blade 27 and the fastener 43 can move in the direction along the center line A1. In the present embodiment, the centerline A1 of the cylinder 24 will be described as being common to the centerline of the injection path 51.

The driver blade 27 is operable in the injection path 51 in the direction along the center line A1. The blade guide 44 and the guide plate 45 restrict the movement of the driver blade 27 in a direction different from the direction along the center line A1. Specifically, regarding the blade guide 44 and the guide plate 45, the driver blade 27 moves in a direction different from the center line A1 in FIG. 1, and the driver blade 27 moves in a direction different from the center line A1 in FIG. , To be restricted.

When the engaging piece 50 is released from the hook 47, the guide plate 45 can be separated from the blade guide 44 as shown in FIG. 7B. A state where the guide plate 45 is separated from the blade guide 44 can be defined as a released state. The operator can switch the guide plate 45 between the fixed state and the released state. As shown in FIG. 7B, the guide plate 45 has an engaging portion 71. The engaging portion 71 is, for example, a recess or a groove.

The contact mechanism 52 shown in FIGS. 3 and 4 is attached to the ejection unit 13 or the magazine 41. The contact mechanism 52 contacts the structural material 53 and the flooring material 54 to position the injection unit 13 with respect to the structural material 53 and the flooring material 54. The contact mechanism 52 can be defined as an attachment. The contact mechanism 52 has a base 55, a first contact element 56 and a second contact element 57. The base 55 is made of metal as an example, and the base 55 has a mounting hole 58 shown in FIG. 4. The first contact element 56 is made of metal as an example, and the first contact element 56 has a mounting hole 59 and a first contact portion 60. The first contact portion 60 is a linear edge. The second contact element 57 is made of metal as an example, and the second contact element 57 has a mounting hole 61 and a second contact portion 62. The second contact portion 62 is a linear edge.

The bolt 63 is inserted into the mounting holes 61, 58, 59, and the nut 64 is tightened to fix the base 55, the first contact element 56, and the second contact element 57 to each other. A lever 65 is attached to the nut 64, and when an operator operates the lever 65, the nut 64 can be tightened and the nut 64 can be loosened. By tightening the nut 64, it is possible to attach the first contact element 56 and the second contact element 57 to the base 55. When the nut 64 is loosened, the first contact element 56 and the second contact element 57 can be removed from the base 55.

With the contact mechanism 52 attached to the ejection unit 13 or the magazine 41, the first contact unit 60 and the second contact unit 62 are parallel to each other. As in FIG. 2, a part of the magazine 41 is located between the housing 11 and the first contact element 56. As shown in FIG. 3, the first contact portion 60 and the second contact portion 62 are arranged along the direction intersecting the center line A1 in a state where the contact mechanism 52 is attached to the ejection portion 13. The center line A1 is located between the first contact element 56 and the second contact element 57.

In the present embodiment, representation of the driving tool 10 in a plane perpendicular to the center line A2 as shown in FIG. 1 is described as a front sectional view of the driving tool 10. In FIG. 1, the center line A2 and the center line A1 are arranged apart from each other in the radial direction of a circle centered on the center line A2. Further, as shown in FIG. 2, it is explained as a side sectional view that the driving machine 10 is represented in a state where the center line A1 and the center line A2 are arranged to intersect with each other.

Next, a usage example of the driving tool 10 to which the contact mechanism 52 is attached will be described. The driving machine 10 having the contact mechanism 52 is used for fixing the flooring material 54 to the structural material 53. The surface 53A of the structural material 53 is flat. The flooring material 54 is a strip-shaped plate material, and the flooring material 54 has a groove 54A and a protrusion 54B. The groove 54A and the protrusion 54B are provided parallel to each other along the side edge of the flooring material 54. The flooring material 54 is placed on the surface 53A of the structural material 53 while the surface 54C of the flooring material 54 is in contact with the surface 53A of the structural material 53.

