working machine

Abstract

The present application provides a kind of working machine, prevent empty hit with simple structure.In driving machine (10), empty hit prevention mechanism (100) has the position sensor (105) of feeder for detecting the forbidden position of feeder (64) of hopper (60).And, control unit (20) is prohibited when the driving of motor (52) is detected based on the detection signal of position sensor (105) for feeder (64) forbidden position, thus, the empty hit of striker (44) can be prevented.And, position sensor (105) for feeder is arranged in the structure of the ejector portion (34).Thus, compared with the structure that position sensor (105) for feeder is arranged in the hopper shell (62) of hopper (60), the wire connecting control unit (20) and position sensor (105) for feeder does not need to be wound to the outside of machine shell (14).Therefore, empty hit to nail (N) can be prevented with simple structure.

Description

Technical Field

[0001] This invention relates to a work machine. Background Technology

[0002] The driving machine (working machine) described in Patent Document 1 below has a dry-hitting prevention mechanism. When the remaining amount of the stop member is less than a predetermined number of pieces, the dry-hitting prevention mechanism prevents the driving machine from driving. Briefly describing the driving machine, it has a push rod that presses against the material being driven. When the control unit detects upward movement of the push rod, the driving machine performs its driving action. On the other hand, when the remaining amount of the stop member in the hopper is less than a predetermined number of pieces, the feeder supplying the stop member from the hopper interferes with the push rod. This prevents the push rod from moving upward, thus preventing the driving machine from driving. As a result, dry-hitting by the driving machine is prevented.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-167340 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, there is room for improvement in the aforementioned feeding machine in the following aspects. Specifically, as described above, in the feeding machine, if the remaining amount of the stop member in the hopper is less than a predetermined number of pieces, the feeder comes into contact with the push rod. Therefore, when the push rod is forcefully pressed against the material being fed, the push rod or feeder may break. In contrast, for example, by providing a sensor (detection unit) in the hopper to detect the position of the feeder, the remaining amount of the stop member can be detected while suppressing breakage of the push rod or feeder.

[0008] However, in this case, since the sensor is installed in the hopper of the punching machine body, it is necessary, for example, to wind the wires used to connect the sensor and the control unit of the punching machine body to the outside of the punching machine housing, and to form a structure capable of handling the wires. As a result, the structure of the punching machine may become complicated.

[0009] In view of the aforementioned facts, the object of the present invention is to provide a work machine that can prevent dry firing with a simple structure.

[0010] Technical means to solve the problem

[0011] One or more embodiments of the present invention are a working machine, comprising: a body portion having an injection portion having a stop member supplied thereto; a striking portion striking the stop member held by the injection portion toward one side in a first direction; a hopper portion having a housing and a feeder, the housing being assembled to the body portion and housing the stop member, the feeder being disposed in the housing in a manner movable in a second direction intersecting the first direction and moving toward one side in the second direction, thereby supplying the stop member to the injection portion; a feeder detection portion detecting the position of the feeder; and a control portion controlling the driving of the striking portion, and prohibiting the striking portion from striking when the feeder detection portion detects that the feeder is in a prohibited position, the feeder detection portion being disposed in the injection portion.

[0012] One or more embodiments of the present invention are as follows: the feeder detection unit is disposed at a position that overlaps with the feeder when viewed from the second direction.

[0013] One or more embodiments of the present invention are as follows: in the injection section, a feeder detection section is configured to be movable relative to the feeder detection section in a contact / separation direction; the feeder detection section is disposed at a separation position where it is separated from the feeder detection section by a force-applying member; and the feeder moves to the prohibited position, thereby moving to an approach position close to the feeder detection section; the feeder detection section detects that the feeder is in the prohibited position by detecting that the feeder detection section is in the approach position.

[0014] One or more embodiments of the present invention are as follows: the feeder detection unit is disposed between the feeder and the feeder detection unit, and when the feeder moves toward the prohibited position, the feeder presses the feeder detection unit, thereby moving the feeder detection unit from the separated position to the approach position.

[0015] One or more embodiments of the present invention are as follows: a machine is provided in which a pressing part is configured to move in a first direction and a pressing detection part is configured to detect the position of the pressing part; the control part prohibits the striking part from striking when it detects, based on the detection signal of the pressing detection part, that the pressing part is in an initial position protruding from the injection part to one side in the first direction; and allows the striking part to strike when it detects, based on the detection signal of the pressing detection part, that the pressing part is in an allowed position moving from the initial position to the other side in the first direction.

[0016] One or more embodiments of the present invention are as follows: a working machine wherein the feeder detection unit and the pressing detection unit are disposed on a detection substrate.

[0017] One or more embodiments of the present invention are as follows: a working machine wherein the feeder detection unit is disposed on the first side of the detection substrate, and the pressing detection unit is disposed on the second side of the detection substrate.

[0018] One or more embodiments of the present invention are as follows: a pressing part is connected to the pressing part in such a way that it can move integrally in the first direction, the pressing detection part detects the movement of the pressing detection part toward the allowed position, and a guide part is provided in the ejection part to guide the movement of the pressing detection part toward the first direction.

[0019] One or more embodiments of the present invention are as follows: the guide portion has a pair of track portions extending in the first direction and arranged facing each other in a third direction orthogonal to the first direction; a portion of the pressing detection portion is arranged between the pair of track portions in the third direction.

[0020] One or more embodiments of the present invention are as follows: a working machine is provided in which a magnet is provided in the pressing detection part, and the pressing detection part is a magnetic sensor, which detects the allowable position of the pressing part by detecting the proximity of the magnet.

[0021] One or more embodiments of the present invention are as follows: the pressing part is configured to include: a first pressing part that abuts against the material being driven in when the stop member strikes; a second pressing part that abuts against the ejection part in the initial position to prevent the pressing part from moving to one side in the first direction; and an adjusting member that changes the relative position of the first pressing part and the second pressing part in the first direction, wherein the pressing detection part is connected to the adjusting member in a manner that allows it to move integrally in the first direction.

[0022] The effects of the invention

[0023] Through one or more embodiments of the present invention, a simple structure can be used to prevent dry firing. Attached Figure Description

[0024] Figure 1 This is a side view of the punching machine of this embodiment, viewed from the left.

[0025] Figure 2 yes Figure 1 The image shown is a frontal view of the injection machine from the front side.

[0026] Figure 3 It means Figure 1 The image shown is a side view of the inside of the injection machine housing, viewed from the left.

[0027] Figure 4 It means Figure 3 The diagram shows a cross-sectional view from the left side of the assembled engine head, cylinder, and accumulator.

[0028] Figure 5 It means Figure 1 The cross-sectional view of the periphery of the ejection section of the injection unit shown from the front. Figure 1 (5-5 line cross-section).

[0029] Figure 6 yes Figure 3 The plan view of the upper part of the casing of the injection machine shown. Figure 3 (Sectional view along line 6-6).

[0030] Figure 7 This indicates that the cylinder and accumulator are from Figure 6 The diagram shows a planar cross-section of the state in which the casing body is rotated relative to the casing.

