Insertion tool

Abstract

When illuminating the ejection portion from behind the silo in the driving direction, the silo becomes an obstacle and a shadow is easily generated around the ejection portion. Therefore, it is difficult to properly illuminate the ejection portion. On the other hand, when the lighting lamp is set at a position that can suppress the shadow generated around the ejection portion, the wiring from the power supply to the lighting lamp becomes complicated and the assembly is poor. Therefore, in the past, a driving tool with good assembly and capable of properly illuminating the ejection portion was required. The driving tool (1) has an impact mechanism (40) for impacting a driving piece (T) and a main body (10) having the impact mechanism (40). The driving tool (1) also has an ejection portion (4) for ejecting the driving piece impacted by the impact mechanism (40). A lighting fixture (55) is provided on the main body (10). A light guide (54) is provided in the area from the lighting fixture (55) to the ejection portion (4).

Description

Technical Field

[0001] The present invention relates to a driving tool for driving a driving member such as a nail, a staple or the like into wood or the like. Background Art

[0002] The driving tool has an impact mechanism for ejecting a driven piece. The driven piece is supplied to a driving passage provided in front of the impact mechanism in a driving direction. A silo filled with a plurality of driven pieces is connected to the side of the driving passage. The driven pieces are automatically supplied one by one from the silo to the driving passage in conjunction with the driving of the impact mechanism. The driven piece is ejected by the impact mechanism from an ejection portion in front of the driving direction of the driving passage. In this way, the driven piece can be driven into wood or the like.

[0003] In order to improve the visibility of the position of the driven part, a driving tool with a lighting lamp illuminating the emission part and its surroundings has been provided in the past. The driving tool disclosed in Patent Document 1 has a lighting lamp in front of the driving direction of the silo. A battery as a power source is installed on the main body of the driving tool. Wiring that electrically connects the battery to the lighting lamp is provided inside the main body and on the side of the silo. When wiring along the side of the silo, in order to prevent disconnection, etc., it is necessary to cover the wiring all around for protection. Therefore, the structure of the silo becomes complicated and the man-hours for assembly work increase. In addition, the silo has a door that can be opened and closed relative to the box-shaped silo body. Therefore, it is necessary to run the wiring while avoiding the door and the vicinity of the door. Therefore, wiring along the side of the silo body is generally difficult.

[0004] The driving tool disclosed in Patent Document 2 has a lighting lamp on the front side of the main body located behind the material bin in the driving direction. The lighting lamp illuminates the ejection part and its surroundings from behind the material bin in the driving direction. The lighting lamp receives power supply from a battery installed on the side opposite to the main body.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2009-202287

[0006] Patent Document 2: Japanese Patent Application Publication No. 2012-166309

[0007] However, on the one hand, when the ejection part is illuminated from the rear of the material bin in the driving direction, the material bin becomes an obstacle and a shadow is easily formed around the ejection part. Therefore, it is difficult to properly illuminate the surroundings of the ejection part. On the other hand, when the lighting lamp is set at a position that can suppress the shadow formed around the ejection part, the wiring from the power supply to the lighting lamp becomes complicated and the assembly is poor. Summary of the invention

[0008] Therefore, conventionally, there has been a need for a driving tool that has good assemblability and can appropriately irradiate the periphery of the injection portion.

[0009] In one embodiment of the present disclosure, the driving tool has an impact mechanism for impacting the driven part, and a main body having the impact mechanism. The driving tool also has an ejection part for ejecting the driven part impacted by the impact mechanism. A lighting fixture is provided in the main body. A light guide is provided in the area from the lighting fixture to the ejection part.

[0010] Therefore, the wiring for supplying power to the lighting fixture can be properly arranged in the main body. Therefore, the lighting fixture and the wiring can be easily assembled in the main body. Moreover, the light emitted by the lighting fixture is guided to the vicinity of the emission portion by the light guide. Therefore, the surroundings of the emission portion can be widely illuminated from the top of the light guide. Furthermore, the diffusion of light and the reduction of the light amount in the area from the lighting fixture to the emission portion can be prevented.

[0011] In another embodiment, the driving tool has a hopper for supplying the driving member to the impact mechanism. The lighting fixture is arranged in front of the main body in the driving direction. The light guide is arranged in the hopper. Therefore, the light guide can connect the light source of the lighting fixture to the emission part by the shortest path or the substantially shortest path. Therefore, the loss of light reaching the emission part can be reduced.

[0012] In another embodiment, the silo is box-shaped and extends in the driving direction and in a direction perpendicular to the driving direction. The silo has a silo main body for accommodating the driving parts, and a door that can be opened and closed relative to the silo main body. The light guide is provided on the door. For example, a user holding the driving tool with his right hand observes the position of the driving part from the left to the right of the driving tool. Therefore, a door is provided on the left side of the silo main body in consideration of the case where the driving tool is held with the right hand. Therefore, the light passing through the light guide irradiates the surroundings of the emission part from the left to the right. Therefore, the user's line of sight and the irradiation direction of the light become substantially the same direction. As a result, the visibility of the position of the driving part in the driven part is improved.

[0013] In another embodiment, the silo is box-shaped and extends in the driving direction and in a direction perpendicular to the driving direction. The silo has a silo body for accommodating the driving parts, and a door that can be opened and closed relative to the silo body. The light guide is provided on the silo body. Therefore, the light guide is provided on the silo body fixed to the main body. Therefore, the position of the light guide relative to the main body is stable. As a result, the irradiation direction of the light irradiated from the top of the light guide is stable.

