Working machine

Abstract

A working machine 10 comprises: a magazine 54 for internally accommodating a plurality of fasteners; an ejecting unit 32 to which the fasteners are supplied; and a driver blade 30 for striking the fasteners supplied to the ejecting unit 32, by moving downward in a vertical direction AR1. The working machine 10 additionally comprises: an urging portion for urging the driver blade 30 downward; a conversion mechanism 17 for winding the driver blade 30 upward in the vertical direction AR1; and an electric motor 15 for generating a driving force for driving the conversion mechanism 17. The magazine 54 is provided in a position overlapping the electric motor 15 when viewed in the direction of an axis of rotation AX2 of the electric motor 15.

Description

Work equipment

[0001] The present invention relates to a work machine.

[0002] Patent Document 1 describes an electric nailer having a roll magazine that stores a plurality of fasteners in a roll form.

[0003] International Publication No. 2021 / 084993

[0004] However, because the roll magazine has a large external size, the overall dimensions of the work machine tend to increase in order to avoid interference with the motor housing. The increase in size of the work machine leads to a decrease in operability and workability for the operator. Furthermore, the decrease in operability and workability leads to a decrease in the convenience of the work machine. Therefore, there is a demand for a work machine with improved convenience.

[0005] In one embodiment, the work machine comprises a magazine that stores a plurality of fasteners therein, an ejection unit to which the fasteners are supplied, an impact unit that moves to one side in a first direction to strike the fasteners supplied to the ejection unit, a biasing unit that biases the impact unit toward one side in the first direction, a winding unit that winds up the impact unit toward the other side in the first direction against the biasing force of the biasing unit, and a motor that generates a driving force to drive the winding unit, and the magazine is positioned so as to overlap with the motor when viewed in the direction of the motor's rotational axis.

[0006] Another embodiment of the work machine includes a magazine having an approximately cylindrical shape and containing a plurality of spirally wound fasteners therein, an ejection section to which the fasteners are supplied, an impact section that moves to one side in a first direction to strike the fasteners supplied to the ejection section, a biasing section that biases the impact section to one side in the first direction, a winding section that winds up the impact section to the other side in the first direction against the biasing force of the biasing section, a motor that generates a driving force to drive the winding section, a handle that is held by an operator, and a motor case that houses the motor, and the motor case is provided with a recess to avoid interference with the magazine.

[0007] In another embodiment, the working machine includes a magazine that stores a plurality of fasteners therein, an ejection unit to which the fasteners are supplied, an impact unit that moves to one side in a first direction to strike the fasteners supplied to the ejection unit, a biasing unit that biases the impact unit toward one side in the first direction, a winding unit that rotates around a winding axis extending in a direction intersecting the first direction to wind up the impact unit toward the other side in the first direction against the biasing force of the biasing unit, and a motor that generates a driving force to drive the winding unit, and the magazine is arranged on the winding axis.

[0008] According to the present invention, it is possible to provide a work machine with improved convenience.

[0009] 16 is an external side view of a working machine according to a first embodiment of the present invention. FIG. 17 is an internal cross-sectional view of a portion of the working machine. FIG. 18 is a top external view of the working machine. FIG. 19 is an external view of a conversion mechanism and an impact mechanism provided in the working machine. FIG. 20 is a front external view of the working machine. FIG. 21 is a rear external view of the working machine. FIG. 22 is a side view showing the external appearance of the opposite side to the external appearance of the working machine shown in FIG. 1. FIG. 23 is a rear external view of the working machine shown in FIG. 1 in the motor axial direction. FIG. 24 is a cross-sectional view taken along line A-A in FIG. 3. FIG. 25 is a right external view showing the side structure of a working machine according to a second embodiment of the present invention. FIG. 26 is a top external view of the working machine shown in FIG. 27. FIG. 28 is a front external view of the working machine shown in FIG. 28. FIG. 29 is a left external view of the working machine shown in FIG. 29. FIG. 30 is a rear external view of the working machine shown in FIG. 30. FIG. 31 is a bottom external view of the working machine shown in FIG. 31. FIG. 32 is a bottom external view showing the nail loading state of the working machine shown in FIG. 32. FIG. 33 is a cross-sectional view taken along line B-B in FIG. 33. FIG. 34 is a top external view showing a method of opening the magazine cover of the working machine shown in FIG. 34. FIG. 35 is a bottom external view showing a method of opening the magazine cover of the working machine shown in FIG. 35. A cross-sectional view taken along line CC of Figure 20. A left-side external view showing a nail loading method for the work machine shown in Figure 15. A cross-sectional view taken along line DD of Figure 22. A cross-sectional view taken along line EE of Figure 22. An internal cross-sectional view showing the airflow path for air supplied from the fan of the work machine shown in Figure 15 to the solenoid. An internal cross-sectional view showing the airflow path for air exhausted from the exhaust port of the cylinder of the work machine shown in Figure 15 to the solenoid. A cross-sectional view showing the exhaust state inside the cylinder of the work machine shown in Figure 26.

[0010] A working machine according to an embodiment will be described with reference to the drawings.

[0011] (First Embodiment) Fig. 1 is an exterior side view of a work machine 10 according to a first embodiment, and Fig. 2 is a cross-sectional view of a portion of the interior of the work machine 10. Fig. 3 is an exterior top view of the work machine 10. The work machine 10 is, for example, an electric nailer, and has a housing 11, a striking mechanism 12, a nose portion 13, a power supply portion 14, an electric motor 15, a gear case 16, a conversion mechanism 17, a pressure accumulator vessel 18, a supply mechanism 19, and a magazine 54.

[0012] In the following description, the upper part of the pages of Figures 1 and 2 will be referred to as "upper," the lower part as "lower," the right side of the pages as "front," the left side of the pages as "rear," the near side of the pages as "right," and the far side of the pages as "left." The up-down direction will also be referred to as "first direction AR1," the lower side as "one side of the first direction AR1," and the upper side as "the other side of the first direction AR1." The front-to-rear direction will also be referred to as "second direction AR2," the front as "one side of the second direction AR2," and the rear as the other side of the second direction AR2. As shown in Figure 3, the left-to-right direction intersecting the first direction AR1 and the second direction AR2 will also be referred to as "third direction AR3," the right side as "one side of the third direction AR3," and the left side as "the other side of the third direction AR3."

[0013] <Housing 11> The housing 11 is an outer casing element of the work machine 10. The housing 11 has a cylinder case 20, a handle 21 connected to the cylinder case 20, a motor case 22 connected to the cylinder case 20, and a battery attachment portion 23 connected to the handle 21 and the motor case 22.

[0014] <Cylinder case 20> A cylinder 28 is supported by the cylinder case 20. The cylinder 28 is made of metal. The cylinder 28 is positioned relative to the cylinder case 20 in the direction of a first center line X1 parallel to a first direction (vertical direction) AR1 and in the radial direction (direction perpendicular to the first center line X1).

