Magazine and work equipment

Abstract

To improve the convenience of magazines and work implements. [Solution] A magazine 12 is attached to a work machine having an ejection unit that supports nails 3 and a striking unit that strikes the nails 3 supported by the ejection unit, and supplies nails 3 to the ejection unit. The magazine 12 is elongated in shape and made of resin, and has a first magazine cover 43 that defines a nail storage chamber 43a, and a metal nail plate 44 that is integrally formed with the first magazine cover 43 so as to face the storage chamber 43a and guides the movement of nails 3 within the storage chamber 43a.

Description

Technical Field

[0001] The present invention relates to a magazine capable of accommodating a plurality of fasteners and a working machine.

Background Art

[0002] As an example of a working machine equipped with a magazine, a driving machine is known that includes an injection part, a magazine that supplies a fastener to the injection part, and a striking part that strikes the fastener disposed in the injection part.

[0003] For example, Patent Document 1 discloses a driving machine that fixes a fitting to a mating member by driving a fastener through a hole provided in the fitting placed on the mating member.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the working machine (driving machine) described in Patent Document 1 above, when driving, in order to aim at the hole of the fitting, a probe protruding from the injection part is provided, and the fastener is driven after inserting this probe into the hole of the fitting.

[0006] Note that the fastener is supplied from the magazine to the injection part. At that time, a plurality of fasteners are accommodated side by side in the magazine. Therefore, the magazine has an elongated shape.

[0007] On the other hand, from the viewpoint of weight reduction of the working machine, the magazine is made of resin. Therefore, the magazine often undergoes deformation due to warping during resin molding. As a result, there has been a concern that it may have an adverse effect on the assemblability of the magazine and the nail feeding, and the convenience of the working machine may be reduced.

[0008] The objective of this invention is to provide a magazine and work machine with improved convenience. [Means for solving the problem]

[0009] A magazine according to one embodiment is attached to a work machine having an injection section for supporting a fastener and an impact section for striking the fastener supported by the injection section, and is used to supply the fastener to the injection section. The magazine is elongated in shape and made of resin, and has a cover member that defines a storage chamber for the fastener, and a metal guide section that is formed integrally with the cover member so as to face the storage chamber and guides the movement of the fastener within the storage chamber.

[0010] A work machine according to one embodiment includes a striking section that strikes a fastener to one side in a first direction, an injection section that supports the fastener so as to be strikeable by the striking section and forms an injection path through which the struck fastener passes, and a magazine that supplies the fastener to the injection section, wherein the magazine is elongated in shape and made of resin, and includes a cover member that defines a storage chamber for the fastener, and a metal guide section that is integrally formed with the cover member so as to face the storage chamber and guides the movement of the fastener within the storage chamber. [Effects of the Invention]

[0011] According to the present invention, the convenience of magazines and work implements can be improved. [Brief explanation of the drawing]

[0012] [Figure 1] This is a left side view showing the structure of a work machine according to an embodiment of the present invention. [Figure 2] Figure 1 is a bottom view showing the structure of the work machine. [Figure 3] Figure 1 is a right-side view showing the structure of the work machine. [Figure 4] This is a cross-sectional view showing the structure cut along line AA in Figure 2. [Figure 5]It is a cross-sectional view showing the structure cut along the B-B line in FIG. 2. [Figure 6] It is a bottom view showing the irradiation area of the LED as seen from the lower surface side of the working machine in FIG. 1. [Figure 7] It is a partially enlarged bottom view showing the shape of the ejection port as seen from the lower surface side of the working machine in FIG. 1. [Figure 8] It is a perspective view showing the positional relationship between the probe and the LED as seen from the front side of the working machine in FIG. 1. [Figure 9] It is a perspective view showing the positional relationship between the probe and the LED as seen from the lower surface side of the working machine in FIG. 1. [Figure 10] It is a plan view showing the structure of the working machine shown in FIG. 1. [Figure 11] It is a cross-sectional view showing the inside of the mock case and the shape of the ejection port of the working machine in FIG. 1. [Figure 12] It is a side view showing the structure of the working machine shown in FIG. 1. [Figure 13] It is a cross-sectional view showing the structure cut along the A-A line in FIG. 12. [Figure 14] It is a developed view of the magazine structure shown in FIG. 13. [Figure 15] It is a cross-sectional view of the magazine structure shown in FIG. 13. [Figure 16] It is a plan view showing the structure of the cover member in the magazine of the working machine in FIG. 1. [Figure 17] It is a plan view showing the structure of the guide part in the magazine of the working machine in FIG. 1. [Figure 18] It is a cross-sectional view showing the structure cut along the A-A line in FIG. 17. [Figure 19] It is a cross-sectional view showing the structure cut along the B-B line in FIG. 17. [Figure 20] It is a plan view showing the structure inside the mold after resin molding of the cover member shown in FIG. 16. [Figure 21] It is a cross-sectional view showing the structure cut along the A-A line in FIG. 20. [Figure 22] It is a cross-sectional view showing the structure cut along the B-B line in FIG. 20. [Figure 23]Figure 1 is a plan view showing the structure of the magazine of the work machine. [Figure 24] This is a cross-sectional view showing the structure cut along line AA in Figure 23. [Figure 25] This is a cross-sectional view showing the structure cut along line BB in Figure 23. [Figure 26] This is a cross-sectional view showing the structure cut along the CC line in Figure 23. [Modes for carrying out the invention]

[0013] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The work machine shown in Figures 1 to 6 is a driving machine suitable for driving fasteners such as nails into mating materials such as boards and gypsum boards. In this embodiment, driving machine 1 will be taken up as an example of a work machine, and nail 3 (see Figure 15) will be taken up as an example of a fastener and described. Furthermore, in this embodiment, driving machine 1 used for fastening metal fittings will be taken up as an example of driving machine 1 and described.