The operator presses the tip of the base 55 against the base of the protrusion 54B of the flooring material 54. Further, the first contact portion 60 is brought into contact with the surface 54D of the flooring material 54, and the second contact portion 62 is brought into contact with the surface 53A of the structural material 53. The surface 54D is located opposite to the surface 54C, and the surface 54C and the surface 54D are parallel to each other.

Then, the injection part 13 is positioned on the flooring material 54 and the structural material 53. Specifically, the angle of the center line A1 with respect to the surface 54D of the flooring material 54 is determined. Further, the position of the injection portion 13 with respect to the flooring material 54 is determined in the direction along the center line A1.

When the control unit 36 detects that the trigger switch 35 is turned off, the control unit 36 stops the supply of electric power to the electric motor 15 and stops the electric motor 15. When the electric motor 15 is stopped, the striking part 12 is stopped at the standby position. Here, the position of the striking portion 12 corresponding to the state where the piston 26 is separated from the bumper 29 will be described as the standby position.

The striking part 12 is stopped at the standby position by the following action. The pinion 40 and the rack 28 are engaged with each other, and the urging force that the striking portion 12 receives from the pressure chamber 25 is transmitted to the wheel 39, and the wheel 39 receives the rotational force in the clockwise direction in FIG. 1. The rotation restricting mechanism prevents the rotation shaft 38 from rotating, and the striking portion 12 is stopped at the standby position.

When the control unit 36 detects that the trigger switch 35 is turned on, the control unit 36 controls the inverter circuit 37 to supply the electric power of the power supply unit 14 to the electric motor 15 to rotate the electric motor 15 forward. The rotational force of the electric motor 15 is transmitted to the rotary shaft 38 via the reduction mechanism 16. Then, the wheel 39 rotates counterclockwise in FIG.

The rotational force of the wheel 39 is transmitted to the striking part 12, and the striking part 12 rises in the direction D2 in FIG. The direction D1 and the direction D2 are opposite to each other. When the striking portion 12 rises, the pressure in the pressure chamber 25 rises. When the piston 26 reaches the top dead center indicated by the broken line in FIG. 2, all the pinions 40 are released from the rack 28. The striking portion 12 descends in the direction D1 of FIG. 2 under the pressure of the pressure chamber 25. When the striking portion 12 descends, the driver blade 27 strikes the fastener 43 in the injection path 51, and the fastener 43 penetrates the flooring material 54 and is driven into the structural material 53. Therefore, the flooring material 54 is fixed to the structural material 53.

Further, the piston 26 collides with the bumper 29 after the driver blade 27 drives the fastener 43 into the flooring material 54 and the structural material 53. The bumper 29 is elastically deformed by receiving the load in the direction along the center line A1, and the bumper 29 absorbs a part of the kinetic energy of the striking portion 12.

The position of the striking portion 12 with respect to the state where the piston 26 is in contact with the bumper 29 is the bottom dead center. The control unit 36 processes the signal from the position detection sensor and detects the position of the striking unit 12 in the direction along the center line A1. The control unit 36 rotates the electric motor 15 even after the striking unit 12 reaches the bottom dead center. Therefore, the striking portion 12 rises from the bottom dead center. When the control unit 36 detects that the striking unit 12 has reached the standby position, the control unit 36 stops the electric motor 15.

When the worker fixes the predetermined flooring material 54 to the structural material 53, the other flooring material 54 is placed on the surface 53A, and the protrusion 54B of the predetermined flooring material 54 is placed in the groove 54A of the other flooring material 54. Fit in. After that, the other flooring material 54 is fixed to the structural material 53 by using the driving machine 10 in the same manner as described above.

When the retainer 43 is clogged in the injection path 51, the operator operates the lever 48 and puts the guide plate 45 in the released state to remove the retainer 43. Then, the operator brings the guide plate 45 close to the blade guide 44 and operates the lever 48 to fix the guide plate 45. The standby position of the striking portion 12 may be at the bottom dead center, that is, the bottom dead center where the piston 26 contacts the bumper.

In this way, when the fastener 43 is driven into the flooring material 54, the center line A1 intersects the straight line B1 which is perpendicular to the surface 54D. In the present embodiment, the usage state of the driving tool 10 is referred to as the “first state” so that the center line A1 and the straight line B1 intersect.

