WO2021084993A1 - 打込機 - Google Patents
打込機 Download PDFInfo
- Publication number
- WO2021084993A1 WO2021084993A1 PCT/JP2020/036449 JP2020036449W WO2021084993A1 WO 2021084993 A1 WO2021084993 A1 WO 2021084993A1 JP 2020036449 W JP2020036449 W JP 2020036449W WO 2021084993 A1 WO2021084993 A1 WO 2021084993A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric motor
- driving machine
- striking portion
- striking
- machine according
- Prior art date
Links
- 238000002347 injection Methods 0.000 claims abstract description 60
- 239000007924 injection Substances 0.000 claims abstract description 60
- 230000004913 activation Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 27
- 239000003638 chemical reducing agent Substances 0.000 description 23
- 238000001514 detection method Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 229920003051 synthetic elastomer Polymers 0.000 description 4
- 239000005061 synthetic rubber Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
- B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
- B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
- B25C1/182—Feeding devices
- B25C1/184—Feeding devices for nails
Definitions
- the present invention is a driving machine having an injection unit, a magazine capable of arranging and accommodating a plurality of stoppers sent to the injection unit in a spiral shape, and a striking unit capable of striking the stoppers sent from the magazine to the injection unit. Regarding.
- Patent documents include a driving machine having an injection unit, a magazine capable of accommodating a plurality of stoppers sent to the injection unit in a spiral shape, and a striking unit capable of striking the stoppers sent from the magazine to the injection unit. It is described in 1.
- the driving machine described in Patent Document 1 includes a housing containing a cylinder, a nose portion as an injection portion, a handle, a cylinder, a magazine, a striking portion having a rack, a cylindrical portion, a pressure accumulator chamber, a motor case, an electric motor, and a bevel gear. It has a cam plate with protrusions and a trigger provided on the handle.
- the handle is continuously provided on the housing and the magazine accommodates the nail as a stopper to be fed to the injection section.
- the striking part is operable in the cylinder.
- the cylindrical portion is fixed to the cylinder, and the accumulator chamber is formed in the cylindrical portion.
- the motor case is connected to the housing and the electric motor is housed in the motor case.
- the bevel gear is rotated by an electric motor, and the cam plate is rotated by the bevel gear.
- the electric motor rotates when the trigger is operated.
- the bevel gear is rotated by the rotational force of the electric motor, and the cam plate is rotated.
- the protrusion provided on the cam plate engages with the rack, the striking portion rises and the pressure in the accumulator chamber rises.
- the striking part is lowered by the pressure of the accumulator chamber, and the striking part hits the nail sent from the magazine to the nose part.
- the inventor of the present application has a problem that the operability of a driving machine having a columnar magazine containing a stopper wound in a roll shape and an electric motor for operating a striking portion may be deteriorated. I recognized.
- An object of the present invention is to improve the operability of a driving machine provided with a magazine for storing a stopper connected in a roll shape and an electric motor for operating a striking portion.
- the driving machine of one embodiment can accommodate a plurality of connected fasteners in a roll shape, and has a cylindrical magazine, an injection unit to which the stoppers are supplied from the magazine, and the injection.
- a striking portion capable of operating the stopper supplied to the portion in a first direction capable of striking and operating in a second direction opposite to the first direction, and the striking portion A first urging portion that operates in the first direction, an electric motor that operates the striking portion in the second direction, a housing that supports the striking portion and the electric motor, and a striking portion from the housing to the striking portion. It has a handle protruding in a direction intersecting the operating direction, the electric motor has a rotating shaft, and the rotating shaft intersects a plane orthogonal to the operating direction of the striking portion. It extends in the direction.
- the driving machine of one embodiment it is possible to improve the operability of the driving machine provided with a magazine for storing the stoppers connected in a roll shape and an electric motor for operating the striking portion. is there.
- FIG. 5 is a side sectional view taken along line VV of FIG. 1 showing a state in which the supply unit is operated after the driver blade hits a nail.
- FIG. 5 is a side sectional view taken along line VV of FIG. 1 showing a state in which the supply unit operates to send the nail to the injection path.
- FIG. 5 is a side sectional view taken along line XX of FIG. It is a partial plan sectional view which shows the modification example of the driving machine of FIG. It is a front view which shows the driving machine of Embodiment 3. It is a right side view of the driving machine of FIG. It is a front view which shows the reference example of the driving machine. It is a right side view of the driving machine of FIG.
- the driving machine 10 shown in FIGS. 1 and 2 includes a main body 11, a striking unit 12, an injection unit 13, a power supply unit 14, an electric motor 15, a speed reducer 16, a power transmission unit 17, and a pressure chamber 18. It has a supply unit 19, a magazine 20, and a control unit 38.
- the main body 11 has a housing 21, a handle 22 protruding from the housing 21, and a mounting portion 23 connected to the end of the handle 22 opposite to the housing 21.
- the head cover 24 is fixed to the housing 21.
- the cylinder 25 is housed in the housing 21.
- the accumulator container 70 is arranged in the housing 21 and in the head cover 24.
- the accumulator container 70 is fixed to the cylinder 25.