[0015] <Handle 21> As shown in Figure 3, the axis AX1 of the handle 21 extends along the second direction (front-rear direction) AR2 of the work machine 10. In other words, the axis AX1 of the handle 21 is parallel to the second direction AR2. It can also be said that the axis AX1 of the handle 21 extends in a direction intersecting the first direction (up-down direction) AR1. As shown in Figures 1 and 2, a trigger 51 is provided below the handle 21. An operator, i.e., a user, can operate the trigger 51 while grasping the handle 21. A trigger switch (not shown) is provided within the handle 21, and outputs an operation signal when an operating force is applied to the trigger 51. When the operating force on the trigger 51 is released, the trigger switch stops outputting the operation signal.

[0016] <Motor Case 22> The motor case 22 is a housing that houses the electric motor 15, gear case 16, and conversion mechanism 17 (described later). The motor case 22 has a cylindrical shape that extends along the rotational axis AX2 of the electric motor 15. The rotational axis AX2 of the electric motor 15 extends in a direction intersecting the first direction (vertical direction) AR1. As shown in FIG. 3 , the motor case 22 (i.e., the electric motor 15) is disposed on the right side (one side) of the handlebar 21 in the third direction (left-right direction) AR3. Furthermore, when viewed in the first direction (vertical direction), the rotational axis AX2 of the electric motor 15 is inclined with respect to the axis AX1 of the handlebar 21 on the right side of the handlebar 21 (one side of the third direction AR3). Specifically, the motor case 22 is inclined toward the axis AX1 of the handlebar 21 forward (one side) in the second direction AR2 in which the handlebar 21 extends. That is, the rotation axis AX2 of the electric motor 15 is inclined forward in the second direction AR2 toward the axis AX1 of the handle 21. Therefore, the rear end of the motor case 22 is located to the right of the front end with respect to the handle 21.

[0017] <Battery Mounting Portion 23> The battery mounting portion 23 is disposed at the rear ends of the handle 21 and the motor case 22 (i.e., the other side in the second direction AR2). The power supply unit 14, which will be described later, is detachably attached to the battery mounting portion 23. As shown in FIG. 3 , the center axis AX3 of the battery mounting portion 23 is parallel to the axis AX1 of the handle 21, i.e., the second direction AR2. The center axis AX3 of the battery mounting portion 23 is disposed at a position offset to one side (to the right) in the third direction (left-right direction) AR3 with respect to the handle 21. Therefore, the battery mounting portion 23 is connected to the handle 21 on the left side of its front end face and to the motor case 22 on the right side of its front end face.

[0018] 2 , the impact mechanism 12 has a piston 29 and a driver blade 30. The piston 29 is provided on one side (downward) in the first direction AR1 with respect to the pressure accumulator vessel 18, which will be described in detail later, and is constantly urged toward one side (downward) in the first direction AR1 by the pressure of a pressure chamber 27 provided in the pressure accumulator vessel 18. The piston 29 is movable along the first direction AR1 inside the cylinder 28. A seal member is attached to the outer peripheral surface of the piston 29. The seal member contacts the inner peripheral surface of the cylinder 28 to form a sealing surface.

[0019] The driver blade 30 is made of, for example, metal. The driver blade 30 is connected to the piston 29 below the piston 29 in the first direction AR1 and extends along the first center line X1. As described above, since the piston 29 is movable in the first direction AR1, the driver blade 30 is also movable in the first direction AR1. That is, the impact axis AX4 of the impact mechanism 12 extends along the first direction AR1. The driver blade 30 has a plurality of racks 47 (see FIG. 4 ) arranged at predetermined intervals along the first direction AR1, which is the direction of movement. As shown in FIG. 3 , the racks 47 protrude relative to the driver blade 30 in a protruding direction AR5 toward the rotational axis AX2 of the electric motor 15. The protruding direction AR5 is perpendicular to the rotational axis AX2 of the electric motor 15. As described above, when viewed in the first direction (viewed from above and below), the rotation axis AX2 of the electric motor 15 is inclined with respect to the axis AX1 of the handle 21, and therefore the protrusion direction AR5 intersects with the axis AX1 of the handle 21 at a non-perpendicular angle.

[0020] 1, the movement of the driver blade 30 to one side (downward) in the first direction AR1 in FIG. 1 is referred to as "downward." The movement of the driver blade 30 to the other side (upward) in the first direction AR1 in FIG. 1 is referred to as "upward."

[0021] <Nose portion 13> The nose portion 13 is positioned relative to the cylinder case 20 in the direction of the first center line X1 and in the radial direction of the cylinder 28. The nose portion 13 has a bumper support portion 31, an injection portion 32, and a cylindrical portion 33. The bumper support portion 31 is cylindrical and has a guide hole 34. The guide hole 34 is positioned with its center on the first center line X1.

[0022] A bumper 35 is disposed within the bumper support portion 31. The bumper 35 is integrally molded from a synthetic rubber such as an elastomer. A guide hole 36 is formed in the bumper 35 and is centered on the first center line X1. The driver blade 30 is movable within the guide hole 36 in a first direction AR1.

[0023] The ejection portion 32 is connected to the bumper support portion 31 and the cylindrical portion 33, and protrudes downward in the first direction AR1 from the bumper support portion 31. The ejection portion 32 has an ejection path 37 that is concentrically disposed about the first center line X1. The driver blade 30 is movable within the ejection path 37 along the first direction AR1. Nails N (see FIG. 7), which are fasteners, stored in a magazine 54 (described later) are supplied to the ejection path 37 of the ejection portion 32.

[0024] A push lever 72 is attached to the lower end of the ejection part 32 in the first direction AR1. The push lever 72 is movable relative to the ejection part 32 within a predetermined range in the first direction AR1.

[0025] <Power supply unit 14> The power supply unit 14 is detachably attached to the battery mounting portion 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 has a housing case and a plurality of battery cells housed in the housing case. The battery cells are secondary batteries that can be charged and discharged, and any of lithium-ion batteries, nickel-metal hydride batteries, lithium-ion polymer batteries, and nickel-cadmium batteries can be used.

[0026] <Electric motor 15> The electric motor 15 receives a supply of electric power from the power supply unit 14 to rotate and drive the impact mechanism 12. The electric motor 15 is disposed in a motor case 22. The electric motor 15 is a brushless motor having a rotor and a stator. As shown in FIG. 1 , when viewed in the left-right direction (third direction AR3), a rotation axis AX2, which is the center of rotation of the electric motor 15, is perpendicular to the first center line X1.

[0027] <Gear case 16> The gear case 16 is provided in front of the electric motor 15 inside the motor case 22. The gear case 16 is cylindrical and does not rotate relative to the nose portion 13 and the cylindrical portion 33. A reduction mechanism having an input element, an output element, and multiple sets of planetary gear mechanisms is provided inside the gear case 16. 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.

