WO2016199670A1 - 打込機 - Google Patents
打込機 Download PDFInfo
- Publication number
- WO2016199670A1 WO2016199670A1 PCT/JP2016/066417 JP2016066417W WO2016199670A1 WO 2016199670 A1 WO2016199670 A1 WO 2016199670A1 JP 2016066417 W JP2016066417 W JP 2016066417W WO 2016199670 A1 WO2016199670 A1 WO 2016199670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rack
- driver blade
- driving machine
- stopper
- striker
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/008—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/047—Mechanical details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C7/00—Accessories for nailing or stapling tools, e.g. supports
Definitions
- the present invention relates to a driving machine for driving a stopper into a driven member.
- Patent Document 1 A driving machine for driving a stopper into a driven member is described in Patent Document 1.
- the driving machine described in Patent Document 1 is operable along a housing, a cylindrical guide member provided in the housing, a bumper provided in the housing, a bellows arranged in the housing, and the guide member A piston as a movable member.
- a first end of the guide member in the central axis direction is connected to the housing.
- the bellows is extendable, the first end of the bellows is connected to the piston, and the second end of the bellows is fixed to the housing. Compressed air is enclosed in the bellows to form a compression chamber.
- the housing includes a wall portion, and the bumper is supported by the wall portion.
- the wall portion extends in the radial direction of the guide member, and the wall portion is connected to a second end portion in the central axis direction of the guide member.
- a driver blade as a striker is fixed to the piston.
- An injection part is provided outside the housing, and the injection part is fixed to the partition wall.
- An injection path is provided in the injection unit. The magazine is attached to the injection unit, and the stopper accommodated in the magazine is supplied to the injection path.
- the driving machine described in Patent Document 1 includes a motor provided in the housing, a gear that transmits the rotational force of the motor to the cam, a protrusion provided on the cam, a locking portion provided on the piston, And a bumper provided in the housing. Furthermore, the driving machine described in Patent Document 1 includes a push rod that is movable with respect to the housing and a trigger that is operated by an operator.
- the piston When the piston reaches top dead center, the protrusion is separated from the locking portion, and the rotational force of the cam is not transmitted to the piston. For this reason, the piston moves from the top dead center toward the bottom dead center due to the pressure of the compression chamber. As a result, the driver blade strikes the stopper located in the injection path and drives the stopper into the driven member. The bumper then reduces and damps the impact load when the piston collides with the bumper. In addition, the motor stops after the driver blade has driven the stopper into the driven member, and the piston stops in contact with the bumper.
- Patent Document 1 has no description on the case where the stopper is clogged in the injection portion, and there is room for improvement in that respect.
- An object of the present invention is to provide a driving machine capable of coping with a case where a stopper is clogged in an injection part.
- the invention of one embodiment includes an injection portion to which a stopper is supplied, an impactor that operates from a first position to a second position and that drives the stopper into a driven member, and the impactor
- a driving device comprising: a rack provided; a rotating element that engages with the rack and moves the striker from the second position to the first position; and an engagement that engages with the rack
- the striking element moves from the second position to the first position during one rotation of the rotating element, and the rotating element moves the striking element from the second position to the first position.
- the rack is disengaged from the first position and moves from the first position toward the second position, and the engaging member moves the striking element from the first position to the second position. If it stops before reaching, it can engage the rack.
- the invention of one embodiment can prevent the striker from operating when the stopper is clogged in the injection portion, and can cope with it.
- FIG. 2 is a partial perspective view of the driving machine shown in FIG. 1.
- FIG. 2 is a partial side cross-sectional view of the driving machine shown in FIG. 1.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- It is a front view which shows the fixing mechanism provided in the driving machine of FIG.
- FIG. 6 is a bottom cross-sectional view taken along line A1-A1 of FIG. It is bottom sectional drawing of a driving machine. It is front sectional drawing which shows Embodiment 2 of a driving machine.
- A) is side sectional drawing which shows the principal part of the driving machine of FIG. 12
- B) is a front view which shows the principal part of the driving machine of FIG. (A)
- B) is front sectional drawing which shows Embodiment 2 of a driving machine.
- A), (B) is front sectional drawing which shows Embodiment 2 of a driving machine.
- (A), (B) is front sectional drawing which shows Embodiment 3 of a driving machine.
- (A), (B) is front sectional drawing which shows Embodiment 3 of a driving machine.
- (A), (B) is front sectional drawing which shows Embodiment 3 of a driving machine.
- (A), (B) is an external view which shows Embodiment 4 of a driving machine. It is a perspective view which shows Embodiment 4 of a driving machine.
- (A), (B) is a schematic diagram which shows operation
- A), (B) is a schematic diagram which shows operation
- (A), (B) is front sectional drawing which shows Embodiment 5 of a driving machine. It is side surface sectional drawing which shows Embodiment 5 of a driving machine. It is front sectional drawing which shows Embodiment 5 of a driving machine. It is side surface sectional drawing which shows Embodiment 5 of a driving machine. It is side surface sectional drawing which shows Embodiment 5 of a driving machine. It is front sectional drawing which shows Embodiment 5 of a driving machine. It is side surface sectional drawing which shows Embodiment 5 of a driving machine. It is front sectional drawing which shows Embodiment 5 of a driving machine. It is side surface sectional drawing which shows Embodiment 5 of a driving machine. It is front sectional drawing which shows Embodiment 5 of a driving machine.
- a driving machine 10 shown in FIGS. 1 to 10 includes a housing 11, and the housing 11 is connected to a cylinder case 12, a motor case 13 continuous with the cylinder case 12, and a cylinder case 12. And a mounting portion 15 continuous to the handle 14 and the motor case 13.
- the housing 11 is assembled by fixing two component pieces to each other.
- the two constituent pieces are each molded separately from a synthetic resin such as nylon or polycarbonate.
- a cylindrical cylinder 16 is provided in the cylinder case 12.
- a holder 17 is provided in the cylinder case 12, and the cylinder 16 is positioned in the radial direction by the holder 17.
- a piston 18 is movably disposed in the cylinder 16. The operating direction of the piston 18 is the direction of the center line B1 of the cylinder 16.
- a pressure accumulating container 19 is provided in the cylinder case 12, and the pressure accumulating container 19 and the cylinder 16 are connected by a connecting member 20.
- the connecting member 20 is annular, and a pneumatic chamber 21 is formed from the pressure accumulating container 19 to the cylinder 16.
- a seal member 22 is attached to the outer peripheral surface of the piston 18, and the seal member 22 hermetically seals the pneumatic chamber 21.
- a driver blade 23 is attached to the piston 18.
- a holder 24 is provided in the housing 11, and the cylinder 16 is supported by the holder 24 in the direction of the center line B1.
- the holder 24 is disposed at a position opposite to the position where the pressure accumulating container 19 is disposed in the direction of the center line B1 of the cylinder 16.
- the holder 24 supports the bumper 25, and the bumper 25 is integrally formed of a rubber-like elastic body.
- a shaft hole 24 a is provided in the holder 24, and a guide hole 26 is provided in the bumper 25.
- the driver blade 23 is movable in the direction of the center line B1 within the shaft hole 24a and the guide hole 26.
- a structure in which the center line B1 passes through the center of the driver blade 23 in a plane intersecting with the center line B1 is illustrated.
- An injection unit 27 is attached to the holder 24.
- the injection unit 27 is arranged with respect to the holder 24 in the direction of the center line B1.
- the injection unit 27 is disposed from the inside of the housing 11 to the outside of the housing 11.
- the injection unit 27 includes a blade guide 28 and a cover 30 fixed to the blade guide 28.
- the cover 30 is fixed to the blade guide 28 using a screw member 29.
- An injection path 31 is formed between the blade guide 28 and the cover 30.
- the injection path 31 is a guide hole arranged along the direction of the center line B1.
- the driver blade 23 can reciprocate in the direction of the center line B1 in the injection path 31.
- FIG. 11 which is a bottom view perpendicular to the center line B1, the outer peripheral shape of the driver blade 23 is a rectangle.
- the driver blade 23 is disposed from the cylinder 16 to the injection path 31.
- a push rod 32 is attached to the blade guide 28.
