Work machine

Abstract

This work machine (10) is provided with: a cassette (54) that accommodates a plurality of fasteners therein; an injection unit (32) to which the fastener is supplied; and a drive blade (30) that strikes the fastener supplied to the ejection unit (32) by moving downward in the vertical direction (AR1). Further, the work machine (10) is provided with: a biasing unit that biases the drive blade (30) downward; a conversion mechanism (17) for rolling up the drive blade (30) to the upper side in the vertical direction (AR1); and an electric motor (15) that generates driving force for driving the conversion mechanism (17). The cartridge (54) is provided at a position overlapping the electric motor (15) when viewed from the direction of the rotation axis (AX2) of the electric motor (15).

Description

Technical Field

[0001] The invention relates to a working machine. Background Art

[0002] Patent Document 1 describes an electric nail driver having a roll-shaped magazine that accommodates a plurality of fasteners in a roll shape.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese International Publication No. 2021 / 84993 Summary of the invention

[0006] Technical issues

[0007] However, since the roller-shaped cassette has a large outer shape, the overall size of the work machine tends to be larger in order to avoid interference with the motor housing. The enlargement of the work machine leads to a decrease in the operability and workability of the operator. In addition, the decrease in operability or workability leads to a decrease in the convenience of the work machine. Therefore, it is desired to provide a work machine with improved convenience.

[0008] Technical Solution

[0009] A working machine in one embodiment comprises: a box, which accommodates a plurality of fasteners inside; an ejection unit, to which the fasteners are supplied; a striking unit, which strikes the fasteners supplied to the ejection unit by moving toward one side of a first direction; a force-applying unit, which applies force to the striking unit toward one side of the first direction; a rolling unit, which resists the force of the force-applying unit and rolls the striking unit toward the other side of the first direction; and a motor, which generates a driving force to drive the rolling unit, and the box is arranged at a position overlapping with the motor when viewed from the direction of the rotation axis of the motor.

[0010] Another embodiment of the working machine comprises: a box having a substantially cylindrical shape and accommodating a plurality of fasteners rolled into a spiral shape; an ejection portion to which the fasteners are supplied; a striking portion that strikes the fasteners supplied to the ejection portion by moving toward one side of a first direction; a force-applying portion that applies force to the striking portion toward one side of the first direction; a rolling-up portion that resists the force of the force-applying portion and rolls the striking portion toward the other side of the first direction; a motor that generates a driving force for driving the rolling-up portion; a handle that is held by an operator; and a motor housing that accommodates the motor, the motor housing being provided with a recessed portion for avoiding interference with the box.

[0011] The working machine of other embodiments comprises: a box, which accommodates a plurality of fasteners inside; an ejection part, to which the fasteners are supplied; a striking part, which strikes the fasteners supplied to the ejection part by moving toward one side of a first direction; a force-applying part, which applies force to the striking part toward one side of the first direction; a winding part, which resists the force of the force-applying part and rolls the striking part toward the other side of the first direction by rotating around a winding axis extending in a direction intersecting the first direction; and a motor, which generates a driving force to drive the winding part, and the box is arranged on the winding axis.

[0012] Effects of the Invention

[0013] According to the present invention, a convenient working machine can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an external appearance side view of the working machine according to the first embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional view of the interior of a part of the working machine.

[0016] Figure 3 This is the top view of the operating machine.

[0017] Figure 4 This is an appearance diagram of the conversion mechanism and striking mechanism of the working machine.

[0018] Figure 5 This is a front view of the work machine.

[0019] Figure 6 This is a rear view of the work machine.

[0020] Figure 7 It is shown Figure 1 A side view of the external appearance on the opposite side of the external appearance of the working machine shown.

[0021] Figure 8 yes Figure 1 The rear appearance view of the working machine shown in the motor axis direction.

[0022] Fig. 9 is along Figure 3 Cross-sectional view along line AA.

[0023] Fig.10 This is a right side external view showing the side structure of a working machine according to Embodiment 2 of the present invention.

[0024] Fig.11 yes Fig.10 The top view of the working machine is shown.

[0025] Fig.12 yes Fig.10 The front appearance of the working machine shown.

[0026] Fig.13 yes Fig.10 The left side appearance of the work machine is shown.

[0027] Fig.14 yes Fig.10 The rear appearance of the work machine shown.

[0028] Fig.15 yes Fig.10 The bottom appearance of the working machine shown.

[0029] Fig.16 It is shown Fig.15 The bottom appearance view of the working machine in the nail loading state is shown.

[0030] Fig.17 is along Fig.16 Cross-sectional view of line BB.

[0031] Fig.18 It is shown Fig.15 The top view of the opening method of the magazine cover of the working machine shown.

[0032] Fig.19 It is shown Fig.15 The bottom appearance view of the opening method of the magazine cover of the working machine shown.

[0033] Fig. 20 It is shown Fig.15 The left side appearance view of the working machine showing the opening method of the cassette cover.

[0034] Fig.21 is along Fig. 20 Cross-sectional view of the CC line.

[0035] Fig. 22 It is shown Fig.15 The left side appearance view of the working machine showing the nail loading method.

[0036] Fig.23 is along Fig. 22 Cross-sectional view of line DD.

[0037] Fig.24 is along Fig. 22 A cross-sectional view of line EE.

[0038] Fig.25 It is shown from Fig.15 The figure is a cross-sectional view of the interior of an air supply passage for air supplied to a solenoid by a fan of a working machine.

[0039] Fig.26 It is shown from Fig.15 The figure is a cross-sectional view of the interior of an air supply passage for air discharged from an exhaust port of a cylinder of a working machine to a solenoid.

[0040] Fig. 27 It is shown Fig.26 A cross-sectional view showing the exhaust state inside the cylinder of the working machine shown. DETAILED DESCRIPTION

[0041] A working machine according to an embodiment will be described with reference to the drawings.

[0042] (Implementation Method 1) Figure 1 is a side view of the appearance of the working machine 10 according to the first embodiment. Figure 2 It is a cross-sectional view of a part of the working machine 10 . Figure 3 1 is a top view of the working machine 10. The working machine 10 is, for example, an electric nailing machine, and includes a housing 11, a striking mechanism 12, a nose 13, a power supply unit 14, an electric motor 15, a gear box 16, a conversion mechanism 17, a pressure storage container 18, a supply mechanism 19, and a magazine 54.

[0043] In addition, in the following description, sometimes also referred to as Figure 1 , Figure 2 The upper part of the paper is called the top, the lower part of the paper is called the bottom, the right side of the paper is called the front, the left side of the paper is called the back, the outer side of the paper is called the right, and the inner side of the paper is called the left. In addition, the up and down direction is sometimes called the first direction AR1, the bottom is called one side of the first direction AR1, and the top is called the other side of the first direction AR1. In addition, the front and back direction is sometimes called the second direction AR2, the front is called one side of the second direction AR2, and the back is called the other side of the second direction AR2. In addition, as Figure 3 As shown, the left-right direction intersecting the first direction AR1 and the second direction AR2 is sometimes referred to as a third direction AR3, the right side is referred to as one side of the third direction AR3, and the left side is referred to as the other side of the third direction AR3.