The driving tool 10 of the present embodiment can also be used in a second state different from the first state. The second state of the driving machine 10 is a use state in which the straight line B1 perpendicular to the surface of the mating member and the center line A1 are parallel to each other. When using the driving machine 10 in the second state, the operator removes the contact mechanism 52 from the driving machine 10.

In the driving machine 10 of the present embodiment, a specific example of the contact mechanism 52 that can be attached to and detached from the ejection unit 13 or the magazine 41 will be sequentially described. When the contact mechanism 52 is attached to or detached from the ejection unit 13 or the magazine 41, the contact mechanism 52 should be attached with the first contact element 56 and the second contact element 57 attached to the base 55, the first contact element 56 and the second contact element. It may be performed in a state in which 57 is removed from the base 55.

(Specific example 1)
The base 55 of the contact mechanism 52 has a first component 66, a second component 67, and a connector 68, as shown in FIGS. 5(A) and 6(A). The first constituent portion 66 and the second constituent portion 67 are arranged with a center line C1 therebetween, and the connecting portion 68 connects the first constituent portion 66 and the second constituent portion 67. The connecting portion 68 has a convex portion 68A shown in FIG. Further, an engaging portion 69 that protrudes from the first component portion 66 toward the center line C1 is provided. The tip 45A of the guide plate 45, the tip 66A of the first component 66, and the tip 67A of the second component 67 are at the same position in the direction along the center line A1.

Further, an engagement portion 70 that protrudes from the second component portion 67 toward the center line C1 is provided. The connecting portion 68 is arranged at a position different from the engaging portions 69 and 70 in the direction along the center line C1. Further, as shown in FIGS. 5B and 6B, the connecting portion 68 and the engaging portions 69 and 70 are arranged at different positions in the arrangement direction of the blade guide 44 and the guide plate 45. There is. The mounting hole 58 is provided in each of the first component portion 66 and the second component portion 67. Further, the guide plate 45 has two engaging portions 45D.

A state in which the contact mechanism 52 is attached to the ejection unit 13 will be described. The guide plate 45 is in a fixed state. Further, as shown in FIGS. 5A and 5B, the guide plate 45 contacts the connecting portion 68, and the two engaging portions 45D contact the engaging portions 69 and 70, respectively. .. Therefore, the engaging portions 69 and 70 are sandwiched by the engaging portion 45D and the blade guide 44, and the base portion 55 is positioned in the direction E1 that is vertically aligned in FIG. 5B. Further, the engaging portions 69 and 70 are engaged with the guide plate 45, and the base portion 55 is positioned in the direction E2 along the left and right in FIG. 5B.

Further, when the guide plate 45 is locked in the fixed state of the blade guide 44 as shown in FIG. 7A, the engaging portion 71 engages with the convex portion 68A of the connecting portion 68. Therefore, the base 55 is positioned in the E3 direction along the vertical direction of FIG. The E3 direction is the same as the direction along the center line A1 in FIGS. Therefore, when the tip of the injection part 13 is pressed against the flooring material 54, the base 55 can be prevented from moving in the direction along the center line A1.

When the operator uses the driving machine 10 in the second state, the contact mechanism 52 is removed from the ejection unit 13 by performing the following work. First, the lever 48 is operated and the guide plate 45 is operated with the support shaft 46 as a fulcrum to bring the guide plate 45 into the released state shown in FIG. 7(B). Then, the engaging portion 71 is released from the connecting portion 68. Then, the worker moves the base 55 along the guide plate 45 to remove the base 55 from the guide plate 45. As described above, when the guide plate 45 is in the released state, the positioning of the contact mechanism 52 with respect to the ejection unit 13 can be released.

Then, the operator actuates the guide plate 45 and holds the guide plate 45 at a position close to the blade guide 44. Further, the operator engages the engaging piece 50 with the hook 47 and then operates the lever 48 to bring the guide plate 45 into a fixed state.