[0014] As shown in Figures 1 to 3, the driving machine 1 has a cylinder case 2, a motor case 4, and a handle 6. One end of the motor case 4 and the handle 6 is connected to the cylinder case 2, and the other end of the motor case 4 and the handle 6 is connected to the connecting part 8. In other words, one end of the motor case 4 and the handle 6 are connected to each other via the cylinder case 2, and the other end of the motor case 4 and the handle 6 are connected to each other via the connecting part 8. That is, the cylinder case 2, the motor case 4, the handle 6, and the connecting part 8 are an integrated unit. Therefore, in the following description, the cylinder case 2, the motor case 4, the handle 6, and the connecting part 8 may be collectively referred to as the "housing 10".

[0015] The housing 10 is composed of two housing members made of synthetic resin such as nylon or polycarbonate. Specifically, the housing 10, which includes the cylinder case 2, motor case 4, handle 6, and connecting part 8, is formed by two housing members that are butted against each other.

[0016] Here, the longitudinal direction of the cylinder case 2 is defined as the "up-down direction (first direction)," and the longitudinal direction of the motor case 4 is defined as the "front-back direction (second direction)." Furthermore, the direction perpendicular to the up-down and front-back directions is defined as the "left-right direction." However, these definitions are merely for the sake of explanation.

[0017] According to the above definition, the motor case 4 is located below the handle 6 and extends rearward from the cylinder case 2. On the other hand, the handle 6 is located above the motor case 4 and extends diagonally upward from the cylinder case 2 towards the rear.

[0018] As shown in Figure 4, the cylinder case 2 houses the cylinder 20. Furthermore, as shown in Figure 5, the cylinder 20 houses the piston 21. The piston 21 housed in the cylinder 20 reciprocates within the cylinder 20 in the axial direction (up and down direction). Inside the cylinder 20, the inner surface of the cylinder 20 and the upper surface of the piston 21 form the piston upper chamber 22. The volume of the piston upper chamber 22 increases or decreases with the reciprocating motion (up and down movement) of the piston 21. Specifically, the volume of the piston upper chamber 22 is minimum when the piston 21 is at top dead center and maximum when the piston 21 is at bottom dead center.

[0019] A driver blade 23 is connected to the lower surface of the piston 21. The driver blade 23 is integrated with the piston 21 and reciprocates (moves up and down) together with the piston 21. The driver blade 23 moves downward and collides with the nail 3 (see Figure 15), striking the nail 3. In other words, the driver blade 23 is a component that strikes the nail 3 downward (one side) in the vertical direction (first direction), and corresponds to the striking part 5 of the present invention. Furthermore, the downward (one side) in the vertical direction (first direction) in this embodiment coincides with the direction in which the driver blade 23 strikes the nail 3.

[0020] A damper 24 made of rubber or urethane is provided at the bottom of the cylinder 20. The damper 24 receives the piston 21 when it reaches bottom dead center and prevents a collision between the piston 21 and the nose 27 located below the cylinder 20. A driver blade 23 extending downward from the piston 21 passes through the damper 24 and the cylinder 20 and protrudes downward from the cylinder 20.

[0021] In this embodiment, the piston 21 and driver blade 23, which are molded separately, are connected and integrated; however, the piston 21 and driver blade 23 may be molded as a single unit.

[0022] As shown in Figures 1 to 3, a magazine 12 is attached to the side of the housing 10. Meanwhile, below the cylinder case 2, an injection passage 31 is provided as shown in Figure 2. The magazine 12 is capable of holding multiple nails 3 and is equipped with a supply mechanism such as a feeder 33 (see Figure 13) that supplies the multiple nails 3 contained within to the injection passage 31 one by one.

[0023] The injection passage 31 shown in Figure 6 is formed by a plurality of members (injection passage forming members), including a first blade guide 30 that extends downward from the cylinder case 2 shown in Figure 4. In addition to the first blade guide 30, the injection passage forming members include a second blade guide 39 provided on the magazine 12 and paired with the first blade guide 30, and a nose 27 positioned above the first blade guide 30 and the second blade guide 39. As shown in Figure 1, the first blade guide 30 holds the front side of the injection passage 31, i.e., around the push lever 29. On the other hand, the second blade guide 39 holds the rear side of the injection passage 31, i.e., the nail support (auxiliary projection) 36 and the magazine 12, which will be described later.

[0024] The driver blade 23 shown in Figure 5 strikes the nail 3 that has been fed into the injection passage 31, which is formed by an injection passage forming member including a first blade guide 30. More specifically, the driver blade 23 strikes the head 3a (see Figure 15) of the nail 3 that has been fed into the injection passage 31. The nail 3 struck by the driver blade 23 passes through the injection passage 31 and is ejected from the injection passage 31. The first blade guide 30 and the second blade guide 39, which are members that form the injection passage 31, correspond to the injection unit 34 of the present invention. In other words, the injection unit 34 supports the nail 3 so that it can be struck by the striking unit 5 and forms the injection passage 31 through which the struck nail 3 passes. To put it another way, the striking unit 5 strikes the nail 3 that is supported by the injection unit 34. The magazine 12 supplies the nails 3 contained in the magazine 12 to the injection unit 34.