[0044] <Casing 11> The casing 11 is an outer member of the working machine 10. The casing 11 has a cylinder casing 20, a handle 21 connected to the cylinder casing 20, a motor casing 22 connected to the cylinder casing 20, and a battery mounting portion 23 connected to the handle 21 and the motor casing 22.

[0045] <Cylinder Case 20> The cylinder 28 is supported by the cylinder case 20. The cylinder 28 is made of metal and is positioned relative to the cylinder case 20 in the direction of the first center line X1 parallel to the first direction (vertical direction) AR1 and in the radial direction (direction orthogonal to the first center line X1).

[0046] <Handle 21> Figure 3As shown, the axis AX1 of the handle 21 extends along the second direction (front-rear direction) AR2 of the work machine 10. That is, the axis AX1 of the handle 21 is parallel to the second direction AR2. Alternatively, the axis AX1 of the handle 21 extends in a direction intersecting the first direction (up-down direction) AR1. Figure 1 , Figure 2 As shown, a trigger 51 is provided below the handle 21. The operator, i.e., the user, can operate the trigger 51 while holding the handle 21. A trigger switch (not shown) is provided in the handle 21, and when an operating force is applied to the trigger 51, an operating signal is output. When the operating force of the trigger 51 is released, the trigger switch stops outputting the operating signal.

[0047] <Motor housing 22> The motor housing 22 is a housing for housing the electric motor 15, the gear box 16, and the conversion mechanism 17 described later. The motor housing 22 has a cylindrical shape extending along the rotation axis AX2 of the electric motor 15. The rotation axis AX2 of the electric motor 15 extends in a direction intersecting the first direction (vertical direction) AR1. Figure 3 As shown, the motor housing 22 (i.e., the electric motor 15) is arranged on the right side (one side) of the third direction (left-right direction) AR3 relative to the handle 21. In addition, when viewed from the first direction (viewed in the up-down direction), the rotation axis AX2 of the electric motor 15 is inclined relative to the axis AX1 of the handle 21 on the right side (one side of the third direction AR3) of the handle 21. Specifically, the motor housing 22 is inclined toward the axis AX1 of the handle 21 in front of (on one side) the second direction AR2 in which the handle 21 extends. That is, the rotation axis AX2 of the electric motor 15 is inclined toward the axis AX1 of the handle 21 in front of the second direction AR2. For this reason, the rear end of the motor housing 22 is located on the right side relative to the handle 21 compared to the front end.

[0048] <Battery Mounting Section 23> The battery mounting section 23 is disposed at the rear end of the handle 21 and the motor housing 22 (i.e., the other side of the second direction AR2). The switch of the power supply section 14 described later is detachably mounted on the battery mounting section 23. Figure 3 As shown, the central axis AX3 of the battery mounting portion 23 is parallel to the axis AX1 of the handle 21, that is, the second direction AR2. In addition, the central axis AX3 of the battery mounting portion 23 is arranged at a position offset to one side (rightward) of the third direction (left-right direction) AR3 relative to the handle 21. Therefore, the battery mounting portion 23 is connected to the handle 21 on the left side of the end surface on the front side, and is connected to the motor housing 22 on the right side of the end surface on the front side.

[0049] <Strike mechanism 12> Figure 2As shown, the striking mechanism 12 includes a piston 29 and a driving blade 30. The piston 29 is provided on one side (lower side) in the first direction AR1 relative to the pressure storage container 18 described in detail later, and is always urged toward one side (lower side) in the first direction AR1 by the pressure of the pressure chamber 27 provided in the pressure storage container 18. The piston 29 can move in the first direction AR1 inside the cylinder 28. A sealing member is installed on the outer peripheral surface of the piston 29. The sealing member contacts the inner peripheral surface of the cylinder 28 to form a sealing surface.

[0050] The driving blade 30 is made of metal, for example. The driving blade 30 is connected to the piston 29 at the lower side of the piston 29 in the first direction AR1 and extends along the first center line X1. As described above, since the piston 29 can move in the first direction AR1, the driving blade 30 can also move in the first direction AR1. That is, the striking axis AX4 of the striking mechanism 12 extends in the first direction AR1. The plurality of racks 47 (see Figure 4 ) are arranged on the driving blade 30 at a predetermined pitch along the first direction AR1 as the moving direction. Figure 3 As shown, the rack 47 protrudes in the protruding direction AR5 relative to the driving blade 30 toward the rotation axis AX2 of the electric motor 15. The protruding direction AR5 is a direction orthogonal to the rotation axis AX2 of the electric motor 15. As described above, when viewed from the first direction (when viewed in the up-down direction), since the rotation axis AX2 of the electric motor 15 is inclined relative to the axis AX1 of the handle 21, the protruding direction AR5 intersects the axis AX1 of the handle 21 at a non-right angle.

[0051] In addition, the driving blade 30 is said to Figure 1 The movement of the driving blade 30 to one side (the lower side) in the first direction AR1 is referred to as the downward movement. Figure 1 The other side (upper side) in the first direction AR1 moves upward.

[0052] <Nose 13> The nose 13 is positioned and arranged relative to the cylinder housing 20 in the direction of the first center line X1 and in the radial direction of the cylinder 28. The nose 13 has a bumper support portion 31, an ejection portion 32, and a cylinder portion 33. The bumper support portion 31 is cylindrical and has a guide hole 34. The guide hole 34 is arranged with the first center line X1 as the center.

[0053] The bumper 35 is disposed in the bumper support portion 31. The bumper 35 is integrally formed of, for example, a synthetic rubber such as an elastomer. The bumper 35 is provided with a guide hole 36 centered on the first center line X1. The driving blade 30 is movable in the guide hole 36 in the first direction AR1.

[0054] The ejection portion 32 is connected to the bumper support portion 31 and the cylinder portion 33, and protrudes from the bumper support portion 31 to the lower side in the first direction AR1. The ejection portion 32 has an ejection channel 37, and the ejection channel 37 is provided concentrically with the first center line X1 as the center. The driving blade 30 can move in the first direction AR1 within the ejection channel 37. The nail N (refer to FIG. 1 ) as a fastener accommodated in the cassette 54 described later Figure 7 ) is supplied to the injection channel 37 of the injection portion 32.

[0055] The push rod 72 is attached to the end portion of the emitting portion 32 on the lower side in the first direction AR1. The push rod 72 is movable within a predetermined range in the first direction AR1 relative to the emitting portion 32.

[0056] <Power supply unit 14> The power supply unit 14 can be detachably mounted on the battery mounting unit 23 along the first direction AR1, and is a DC power supply that supplies power to the electric motor 15 and the supply mechanism 19. The power supply unit 14 includes a housing and a plurality of battery cells housed in the housing. The battery cell is a secondary battery that can be charged and discharged, and any one of a lithium ion battery, a nickel hydrogen battery, a lithium ion polymer battery, and a nickel cadmium battery can be used.