- the push rod 32 is disposed outside the housing 11, and the push rod 32 has a slide hole 32 b, and the screw member 121 inserted into the slide hole 32 b is fastened and fixed to the cover 30.
- the push rod 32 is movable with respect to the cover 30 in the direction of the center line B1.
- the tip 32a of the push rod 32 is pressed against the driven member W1.
- an injection port 31a is provided at a location closest to the tip 32a.
- a guide groove 33 is provided in the blade guide 28.
- the inner surface of the guide groove 33 constitutes a first stopper wall 34 and a second stopper wall 35.
- a contact 36 is fixed to the push rod 32, and a compression coil spring 120 is provided between the contact 36 and the first stopper wall 34.
- the push rod 32 is pushed away from the bumper 25 by the force of the compression coil spring 120, that is, pressed downward in FIG.
- the push rod 32 is movable within a certain range in the direction of the center line B1.
- An accommodating portion 37 that is continuous with the cylinder case 12 and the motor case 13 is provided. That is, the accommodating portion 37 constitutes a part of the housing 11.
- a configuration of a power mechanism 76 that operates the driver blade 23 in a direction approaching the pneumatic chamber 21 against the force of the pneumatic chamber 21 will be described.
- a rotation element 38 is provided in the accommodating portion 37.
- the rotating element 38 is an element that moves the piston 18 in a direction approaching the pneumatic chamber 21.
- the rotation element 38 is fixed to a drive shaft 39, and the drive shaft 39 is supported by two bearings 40 so as to be rotatable about the center line B2.
- the center line B2 is arranged so as to intersect with the center line B1 in a side view of the driving machine 10 shown in FIG.
- FIG. 3 shows an example in which the center line B1 and the center line B2 are at right angles, the center line B1 and the center line B2 do not have to be at right angles.
- the center line B1 and the center line B2 do not intersect.
- a pinion 41 is provided on the rotating element 38.
- the pinion 41 is a plurality of pins arranged at intervals along the rotation direction of the rotation element 38.
- a rack 42 is provided on the side edge of the driver blade 23 along the direction of the center line B1.
- the rack 42 has convex portions 42a and concave portions 42b arranged alternately at a constant interval in the direction of the center line B1, and the pinion 41 can be engaged with and detached from the rack 42.
- the rotating element 38, the pinion 41, and the rack 42 constitute a power mechanism 76.
- the plurality of convex portions 42a are a plurality of teeth.
- An electric motor 43 that rotates the rotating element 38 is provided.
- the electric motor 43 is provided in the motor case 13.
- the electric motor 43 includes a stator 44 that is fixed to the motor case 13 and a rotor 45 that is rotatably provided in the motor case 13.
- a planetary gear type speed reducer 46 is provided in the motor case 13, and an input shaft of the speed reducer 46 is connected to the rotor 45.
- the output shaft of the speed reducer 46 is connected to the drive shaft 39.
- a battery 47 is attached to the mounting portion 15.
- the battery 47 can be attached to and detached from the mounting portion 15, and the battery 47 supplies power to the electric motor 43.
- the battery 47 includes a storage case and a plurality of battery cells stored in the storage case.
- the battery cell is a secondary battery composed of a lithium ion battery, a nickel metal hydride battery, a lithium ion polymer battery, a nickel cadmium battery, or the like.
- a magazine 49 that houses a plurality of stoppers 48 is provided, and the magazine 49 is fixed to the housing 11 and the blade guide 28.
- a fixing element for fixing the magazine 49 is a screw member.
- the magazine 49 is provided with a feeding mechanism, and the feeding mechanism supplies the stopper 48 accommodated in the magazine 49 to the injection path.
- the stopper 48 is an axial nail.
- the injection unit 27 is provided with a pressing sensor 50 and a rotation angle sensor 51.
- the pressing sensor 50 detects whether or not the tip 32a of the push rod 32 has been pressed against the driven member W1, and outputs a signal.
- the rotation angle sensor 51 detects the rotation angle of the rotation element 38 and outputs a signal.
- a trigger 52 is provided on the handle 14, and a trigger switch 53 is provided for detecting whether or not an operating force is applied to the trigger 52.
- a control board 54 is provided in the mounting portion 15, and a controller and an inverter circuit are provided on the control board 54.
- the inverter circuit is connected to the stator 44 of the electric motor 43 and has a switching element.
- the controller processes signals output from the pressing sensor 50, the rotation angle sensor 51, and the trigger switch 53, and controls the inverter circuit. That is, the controller controls the rotation, stop, and rotation speed of the electric motor 43.
- the controller stops the electric motor 43 when the push rod 32 is separated from the driven member W1 and the operation force of the trigger 52 is released. That is, the piston 18 is pushed toward the bumper 25 by the air pressure in the pneumatic chamber, and the driver blade 23 is pushed against the bumper 25. That is, both the piston 18 and the driver blade 23 are stopped at the bottom dead center.
- the controller When the controller detects that the push rod 32 is pressed against the driven member W1 and an operation force is applied to the trigger 52, the controller rotates the electric motor 43. The rotational force of the electric motor 43 is transmitted to the rotary element 38 via the speed reducer 46.
- the rotating element 38 rotates counterclockwise in FIG. 4 and the pinion 41 engages with the rack 42, the driver blade 23 rises from the bottom dead center to the top dead center, and the air pressure in the pneumatic chamber 21 rises.
- the driver blade 23 is raised by the rotational force of the electric motor 43, and after the driver blade 23 reaches top dead center, the pinion 41 is separated from the rack 42. In this way, the pinion 41 moves away from the rack 42 after the driver blade 23 reaches the top dead center during one rotation of the rotating element 38. Then, the driver blade 23 moves in the direction of the center line B1 from the top dead center to the bottom dead center by the air pressure of the pneumatic chamber 21. Then, the driver blade 23 strikes the stopper 48 in the injection path 31, and the stopper 48 is driven into the driven member W1 from the injection port 31a of the injection path 31.
- the driver blade 23 drives the stopper 48 into the driven member W1
- the driver blade 23 descends with a surplus kinetic energy
- the driver blade 23 collides with the bumper 25, and the driver blade 23 A part of the kinetic energy of the piston 18 is absorbed by the bumper 25.
- the controller stops the electric motor 43 after the driver blade 23 hits the stopper 48 and before the pinion 41 engages with the rack 42 again.
- the controller determines the timing for stopping the electric motor 43 from the rotation angle of the rotation element 38.
- the piston 18 and the driver blade 23 have a top dead center and a bottom dead center, respectively.
- the top dead center of the piston 18 and the top dead center of the driver blade 23 are different in the position in the direction of the center line B1, but both are the positions closest to the pneumatic chamber 21.
- the bottom dead center of the piston 18 and the bottom dead center of the driver blade 23 have different positions in the direction of the center line B1, but both are the positions farthest from the air pressure chamber 21.
- the stopper 48 struck by the driver blade 23 comes out of the injection path 31 for some reason, for example, because the driven member W1 is hard. There is a possibility that the injection path 31 is clogged. In this case, the driver blade 23 stops between the top dead center and the bottom dead center. Therefore, the operator performs the operation of taking out the stopper 48 from the injection path 31 in a state where the push rod 32 is separated from the driven member W1 and the operation force with respect to the trigger 52 is released.
- the driving machine 10 includes a fixing mechanism 55 that is used when an operation for taking out the stopper 48 from the injection path 31 is performed.
- the fixing mechanism 55 has a role of holding the driver blade 23 at the stop position when the driver blade 23 is stopped between the top dead center and the bottom dead center.
- the fixing mechanism 55 includes a lock plate 56 and a lock lever 57.
- the lock lever 57 can rotate around the support shaft 58.
- the center line B3 of the support shaft 58 is parallel to the center line B2.
- a cam plate 59 is fixed to the lock lever 57.
- a protrusion 61 is provided so as to protrude from the surface of the cam plate 59 in the direction of the center line B3.
- a cam surface 60 is formed on the outer periphery of the protrusion 61.
- the cam surface 60 is non-circular in a plane perpendicular to the center line B3.