[0025] Furthermore, a pinwheel (winding section) 25 is provided to move the piston 21 from the bottom dead center side towards the top dead center side. As shown in Figure 4, the pinwheel 25 is fixed to a drive shaft 14 which is rotationally driven by a motor 13. The pinwheel 25 has a plurality of pins 25a provided at predetermined intervals along the circumferential direction (direction of rotation). On the other hand, the driver blade 23 has a plurality of racks provided at predetermined intervals along the axial direction (vertical direction).

[0026] The rotational driving force output from the motor 13 housed in the motor case 4 is transmitted to the drive shaft 14 to which the pinwheel 25 is attached via a planetary gear type reduction mechanism 15. The motor 13 is an electric brushless motor powered by electricity supplied from a battery 16 mounted on the rear of the housing 10 (the back of the connecting section 8). The connecting section 8 has a built-in controller 17 as the control unit. The controller 17 is a microcomputer composed of a CPU, ROM, RAM, etc., which controls the start / stop, rotation amount, rotation speed, etc. of the motor 13 according to predetermined conditions. The controller 17 is electrically connected to the motor 13 via wiring 18.

[0027] As shown in Figure 5, a chamber 26a forming a pressure accumulator 26 is provided above the cylinder 20. The pressure accumulator 26 is in communication with the piston upper chamber 22. In this embodiment, the diameter of the chamber 26a is larger than the diameter of the cylinder 20. In this embodiment, where the chamber 26a has a larger diameter than the cylinder 20, the required volume of the pressure accumulator 26 is secured while keeping the overall height of the driving machine 1, including the cylinder 20 and the chamber 26a, low.

[0028] The piston upper chamber 22 and the pressure accumulator chamber 26 are filled with high-pressure gas (compressed air in this embodiment). When the piston 21 is moved from the bottom dead center side to the top dead center side (when the piston 21 is raised), the motor 13 rotates forward under the control of the controller 17. When the motor 13 rotates forward, the pinwheel 25 rotates in a predetermined direction.

[0029] As the pinwheel 25 begins to rotate, the multiple pins 25a on the pinwheel 25 sequentially engage with the multiple racks on the driver blade 23. Subsequently, as the pinwheel 25 rotates until the pin 25a furthest downstream in the rotational direction engages with the lowest rack in the vertical direction, the piston 21 is pushed up to top dead center.

[0030] As the piston 21 is pushed up as described above, the compressed air in the piston upper chamber 22 is sent to the pressure accumulator chamber 26 and further compressed. Subsequently, as the pin wheel 25 rotates further, the engagement between the pin 25a on the pin wheel 25 and the rack on the driver blade 23 is released. Then, the pressure of the compressed air (air pressure) in the piston upper chamber 22 and the pressure accumulator chamber 26 causes the piston 21 to move from top dead center to bottom dead center, and the driver blade 23 to move downward. In other words, the piston 21 and the driver blade 23 descend.

[0031] As shown in Figure 4, a push lever 29 that can move in the vertical direction is provided at the tip of the injection unit 34. Furthermore, a probe (projection) 37 is provided at the tip of the injection unit 34 as part of the push lever 29. Specifically, the probe 37 protrudes downward in the vertical direction relative to the injection unit 34 and contacts the nail 3 as it passes through the injection passage 31 to guide the nail 3.

[0032] Furthermore, a nail support (auxiliary projection) 36 is provided at a position opposite the probe 37, and as shown in Figure 6, the probe 37 and the nail support 36 form the injection passage 31. Specifically, the probe 37 is positioned on one side (front side) of the injection passage 31. On the other side (rear side) of the injection passage 31, the nail support 36 is positioned. In other words, the probe 37 and the nail support 36 face each other across the injection passage 31. As a result, the nail 3 passing through the injection passage 31 is guided by being sandwiched between the probe 37 and the nail support 36 from the front and back.

[0033] The nail 3, struck by the driver blade 23, is ejected between the probe 37 and the nail support 36. At this point, the nail 3 contacts and is guided by the probe 37 and the nail support 36. Typically, the nail 3 contacts the probe 37 after contacting the nail support 36.

[0034] In this embodiment, the metal fitting is fixed to the mating material 110 by nails 3, as shown in Figure 1. Specifically, the nails 3 are driven into the mating material 110 through the holes 101 provided in the metal fitting 100 to fix the metal fitting 100 to the mating material 110.

[0035] Therefore, when driving the nail 3 into the mating material 110, first, the tip of the probe 37 is inserted into the hole 101 of the metal fitting 100, and the nail 3 is guided through the hole 101 by the probe 37 and then the nail support 36, and driven into the mating material 110. In this way, by inserting the tip of the probe 37 into the hole 101 of the metal fitting 100 before driving in the nail 3, the aim of where the nail 3 will be driven in can be determined. As the nail 3 enters the hole 101, the probe 37 is pushed upward by the nail 3, and retracts above the metal fitting 100 and returns to its original position. Once the nailing is complete, the nail support 36 and the probe 37 return to their original positions.

[0036] Furthermore, there are times when metal fastening work is performed in dimly lit places. In such cases, it becomes difficult to aim where to drive the nail 3. Therefore, the nail driving machine 1 of this embodiment is equipped with an illumination unit that irradiates light onto a probe 37 provided at the tip of the nail driving machine 1. In this embodiment, an LED 40 is used as an example of the illumination unit, but the illumination unit is not limited to the LED 40. As shown in Figure 4, the LED 40 is electrically connected to the controller 17 via wiring 19.