[0028] <Conversion mechanism 17> Figure 4 is an external view of the conversion mechanism 17, piston 29, and driver blade 30. The conversion mechanism 17 is provided in the motor case 22 on the front side of the gear case 16, and converts the rotational force of the output element of the reduction mechanism in the gear case 16 into a moving force of the driver blade 30 along the first direction AR1. The conversion mechanism 17 has a drive shaft 45, a pinwheel 46, and a pinion pin 48. The drive shaft 45 is rotatably supported by a bearing around the rotation axis AX2 of the electric motor 15. The pinwheel 46 is fixed to the drive shaft 45. The pinwheel 46 has a plurality of pinion pins 48.

[0029] The multiple pinion pins 48 are arranged at intervals in the rotational direction of the pinwheel 46. The multiple pinion pins 48 are arranged within a predetermined angular range in the rotational direction of the pinwheel 46. The multiple pinion pins 48 are capable of independently engaging with and disengaging from the multiple racks 47 provided on the driver blade 30 described above.

[0030] 4 and at least one pinion pin 48 engages with at least one rack 47, the rotational force of the pinwheel 46 is transmitted to the driver blade 30 of the striking mechanism 12. The transmitted rotational force causes the driver blade 30 to move to the other side (upward) in the first direction AR1 against the pressure in the pressure chamber 27. In other words, the conversion mechanism 17 rotates by the driving force of the electric motor 15 while engaged with the driver blade 30, and functions as a winding section that winds up the driver blade 30 to the other side (upward) in the first direction AR1.

[0031] When all of the pinion pins 48 are released from the rack 47, the rotational force of the pinwheel 46 is not transmitted to the driver blade 30. As a result, the driver blade 30 is lowered by the pressure of the pressure chamber 27, which will be described later, and strikes the nail N supplied to the injection unit 32. In other words, the piston 29 and the driver blade 30 move to one side (downward) in the first direction AR1, thereby functioning as a striking unit that strikes the nail N, which is a fastener supplied to the injection unit 32. As a result, the nail N is struck by the driver blade 30 and driven into the workpiece (the material to be driven).

[0032] <Pressure Accumulator Container 18> The pressure accumulator container 18 shown in FIG. 1 has a cap 24. A head cover 26 is attached to the upper side of the cylinder case 20 in the first direction AR1, and the pressure accumulator container 18 is disposed within the cylinder case 20 and the head cover 26. A pressure chamber 27 is provided within the pressure accumulator container 18. The pressure chamber 27 is filled with a gas. Any compressible gas may be used as the gas. Examples of the gas include air and inert gases such as nitrogen gas and rare gases. As described above, the pressure of the pressure chamber 27 provided in the pressure accumulator container 18 constantly biases the striking mechanism 12 toward one side (downward) in the first direction AR1. In other words, the pressure chamber 27 functions as a biasing portion that biases the striking mechanism 12 toward one side (downward) in the first direction AR1. Note that the following description will be given assuming that the pressure chamber 27 is filled with air.

[0033] <Supply mechanism 19> The supply mechanism 19 supplies nails N stored in a magazine 54 (described later) along a fourth direction AR4 into the ejection unit 32. The fourth direction AR4 intersects with the first direction AR1 and is non-parallel to the rotation axis AX2 of the electric motor 15 (i.e., the second direction AR2).

[0034] The supply mechanism 19 has a spring 59, a solenoid 60, an iron core 61, and a feeder unit 62. The feeder unit 62 is capable of reciprocating along the fourth direction AR4 together with the iron core 61. The feeder unit 62 has a plurality of feed pawls (not shown) provided at predetermined intervals along the fourth direction AR4.

[0035] The solenoid 60 includes a bobbin, a coil disposed within the bobbin, and the like. The iron core 61 is capable of reciprocating motion relative to the bobbin of the solenoid 60 in the fourth direction R4. The iron core 61 is made of a magnetic material such as iron. The spring 59 is a biasing member that biases the iron core 61 forward in the fourth direction AR4, positioning the feeder unit 62 at its initial position. The coil of the solenoid 60 is connected to the power supply unit 14, and generates a magnetic attraction force when current is supplied from the power supply unit 14. This magnetic attraction force causes the iron core 61 to move rearward in the fourth direction AR4 against the biasing force of the spring 59. As the iron core 61 moves, the feeder unit 62 also moves rearward in the fourth direction AR4 to a predetermined position (the nail attachment position).

[0036] At the time when this movement starts, the feeding claws provided on the feeder section 62 have not entered between the multiple nails N connected by the connecting elements described below. Therefore, the multiple nails N are not moved forward in the fourth direction AR4. When the feeder section 62 reaches the nail installation position, the feeding claws provided on the feeder section 62 enter between the nails N connected by the connecting elements.

[0037] When the supply of current from the power supply unit 14 is terminated, the magnetic attraction force of the coil is released. As a result, the iron core 61 moves forward in the fourth direction AR4 due to the biasing force of the spring 59. As the iron core 61 moves, the feeder unit 62 also moves forward in the fourth direction AR4 from the nail attachment position to its initial position. When the feeder unit 62 moves forward in the fourth direction AR4, the feeding claws moving together with the feeder unit 62 supply the nails N to the ejection unit 32 on the forward side in the fourth direction AR4. As a result, the feeder unit 62 positions the nail N located at the head of the connecting element, among the nails N stored in the magazine 54, below the driver blade 30.

[0038] <Magazine 54> FIG. 5 is a front external view of the work machine 10, and FIG. 6 is a rear external view of the work machine 10. FIG. 7 is a left external view of the work machine 10, FIG. 8 is a rear external view of the work machine 10 in the motor axial direction, and FIG. 9 is a cross-sectional view taken along line A-A in FIG. 3. The magazine 54 is supported by the supply mechanism 19. The magazine 54 has a generally cylindrical shape centered on the axis AX5 and a flat shape in which the diameter about the axis AX5 is larger than the size in the axis AX5 direction. As shown in FIG. 3, the magazine 54 is disposed on one side (below) of the handle 21 and the motor case 22 (i.e., the electric motor 15) in the first direction (vertical direction) AR1 and behind the supply mechanism 19 (the other side in the second direction AR2). 5 and 6 , the magazine 54 is disposed with its axis AX5 inclined in the first direction (vertical direction) AR1, i.e., with respect to the impact axis AX4 of the impact mechanism 12. Specifically, the axis AX5 of the magazine 54 is inclined toward the rotation axis AX2 of the electric motor 15 on the other side (upward) of the first direction AR1. In other words, the axis AX5 of the magazine 54 is inclined in a direction such that the upper end of the magazine 54 is closer to the rotation axis AX2 of the electric motor 15 than the lower end of the magazine 54.