The blade guide 44 and the guide plate 45 that form the ejection unit 13 have a function of restricting the operating direction of the driver blade 27 and a function of easily removing the fastener 43 clogged in the ejection path 51. In addition to the above, it also has a function of positioning the contact mechanism 52 with respect to the ejection unit 13. Therefore, when the contact mechanism 52 is provided in the ejection unit 13, it is not necessary to provide a dedicated attachment mechanism. Therefore, it is possible to suppress an increase in the number of parts of the driving tool 10.

(Specific example 2)
8(A), FIG. 8(B), FIG. 9(A) and FIG. 9(B), the base portion 55 of the contact mechanism 52 shown in FIG. 4 can be attached to and detached from the injection portion 13 of FIG. This is a specific example 2. 8A and 8B, the same components as those in FIGS. 5A and 5B are denoted by the same reference numerals as those in FIGS. 5A and 5B.

The base portion 55 shown in FIGS. 8A and 8B does not include the engaging portions 69 and 70 shown in FIG. 5A. The permanent magnet 72 is fixed to the connecting portion 68. The permanent magnet 72 can be attracted to the base 55 and the guide plate 45. The recess 73 is provided in the connecting portion 68. The guide plate 45 is made of a magnetic material, for example, iron. The guide plate 45 has a main body 75, a protrusion 74 protruding from the main body 75, and a hook 76 provided on the main body 75.

As shown in FIGS. 8A, 8B, and 9B, the permanent magnet 72 is attracted to the main body 75 with the base 55 attached to the guide plate 45. Further, a part of the connecting portion 68 is engaged with the hook 76. The permanent magnet 72 as a fixture is attracted to the main body 75, and the connecting portion 68 is sandwiched between the main body 75 and the hook 76, whereby the base 55 is positioned in the direction E1. The protrusion 74 is located in the recess 73, and the engagement force between the protrusion 74 and the connecting portion 68 positions the base 55 in the direction E2.

Further, the base portion 55 is positioned in the direction E3 by the connection portion 68 engaging with the hook 76. Therefore, when the worker uses the driving machine 10 in the first state, when the injection part 13 is pressed against the flooring material 54, the base 55 moves in the direction along the center line A1 with respect to the injection part 13. Can be prevented.

When the operator uses the driving tool 10 in the second state, the base 55 is removed from the guide plate 45 by performing the following work while the guide plate 45 is fixed to the blade guide 44.

The worker applies a clockwise force to the base 55 with the hook 76 as a fulcrum in FIG. 9B. Then, the base 55 is separated from the guide plate 45 against the attraction force of the permanent magnet 72 as shown in FIG. Further, the worker moves the base 55 in parallel and removes the base 55 from the guide plate 45.

Also in the second specific example, when the contact mechanism 52 is provided in the ejection unit 13, it is not necessary to provide a dedicated attachment mechanism. Therefore, it is possible to suppress an increase in the number of parts of the driving tool 10.

(Specific example 3)
10A and 10B show a specific example 3 in which the base portion 55 of the contact mechanism 52 shown in FIG. 4 can be attached to and detached from the injection portion 13 of FIG. The blade guide 44 has an engaging portion 77 shown in FIG. The engaging portion 77 is projected so as to intersect the center line A1. The guide plate 45 has a mounting hole 78 shown in FIGS. 10(A) and 11(D). The thickness of a portion 45B of the guide plate 45 where the mounting hole 78 is provided is larger than the thickness of another portion 45C.

The base portion 55 has an insertion portion 79. The insertion portion 79 can move in and out of the mounting hole 78. The insertion portion 79 has a notch 80 shown in FIG.

Then, as shown in FIG. 10(B), FIG. 11(A) and FIG. 11(C), the insertion portion 79 is arranged in the mounting hole 78, and FIG. 10(A), FIG. 10(B) and FIG. As shown in (A), the base portion 55 is attached to the ejection portion 13 as shown in FIGS. 10(A) and 10(B) with the engagement portion 77 arranged in the notch 80. The guide plate 45 is fixed at a position close to the blade guide 44.