[0031] Figure 8 It means Figure 3 The image shows a three-dimensional view of the periphery of the injection section of the injection machine.

[0032] Figure 9 yes Figure 8 A three-dimensional view showing a portion of the periphery of the ejection section that is broken.

[0033] Figure 10 Viewed from the right side Figure 9 A cross-sectional view of a portion of the periphery of the ejection section is shown.

[0034] Figure 11 It means Figure 10 The cross-sectional view shown from the right shows the push rod unit moved upward and positioned in the allowed position.

[0035] Figure 12 It means Figure 1 The cross-sectional view of the periphery of the injection section of the injection machine as seen from above. Figure 1 (Sectional view along line 12-12).

[0036] Figure 13 It means Figure 12 The feeder of the hopper shown is displaced from the prohibited position to the other side of the tilt direction by a nail. Figure 12 The corresponding cross-sectional view.

[0037] [Explanation of Symbols]

[0038] 10: Input machine (working machine)

[0039] 12: Insertion into the main body (main body section)

[0040] 20: Control Department

[0041] 34: Ejection section

[0042] 44: Striking Department

[0043] 60: Silo

[0044] 62: Silo shell (shell)

[0045] 64: Feeder

[0046] 81: Push rod unit (pressing part)

[0047] 86: Regulator (Adjusting Component)

[0048] 88: Stop plate (second pressing part)

[0049] 90: Push rod (first pressing part)

[0050] 92: Detector slider (press the part being detected)

[0051] 93: Magnet

[0052] 94: Rod position sensor (press detection unit)

[0053] 95: Sensor substrate (detection substrate)

[0054] 101: Feeder Detector Rod (Feeder Detected Section)

[0055] 103: Return spring (force-applying component)

[0056] 105: Position sensor for feeder (feeder detection unit)

[0057] N: Nail (stopping component) Detailed Implementation

[0058] Hereinafter, the inserting machine 10, which is the working machine of this embodiment, will be described using the accompanying drawings. Furthermore, the arrows UP, FR, and RH appropriately shown in the drawings represent the upper side, front side, and right side of the inserting machine 10, respectively. In the following description, when using the directions of up / down, front / back, and left / right, unless otherwise specified, they will be used to represent the up / down direction, front / back direction, and left / right direction of the inserting machine 10. Moreover, the up / down direction corresponds to the first direction of the present invention, and the lower side corresponds to one side of the first direction of the present invention.

[0059] like Figures 1-3As shown, the punching machine 10 has a punching machine body 12 as the main body, and a hopper 60 is assembled on the punching machine body 12. Then, nails N, which are filled in the hopper 60 as stop members, are supplied to the punching machine body 12 and punched into the material W to be punched.

[0060] The injection machine body 12 comprises a housing 14, an injection head 30, a cylinder 40, a pressure accumulator 42, and a drive mechanism 50. Additionally, the injection machine body 12 includes an anti-loosening mechanism 70 (see reference). Figure 6 ), Insert into the depth adjustment mechanism 80 (refer to) Figures 8-11 ) and anti-dry-firing mechanism 100 (refer to Figure 12 and Figure 13 The following describes the structure of the injection machine 10.

[0061] (Regarding housing 14) Housing 14, when viewed from the left side, is formed into a hollow, roughly inverted P-shape. Specifically, housing 14 is configured to include: a main housing portion 14A extending vertically; a handle portion 14B extending obliquely upward and backward from the middle portion of the main housing portion 14A in the vertical direction; and a motor housing portion 14C extending rearward from the lower end of the main housing portion 14A. Furthermore, the rear end of the motor housing portion 14C bends upward and connects to the rear end of the handle portion 14B. Additionally, housing 14 includes housing members 16 divided into two parts in the horizontal direction, and housing 14 is constructed by assembling housing members 16 together.

[0062] A control unit 20 is provided inside the rear end of the motor housing 14C. This control unit 20 controls the motor 52 (described later) and the drive of the striking unit 44 (described later). Furthermore, the rear end of the handle 14B is configured as a battery mounting section 14D, where a battery 22 is detachably mounted. The battery 22 is electrically connected to the control unit 20, thus supplying power to the control unit 20.

[0063] A trigger 24 is provided in the front end of the handle portion 14B. The trigger 24 is configured to protrude downward from the handle portion 14B and be operable by pulling upward. Additionally, a trigger switch (not shown) is provided above the trigger 24 in the front end of the handle portion 14B. The trigger switch is pressed when the trigger 24 is pulled, and a detection signal is output from the trigger switch to the control unit 20. Furthermore, the control unit 20 detects operation on the trigger 24 based on the detection signal from the trigger switch.

[0064] (Regarding nose section 30) as follows Figures 1-5 and Figures 8-13As shown, the nozzle 30 is made of metal and is disposed within the lower end of the main body housing 14A. The nozzle 30 is configured to include: a nozzle mounting cylinder 30A constituting the upper end of the nozzle 30, and an injection body 30B extending downward from the nozzle mounting cylinder 30A. The nozzle mounting cylinder 30A is formed as a bottomed cylindrical shape that opens upward, and a female thread 30H is formed on the inner circumferential surface of the side wall of the nozzle mounting cylinder 30A. An injection hole 30C is formed through the center of the bottom wall of the nozzle mounting cylinder 30A. A generally cylindrical buffer 36 (see reference) is housed inside the nozzle mounting cylinder 30A. Figure 4 and Figure 5 Furthermore, as the striking part 44 descends from the top dead center to the bottom dead center, as described later, the striking part 44 collides with the buffer 36, and the buffer 36 absorbs the kinetic energy of the striking part 44.

[0065] The injection section body 30B extends downward from the head mounting cylinder portion 30A and protrudes downward from the body housing portion 14A. A blade guide 32 is provided on the injection section body 30B. That is, the injection section body 30B and the blade guide 32 constitute the injection section 34 for ejecting the nail N downward. The blade guide 32 is formed into a generally rectangular cylinder extending in the vertical direction and is disposed below the injection hole 30C. Furthermore, the blade guide 32 includes a front blade guide member 32A constituting the front portion of the blade guide 32 and a rear blade guide member 32B constituting the rear portion of the blade guide 32, and the front blade guide member 32A and the rear blade guide member 32B are fastened to the injection section body 30B. Figure 12 and Figure 13 As shown, the blade guide 32 has an internal configuration of an injection path 32C, with the injection hole 30C positioned above the injection path 32C. Furthermore, a guide slit 32D extending vertically is formed through the rear blade guide member 32B, opening the injection path 32C rearward. Specifically, the guide slit 32D opens slightly to the left and rearward when viewed from above.

[0066] like Figure 9 , Figure 12 and Figure 13 As shown, a rod receiving portion 32E for accommodating the feeder probe rod 101 (described later) is provided on the left side of the injection path 32C on the rear blade guide member 32B. The rod receiving portion 32E is formed into a generally bottomed rectangular cylinder that opens to the rear. Furthermore, the rod receiving portion 32E is disposed adjacent to the rear side of the injection body 30B. A circular through hole 32F is formed through the bottom wall (front wall) of the rod receiving portion 32E. Moreover, the axis of the rod receiving portion 32E is slightly inclined to the left rearward when viewed from above.