[0037] Furthermore, the LED 40 is located on the outside of the connecting portion 8, which is situated on the rear side in the front-rear direction of the motor case 4, and is positioned to protrude downward in the vertical direction from the housing 10. The injection portion 34 is positioned so that no components of the injection portion 34 lie on the imaginary line P1 connecting the lower end 37a of the probe 37 and the LED 40. In other words, the injection portion 34 is positioned so that the imaginary line P1 connecting the lower end 37a of the probe 37 and the LED 40 does not intersect with any components of the injection portion 34. That is, no components or parts thereof of the injection portion 34 lie on the imaginary line P1 connecting the lower end 37a of the probe 37 and the LED 40. As a result, the light 40a that the LED 40 shines towards the probe 37 is not obstructed, and the lower end 37a of the probe 37 can be illuminated. The light 40a emitted by the LED 40 can illuminate the region U1, including the area near the tip of the probe 37, as shown in Figures 4 to 6.

[0038] Here, we will describe the specific positional relationship between the probe 37 and the LED 40, the shape of the probe 37, the support configuration of the nail support 36, and the positional relationship between the LED 40 and the magazine 12. The probe 37 is located on the front (one side) of the injection passage 31 in the front-to-back direction perpendicular to the vertical direction, and the LED 40 is located on the rear (other side) of the injection passage 31 in the front-to-back direction. In other words, the probe 37 is positioned in front of the injection passage 31, and the LED 40 is positioned behind the injection passage 31. Furthermore, as shown in Figures 7 and 9, the probe 37 has a recess 37c on its rear surface 37b in the front-to-back direction that is recessed away from the injection passage 31. In detail, the probe 37 has a semicircular recess 37c, and by guiding the nail 3 with this recess 37c, the injection accuracy of the nail 3 can be improved. At that time, the LED 40 irradiates light toward the area around the recess 37c of the probe 37.

[0039] Furthermore, a nail support (auxiliary projection) 36 is provided at a position opposite the probe 37. The nail support 36 contacts the nail 3 as it passes through the injection passage 31 to guide the nail 3. The nail support 36 is located on the rear side in the front-rear direction relative to the injection passage 31, and as shown in Figure 1, the LED 40 is also located on the rear side in the front-rear direction relative to the nail support 36. In other words, the LED 40 is located at a distance from the nail support 36 and at a distance from the injection passage 31, and as shown in Figure 8, it illuminates the probe 37 from a distance at the rear. If the LED 40 is placed close to the injection passage 31, the surrounding materials of the injection passage 31 will obstruct the illumination of the LED 40 and cast a shadow on the nailing site. Therefore, it is preferable that the LED 40 is located at a distance from the injection passage 31 on the rear side.

[0040] Furthermore, as shown in Figure 5, the nail support 36 is positioned above (on the other side of) the probe 37 in the vertical direction. This allows the LED 40 to illuminate the probe 37 with light 40a without being obstructed by the nail support 36. In other words, because the nail support 36, which is positioned between the probe 37 and the LED 40 in the front-to-back direction, is positioned above the probe 37, the LED 40 can illuminate the probe 37 with light 40a without being obstructed by the nail support 36.

[0041] In other words, the nail support 36 is positioned so as not to interfere with the area between the LED 40 and the tip of the probe 37. Therefore, the nail support 36 does not obstruct the LED 40 when it illuminates the probe 37. As a result, the light 40a emitted from the LED 40 can directly illuminate the area near the tip of the probe 37.

[0042] Furthermore, the nail driving machine 1 is provided with a spring (biasing member) 38 that biases the nail support 36 to contact the nail 3. This spring 38 is located above the nail support 36 in the vertical direction. The nail support 36 has an elongated, bent shape, with a shaft 36a provided in its center, and is rotatable around the shaft 36a.

[0043] Specifically, the rear end of the nail support 36 is biased downward by a spring 38 located above the nail support 36. As a result, the nail support 36 is constantly pressed toward the injection passage 31 so that it can rotate around the shaft 36a. When the nail 3 is ejected from the injection section 34 through the injection passage 31, it is brought into contact with the nail support 36. In other words, the nail support 36 is supported so that its front end is pressed toward the injection passage 31, thereby guiding the nail 3 as it passes through the injection section 34.

[0044] As described above, the spring 38 that biases the rear end of the nail support 36 is positioned above the nail support 36, so that the entire bottom surface of the nail support 36 is exposed to the outside. This allows the nail support 36 to be positioned recessed upwards without protruding. As a result, the nail support 36 can be positioned above the probe 37. Therefore, when attempting to illuminate the area around the probe 37 from the LED 40, there is nothing to obstruct the light 40a in between, so the light 40a emitted from the LED 40 can directly illuminate the area around the probe 37.

[0045] Furthermore, the nail driving machine 1 has a magazine 12 that extends from the injection unit 34 in an intersecting direction Q1 that intersects with the vertical direction and is capable of accommodating multiple nails 3. The intersecting direction Q1 is the direction in which the magazine 12 extends, intersecting with the vertical direction. Note that the intersecting direction Q1 is also the direction in which the front-back direction and the left-right direction intersect, as shown in Figure 10. In other words, the nail driving machine 1 has a magazine 12 that extends in an intersecting direction Q1 that intersects with the vertical, front-back, and left-right directions. As shown in Figure 6, the motor case 4 and the magazine 12 extend in directions that intersect with each other. Also, since the LED 40 is located on the center line of the two-part housing 10 (motor case 4), the LED 40 and the magazine 12 are arranged side by side in the left-right direction. In other words, the LED 40 and the magazine 12 are arranged offset from each other in the left-right direction. This ensures that the magazine 12 does not obstruct the LED 40 when it illuminates the probe 37. Therefore, the light 40a emitted from the LED 40 can directly illuminate the area near the tip of the probe 37.