[0014] In another embodiment, the light guide extends along the periphery of the silo that supplies the impact member to the impact mechanism. Therefore, the light guide is adjacent to the periphery of the silo in a longer area along the extension direction. Therefore, the light guide is stably supported on the silo. As a result, the irradiation direction of the light irradiated from the lighting fixture through the light guide is stable.

[0015] In another embodiment, the light guide is formed in the form of a single component with at least part of the silo. Therefore, the number of components can be reduced. In addition, the assembly process can be reduced. In addition, it is not necessary to install the mounting components around the light guide. This can make the light guide compact around.

[0016] In another embodiment, the light guide has an irradiation portion at the top end in front of the irradiation direction. The irradiation portion has an inclined surface that is inclined in a direction perpendicular to the surface toward the emitting portion. Therefore, light is irradiated from the irradiation portion toward the direction perpendicular to the surface of the inclined surface. Therefore, light is concentrated near the emitting portion. As a result, the irradiation efficiency of the emitting portion is improved.

[0017] In another embodiment, the driving tool has a battery mounting portion that can detach a battery as a power source of the impact mechanism. The lighting device is supplied with power from the battery. Therefore, it is possible to use the battery for operating the impact mechanism as a power source without separately providing a power source for the lighting device.

[0018] In another embodiment, the lighting fixture switches illumination automatically in conjunction with the driving of the impact mechanism. Therefore, the lighting fixture automatically lights up, for example, before the driving of the driven part, and turns off after the driving of the driven part. Therefore, the user can use the driving tool without switching the lighting fixture between the on and off states. This improves the operability of the driving tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the driving tool according to the first embodiment.

[0020] Figure 2 It is a three-dimensional view of the driving tool when the silo is in the open state.

[0021] Figure 3 is a side view of the driving tool.

[0022] Figure 4 It is a top view of the driving tool.

[0023] Figure 5 is a longitudinal section view of the driving tool, and is Figure 4 VV line section view in the figure.

[0024] Figure 6 This is a stereoscopic view of the driving tool as viewed from the left rear.

[0025] Figure 7 This is a stereoscopic view of the driving tool as viewed from the right rear side.

[0026] Figure 8 This is a perspective view of the driving tool according to the second embodiment as seen from the right rear side.

[0027] Fig. 9 This is a perspective view of the driving tool according to the second embodiment as viewed from the left rear side.

[0028] Fig.10 It is a perspective view of the driving tool of the first comparative example.

[0029] Fig.11 It is a perspective view of the driving tool of the second comparative example.

[0030] Description of Reference Numerals

[0031] T… driving part; W… driven part; L… irradiation area; 1… driving tool (cordless nail gun); 2… driving head; 2a… driving passage; 3… impact driver; 3a… coupling pin; 4… ejection part; 4a… ejection port; 5… working arm; 6… micro switch (for detecting the operation of the contact arm); 7… micro switch (for detecting the retracted end position of the driver base); 10… main body; 11… main body shell; 12… motor housing; 1 3…Electric motor; 13a…Motor shaft; 14…Planetary gear set; 15…Output gear; 16…Handle; 17…Switch lever; 18…Switch body; 20…Power supply; 21…Battery mounting; 22…Battery pack; 23…Controller; 30…Driver return mechanism; 31…Idle gear; 31a…Support shaft; 32…Reset gear (drive gear); 32a…Support shaft; 33…First engaging portion; 34…Second engaging portion; 35…First engaging bearing receiving portion; 36…second engagement receiving portion; 40…impact mechanism; 41…support shaft portion; 42…actuator base portion; 43…impact spring; 44…holding sleeve; 45…advance end damper; 51…bin; 52…bin body; 52a…guide rail; 52b…guide rail groove; 53…door; 53a…guide rail groove; 53b…guide rail; 54…light guide; 54a…light entry portion; 54b…irradiation portion; 54c…inclined surface; 55…lighting device (LE D); 56…wiring; 60…driving tool; 61…silo; 62…silo body; 63…door; 64…light guide; 64a…light entrance; 64b…irradiation portion; 64c…inclined surface; 65…lighting fixture (LED); 70…driving tool; 71…silo; 72…silo body; 73…door; 74…lighting fixture (LED); 80…driving tool; 81…silo; 82…silo body; 84…lighting fixture (LED). DETAILED DESCRIPTION

[0032] based on Figure 1 to Figure 7 , the driving tool 1 involved in the first embodiment of the present disclosure is described. Figure 1As shown, in the present embodiment, a mechanical spring-type and rechargeable straight nail gun (Japanese: 仕上げ釘打機), also known as a powder actuated tool, is exemplified as the driving tool 1. The driving tool 1 uses the acting force of a compression coil spring as the impact force (driving force) for driving the driving piece T into the workpiece W (refer to Figure 5 ). In the following description, the driving direction of the driving piece T is the front side, the direction opposite to the driving direction is the rear side, and for the left and right directions, the user is taken as the reference.