[0039] The magazine 54 has a drum portion 63 and a magazine cover 64, and stores a plurality of connected fasteners, namely nails N, in a roll shape inside. The plurality of nails N are connected to one another by connecting elements such as adhesive or wire, and each nail N extends parallel to the axis line AX5. The connected plurality of nails N are arranged in the drum portion 63 in a spiral shape wound around the axis line AX5, i.e., in a roll shape.

[0040] The drum portion 63 is hollow and has a disk-shaped bottom surface 63a formed downward and a side surface 63b rising upward from the right edge of the bottom surface 63a. In other words, there are openings above and to the left of the magazine 54 where the drum portion 63 is not formed. A plurality of linked nails N are supplied into the drum portion 63 through these openings. The supplied plurality of nails N are supported by the bottom surface 63a and the side surface 63b and stored inside the drum portion 63. In other words, the drum portion 63 functions as a storage portion that stores a plurality of fasteners.

[0041] The front end of the side surface 63b of the drum 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 portion 63 is connected to a magazine cover 64, which will be described later.

[0042] The magazine cover 64 covers an opening of the magazine 54 where the drum portion 63 is not formed, and is attached so as to be able to open and close relative to the drum portion 63. Specifically, the magazine cover 64 has an upper surface 64a and a side surface 64b that rises downward from the left edge of the upper surface 64a. The rear end of the side surface 64b of the magazine cover 64 and the rear end of the side surface 63b of the drum portion 63 are connected by a connecting mechanism 65 such as a hinge.

[0043] The rotation axis AX6 of the coupling mechanism 65 is parallel to the axis AX5 of the magazine 54. This coupling mechanism 65 allows the magazine cover 64 to rotate (i.e., open and close) around the rotation axis AX6 relative to the drum portion 63 fixed to the housing 11. Note that FIGS. 5 and 7 show the magazine cover 64 in an open state. In this state, multiple fasteners are housed inside the drum portion 63 as described above. Furthermore, when the magazine cover 64 is in an open state, as shown in FIGS. 5 and 7, the magazine cover 64 is positioned rearward and above the drum portion 63 of the magazine 54. As described above, the center axis AX3 of the battery mounting portion 23 located at the rear end of the handle 21 is offset to the right with respect to the axis AX1 of the handle 21, thereby preventing the magazine cover 64 from interfering with the battery mounting portion 23 when in the open state.

[0044] In the work machine 10 of the first embodiment, as shown in FIG. 8 , the magazine 54 is disposed in a position overlapping with the electric motor 15 when viewed in the direction of the rotational axis AX2 of the electric motor 15. Specifically, the drum portion 63 of the magazine 54 is disposed in a position overlapping with the electric motor 15 when viewed in the direction of the rotational axis AX2 of the electric motor 15 (overlapping portion G1 in FIG. 8 ). That is, the drum portion 63 of the magazine 54 is disposed rearward of the electric motor 15 in the front-rear direction (second direction AR2) shown in FIG. 1 , and the drum portion 63 of the magazine 54 is disposed leftward of the electric motor 15 (see FIG. 1 ) in the left-right direction (third direction AR3) shown in FIG. 6 . In this case, the drum portion 63 of the magazine 54 is disposed in a position overlapping with the electric motor 15 when viewed in the direction of the rotational axis AX2 of the electric motor 15. In other words, the position of the drum portion 63 of the magazine 54 is shifted rearward and to the left of the electric motor 15 so that it is positioned so as to overlap with the electric motor 15 when viewed in the direction of the rotation axis AX2 of the electric motor 15.

[0045] 1, 2, 3, and 9 show the magazine cover 64 in a closed state. By closing the magazine cover 64, it is possible to prevent the multiple fasteners housed in the drum portion 63 from falling out.

[0046] As described above, the motor case 22 has a cylindrical shape. However, as shown in FIGS. 7 and 9 , a recess 22a is provided in a portion of the motor case 22. The recess 22a is formed on the lower rear side of the motor case 22, i.e., in a position facing the upper surface 64a of the magazine cover 64 when the magazine cover 64 is closed. The upper surface 64a of the magazine cover 64 is formed in an arc shape centered on the axis AX5 of the magazine 54 so as to protrude toward the motor case 22. The wall surface 22b of the recess 22a is also formed in an arc shape so as to recess in a direction away from the magazine cover 64. The outer diameter D1 of the motor case 22 in the region where the recess 22a is formed is smaller than the outer diameter D2 of the other regions of the motor case 22 (see FIG. 9 ). This prevents interference between the magazine cover 64 and the motor case 22, which would prevent the magazine cover 64 from being able to be closed. That is, the motor case 22 is provided with the recess 22a to avoid interference with the magazine cover 64. The recess 22 a allows the motor case 22 and the magazine cover 64 to be positioned close to each other, and an imaginary circle 22 c that is coaxial with the motor case 22 and has a diameter equal to the outer diameter D 2 comes into contact with the magazine cover 64 .

[0047] Instead of forming the recess 22a in the motor case 22, a recess that avoids interference with the motor case 22 may be formed in the magazine cover 64 or the drum portion 63. In this case, the recess is formed in a position on the upper surface 64a of the magazine cover 64 that faces the motor case 22 when the magazine cover 64 is in the closed state. This provides the same effect as when the recess 22a is formed in the motor case 22. Furthermore, the recess 22a may be a hole, or the drum portion 63 and the motor case 22 may be formed as an integrated part.

[0048] According to the embodiment described above, the following advantageous effects can be obtained.

[0049] (1) The drum portion 63 of the magazine 54 is positioned rearward of the electric motor 15 in the front-to-rear direction (second direction AR2), and is positioned to the left of the electric motor 15 in the left-to-right direction (third direction AR3). Furthermore, the drum portion 63 of the magazine 54 is positioned so as to overlap with the electric motor 15 when viewed from the direction of the rotation axis AX2 of the electric motor 15. This allows the length of the working machine 10 in the up-down direction (first direction AR1) and left-to-right direction (third direction AR3) to be shortened, thereby enabling the working machine 10 to be made more compact. As a result, deterioration in the operability and workability of the working machine 10 can be suppressed, and the convenience of the working machine 10 can be improved.

[0050] (2) When viewed in the first direction, the axis AX1 of the handle 21 gripped by the operator extends along the second direction AR2 that is inclined relative to the rotation axis AX2 of the electric motor 15. This allows the length of the work machine 10 along the second direction AR2 to be shorter than in a work machine in which the axis AX1 of the handle 21 and the rotation axis AX2 of the electric motor 15 are arranged parallel to each other. As a result, the work machine 10 can be made smaller, making it easier for the operator to handle the work machine 10 and improving workability.