[0046] Furthermore, as shown in Figure 11, the LED 40 protrudes downward in the vertical direction from the lower (one side) ridge 12a of the magazine 12. In other words, the LED 40 is positioned to protrude even further downward than the lower ridge 12a of the magazine 12.

[0047] Here, the detailed structure of the part in the injection machine 1 that supports the LED 40 will be described. The injection machine 1 has a housing 10 that supports the striking section 5 and the LED 40. The LED 40 is attached to the motor case (motor housing section) 4 of the housing 10, which houses the motor 13. In detail, the housing 10 has a motor case 4 that houses the motor 13, which extends from the injection section 34 in the front-rear direction perpendicular to the vertical direction. The LED 40 is provided in the motor case 4 so as to be located behind the motor 13 in the front-rear direction. That is, the LED 40 is provided in the motor case 4 so as to be located behind the motor 13 and is supported by a part of the housing 10 that protrudes downwards and is located behind the motor 13.

[0048] As a result, the LED 40 emits light 40a from a part of the housing 10 that protrudes downwards away from the probe 37, so that shadows caused by obstacles are less likely to form and the area around the tip of the probe 37 can be brightly illuminated.

[0049] Furthermore, the portion of the housing 10 that protrudes downward is provided with a parallel wall 10a extending parallel to the ridge line 12a of the magazine 12, and a protruding holding portion 10b that protrudes downward in the vertical direction from the parallel wall 10a to hold the LED 40. In other words, the portion of the housing 10 that protrudes downward, located behind the motor 13, has a protruding holding portion 10b, and the LED 40 is held by the protruding holding portion 10b. This protruding holding portion 10b has an outer wall 10c (see Figure 8) that constitutes the outer shell of the housing 10, and a hole 10d provided in the outer wall 10c that exposes the LED 40 to the outside of the housing 10. The hole 10d opens in a direction parallel to the ridge line 12a of the magazine 12. That is, because the hole 10d that exposes the LED 40 to the outside of the housing 10 opens in a direction along the ridge line 12a of the magazine 12, the LED 40 can be illuminated at an angle toward the probe 37.

[0050] In this embodiment of the driving machine 1, the mounting of the LED 40 on the housing 10 allows the area around the tip of the probe 37 to be illuminated by the light 40a of the LED 40. This makes it easier to aim the probe 37 even in dimly lit working environments. For example, as shown in Figure 1, even when fixing a metal fitting 100 to a mating material 110 in dimly lit conditions, the area around the tip of the probe 37 and the area around the hole 101 of the metal fitting 100 can be illuminated by the LED 40. This makes it easier to aim the probe 37 and insert the probe 37 into the hole 101. As a result, the convenience of the driving machine 1 can be improved.

[0051] Furthermore, because the LED 40 is positioned to protrude from the lower side of the magazine 12, the light 40a emitted from the LED 40 is no longer obstructed by the components constituting the injection unit 34, allowing the light 40a from the LED 40 to directly illuminate the area near the tip of the probe 37. This further improves the convenience of the driving machine 1 and enhances its visibility.

[0052] Next, the features of the magazine 12 provided in the nail driving machine 1 of this embodiment will be described. The magazine 12 provided in the nail driving machine 1 is capable of accommodating multiple nails 3 to be driven in, and its main material is resin. That is, the magazine 12 is made of resin. As shown in Figure 12, the magazine 12 has an elongated shape extending in the intersecting direction Q1. The intersecting direction Q1 is the same direction as the longitudinal direction R1 (see Figure 16) of the elongated magazine 12. Therefore, the magazine 12 also has an elongated shape extending in the longitudinal direction R1.

[0053] Furthermore, as shown in Figure 13, the magazine 12 has an elongated first magazine cover (cover member) 43 that defines a nail storage chamber 43a for the nails 3, and a metal nail plate (guide part) 44 that is integrally formed with the first magazine cover 43 so as to face the storage chamber 43a and guides the movement of the nails 3 within the storage chamber 43a. In addition, the magazine 12 is provided with a second magazine cover (base member) 42 that defines the storage chamber 43a between itself and the first magazine cover 43. That is, the nail storage chamber 43a of the magazine 12 is defined by the first magazine cover 43 and the second magazine cover 42. The first magazine cover 43 and the second magazine cover 42 are each made of resin.

[0054] Furthermore, the first magazine cover 43 and the second magazine cover 42 are held together by a clamping plate (clamping member) 45, which is provided to sandwich the first magazine cover 43 and the second magazine cover 42 in the thickness direction T1 of the magazine 12.

[0055] The first magazine cover 43 is a resin molded product. When the first magazine cover 43 is resin molded, the nail plate 44 is placed in the mold 50 (see Figure 21) beforehand and is placed inside the first magazine cover 43 along with the resin molding of the first magazine cover 43. For example, the nail plate 44 is a press-formed product. In other words, the resin molding of the first magazine cover 43 is performed with the nail plate 44, which has been formed by press forming, already placed in the mold 50. As a result, the nail plate 44 is placed inside the first magazine cover 43, and the first magazine cover 43, which is integrated with the nail plate 44, is molded.