[0033] As Figure 1 shown, the driving tool 1 has a main body portion 10 armored by a main body housing 11. A motor housing portion 12 is provided extending downward at the front portion of the main body portion 10. The motor housing portion 12 houses an electric motor 13 as a driving source. A handle portion 16 for the user to hold is provided extending downward at the rear portion of the main body portion 10. The motor housing portion 12 and the handle portion 16 extend substantially parallel to each other. A power supply portion 20 extending in the front-rear direction is provided across the lower portion of the motor housing portion 12 and the lower portion of the handle portion 16. Therefore, the main body housing 11, the motor housing portion 12, the power supply portion 20, and the handle portion 16 form an annular shape.

[0034] As Figure 5 shown, a driving machine head 2 for guiding the impact driver 3 in the driving direction is provided at the front portion of the main body portion 10. The driving machine head 2 has a driving passage 2a extending in the front-rear direction. A shooting portion 4 is provided at the front end of the driving machine head 2. A shooting port 4a communicating with the driving passage 2a is opened at the front end of the shooting portion 4. The impact driver 3 advances in the driving passage 2a, thereby impacting and shooting out the driving piece T from the shooting port 4a. One driving piece T shot out from the shooting port 4a is driven into the workpiece W.

[0035] Figure 5 The driving machine head 2 shown is provided so as to be displaceable in a certain range in the front-rear direction with respect to the main body housing 11. The driving operation is performed only in a state where the shooting portion 4 is pressed against the workpiece W and the driving machine head 2 is relatively retracted with respect to the main body portion 10. Therefore, the driving machine head 2 also functions as a contact arm that is operated to allow the driving operation. A working arm portion 5 is coupled to the rear portion of the driving machine head 2 that faces the front portion of the main body housing 11. The working arm portion 5 is displaced in the front-rear direction integrally with the driving machine head 2.

[0036] As Figure 5As shown in the figure, a micro switch 6 is arranged behind the working arm 5 and in front of the main body housing 11. When the driver head 2 retreats relative to the main body housing 11, the micro switch 6 is pressed by the working arm 5 and turned on. The driving operation is performed with the state of the micro switch 6 for detecting the on operation being turned on as a condition. A micro switch 7 for detecting the retreat end position of the impact driver 3 is arranged at the rear of the main body housing 11. The micro switch 7 for detecting the retreat end will be described later.

[0037] like Figure 1 , 5 As shown, a hopper 51 is combined with the driver head 2. The hopper 51 is a box-shaped rectangle that is long in the up-down direction and extends in the driving direction. The hopper 51 extends downward from the lower surface of the driver head 2 along the front side of the motor housing 12. The hopper 51 can be loaded with plate-shaped connected driving parts in which a plurality of driving parts T are temporarily fixed in parallel to each other. The hopper 51 is a rectangular hopper that can accommodate connected driving parts in a flat plate shape extending in the up-down direction, and is a so-called straight plate type hopper. The loaded connected driving parts are sent to both sides of the driver head at intervals in conjunction with the driving action of the main body 10. In this way, the driving parts T are supplied one by one into the driving passage 2a. The hopper 51 will be described in detail later.

[0038] like Figure 5 As shown, a trigger-type switch lever 17 is provided at the front upper part of the handle portion 16. That is, the switch lever 17 is provided inside the ring shape formed by the main body housing 11, the motor housing portion 12, the power supply portion 20 and the handle portion 16. The handle portion 16 is provided with a switch body 18 behind the switch lever 17. When the driver head 2 is retracted to the on position (the micro switch 6 is on), the switch lever 17 is pressed with the fingertips of the hand holding the handle portion 16. As a result, the switch body 18 is turned on and the electric motor 13 is started. If the operation of pressing the switch lever 17 is stopped, the switch body 18 is turned off. The electric motor 13 automatically stops after the switch body 18 is turned off, or even if the switch lever 17 is kept pressed, the driver base portion 42 described later returns to the retracted end (initial position).

[0039] like Figure 5 As shown in the figure, a battery mounting portion 21 is provided on the lower surface side of the power supply portion 20. A battery pack 22 is mounted on the battery mounting portion 21. The battery pack 22 mainly supplies power as a power source for the electric motor 13. Although it cannot be seen in detail in the figure, a pair of left and right rails for mechanically connecting the battery pack 22 and positive and negative terminal plates for electrical connection are arranged on the battery mounting portion 21. A controller 23 containing a control circuit substrate for controlling the operation of the electric motor 13 and a power circuit substrate is accommodated inside the battery mounting portion 21.

[0040] Figure 1The battery pack 22 shown is a lithium ion battery with an output voltage of 18V. The battery pack 22 is a slide-mounted type that can be removed by sliding it backward relative to the battery mounting portion 21, and can be installed by sliding it forward. The battery pack 22 can be repeatedly used by being removed from the battery mounting portion 21 and charged with a separately prepared charger. The battery pack 22 can also be used as a power source for other electric tools such as a rechargeable screwdriver and a cutting tool.

[0041] like Figure 5 As shown, the main body 10 is provided with a driver return mechanism 30 and an impact mechanism 40 in the main body housing 11. The impact mechanism 40 includes a driver seat 42 for supporting the impact driver 3, and an impact spring 43 for urging the driver seat 42 in the driving direction (forward). A compression coil spring having a relatively large wire diameter and winding diameter is used for the impact spring 43. The impact driver 3 is a long and thin plate, and is always inserted into the driving passage 2a in a state where it can move forward and backward without shaking. The rear portion of the impact driver 3 is connected to the upper portion of the driver seat 42 via a connecting pin 3a.