- the pressure chamber 18 is formed in the cylinder 25 and the accumulator container 70.
- the striking portion 12 has a piston 26 and a driver blade 27.
- the piston 26 and the driver blade 27 may be an integral part.
- the piston 26 and the driver blade 27 may be separate parts, and the piston 26 and the driver blade 27 may be fixed.
- the piston 26 is arranged in the cylinder 25.
- the striking portion 12 can reciprocate in the direction along the center line A1 of the cylinder.
- the striking portion 12 can strike the stopper by operation.
- the housing 21 indirectly supports the striking portion 12 via the cylinder 25.
- the pressure chamber 18 is filled with a compressible fluid.
- a compressible gas air or an inert gas can be used.
- the inert gas includes, for example, nitrogen gas and rare gas.
- a bumper made of synthetic rubber is provided in the cylinder 25.
- the driver blade 27 has a rack 46.
- the rack 46 is composed of protrusions arranged at intervals in the operating direction.
- the injection portion 13 is attached to the housing 21.
- the injection unit 13 has an injection path 34 shown in FIG.
- the injection path 34 is a hole or a space in the direction along the center line A1.
- the driver blade 27 can operate in the injection path 34.
- the injection unit 13 guides the driver blade 27 so that the operating direction is along the center line A1 and determines the nail driving direction.
- the push lever 28 is attached to the injection portion 13. The push lever 28 is in contact with the object W1 into which the nail is to be driven and is separated from the object W1.
- FIGS. 1 and 2 show a state in which the tip of the push lever 28 is brought close to the surface of the wall, which is an example of the object W1.
- a push lever switch is provided on the injection portion 13.
- a push lever switch (not shown) detects whether the push lever 28 is in contact with the object W1 or is separated from the object W1 and outputs a signal. The signal output from the push lever switch is input to the control unit 38.
- the magazine 20 has a drum portion 29 and a connecting portion 30.
- the drum portion 29 has a cylindrical appearance.
- the drum portion 29 is hollow, and the drum portion 29 can accommodate the nail 31.
- the drum portion 29 is supported by the mounting portion 23 by the bracket 69. As shown in FIG. 1, the magazine 20 projects from the injection portion 13 in a direction intersecting the center line A1.
- the plurality of nails 31 are connected to each other by the connecting wire 32, and the plurality of nails 31 are arranged in the drum portion 29 in a spiral state, that is, in a rolled state.
- the connecting portion 30 is connected to the drum portion 29, and the connecting portion 30 is fixed to the injection portion 13.
- the connection portion 30 has a supply path 33, and the supply path 33 is connected to the inside of the drum portion 29 and the injection path 34.
- the supply path 33 guides the nail 31 from the inside of the drum portion 29 to the injection path 34.
- the electric motor 15 is arranged in the housing 21 and is supported by the housing 21.
- the electric motor 15 is a brushless motor.
- the center line A2, which is the center of rotation of the rotation shaft 35 of the electric motor 15, is parallel to the center line A1.
- the center line A2 of the electric motor 15 is arranged so as to intersect the plane orthogonal to the center line A1 of the cylinder.
- the electric motor 15 is arranged adjacent to the cylinder 25. As shown in FIG. 1, in the electric motor 15, the center line A2 is arranged closer to the handle 22 than the center line A1.
- the center line A2 of the electric motor 15 may intersect the center line A1 at an angle different from 90 degrees.
- the speed reducer 16 is arranged in the housing 21.
- the speed reducer 16 and the power transmission unit 17 are arranged between the electric motor 15 and the injection unit 13 in the direction along the center line A2.
- the speed reducer 16 is arranged between the electric motor 15 and the power transmission unit 17 in the direction along the center line A2.
- the speed reducer 16 has an input element, a planetary gear mechanism, and an output element 36.
- the input element is connected to the rotating shaft 35.
- the speed reducer 16 reduces the rotational speed of the output element 36 with respect to the rotational speed of the input element, and amplifies the rotational force, that is, the torque.
- the power supply unit 14 is a DC power supply capable of supplying electric power to the electric motor 15.
- the power supply unit 14 is a battery pack having a storage case and a plurality of battery cells housed in the storage case.
- the battery cell is a secondary battery that can be charged and discharged, and 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 as the battery cell.
- FIG. 1 is an example of a first virtual plane along the center line A1 which is the operating direction of the striking portion 12 and along the direction in which the handle 22 protrudes from the housing 21.
- the first virtual plane can be defined as a front view of the driving machine 10.
- FIG. 1 shows a structure in which the driving machine 10 is viewed from the front.
- the trigger 37 is attached to the handle 22.
- the trigger 37 can be actuated with respect to the handle 22. As shown in FIG. 4, the user can grip the handle 22 with his / her hand 68 and add / release the operating force to the trigger 37 with his / her fingers.
- the trigger 37 is arranged between the central position of the handle 22 and the outer surface of the housing 21 in the direction in which the handle 22 protrudes from the housing 21.
- the control unit 38 is provided in the mounting unit 23.
- the control unit 38 is a microcomputer having a circuit board, an input / output port, a storage circuit, an arithmetic processing unit, and the like.