[0056] Therefore, the nail plate 44 cannot be removed from the first magazine cover 43. In other words, the nail plate 44 cannot be detached from the first magazine cover 43 without damaging it. Specifically, the nail plate 44 is a component that is placed inside the first magazine cover 43 in a state where it is already positioned in the mold 50, and then becomes integrated with the first magazine cover 43 by the resin molding of the first magazine cover 43. Therefore, the nail plate 44 is a component that cannot be detached from the first magazine cover 43 without damaging it.

[0057] The second magazine cover 42 is also a resin molded product. The second magazine cover 42 has a hole 42a, and a knob 33a, which is located on the outside of the second magazine cover 42, is attached to it through this hole 42a. The knob 33a is located on the outside of the second magazine cover 42 so as to be movable in the longitudinal direction R1, and is connected to a feeder 33 which is located on the inside of the second magazine cover 42 so as to be movable in the longitudinal direction R1. In other words, the knob 33a and the feeder 33 are assembled to be a single unit. The knob 33a and the feeder 33 are a supply mechanism for supplying nails 3 one by one to the injection passage 31 (see Figure 7).

[0058] Here, the detailed shape of the first magazine cover 43 will be described. As shown in Figure 16, the planar shape of the first magazine cover 43 is approximately rhombic. As shown in Figures 13 and 16, the length of the first magazine cover 43 is shorter in the width direction S1 and the thickness direction T1 perpendicular to the longitudinal direction R1 than in the length of its longitudinal direction R1. Furthermore, the length of the thickness direction T1 perpendicular to the longitudinal direction R1 is shorter in the thickness direction T1 perpendicular to the longitudinal direction R1 than in the width direction S1 perpendicular to the longitudinal direction R1. In other words, the length of the width direction S1 and the thickness direction T1 of the first magazine cover 43 is shorter than the length of the longitudinal direction R1, and the length of the thickness direction T1 is shorter than the length of the width direction S1. In other words, of the elongated rhombus shape of the first magazine cover 43, the longest dimension is the length of the longitudinal direction R1, and the shortest dimension is the length of the thickness direction T1 (length of longitudinal direction R1 > length of width direction S1 > length of thickness direction T1).

[0059] Furthermore, as shown in Figures 13 to 15, the first magazine cover 43 has protrusions 43h as fitting parts at both ends in the width direction S1. On the other hand, the second magazine cover 42 also has recesses 42b as fitting parts at both ends in the width direction S1. As a result, when fitting the first magazine cover 43 and the second magazine cover 42, the protrusions 43h and recesses 42b, which are fitting parts, are fitted together at both ends in the width direction S1 of each, thereby allowing the first magazine cover 43 and the second magazine cover 42 to be fitted together. At that time, the strength of the fit between the first magazine cover 43 and the second magazine cover 42 can be increased by sandwiching the outside of the fitting parts of the first magazine cover 43 and the second magazine cover 42 at the bottom with a C-shaped clamping plate 45.

[0060] As shown in Figure 14, with respect to the second magazine cover 42, before fitting it with the first magazine cover 43, the feeder 33 and the knob 33a are connected via the hole 42a to integrate the feeder 33 and the knob 33a, and then the first magazine cover 43 and the second magazine cover 42 are fitted together.

[0061] As shown in Figure 15, when the first magazine cover 43 and the second magazine cover 42 are fitted together, a storage chamber 43a capable of accommodating the nail 3 is defined. Specifically, the second magazine cover 42 is attached adjacent to the first magazine cover 43 in the thickness direction T1, thereby defining the storage chamber 43a between the first magazine cover 43 and the second magazine cover 42. Also, when the first magazine cover 43 and the second magazine cover 42 are fitted together, the feeder 33 is positioned so that a portion of it enters the storage chamber 43a. In other words, the feeder 33 is positioned in the storage chamber 43a because a portion of it needs to push the nail 3. After the first magazine cover 43 and the second magazine cover 42 are fitted together, the outside of the fitting portion of the first magazine cover 43 and the second magazine cover 42 is clamped with a C-shaped clamping plate 45 to prevent the fitting of the first magazine cover 43 and the second magazine cover 42 from easily coming apart. This completes the assembly of the magazine 12.

[0062] Next, the detailed shape of the nail plate 44 will be described. As shown in Figures 16 to 19, the nail plate 44 is a component that is placed in the mold 50 in advance when the first magazine cover 43 is resin molded. Therefore, the nail plate 44 needs to be processed into the desired shape before being placed in the mold 50 for resin molding of the first magazine cover 43. For example, as shown in Figures 17 to 19, the nail plate 44 is a press-formed product having multiple bent portions 44c.

[0063] Furthermore, the nail plate 44 has a length in the width direction S1 and the thickness direction T1 that is shorter than the length in the longitudinal direction R1. In other words, the nail plate 44 is also shaped to match the shape of the magazine 12, with the length in the longitudinal direction R1 being longer than the lengths in the width direction S1 and the thickness direction T1. That is, the nail plate 44 is also elongated. As a result, when the magazine 12 flexes in the longitudinal direction R1, the nail plate 44 acts as a skeleton and can suppress the flexing of the magazine 12.