- Guide rails 62 and 63 are provided on the blade guide 28. In a plan view perpendicular to the center line B3, the guide rails 62 and 63 are both linear and parallel to each other. The guide rails 62 and 63 are inclined with respect to the center line B1. The guide rail 62 and the guide rail 63 are arranged at an interval in the direction of the center line B1. The guide rail 62 is disposed between the tip 32a of the push rod 32 and the guide rail 63 in the direction of the center line B1.
- the lock plate 56 is disposed between the guide rail 62 and the guide rail 63.
- the lock plate 56 includes contact portions 64 and 65 at both ends in the direction of the center line B1.
- the contact parts 64 and 65 are both linear and parallel to each other. Further, the contact portions 64 and 65 are inclined with respect to the center line B1.
- the angle and direction in which the contact portions 64 and 65 are inclined with respect to the center line B1 are the same as the angle and direction in which the guide rails 62 and 63 are inclined with respect to the center line B1.
- the contact parts 64 and 65 are parallel to the guide rails 62 and 63.
- the lock plate 56 is movable in a direction opposite to the direction in which the driver blade 23 drives the stopper 48 and obliquely with respect to the center line B1 while being in contact with the guide rail 62 or the guide rail 63.
- the direction opposite to the direction in which the driver blade 23 drives the stopper 48 is a direction in which a component force that pushes the driver blade 23 toward the top dead center is generated by the movement of the lock plate 56. This component force is a vector in the direction of the center line B1.
- the contact part 64 and the contact part 65 are arranged at a distance in the direction of the center line B1.
- the distance between the guide rail 62 and the guide rail 63 is greater than the distance between the contact portion 64 and the contact portion 65 in the direction of the center line B1.
- the distance between the contact portion 64 and the contact portion 65 is the width of the lock plate 56 in the direction of the center line B1. For this reason, the lock plate 56 can move by a predetermined amount in the direction of the center line B1 while being disposed between the guide rail 62 and the guide rail 63.
- the lock plate 56 is movable between the guide rails 62 and 63 in a plane perpendicular to the center line B3 in a state where the lock plate 56 is disposed between the guide rail 62 and the guide rail 63.
- a plurality of pins 66 are provided on the lock plate 56.
- the pin 66 protrudes from the lock plate 56 in the direction of the center line B3.
- the plurality of pins 66 are arranged at a constant pitch in the direction of the center line B1. In the direction of the center line B1, the pitch between the plurality of pins 66 is the same as the pitch between the plurality of convex portions 42a.
- the pin 66 can be engaged with the rack 42.
- the fixing mechanism 55 has a role of maintaining the state in which the pins 66 are engaged with the rack 42.
- the outer diameter of the pin 66 is smaller than the length of the recess 42b in the direction of the center line B1.
- a plate 67 is attached to the lock plate 56.
- the plate 67 is disposed between the lock plate 56 and the cam plate 59.
- a pin 68 is provided on the blade guide 28 and a pin 69 is provided on the lock plate 56.
- a tension coil spring 70 is provided, a first end portion of the tension coil spring 70 is connected to the pin 68, and a second end portion of the tension coil spring 70 is connected to the pin 69. The tension coil spring 70 urges the lock plate 56 in a direction away from the driver blade 23.
- a fixing pin 71 is provided on the blade guide 28.
- the fixing pin 71 is pushed in a direction protruding from the surface of the blade guide 28 by the force of the spring.
- a notch 72 is provided on the outer peripheral surface of the cam plate 59. The fixing pin 71 can enter and leave the notch 72.
- the lock lever 57 is held at the initial position as shown in FIG.
- the lock plate 56 is stopped at the standby position farthest from the center line B ⁇ b> 1 by the force of the tension coil spring 70.
- the pin 66 is not engaged with the rack 42. That is, the pin 66 protrudes from the recess 42b, and the driver blade 23 can move in the direction of the center line B1.
- the operator After removing the stopper 48, the operator causes the fixing pin 71 to be retracted from the notch 72, and the lock lever 57 is rotated clockwise in FIG. Then, the cam plate 59 rotates together with the lock lever 57 in the clockwise direction in FIG. Further, the lock plate 56 slides away from the center line B1, and the pin 66 is separated from the rack 42.
- the lock plate 56 stops at the standby position.
- the lock plate 56 slides crossing the center line B1. Therefore, the pin 66 positioned first from the bottom enters the concave portion 42b formed between the convex portion 42a positioned first from the bottom and the convex portion 42a positioned second from the bottom.
- a third operation for removing the stopper 48 is performed as shown in FIGS.
- the description will be given with reference.
- the pin 66 is pressed against the lower surface of the convex portion 42a in the process of sliding the lock plate 56 from the standby position to the fixed position. Further, the lock plate 56 slides in a direction inclined with respect to the center line B1. For this reason, when the lock plate 56 moves in a direction inclined with respect to the center line B1, the lowermost pin 66 engages with the lowermost convex portion 42a, and the lock plate 56 stops at the fixed position. For this reason, the workability of removing the stopper 48 from the injection path 31 is improved.
- the lock lever 73 is rotatable about the support shaft 74.
- the lock lever 73 has a cam surface 75.
- the cam surface 75 is not pressed against the plate 67. For this reason, the lock plate 56 is stopped at the standby position by the force of the tension coil spring 70. That is, the pin 66 is away from the rack 42, and the driver blade 23 is movable in the direction of the center line B1.
- the lock lever 73 can be rotated counterclockwise in FIG. 11 to return the lock lever 73 to the initial position. Then, the lock plate 56 slides away from the center line B1 by the force of the tension coil spring 70 from the fixed position, returns to the standby position, and stops.
- the top dead center corresponds to the first position
- the bottom dead center corresponds to the second position
- the driver blade 23 corresponds to the striker.
- the lock plate 56 corresponds to an engaging member.
- the center line B1 is the first center line
- the guide rail 62 and the guide rail 63 correspond to the first guide rail and the second guide rail
- the support shafts 58 and 74 correspond to the support shaft
- the lock lever 57 73 correspond to the lever
- the center lines B3 and B4 correspond to the second center line
- the blade guide 28 corresponds to the first component
- the cover 30 corresponds to the second component.
- the direction of the center line B1 is the direction in which the striker operates.
- Embodiment 2 of a driving machine is shown in FIGS.
- a cam portion 77 is fixed to the drive shaft 39.
- the shape of the outer peripheral surface 77A of the cam portion 77 is non-circular, and the cam portion 77 can rotate integrally with the rotating element 38 around the center line B2.
- a guide hole 78 penetrating the cam portion 77 in the direction of the center line B2 is provided.
- the guide hole 78 has a short axis and a long axis, and the long axis is arranged in the radial direction of the rotating element 38.
- a guide hole 79 is provided in the rotating element 38.
- the guide hole 79 passes through the rotation element 38 in the direction of the center line B2.
- the guide hole 79 is disposed at the same position as the guide hole 78 and has the same shape in a plan view perpendicular to the center line B2. That is, the guide holes 78 and 79 overlap with each other in plan view perpendicular to the center line B2.
- the pinion 41 ⁇ / b> A disposed at one end in the circumferential direction is disposed in the guide holes 78 and 79 and is movable in the major axis direction of the guide holes 78 and 79. That is, the pinion 41A is movable in the radial direction of the rotating element 38.
- a retainer 88 is fixed to the pinion 41 ⁇ / b> A, and the pinion 41 ⁇ / b> A does not come off the rotating element 38.
- An urging member 80 is attached to the drive shaft 39.
- the urging member 80 is an element that pushes the pinion 41 ⁇ / b> A outward in the radial direction of the rotating element 38.
- the urging member 80 can be an elastic member, for example, a metal torsion coil spring.
- the first end 81 of the urging member 80 is fixed to the rotating element 38, and the second end 82 of the urging member 80 is pressed against the pinion 41A.
- the driving machine 10 includes a controller 83, a rotation angle sensor 51, a trigger switch 53, a pressing sensor 50, and an inverter circuit 84.
- the rotation angle sensor 51 contacts the outer peripheral surface 77A of the cam portion 77, detects the rotation angle of the rotation element 38, and outputs a signal based on the detection result.
- a reset switch 89 operated by an operator is provided.
- the reset switch 89 outputs a signal.
- the controller 83 processes the signal of the trigger switch 53, the signal of the pressing sensor 50, the signal of the rotation angle sensor 51, and the signal of the reset switch 89.