[0057] <Electric Motor 15> The electric motor 15 receives power from the power supply unit 14 and rotates to drive the striking mechanism 12. The electric motor 15 is disposed in the motor housing 22. The electric motor 15 is a brushless electric motor having a rotor and a stator. Figure 1 As shown, when viewed from the left-right direction (third direction AR3 ), the rotation axis AX2 , which is the rotation center of the electric motor 15 , is orthogonal to the first center line X1 .

[0058] <Gear box 16> The gear box 16 is provided in the motor housing 22 on the front side of the electric motor 15. The gear box 16 is cylindrical and does not rotate relative to the nose 13 and the cylinder 33. A reduction mechanism is provided in the gear box 16, and the reduction mechanism has an input element, an output element, and a plurality of sets of planetary gear mechanisms. The input element of the reduction mechanism is connected to the rotating shaft of the electric motor 15, and the input element is rotatably supported by a bearing.

[0059] <Conversion mechanism 17> Figure 4 1 is an appearance diagram of the conversion mechanism 17, the piston 29, and the drive blade 30. The conversion mechanism 17 is provided in the motor housing 22 on the front side of the gear box 16, and converts the rotational force of the output element of the reduction mechanism in the gear box 16 into a moving force along the first direction AR1 of the drive blade 30. The conversion mechanism 17 has a drive shaft 45, a pin wheel 46, and a pinion pin 48. The drive shaft 45 is rotatably supported by a bearing with the rotation axis AX2 of the electric motor 15 as the center. The pin wheel 46 is fixed to the drive shaft 45. The pin wheel 46 has a plurality of pinion pins 48.

[0060] The pinion pins 48 are arranged at intervals in the rotation direction of the pin wheel 46. The pinion pins 48 are arranged within a predetermined angle range in the rotation direction of the pin wheel 46. The pinion pins 48 can be engaged and disengaged with the racks 47 provided on the drive blades 30, respectively.

[0061] When the pin wheel 46 is Figure 4 When the conversion mechanism 17 rotates clockwise in the first direction AR1 and at least one pinion pin 48 is engaged with at least one rack 47, the rotational force of the pin wheel 46 is transmitted to the driving blade 30 of the striking mechanism 12. The transmitted rotational force causes the driving blade 30 to move toward the other side (upper) of the first direction AR1 against the pressure of the pressure chamber 27. That is, the conversion mechanism 17 rotates by the driving force of the electric motor 15 in a state of being engaged with the driving blade 30, thereby functioning as a winding portion that winds up the driving blade 30 toward the other side (upper) of the first direction AR1.

[0062] When all the pinion pins 48 are disengaged from the rack 47, the rotational force of the pin wheel 46 is not transmitted to the driving blade 30. As a result, the driving blade 30 is lowered by the pressure of the pressure chamber 27 described later, and hits the nail N supplied to the ejection part 32. That is, the piston 29 and the driving blade 30 function as a hitting part that hits the nail N as a fastener supplied to the ejection part 32 by moving to one side (the lower side) of the first direction AR1. As a result, the nail N is hit by the driving blade 30 and driven into the work object (driven material).

[0063] <Pressure storage container 18> Figure 1 The pressure storage container 18 shown has a cap 24. The head cover 26 is installed on the upper side of the cylinder shell 20 in the first direction AR1, and the pressure storage container 18 is arranged in the cylinder shell 20 and the head cover 26. A pressure chamber 27 is provided in the pressure storage container 18. The pressure chamber 27 is filled with gas. The gas can be any compressible gas. As the gas, in addition to air, for example, inert gases such as nitrogen and rare gases can also be used. As described above, the striking mechanism 12 is always forced toward one side (downward) of the first direction AR1 by the pressure of the pressure chamber 27 provided in the pressure storage container 18. That is, the pressure chamber 27 functions as a force applying portion that applies force to the striking mechanism 12 toward one side (downward) of the first direction AR1. In addition, it is assumed that the pressure chamber 27 is filled with air for explanation.

[0064] The supply mechanism 19 supplies nails N contained in a magazine 54 to be described later into the ejection unit 32 along a fourth direction AR4. The fourth direction AR4 intersects the first direction AR1 and is non-parallel to the rotation axis AX2 of the electric motor 15 (ie, the second direction AR2).

[0065] The supply mechanism 19 includes a spring 59, a solenoid 60, an iron core 61, and a feeder 62. The feeder 62 can reciprocate in the fourth direction AR4 together with the iron core 61. A plurality of supply claws (not shown) are provided in the feeder 62 at predetermined intervals in the fourth direction AR4.

[0066] The solenoid 60 has a bobbin, a coil arranged inside the bobbin, and the like. The iron core 61 can reciprocate along the fourth direction R4 relative to the bobbin of the solenoid 60. The iron core 61 is made of a magnetic material such as iron, for example. The spring 59 is a force-applying component that applies force to the iron core 61 toward the front side of the fourth direction AR4, so that the feed portion 62 is located at an initial position. The coil of the solenoid 60 is connected to the power supply unit 14, and generates a magnetic attraction when current is supplied from the power supply unit 14. The magnetic attraction causes the iron core 61 to move toward the rear side of the fourth direction AR4 against the force of the spring 59. Along with the movement of the iron core 61, the feed portion 62 also moves to a predetermined position (nail installation position) on the rear side of the fourth direction AR4.

[0067] At the time of starting the movement, the supply claw provided in the feed part 62 does not enter between the plurality of nails N connected by the connecting element described later. Therefore, the plurality of nails N do not move to the front side of the fourth direction AR4. When the feed part 62 reaches the nail installation position, the supply claw provided in the feed part 62 enters between the nails N connected by the connecting element.

[0068] When the current supply from the power supply unit 14 is terminated, the magnetic attraction of the coil disappears. As a result, the iron core 61 moves toward the front side of the fourth direction AR4 due to the force of the spring 59. Along with the movement of the iron core 61, the feeder 62 also moves from the nail installation position to the front side of the fourth direction AR4, and moves to the initial position. When the feeder 62 moves to the front side of the fourth direction AR4, the nail N is supplied to the ejection unit 32 on the front side of the fourth direction AR4 by the supply claw that moves with the feeder 62. As a result, the feeder 62 causes the nail N located at the front end of the connecting element among the nails N contained in the cassette 54 to be located on the lower side of the driving blade 30.

[0069] <Box 54> Figure 5 is a front appearance diagram of the working machine 10. Figure 6 This is a rear external view of the working machine 10 . Figure 7 is an appearance diagram of the left side of the working machine 10. Figure 8 This is a rear appearance view of the working machine 10 in the motor axis direction. Fig. 9 is along Figure 3 The cassette 54 is supported by the supply mechanism 19. The cassette 54 has a substantially cylindrical shape centered on the axis AX5, and has a flat shape whose diameter centered on the axis AX5 is larger than the size in the direction of the axis AX5. Figure 3As shown, the cassette 54 is arranged on one side (below) in the first direction (vertical direction) AR1 relative to the handle 21 and the motor housing 22 (i.e., the electric motor 15) and behind the supply mechanism 19 (on the other side in the second direction AR2). Figure 5 , Figure 6 As shown, the cassette 54 is arranged in a state where the axis AX5 is inclined relative to the first direction (vertical direction) AR1, that is, the striking axis AX4 of the striking mechanism 12. Specifically, the axis AX5 of the cassette 54 is inclined toward the rotation axis AX2 of the electric motor 15 on the other side (upper side) of the first direction AR1. That is, the axis AX5 of the cassette 54 is inclined in the direction toward the rotation axis AX2 of the electric motor 15 at the upper end of the cassette 54 compared to the lower end of the cassette 54.