The base portion 55 is positioned in the directions E1 and E3 with respect to the ejection portion 13 by the engagement force between the insertion portion 79 and the guide plate 45. The base portion 55 is positioned with respect to the ejection portion 13 in the direction E2 by the engagement force between the engagement portion 77 and the insertion portion 79.

The operator can attach and detach the base 55 to and from the injection unit 13. When the operator removes the base portion 55 from the ejection portion 13, the operator operates the lever 48 shown in FIG. 2 and brings the guide plate 45 into the released state. Then, as shown in FIG. 12C, the engaging portion 77 is retracted from the notch 80.

The operator moves the base portion 55 in parallel with the guide plate 45, rotates the base portion 55 by a predetermined angle as shown in FIG. 12B, and attaches the insertion portion 79 as shown in FIG. 12A. Exit from hole 78. The reason why the base 55 is rotated by a predetermined angle is to prevent the base 55 from coming into contact with the part 45B. After the operator removes the base 55 from the guide plate 45, the operator brings the guide plate 45 close to the blade guide 44. The operator further operates the lever 48 to fix the guide plate 45.

When the operator attaches the base portion 55 to the ejection portion 13, the operator operates the lever 48 shown in FIG. 2 and brings the guide plate 45 into the released state. Further, the operator causes the insertion portion 79 to enter the mounting hole 78 as shown in FIGS. 12(A) and 12(B). Further, the worker rotates the base 55 as shown in FIG. 12B and translates the base 55 in parallel, and further inserts the insertion portion 79 into the mounting hole 78 as shown in FIG. 12C.

Then, the operator brings the guide plate 45 close to the blade guide 44 and stops the guide plate 45, so that the engaging portion 77 is positioned in the notch 80. Next, the lever 48 is operated to bring the guide plate 45 into a fixed state as shown in FIGS. 10(A) and 10(B).

Also in the third specific example, when the contact mechanism 52 is provided in the ejection unit 13, it is not necessary to provide a dedicated attachment mechanism. Therefore, it is possible to suppress an increase in the number of parts of the driving tool 10.

(Specific Example 4)
FIG. 13 is a specific example 4 in which the contact mechanism 52 shown in FIG. 4 can be attached to and detached from the ejection unit 13 and the magazine 41 of FIG. The blade guide 44 has a hook 76. Two engaging portions 86 are provided on the first contact element 56 at intervals. The magazine 41 is provided with two recesses 87, and the engaging portions 86 are arranged in the recesses 87, respectively. The end of the base 55 is engaged with the hook 76.

The magazine 41 has a guide rail 88. The guide rail 88 is provided in the direction along the center line A2. The magazine 41 has a tubular shape, and an opening 41</b>A is provided at an end of the magazine 41 that is located opposite to the ejection unit 13. The operator inserts the fastener 43 into the magazine 41 through the opening 41A.

A cap 89 that closes the opening 41A is provided. The cap 89 can be attached to and detached from the magazine 41. The slide member 90 is connected to the cap 89. The slide member 90 can be engaged so as to cover the guide rail 88. The slide member 90 engages with the guide rail 88 and can move and stop along the guide rail 88. When the operator moves the slide member 90, the opening 41A can be opened and closed by the cap 89. A notch 91 is provided at the end of the slide member 90 opposite to the cap 89.

The engaging portion 86 is located in the notch 91 with the cap 89 attached to the magazine 41 and the cap 89 closing the opening 41</b>A.

The contact mechanism 52 is positioned in the direction E1 with respect to the ejection unit 13 by the engaging force between the base 55 and the hook 76 and the engaging force between the engaging unit 86 and the magazine 41. Further, the contact mechanism 52 is positioned in the direction E2 with respect to the ejection portion 13 by the engagement force between the engagement portion 86 and the magazine 41. Further, the engagement portion 86 engages with the slide member 90, and the end portion of the base portion 55 engages with the hook 76, whereby the contact mechanism 52 is positioned with respect to the ejection portion 13 in the direction E3. ..

The operator can hold the guide plate 45 in a fixed state and attach and detach the contact mechanism 52 to and from the ejection unit 13 and the magazine 41.