- the circuit board 39 is provided in the housing 21 and the trigger switch is provided in the handle 22.
- the trigger switch detects whether the operating force is applied to or released from the trigger 37, and outputs a signal.
- the signal output from the trigger switch is input to the control unit 38.
- An inverter circuit is provided on the circuit board 39.
- the inverter circuit is arranged in the electric circuit between the battery cell of the power supply unit 14 and the electric motor 15.
- the inverter circuit has a plurality of switching elements.
- a position detection sensor and a phase detection sensor are provided in the housing 21.
- the position detection sensor detects the position of the striking portion 12 in the direction along the center line A1 and outputs a signal.
- the phase detection sensor detects the phase of the electric motor 15 in the rotation direction and outputs a signal.
- the control unit 38 processes the signal of the trigger switch, the signal of the push lever switch, the signal of the position detection sensor, and the signal of the phase detection sensor, and controls the inverter circuit.
- the control unit 38 can 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.
- FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, but for convenience, the power transmission unit 17 is shown by a solid line and the pin wheel 40 is shown by a chain double-dashed line.
- the power transmission unit 17 and the pin wheel 40 are provided in the housing 21.
- the power transmission unit 17 and the pin wheel 40 have a function of transmitting the power of the electric motor 15 to the striking unit 12.
- the power transmission unit 17 has a drive side bevel gear 41, a driven side bevel gear 42, a first spur gear 43, and a second spur gear 44.
- the drive-side bevel gear 41 is fixed to the output element 36 of the speed reducer 16.
- the driven side bevel gear 42 meshes with the drive side bevel gear 41.
- the first spur gear 43 can rotate integrally with the driven side bevel gear 42.
- the second spur gear 44 meshes with the first spur gear 43.
- the pin wheel 40 can rotate integrally with the second spur gear 44, and the pin wheel 40 has a plurality of pinion pins 45 arranged at intervals in the rotation direction.
- the plurality of pinion pins 45 are independently engaged with and disengaged from the rack 46 of the driver blade 27, respectively.
- the power of the electric motor 15 is transmitted to the striking portion 12. Therefore, the striking portion 12 operates in the second direction B2 against the air pressure in the pressure chamber 18 as shown in FIG.
- the second direction B2 is opposite to the first direction B1.
- the supply unit 19 is provided in the housing 21 and over the connection unit 30 as shown in FIG.
- the supply unit 19 is a device that sends the nail 31 housed in the magazine 20 to the injection path 34.
- the supply unit 19 includes an engaging unit 47, a feed piston 48, a feeder arm 49, and a feeder 50. It protrudes from the outer peripheral surface of the output element 36 of the engaging portion 47.
- a tubular holder 51 is fixed to the injection portion 13.
- the feed piston 48 is capable of reciprocating the connecting portion 30 along the direction protruding from the injection portion 13.
- the injection unit 13 has an injection unit cover 13A that can be opened and closed.
- the injection portion cover 13A is open on the side opposite to the side on which the feeder 50 is provided with respect to the supply path 33.
- the injection portion cover 13A has a check claw 13B.
- the check valve 13B is arranged in the supply path 33.
- the check claw 13B can be operated with respect to the injection portion cover 13A.
- the check valve 13B can be retracted from the path through which the nail 31 passes in the supply path 33.
- a spring 52 is provided in the holder 51, and the spring 52 urges the feed piston 48 in a direction away from the injection portion 13.
- the feed piston 48 in which the stopper 56 is attached to the holder 51 and is urged by the spring 52, comes into contact with the stopper 56 and stops.
- the feed piston 48 has an engaging portion 58. As the output element 36 rotates, the engaging portion 47 engages and disengages from the engaging portion 58.
- the feeder arm 49 is fixed to the feed piston 48.
- the feeder 50 can be operated within a predetermined angle with respect to the support shaft 57 of the feeder arm 49.
- the feeder 50 has a protrusion 54.
- a spring 55 is provided between the feeder arm 49 and the feeder 50. The spring 55 urges the feeder 50 in a direction closer to the supply path 33.
- the control unit 38 detects at least one of the fact that the operating force on the trigger 37 is released or the push lever 28 is separated from the object W1, the control unit 38 controls the inverter circuit to control the electric motor 15. Stop supplying power to the inverter. Therefore, the electric motor 15 is stopped, and the striking portion 12 is stopped at the standby position.
- the standby position of the striking portion 12 will be described assuming that the piston 26 is separated from the bumper.
- the standby position of the striking portion 12 is a position close to the top dead center.
- the top dead center of the striking portion 12 is the position where the piston 26 is most distant from the injection portion 13 in the direction along the center line A1.
- the air pressure in the pressure chamber 18 is constantly applied to the striking portion 12, and the operating force received by the striking portion 12 is transmitted to the pin wheel 40 via the rack 46.
- the rotation regulation mechanism provided in the speed reducer 16 prevents the output element 36 from rotating, and the striking portion 12 is stopped at the standby position.