[0070] The cassette 54 has a drum portion 63 and a cassette cover 64, and contains a plurality of nails N as connected fasteners in a roll shape. The plurality of nails N are connected to each other by connecting elements such as bonding, wires, etc., and each nail N extends parallel to the axis AX5. The plurality of connected nails N are arranged in the drum portion 63 in a spiral shape rolled up around the axis AX5, that is, rolled in a roll shape.

[0071] The drum portion 63 is hollow and has a disc-shaped bottom surface 63a formed at the bottom and a side surface 63b rising upward from the right side edge of the bottom surface 63a. In other words, the drum portion 63 is not formed with an opening on the top and left side of the box 54. The connected multiple nails N are supplied to the inside of the drum portion 63 through the opening. The supplied multiple nails N are supported on the bottom surface 63a and the side surface 63b and accommodated in the inside of the drum portion 63. That is, the drum portion 63 functions as a storage portion for accommodating multiple fasteners.

[0072] The front end of the side surface 63b of the drum tube portion 63 is connected to the supply mechanism 19 and fixed to the housing 11. The rear end of the side surface 63b of the drum tube portion 63 is connected to a cassette cover 64 described later.

[0073] The cassette cover 64 covers the opening of the cassette 54 where the drum portion 63 is not formed, and is installed on the drum portion 63 so as to be openable and closable. Specifically, the cassette cover 64 has an upper surface 64a and a side surface 64b that rises downward from the left side edge of the upper surface 64a. The rear end of the side surface 64b of the cassette cover 64 is connected to the rear end of the side surface 63b of the drum portion 63 via a connection mechanism 65 such as a hinge.

[0074] The rotation axis AX6 of the connection mechanism 65 is parallel to the axis AX5 of the cassette 54. Through the connection mechanism 65, the cassette cover 64 rotates (ie, opens and closes) relative to the drum portion 63 fixed to the housing 11 around the rotation axis AX6. Figure 5 , Figure 764 is shown in an open state. In this state, as described above, a plurality of fasteners are accommodated in the interior of the drum portion 63. In addition, when the cassette cover 64 is in the open state, as shown in FIG. Figure 5 , Figure 7 As shown, the cartridge cover 64 is located behind and above the drum portion 63 of the cartridge 54. As described above, since the central axis AX3 of the battery mounting portion 23 disposed at the rear end of the handle 21 is offset to the right relative to the axis AX1 of the handle 21, the cartridge cover 64 in the open state is prevented from interfering with the battery mounting portion 23.

[0075] In the working machine 10 of the first embodiment, Figure 8 As shown in FIG. 1 , when viewed from the direction of the rotation axis AX2 of the electric motor 15, the cassette 54 is disposed at a position overlapping the electric motor 15. In detail, when viewed from the direction of the rotation axis AX2 of the electric motor 15, the drum portion 63 of the cassette 54 is disposed at a position overlapping the electric motor 15 ( Figure 8 The overlapping part G1). That is, Figure 1 The drum portion 63 of the cassette 54 in the front-rear direction (second direction AR2) is arranged behind the electric motor 15, and Figure 6 The drum portion 63 of the cassette 54 is arranged at a position that is smaller than the electric motor 15 (see FIG. 1 ) in the left-right direction (third direction AR3) shown in FIG. Figure 1 ) to the left. At this time, when viewed from the direction of the rotation axis AX2 of the electric motor 15, the drum portion 63 of the cartridge 54 is arranged at a position overlapping with the electric motor 15. That is, the position of the drum portion 63 is offset to the rear and left side of the electric motor 15 to such an extent that the drum portion 63 of the cartridge 54 is arranged at a position overlapping with the electric motor 15 when viewed from the direction of the rotation axis AX2 of the electric motor 15.

[0076] in addition, Figure 1 , Figure 2 , Figure 3 , Fig. 9 The state in which the magazine cover 64 is closed is shown. By closing the magazine cover 64, the plurality of fasteners accommodated in the drum portion 63 can be suppressed from falling out to the outside.

[0077] As described above, the motor housing 22 has a cylindrical shape, but as Figure 7 , Fig. 9As shown, a recess 22a is provided on a portion of the motor housing 22. The recess 22a is formed on the lower side of the rear of the motor housing 22, that is, at a position opposite to the upper surface 64a of the cassette cover 64 when the cassette cover 64 is in a closed state. The upper surface 64a of the cassette cover 64 is formed in an arc shape centered on the axis AX5 of the cassette 54 in a manner protruding toward the motor housing 22 side, and the wall surface 22b of the recess 22a is formed in an arc shape in a manner recessed in a direction spaced apart from the cassette cover 64. The outer diameter D1 of the motor housing 22 in the area where the recess 22a is formed is smaller than the outer diameter D2 in other areas of the motor housing 22 (refer to Fig. 9 ). Therefore, the problem that the cassette cover 64 cannot be closed due to the interference between the cassette cover 64 and the motor housing 22 is suppressed. That is, the motor housing 22 is provided with a recessed portion 22a to avoid interference with the cassette cover 64. The recessed portion 22a allows the motor housing 22 and the cassette cover 64 to be arranged close to each other, and a virtual circle 22c coaxial with the motor housing 22 and having a diameter equal to the outer diameter D2 contacts the cassette cover 64.

[0078] Furthermore, instead of forming the recessed portion 22a in the motor housing 22, a recessed portion that avoids interference with the motor housing 22 may be formed in the cassette cover 64 or the drum portion 63. The recessed portion in this case is formed at a position on the upper surface 64a of the cassette cover 64 that is opposed to the motor housing 22 when the cassette cover 64 is in the closed state. Thus, the same effect as the case where the recessed portion 22a is formed in the motor housing 22 is obtained. In addition, the recessed portion 22a may be a hole portion, or the drum portion 63 and the motor housing 22 may be formed as an integral component.

[0079] According to the above-described embodiment, the following effects can be obtained.

[0080] (1) The drum portion 63 of the cassette 54 in the front-back direction (second direction AR2) is arranged rearward of the electric motor 15, and the drum portion 63 of the cassette 54 in the left-right direction (third direction AR3) is arranged on the left side of the electric motor 15. Furthermore, when viewed from the direction of the rotation axis AX2 of the electric motor 15, the drum portion 63 of the cassette 54 is provided at a position overlapping with the electric motor 15. Thus, the length of the working machine 10 in the up-down direction (first direction AR1) and the left-right direction (third direction AR3) can be reduced, and the working machine 10 can be miniaturized. As a result, the deterioration of the operability or workability of the working machine 10 can be suppressed, and the convenience of the working machine 10 can be improved.