[0067] Furthermore, on the ejection body 30B, a substrate receiving portion 30D for receiving the sensor substrate 95 (described later) is formed on the front side of the rod receiving portion 32E. The substrate receiving portion 30D is formed as a concave shape that opens to the rear, and the interior of the substrate receiving portion 30D communicates with the interior of the rod receiving portion 32E through a through hole 32F. Furthermore, on the front side of the ejection body 30B, a guide rail 30E is formed on the front side of the substrate receiving portion 30D as a guide portion protruding to the front. The guide rail 30E forms part of the penetration depth adjustment mechanism 80 (described later). Viewed from the front, the guide rail 30E is formed in a generally rectangular shape with the vertical direction as its length. A guide groove 30E1 is formed on the guide rail 30E. The guide groove 30E1 extends vertically and opens to the front, and is formed as a generally T-shaped groove when viewed from the bottom. Thus, on the guide rail 30E, a pair of track portions 30E2 are formed on both sides of the opening of the guide groove 30E1 in the left-right direction. Furthermore, the guide groove 30E1 opens downwards. Moreover, a sensor hole 30F is formed through the ejection body 30B, connecting the guide groove 30E1 to the substrate receiving portion 30D (see reference). Figures 9-11 The sensor hole 30F is formed as a generally elongated hole extending in the vertical direction.

[0068] like Figure 5 and Figure 8 As shown, a conversion receiving section 30G, which houses the converter and will be described later, is formed on the right side of the upper end of the ejection section body 30B. The conversion receiving section 30G is formed into a cylindrical shape with the rear-to-rear direction as the axial direction. Furthermore, when the ejector head 30 is housed in the body housing section 14A, the housing 14 is assembled to the ejector head 30 without being able to move relative to the central axis AL of the ejector head mounting cylinder section 30A. Moreover, an elastomer 15 containing synthetic resin such as rubber is provided between the housing 14 and the ejector head 30.

[0069] (Regarding cylinder 40) as follows Figures 3-5 As shown, the cylinder 40 is formed into a generally cylindrical shape with the vertical direction as its axial direction, and is disposed inside the main body housing 14A on the upper side of the head 30. Specifically, the cylinder 40 and the head mounting cylinder 30A are arranged coaxially, and the central axis of the cylinder 40 coincides with the central axis AL of the head mounting cylinder 30A. A male thread 40B is formed on the outer periphery of the upper end of the cylinder 40, and a male thread 40C is formed on the outer periphery of the lower end of the cylinder 40. Moreover, the male thread 40C at the lower end of the cylinder 40 engages with the female thread 30H of the head mounting cylinder 30A, thus connecting the cylinder 40 to the head mounting cylinder 30A. Specifically, the cylinder 40 rotates relative to the head 30 in the axial rotation direction about the central axis AL (clockwise when viewed from above), and the cylinder 40 engages with the head mounting cylinder 30A. Thus, the cylinder 40 is connected to the head 30 through threaded connection.

[0070] (Regarding accumulator 42) such as Figure 3 and Figure 4 As shown, the accumulator 42 is formed as a bottomed cylindrical shape that opens to the downward side. The lower part of the accumulator 42 is configured as a container mounting cylinder 42A, which is formed as a cylinder with the vertical direction as its axial direction. A female thread 42D is formed on the inner circumferential surface of the container mounting cylinder 42A. Moreover, the female thread 42D of the container mounting cylinder 42A engages with the male thread 40B at the upper end of the cylinder 40, thus connecting the accumulator 42 to the cylinder 40. Specifically, the accumulator 42 rotates relative to the cylinder 40 in one direction of axial rotation about the central axis AL, and the accumulator 42 engages with the cylinder 40. Thus, the accumulator 42 is connected to the cylinder 40 through threaded connection. In addition, the accumulator 42 and the cylinder 40 are arranged coaxially, and the central axis of the accumulator 42 coincides with the central axis AL.

[0071] The upper part of the accumulator 42 is formed with an increased diameter compared to the container mounting cylinder 42A. Furthermore, the interior of the accumulator 42 is configured as a pressure chamber 42B, which is filled with gas. The gas filling the pressure chamber 42B is air, an inert gas, etc.; in this embodiment, air is used to fill the pressure chamber 42B. Additionally, a downwardly protruding replenishment valve mounting portion 42C is formed at the center of the top wall of the accumulator 42. Thus, a replenishment valve is installed at the replenishment valve mounting portion 42C, allowing gas to be replenished into the pressure chamber 42B.

[0072] Furthermore, regarding the shape of the accumulator 42 in longitudinal section through the central axis AL, except for the engaging recess 72 described later, the shape is the same in the circumferential direction of the accumulator 42. That is, the planar cross-sectional shape of the accumulator 42 is formed as a circle at any position in the vertical direction. In addition, when the accumulator 42 is housed in the main body housing 14A, the accumulator 42 is configured to be able to move relative to the axis around the central axis AL.

[0073] (Regarding the Strike Section 44) as follows Figure 4 and Figure 5 As shown, the striking part 44 is formed as an elongated strip extending in the vertical direction and is movably housed within the cylinder 40 in the vertical direction. Specifically, the striking part 44 is configured to be able to move at the top dead center (top dead center). Figure 4 The position indicated by the double-dotted line in the middle) and the lower stop point that moves downward from the upper stop point ( Figure 4 and Figure 5 The striking part 44 is configured to include: a piston 46 constituting the upper end of the striking part 44, and a drive blade 48 extending downward from the piston 46.

[0074] The piston 46 is formed in a generally cylindrical shape with the vertical direction as the axial direction, and the outer diameter of the piston 46 is set to be slightly smaller than the inner diameter of the cylinder 40. A mounting portion 46A for mounting the drive blade 48 (described later) is formed in the center of the piston 46. The mounting portion 46A is formed in a generally cylindrical shape with the vertical direction as the axial direction and extends downward from the piston 46.

[0075] The drive blade 48 is formed into a generally elongated strip extending in the vertical direction. The upper end of the drive blade 48 is embedded in the mounting portion 46A, and the drive blade 48 extends downward from the piston 46. Moreover, the drive blade 48 is configured to move within the injection path 32C of the head 30, and moves from the top dead center to the bottom dead center via the striking portion 44, so that the drive blade 48 strikes the nail N in the injection path 32C from above.

[0076] (Regarding drive mechanism 50) as follows Figure 3 and Figure 5 As shown, the drive mechanism 50 includes a motor 52, a reduction gear 53, and a conversion unit 55. The motor 52 is a brushless motor, housed in the rear end of the motor housing 14C, and electrically connected to the control unit 20. The motor 52 has a drive shaft 52A with the back-to-forth direction as its axial direction, and the front end of the drive shaft 52A is connected to the reduction gear 53 disposed on the front side of the motor 52. Furthermore, the reduction gear 53 is configured to be connected to a rotating shaft 54 ​​disposed in the conversion unit housing 30G of the head unit 30, and the rotational force of the motor 52 is transmitted to the rotating shaft 54 ​​via the reduction gear 53.