- control unit 38 When the control unit 38 detects that an operating force is applied to the trigger 37 and the push lever 28 is in contact with the object W1, the control unit 38 controls the inverter circuit to supply the electric power of the power supply unit 14 to the electric motor 15. Then, the electric motor 15 is rotated. The rotational force of the electric motor 15 is transmitted to the pin wheel 40 via the speed reducer 16, the drive side bevel gear 41, the driven side bevel gear 42, the first spur gear 43, and the second spur gear 44.
- the striking portion 12 operates in the second direction B2, that is, rises.
- the pressure in the pressure chamber 18 rises.
- the striking portion 12 operates in the first direction B1 under the pressure of the pressure chamber 18, that is, descends.
- the driver blade 27 strikes one nail 31 in the injection path 34, and the nail 31 is driven into the object W1. Further, the piston 26 collides with the bumper after the nail 31 is driven into the object W1.
- the control unit 38 processes the signal of the position detection sensor to detect the position of the striking unit 12 in the direction of the center line A1 and detects whether or not the striking unit 12 has reached the standby position.
- the control unit 38 stops the electric motor 15 when the striking unit 12 reaches the standby position.
- the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are at least partially different in the first virtual plane shown in FIG. Specifically, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are all different in the direction along the center line A1. Further, in FIG. 1, in the direction in which the handle 22 and the magazine 20 are projected from the housing 21, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are at least partially different. Specifically, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are all different.
- the electric motor 15, the reduction gear 16 and the power transmission unit 17 are arranged in the housing 21, and in FIG. 1, the electric motor 15 is located near the center line A2 between the center line A1 and the magazine 20 from the head cover 24 side.
- the speed reducer 16 and the power transmission unit 17 are arranged in this order. Therefore, the heavy speed reducer 16 can be arranged at the connection point between the handle 22 and the housing 21. Further, the electric motor 15 and the power transmission unit 17 can be arranged on both sides of the speed reducer 16 in the direction along the center line A2. Therefore, the center of gravity G1 of the driving machine 10 is located at the connection point between the handle 22 and the housing 21 in the driving machine 10 shown in FIG.
- the user holds the handle 22 with his / her hand 68 and drives in as shown in FIG.
- An example shows a situation in which the attitude of the machine 10 is changed.
- the distance from the position where the handle 22 is held by the hand 68 to the center of gravity G1, that is, the arm of the moment is shortened as much as possible. be able to. That is, it is possible to reduce the operating force applied to the handle 22 by the user in order to change the posture of the driving machine 10. Therefore, the operability of lifting the tip of the push lever 28 and bringing the tip of the push lever 28 closer to the object W1 is improved.
- FIG. 2 is an example of a second virtual plane that is along the operating direction of the striking portion 12 and intersects the direction in which the handle 22 protrudes from the housing 21.
- the second virtual plane can be defined as the side surface of the driving machine 10.
- the center of gravity G1 is arranged between the center line A1 and the center line A2.
- the electric motor 15 and the speed reducer 16 are arranged in the housing 21. Therefore, the mechanism protruding from the housing 21 can be reduced, and the contact point between the tip of the push lever 28 and the object W1 can be easily visually recognized.
- the object W1 may be a wall, a floor, a ceiling, or the like.
- the operation of the supply unit 19 will be described.
- the striking portion 12 is stopped at the standby position, that is, before the driver blade 27 strikes the nail 31, the engaging portion 47 and the engaging portion 58 are engaged with each other as shown in FIG. Moreover, the output element 36 is stopped. Therefore, the feed piston 48 is stopped at a position close to the injection portion 13. Further, the protrusion 54 of the feeder 50 comes into contact with the nail 31 located first in the feed direction C1 of the nail 31 and stops. Further, the protrusion 54 is located between the first nail 31 in the feed direction C1 and the second nail 31 in the feed direction C1. The first nail 31 in the feed direction C1 is located in the injection path 34.
- the feed piston 48 Operates in the direction D1 away from the injection portion 13 by the force of the spring 52. Further, by the operation of the feed piston 48, the protrusion 54 is pressed against the first nail 31A in the feed direction C1 among the nails 31 in the supply path 33, and the feeder 50 is counterclockwise at a predetermined angle ⁇ 1. Operate.
- the feeder 50 When the protrusion 54 gets over the first nail 31A in the feed direction C1, the feeder 50 operates clockwise at a predetermined angle ⁇ 2 by the urging force of the spring 55. Therefore, the protrusion 54 enters between the first nail 31A and the second nail 31B as shown in FIG. 7.
- the check valve 13B prevents the other nail 31 from moving in the direction opposite to the feed direction C1.
- the check claw 13B can retreat from the supply path 33 and does not hinder the movement of the nail 31 when the nail 31 moves in the feed direction C1.
- the engaging portion 47 engages with the engaging portion 58 due to the rotation of the output element 36
- the feed piston 48 operates in the direction D2 approaching the injection portion 13 as shown in FIG. 5 against the force of the spring 52. To do.
- the protrusion 54 of the feeder 50 feeds the first nail 31A to the injection path 34 in the feed direction C1, and the engaging portion 47 and the engaging portion 58 are engaged with each other as shown in FIG.
- the output element 36 is stopped in this state.