[0051] (3) When viewed in the second direction, the axis AX5 of the magazine 54 is inclined with respect to the impact axis AX4 of the impact mechanism 12, which extends in the first direction AR1. This allows the length of the work machine 10 along the first direction AR1 to be shorter than in a work machine in which the axis AX5 of the magazine 54 and the impact axis AX4 of the impact mechanism 12 are arranged parallel to each other. As a result, the work machine 10 can be made smaller, making it easier for the operator to handle the work machine 10 and improving workability.

[0052] (4) The magazine 54 is disposed 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 magazine 54 is inclined toward the rotation axis AX2 of the electric motor 15 on the other side (up) in the first direction AR1. The electric motor 15 is disposed 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 (forward) in the second direction AR2. Therefore, the upper right side of the magazine 54 is positioned lower than the upper left side, thereby preventing the magazine 54 from interfering with the motor case 22, which is disposed to the right of the handle 21. Furthermore, the magazine 54 can be disposed above the first direction AR1 while avoiding interference between the magazine 54 and the motor case 22, compared to when the axis AX5 of the magazine 54 is parallel to the first direction AR1 (i.e., the impact axis AX4 of the impact mechanism 12). As a result, the size of the work machine 10 in the left-right and up-down directions can be reduced, making it easier for the worker to handle the work machine 10 and improving workability.

[0053] (5) The battery mounting portion 23 is disposed at the other end (rear) of the handle 21 in the second direction AR2. When viewed in the first direction, the center axis AX3 of the battery mounting portion 23 is offset to one side (right) in the third direction AR3 with respect to the axis AX1 of the handle 21. This reduces the amount by which the battery mounting portion 23 protrudes to the left of the handle 21 compared to when the center axis AX3 of the battery mounting portion 23 is aligned with the axis AX1 of the handle 21. As a result, the size of the work machine 10 in the left-right direction can be reduced, making it easier for the operator to handle the work machine 10 and improving workability. Furthermore, when the magazine cover 64 of the magazine 54 is in the open position, interference between the magazine cover 64 and the battery mounting portion 23 is suppressed.

[0054] (6) The motor case 22 is provided with a recess 22a that prevents interference with the magazine cover 64. This prevents the magazine cover 64 from interfering with the motor case 22, preventing the magazine cover 64 from being unable to be closed.

[0055] The above-described embodiment can be modified as follows.

[0056] <Modification> The center axis AX3 of the battery mounting portion 23 is not limited to being parallel to the axis AX1 of the handle 21, i.e., the second direction AR2. For example, the center axis AX3 of the battery mounting portion 23 may be parallel to the rotational axis AX2 of the electric motor 15, i.e., non-parallel to the second direction AR2. In this case, the length of the battery mounting portion 23 and the power supply unit 14 attached to the battery mounting portion 23 along the second direction AR2 is shorter than when the center axis AX3 of the battery mounting portion 23 is parallel to the second direction AR2. In other words, the overall length of the working machine 10 along the second direction AR2 can be shortened. As a result, the operator can easily handle the working machine 10, thereby improving the workability of using the working machine 10. Furthermore, even in this modification, interference between the magazine cover 64 of the magazine 54 and the battery mounting portion 23 is suppressed when the magazine cover 64 is in the open position.

[0057] (Embodiment 2) Fig. 10 is a right side external view of a working machine 10 according to Embodiment 2, Fig. 11 is a top external view of the working machine 10, Fig. 12 is a front external view of the working machine 10, Fig. 13 is a left side external view of the working machine 10, Fig. 14 is a rear external view of the working machine 10, and Fig. 15 is a bottom external view of the working machine 10. In Embodiment 2, the working machine 10 is, for example, an electric nail gun, as in Embodiment 1. As shown in Fig. 10, the working machine 10 has a housing 11, a striking mechanism 12, a nose portion 13, a power supply portion 14, an electric motor 15, a gear case 16, a conversion mechanism 17, a pressure accumulator container 18, a supply mechanism 19, and a magazine 54. As shown in Figs. 14 and 15, the magazine 54 includes a substantially cylindrical drum portion 63. The conversion mechanism 17 shown in Figure 10 is a winding section that includes the pinwheel 46 shown in Figure 12 and rotates around a winding axis AX8 extending in a direction intersecting the vertical direction (first direction AR1), thereby winding up the piston 29 and driver blade 30 toward the other (upward) side in the vertical direction (first direction AR1) against the biasing force of the biasing section (pressure chamber 27 shown in Figure 17).

[0058] The position of the magazine 54 in the work machine 10 of the second embodiment will be described. In the work machine 10 of the second embodiment, as shown in Fig. 11 , 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 to each other.

[0059] 14, in the work machine 10 of the second embodiment, similarly to the work machine 10 of the first embodiment, the magazine 54 is provided at a position overlapping with the electric motor 15 when viewed in the direction of the rotation axis AX2 of the electric motor 15, i.e., when viewed externally from the rear of the work machine 10. Specifically, the substantially cylindrical drum portion 63 provided in the magazine 54 of the work machine 10 of the second embodiment is provided at a position overlapping with the electric motor 15 when viewed externally from the rear of the work machine 10 in FIG.

[0060] Specifically, by positioning the drum portion 63 of the magazine 54 further rearward of the electric motor 15 (on the opposite side of the injection unit 32 from the electric motor 15 in the second direction AR2) in the front-to-rear direction (second direction AR2) shown in FIG. 10 , the drum portion 63 of the magazine 54 in the up-down direction (first direction AR1) is raised to approximately the same height as the electric motor 15. As a result, the drum portion 63 of the magazine 54 is positioned so as to overlap with the electric motor 15 in the rear external view of the work machine 10 in FIG. 14 , and the drum portion 63 of the magazine 54 is provided at a high position so that the motor axis AX2 passes near the center of the drum portion 63 of the magazine 54 in the up-down direction (first direction AR1). In other words, the magazine 54 is positioned on the motor axis AX2, and the drum portion 63 of the magazine 54 is also positioned on the motor axis AX2.

[0061] Furthermore, by moving the position of the drum portion 63 of the magazine 54 further rearward from the electric motor 15 compared to the work machine 10 of the first embodiment, it is possible to minimize the distance of the magazine 54 from the electric motor 15 in the left-right direction (third direction AR3). As a result, the motor axis AX2 is positioned so as to pass near the center of the drum portion 63 of the magazine 54 in the left-right direction (third direction AR3).

[0062] Therefore, in the work machine 10 of the second embodiment, the drum portion 63 of the magazine 54 is positioned further rearward compared to the work machine 10 of the first embodiment, and thus the drum portion 63 is positioned at an even higher position. As a result, when viewed externally from the rear of the work machine 10, the motor axis AX2 is positioned so as to pass near the center of the drum portion 63 of the magazine 54 in the up-down direction (first direction AR1).