[0077] The conversion unit 55 is disposed within the conversion unit housing 30G. The conversion unit 55 is configured to transmit the rotational force of the rotating shaft 54 ​​to the drive blade 48, causing the drive blade 48 to move upward. The conversion unit 55 is configured to include a pin wheel 56 fixed to the rotating shaft 54, a plurality of pinion pins 57 disposed on the pin wheel 56, and a plurality of rack portions 48A formed on the drive blade 48. The pinion pins 57 are arranged at predetermined intervals in the circumferential direction of the rotating shaft 54, and the rack portions 48A are arranged at predetermined intervals in the vertical direction.

[0078] Furthermore, the pinion pin 57 is configured to engage and disengage with the rack portion 48A. Moreover, it is configured such that when the pin wheel 56 rotates, the pinion pin 57 engages with the rack portion 48A, thereby causing the drive blade 48 to move upwards. On the other hand, by disengaging the pinion pin 57 from the rack portion 48A, the striking portion 44 descends using the pressure within the pressure chamber 42B.

[0079] (Regarding hopper 60) as follows Figure 1 , Figure 2 , Figure 4 , Figure 8 , Figure 12 and Figure 13As shown, the hopper 60 is configured to include a hopper housing 62 as the outer shell and a feeder 64 disposed on the hopper housing 62. The hopper housing 62 is formed into a generally elongated and flat shape with its thickness in the left-right direction, and extends upward along a direction that slopes towards the rear (hereinafter referred to as the slope direction) when viewed from the left. The hopper housing 62 is disposed adjacent to the left side of the motor housing 14C, the front end of the hopper housing 62 is mounted on the injection body 30B of the head 30, and the rear end of the hopper 60 is fixed to the motor housing 14C. Furthermore, when viewed from above, the hopper housing 62 is slightly tilted to the left and rear (see reference). Figure 12 and Figure 13 ).

[0080] The hopper housing 62 has a first guide rail 62A and a second guide rail 62B extending in an inclined direction. A nail N is filled in the first guide rail 62A, and the interior of the first guide rail 62A is configured as a receiving portion for accommodating the nail N (see reference). Figure 12 and Figure 13 Furthermore, the interior of the first guide rail 62A is connected to the injection path 32C via the guide slit 32D of the injection section 34. A feeder 64 for supplying nails N to the injection path 32C is movably mounted on the second guide rail 62B. The feeder 64 is forced towards its front end (on one side of the inclined direction, closer to the injection section 34) by a force-applying spring (not shown). Thus, the nail N is configured to be supplied into the injection path 32C of the injection section body 30B via the feeder 64.

[0081] Furthermore, a pressing portion 64A for pressing the feeder probe rod 101 (described later) is formed at the front end of the feeder 64. The rod receiving portion 32E is disposed within the front end of the second guide rail 62B. Moreover, when the remaining amount of nails N is less than a predetermined number (4 in this embodiment), the pressing portion 64A presses the feeder probe rod 101 (described later) to one side in the tilting direction and abuts against the rod receiving portion 32E (for...). Figure 1 , Figure 8 and Figure 12 The position shown is referred to as the prohibited position of the feeder 64. On the other hand, when the remaining amount of nails N is more than the specified number, the feeder 64 is positioned on the other side of the inclined direction by the nails N, and the pressing part 64A is separated from the rod receiving part 32E (see reference). Figure 13 ).

[0082] (Regarding the anti-loosening mechanism 70) The anti-loosening mechanism 70 is configured to maintain the engagement state between the machine head 30 and the cylinder 40, and the engagement state between the cylinder 40 and the accumulator 42. For example... Figure 6As shown, the anti-loosening mechanism 70 is configured to include: a locking pin 71 provided on the main body housing portion 14A of the housing 14 as a locking member, and a locking recess 72 formed on the outer periphery of the container mounting cylinder portion 42A of the accumulator 42 as a pair of locking portions.

[0083] On the inner circumferential surface of the main housing 14A, a pin receiving portion 73 for receiving the locking pin 71 is formed on the radially outer side of the container mounting cylinder 42A in the accumulator 42. The pin receiving portion 73 is formed in a generally cylindrical shape with the radial direction of the accumulator 42 as the axial direction. The pin receiving portion 73 is formed on one side (right side) of the housing member 16 of the housing 14, and is disposed at the right end of the main housing 14A.

[0084] The locking pin 71 is formed into a generally cylindrical shape with the radial direction of the accumulator 42 as the axial direction, and is movably housed within the pin receiving portion 73 of the main body housing 14A. Furthermore, an elastic body 74 for applying force to the locking pin 71 radially inward towards the accumulator 42 is housed within the pin receiving portion 73. The elastic body 74 includes an elastic member such as a compression spring or rubber. Thus, one end of the locking pin 71 (the end on the accumulator 42 side) abuts against the outer periphery of the container mounting cylinder portion 42A of the accumulator 42.

[0085] A locking recess 72 is formed on the outer periphery of the container mounting cylinder portion 42A of the accumulator 42. The locking recess 72 includes a flat portion 72A and wall portions 72B disposed on both sides of the flat portion 72A in the circumferential direction of the container mounting cylinder portion 42A. It is formed as a recess that opens radially outward toward the accumulator 42, and as a groove extending in the vertical direction (see reference). Figure 3 The flat portion 72A extends circumferentially toward the container mounting cylinder portion 42A. The wall portion 72B extends radially toward the container mounting cylinder portion 42A and is erected vertically relative to the flat portion 72A. A pair of engaging recesses 72 are arranged 180 degrees apart circumferentially on the accumulator container 42. At a predetermined position (hereinafter referred to as the engaging position) in the circumferential (rotational direction) of the accumulator container 42, the engaging recesses 72 and the engaging pins 71 are arranged facing each other radially on the accumulator container 42. That is, in this embodiment, as... Figure 6As shown, in the engaged position of the accumulator 42, one of the engaging recesses 72 is open to the right. Furthermore, in this position, one end of the engaging pin 71 engages with the engaging recess 72, restricting the rotation of the central axis AL within the accumulator 42. Specifically, assuming the accumulator 42 is to rotate relative to the housing 14, the engaging pin 71 abuts against the wall portion 72B. The wall portion 72B is vertically positioned relative to the flat portion 72A, preventing the engaging pin 71 from passing over the wall portion 72B, thus restricting its movement outward from the engaging recess 72 and restricting the rotation of the central axis AL within the accumulator 42.

[0086] Additionally, the outer peripheral edge of the engaging recess 72 includes a raised portion 72C that slightly protrudes radially outward from the pressure accumulator 42, and an inclined portion 72D connecting the portion other than the engaging recess 72 to the outer peripheral surface of the container mounting cylinder 42A with the raised portion 72C. The raised portion 72C extends circumferentially in a radial manner facing the container mounting cylinder 42A. The inclined portion 72D is inclined circumferentially relative to the container mounting cylinder 42A, and the angle relative to the container mounting cylinder 42A is smaller than that of the wall portion 72B. Moreover, as... Figure 7 As shown, when the position of the accumulator 42 in the assembled state shifts from the engaged position to the circumferential position of the accumulator 42, the engaging pin 71 is pressed by the outer periphery of the container mounting cylinder 42A and shifted radially outward, and the elastomer 74 is compressed and deformed.