[0081] (2) When viewed from the first direction, the axis AX1 of the handle 21 held by the operator extends in the second direction AR2 that is inclined relative to the rotation axis AX2 of the electric motor 15. As a result, the length of the work machine 10 in the second direction AR2 can be reduced compared to a work machine in which the axis AX1 of the handle 21 is arranged parallel to the rotation axis AX2 of the electric motor 15. As a result, the work machine 10 can be miniaturized, making it easier for the operator to operate the work machine 10, and the workability can be improved.

[0082] (3) When viewed from the second direction, the axis AX5 of the magazine 54 is inclined relative to the striking axis AX4 of the striking mechanism 12 extending in the first direction AR1. As a result, the length of the working machine 10 along the first direction AR1 can be reduced compared to a working machine in which the axis AX5 of the magazine 54 is arranged in parallel with the striking axis AX4 of the striking mechanism 12. As a result, the working machine 10 can be miniaturized, making it easier for an operator to operate the working machine 10, thereby improving operability.

[0083] (4) The cartridge 54 is arranged on one side (below) in the first direction (vertical direction) AR1 relative to the handle 21 and the electric motor 15, and the axis AX5 of the cartridge 54 is inclined toward the rotation axis AX2 of the electric motor 15 on the other side (upper) in the first direction AR1. The electric motor 15 is arranged on one side (right) in the third direction relative to the handle 21, and the rotation axis AX2 of the electric motor 15 is inclined toward the axis AX1 of the handle 21 on one side (front) in the second direction AR2. Therefore, since the upper right portion of the cartridge 54 is located below the upper left portion, it is possible to suppress the cartridge 54 from interfering with the motor housing 22 arranged on the right side relative to the handle 21. In addition, compared with the case where the axis AX5 of the cartridge 54 is parallel to the first direction AR1 (that is, the striking axis AX4 of the striking mechanism 12), the cartridge 54 can be arranged above the first direction AR1 in a state where the cartridge 54 and the motor housing 22 are prevented from interfering with each other. As a result, since the size of the work machine 10 in the left-right direction and the up-down direction can be reduced, it is easy for the operator to operate the work machine 10, and the workability can be improved.

[0084] (5) The battery mounting portion 23 is arranged at the end portion of the other side (rear) of the second direction AR2 of the handle 21. When viewed from the first direction, the central axis AX3 of the battery mounting portion 23 is arranged to be offset to one side (right) of the third direction AR3 relative to the axis AX1 of the handle 21. Thus, compared with the case where the battery mounting portion 23 is arranged with the central axis AX3 of the battery mounting portion 23 along the axis AX1 of the handle 21, the amount of the battery mounting portion 23 protruding to the left side of the handle 21 can be reduced. As a result, since the size of the work machine 10 in the left-right direction can be reduced, it is easy for the operator to operate the work machine 10, and the operability can be improved. In addition, when the cassette cover 64 of the cassette 54 is in an open state, the cassette cover 64 and the battery mounting portion 23 can be prevented from interfering with each other.

[0085] (6) The motor case 22 is provided with the recessed portion 22a for avoiding interference with the cassette cover 64. This prevents the cassette cover 64 from interfering with the motor case 22 and thus preventing the cassette cover 64 from being closed.

[0086] The above-described embodiment may be modified as follows.

[0087] <Variation> The central axis AX3 of the battery mounting portion 23 is not limited to being parallel to the axis AX1 of the handle 21, that is, the second direction AR2. For example, the central axis AX3 of the battery mounting portion 23 may be parallel to the rotation axis AX2 of the electric motor 15, that is, not parallel to the second direction AR2. In this case, the length of the battery mounting portion 23 and the power supply portion 14 mounted on the battery mounting portion 23 along the second direction AR2 is shorter than when the central axis AX3 of the battery mounting portion 23 is parallel to the second direction AR2. That is, the total length of the working machine 10 along the second direction AR2 can be shortened. As a result, since the operator can easily operate the working machine 10, the operability of using the working machine 10 is improved. In addition, in the variation, when the cassette cover 64 of the cassette 54 is in an open state, the cassette cover 64 and the battery mounting portion 23 are prevented from interfering with each other.

[0088] (Implementation Method 2) Fig.10 This is a right side external view of the working machine 10 according to the second embodiment. Fig.11 is a top view of the working machine 10. Fig.12 is a front appearance diagram of the working machine 10. Fig.13 is a left side appearance view of the working machine 10. Fig.14 is a rear appearance view of the working machine 10. Fig.15 1 is a bottom view of the working machine 10. As in the first embodiment, in the second embodiment, the working machine 10 is also an electric nailing machine. Fig.10As shown, the working machine 10 has a housing 11, a striking mechanism 12, a nose 13, a power supply unit 14, an electric motor 15, a gear box 16, a conversion mechanism 17, a pressure storage container 18, a supply mechanism 19, and a cassette 54. Fig.14 and Fig.15 As shown, the magazine 54 includes a drum portion 63 that is generally cylindrical in shape. Fig.10 The conversion mechanism 17 shown is a roll top portion, which includes Fig.12 The pin wheel 46 shown in the figure rotates around the winding axis AX8 extending in a direction intersecting the up-down direction (first direction AR1), thereby resisting the force applying portion ( Fig.17 The piston 29 and the driving vane 30 are rolled up toward the other side (upper side) in the up-down direction (first direction AR1) by the biasing force of the pressure chamber 27 shown in FIG.

[0089] The position of the cassette 54 in the working machine 10 of the second embodiment will be described. Fig.11 As shown, the handle 21 and the electric motor 15 are provided so that the axis AX1 of the handle 21 (hereinafter also referred to as the handle axis AX1) and the rotation axis AX2 of the electric motor 15 (hereinafter also referred to as the motor axis AX2) are parallel.

[0090] Furthermore, like the working machine 10 of the first embodiment, in the working machine 10 of the second embodiment, Fig.14 As described above, when viewed from the direction of the rotation axis AX2 of the electric motor 15, that is, when viewed from the rear of the working machine 10, the cassette 54 is provided at a position overlapping with the electric motor 15. Fig.14 When the rear appearance of the working machine 10 is observed, the substantially cylindrical drum portion 63 included in the cassette 54 of the working machine 10 of the second embodiment is provided at a position overlapping with the electric motor 15 .

[0091] In detail, by Fig.10 The drum portion 63 of the cassette 54 in the front-to-back direction (second direction AR2) is positioned further back than the electric motor 15 (on the opposite side of the ejection unit 32 relative to the electric motor 15 in the second direction AR2), and the drum portion 63 of the cassette 54 in the up-down direction (first direction AR1) is raised to a position substantially at the same height as the electric motor 15. Fig.14When the rear appearance of the working machine 10 is observed, the drum portion 63 of the cartridge 54 is arranged at a position overlapping with the electric motor 15, and the drum portion 63 of the cartridge 54 is arranged at a higher position in such a manner that the motor axis AX2 passes through the vicinity of the center of the drum portion 63 of the cartridge 54 in the up-down direction (first direction AR1). That is, the cartridge 54 is arranged on the motor axis AX2, and the drum portion 63 of the cartridge 54 is also arranged on the motor axis AX2.