- a stopper 90 that operates in response to a signal from the controller 83 is provided.
- the stopper 90 prevents the stopper 48 in the magazine 49 from being supplied to the injection path 31.
- the stopper 90 includes, for example, a solenoid and a pin that is operated by the solenoid.
- the inverter circuit 84 constitutes a circuit that supplies the electric power of the battery 47 to the electric motor 43. Furthermore, a phase detection sensor 85 that detects the rotation angle and the phase of the rotation direction of the electric motor 43 is provided, and a signal output from the phase detection sensor 85 is input to the controller 83. Further, a current value detection sensor 86 that detects a current value of electric power supplied from the battery 47 to the electric motor 43 is provided. A signal output from the current value detection sensor 86 is input to the controller 83.
- a position detection sensor 87 for detecting the position of the driver blade 23 in the direction of the center line B1 is provided.
- the position detection sensor 87 can be achieved by, for example, detection coils attached to a plurality of locations of the cylinder 16 and magnets attached to the piston 18. Then, a signal indicating the position of the driver blade 23 is output by energizing the detection coil and detecting an electromotive force generated between the magnet and the detection coil. A signal output from the position detection sensor 87 is input to the controller 83.
- the controller 83 controls the rotation and stop of the electric motor 43 by processing the input signal and controlling the inverter circuit 84.
- Other configurations of the driving machine 10 shown in FIGS. 15 to 18 are the same as the configurations of the driving machine 10 shown in FIGS.
- the driving machine 10 shown in FIGS. 15 to 18 has a holding mechanism 91 instead of the fixing mechanism 55.
- the holding mechanism 91 can hold the driver blade 23 between the top dead center and the bottom dead center when the stopper 48 is clogged in the injection path 31.
- the holding mechanism 91 includes a controller 83, an electric motor 43, a rotating element 38, and a pinion 41A.
- the controller 83 determines whether or not the stopper 48 is clogged in the injection path 31.
- the controller 83 rotates the rotating element 38 counterclockwise in FIG. 15 and starts the ascending control to move the driver blade 23 from the second position to the first position.
- the controller 83 indicates that the driver blade 23 has reached the bottom dead center within a predetermined time from the time when the rotation element 38 rotates counterclockwise in FIG. 15 and the driver blade 23 starts to rise. If it is not detected, it is determined that “the stopper 48 is clogged”.
- the clogging of the stopper 48 means that the driver blade 23 starts to rise and reaches the first position, and further, the driver blade 23 moves from the first position to the second position by the striking force of the pneumatic chamber 21. It means that the stopper 48 is clogged in the injection path 31 after hitting the stopper 48.
- the controller 83 determines that the stopper 48 is not clogged, it performs normal control.
- the normal control is control in which the electric motor 43 is rotated by a predetermined angle and stopped after the driver blade 23 starts to rise from the bottom dead center.
- the controller 83 determines the point in time when the driver blade 23 starts to rise due to the rotational force of the electric motor 43 from the load of the electric motor 43, that is, the signal of the current value detection sensor 86.
- the controller 83 stops the electric motor 43, the lower end of the driver blade 23 is positioned below the upper end of the stopper 48 positioned at the head in the magazine 49. That is, the driver blade 23 stops at the standby position in preparation for the next hit.
- the controller 83 determines that the stopper 48 is clogged in the injection path 31, the controller 83 can execute the first holding control without executing the normal control.
- the first holding control is a control in which the driver blade 23 stopped without reaching the bottom dead center is raised and stopped before reaching the top dead center. Specifically, the controller 83 raises the driver blade 23 by a predetermined amount and stops the electric motor 43 from the time when the driver blade 23 starts to rise.
- the position where the stop 48 stops and the driver blade 23 stops before reaching the bottom dead center is determined by experiment or simulation. That is, the predetermined amount by which the stopped driver blade 23 is raised by the first holding control is a movement amount that can be stopped before the driver blade 23 reaches the top dead center.
- the driver blade 23 is moved by a predetermined amount and stopped, the lower end of the driver blade 23 is located below the upper end of the stopper 48 located at the head in the magazine 49.
- the first holding control is executed, the rotating element 38 is rotated by the rotational force of the electric motor 43, the pinion 41 is engaged with the rack 42, and the action of the driver blade 23 rising is shown in FIG. 15, FIG. 17, FIG. Will be described with reference to FIG.
- the first engaging action is that the pinion 41A located at the head of the plurality of pinions 41 in the rotation direction of the rotating element 38 is not hindered by the convex part 42a located second or later from above, It means engaging with the convex part 42a located.
- the pinion 41 ⁇ / b> A is pressed and stopped in the guide hole 78 by the urging force of the urging member 80.
- the second engaging action is that the pinion 41A located at the head in the rotation direction of the rotating element 38 among the plurality of pinions 41 is obstructed by the convex part 42a located second or later from the top, and then upward. It means that the driver blade 23 rises by engaging with the convex portion 42a located.
- the pinion 41A is pressed against the convex portion 42a located second and later from the top.
- the pinion 41A cannot move on the same circumference, the pinion 41A moves inward in the radial direction in the guide hole 78 against the urging force of the urging member 80 as shown in FIG. Then, when the rotation of the rotation element 38 is continued and the pinion 41A gets over the convex portion 42a positioned second and subsequent from the top, the pinion 41A is attached to the biasing member 80 as shown in FIG. The force moves outward in the radial direction of the rotating element 38 in the guide hole 78. In this way, the pinion 41A engages with the convex portion 42a located above, and the rotation element 38 continues to rotate, the driver blade 23 rises as shown in FIG. 18B, and the electric motor 43 Stops and the driver blade 23 is held.
- the controller 83 executes the first release control or the second release control.
- the electric motor 43 is rotated in the second direction, the rotating element 38 is rotated clockwise in FIGS. 15 and 18 to lower the driver blade 23, and the driver blade 23 reaches the bottom dead center. At this time, the electric motor 43 is stopped.
- the controller 83 rotates the electric motor 43 per unit time so that the speed at which the driver blade 23 descends is less than the speed at which the driver blade 23 descends due to the pressure in the pneumatic chamber 21. Control the number.
- the electric motor 43 is rotated in the first direction, and the rotating element 38 is rotated counterclockwise in FIGS. 15 and 18 to raise the driver blade 23. Then, after the pinion 41 is released from the rack 42 and the driver blade 23 is lowered by the pressure of the pneumatic chamber 21 and reaches the bottom dead center, the controller 83 raises the driver blade 23 again by the rotational force of the electric motor 43. In this control, the driver blade 23 is stopped at a position above the bottom dead center. When the driver blade 23 is stopped by executing the second release control, the lower end of the driver blade 23 is positioned below the upper end of the stopper 48 positioned at the head in the magazine 49.
- the controller 83 operates the stopper 90 while the driver blade 23 descends by executing the second control, so that the stopper 48 in the magazine 49 is not supplied to the injection path 31. Then, the controller 83 releases the stopper 90 after the driver blade 23 stops.
- the controller 83 executes the first holding control example and raises the driver blade 23 by a predetermined amount to stop. Therefore, the operator can smoothly perform the operation of removing the stopper 48 from the injection path 31.
- the pneumatic chamber 21 corresponds to a striking element
- the electric motor 43 corresponds to a motor
- the pinion 41 in particular, the pinion 41A corresponds to an engaging member.
- Embodiment 3 of a driving machine will be described with reference to FIGS.
- the pinion 41B located at the rearmost part of the pinion 41 is movable in the radial direction of the rotating element 38 in the direction in which the rotating element 38 rotates counterclockwise.
- the driving machine 10 has a holding mechanism 91, and the holding mechanism 91 includes a controller 83, a rotating element 38, a pinion 41, and an electric motor 43.
- the controller 83 executes normal control when the stopper 48 is not clogged, and when determining that the stopper 48 is clogged in the injection path 31, the controller 83 can execute the second holding control without executing the normal control.
- the second holding control is a control for holding the driver blade 23 by rotating the electric motor 43 in the second direction and rotating the rotating element 38 clockwise in FIG. 20 to engage the pinion 41 with the rack 42.
- the first entry action means that the pinion 41B enters the recess 42b without being inhibited by the projection 42a.