[0087] In addition, such as Figure 5 As shown, a groove 40A is formed on the outer periphery of the lower end of the cylinder 40, at a position radially opposite to the upper end of the head mounting cylinder 30A of the head 30. The groove 40A is formed along the circumference of the cylinder 40 and throughout the entire circumference of the cylinder 40. An annular rotation suppression member 75 is provided in the groove 40A, and the rotation suppression member 75 includes an elastic member. Moreover, the rotation suppression member 75 is disposed between the cylinder 40 and the head mounting cylinder 30A in a compressed and deformed state.

[0088] (Regarding penetrating the deep adjustment mechanism 80) such as Figures 8-11 As shown, the penetration depth adjustment mechanism 80 is configured to adjust the penetration depth of the nail N into the material W being driven into. The penetration depth adjustment mechanism 80 is configured to include a push rod unit 81 as a pressing part, a probe slider 92 as a pressing detection part, and a rod position sensor 94 as a pressing detection part.

[0089] The push rod unit 81 is generally formed as a long strip extending in the vertical direction. Furthermore, the push rod unit 81 is disposed on the front side of the injection section body 30B of the nozzle 30, and is movable relative to the injection section body 30B in the vertical direction. Specifically, the push rod unit 81 is configured to be able to move in the initial position ( Figure 3 and Figure 10 The position shown) and the allowed position to move upwards from the initial position ( Figure 11 The actuator moves between the positions shown. The following describes the state of the actuator unit 81 in its initial position.

[0090] The push rod unit 81 is configured to include a connecting shaft 82, an adjuster 86 as an adjustment member, a stop plate 88 as a second pressing part, and a push rod 90 as a first pressing part. The connecting shaft 82 constitutes the upper end of the push rod unit 81. The connecting shaft 82 is formed into a generally rectangular column extending in the vertical direction and is disposed on the front side of the upper end of the injection body 30B. Moreover, the upper end of the connecting shaft 82 can be inserted into a cylindrical support cylinder 83 fixed to the head 30 in the vertical direction. Thus, the connecting shaft 82 can be connected to the head 30 in the vertical direction. A spring support member 84 is provided on the lower end side of the connecting shaft 82. The spring support member 84 is formed into a generally annular plate with the vertical direction as its thickness direction. The connecting shaft 82 is embedded in the spring support member 84, and the spring support member 84 is fixed to the connecting shaft 82.

[0091] The adjuster 86 is formed in a generally cylindrical shape with the vertical direction as the axial direction, and is coaxially arranged with the connecting shaft 82 on the lower side of the spring support member 84. Furthermore, the lower end of the connecting shaft 82 is inserted into the upper end of the adjuster 86, and the adjuster 86 is rotatably supported on the connecting shaft 82. A connecting pin 87 is provided at the lower end of the connecting shaft 82, and the connection between the adjuster 86 and the connecting shaft 82 is maintained by the connecting pin 87. A female thread is formed on the lower part of the inner circumferential surface of the adjuster 86. Furthermore, a groove 86A is formed on the lower end portion of the outer circumference of the adjuster 86. The groove 86A opens radially outward of the adjuster 86 and extends throughout the entire circumference of the adjuster 86. Thus, the lower end of the adjuster 86 protrudes radially outward relative to the groove 86A.

[0092] The stop plate 88 is formed in a generally annular shape with its thickness along the vertical direction. The lower end of the connecting shaft 82 is inserted into the stop plate 88, and the stop plate 88 is positioned between the spring support member 84 and the adjuster 86. An abutment piece 88A extending rearward is integrally formed on the stop plate 88. The front end (rear end) of the abutment piece 88A abuts against the upper surface of the guide rail 30E of the ejection section body 30B of the nozzle 30. This restricts the downward movement of the push rod unit 81 in its initial position.

[0093] Additionally, a push spring 89 (broadly defined as a component grasped as a pressing force member, see reference) is installed on the connecting shaft 82. Figure 3 and Figure 10The push spring 89 is configured as a compression helical spring. The upper end of the push spring 89 is engaged with the support cylinder 83, and the lower end of the push spring 89 is engaged with the spring support member 84. The push spring 89 applies force to the push rod unit 81 downward. As a result, the push rod unit 81 is held in the initial position.

[0094] The push rod 90 forms the lower part of the push rod unit 81. The push rod 90 is formed into a generally elongated strip shape, with the thickness in the back-to-back direction and extending in the top-to-bottom direction. The upper end of the push rod 90 is bent and disposed on the lower side of the adjuster 86. An adjusting shaft 91 protruding upward is provided at the upper end of the push rod 90. The adjusting shaft 91 is formed into a generally cylindrical shape with the top-to-bottom direction as the axial direction, and a male thread is formed on the outer periphery of the adjusting shaft 91. Moreover, the adjusting shaft 91 is inserted into the interior of the adjuster 86 from the bottom and screwed into the inner circumferential surface of the adjuster 86.

[0095] Thus, the push rod 90 is connected to the adjuster 86 via a threaded connection. Therefore, the push rod 90 is configured such that by rotating the adjuster 86 about its axis, the push rod 90 moves relative to the adjuster 86 in the vertical direction. That is, by rotating the adjuster 86, the push rod unit 81 extends and retracts in the vertical direction.

[0096] Viewed from below, the lower end of the push rod 90 is formed into a roughly U-shaped structure that opens to the rear, allowing the blade guide 32 to be inserted into the lower end of the push rod 90 in a vertically movable manner. That is, the lower end of the push rod 90 can be connected to the blade guide 32 in a relatively movable manner.

[0097] Furthermore, at the initial position of the push rod unit 81, the lower end of the push rod 90 protrudes further downward than the injection portion 34 (blade guide 32). Additionally, as described above, by rotating the adjuster 86 about its axis, the push rod 90 moves relative to the adjuster 86 in the vertical direction. Therefore, the amount of protrusion of the push rod 90 at its initial position can be adjusted via the adjuster 86. Furthermore, by overcoming the force applied by the push spring 89, the push rod 90 is moved upward, thereby setting the push rod unit 81 to an allowable position. That is, the distance the push rod 90 travels from its initial position to the allowable position varies depending on the amount of protrusion of the push rod 90. Thus, the driving depth of the nail N into the material W is adjusted.

[0098] like Figure 12 and Figure 13As shown, the probe slider 92 is made of metal or resin and is roughly T-shaped when viewed from above. Specifically, the probe slider 92 has a pair of left and right flanges 92A, which are roughly rectangular in shape with the thickness in the front-to-back direction and protrude outwards in the left-to-right direction from the rear end of the probe slider 92. Moreover, the rear end of the probe slider 92 is inserted from below into the guide groove 30E1 of the guide rail 30E in the injection section 34, and can be connected to the injection section body 30B in a vertically movable manner. In addition, when the probe slider 92 is connected to the injection section body 30B, the guide rail 30E restricts the relative movement of the probe slider 92 in the front-to-back and left-to-right directions.