[0042] like Figure 5 As shown, a round rod-shaped support shaft portion 41 is provided in the main body housing 11. The support shaft portion 41 extends almost over the entire length from the front to the rear of the main body housing 11. An impact spring 43 is sandwiched around the support shaft portion 41. The driver seat portion 42 is supported in a manner that allows it to slide freely in the front and rear directions relative to the main body housing 11. In addition, the driver seat portion 42 is supported in a state where the displacement around the axis of the support shaft portion 41 is restricted. The impact spring 43 is sandwiched between the driver seat portion 42 and the rear portion of the main body housing 11 in the front-to-back direction. The driver seat portion 42 and the impact driver 3 are urged in the driving direction by the impact spring 43. With the force of the impact spring 43, a driven part T supplied to the driving passage 2a is impacted by the impact driver 3 and driven out from the ejection port 4a.

[0043] like Figure 5 As shown, a forward end damper 45 is provided at the front of the main body housing 11. The forward end damper 45 has a cylindrical shape arranged around the support shaft portion 41. The forward end damper 45 absorbs the impact of the driver base portion 42 moving in the driving direction at the forward end position. A cylindrical retaining sleeve 44 is arranged at the rear of the main body housing 11. The retaining sleeve 44 is arranged on the rear inner peripheral side of the impact spring 43. The retaining sleeve 44 prevents biting caused by bending and deformation of the impact spring 43 in a reduced state.

[0044] like Figure 5As shown in the figure, the first engagement receiving portion 35 and the second engagement receiving portion 36 are provided on the lower surface of the driver seat portion 42 of the impact mechanism 40 so as to protrude downward. Although it cannot be seen in detail in the figure, the first engagement receiving portion 35 and the second engagement receiving portion 36 extend a predetermined length in the left-right direction. The first engagement receiving portion 35 is arranged at a certain distance behind the second engagement receiving portion 36. The protrusion amount of the first engagement receiving portion 35 protruding downward is greater than the protrusion amount of the second engagement receiving portion 36 protruding downward. The first engagement receiving portion 35 and the second engagement receiving portion 36 move forward and backward integrally with the driver seat portion 42.

[0045] like Figure 5 As shown, the electric motor 13 is accommodated in the motor accommodation portion 12 with the motor shaft 13a extending vertically. A planetary gear set 14 and an output gear 15 are arranged along the motor shaft 13a above the electric motor 13. The rotation output of the electric motor 13 is decelerated by the planetary gear set 14 and output to the output gear 15.

[0046] like Figure 5 As shown, the driver return mechanism 30 has a reset gear (drive gear) 32 and an idler gear 31. The reset gear 32 and the idler gear 31 are supported at the lower part of the main body housing 11 so as to be rotatable around a support shaft 32a and a support shaft 31a extending up and down, respectively. The support shaft 32a is arranged to be more rearward than the support shaft 31a. The idler gear 31 meshes with both the output gear 15 and the reset gear 32 that output the rotational output of the electric motor 13. The idler gear 31 is an idle gear that transmits the rotational output of the output gear 15 to the reset gear 32 without increasing or decreasing the speed. Therefore, the reduction ratio of the reset gear 32 is determined by the gear ratio between itself and the output gear 15. In addition, because there is an idler gear 31 sandwiched therebetween, the rotation direction of the reset gear 32 is the same direction as that of the output gear 15.

[0047] like Figure 5 As shown, the first engaging portion 33 and the second engaging portion 34 are provided on the upper surface of the reset gear 32. The first engaging portion 33 and the second engaging portion 34 protrude upwards respectively with cylindrical protrusions of almost the same diameter. The protrusion amount of the first engaging portion 33 protruding upwards is about half of that of the second engaging portion 34. That is, the first engaging portion 33 protrudes at a height that can be engaged with the first engaging receiving portion 35 and not engaged with the second engaging receiving portion 36. The second engaging portion 34 protrudes at a height that can be engaged with both the first engaging receiving portion 35 and the second engaging receiving portion 36. The first engaging portion 33 and the second engaging portion 34 are staggered in the rotation direction with the support shaft 32a as the center. The interval between the first engaging portion 33 and the second engaging portion 34 in the rotation direction is appropriately set according to the time point of engagement with the first engaging receiving portion 35 or the second engaging receiving portion 36.

[0048] The operation of the impact driver 3 caused by the impact mechanism 40 and the driver return mechanism 30 will be described. Figure 5 The state in which the impact driver 3 reaches the forward end position by the force of the impact spring 43 and the driving member T is just driven into the driven member W by the impact driver 3 is shown. The electric motor 13 is started by turning on the micro switch 6 and pulling the switch rod 17 to turn on the switch body 18. The micro switch 6 is turned on by bringing the driver head 2, which is a contact arm, into contact with the driven member W to cause the driver head 2 to retreat. When the micro switch 6 and the switch body 18 are turned on, power starts to be supplied to the electric motor 13. As a result, the driver return mechanism 30 starts to operate.

[0049] When the electric motor 13 is started, the reset gear 32 starts to rotate. The rotation of the reset gear 32 causes the first engagement portion 33 to be pressed against the front surface of the first engagement receiving portion 35. Therefore, the driver seat portion 42 integrated with the first engagement receiving portion 35 is displaced rearward against the urging force of the impact spring 43. As a result, the impact driver 3 integrated with the driver seat portion 42 is returned to the rearward end position side.