- the electric motor 15 has both a function of operating the striking portion 12 in the second direction B2 and a function of operating the feed piston 48 and the feeder arm 49 in the direction D2.
- the arrangement area R1 of the electric motor 15 and the arrangement area R2 of the magazine 20 are partially located in a direction intersecting the center line A1 which is the same as the operation direction of the striking portion 12. It's a duplicate. Therefore, it is possible to suppress an increase in the width of the driving machine 10.
- the power transmission unit 17 includes a third spur gear 60, a fourth spur gear 61, a large gear 62, a drive side bevel gear 41, and a driven side bevel gear 42. It has a first spur gear 43, a second spur gear 44, and a pin wheel 40.
- the third spur gear 60 is fixed to the rotating shaft 35.
- the large gear 62 is annular and is arranged about the center line A1.
- the inner diameter of the large gear 62 is larger than the outer diameter of the cylinder 25, and the large gear 62 is supported by the cylinder 25 via a bearing 63. Therefore, the large gear 62 can rotate about the center line A1.
- the third spur gear 60 is meshed with the large gear 62.
- the fourth spur gear 61 is meshed with the large gear 62, and the fourth spur gear 61 does not revolve around the center line A1.
- the fourth spur gear 61 can rotate integrally with the drive side bevel gear 41.
- the arrangement position of the third spur gear 60 and the arrangement position of the fourth spur gear 61 are different in the rotation direction of the large gear 62.
- the driving machine 10 shown in FIGS. 8 and 9 other configurations are the same as those of the driving machine 10 shown in FIGS. 1 and 2. Further, the driving machine shown in FIGS. 8 and 9 includes a supply unit 19 shown in FIG. 8 and 9 show a state in which the tip of the push lever 28 is brought close to the surface of the wall, which is an example of the object W1.
- the rotational force of the electric motor 15 is transmitted to the drive-side bevel gear 41 via the third spur gear 60, the large gear 62, and the fourth spur gear 61.
- the striking portion 12 shown in FIG. 9 operates in the same manner as the striking portion 12 shown in FIG.
- the arrangement area of the electric motor 15 and the arrangement area of the cylindrical magazine 20 in the first virtual plane shown in FIG. 8 are at least partially different. Specifically, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are all different in the direction along the center line A1. Further, in FIG. 8, in the direction in which the handle 22 protrudes from the housing 21, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are all different. Further, the electric motor 15 and the drive transmission mechanism 17 are separately arranged on both sides of the striking portion 12. Therefore, when the user holds the handle 22 by hand and lifts the driving machine 10 as shown in FIG. 4, the operability of bringing the tip of the push lever 28 closer to the object W1 is improved.
- the electric motor 15, the speed reducer 16 and the power transmission unit 17 are arranged in the housing 21. Further, in FIG. 8, the electric motor 15 and the power transmission unit 17 are arranged in this order from the head cover 24 side in the vicinity of the center line A2 between the center line A1 and the magazine 20.
- the power transmission unit 17 has a third spur gear 60, a fourth spur gear 61, and a large gear 62. Then, the heavy third spur gear 60 and the fourth spur gear 61 are arranged at the connection points between the handle 22 and the housing 21.
- an electric motor 15 for both sides of the third spur gear 60 and the fourth spur gear 61, an electric motor 15, a drive side bevel gear 41, a driven side bevel gear 42, a first spur gear 43, and a second spur gear 43 are provided.
- the gear 44 and the pin wheel 40 can be arranged. Therefore, the center of gravity G1 of the driving machine 10 is located at the connection point between the handle 22 and the housing 21 shown in FIG. Therefore, when the user applies an operating force to the handle 22 to change the posture of the driving machine 10, the required operating force can be reduced.
- the arrangement area R1 of the electric motor 15 and the arrangement area R2 of the magazine 20 are arranged in a direction intersecting the center line A1 along the operating direction of the striking portion 12. Some overlap. Therefore, it is possible to suppress an increase in the width of the driving machine 10.
- the center line A1 is arranged between the electric motor 15 and the third spur gear 60, the fourth spur gear 61, the drive side bevel gear 41, and the driven side bevel gear 42.
- the center of gravity G1 is arranged so as to overlap the center line A1. Therefore, when the driving machine 10 is lifted and the tip of the push lever 28 is brought into contact with the object W1 as shown in FIG. 4, it is possible to prevent the driving machine 10 from tilting to either the left or right side, and the driving machine 10 can be prevented from tilting. It becomes easier to maintain the posture of.
- the electric motor 15 is arranged in the housing 21. Therefore, the mechanism protruding from the housing 21 can be reduced, and the contact point between the tip of the push lever 28 and the object W1 can be easily visually recognized.
- the object W1 may be located on a wall, floor, ceiling, or the like.
- FIG. 11 is an example in which a part of the driving machine 10 shown in FIG. 9 is changed.
- An electric motor 64 for driving the fourth spur gear 61 is provided exclusively.
- the electric motor 64 is provided in the housing 21, and the rotating shaft 65 of the electric motor 64 is connected to the fourth spur gear 61.
- the control unit 38 controls the rotation and stop of the electric motor 15.