[0092] In addition, compared with the working machine 10 of the first embodiment, the spacing between the cartridge 54 and the electric motor 15 in the left-right direction (third direction AR3) can be kept to a minimum by moving the position of the drum portion 63 of the cartridge 54 to the rear side relative to the electric motor 15. As a result, the motor axis AX2 is in a positional relationship passing through the vicinity of the center portion of the drum portion 63 of the cartridge 54 in the left-right direction (third direction AR3).

[0093] Therefore, in the working machine 10 of the second embodiment, the drum tube portion 63 of the magazine 54 is arranged at a higher position by arranging it further to the rear side than the working machine 10 of the first embodiment. Thus, when the working machine 10 is viewed from the rear, the motor axis AX2 is in a positional relationship passing through the vicinity of the center of the drum tube portion 63 of the magazine 54 in the up-down direction (first direction AR1).

[0094] In addition, in other words, Fig.12 As shown, the cassette 54 is arranged on the winding axis AX8. In the working machine 10 of the second embodiment, the case where the motor axis AX2 and the winding axis AX8 are coaxial is described, but the motor axis AX2 and the winding axis AX8 do not necessarily need to be coaxial, and can also be offset from each other. However, even in the case where the motor axis AX2 and the winding axis AX8 are offset, the cassette 54 is arranged on the winding axis AX8.

[0095] When the operator holds the work machine 10 to perform nailing work, the operator himself is located at the rear side of the work machine 10. Therefore, making the magazine 54 protrude appropriately at the rear side of the work machine 10 does not particularly hinder the nailing work.

[0096] In the working machine 10 of the second embodiment described above, the magazine 54 is arranged so that the motor axis AX2 passes through the vicinity of the center of the drum portion 63 of the magazine 54 in the vertical direction (first direction AR1), thereby Fig.12 As shown, the distance L1 from the center of the pin wheel 46 (the motor axis AX2) to the lower end of the ejection portion 32 (the ejection port 32a) can be shortened.

[0097] That is, in the working machine 10 of the second embodiment, the cassette 54 is arranged to be offset upward, including Fig.10 As a result, the distance L1 from the center of the pin wheel 46 (motor axis AX2) to the lower end of the ejection unit 32 (ejection port 32a) can be shortened, and the height of the working machine 10 can be reduced.

[0098] Next, the supply mechanism 19 connected to the cassette 54 will be described. Fig.10 and Fig.13 As shown, the working machine 10 has a feeding section 62 that feeds the nails N (see Fig.17 ) is sent from the magazine 54 to the ejection unit 32. The supply axis AX7 is the axis along which the nails N contained in the drum 63 are supplied from the drum 63 to the ejection unit 32. That is, the nails N drawn out from the drum 63 of the magazine 54 are transported to the ejection unit 32 along the supply axis AX7 by the supply mechanism 19 (refer to Fig.17 ).like Fig.11 and Fig.15 As shown in FIG. 1 , when viewed from the up-down direction (first direction AR1), the supply axis AX7 is inclined relative to the motor axis AX2. Fig.11 In the illustrated left-right direction (third direction AR3 ), the drum portion 63 of the cassette 54 is slightly offset from the handle axis AX1 , and as a result, the electric motor 15 and the drum portion 63 do not interfere with each other in the left-right direction (third direction AR3 ).

[0099] here, Fig.16 1 is a bottom appearance diagram showing the nail loading state of the working machine 10. Fig.17 yes Fig.16 The cross-sectional view of line BB. Fig.13 , Fig.15 , Fig.16 as well as Fig.17 As shown, the working machine 10 has a cylinder 28 that movably accommodates a piston 29 as a striking part and a driving blade 30, and the supply mechanism 19 includes a solenoid 60 that drives a feeding part 62. The coil of the solenoid 60 is connected to the power supply part 14, and when current is supplied from the power supply part 14, the above-mentioned coil generates a magnetic attraction. By this magnetic attraction, the feeding part 62 moves to a predetermined position (nail installation position) on the rear side of the fourth direction AR4 along the supply axis AX7.

[0100] When the current supply from the power supply unit 14 is terminated, the magnetic attraction of the coil disappears. As a result, the feeder 62 moves from the nail installation position to the front side of the fourth direction AR4, and the movement of the feeder 62 causes the nail N to be supplied to the ejection unit 32 on the front side of the fourth direction AR4. As a result, the feeder 62 causes the nail N located at the front end of the connecting element among the nails N contained in the drum portion 63 of the cassette 54 to be located below the driving blade 30.

[0101] In addition, if Fig.13 As shown, the supply mechanism 19 includes a mechanism for guiding the nails N contained in the drum portion 63 to the ejection portion 32 (see Fig.16 ) blade guide 40 and nail guide 41, and a nail stopper 42 for positioning the nail N. Fig.15 As shown, the solenoid 60 is provided on a solenoid output shaft 60 a and is covered by a solenoid cover (cover portion) 55 .

[0102] like Fig.16 and Fig.17 As shown, the connecting nail J1 rolled into a roll is accommodated in the drum portion 63. The upper surface 63d and the side surface 63b of the drum portion 63 are covered by the cassette cover 64 (see Fig.21 ). In addition, in the supply mechanism 19, the connecting nails J1 in the connected state are pulled out from the drum portion 63, and the connecting nails J1 in the connected state are sequentially transported toward the front side along the supply axis AX7 by the feed portion 62, and one nail N is arranged in each injection channel 37.

[0103] Next, a method of loading the connecting nails J1 into the drum tube portion 63 of the magazine 54 will be described. Fig.18 The top view shows the opening method of the cassette cover. Fig.19 is a bottom view showing the opening method of the cassette cover, Fig. 20 This is a left side view showing the opening method of the cassette cover. Fig.21 is along Fig. 20 The cross-sectional view of the CC line, Fig. 22 It is shown Fig.15 The left side appearance diagram of the nail loading method of the working machine 10, Fig.23 is along Fig. 22 The cross-sectional view of the DD line, Fig.24 is along Fig. 22 A cross-sectional view of line EE.

[0104] like Fig.16 As shown, the drum portion 63 can accommodate the connecting nail J1 rolled into a roll. Figure 18 to Figure 21 As shown, in the cartridge 54, by rotating the cartridge cover 64, the top 63d and the side 63b of the drum portion 63 are in an open state. Fig.21 As shown, the cassette cover 64 is formed in an L shape, thereby covering the upper surface 63d and the side surface 63b of the drum tube portion 63. In addition, the rotation axis AX6 for rotating the cassette cover 64 is inclined relative to the axis AX5 of the drum tube portion 63 (refer to Fig.14 ). Further, if Fig.10As shown, a connection portion 39 is provided at a portion connecting the battery mounting portion 23 of the power supply portion 14 and the motor housing 22 , and a space portion 43 is formed between the connection portion 39 and the cassette cover 64 of the drum portion 63 .