[0050] And if the reset gear 32 rotates, the first engaging portion 33 leaves the front surface of the first engaging receiving portion 35. On the other hand, the second engaging portion 34 is pressed against the front surface of the second engaging receiving portion 36. Therefore, the driving source of the return action formed by the rotation of the reset gear 32 is transferred from the first engaging portion 33 to the second engaging portion 34. As a result, the second engaging receiving portion 36 and the driver seat portion 42 continue to retreat against the force of the impact spring 43.

[0051] When the driver base 42 reaches the retracted end position, the micro switch 7 is pressed by the retracted first engagement receiving portion 35 and turned on. After the micro switch 7 is turned on, the electric motor 13 is cut off from the power supply and stops. The reset gear 32 stops due to the stop of the electric motor 13. Therefore, the displacement of the first engagement portion 33 and the second engagement portion 34 stops. As a result, the driver base 42 and the impact driver 3 stop at the retracted end position (initial position).

[0052] When the driver base 42 and the impact driver 3 are in the initial position, the driver head 2 contacts the driven workpiece W to turn on the micro switch 6, and the switch rod 17 is pulled to turn on the switch body 18. As a result, the electric motor 13 is started, and the reset gear 32 rotates. As a result, the second engagement portion 34 is separated from the second engagement receiving portion 36. Therefore, the power for the driver base 42 to return to the retreat end position side against the force of the impact spring 43 is cut off. Therefore, the driver base 42 advances due to the force of the impact spring 43, and the impact driver 3 advances in the driving passage 2a. In this way, the driven workpiece T in the driving passage 2a is impacted by the advancing impact driver 3 and driven into the driven workpiece W.

[0053] like Figure 1 , 3 As shown, a lighting fixture 55 is provided at the left front end of the main body 10. The lighting fixture 55 is provided at the lower part of the main body 10 connected to the motor housing portion 12. Therefore, the lighting fixture 55 is provided below the emission portion 4. The lighting fixture 55 includes, for example, a light emitting diode (LED) as a light source. The LED provided in the lighting fixture 55 is electrically connected to the battery pack 22 mounted on the battery mounting portion 21. The LED is supplied with power from the battery pack 22 and emits light. The lighting fixture 55 irradiates light toward the front.

[0054] exist Figure 3 2 , a wiring 56 for supplying power from the battery pack 22 to the lighting fixture 55 is schematically shown. The wiring 56 electrically connects the lighting fixture and the battery mounting portion 21 via the controller 23. For example, the wiring 56 is arranged from the power supply portion 20 and passes through the inside of the handle portion 16 and the inside of the main body housing 11. In this way, the wiring 56 can be appropriately arranged inside the main body housing 11, the handle portion 16, etc., which are generally included in the driving tool 1 without adding a new structure.

[0055] The lighting fixture 55, the battery pack 22, the controller 23, the switch body 18, etc. (see Figure 5 ) is electrically connected. If the user pulls the switch lever 17 to turn on the switch body 18, the lighting fixture 55 becomes turned on. The lighting fixture 55 that has become turned on is automatically lit by the power supplied from the battery pack 22. When the driver base 42 reaches the retracted end position due to the driver return mechanism 30, the micro switch 7 is turned on and the electric motor 13 stops. After the electric motor 13 stops, after a certain period of time, the controller 23 stops the power supply from the battery pack 22 to the lighting fixture 55. As a result, the lighting fixture 55 is automatically extinguished.

[0056] like Figure 1 , 2 As shown, the silo 51 has a box-shaped rectangular silo body 52 and a door 53 that can be opened and closed relative to the opening of the silo body 52. ​​The silo body 52 is a box-shaped body with an opening on the left side. Therefore, the door 53 is arranged on the left side of the silo body 52. ​​A guide rail 52a extending in the up-down direction is arranged at the rear of the opening of the silo body 52. ​​A guide rail groove 52b extending parallel to the guide rail 52a is arranged at the front of the opening of the silo body 52. ​​A guide rail groove 53a extending in the up-down direction is arranged at the rear of the door 53. A guide rail 53b extending parallel to the guide rail groove 53a is arranged at the front of the door 53.

[0057] like Figure 1 , 2As shown in FIG. 1 , the guide rail 52a and the guide groove 53a, and the guide groove 52b and the guide rail 53b are engaged with each other so as to be able to move up and down. Therefore, the door 53 can slide up and down along the guide rail 52a and the guide groove 52b. When the door 53 slides downward, the silo body 52 is opened and the driven piece T can be loaded (refer to FIG. 1 ). Figure 5 ). The silo body 52 is closed by sliding the door 53 to the upper closed position. The silo body 52 is formed of an opaque resin material. The door 53 is formed of a transparent resin material such as polycarbonate or acrylic. Therefore, the door 53 also serves as a punch T that can be confirmed from the outside to be accommodated in the silo body 52 (see Figure 5 ) window functions.

[0058] like Figure 3 As shown, a light guide 54 is provided on the left side (outer side) of the door 53. Like the door 53, the light guide 54 is a transparent resin material such as polycarbonate and acrylic, and is provided integrally with the door 53. The light guide 54 is in the shape of a rectangular column, and extends front and back along the outer side of the door 53. The light guide 54 is slightly inclined from the rear toward the front and upward. The light guide 54 has a light input portion 54a at the rear end and an irradiation portion 54b at the front end. The light input portion 54a of the light guide 54 is arranged to be more rearward than the rear end of the door 53. The irradiation portion 54b is arranged at approximately the same position as the front end of the door 53 in the front-to-back direction. In other words, the light guide 54 is provided in the area between the lighting device 55 and the emission portion 4 in the front-to-back direction.