- the center line A3 of the electric motor 64 is parallel to the center line A1 and the center line A2.
- the center line A1 is arranged between the center line A2 and the center line A3. Both the rotational force of the electric motor 15 and the rotational force of the electric motor 64 are transmitted to the fourth spur gear 61.
- the other configuration of the driving machine 10 shown in FIG. 11 is the same as the configuration of the driving machine 10 shown in FIGS. 8 and 9, and the same effect can be obtained.
- the output of each electric motor can be reduced. Therefore, the size of each electric motor can be reduced, and the width of the housing 11 can be suppressed.
- the torque for driving the striking portion 12 may be small.
- the striking portion 12 is stopped at the bottom dead center, immediately after the striking portion 12 is operated toward the top dead center, or when the striking portion 12 and the pin wheel 40 are disengaged. Etc. correspond to this case. In such a case, only one of the electric motors 15 and 64 can be driven.
- a large torque may be required to operate the striking portion 12.
- the striking portion 12 is close to top dead center. In such a case, it is possible to drive both the electric motors 15 and 64.
- the main body 11 of the driving machine 10 shown in FIGS. 12 and 13 has a housing 21, a mounting portion 23, a handle 22, and a motor case 66.
- the motor case 66 is connected to the mounting portion 23 and the housing 21.
- the motor case 66 has a tubular shape.
- the direction in which the motor case 66 protrudes from the housing 21 is substantially the same as the direction in which the handle 22 protrudes from the housing 21.
- the electric motor 15 and the speed reducer 16 are provided in the motor case 66.
- the center of rotation of the rotation shaft of the electric motor 15 is the center line A4.
- the speed reducer 16 is arranged around the center line A4.
- the speed reducer 16 is arranged between the electric motor 15 and the housing 21 in the direction along the center line A4.
- FIG. 12 shows an example in which the center line A1 and the center line A4 intersect at an angle different from 90 degrees.
- the center line A4 of the electric motor 15 is arranged so as to intersect the plane orthogonal to the center line A1 of the cylinder.
- FIG. 12 shows a state in which the tip of the push lever 28 is brought close to the surface of the wall, which is an example of the object W1.
- the power transmission unit 67 is arranged in the housing 21.
- the power transmission unit 67 has, for example, a gear train.
- the output element of the speed reducer 16 is connected to the pin wheel 40 via the power transmission unit 67.
- the control unit 38 controls the rotation, stop, and rotation speed of the electric motor 15.
- the rotational force of the electric motor 15 is transmitted to the pin wheel 40 via the speed reducer 16 and the power transmission unit 67.
- the driving machine 10 shown in FIGS. 12 and 13 has a supply unit 19 shown in FIG. A part of the power transmitted from the electric motor 15 to the power transmission unit 67 is transmitted to the supply unit 19 via the output element 36.
- the nail 31 in the cylindrical magazine 20 is sent to the injection path 34 by the supply unit 19.
- the driver blade 27 hits the nail 31 sent to the injection path 34.
- the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are at least partially different in the first virtual plane shown in FIG. Specifically, the arrangement area of the electric motor 15 and the arrangement area of the magazine 20 are all different in the direction along the center line A1 representing the operation direction of the striking portion 12. Further, the motor case 66 is arranged between the handle 22 and the magazine 20 in the direction along the center line A1. The electric motor 15 and the speed reducer 16 are arranged in the motor case 66. Therefore, when the user holds the handle 22 with his / her hand 68 and lifts the driving machine 10 as shown in FIG. 4, the operability of bringing the tip of the push lever 28 closer to the object W1 is improved.
- the mounting portion 23 side of the motor case 66 is arranged so as to be above the housing 11 side. Further, the electric motor 15, the speed reducer 16, and the power transmission unit 67 are arranged in the housing 21. Therefore, the center of gravity G1 of the driving machine 10 is arranged between the portion where the handle 22 is connected to the housing 21 and the portion where the motor case 66 is connected to the housing 21 in the direction along the center line A1. ing.
- the required operating force can be reduced.
- the electric motor 15 and the speed reducer 16 are arranged between the handle 11 and the magazine 20. Therefore, the width of the housing 21 can be minimized, and it becomes easy to drive into the corner portion. That is, it is easier to drive into the corners.
- the arrangement area of the drum portion 29 of the magazine 20, the arrangement area of the electric motor 15, and the arrangement area of the handle 22 overlap at least in a part. Therefore, the center of gravity G1 of the driving machine 10 is located within the arrangement area of the handle 22.
- the driving machine 10 shown in FIGS. 14 and 15 is a reference example.
- FIG. 14 when the driving machine 10 is viewed from the front, the arrangement area of the electric motor 15 and the arrangement area of the drum portion 29 of the magazine 20 partially overlap.
- the center line A4 and the center line A1 intersect at an angle of approximately 90 degrees.
- FIG. 15 in which the driving machine 10 of FIG. 14 is viewed from the right side, the arrangement area of the electric motor 15 and the arrangement area of the drum portion 29 of the magazine 20 are totally different.