[0064] Furthermore, the nail plate 44 can be described in other words as a single metal plate bent to have a first plate portion 44a extending in the longitudinal direction R1 and the thickness direction T1, and a second plate portion 44b extending in the longitudinal direction R1 and the width direction S1. That is, the nail plate 44 is not a flat plate shape, but has a first plate portion 44a and a second plate portion 44b that extend in different directions due to bending by press working. In other words, the nail plate 44 has a shape that has a portion bent by press working (bent portion 44c). For example, as shown in Figures 18 and 19, the nail plate 44 has a portion formed into a U shape by bending. As a result, even if a load is applied that causes the magazine 12 to bend in the longitudinal direction R1, the nail plate 44 will brace against the longitudinal direction R1, thereby suppressing the bending of the magazine 12 in the longitudinal direction R1.

[0065] Furthermore, as shown in Figure 15, the nail plate 44 is positioned off-center (upper side) of the center of the first magazine cover 43 in its width direction S1. That is, since the nail plate 44 is a member that guides the sliding motion of the nail 3, it is positioned off-center (upper side) of the storage chamber 43a. On the upper (perforated side) of the nail plate 44, there is a U-shaped bent portion. This U-shaped bent portion of the nail plate 44 guides the head 3a of the nail 3, while the second plate portion 44b (see Figure 18), which extends in the width direction S1, guides the shank 3b of the nail 3.

[0066] Furthermore, a clamping plate 45 is attached so as to sandwich the first magazine cover 43 and the second magazine cover 42 in the thickness direction T1. The clamping plate 45 is attached to the lower (other) side of the center of the first magazine cover 43 in the width direction S1 of the magazine 12. This makes it possible to suppress warping of the lower part of the magazine 12 that is away from the nail plate 44.

[0067] The first magazine cover 43 has a main body portion 43b and a restricting portion 43c that is integrally provided with the main body portion 43b and restricts the relative movement of the nail plate 44 with respect to the first magazine cover 43. The restricting portion 43c of the first magazine cover 43 covers the lower end of the nail plate 44. The first surface of the nail plate 44 (the outer surface of the U-shape) is at least partially covered by the main body portion 43b of the first magazine cover 43 (see Figure 13), and the second surface (the inner surface of the U-shape), which is the back surface of the first surface, is covered by the restricting portion 43c of the first magazine cover 43. In other words, each of the two surfaces of the plate-shaped nail plate 44 is at least partially covered by the first magazine cover 43. This prevents the nail plate 44 from detaching from the first magazine cover 43 and also suppresses displacement of the nail plate 44, thereby allowing the nail plate 44 to be positioned correctly. It is impossible for the nail plate 44 to detach from the first magazine cover 43 without damaging the restricting portion 43c, and conversely, it is impossible to attach the nail plate 44 to a first magazine cover 43 that does not have a nail plate 44 without damaging the restricting portion 43c. In other words, because the first magazine cover 43 is formed integrally with the nail plate 44, the first magazine cover 43 can have a restricting portion 43c.

[0068] Next, the resin molding of the first magazine cover 43 will be explained using Figures 20 to 22. When resin molding the first magazine cover 43, a nail plate 44, which has been pre-bent by press processing to form the shape shown in Figure 18, is placed inside the mold 50 before resin molding. At this time, as shown in Figure 22, the nail plate 44 can be positioned relative to the mold 50 by aligning the hole 44d of the nail plate 44 with the protrusion 50a of the mold 50.

[0069] Next, the molten resin is injected into the mold 50, causing the resin to wrap around the back side of the nail plate 44 and form the first magazine cover 43. At this time, since the nail plate 44 is already positioned in the mold 50, the first magazine cover 43 and the nail plate 44 can be molded together as one piece. In other words, the nail plate 44 is insert-molded into the first magazine cover 43. After the resin injection is complete, the resin will try to shrink as it cools, but the nail plate 44 acts as a framework, which suppresses the deformation of the resin.

[0070] Furthermore, the protrusion 50a of the mold 50, in which the nail plate 44 was positioned, creates multiple holes 43d in the first magazine cover 43, as shown in Figure 16. In other words, the multiple holes 43d in the first magazine cover 43 shown in Figure 16 and the multiple holes 44d in the nail plate 44 shown in Figure 17 are the same size, the same shape, and are formed at the same intervals.

[0071] Next, further features of the shape of the first magazine cover 43 will be described using Figures 23 to 26. As shown in Figure 24, by molding the first magazine cover 43 in resin so that it is integrated with the nail plate 44, a raised portion 43e in the thickness direction T1 can be formed by resin at the nail entry end of the nail plate 44 and adheres closely to the end of the nail plate 44. As a result, no gap is formed between the nail entry end of the nail plate 44 and the resin, allowing the nail 3 to enter the nail plate 44 smoothly. Furthermore, by forming an inclined portion 43f in resin adjacent to the raised portion 43e, the entry of the nail 3 into the nail plate 44 can be made even smoother.

[0072] Furthermore, as shown in Figure 25, by molding the first magazine cover 43 in resin so that it is integrated with the nail plate 44, the position of the inner wall of the nail plate 44 in the thickness direction T1 and the position of the wall portion 43g of the first magazine cover 43 in the thickness direction T1 can be aligned as shown by the wall surface alignment V1. As a result, there are no steps or other differences between the inner wall of the nail plate 44 and the wall portion 43g of the first magazine cover 43, so that the nail 3 can enter the nail plate 44 smoothly.

[0073] Furthermore, as shown in Figure 26, the lower part of the nail plate 44 is covered by the restricting portion 43c of the first magazine cover 43, which positions the nail plate 44 and prevents the lower part of the nail plate 44 from separating from the first magazine cover 43 and obstructing nail feeding.