[0063] In other words, the magazine 54 is disposed on the winding axis AX8 as shown in Fig. 12. In the working machine 10 of the second embodiment, the motor axis AX2 and the winding axis AX8 are coaxial, but the motor axis AX2 and the winding axis AX8 do not necessarily have to be coaxial and may be offset from each other. However, even if the motor axis AX2 and the winding axis AX8 are offset from each other, the magazine 54 is disposed on the winding axis AX8.

[0064] Furthermore, when an operator holds the work implement 10 to perform nailing work, the operator himself is present behind the work implement 10. Therefore, having the magazine 54 protrude moderately to the rear of the work implement 10 does not particularly impede the nailing work.

[0065] As described above, in the work machine 10 of embodiment 2, by positioning the magazine 54 so that the motor axis AX2 passes near the center of the drum portion 63 of the magazine 54 in the vertical direction (first direction AR1), it is possible to shorten the distance L1 from the center of the pinwheel 46 (motor axis AX2) to the lower end (injection port 32a) of the injection section 32, as shown in Figure 12.

[0066] That is, in the work machine 10 of the second embodiment, the magazine 54 is positioned so as to be shifted upward, and therefore the supply mechanism 19 including the magazine 54 shown in Fig. 10 is also positioned so as to be shifted upward. As a result, the distance L1 from the center of the pinwheel 46 (motor axis AX2) to the lower end (injection port 32a) of the injection unit 32 can be shortened, and the height of the work machine 10 can be reduced.

[0067] Next, the supply mechanism 19 connected to the magazine 54 will be described. As shown in Figures 10 and 13, the work machine 10 has a feeder unit 62 that feeds nails N (see Figure 17) from the magazine 54 to the injection unit 32 along a supply axis AX7. The supply axis AX7 is an axis that supplies the nails N stored in the drum unit 63 from the drum unit 63 to the injection unit 32. In other words, the nails N pulled out from the drum unit 63 of the magazine 54 are fed to the injection unit 32 along the supply axis AX7 by the supply mechanism 19 (see Figure 17). As shown in Figures 11 and 15, the supply axis AX7 is inclined with respect to the motor axis AX2 when viewed in the up-down direction (first direction AR1). As a result, the drum portion 63 of the magazine 54 is slightly offset from the handle axis AX1 in the left-right direction (third direction AR3) shown in Figure 11, and as a result, interference between the electric motor 15 and the drum portion 63 is prevented in the left-right direction (third direction AR3).

[0068] Here, Fig. 16 is a bottom external view showing the working machine 10 in a nail-loaded state, and Fig. 17 is a cross-sectional view taken along line B-B in Fig. 16. As shown in Figs. 13, 15, 16, and 17, the working machine 10 has a cylinder 28 that movably houses a piston 29, which serves as a striking unit, and a driver blade 30, and the supply mechanism 19 includes a solenoid 60 that drives a feeder unit 62. The coil of the solenoid 60 is connected to the power supply unit 14, and when current is supplied from the power supply unit 14, the coil generates a magnetic attractive force. This magnetic attractive force moves the feeder unit 62 to a predetermined position (nail loading position) rearward in the fourth direction AR4 along the supply axis AX7.

[0069] When the current supply from the power supply unit 14 is terminated, the magnetic attraction force of the coil is released. As a result, the feeder unit 62 moves forward in the fourth direction AR4 from the nail attachment position, and this movement of the feeder unit 62 supplies the nails N to the ejection unit 32 on the forward side in the fourth direction AR4. As a result, the feeder unit 62 positions the nail N located at the top of the connecting element, among the nails N stored in the drum unit 63 of the magazine 54, below the driver blade 30.

[0070] 13, the supply mechanism 19 includes a blade guide 40 and a nail guide 41 that guide the nails N (see FIG. 16) stored in the drum portion 63 to the ejection portion 32, and a nail stopper 42 that positions the nails N. As shown in FIG. 15, the solenoid 60 is provided on the solenoid output shaft 60a and is covered by a solenoid cover (cover portion) 55.

[0071] 16 and 17, the connecting nails J1 wound up in a roll are stored in the drum section 63. The top surface 63d and side surface 63b of the drum section 63 are covered by a magazine cover 64 (see FIG. 21). Then, in the supply mechanism 19, the connecting nails J1 in a connected state are pulled out from the drum section 63, and the connected nails J1, still connected in a connected state, are fed forward by the feeder section 62 along the supply axis AX7 in order, and the nails N are placed one by one in the injection path 37.

[0072] Next, a method for loading connecting nails J1 into the drum portion 63 of the magazine 54 will be described. Figure 18 is a top external view showing how to open the magazine cover, Figure 19 is a bottom external view showing how to open the magazine cover, and Figure 20 is a left external view showing how to open the magazine cover. Also, Figure 21 is a cross-sectional view taken along line CC in Figure 20, Figure 22 is a left external view showing how to load nails into the work machine 10 in Figure 15, Figure 23 is a cross-sectional view taken along line D-D in Figure 22, and Figure 24 is a cross-sectional view taken along line E-E in Figure 22.

[0073] As shown in FIG. 16 , the drum unit 63 can accommodate a roll of connecting nails J1. As shown in FIGS. 18 to 21 , in the magazine 54, the top surface 63d and side surface 63b of the drum unit 63 are opened by rotating the magazine cover 64. Specifically, as shown in FIG. 21 , the magazine cover 64 is L-shaped, which allows it to cover the top surface 63d and side surface 63b of the drum unit 63. The rotation axis AX6 for rotating the magazine cover 64 is inclined relative to the axis AX5 of the drum unit 63 (see FIG. 14 ). Furthermore, as shown in FIG. 10 , a connecting portion 39 is provided at the portion connecting the battery mounting portion 23 of the power supply unit 14 and the motor case 22, and a space 43 is formed between the connecting portion 39 and the magazine cover 64 of the drum unit 63.

[0074] Therefore, as shown in Figures 18 to 20, when the magazine cover 64 is rotated about the rotation axis AX6, the magazine cover 64 rotates about the rotation axis AX6 while opening diagonally upward in the space 43. This allows the top surface 63d and side surface 63b of the drum part 63 to be widely opened, as shown in Figures 21 to 24. Then, with the top surface 63d and side surface 63b widely opened, the connecting nails J1 wound in a roll are loaded into the drum part 63 from a loading direction K1 diagonally upward. At this time, as shown in Figure 21, a rotation shaft 63c is provided within the drum part 63 so that the rolled connecting nails J1 can be sequentially fed out. Therefore, the rolled connecting nails J1 must be loaded into the drum part 63 from above so that the center of the rolled connecting nails J1 fits onto the rotation shaft 63c.

[0075] Therefore, in the work machine 10 of the second embodiment, as shown in FIG. 23, a space 43 is formed between the connecting portion 39 and the drum portion 63, and the connecting portion 39 has a housing shape so as not to interfere with the roll-shaped connecting nails J1 when loading.