[0059] like Figure 3 As shown, when the door 53 is in the closed position, the light input portion 54a is arranged in front of the lighting fixture 55. In this state, the light input portion 54a almost entirely covers the light emitting surface of the lighting fixture 55. Therefore, most of the light emitted by the lighting fixture 55 enters the light input portion 54a. The light incident from the light input portion 54a travels along the long side direction of the light guide 54. The light passing through the light guide 54 travels toward the irradiation portion 54b in front without leaking to the side of the light guide 54.

[0060] like Figure 4 , 6 As shown in the figure, the end face of the irradiation portion 54b is formed as an inclined surface 54c which is inclined toward the emitting portion 4 in the direction of the perpendicular line of the surface. The inclined surface 54c is inclined from the rear to the front and from the right to the left, and is inclined from the rear to the front and from the top to the bottom. The inclined surface 54c is a plane orthogonal to the line connecting the irradiation portion 54b and the emitting portion 4. As a result, the irradiation direction of the light from the inclined surface 54c to the outside of the light guide 54 toward the emitting portion 4 is roughly the same.

[0061] like Figure 6 , 7As shown, the light irradiated from the irradiation portion 54b is irradiated from the vicinity of the front end of the door 53 toward the ejection portion 4. Therefore, it is possible to avoid the shadow of the door 53 and the silo body 52 on the ejection portion 4. If the irradiation area L of the irradiation light is schematically shown in the figure, it is a relatively large roughly circular shape that illuminates the ejection portion 4 and the driven workpiece W around the ejection portion 4. When viewed from either the left or right direction of the driving tool 1, the ejection portion 4 is roughly evenly illuminated around it.

[0062] exist Fig.10 A driving tool 70 of a first comparative example is shown for comparison with the driving tool 1. Figure 6 ), the driving tool 70 is provided with a lighting device 74 at the left front portion of the main body 10. The hopper 71 of the driving tool 70 has a box-shaped rectangular hopper body 72 and a door 73 that can slide up and down on the left side of the hopper body 72. However, unlike the door 53 (see Figure 6 ), the door 73 does not have a light guide. Therefore, the light emitted from the lighting fixture 74 is blocked by the door 73 or the silo body 72, resulting in a shadow in the right area. Therefore, if the illumination area L of the lighting fixture 74 is schematically shown in the figure, it is a roughly semicircular shape that illuminates the left area of ​​the emission section 4. Therefore, the visibility of the right area of ​​the emission section 4 is poor.

[0063] As described above, the driving tool 1 includes the impact mechanism 40 for impacting the driven object T, and the main body 10 having the impact mechanism 40. The driving tool 1 further includes the ejection portion 4 for ejecting the driven object T impacted by the impact mechanism 40. The main body 10 is provided with the lighting fixture 55. The light guide 54 is provided in the region from the lighting fixture 55 to the ejection portion 4.

[0064] Therefore, the wiring 56 for supplying power to the lighting fixture 55 can be appropriately arranged in the main body 10. Therefore, the lighting fixture 55 and the wiring 56 can be easily assembled in the main body 10. In addition, the light emitted by the lighting fixture 55 is guided to the vicinity of the emission portion 4 by the light guide 54. Therefore, the surroundings of the emission portion 4 can be widely illuminated from the top of the light guide 54. In addition, the diffusion of light and the reduction of the light amount in the area from the lighting fixture 55 to the emission portion 4 can be prevented.

[0065] In addition, the driving tool 1 has a magazine 51 for supplying the driving object to the impact mechanism 40. The lighting fixture 55 is provided in front of the main body 10 in the driving direction. The light guide 54 is provided in the magazine 51. Therefore, the light guide 54 can connect the light source of the lighting fixture 55 to the emitting portion 4 by the shortest path or the substantially shortest path. Therefore, the loss of light reaching the emitting portion 4 can be reduced.

[0066] In addition, the silo 51 is box-shaped and extends in the driving direction and in a direction perpendicular to the driving direction. The silo 51 has a silo body 52 for accommodating the driving part T, and a door 53 that is opened and closed relative to the silo body 52. ​​The light guide 54 is provided on the door 53. For example, a user holding the driving tool 1 with the right hand observes the position of the driving part T from the left to the right of the driving tool 1. Moreover, considering the case where the driving tool 1 is held with the right hand, the door 53 is provided on the left side of the silo body 52. ​​Therefore, the light passing through the light guide 54 irradiates the surroundings of the emitting portion 4 from the left to the right. Therefore, the user's line of sight and the irradiation direction of the light become substantially the same direction. As a result, the visibility of the position where the driving part T is driven into the driven part W is improved.

[0067] In addition, the light guide 54 extends along the outer periphery of the magazine 51 that supplies the driving tool T to the impact mechanism 40. Therefore, the light guide 54 is adjacent to the outer periphery of the magazine 51 in a long area along the extending protruding direction. Therefore, the light guide 54 is stably supported by the magazine 51. As a result, the irradiation direction of the light irradiated from the lighting fixture 55 through the light guide 54 is stabilized.