- the pinion 41B enters the recess 42b.
- the controller 83 stops the electric motor 43 when the pinion 41B comes into contact with the convex portion 42a located below the concave portion 42b.
- the controller 83 processes the signal of the current value detection sensor 86 to determine that the pinion 41B has contacted the convex portion 42a.
- the driver blade 23 is prevented from descending. Therefore, the operator can smoothly perform the operation of removing the stopper 48.
- the controller 83 detects that the pinion 41B has entered the concave portion 42b and has come into contact with the lower convex portion 42a, the controller 83 stops the electric motor 43 and then rotates the electric motor 43 in the first direction. Then, the rotating element 38 rotates counterclockwise in FIG. 19, and the controller 83 engages with the rack 42 by pressing the pinion 41B against the convex portion 42a located above as shown in FIG. 19B. Then, the electric motor 43 is stopped.
- the controller 83 processes the signal of the current value detection sensor 86 to detect that the pinion 41B is pressed against the convex portion 42a. When the pinion 41B and the rack 42 are engaged, the driver blade 23 is prevented from descending. Therefore, the operator can smoothly perform the operation of removing the stopper 48 from the injection path 31.
- the controller 83 performs the first release control or the second release control when the operator operates the reset switch 89 after removing the stopper 48 from the injection path 31.
- the electric motor 43 corresponds to the motor
- the controller 83 corresponds to the controller
- the pneumatic chamber 21 corresponds to the striking element
- the pinion 41 in particular the pinion 41B, It corresponds to an engaging member.
- a support mechanism 131 is provided in the injection unit 27.
- the support mechanism 131 includes an arm 133 provided on the cover 30 so as to be rotatable about a support shaft 132 and a latch 135 provided on the cover 30 so as to be rotatable about a support shaft 134.
- the latch 135 is urged clockwise around the support shaft 134 by the force of the elastic member 136 in FIGS.
- the elastic member 136 is a metal spiral coil spring.
- a knock pin 137 is provided at the free end of the latch 135.
- the knock pin 137 may be rotatable with respect to the latch 135.
- the knock pin 137 is disposed between the support shaft 134 and the drive shaft 39 in the direction of the center line B1.
- the knock pin 137 is disposed between the driver blade 23 and the support shaft 134 in a direction perpendicular to the center line B1.
- the knock pin 137 can be engaged with and released from the rack 42. Further, the knock pin 137 is movable in the direction of the center line B1 while being in contact with the convex portion 42a of the rack 42.
- the arm 133 is bent halfway in the longitudinal direction, and the support shaft 132 is disposed in the middle in the longitudinal direction of the arm 133.
- the arm 133 has a first contact portion 138 and a second contact portion 139 on both sides of the support shaft 132.
- the first contact portion 138 is disposed between the support shaft 132 and the support shaft 134 in the direction of the center line B1.
- the first contact portion 138 can contact and separate from the free end of the latch 135.
- the second contact portion 139 is disposed between the cam portion 77 and the support shaft 132.
- the second contact portion 139 contacts the cam portion 77.
- the outer peripheral surface 77A is formed in an arc shape with the center line B2 as the center.
- a raised portion 77B is provided so as to protrude outward in the radial direction of the cam portion 77 from the outer peripheral surface 77A.
- the raised portion 77B is displaced in the radial direction of the cam portion 77 with respect to the outer peripheral surface 77A of the cam portion 77.
- the controller 83 rotates the electric motor 43 in the first direction. Then, the rotating element 38 rotates counterclockwise in FIG. 22A, the pinion 41 and the rack 42 are engaged, and the driver blade 23 operates in a direction approaching the top dead center.
- the knock pin 137 is in contact with the convex portion 42a and rides on the convex portion 42a as shown in FIG. 22B, and passes over the convex portion 42a and enters the concave portion 42b. For this reason, the latch 135 operates within a predetermined angle in the counterclockwise and clockwise directions around the support shaft 134. Thereafter, while the driver blade 23 is operating in a direction approaching top dead center, the knock pin 137 rides on the convex portion 42a and repeats the operation of getting over the convex portion 42a. In this way, the operation of the driver blade 23 is allowed.
- the pinion 41 located at the rear end in the rotation direction of the rotating element 38 is closest to the front end 23a of the driver blade 23.
- the second contact portion 139 contacts the outer surface of the raised portion 77B.
- the cam portion 77 rotates, the arm 133 rotates around the support shaft 132 within a predetermined angle range about the support shaft 132 as shown in FIG.
- the first contact portion 138 pushes the latch 135, and the latch 135 rotates counterclockwise by a predetermined angle about the support shaft 134.
- the knock pin 137 is released from the rack 42.
- the driver blade 23 When the second contact portion 139 is in contact with the outer surface of the raised portion 77B, the driver blade 23 reaches the top dead center, and all the pinions 41 are released from the rack 42. The driver blade 23 strikes the stopper 48 by operating toward the bottom dead center by the air pressure of the chamber 21. After the driver blade 23 hits the stopper 48, the controller 83 moves the driver blade 23 to the standby position and stops the electric motor 43 as in the first embodiment.
- the second contact portion 139 moves away from the raised portion 77B, the arm 133 rotates clockwise by the force of the elastic member 136, and when the controller 83 contacts the outer peripheral surface 77A as shown in FIG. Stop. For this reason, the latch 135 rotates clockwise around the support shaft 134, and the knock pin 137 engages with the rack 42.
- the knock pin 137 is disposed between the support shaft 134 and the support shaft 132 in the direction of the center line B1.
- the knock pin 137 does not get over the convex portion 42a, and the engagement between the knock pin 137 and the rack 42 is maintained. That is, the latch 135 does not rotate around the support shaft 134.
- the force that urges the driver blade 23 toward the bottom dead center is received by the injection unit 27 via the latch 135. Therefore, when the operator removes the stopper 48 from the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center, and workability is improved.
- the controller 83 After the operator removes the stopper 48, when the controller 83 detects that the trigger switch 53 is turned on and the pressing sensor 50 is turned on, the controller 83 rotates the electric motor 43 in the second direction, and FIG.
- the electric motor 43 is stopped.
- the driver blade 23 is moved toward the bottom dead center by air pressure, and the driver blade 23 is idled without the stopper 48 in the injection path 31.
- the controller 83 rotates the electric motor 43 in the first direction, operates the driver blade 23 toward the top dead center with the engagement force between the pinion 41 and the rack 42, and when the driver blade 23 reaches the standby position. Then, the electric motor 43 is stopped.
- FIG. 25 is an example in which an auxiliary rack 42 c is provided at the tip 23 a of the driver blade 23.
- the auxiliary rack 42 c is disposed between the convex portion 42 a that is disposed farthest from the piston 18 in the direction of the center line B ⁇ b> 1 and the tip 23 a of the driver blade 23.
- the knock pin 137 gets over the auxiliary rack 24c, and when the driver blade 23 reaches the top dead center, it engages with the auxiliary rack 24c. For this reason, when the rotating element 38 rotates counterclockwise in FIG. 25, the pinion 41 previously engaged is separated from the convex portion 42a, and before the next pinion 41 is engaged with the next convex portion 42a, The knock pin 137 engages with the auxiliary rack 24c. That is, the load of the driver blade 23 is received by the latch 135. For this reason, after the driver blade 23 reaches the top dead center, the amount of movement of the driver blade 23 in the direction of the center line B1 can be reduced as much as possible. Therefore, the load that the pinion 41 and the convex portion 42 a collide with can be reduced, and the deterioration of the durability of the driver blade 23 and the rotating element 38 can be suppressed.
- the injection mechanism 27 is provided with a support mechanism 122.
- the support mechanism 122 includes a mount 123 provided on the cover 30, a shaft member 124 rotatably supported by the mount 123, a first latch 125 and a second latch 126 provided on the shaft member 124, and a shaft member 124.
- an elastic member 127 that applies a biasing force in the rotation direction.
- the elastic member 127 is a metal torsion coil spring.
- the first latch 125 and the second latch 126 are disposed at the same position in the rotation direction of the shaft member 124 and are disposed at different positions in the center line direction of the shaft member 124.
- An opening 128 is formed in the cover 30.