When the operator attaches the contact mechanism 52 to the ejection unit 13 and the magazine 41, the slide member 90 is stopped at a position separated from the ejection unit 13 or slides as shown in FIG. The member 90 is removed from the guide rail 88. Then, the worker engages a part of the base portion 55 with the hook 76, and operates the base portion 55 with the hook 76 as a fulcrum to bring the base portion 55 close to the guide plate 45 as shown in FIG. 14B. Let Then, the engaging portion 86 enters the recess 87.

Further, the operator brings the slide member 90 close to the ejection portion 13, and stops the slide member 90 when the cap 89 closes the opening 41A as shown in FIG. Then, the engaging portion 86 is located in the notch 91 as shown in FIG.

Next, a description will be given of an operation in which the worker removes the contact mechanism 52 from the ejection unit 13 and the magazine 41. First, the worker separates the slide member 90 from the injection unit 13 from the position of FIG. 14C as shown in FIG. 14B. The operator operates the base 55 with the hook 76 as a fulcrum to separate the base 55 from the guide plate 45 as shown in FIG. Then, the engaging portion 86 retreats from the recess 87. Further, the operator removes the contact mechanism 52 from the ejection unit 13 and the magazine 41.

Also in the fourth example, when the contact mechanism 52 is provided in the ejection unit 13 and the magazine 41, it is not necessary to provide a dedicated attachment mechanism. Therefore, it is possible to suppress an increase in the number of parts of the driving tool 10.

The technical meanings of the items disclosed in the embodiments are as follows. The driving machine 10 is an example of a driving machine. The direction E3 along the center line A1 is an example of the linear movement direction. The directions E1 and E2 are examples of directions intersecting with the linear motion direction. The striking part 12 is an example of a striking part. The housing 11 is an example of a housing. The ejection unit 13 is an example of a guide unit.

That the driver blade 27 moves in a direction different from the center line A1 in FIG. 1 and that the driver blade 27 moves in a direction different from the direction along the center line A1 in FIG. It is an example of “moving in a different direction from”.

The contact mechanism 52 is an example of a contact mechanism. The blade guide 44 is an example of a first member. The guide plate 45 is an example of a second member. The ejection path 51 is an example of the ejection path. The connecting portion 68, the engaging portions 45D, 69, 70, 71, 86, the hook 76, and the slide member 90 are an example of a fixing mechanism. The hook 76 is an example of a hook.

The base 55 is an example of a base. The first contact element 56 is an example of a first contact element. The second contact element 57 is an example of a second contact element. The first contact portion 60 is an example of the first contact portion. The second contact portion 62 is an example of a second contact portion, and the permanent magnet 72 is an example of a magnet. The magazine 41 is an example of a magazine. The slide member 90 is an example of a slide member.

The pressure chamber 25 is an example of a first biasing mechanism. The electric motor 15, the wheel 39, the pinion 40, and the rack 28 are an example of a second biasing mechanism.

The center line A1 is an example of the center line A1. The direction D1 is an example of the first direction. The direction D2 is an example of the second direction. The fastener 43 is an example of a fastener. The fastener 43 may have a head or may not have a head. The fastener 43 may be either a shaft-shaped fastener or an arch-shaped bent fastener.

The driving machine is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the spirit of the invention. The power supply unit 14 may be either a DC power supply or an AC power supply. The DC power supply may be either a secondary battery or a primary battery.

The first biasing mechanism can use a solid spring or a magnetic spring instead of the pressure chamber in which the compressive gas is sealed, that is, the gas spring. As an example, the solid spring urges the striking portion in the first direction by the elastic force of a metal spring. The magnetic spring urges the striking portion in the first direction by the magnetic force of the permanent magnet.

The second urging mechanism urges the striking portion in the second direction against the urging force of the first urging mechanism. The second urging mechanism can use any one of a hydraulic motor, a pneumatic motor, an electromagnet, and a solenoid instead of the electric motor.