[0105] Therefore, if Figures 18 to 20 As shown in FIG. 1 , when the cassette cover 64 is rotated about the rotation axis AX6, the cassette cover 64 is opened obliquely upward in the space portion 43 and rotates about the rotation axis AX6. Figure 21 to Figure 24 As shown in FIG. 1 , the top 63d and the side 63b of the drum tube portion 63 can be opened widely. Then, the connecting nail J1 wound into a roll is loaded from the loading direction K1 obliquely upward into the drum tube portion 63 in the state where the top 63d and the side 63b are opened widely. Fig.21 As shown, a rotating shaft 63c is provided in the drum 63 so as to sequentially feed the rolled connecting nails J1. Therefore, it is necessary to load the rolled connecting nails J1 into the drum 63 from above so that the center of the rolled connecting nails J1 fits into the rotating shaft 63c.

[0106] Therefore, in the working machine 10 of the second embodiment, Fig.23 As shown, a space portion 43 is formed between the connecting portion 39 and the drum portion 63, and the connecting portion 39 is in a shell shape that does not interfere with J1 when loaded with the connecting nail.

[0107] In this way, the shell shape of the connecting part 39 of the working machine 10 is a shell shape that will not interfere with the roller-shaped connecting nails J1 when loading the connecting nails J1. Even if the working machine 10 has a structure in which the box 54 is offset upward like the working machine 10 in the second embodiment, the roller-shaped connecting nails J1 can be loaded into the drum part 63.

[0108] Next, cooling of the solenoid 60 included in the working machine 10 will be described. Fig.25 is an internal cross-sectional view showing an air supply passage of air supplied from a fan of the working machine 10 to the solenoid, Fig.26 1 is an internal cross-sectional view showing an air supply passage of air discharged from an exhaust port of a cylinder of the working machine 10 to a solenoid. Fig. 27 It is a cross-sectional view showing the exhaust state of the inside of the cylinder of the working machine 10 .

[0109] like Fig.26 and Fig. 27As shown, the working machine 10 of the second embodiment has a cylinder 28, and the cylinder 28 has an exhaust port 28a. A plurality of exhaust ports 28a are provided at the outer circumferential lower portion of the cylindrical cylinder 28. The working machine 10 has an air supply passage 38, and the air supply passage 38 sends air Q1 discharged from the exhaust port 28a of the cylinder 28 by the piston 29 and the driving blade 30 as the striking part moving downward toward the solenoid 60. The air supply passage 38 is formed in the solenoid cover (cover portion) 55 that accommodates the solenoid 60.

[0110] Specifically, the cylinder housing 20 accommodating the cylinder 28 is connected to the motor housing 22 accommodating the electric motor 15, and further, the motor housing 22 is connected to the solenoid cover 55. And, from the cylinder housing 20 via the motor housing 22 to the solenoid cover 55, an air supply passage 38 as a passage of the air Q1 is provided inside. In addition, a plurality of exhaust ports 55a for exhausting the air Q1 are formed at the lower portion of the solenoid cover 55.

[0111] Therefore, if Fig. 27 As shown, when the piston 29 and the driving blade 30 move downward in the vertical direction (first direction AR1), the air Q1 disposed below the piston 29 in the cylinder 28 is discharged from the exhaust port 28a of the cylinder 28. Fig.26 As shown in FIG. 1 , the air Q1 exhausted from the exhaust port 28a passes through the air supply passage 38 provided in the cylinder case 20 and the motor case 22 and reaches the air supply passage 38 in the solenoid cover 55. Then, the air Q1 that reaches the air supply passage 38 in the solenoid cover 55 passes through the air supply passage 38a or the air supply passage 38b and is respectively sent to the plurality of exhaust ports 55a provided in the lower portion of the solenoid cover 55. At this time, by blowing the air Q1 toward the solenoid 60 provided in the solenoid cover 55, the solenoid 60 can be cooled. Thereafter, the sent air Q1 is discharged from each exhaust port 55a to the outside of the solenoid cover 55 as exhaust gas P2.

[0112] As described above, in the working machine 10 of the second embodiment, the air Q1 discharged from the cylinder 28 due to the downward movement of the piston 29 and the driving blade 30 is used to blow the air Q1 toward the solenoid 60, so that the solenoid 60 can be cooled. In addition, dust is generated when nails are driven in. Therefore, by blowing the air Q1 discharged from the cylinder 28 toward the solenoid 60 or the feeder 62, the dust generated when the nails are driven in can be reduced from adhering to the solenoid 60 or the feeder 62.

[0113] like Fig.25 As shown, a fan 56 is provided in the rotating shaft 15a of the electric motor 15. The fan 56 is rotated by the driving force of the electric motor 15. The fan 56 is, for example, a centrifugal fan, and a solenoid 60 or a feeder 62 is provided in air passages 57a and 57b of the fan 56.

[0114] In detail, when the fan 56 rotates by the rotation of the rotating shaft 15a of the electric motor 15, the air Q1 is sucked in from the outside of the solenoid cover 55 as the intake air P1. The intake air Q1 is blown toward the solenoid 60 or the feed portion 62, and reaches the fan 56. The air Q1 sucked in by the fan 56 changes its direction and is discharged from the fan 56. Further, the air Q1 discharged from the fan 56 is blown to the solenoid 60 or the feed portion 62, and then discharged to the outside of the solenoid cover 55 as the exhaust air P2.

[0115] Therefore, the solenoid 60 can be cooled by blowing the air Q1 sucked by the rotation of the fan 56 toward the solenoid 60. Furthermore, by blowing the air Q1 sucked by the rotation of the fan 56 toward the solenoid 60 or the feeder 62, the dust generated when driving the nail can be reduced from adhering to the solenoid 60 or the feeder 62.

[0116] In the working machine 10 of the second embodiment, the drum portion 63 of the cartridge 54 is offset to the rear and the drum portion 63 is also offset upward, thereby suppressing the interference between the electric motor 15 and the cartridge 54 and achieving miniaturization of the working machine 10. At this time, the supply mechanism 19 including the cartridge 54 is also offset upward. As a result, the distance L1 from the center of the pin wheel 46 (motor axis AX2) to the lower end (injection port 32a) of the ejection portion 32 can be shortened (refer to FIG. 1 ). Fig.12 ), and the height of the working machine 10 can be reduced. As a result, the miniaturization of the working machine 10 can be achieved.

[0117] Furthermore, since the working machine 10 can be miniaturized, a decrease in operability or workability of the working machine 10 can be suppressed, and the convenience of the working machine 10 can be improved.

[0118] Furthermore, when using a nailing machine, when nailing is to be performed in a position narrow in height, it is considered that the operator's head may hit the wall, etc. Therefore, as in the work machine 10 of the second embodiment, lowering the height of the work machine 10 and miniaturizing the work machine 10 are also effective in making it easier for the operator to perform the nailing work.