[0068] In addition, the light guide 54 and the door 53 of the silo 51 are formed as a single component. Therefore, the number of components can be reduced. In addition, the assembly process can be reduced. In addition, there is no need to install the mounting components around the light guide 54. Therefore, the light guide 54 can be made compact around.

[0069] In addition, the light guide 54 has an irradiation portion 54b at the top end in the front direction of the irradiation direction. The irradiation portion 54b has an inclined surface 54c that is inclined in a manner that the surface perpendicular direction faces the emitting portion 4. Therefore, light is irradiated from the irradiation portion 54b in the surface perpendicular direction of the inclined surface 54c. Therefore, light is concentrated near the emitting portion 4. As a result, the irradiation efficiency of the emitting portion 4 is improved.

[0070] In addition, the driving tool 1 has a battery mounting portion 21 that can detachably mount a battery pack 22 that is a power source for the impact mechanism 40. The lighting device 55 is supplied with power from the battery pack 22 via the wiring 56. Therefore, it is possible to use the battery pack 22 for operating the impact mechanism 40 as a power source without separately providing a power source for the lighting device 55.

[0071] In addition, the lighting fixture 55 automatically switches the illumination in conjunction with the driving of the impact mechanism 40. Therefore, for example, the lighting fixture 55 automatically lights up when the user pulls the switch lever 17 before driving the driving tool T. The lighting fixture 55 turns off after the driving tool T is driven. Therefore, the user can use the driving tool 1 without performing an operation to switch the lighting fixture 55 between the on state and the off state. This improves the operability of the driving tool 1.

[0072] Next, based on Figure 8 ,9 A driving tool 60 according to a second embodiment of the present disclosure will be described. The driving tool 60 includes a magazine 61 and a lighting fixture 65 instead of Figure 1 The material bin 51 and the lighting fixture 55 of the driving tool 1 of the first embodiment shown in FIG. The material bin 61 has a light guide 64 on the right side. The lighting fixture 65 is provided at the lower part of the right front end of the main body 10. The lighting fixture 65 is electrically connected to the battery pack 22 mounted on the battery mounting portion 21. The lighting fixture 65 has a light source such as an LED that radiates light toward the front. The light guide 64 and the lighting fixture 65 are provided in the left-right direction. Figure 6 The light guide 54 and the lighting fixture 55 are shown in roughly symmetrical positions.

[0073] like Figure 8 As shown, the silo 61 has a box-shaped rectangular silo body 62 with an opening on the left side, and a door 63 that can be opened and closed up and down on the left side of the silo body 62. The silo body 62 is a box-shaped silo with an opening on the left side. The silo body 62 is formed of an opaque resin material. The door 63 can be formed of a transparent resin material, or can be formed of an opaque resin material like the silo body 62.

[0074] like Fig. 9 As shown, the light guide 64 is in the shape of a rectangular column and extends forward and backward along the right side surface of the silo body 62. The light guide 64 is formed of a transparent resin material such as polycarbonate, acrylic acid, etc. That is, the light guide 64 is formed of a resin material different from that of the silo body 62. Therefore, the light guide 64 is fixed to the right side surface of the silo body 62 by, for example, an adhesive. The light guide 64 has a light input portion 64a at the rear end and an irradiation portion 64b at the front end. The light input portion 64a of the light guide 64 is arranged to be more rearward than the rear end of the silo body 62. The irradiation portion 64b is arranged at approximately the same position as the front end of the silo body 62 in the front-to-back direction. In other words, the light guide 64 is arranged in the area between the lighting device 65 and the emission portion 4 in the front-to-back direction.

[0075] like Fig. 9 As shown, the light input portion 64a is arranged in front of the lighting fixture 65. Most of the light emitted by the lighting fixture 65 enters the light input portion 64a. The light incident from the light input portion 64a travels along the long side direction of the light guide 64, almost without leaking to the side of the light guide 64, toward the irradiation portion 64b in the front. The end face of the irradiation portion 64b is formed as an inclined surface 64c that is inclined toward the emitting portion 4 in the direction of the perpendicular line of the surface. The inclined surface 64c is inclined from the rear to the front and from the left to the right, and from the rear to the front and from the top to the bottom, and is roughly flat. As a result, the light coming out from the inclined surface 64c to the outside of the light guide 64 is roughly converged in the irradiation direction toward the emitting portion 4.

[0076] like Figure 8 ,9 As shown, the light irradiated from the irradiation portion 64b is irradiated from the vicinity of the front end of the hopper body 62 toward the ejection portion 4, so that the shadow of the hopper body 62 can be avoided in the ejection portion 4. If the irradiation area L of the irradiation light is schematically shown in the figure, it is a relatively large roughly circular shape that illuminates the ejection portion 4 and the driven workpiece W around the ejection portion 4. When viewed from either the left or right direction of the driving tool 1, the ejection portion 4 is roughly evenly illuminated around it.

[0077] exist Fig.11 A driving tool 80 of a first comparative example is shown for comparison with the driving tool 60. Fig. 9 ), the driving tool 80 is provided with a lighting device 84 at the right front portion of the main body 10. The hopper 81 of the driving tool 80 has a box-shaped rectangular hopper body 82. However, unlike the hopper body 62 (see Fig. 9 ), the silo body 82 does not have a light guide on the side. Therefore, the light emitted from the lighting fixture 84 is blocked by the silo body 82, resulting in a shadow in the left area. Therefore, if the illumination area L of the lighting fixture 84 is schematically shown in the figure, it is a roughly semicircular shape that illuminates the right area of ​​the emission part 4. Therefore, the visibility of the left area of ​​the emission part 4 is poor.