[0099] A connecting groove 92B, open to the front, is formed on the front of the probe slider 92. The connecting groove 92B extends and passes through in the left-right direction. Furthermore, the lower end of the adjuster 86 is inserted into the connecting groove 92B, and the groove portion 86A of the adjuster 86 engages with the connecting groove 92B in the vertical direction. Thus, the probe slider 92 and the adjuster 86 are configured to be integrally connected in the vertical direction, and the adjuster 86 can rotate relative to the probe slider 92.

[0100] Additionally, a magnet 93 is embedded at the rear of the probe slider 92. The magnet 93 is formed into a generally cylindrical shape with the rear-to-rear direction as the axis. Moreover, in the permissible position of the push rod unit 81, the magnet 93 is positioned facing the front side of the sensor hole 30F of the ejection section 34 (see reference). Figure 11 ).

[0101] A rod position sensor 94 is disposed on a sensor substrate 95, which is a detection substrate housed in a substrate housing 30D within the injection unit 34. The sensor substrate 95 is formed as a generally rectangular plate with its thickness along its longitudinal direction, and is mounted on the injection unit body 30B via a resin substrate holder 96. The rod position sensor 94 is disposed on the upper part of the front (second surface) of the sensor substrate 95 and is positioned behind the sensor hole 30F. The rod position sensor 94 is a magnetic sensor configured as a Hall element and is electrically connected to the control unit 20. Furthermore, it is configured such that, at the permissible position of the push rod unit 81, the magnet 93 is positioned facing the rod position sensor 94 in the longitudinal direction via the sensor hole 30F. Thus, the rod position sensor 94 outputs a detection signal corresponding to the magnetic flux density of the magnet 93 to the control unit 20, and the control unit 20 detects the permissible position of the push rod unit 81 based on the detection signal from the rod position sensor 94.

[0102] (Regarding anti-missile mechanism 100) such as Figures 9-13As shown, the anti-dry-shoot mechanism 100 is configured to include a feeder probe rod 101 as a feeder detection unit and a feeder position sensor 105 as a feeder detection unit. The feeder probe rod 101 is formed into a generally cylindrical shape and is housed in the rod receiving portion 32E along the axial direction of the rod receiving portion 32E of the injection body 30B. The front end portion of the feeder probe rod 101 is configured to pass through the insertion hole 32F of the rod receiving portion 32E and is movable relative to it along the axial direction. That is, the feeder probe rod 101 is configured to be movable relative to the sensor substrate 95 in the direction of contact / separation. Specifically, the feeder probe rod 101 is configured to be at the separation position (most separated from the sensor substrate 95) Figure 13 The position shown is close to the sensor substrate 95 from the separation position. Figure 12 Move between the positions shown.

[0103] A flange 101A extending radially outward is formed at the rear end of the feeder probe 101. Furthermore, the flange 101A abuts against a stop wheel 104 provided at the opening of the rod receiving portion 32E from the front, restricting the rearward movement of the feeder probe 101 in the separated position. Additionally, a return spring 103, which is a force-applying member configured as a compression coil spring, is installed on the feeder probe 101. The front end of the return spring 103 is engaged with the front wall of the rod receiving portion 32E, and the rear end of the return spring 103 is engaged with the flange 101A. The return spring 103 applies force to the feeder probe 101 rearward (separated position side). Thus, the feeder probe 101 is held in the separated position.

[0104] Furthermore, in the separated position of the feeder detection rod 101, the rear end of the feeder detection rod 101 protrudes rearward from the rod receiving portion 32E and is disposed within the front end of the second guide rail 62B of the hopper housing 62. Moreover, when the feeder 64 of the hopper 60 is disposed in the prohibited position, the feeder detection rod 101 is configured such that it is pressed forward by the feeder 64 and disposed in the approach position.

[0105] A magnet 102 is embedded at the front end of the feeder probe 101. The magnet 102 is formed into a generally cylindrical shape that is arranged coaxially with the feeder probe 101. The front of the magnet 102 is arranged on the same plane as the front of the feeder probe 101 and protrudes to the front side.

[0106] The feeder position sensor 105 is disposed on the lower part of the rear side (first surface) of the sensor substrate 95 and positioned in front of the feeder probe rod 101. Specifically, the magnet 102 is positioned facing the feeder position sensor 105 along the axial direction of the feeder probe rod 101. Furthermore, viewed from an oblique direction, the feeder position sensor 105 is positioned to overlap with the hopper housing 62. Like the rod position sensor 94, the feeder position sensor 105 is a magnetic sensor configured as a Hall element and is electrically connected to the control unit 20. Thus, the feeder position sensor 105 is configured to output a detection signal corresponding to the magnetic flux density of the magnet 102 to the control unit 20, which detects the approach position of the feeder probe rod 101 based on the detection signal from the feeder position sensor 105.

[0107] (Regarding the operation of the insertion machine 10) Next, the operation of the insertion machine 10 will be explained. In the non-operating state of the insertion machine 10, the push rod unit 81 is positioned in its initial position, and the lower end of the push rod 90 protrudes further downward than the blade guide 32 of the injection section 34. Furthermore, in this state, the magnet 93 of the insertion depth adjustment mechanism 80 is positioned further downward than the rod position sensor 94, and the control unit 20 detects the initial position of the push rod 90 based on the detection signal from the rod position sensor 94. Additionally, the control unit 20 detects the inactivity of the trigger 24 based on the output signal of the trigger switch.

[0108] Furthermore, when the control unit 20 detects the initial position of the push rod 90 or the non-operation of the trigger 24, it stops (disables) the drive of the motor 52. Therefore, in the non-operational state of the driver 10, the drive of the motor 52 is stopped. Additionally, in this state, the pinion pin 57 engages with the rack portion 48A, and the striking portion 44 is positioned in a standby position between the lower dead center and the upper dead center. Furthermore, in this standby position, the lower end of the striking portion 44 is positioned corresponding to the middle portion of the nail N in the vertical direction, and the nail N is not supplied into the injection path 32C.

[0109] Furthermore, the control unit 20 drives the motor 52 when it detects the allowable position of the push rod unit 81 and the operation of the trigger 24. Specifically, when the punching machine 10 is pushed downward (towards the material W being punched), the push rod unit 81 moves upward from its initial position against the force applied by the push spring 89. As a result, the detection slider 92 moves upward together with the push rod unit 81. Moreover, when the push rod unit 81 reaches the allowable position, the magnet 93 and the rod position sensor 94 are arranged facing each other in the front-rear direction, and the control unit 20 detects the allowable position of the push rod unit 81. In addition, the control unit 20 detects the operation of the trigger 24 based on the output signal from the trigger switch.

[0110] When driven by motor 52, pinion 56 rotates under the driving force of motor 52, and striking part 44 rises to top dead center. Furthermore, at top dead center of striking part 44, the engagement between pinion pin 57 and rack part 48A is released. In this state, the lower end of drive blade 48 is positioned higher than nail N, and nail N is supplied into injection path 32C. Moreover, striking part 44 descends to bottom dead center due to pressure in pressure chamber 42B, striking nail N downwards. Thus, nail N is ejected downwards from injection part 34 and driven into the driven material W.