[0074] In this embodiment of the magazine 12 and nail driver 1, the first magazine cover 43, which is a component of the magazine 12, is formed to be integrated with the metal nail plate 44. Since the nail plate 44 acts as the skeleton, deformation due to warping of the magazine 12 can be suppressed. This prevents warping of the magazine 12 from adversely affecting the assembly of the magazine 12 and the nail feeding. As a result, the convenience of the magazine 12 and nail driver 1 can be improved.

[0075] Furthermore, by molding the first magazine cover 43 in resin so that it is integrated with the metal nail plate 44, the number of metal plate parts can be reduced, and the step of later assembling the nail plate 44 to the first magazine cover 43 can be eliminated, thereby reducing assembly man-hours.

[0076] Furthermore, by integrally forming a metal nail plate 44 within the first magazine cover 43, the strength of the resin first magazine cover 43 can be increased. As a result, the thickness of the first magazine cover 43 can be reduced. This makes it possible to reduce the weight of the first magazine cover 43.

[0077] The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from its spirit. For example, in the above embodiment, the case in which the metal nail plate 44 provided on the magazine 12 is a press-formed product was described, but the nail plate 44 may be formed by a processing method other than press forming. [Explanation of symbols]

[0078] 1...Driver, 2...Cylinder case, 3...Nail (fastener), 3a...Head, 3b...Body, 4...Motor case (motor housing), 5...Striking part, 6...Handle, 8...Connecting part, 10...Housing, 10a...Parallel wall, 10b...Protruding holding part, 10c...Outer wall, 10d...Hole, 12...Magazine, 12a...Ridge, 13...Motor, 14...Drive shaft, 15...Reduction mechanism, 16...Battery, 17...Controller, 18,19...Distribution 20...Cylinder, 21...Piston, 22...Upper piston chamber, 23...Driver blade, 24...Damper, 25...Pinwheel (upper winding section), 25a...Pin, 26...Pressure accumulation chamber (biasing section), 26a...Chamber, 27...Nose, 29...Push lever, 30...First blade guide, 31...Injection path, 33...Feeder, 33a...Knob, 34...Injection section, 36...Nail support (auxiliary protrusion), 36a...Shaft T, 37...Probe (projection), 37a...Lower end, 37b...Surface, 37c...Recess, 38...Spring (biasing member), 39...Second blade guide, 40...LED (illumination part), 40a...Light, 42...Second magazine cover (base member), 42a...Hole, 42b...Recess, 43...First magazine cover (cover member), 43a...Storage chamber, 43b...Main body, 43c...Regulating part, 43d...Hole, 43e...Bulge Part, 43f...inclined part, 43g...wall part, 43h...protrusion part, 44...nail plate (guide part), 44a...first plate part, 44b...second plate part, 44c...bent part, 44d...hole part, 45...clamping plate (clamping member), 50...mold, 50a...protrusion part, 100...metal fitting, 101...hole, 110...matting material, P1...imaginary line, Q1...intersection direction, R1...longitudinal direction, S1...width direction, T1...thickness direction, U1...area, V1...wall surface alignment

Claims

1. A magazine attached to a work machine having an injection section for supporting a fastener and a striking section for striking the fastener supported by the injection section, which supplies the fastener to the injection section, It has an elongated shape and is made of resin, and comprises a cover member that defines a housing chamber for the fastener, A metal guide portion is formed integrally with the cover member so as to face the storage chamber and guides the movement of the fastener within the storage chamber, A magazine that has [this feature].

2. The magazine according to claim 1, wherein the guide portion is inseparable from the cover member.

3. The magazine according to claim 2, wherein the cover member comprises a main body and a restricting portion provided integrally with the main body for restricting the relative movement of the guide portion with respect to the cover member.

4. The cover member has a length in the width direction and thickness direction perpendicular to the longitudinal direction that is shorter than the length in the longitudinal direction of the cover member. The magazine according to claim 1, wherein the length of the guide portion is shorter in the width direction and the thickness direction than in the longitudinal direction.

5. The magazine according to claim 4, wherein the guide portion is a single metal plate bent to have a first plate portion extending in the longitudinal direction and the thickness direction, and a second plate portion extending in the longitudinal direction and the width direction.

6. The magazine according to claim 5, wherein the guide portion is a press-formed product having a bent portion.

7. The cover member has a length in the thickness direction perpendicular to the longitudinal direction that is shorter than the length in the width direction perpendicular to the longitudinal direction of the cover member. The magazine according to claim 1, wherein the cover member is provided with a base member that is attached adjacent to the cover member in the thickness direction, thereby defining the storage chamber between the cover member and the base member.

8. The guide portion is positioned off-center to one side of the center of the cover member in the width direction. The system includes a clamping member that sandwiches the cover member and the base member in the thickness direction, The magazine according to claim 7, wherein the clamping member is attached to the other side of the center of the cover member in the width direction.

9. A striking part that strikes the fastener on one side in the first direction, An injection section that supports the fastener so as to be able to be struck by the striking section, and forms an injection path through which the struck fastener passes, A magazine that supplies the stopper to the injection unit, It has, The aforementioned magazine, It has an elongated shape and is made of resin, and comprises a cover member that defines a housing chamber for the fastener, A metal guide portion is formed integrally with the cover member so as to face the storage chamber and guides the movement of the fastener within the storage chamber, A work machine equipped with the following features.

Images