[0076] In this way, the housing shape of the connecting portion 39 of the working machine 10 is designed so as not to interfere with the roll of connecting nails J1 when the connecting nails J1 are loaded. Therefore, even in a working machine 10 having a structure in which the magazine 54 is shifted upward, such as the working machine 10 of this embodiment 2, the roll of connecting nails J1 can be loaded into the drum portion 63.

[0077] Next, we will explain the cooling of the solenoid 60 of the working machine 10. Figure 25 is an internal cross-sectional view showing the air passage for air supplied from the fan of the working machine 10 to the solenoid, Figure 26 is an internal cross-sectional view showing the air passage for air exhausted from the exhaust port of the cylinder of the working machine 10 to the solenoid, and Figure 27 is a cross-sectional view showing the exhaust state inside the cylinder of the working machine 10.

[0078] 26 and 27 , the work machine 10 of the second embodiment has a cylinder 28 equipped with exhaust ports 28a. A plurality of exhaust ports 28a are provided on the lower outer periphery of the cylindrical cylinder 28. The work machine 10 has an air passage 38 that sends air Q1 exhausted from the exhaust ports 28a of the cylinder 28 by the downward movement of the piston 29, which serves as the striking part, and the driver blade 30, toward the solenoid 60. The air passage 38 is formed within a solenoid cover (cover portion) 55 that houses the solenoid 60.

[0079] Specifically, a cylinder case 20 that houses the cylinder 28 is connected to a motor case 22 that houses the electric motor 15, and the motor case 22 is further connected to a solenoid cover 55. An air passage 38 that serves as a passage for air Q1 is provided inside the cylinder case 20, via the motor case 22, and extending to the solenoid cover 55. A plurality of exhaust ports 55a that discharge the air Q1 are formed in the lower part of the solenoid cover 55.

[0080] Therefore, as shown in FIG. 27 , when the piston 29 and driver blade 30 move downward in the vertical direction (first direction AR1), air Q1 located below the piston 29 inside the cylinder 28 is exhausted from the exhaust port 28a of the cylinder 28. As shown in FIG. 26 , the air Q1 exhausted from the exhaust port 28a passes through the air passages 38 provided in the cylinder case 20 and the motor case 22 and reaches the air passage 38 inside the solenoid cover 55. The air Q1 that reaches the air passage 38 inside the solenoid cover 55 is then sent through the air passages 38a and 38b toward the multiple exhaust ports 55a provided at the bottom of the solenoid cover 55. By blowing the air Q1 against the solenoid 60 provided inside the solenoid cover 55, the solenoid 60 can be cooled. The sent air Q1 is then exhausted to the outside of the solenoid cover 55 from the respective exhaust ports 55a as exhaust air P2.

[0081] As described above, in the work 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 driver blade 30 is used to cool the solenoid 60 by directing this air Q1 against the solenoid 60. Furthermore, dust is generated when a nail is driven. Therefore, by directing the air Q1 discharged from the cylinder 28 against the solenoid 60 and the feeder unit 62, it is possible to reduce the adhesion of dust generated when a nail is driven to the solenoid 60 and the feeder unit 62.

[0082] 25, a fan 56 is provided on the rotary 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 and a feeder unit 62 are provided on air passages 57a and 57b of the fan 56.

[0083] More specifically, when the fan 56 rotates due to rotation of the rotary shaft 15a of the electric motor 15, air Q1 is taken in as intake air P1 from outside the solenoid cover 55. The taken in air Q1 hits the solenoid 60 and the feeder section 62 and reaches the fan 56. The air Q1 taken in by the fan 56 changes direction and is discharged from the fan 56. Furthermore, the air Q1 discharged from the fan 56 hits the solenoid 60 and the feeder section 62, and is then discharged to the outside of the solenoid cover 55 as exhaust air P2.

[0084] Therefore, the solenoid 60 can be cooled by blowing the air Q1 taken in by the rotation of the fan 56 against the solenoid 60. Furthermore, by blowing the air Q1 taken in by the rotation of the fan 56 against the solenoid 60 and the feeder section 62, adhesion of dust generated when driving nails to the solenoid 60 and the feeder section 62 can be reduced.

[0085] In the work machine 10 of the second embodiment, the drum portion 63 of the magazine 54 is shifted rearward and also shifted upward, thereby minimizing interference between the electric motor 15 and the magazine 54 and reducing the size of the work machine 10. In this case, the supply mechanism 19 including the magazine 54 is also shifted upward. This shortens the distance L1 (see FIG. 12 ) from the center of the pinwheel 46 (motor axis AX2) to the lower end (injection port 32a) of the injection unit 32, allowing the height of the work machine 10 to be reduced. As a result, the work machine 10 can be made smaller.

[0086] Furthermore, since the working machine 10 can be made smaller, deterioration in the operability and workability of the working machine 10 can be suppressed, and the convenience of the working machine 10 can be improved.

[0087] When using a nail gun, if the worker attempts to drive nails in a narrow space in the vertical direction, the worker's head may hit a wall, etc. Therefore, reducing the height of the work machine 10 and making the work machine 10 smaller, as in the work machine 10 of the second embodiment, is also effective in making it easier for the worker to drive nails.

[0088] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. In other words, other embodiments that are conceivable within the scope of the technical idea of ​​the present invention are also included within the scope of the present invention.

[0089] 10...working machine, 11...housing, 12...impact mechanism, 13...nose portion, 14...power supply portion, 15...electric motor (motor), 15a...rotating shaft, 16...gear case, 17...conversion mechanism (winding portion), 18...pressure accumulator vessel, 19...supply mechanism, 20...cylinder case, 21...handle, 22...motor case, 22a...recess, 22b...wall surface, 22c...imaginary circle, 23...battery mounting portion, 24...cap, 26...head cover, 27...pressure chamber (energizing portion), 28...cylinder der, 28a...exhaust port, 29...piston (striking portion), 30...driver blade (striking portion), 31...bumper support portion, 32...injection portion, 32a...injection port, 33...tubular portion, 34...guide hole, 35...bumper, 36...guide hole, 37...injection path, 38, 38a, 38b...air passage, 39...connecting portion, 40...blade guide, 41...nail guide, 42...nail stopper, 43...space portion, 45...drive shaft, 46...pinwheel, 47...rack, 48...pinion Pin, 51...Trigger, 54...Magazine, 55...Solenoid cover (cover part), 55a...Exhaust port, 56...Fan, 57a, 57b...Air passage, 59...Spring, 60...Solenoid, 60a...Solenoid output shaft, 61...Iron core, 62...Feeder part, 63...Drum part, 63a...Bottom surface, 63b...Side surface, 63c...Rotating shaft, 63d...Top surface, 64...Magazine cover, 64a...Top surface, 64b...Side surface, 65...Connecting mechanism, 72...Push lever, AR1...First 1 direction (up and down), AR2...2nd direction (front and back), AR3...3rd direction (left and right), AR4...4th direction, AR5...projection direction, X1...1st center line, AX1...axis, AX2...rotation axis, AX3...center axis, AX4...impact axis, AX5...axis, AX6...rotation axis, AX7...supply axis, AX8...winding axis, D1, D2...outside diameter, G1...overlap, J1...connecting nail, K1...loading direction, L1...distance, N...nail (fastener), P1...intake, P2...exhaust, Q1...air

Claims

1. A magazine that accommodates a plurality of fasteners therein; an injection section to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in a first direction; a biasing portion that biases the striking portion toward one side in the first direction; a winding portion that winds up the striking portion toward the other side in the first direction against the biasing force of the biasing portion; a motor that generates a driving force for driving the hoisting portion, The motor has a motor axis that is a rotation axis extending in a direction intersecting the first direction, The magazine is provided at a position overlapping with the motor when viewed in the axial direction of the motor.