[0111] After the nail is driven into the material W in the N direction, the control unit 20 also drives the motor 52. Therefore, the pinion pin 57 engages with the rack part 48A again, and the striking part 44 rises from the lower dead center and is positioned in the standby position. Furthermore, a position sensor (not shown) that detects the vertical position of the striking part 44 is connected to the control unit 20. Based on the output signal from the position sensor, the control unit 20 detects the standby position of the striking part 44. Moreover, when the striking part 44 is detected to have reached the standby position, the control unit 20 stops the motor 52.

[0112] (Effects) Next, while explaining the operation of the anti-dry-shooting mechanism 100, the function and effects of this embodiment will also be explained.

[0113] When the number of nails N loaded in the hopper 60 exceeds the specified number, the feeder 64 is separated from the injection section 34 on the opposite side in the inclined direction via the nails N. Specifically, as Figure 13 As shown, the pressing part 64A of the feeder 64 is separated from the rear end of the feeder detection rod 101, which is positioned in the separated position, on the opposite side in an inclined direction. Therefore, the control unit 20 detects the separated position of the feeder detection rod 101 based on the detection signal from the feeder position sensor 105. That is, the control unit 20 detects that the remaining amount of nails N in the hopper 60 is not below a predetermined number, and nails N are loaded into the hopper 60. Therefore, the control unit 20 puts the driver 10 into an operating-allowed state.

[0114] Each time the injection machine 10 operates, when nails N are supplied to the injection section 34, the feeder 64 moves to one side of the tilting direction by the force applied by the force spring. Furthermore, if the remaining amount of nails N in the hopper 60 is less than a predetermined number, the feeder 64 is positioned in the prohibited position. At this time, the pressing part 64A of the feeder 64 abuts against one end of the feeder detection rod 101, and moves further to one side of the tilting direction from the abutting position. Thus, as... Figure 12As shown, the feeder detection rod 101 moves forward against the force applied by the return spring 103 and is positioned in a close proximity position. Therefore, the magnet 102 approaches the feeder position sensor 105. As a result, the control unit 20 detects the close proximity position of the feeder detection rod 101 based on the detection signal from the feeder position sensor 105. In other words, the control unit 20 detects that the remaining amount of nails N in the hopper 60 is less than a predetermined number. Therefore, the control unit 20 puts the driver 10 into an operation-prohibited state. That is, it prohibits the driving of the motor 52. Therefore, dry-firing in the driver 10 can be prevented.

[0115] As explained above, in the punching machine 10 of this embodiment, a feeder 64 is movably provided in the hopper housing 62. By moving the feeder 64 to one side in the tilting direction, the nails N filled in the hopper housing 62 are supplied to the injection section 34. Furthermore, when the remaining amount of nails N in the hopper housing 62 is less than a predetermined number, the feeder 64 is positioned in the prohibited position.

[0116] Here, the anti-dry-firing mechanism 100 includes a feeder position sensor 105 that detects the position of the feeder 64 in the hopper 60. Specifically, the feeder position sensor 105 is configured to detect movement of the feeder 64 toward a prohibited position. Furthermore, when the control unit 20 detects the prohibited position of the feeder 64 based on the detection signal from the feeder position sensor 105, it disables the drive of the motor 52. This prevents the striking unit 44 from firing dry. Moreover, the feeder position sensor 105 is provided in the injection unit 34. Therefore, for example, compared to a structure where the feeder position sensor 105 is provided in the hopper housing 62 of the hopper 60, it is not necessary to wind the wire connecting the control unit 20 and the feeder position sensor 105 to the outside of the housing 14. Therefore, compared to the aforementioned structure, a simpler structure can be used to prevent dry firing of the nail N.

[0117] Furthermore, the feeder position sensor 105 is positioned at a location that overlaps with the feeder 64 when viewed from an inclined direction. Specifically, the feeder position sensor 105 is positioned on one side of the inclined direction relative to the feeder 64. Therefore, compared to a structure where the feeder position sensor 105 is positioned at a location that does not overlap with the feeder 64 when viewed from an inclined direction, the dry-fire prevention mechanism 100 can be miniaturized, and further, the injection unit 34 can be miniaturized. Moreover, the inclined direction corresponds to the second direction of the present invention.

[0118] Furthermore, a feeder detection rod 101 is provided in the injection section 34 (blade guide 32), and the feeder detection rod 101 is configured to move relative to the feeder position sensor 105 in the direction of contact / separation. The feeder detection rod 101 is positioned at a separation position relative to the feeder position sensor 105 via a return spring 103. Moreover, when the feeder 64 moves to the prohibited position, the feeder detection rod 101 moves to a proximity position close to the feeder position sensor 105 via the feeder 64, and the feeder position sensor 105 detects the prohibited position of the feeder 64. Therefore, for example, compared to a structure that omits the feeder detection rod 101 and instead places a magnet 102 on the feeder 64 and detects the proximity of the feeder 64 by the feeder position sensor 105, the exposure of the feeder position sensor 105 to the outside can be suppressed. That is, the exposure of the feeder position sensor 105 to the outside can be suppressed by the feeder detection rod 101. This improves the protective performance of the feeder position sensor 105. Furthermore, in a configuration where the feeder detection rod 101 is omitted and a magnet 102 is placed on the feeder 64, and the feeder position sensor 105 detects the approach of the feeder 64, the presence of the relatively large components, the hopper housing 62 and the head 30, between the feeder position sensor 105 and the feeder 64 results in larger manufacturing tolerances, potentially making it impossible to accurately detect the approach of the feeder 64 using the feeder position sensor 105. In contrast, according to this embodiment, since only the smaller components, the rod receiving portion 32E and the head 30, exist between the feeder position sensor 105 and the feeder detection rod 101, the manufacturing tolerances are smaller, and the feeder position sensor 105 can accurately detect the approach of the feeder 64.

[0119] Furthermore, by configuring the feeder 64 and the feeder probe 101 as separate components, it is not necessary to insert the feeder 64 into the injection section 34 when the feeder 64 moves to the prohibited position. As a result, the feeder 64 can be formed into a simple shape, which also helps to miniaturize the feeder 64.

[0120] Furthermore, a driving depth adjustment mechanism 80 is provided in the injection section 34 to adjust the driving depth of the nail N into the material W being driven. The driving depth adjustment mechanism 80 is configured to include a push rod unit 81 that is movable in the vertical direction, and a rod position sensor 94 that detects the vertical position of the push rod unit 81. Moreover, when the control unit 20 detects the initial position of the push rod unit 81 by the rod position sensor 94, it enters a state that prohibits the driving of the motor 52 and prohibits the striking part 44 from striking the nail N. On the other hand, when the control unit 20 detects the allowable position of the push rod unit 81 by the rod position sensor 94, it enters a state that allows the driving of the motor 52 and allows the striking part 44 to strike the nail N. Thus, the driving depth adjustment mechanism 80 for adjusting the driving depth of the nail N into the material W being driven, and the dry-shot prevention mechanism 100 for detecting the remaining amount of the nail N and preventing dry-shot, can be concentrated in the injection section 34.