[0078] As described above, the silo 61 is a box-shaped structure extending in the driving direction and in a direction perpendicular to the driving direction. The silo 61 includes a silo body 62 for accommodating the driving member T and a door 63 that is openable and closable relative to the silo body 62. The light guide 64 is provided on the silo body 62. Therefore, the light guide 64 is provided on the silo body 62 fixed to the main body 10. Therefore, the position of the light guide 64 relative to the main body 10 is stabilized. As a result, the irradiation direction of the light irradiated from the top of the light guide 64 is stabilized.

[0079] Various changes can be added to the driving tools 1 and 60 of each embodiment described above. The driving tools 1 and 60 in which the impact mechanism 40 is a mechanical spring type are illustrated. Instead, for example, it can also be applied to a gas spring type driving tool that uses the gas pressure of the gas sealed in the pressure storage chamber as the thrust for driving. In addition, it is also applicable to a flywheel type driving tool that uses the inertial force of the flywheel to eject the driver, or an electric pneumatic driving tool that uses compressed air generated by rotating the crank by an electric motor. In addition, a driver return mechanism 30 with an idler wheel 31 and a reset gear 32 is illustrated. It can also be provided with multiple idlers 31 instead, or it can be a structure without idlers 31. Or it can also be a structure with multiple reset gears and a protruding engaging portion provided on each reset gear.

[0080] A rectangular columnar light guide 54, 64 is illustrated. Alternatively, for example, a cylindrical shape or a polygonal column other than a rectangular shape may be used. A transparent resin light guide 54, 64 is illustrated. Alternatively, for example, a glass columnar light guide 54, 64 may be used. For example, the light guide 54, 64 may be formed of glass fiber. A transparent resin door 53, 63 is illustrated, but an opaque resin door 53, 63 may also be used. A planar inclined surface 54c, 64c at the top of the light guide 54, 64 is illustrated. Alternatively, the inclined surface 54c, 64c may be, for example, a convex lens shape or a concave lens shape. This makes it possible to adjust the convergence or diffusion of the light irradiating the emission portion 4.

[0081] The wiring 56 is shown as extending from the power supply unit 20 through the inside of the handle unit 16 and the inside of the main body case 11. Alternatively, for example, the wiring 56 may be provided from the power supply unit 20 through the inside of the motor housing unit 12 and the inside of the main body case 11. The LED is shown as the lighting device 55, but for example, a light bulb that emits light by receiving power from the battery pack 22 may be used instead.

[0082] The initial state of the driving action, that is, the initial position of the driver base, or the time point when the electric motor stops, etc., can be appropriately changed in addition to the illustrated structure. The time point when the lighting fixtures 55 and 65 are turned on and off can also be appropriately changed in addition to the illustrated structure. For example, the lighting fixtures 55 and 65 can also be a structure that turns off after a specified time after the switch body 18 is turned on. The driving tools 1 and 60 of the DC power supply type using the battery pack 22 as the power source are illustrated. Alternatively, the same is also applicable to driving tools using, for example, a commercial 100V AC power source as the power source.

Claims

1. A driving tool, characterized in that: have: Impact mechanism, impact driven parts; a main body having the impact mechanism; and an ejection unit for ejecting the driven part impacted by the impact mechanism, A lighting device is provided on the main body. A light guide is provided in the region from the lighting device to the emission portion. The light guide has a light incident portion facing the lighting fixture and an irradiation portion provided near the emitting portion, and guides light from the lighting fixture to the emitting portion along the shortest path between the light incident portion and the irradiation portion.

2. The driving tool according to claim 1, characterized in that A silo is provided for supplying the driven member to the impact mechanism. The lighting device is arranged in front of the main body in the driving direction. The light guide is arranged on the material bin.

3. The driving tool according to claim 2, characterized in that The silo is a box-shaped structure extending in the driving direction and in a direction perpendicular to the driving direction, and comprises a silo body for accommodating the driving member and a door that can be opened and closed relative to the silo body. The light guide is arranged on the door.

4. The driving tool according to claim 2, characterized in that The silo is a box-shaped structure extending in the driving direction and in a direction perpendicular to the driving direction, and comprises a silo body for accommodating the driving member and a door that can be opened and closed relative to the silo body. The light guide is arranged on the silo body.

5. The driving tool according to claim 3 or 4, characterized in that The light guide extends along the outer circumference of the silo.

6. The driving tool according to claim 3 or 4, characterized in that The light guide is formed as a single component with at least part of the silo.

7. The driving tool according to any one of claims 1 to 4, characterized in that: The irradiation portion has an inclined surface that is inclined in a direction perpendicular to the surface toward the emitting portion.

8. The driving tool according to any one of claims 1 to 4, characterized in that: A battery mounting portion is provided to which a battery serving as a power source of the impact mechanism can be detachably mounted, The lighting fixture is supplied with power from the battery.

9. The driving tool according to any one of claims 1 to 4, characterized in that: The lighting device automatically switches the irradiation in conjunction with the driving of the impact mechanism.

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