- a guide plate 129 is provided between the cover 30 and the blade guide 28, and an injection path 31 is formed between the guide plate 129 and the blade guide 28.
- the guide plate 129 has an opening 130, and the opening 128 and the opening 130 are overlapped with each other when the driving machine 10 is viewed from the front.
- the second latch 126 can enter and exit the injection path 31 through the opening 128.
- the controller 83 stops the electric motor 43 by detecting at least one of the push rod 32 being separated from the driven member W1 and the trigger switch 53 being turned off. Further, as shown in FIG. 27B, the pinion 41 of the rotating element 38 is engaged with the rack 42. The lower end of the driver blade 23 is positioned below the upper end of the stopper 48 positioned at the head in the magazine 49. That is, the driver blade 23 is stopped at the standby position.
- the shaft member 124 is urged to rotate clockwise in FIG. 26 by the urging force of the elastic member 127, and the second latch 126 is positioned in the injection path 31 from the openings 128 and 130. That is, the second latch 126 is located in the recess 42 b of the rack 42. Further, the second latch 126 is in contact with the cover 30 or the guide plate 129, and the shaft member 124 is stopped.
- the push rod 32 When the push rod 32 is pressed against the driven member W ⁇ b> 1, the push rod 32 operates in a direction approaching the bumper 25 against the urging force of the compression coil spring 120. Then, the push rod 32 contacts the first latch 125, and the shaft member 124 is rotated counterclockwise in FIG. Then, the second latch 126 is retracted from the recess 42b, and the second latch 126 and the rack 42 are released. Further, the first latch 125 is pressed against the pressing sensor 50, and the controller 83 detects that the push rod 32 is pressed against the driven member W1.
- the controller 83 When the controller 83 detects that the push rod 32 is pressed against the driven member W1 and also detects that the trigger switch 53 is turned on, the controller 83 drives the electric motor 43 to move the rotating element 38 to the position shown in FIG. Rotate counterclockwise in B). For this reason, the driver blade 23 operates in a direction approaching the top dead center, and the pressure in the pneumatic chamber 21 increases.
- the controller 83 continues to drive the electric motor 43 even after the stopper 48 is driven into the driven member W1, engages the pinion 41 and the rack 42, and moves the driver blade 23 from the bottom dead center to the top dead center. Move towards. As shown in FIG. 26, the controller 83 stops the electric motor 43 when the driver blade 23 rises to the standby position.
- the shaft member 124 is rotated clockwise in FIG. 30 by the urging force of the elastic member 127.
- the first latch 125 is moved away from the pressing sensor 50, and the pressing sensor is turned off.
- the second latch 126 enters the injection path 31 through the openings 128 and 130 as shown in FIG. Then, the second latch 126 engages with the rack 42, and the second latch 126 contacts the cover 30 or the guide plate 129, and the shaft member 124 stops.
- 31 and 32 show an example in which the push rod 32 is pressed against the driven member W1, the stopper 48 is hit with the driver blade 23, and the stopper 48 is buckled and deformed in the injection path 31. Indicates.
- the push rod 32 moves away from the driven member W1
- the push rod 32 moves away from the first latch 125.
- the shaft member 124 is rotated clockwise in FIG. 31 by the force of the elastic member 120
- the pressing sensor 50 is turned off, and the second latch 126 enters between the pinion 41 and the pinion 41. That is, the second latch 126 engages with the rack 42. Therefore, when the operator removes the stopper 48 from the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center.
- FIG. 34 shows an example in which the stopper 48 cannot be removed from the injection path 31 in a state where the push rod 32 is separated from the driven member W1.
- the operator presses the push rod 32 again against the driven member W1, and rotates the shaft member 124 counterclockwise in FIG. Then, the second latch 126 is released from the rack 42, and the pressing sensor 50 is turned on. In addition, the operator applies operating force to the trigger 52.
- the electric motor 43 is driven, the rotating element 38 rotates counterclockwise in FIG. 34, the pinion 41 and the rack 42 are engaged, and the driver blade 23 operates toward the top dead center. Then, the controller 83 stops the electric motor 43 when the driver blade 23 reaches the standby position.
- the electric motor 43 stops, but is supported and stopped by the rotation restricting mechanism so that the driver blade 23 is not operated by the force of the pneumatic chamber 21.
- the rotation restricting mechanism allows the rotating element 38 to rotate counterclockwise in FIG. 34 and prevents it from rotating clockwise.
- the second latch 126 described in the fifth embodiment corresponds to an engaging member.
- Embodiment 6 The specific example 1 of Embodiment 6 of a driving machine is demonstrated with reference to FIG.35 and FIG.36.
- a support mechanism 92 is provided on the blade guide 28.
- the support mechanism 92 includes a screw member 93 and a guide member 94 that supports the screw member 93.
- the screw member 93 includes a male screw shaft 95, a head portion 96 that is continuous with the male screw shaft 95, and a boss portion 97 that is continuous with the male screw shaft 95 at a location opposite to the head portion 96.
- the longitudinal direction of the screw member 93 is the same as the direction of the center line B1.
- the screw member 93 is supported by the guide member 94 so as to be rotatable and not movable in the longitudinal direction.
- An engaging member 98 is attached to the male screw shaft 95.
- the engaging member 98 has a female screw portion, is rotatable with respect to the male screw shaft 95, and is movable in the longitudinal direction of the screw member 93.
- the engaging member 98 cannot rotate with respect to the blade guide 28.
- a thrust bearing 101 is interposed between the head 96 and the guide member 94.
- the boss portion 97 has a groove.
- the driver blade 23 has a convex portion 99 as a rack different from the rack 42.
- the convex part 99 protrudes from the edge of the driver blade 23 opposite to the edge where the rack 42 is provided.
- the convex portion 99 is disposed above the engaging member 98 in the direction of the center line B1.
- Other configurations shown in FIGS. 35 and 36 are the same as those shown in FIG.
- the operator inserts the tip of the tool 100 into the groove of the boss portion 97, and the tool 100 is inserted.
- the screw member 93 is rotated in the first direction around the central axis.
- the engaging member 98 moves along the male screw shaft 95 of the screw member 93 in a direction approaching the head 96.
- the operator stops the tool 100 when the engaging member 98 comes into contact with the convex portion 99 as shown in FIG. 36, or at a position where the driver blade 23 is slightly pushed up. Further, the operator removes the clogged stopper 48 from the injection path 31.
- the load is transmitted to the screw member 93 via the convex portion 99 and the engagement member 98 so as to move the driver blade 23 toward the bottom dead center. Since the screw member 93 cannot move in the direction of the center line B ⁇ b> 1, a load for moving the driver blade 23 toward the bottom dead center is received by the blade guide 28 via the thrust bearing 101. That is, when the stopper 48 is clogged with the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center in the direction of the center line B1 with respect to the injection portion 27.
- the screw member 93 rotates and the engagement member 98 moves in the direction of the center line B1 with respect to the screw member 93.
- the engaging member 98 moves in a direction approaching the boss portion 97.
- the driver blade 23 moves toward the bottom dead center in a state where the convex portion 99 and the engaging member 98 are in contact with each other. That is, the engagement member 98 approaches the boss portion 97 in a state where the load of the driver blade 23 is received.
- An electric motor 102 is provided on the blade guide 28.
- the electric motor 102 is connected to the battery 47 through an electric circuit.
- the electric motor 102 can switch the rotation direction of the rotating shaft 103.
- the controller 83 controls the rotation, stop, and rotation direction of the rotating shaft 103 of the electric motor 102.
- a release switch 104 operated by an operator is provided, and a signal from the release switch 104 is input to the controller 83.
- a first bevel gear 105 is provided on the rotating shaft 103, and a second bevel gear 106 is provided on the head 96.
- the first bevel gear 105 meshes with the second bevel gear 106.
- the other configuration of the driving machine 10 shown in FIG. 37 is the same as that of the driving machine 10 shown in FIGS.
- the controller 83 determines that the stopper 48 is clogged in the injection path 31
- the controller 83 drives the electric motor 102 to rotate the rotating shaft 103 clockwise, for example, in FIG.
- the screw member 93 rotates, and the engaging member 98 moves in a direction approaching the head 96 along the male screw shaft 95 of the screw member 93.