2. The working machine according to claim 1, A work machine, wherein the magazine is disposed on the motor axis.

3. The working machine according to claim 1, a feeder section that delivers the fastener from the magazine to the injection section along a supply axis; The work machine, wherein the supply axis is inclined with respect to the motor axis when viewed in the first direction.

4. In the working machine according to claim 3, A cylinder that movably accommodates the impact portion; a solenoid for driving the feeder unit; A working machine comprising an air passage that sends air exhausted from an exhaust port of the cylinder by movement of the striking part toward the solenoid.

5. In the working machine according to claim 4, A cover portion that houses the solenoid is provided. The air passage is formed within the cover portion.

6. In the working machine according to claim 4, a fan that is rotated by the driving force of the motor; The solenoid is provided on an air passage of the fan.

7. The working machine according to claim 1, A handle is provided for being held by an operator. A handle axis extends in a direction intersecting with the first direction, A work machine, wherein when viewed in the first direction, the handle axis is inclined with respect to the motor axis.

8. The working machine according to claim 1, The magazine includes a drum portion having a substantially cylindrical shape, the drum portion being disposed on the motor axis.

9. In the work machine according to claim 8, If a direction intersecting the first direction is a second direction, A work machine, wherein the one end of the drum portion in the second direction is disposed on the other side in the second direction relative to the motor.

10. In the work machine according to claim 8, If a direction intersecting the first direction is a second direction, The drum portion is disposed on the opposite side of the motor from the injection portion in the second direction.

11. In the work machine according to claim 7, A work machine, wherein when viewed in a second direction along the handle axis, a magazine axis that is the axis of the magazine is inclined with respect to the impact axis of the impact portion that extends in the first direction.

12. The work machine according to claim 11, the magazine is disposed on one side of the first direction with respect to the handle and the motor, and the magazine axis is inclined toward the motor axis on the other side of the first direction; A work machine, wherein the motor is disposed on one side of the handle in a third direction intersecting the first direction and the second direction, and the motor axis is inclined toward the handle axis on one side of the second direction.

13. The work machine according to claim 12, a battery attachment portion disposed at an end portion of the handle on the other side in the second direction and configured to detachably attach a battery; A work machine, wherein when viewed in the first direction, a central axis of the battery mounting portion is shifted to one side in the third direction with respect to an axis of the handle.

14. In the work machine according to claim 13, A work machine, wherein a central axis of the battery mounting portion is parallel to an axis of the handle.

15. The working machine according to claim 1, A battery mounting portion for detachably mounting a battery is further provided, A work machine, wherein a central axis of the battery mounting portion is parallel to an axis of the motor.

16. A working machine according to any one of claims 1 to 13, The motor case further includes a motor case that accommodates the motor. The magazine has a storage section that stores the fastener and a magazine cover that covers a part of the storage section, The motor case is provided with a recess for avoiding interference with the magazine cover.

17. A working machine according to any one of claims 1 to 13, The motor case further includes a motor case that accommodates the motor. The magazine has a storage section that stores the fastener and a magazine cover that covers a part of the storage section, The magazine cover is provided with a recess for avoiding interference with the motor case.

18. a magazine having a substantially cylindrical drum portion and accommodating a plurality of fasteners wound in a spiral shape therein; an injection section to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in a first direction; a biasing portion that biases the striking portion to one side in the first direction; a winding portion that winds up the striking portion toward the other side in the first direction against the biasing force of the biasing portion; A motor that generates a driving force for driving the hoisting portion; A handle that is gripped by an operator; a motor case that houses the motor; a feeder section that supplies the fasteners from the magazine to the ejection section along a supply axis; A solenoid for driving the feeder unit, The motor has a motor axis that is a rotation axis extending in a direction intersecting the first direction, the drum portion is disposed at a position overlapping with the motor case as viewed in the motor axial direction, the solenoid is disposed on one side of the motor case in the first direction, A work machine, wherein the motor case and the solenoid overlap when viewed in the first direction.

19. A magazine having a drum portion of a substantially cylindrical shape and accommodating a plurality of fasteners wound in a spiral shape therein; an injection section to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in a first direction; a biasing portion that biases the striking portion toward one side in the first direction; a winding portion that winds up the striking portion toward the other side in the first direction against the biasing force of the biasing portion; A motor that generates a driving force for driving the hoisting portion; A handle that is gripped by an operator; The handle extends along a second direction intersecting the first direction, the magazine is provided at a position overlapping with the motor when viewed in a direction of a rotation axis of the motor, A work machine, wherein a magazine axis, which is the axis of the drum portion, is inclined with respect to an impact axis of the impact portion extending in the first direction when viewed in the second direction.

20. A magazine having a drum portion of a substantially cylindrical shape and accommodating a plurality of fasteners wound in a spiral shape therein; an injection section to which the fastener is supplied; a striking portion that strikes the fastener supplied to the ejection portion by moving to one side in a first direction; a biasing portion that biases the striking portion toward one side in the first direction; a winding portion that winds up the striking portion toward the other side in the first direction against the biasing force of the biasing portion; A motor that generates a driving force for driving the hoisting portion; a handle disposed on the other side of the motor in the first direction and extending along a second direction intersecting the first direction; a feeder unit that delivers the fastener from the magazine to the injection unit along a supply axis, The motor has a motor axis that is a rotation axis extending in a direction intersecting the first direction, The handle extends in a direction in which a handle axis intersects with the first direction, the handle axis is inclined toward the other side in the first direction with respect to the motor axis as the handle axis is inclined toward the one side in the second direction, The supply axis inclines toward the one side in the first direction with respect to the motor axis as the supply axis approaches the one side in the second direction.

21. In the work machine according to claim 18, A cover portion that houses the solenoid is provided. A work machine, wherein an interior of the cover portion and an interior of the motor case are connected to each other.

22. In the work machine according to claim 18, The drum portion overlaps with the solenoid when viewed in the supply axis direction.

23. In the work machine according to claim 18, The motor case is disposed between the solenoid and the handle.