[0119] The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the invention. That is, other embodiments that can be conceived within the scope of the technical concept of the present invention also fall within the scope of the present invention.

[0120] Reference numerals

[0121] 10: working machine, 11: housing, 12: striking mechanism, 13: nose, 14: power supply unit, 15: electric motor (motor), 15a: rotating shaft, 16: gear box, 17: conversion mechanism (rolling upper part), 18: pressure storage container, 19: supply mechanism, 20: cylinder housing, 21: handle, 22: motor housing, 22a: recessed part, 22b: wall surface, 22c: virtual circle, 23: battery mounting part, 24: cap, 26: head cover, 27: pressure chamber (force applying part), 28: cylinder, 28a: exhaust port , 29: piston (striking part), 30: driving blade (striking part), 31: bumper support part, 32: ejection part, 32a: ejection port, 33: cylinder part, 34: guide hole, 35: bumper, 36: guide hole, 37: ejection channel, 38, 38a, 38b: air supply channel, 39: connecting part, 40: blade guide, 41: nail guide, 42: nail stopper, 43: space part, 45: driving shaft, 46: pin wheel, 47: rack, 48: pinion pin, 51: trigger, 5 4: cassette, 55: solenoid cover (cover), 55a: exhaust port, 56: fan, 57a, 57b: air duct, 59: spring, 60: solenoid, 60a: solenoid output shaft, 61: iron core, 62: feeding part, 63: drum part, 63a: bottom surface, 63b: side surface, 63c: rotating shaft, 63d: top surface, 64: cassette cover, 64a: top surface, 64b: side surface, 65: connecting mechanism, 72: push rod, AR1: first direction (up and down direction), AR2: second direction (front and back direction) direction), AR3: third direction (left-right direction), AR4: fourth direction, AR5: protruding direction, X1: first center line, AX1: axis line, AX2: rotation axis line, AX3: center axis, AX4: striking axis line, AX5: axis line, AX6: rotation axis, AX7: supply axis line, AX8: winding axis line, D1, D2: outer diameter, G1: overlapping part, J1: connecting nail, K1: loading direction, L1: distance, N: nail (fastener), P1: suction, P2: exhaust, Q1: air.

Claims

1. A working machine, characterized in that: have: a cassette that receives a plurality of fasteners therein; an ejection portion to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in the first direction; a force applying portion, which applies force to the striking portion toward one side of the first direction; a rolling-up portion, which resists the force applied by the force applying portion and rolls the striking portion upward toward the other side of the first direction; as well as a motor that generates a driving force to drive the upper portion of the roll, The cassette is disposed at a position overlapping with the motor when viewed from the direction of the rotation axis of the motor.

2. The working machine according to claim 1, characterized in that: The cassette is disposed on a rotation axis of the motor.

3. The working machine according to claim 1, characterized in that: have: a feeding portion, which feeds the fastener from the cassette to the ejection portion along a supply axis, When viewed from the first direction, the supply axis is inclined relative to the rotation axis of the motor.

4. The working machine according to claim 3, characterized in that: have: a cylinder that movably accommodates the striking part; and a solenoid that drives the feeding portion, An air supply passage is provided for supplying air exhausted from the exhaust port of the cylinder due to the movement of the striking portion toward the solenoid.

5. The working machine according to claim 4, characterized in that: have: a cover portion accommodating the solenoid, The air supply passage is formed in the cover portion.

6. The working machine according to claim 4, characterized in that: have: a fan that is rotated by the driving force of the motor, The solenoid is arranged on the air duct of the fan.

7. The working machine according to claim 1, characterized in that: have: A handle, which is held by the operator, A handle axis, which is an axis of the handle, extends in a direction intersecting the first direction, a motor axis which is a rotation axis of the motor extending in a direction intersecting the first direction, When viewed from the first direction, the handle axis is inclined relative to the motor axis.

8. The working machine according to claim 1, characterized in that: The cassette includes a generally cylindrical drum portion.

9. The working machine according to claim 8, characterized in that: The drum portion is disposed on a rotation axis of the motor.

10. The working machine according to claim 8, characterized in that: When the direction intersecting the first direction is taken as the second direction, The drum portion is arranged on a side opposite to the emission portion with respect to the motor in the second direction.

11. The working machine according to claim 7, characterized in that: When viewed from a second direction along the handle axis, a cassette axis, which is an axis of the cassette, is inclined relative to a striking axis of the striking portion along the first direction.

12. The working machine according to claim 11, characterized in that: The cassette is arranged on one side of the first direction relative to the handle and the motor, and the cassette axis is inclined toward the motor axis on the other side of the first direction. The motor is arranged on one side of a third direction intersecting the first direction and the second direction with respect to the handle, and the motor axis is inclined toward the handle axis on one side of the second direction.

13. The working machine according to claim 12, characterized in that: Also available: a battery mounting portion, which is disposed at the end portion of the handle on the other side of the second direction and on which a battery can be detachably mounted, When viewed from the first direction, the central axis of the battery mounting portion is arranged to be offset to one side in the third direction with respect to the axis of the handle.

14. The working machine according to claim 13, characterized in that: The central axis of the battery mounting portion is parallel to the handle axis.

15. The working machine according to claim 13, characterized in that: The central axis of the battery mounting portion is parallel to the motor axis.

16. The working machine according to any one of claims 1 to 13, characterized in that: Also available: a motor housing accommodating the motor, The cassette has a receiving portion for receiving the fastener, and a cassette cover for covering a portion of the receiving portion. The motor housing is provided with a recessed portion to avoid interference with the cassette cover.

17. The working machine according to any one of claims 1 to 13, characterized in that: Also available: a motor housing accommodating the motor, The cassette has a receiving portion for receiving the fastener, and a cassette cover for covering a portion of the receiving portion. The cassette cover is provided with a recessed portion to avoid interference with the motor housing.

18. A working machine, characterized in that: have: a cassette having a generally cylindrical shape and accommodating a plurality of fasteners rolled into a spiral shape therein; an ejection portion to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in the first direction; a force applying portion, which applies force to the striking portion toward one side of the first direction; a rolling-up portion, which resists the force applied by the force applying portion and rolls the striking portion upward toward the other side of the first direction; a motor that generates a driving force to drive the upper portion of the roll; A handle, which is held by the operator; as well as a motor housing accommodating the motor, The motor housing is provided with a recessed portion to avoid interference with the cassette.

19. A working machine, characterized in that: have: a cassette that receives a plurality of fasteners therein; an ejection portion to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in the first direction; a force applying portion, which applies force to the striking portion toward one side of the first direction; a rolling portion that rolls up the striking portion toward the other side of the first direction by resisting the force of the force applying portion by rotating around a rolling axis extending in a direction intersecting the first direction; as well as a motor that generates a driving force to drive the upper portion of the roll, The cassette is disposed on the roll axis.

20. The working machine according to any one of claims 1 to 13, characterized in that: have: a housing having a motor case for accommodating the motor and a handle for the operator to hold, A space portion is formed in the housing between the housing and the magazine to prevent interference with the fastener when the fastener is accommodated in the magazine.

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