- the connecting portion 30 shown in FIG. 15 is arranged so as to be inclined with respect to the center line A4.
- the other configurations of the driving machine 10 shown in FIGS. 14 and 15 are the same as the other configurations of the driving machine 10 shown in FIGS. 12 and 13.
- the driving machine 10 is an example of a driving machine.
- the striking portion 12 is an example of the striking portion.
- the nail 31 is an example of a stopper.
- the magazine 20 is an example of a magazine.
- the injection unit 13 is an example of an injection unit.
- the first direction B1 is an example of the first direction, and the second direction B2 is an example of the second direction.
- the pressure chamber 18 is an example of the pressure chamber and the first urging unit.
- the electric motors 15 and 64 are examples of electric motors, respectively.
- the housing 21 is an example of a housing.
- FIG. 8 and FIG. 12 are examples of the first virtual plane.
- 2 and 9 are examples of the second virtual plane.
- the handle 22 is an example of a handle.
- the direction along the center line A1 or the direction parallel to the center line A1 is an example of the operating direction of the striking portion.
- the left-right direction in FIG. 2 and the left-right direction in FIG. 9 are examples of directions that intersect with the operating direction of the striking portion.
- the rotating shafts 35 and 65 are examples of rotating shafts, respectively.
- the center lines A2 and A3 are examples of rotation center lines, respectively.
- the electric motor 15 is an example of the first motor, and the electric motor 64 is an example of the second motor.
- the motor case 66 is an example of a motor case.
- the supply unit 19 is an example of a supply mechanism.
- the driving machine is not limited to the above embodiment, and can be variously changed without departing from the gist thereof.
- the object to drive the stopper may be any of walls, floors, ceilings, pillars, beams and the like.
- the operating direction of the striking portion may be horizontal or vertical, or between the horizontal and vertical directions.
- the driving machine includes a machine in which the injection part and the housing are integrated.
- the driving machine includes a machine in which the injection portion and the housing are provided as separate members and the injection portion and the housing are fixed to each other.
- the first urging portion may be a solid spring, a magnetic spring, or a synthetic rubber, in addition to the one that operates the striking portion by the pressure of the compressible fluid.
- the solid spring for example, operates the striking portion by the elastic restoring force of the metal spring.
- the magnetic spring operates the striking portion by the magnetic attraction force or the repulsive force of the magnet. Synthetic rubber operates the striking part with an elastic restoring force.
- the electric motor may be either a brushless motor (inverter motor) or a brushed motor.
- the housing may be made of metal, synthetic resin, or metal coated with synthetic rubber or synthetic resin.
- the housing has a tubular shape and includes a casing and a body.
- the handle may have any of a tubular shape, a rod shape, a shaft shape, and the like.
- the supply unit may be defined as a supply mechanism that can be actuated to feed the stopper to the injection unit, or an actuating member that can be actuated to feed the stopper to the injection unit.
- the supply unit includes an element that can be rotated by the power of the electric motor, an element that can be linearly actuated by the power of the electric motor, and an element that is in contact with the stopper and can be actuated in the supply direction of the stopper.
- Elements that can be rotated by the power of an electric motor are, for example, gears and arms.
- Elements that can be linearly actuated by the power of an electric motor are, for example, pistons and plungers.
- Elements that can operate in the supply direction of the stopper are, for example, a feeder, a feed claw, and an engaging member.
- the supply unit is configured to be operated by an electric motor that operates the striking unit, an actuator may be provided separately.
- an electric motor having a rotating shaft or a solenoid capable of being linear may be provided exclusively.
- the supply unit is controlled by the control unit that controls the electric motor that operates the striking unit.
- the power transmission unit may have any one of a gear train which is a meshing transmission device, a pulley and a belt which is a winding transmission device, and a friction roller which is a friction transmission device, and may have a plurality of transmission devices. You may have a device.
- the power supply unit that supplies electric power to the electric motor may be either a DC power supply or an AC power supply.
- the DC power source may be either a secondary battery or a primary battery.
- the AC power supply is not provided in the mounting portion, but the mounting portion and the AC power supply are connected by a power cable.
- the stopper may be either a nail with a head or a nail without a head.
- the virtual plane and the center line described in the embodiment do not actually exist physically, but are imaginary planes and imaginary lines in engineering.
- the first virtual plane is not limited to the front view of the driving machine, but may be a rear view. That is, although a plurality of first virtual planes can be assumed, since the virtual planes are parallel to each other, the relationship between the arrangement range of the electric motor and the arrangement range of the magazine in each virtual plane is the same.
- the second virtual plane is not limited to the plan view of the driving machine, but may be a bottom view. That is, although a plurality of second virtual planes can be assumed, since the virtual planes are parallel to each other, the relationship between the arrangement range of the electric motor and the arrangement range of the magazine in each virtual plane is the same.
- the position where the piston is most distant from the injection portion in the direction along the center line can be defined as the top dead center of the striking portion.
- the position where the piston is closest to the injection portion in the direction along the center line can be defined as the bottom dead center of the striking portion.
- the rotating shaft extends parallel to the operating direction of the striking part
- tolerances such as machining, mounting errors between parts, etc.