- the controller 83 stops the electric motor 102 when the engaging member 98 comes into contact with the convex portion 99 as shown in FIG. 37 or at a position where the driver blade 23 is slightly pushed up. Further, the operator removes the clogged stopper 48 from the injection path 31.
- the load is received by the blade guide 28 via the screw member 93 and the thrust bearing 101 so as to move the driver blade 23 toward the bottom dead center. That is, when the stopper 48 is clogged with the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center in the direction of the center line B1 with respect to the injection portion 27.
- the controller 83 drives the electric motor 102 and rotates the rotating shaft 103 counterclockwise in FIG. Then, the screw member 93 rotates and the engaging member 98 moves in the direction of the center line B1 with respect to the screw member 93. Then, the driver blade 23 moves toward the bottom dead center in a state where the convex portion 99 and the engaging member 98 are in contact with each other. That is, the engagement member 98 approaches the boss portion 97 in a state where the load of the driver blade 23 is received. Then, the controller 83 stops the electric motor 102 after the driver blade 23 reaches the bottom dead center.
- the driving machine 10 may be provided with the manual switch 107 shown in FIG.
- the stopper 48 When the stopper 48 is clogged, the operator can operate the manual switch 107 to drive the electric motor 102 and rotate the rotating shaft 103 clockwise in FIG.
- a guide member 94 is provided at a place where the push rod 32 is disposed in the blade guide 28.
- the guide member 94 has a female screw hole 108.
- the center line of the female screw hole 108 is parallel to the center line B1.
- a convex portion 99 is provided on the same side edge of the driver blade 23 as the side edge on which the rack 42 is provided.
- the convex portion 99 is disposed between the rack 42 and the tip of the driver blade 23.
- a tool 109 that can be attached to and detached from the guide member 94 is provided.
- the tool 109 has a male screw portion 110, and the male screw portion 110 is inserted into the female screw hole 108 and can be rotated with respect to the female screw hole 108.
- Other configurations shown in FIGS. 38 and 39 are the same as those shown in FIG.
- the operator inserts the tip of the tool 109 into the female screw hole 108 of the guide member 94. Then, the tool 109 is rotated in the first direction by a manual operation or an electric tool. Then, the tool 109 rotates, and the tool 109 moves in a direction approaching the rotating element 38 in the direction of the center line B1. Then, the operator stops the tool 109 when the tip of the tool 109 comes into contact with the convex portion 99 as shown in FIG. 39 or at a position where the driver blade 23 is further pushed up. Further, the operator removes the clogged stopper 48 from the injection path 31.
- the load is transmitted to the blade guide 28 via the tool 109 and the guide member 94 so as to move the driver blade 23 toward the bottom dead center. Since the tool 109 is not movable in the direction of the center line B1, the load for moving the driver blade 23 toward the bottom dead center is received by the blade guide 28. That is, when the stopper 48 is clogged with the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center in the direction of the center line B1 with respect to the injection portion 27.
- the blade guide 28 has two mounting grooves 111. Further, a support mechanism 112 that can be attached to and detached from the blade guide 28 is provided.
- the support mechanism 112 includes a support frame 113 and a screw member 114 attached to the support frame 113.
- the screw member 114 has a male screw shaft 115.
- the support frame 113 includes a base portion 116, two arm portions 117 extending in parallel with each other from the base portion 116, and an engagement portion 118 provided on each of the two arm portions 117.
- the base 116 has a female screw hole 119.
- the other configuration shown in FIG. 40 is the same as the configuration shown in FIG.
- the support mechanism 112 is not attached to the blade guide 28.
- the stopper 48 is clogged in the injection path 31 and stops before the driver blade 23 reaches the bottom dead center as shown in FIG. 40, the operator moves the two engaging portions 118 to the mounting groove.
- the two engaging portions 118 are engaged with the blade guide 28, and the support frame 113 is attached to the blade guide 28.
- the screw member 114 moves relative to the support frame 113 and approaches the rotating element 38 in the direction of the center line B1. Move with.
- the load is transmitted to the blade guide 28 via the screw member 114 and the support frame 113 so as to move the driver blade 23 toward the bottom dead center. Since the support frame 113 does not move in the direction of the center line B ⁇ b> 1 with respect to the blade guide 28, the load that attempts to move the driver blade 23 toward the bottom dead center is received by the blade guide 28. That is, when the stopper 48 is clogged with the injection path 31, the driver blade 23 can be prevented from moving toward the bottom dead center in the direction of the center line B1 with respect to the injection portion 27.
- the two engaging portions 118 are extracted from the attachment groove 111, and the support mechanism 112 is removed from the blade guide 28.
- the driver blade 23 can be supported without using the rotational force of the electric motor 43 when the stopper 48 is clogged with the injection path 31. Further, since the driver blade 23 is supported using the screw member, the driver blade 23 can be supported by the support mechanism regardless of the position where the driver blade 23 stops in the direction of the center line B1. Moreover, after removing the fastener 48, the screw member can be moved steplessly by rotating the screw member. Therefore, it is possible to prevent the driver blade 23 from moving at high speed toward the bottom dead center.
- the driving machine is not limited to the above embodiment, and various changes can be made without departing from the scope of the driving machine.
- the driving machine may be a driving machine having a pneumatic chamber formed in the bellows, a piston fixed to the end of the bellows, and a guide member that operably supports the piston.
- the driving machine may have a structure in which the piston is operated by the elastic force of the spring.
- the spring includes a metal compression spring.
- the spring corresponds to the striking element.
- the guide member may be a linear rail in addition to the cylinder.
- the operation mechanism for moving the piston away from the bumper includes a pulley and a wire in addition to a rack and pinion mechanism. That is, the operation mechanism includes a structure that operates the piston with the pulling force of the wire.
- the driving machine includes a driving machine that supplies compressed air generated by the compressor to the pneumatic chamber via an air hose.
- the electric motor described in the embodiment includes a DC motor using a battery as a DC power source as a power source and an AC motor using an AC power source.
- the motor may be any one of a hydraulic motor, a pneumatic motor, and an internal combustion engine instead of the electric motor.
- the striker may be any one of a square shape, a rectangular shape, a square shape, a circular shape and the like in a plan view perpendicular to the first center line.
- the striker may have any shape such as a shaft shape or a blade shape.
- the stopper includes a U-shaped stopper in addition to the shaft-shaped nail.
- the driven member into which the stopper is driven may be wood, gypsum board, or the like.
- the first component member and the second component member are arranged so as to overlap each other in a plan view perpendicular to the first center line, and are perpendicular to the first center line in a cross-sectional plan view. It may not be a plan view.
- the striker includes a configuration in which the first center line, which is the central axis of the cylinder, is located at the center of the striker, and a configuration in which the first center line is located away from the center of the striker.
- the striker is only required to be movable in parallel with the first center line, and is provided at a position where the center of the striker and the first center line are separated from each other in plan view intersecting the first center line. It may be done.
- a driving machine which moves the cam plate 59 by moving a lock lever manually
- a driving machine contains the 1st example of a change.
- the controller of the driving machine determines that the nail is clogged when the driver blade 23 as the striker does not move to the bottom dead center.
- the cam plate 59 can be automatically moved by the actuator.
- the actuator includes a motor, and the controller controls the motor. Then, in the first modification example of the driving machine, when the controller determines that the nail is clogged, the cam plate 59 is moved using a motor to automatically restrict the movement of the driver blade 23.
- the driving machine includes a second modification.
- the second modified example of the driving machine is a configuration in which the movement of the driver blade 23 as a striker is restricted by moving the cam plate 59 by a moving mechanism, for example, a solenoid or a spring.
- the driving machine includes a third modification.
- the third modified example of the driving machine uses a solenoid or a spring or a fixing screw as an engaging member, and the engaging member is directly engaged with a driver blade 23 as a striker to restrict the movement of the driver blade 23. It is a structure to do.
- the engagement member can be removed unless the striker is removed. You may comprise so that it cannot do.
- the motor used for the driving machine includes an electric motor, a hydraulic motor, a pneumatic motor, and an engine. Control for switching the rotation direction of the engine between the first direction and the second direction is dealt with by providing a mechanism for switching the direction of the rotation element between the engine and the rotation element in the forward and reverse directions, and the rotation direction of the engine itself is the same. It's okay.