[0121] Furthermore, the rod position sensor 94 of the injection depth adjustment mechanism 80 and the feeder position sensor 105 of the feeder 64 of the dry-shot prevention mechanism 100 are mounted on the sensor substrate 95. That is, the sensor substrate 95 is configured as a shared substrate for the rod position sensor 94 and the feeder position sensor 105. As a result, compared with the structure in which the rod position sensor 94 and the feeder position sensor 105 are mounted on different substrates, the injection section 34 can be miniaturized, and the injection section 34 can be formed into a simplified structure.

[0122] Furthermore, the feeder position sensor 105 is located behind the sensor substrate 95, and the rod position sensor 94 is located in front of the sensor substrate 95. This allows the positions of the feeder 64 and the push rod 90 to be detected on both sides of the sensor substrate 95 in the thickness direction. Therefore, a highly efficient configuration structure can be achieved in the injection section 34 relative to the penetration depth adjustment mechanism 80 and the dry-shot prevention mechanism 100.

[0123] Furthermore, a probe slider 92 is connected to the push rod unit 81, and the probe slider 92 is configured to move integrally with the push rod unit 81 in the vertical direction. Moreover, the rod position sensor 94 detects the movement of the probe slider 92 towards an allowed position. Furthermore, the vertical movement of the probe slider 92 is guided by the guide rail 30E of the ejection section 34. Specifically, the guide rail 30E has a pair of left and right track portions 30E2, and a portion of the probe slider 92 is disposed between the pair of track portions 30E2. Thus, the guide rail 30E can suppress the wobbling of the probe slider 92 in the left and right direction. Therefore, the position of the push rod unit 81 can be detected accurately by the rod position sensor 94. Furthermore, the left and right direction corresponds to the third direction of the present invention.

[0124] Furthermore, a guide groove 30E1 is formed in the guide rail 30E. The probe slider 92 engages with the guide groove 30E1 in the front-back direction (the thickness direction of the sensor substrate 95), restricting the movement of the probe slider 92 in the front-back direction. Thus, the wobbling of the probe slider 92 in the front-back direction can be suppressed by the guide rail 30E. Therefore, the position of the push rod unit 81 can be detected accurately by the rod position sensor 94.

[0125] Furthermore, in the insertion depth adjustment mechanism 80, the lower end of the adjuster 86 is inserted into the connecting groove 92B of the probe slider 92, and the groove 86A of the adjuster 86 engages with the connecting groove 92B in the vertical direction. Thus, the probe slider 92 and the adjuster 86 are integrally connected in the vertical direction, and the adjuster 86 is configured to rotate relative to the probe slider 92. Therefore, the relative position of the stop plate 88 and the push rod 90 in the vertical direction can be adjusted by the adjuster 86, and the probe slider 92 and the adjuster 86 are integrally connected in the vertical direction.

[0126] Furthermore, in this embodiment, when the remaining number of nails N is less than a specified number, the feeder 64 is positioned in the prohibited position, and the dry-hitting prevention mechanism 100 prevents the striking part 44 from dry-hitting. However, the remaining number of nails N in the prohibited position of the feeder 64 can be arbitrarily set.

Claims

1. A work machine, comprising: The main body has an injection section from which a stop element is supplied; The striking part strikes the stop held by the ejection part by moving to one side in the first direction; The hopper section has a housing and a feeder. The housing is assembled to the injection section and houses the stop. The feeder is disposed in the housing in such a way that it can move in a second direction intersecting the first direction and moves to one side of the second direction, thereby supplying the stop to the injection section. The feeder detection unit detects the position of the feeder; The pressing part is configured to be movable in the first direction; The pressure detection unit is configured to detect the position of the pressure unit in the first direction; as well as The control unit uses the detection results from the feeder detection unit and the pressing detection unit to control the driving of the striking unit. The ejection section has an ejection path through which the striking part and the stop member pass when the striking part strikes the stop member. At least a portion of the pressing part is located on one side of the second direction, which is further away from the injection path. At least a portion of the feeder is located on the opposite side of the second direction from the injection path. The feeder detection unit and the pressing detection unit are housed in a shared receiving unit provided in the injection unit. The receiving unit is located at a position offset upward from the injection path by a third direction, which is orthogonal to the first direction and intersects with the second direction.

2. The work machine according to claim 1, wherein, The feeder detection unit is positioned at a location that overlaps with the feeder when viewed from the second direction.

3. The work machine according to claim 2, wherein, When the feeder detection unit detects that the feeder is in a prohibited position, the control unit prevents the striking unit from striking. In the injection section, the feeder detection section is configured to be movable relative to the feeder detection section in the direction of contact / separation. The feeder detection unit is positioned at a separation position where it is separated from the feeder detection unit by a force-applying member, and the feeder moves to the prohibited position, thereby moving to a proximity position close to the feeder detection unit. The feeder detection unit detects that the feeder is in the prohibited position by detecting that the feeder being detected is in the approach position.

4. The work machine according to claim 3, wherein, The feeder detection unit is disposed between the feeder and the feeder detection unit. As the feeder moves toward the prohibited position, the feeder presses the feeder detection section, thereby moving the feeder detection section from the separated position toward the approach position.

5. The operating machine according to any one of claims 1 to 4, wherein, The control unit When the detection signal from the pressing detection unit detects that the pressing part is in an initial position protruding from one side of the ejection part in the first direction, the striking part is prevented from striking. When the pressing part is detected to be in a permissible position from the initial position to the other side of the first direction based on the detection signal of the pressing detection part, the striking part is permitted to strike.

6. The operating machine according to any one of claims 1 to 4, wherein, The feeder detection unit and the pressing detection unit are disposed on the detection substrate.

7. The work machine according to claim 6, wherein, The feeder detection unit is disposed on the first side of the detection substrate, and the pressing detection unit is disposed on the second side of the detection substrate.

8. The work machine according to claim 5, wherein, The pressing part is connected to a pressing detection part in a manner that allows it to move integrally in the first direction. The pressing detection part detects the movement of the pressing detection part toward the allowed position. A guide portion is provided in the ejection portion, which guides the movement of the pressing detection portion in the first direction.

9. The work machine according to claim 8, wherein, The guide section has a pair of track sections. The pair of track portions extend in the first direction and are arranged facing each other in the third direction. A portion of the press-detected portion is disposed upwards between the pair of track portions.

10. The work machine according to claim 8, wherein, A magnet is provided in the pressed detection part. The pressure detection unit is a magnetic sensor that detects the proximity of the magnet to determine the permissible position of the pressure unit.

11. The work machine according to claim 8, wherein, The pressing part is configured to include: The first pressing part comes into contact with the material being driven in when the stop member strikes it. The second pressing part, in the initial position, abuts against the ejection part, preventing the pressing part from moving to one side in the first direction; and Adjust the components to change the relative positions of the first pressing part and the second pressing part in the first direction. The pressing detection part is connected to the adjustment member in a manner that allows it to move integrally in the first direction.

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