- the operating direction of the striking part also includes cases where there is a slight deviation.
- the "cylindrical magazine” is the external shape of the magazine, and the inside of the magazine is hollow.
- first motor and the second motor are arranged so as to sandwich the striking portion
- first motor and the second motor are in contact with the striking portion.
- the striking portion is operable. Further, even if the striking portion operates, it does not come into contact with either the first motor or the second motor.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Claims (15)
- 連結された複数の止具をロール状にして収容可能であり、かつ、円柱形状のマガジンと、
前記マガジンから前記止具が供給される射出部と、
前記射出部へ供給された前記止具を打撃可能な第1の方向に作動可能であり、かつ、前記第1の方向とは逆の第2の方向に作動可能な打撃部と、
前記打撃部を前記第1の方向に作動させる第1付勢部と、
前記打撃部を前記第2の方向に作動させる電動モータと、
前記打撃部及び前記電動モータを支持するハウジングと、
前記ハウジングから前記打撃部の作動方向に対して交差する方向に突出されたハンドルと、を有し、
前記電動モータは、回転軸を有し、
前記回転軸は、前記打撃部の作動方向に直交する平面に対して交差する方向に延びている、打込機。 - 前記回転軸は、前記打撃部の作動方向と平行に延びている、請求項1記載の打込機。
- 前記打撃部の動作をガイドするシリンダが、更に設けられ、
前記電動モータは、前記シリンダに隣接して配置されている、請求項1または2記載の打込機。 - 前記電動モータは、前記打撃部と直交する方向において、前記シリンダの中心軸より前記ハンドル側に設けられている、請求項3記載の打込機。
- 前記第1付勢部、前記シリンダ、前記電動モータは、前記ハウジング内に設けられている、請求項3または4記載の打込機。
- 前記電動モータは、第1モータ及び第2モータを含み、
前記第1モータと前記第2モータとは、前記打撃部を挟むように配置されている、請求項5記載の打込機。 - 前記回転軸は、前記打撃部の作動方向に対して交差する方向に延びている、請求項1記載の打込機。
- 前記ハウジングから前記打撃部の作動方向に対して交差する方向に突出されたモータケースが、更に設けられ、
前記モータケースは、前記第1仮想平面内に位置し、
前記電動モータは、前記モータケース内に設けられている、請求項7記載の打込機。 - 前記モータケースは、前記ハンドルと前記マガジンとの間に配置されている、請求項8記載の打込機。
- 前記電動モータを制御する制御部と、前記マガジンに収容されている前記止具を前記射出部へ供給するように作動可能な供給部とが、更に設けられ、
前記供給部は、前記制御部によって制御される、請求項1乃至9の何れか1項記載の打込機。 - 前記供給部は、前記電動モータにより作動される、請求項1乃至10の何れか1項記載の打込機。
- 前記電動モータは、ブラシレスモータである、請求項1乃至11の何れか1項記載の打込機。
- 前記第1付勢部は、圧力室内の圧縮性気体であり、
前記圧力室内の圧力は、前記打撃部が前記第2の方向に作動すると上昇する、請求項1乃至12の何れか1項記載の打込機。 - 前記回転軸の動力により回転するホイールを有し、
前記ホイールの回転軸は、前記打撃部の作動方向に直交する方向に延びている、請求項1乃至13の何れか1項記載の打込機。 - 前記打撃部の作動方向に沿い、かつ、前記ハンドルが前記ハウジングから突出された方向に対して交差する第2仮想平面内であり、かつ、前記打撃部の作動方向に対して交差する方向で、前記電動モータの配置領域と前記マガジンの配置領域とが一部で重複している、請求項1記載の打込機。
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US17/773,496 US20240173833A1 (en) | 2019-11-01 | 2020-09-25 | Driving device |
JP2021554190A JP7409391B2 (ja) | 2019-11-01 | 2020-09-25 | 打込機 |
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JP2019199473 | 2019-11-01 | ||
JP2019-199473 | 2019-11-01 |
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JP2019098456A (ja) * | 2017-11-30 | 2019-06-24 | 工機ホールディングス株式会社 | 打込機 |
JP2019107713A (ja) * | 2017-12-15 | 2019-07-04 | 工機ホールディングス株式会社 | ねじ打機 |
-
2020
- 2020-09-25 JP JP2021554190A patent/JP7409391B2/ja active Active
- 2020-09-25 US US17/773,496 patent/US20240173833A1/en active Pending
- 2020-09-25 WO PCT/JP2020/036449 patent/WO2021084993A1/ja active Application Filing
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JPS5524874A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Koki Kk | Controller of instantaneous functioning tool |
JP2006026858A (ja) * | 2004-07-20 | 2006-02-02 | Max Co Ltd | ファスナ打込機 |
JP2006130617A (ja) * | 2004-11-05 | 2006-05-25 | Max Co Ltd | 釘打機における釘送り機構 |
US20080048000A1 (en) * | 2006-05-31 | 2008-02-28 | David Simonelli | Fastener driving device |
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JP7409391B2 (ja) | 2024-01-09 |
US20240173833A1 (en) | 2024-05-30 |
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