- the electric motor may be either a brush motor or a blurless motor.
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Abstract
Description
Claims (9)
- 止具が供給される射出部と、第1位置から第2位置へ向けて動作し、かつ、前記止具を被打込部材へ打ち込む打撃子と、前記打撃子に設けたラックと、を備えた打込機であって、前記ラックに係合し、前記打撃子を前記第2位置から前記第1位置に移動させる回転要素と、前記ラックに係合する係合部材と、を有し、前記打撃子は、前記回転要素が一回転する間に前記第2位置から前記第1位置に移動し、前記回転要素は、前記打撃子が前記第2位置から前記第1位置に移動した後に前記ラックとの係合が外れて前記第1位置から前記第2位置に向けて動作し、前記係合部材は、前記打撃子が前記第1位置から前記第2位置へ到達する前に停止すると、前記ラックに係合可能である、打込機。
- 前記係合部材は、前記打撃子が動作する方向に対して交差する方向に動作して前記打撃子に係合する、請求項1記載の打込機。
- 前記係合部材は、前記ラックから離れている待機位置と、前記ラックに係合する固定位置との間で移動可能であり、前記射出部は、前記打撃子が第1中心線方向に移動し、かつ、前記止具が供給される射出路を有し、前記射出路は、前記打撃子により打撃された前記止具が出る射出口を有し、前記係合部材は、前記待機位置から前記固定位置へ移動する過程で、前記射出口から離れるように、前記第1中心線に対して傾斜して移動する、請求項1または2記載の打込機。
- 前記係合部材が前記ラックに係合した状態を維持する固定機構が設けられ、前記固定機構は、作業者により操作され支持軸を中心として回動し、かつ、前記係合部材を動作させるレバーを有し、前記支持軸の第2中心線は、前記第1中心線と交差して配置されている、請求項3記載の打込機。
- 前記打撃子を前記第2位置から前記第1位置へ動作させる動力機構と、前記打撃子を前記第1位置から前記第2位置に向けて動作させる打撃要素と、が設けられ、前記動力機構は、前記ラックと、前記ラックに噛み合い、かつ、前記回転要素に設けたピニオンと、を有し、前記回転要素を回転及び停止するモータと、前記打撃子が前記第1位置から前記第2位置へ到達する前に停止すると、前記モータを回転して前記係合部材を前記ラックに係合して前記打撃子を停止位置に保持するコントローラと、が設けられ、前記係合部材は、前記射出部に設けられており、前記ラックに係合して前記打撃子を保持する、請求項4記載の打込機。
- 前記コントローラは、前記モータの回転方向を第1方向と第2方向とに切り替え可能であり、前記コントローラは、前記モータを前記第1方向に回転して前記係合部材を前記ラックに係合し、前記打撃子を前記第2位置から前記第1位置へ移動させる上昇制御と、前記打撃子が前記第1位置から前記第2位置へ到達する前に停止すると、前記モータを前記第1方向に回転して前記係合部材を前記ラックに係合して前記打撃子を停止位置に保持する保持制御と、 を実行する、請求項5記載の打込機。
- 前記打撃子を前記第1位置から前記第2位置に向けて動作させる打撃要素が設けられ、前記係合部材は、前記打撃子が前記第2位置から前記第1位置へ向けて動作することを許容し、かつ、前記打撃子が前記打撃要素によって前記第1位置から前記第2位置に向けて動作する場合に、前記打撃子が前記第2位置に到達する前に停止すると、前記ラックに係合して前記打撃子の動作を阻止するラッチを含む、請求項1記載の打込機。
- 前記打撃子は、ピストン及びドライバブレードを有し、前記ラックは、前記ドライバブレードの長手方向に配置した複数の歯を有し、前記複数の歯のうち前記ピストンから最も離れた箇所に配置されている歯と、前記ドライバブレードの先端との間に補助ラックが設けられ、前記ラッチが、前記補助ラックに係合することで、前記打撃子を、前記第1位置と前記第2位置との間に保持する、請求項7記載の打込機。
- 前記回転要素は、径方向に変位するカム部を有し、前記カム部に接触し、かつ、前記回転要素の回転に伴い動作するアームが設けられ、前記ラッチは、前記アームが動作すると、前記ラックまたは前記補助ラックとの係合が解除される、請求項8記載の打込機。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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EP16807377.3A EP3308907B1 (en) | 2015-06-10 | 2016-06-02 | Driving machine |
US15/580,638 US10843317B2 (en) | 2015-06-10 | 2016-06-02 | Driver |
CN201680033808.7A CN107708934B (zh) | 2015-06-10 | 2016-06-02 | 打入机 |
JP2017523605A JP6485544B2 (ja) | 2015-06-10 | 2016-06-02 | 打込機 |
US17/073,033 US11590638B2 (en) | 2015-06-10 | 2020-10-16 | Driver |
US18/113,270 US20230211483A1 (en) | 2015-06-10 | 2023-02-23 | Driver |
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JP2015193919 | 2015-09-30 | ||
JP2016072920 | 2016-03-31 | ||
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US15/580,638 A-371-Of-International US10843317B2 (en) | 2015-06-10 | 2016-06-02 | Driver |
US17/073,033 Continuation US11590638B2 (en) | 2015-06-10 | 2020-10-16 | Driver |
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WO2016199670A1 true WO2016199670A1 (ja) | 2016-12-15 |
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PCT/JP2016/066417 WO2016199670A1 (ja) | 2015-06-10 | 2016-06-02 | 打込機 |
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US (3) | US10843317B2 (ja) |
EP (1) | EP3308907B1 (ja) |
JP (1) | JP6485544B2 (ja) |
CN (1) | CN107708934B (ja) |
WO (1) | WO2016199670A1 (ja) |
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US11577372B2 (en) | 2019-06-14 | 2023-02-14 | Milwaukee Electric Tool Corporation | Lifter mechanism for a powered fastener driver |
US12048992B2 (en) | 2019-06-14 | 2024-07-30 | Milwaukee Electric Tool Corporation | Lifter mechanism for a powered fastener driver |
US11618145B2 (en) | 2019-06-14 | 2023-04-04 | Milwaukee Electric Tool Corporation | Lifter mechanism for a powered fastener driver |
WO2020261878A1 (ja) * | 2019-06-27 | 2020-12-30 | 工機ホールディングス株式会社 | 打込機 |
JP7248115B2 (ja) | 2019-06-27 | 2023-03-29 | 工機ホールディングス株式会社 | 打込機 |
CN114025921A (zh) * | 2019-06-27 | 2022-02-08 | 工机控股株式会社 | 打入机 |
JPWO2020261878A1 (ja) * | 2019-06-27 | 2020-12-30 | ||
CN113070849A (zh) * | 2020-01-06 | 2021-07-06 | 朱益民 | 一种打钉工具 |
CN113070849B (zh) * | 2020-01-06 | 2024-07-19 | 朱益民 | 一种打钉工具 |
JP7452624B2 (ja) | 2020-03-05 | 2024-03-19 | 工機ホールディングス株式会社 | 打込機 |
JPWO2021176909A1 (ja) * | 2020-03-05 | 2021-09-10 | ||
WO2021176909A1 (ja) | 2020-03-05 | 2021-09-10 | 工機ホールディングス株式会社 | 打込機 |
US11759928B2 (en) | 2021-05-20 | 2023-09-19 | Makita Corporation | Driving tool |
Also Published As
Publication number | Publication date |
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US20180154505A1 (en) | 2018-06-07 |
EP3308907B1 (en) | 2021-04-14 |
JP6485544B2 (ja) | 2019-03-20 |
JPWO2016199670A1 (ja) | 2018-03-08 |
US20230211483A1 (en) | 2023-07-06 |
EP3308907A4 (en) | 2019-01-23 |
US10843317B2 (en) | 2020-11-24 |
US11590638B2 (en) | 2023-02-28 |
EP3308907A1 (en) | 2018-04-18 |
CN107708934A (zh) | 2018-02-16 |
US20210031347A1 (en) | 2021-02-04 |
CN107708934B (zh) | 2022-01-11 |
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