The first biasing mechanism includes one that biases the striking portion in the first direction by the pressure of the compressible gas supplied from the outside of the housing through the air hose. In this case, the second biasing mechanism is configured to bias the striking portion in the second direction by the pressure of the compressible gas chamber provided in the housing.

When the second urging mechanism includes any one of an electric motor, a hydraulic motor, and a pneumatic motor, the conversion unit 17 can use a traction mechanism or a cam mechanism instead of the rack and pinion mechanism. The traction mechanism transmits the rotational force of the motor to the striking part 12 via the cable, and pulls the striking part 12 to move it in the second direction. The cam mechanism is a rotary element that is rotated by the rotational force of a motor, and has an annular cam surface whose outer diameter changes gently. The rotating elements that transmit the rotating force of the motor include a gear, a pulley, a roller, a carrier of a planetary gear mechanism, and a disc member.

Furthermore, the driving machine includes a screw driving machine having a structure in which the striking part applies a striking force in the first direction to the stopper and a structure in which a rotating force is applied to the stopper about the center line.

10... Driving machine, 11... Housing, 12... Hitting part, 13... Injection part, 15... Electric motor, 25... Pressure chamber, 28... Rack, 39... Wheel, 40... Pinion, 41... Magazine, 43... Fastener , 44... Blade guide, 45... Guide plate, 45D, 69, 70, 71, 86... Engaging portion, 51... Injection path, 52... Contact mechanism, 55... Base portion, 56... First contact element, 56A... First Contact part, 57... Second contact element, 57A... Second contact part, 68... Connection part, 72... Permanent magnet, 76... Hook, 90... Sliding member, A1... Center line, D1, D2... Orientation, E1, E2 , E3... direction.

Claims (10)

A striking machine having a striking part operable in a linear motion direction so as to drive a stopper into a mating member, and a housing operably supporting the striking part,
A guide portion provided on the housing and for restricting movement of the striking portion in a direction different from the linear movement direction;
A contact mechanism that contacts the mating member and positions the guide portion on the mating member;
Have
The guide part is
A first member attached to the housing;
A second member that can be switched between a fixed state close to the first member and a released state separated from the first member;
An injection path formed between the first member and the second member in the fixed state, and capable of operating the striking part;
Have
When the second member is in the fixed state, a fixing mechanism that positions the contact mechanism in the linear motion direction with respect to the guide portion and positions the contact mechanism in a direction intersecting the linear motion direction, Further, a driving tool. The contact mechanism is
A base part that can be attached to and removed from the guide part,
A first contact element and a second contact element provided on the base,
Have
The first contact element has a first contact portion that contacts the mating member,
The second contact element has a second contact portion parallel to the first contact portion,
The driving machine according to claim 1. The mating material is
Structural material,
An attachment material fixed to the structural material,
Including,
When the first contact element contacts the mounting material and the second contact element contacts the structural material, the centerline of the injection path is positioned to intersect the surface of the mounting material. The driving machine according to claim 2, which comprises: The fixing mechanism can release the positioning of the contact mechanism with respect to the guide portion when the second member is in the released state. The driving machine according to any one of claims 1 to 3. The driving tool according to claim 2 or 3, further comprising a magnet that fixes the base portion and the guide portion to each other. A magazine that is attached to the guide portion and that stores the stopper supplied to the guide portion,
A slide member that is movable and stopable with respect to the magazine,
Is further provided,
The driving machine according to claim 2, wherein the fixing mechanism is the slide member. When the second member is in the fixed state, the fixing mechanism can release the positioning of the contact mechanism with respect to the guide portion. The driving machine according to claim 5. The fixing mechanism is
A hook provided on the second member and engageable with the base;
The magnet that can be attracted to the base and the second member;
The driving machine according to claim 7, further comprising: The fixing mechanism is
A hook provided on the second member and engageable with the base;
The slide member,
The driving machine according to claim 6, further comprising: A first urging mechanism for urging the striking portion in a first direction in the linear motion direction,
A second urging mechanism that urges the striking portion in a second direction opposite to the first direction in the linear motion direction;
The driving machine according to any one of claims 1 to 9, further comprising:

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