JP5696579B2 - Driving tool - Google Patents

Description

  The present invention relates to a driving tool for driving fasteners such as nails, staples, pins and screws into objects such as wood, gypsum board, steel plate and concrete.

  Among driving tools that are one type of driving tool, there is a driving tool in which an LED is provided in a magazine as disclosed in Japanese Patent Application Laid-Open No. 2009-202287. Specifically, the driving tool has a body provided with a driving mechanism for driving a fastener and an electric circuit portion, and a magazine and a grip portion are provided in order from a front nose portion for driving the fastener. The magazine is a separate part from the main body in consideration of maintenance. In Patent Document 1 in which such a driving tool is disclosed, an LED serving as a lighting device is provided on the front surface of a magazine on the front surface of the body.

  In such a driving tool, electric circuit portions such as a power supply circuit and a drive circuit are not provided in the magazine, but are provided in the body. Therefore, the LED provided in the magazine needs to be electrically connected to the electrical circuit in the body with a harness.

  The grip part of the body and the magazine are generally separated from each other, and the harness connecting the lighting device and the electric circuit in the body is bare or only covered with a flexible tube. The exposed harness that connects the magazine and the body and the driving tool that exposes the flexible tube do not improve the appearance of the body. In addition, the driving tool is often used at a work site where there are many obstacles such as interior work, and there is a possibility that the obstacles may be caught on the harness or sometimes the harness may be damaged.

JP 2009-202287 A

  The present invention has been made on the basis of the above problems, and provides a driving tool that can sufficiently protect an electrical component or a harness that connects an electronic component and an electrical circuit portion of a body. Objective.

  Another object of the present invention is to provide a drive tool that can improve the appearance by preventing the harness that connects the electrical component or the electronic component and the electrical circuit portion of the body from the outside.

In order to solve the above-described problem, a driving tool according to the present invention is provided in the body having a driving mechanism for driving a fastener, a driving mechanism for driving the driving mechanism, and an electric circuit unit , a nose portion hammer out the fastener, provided in a direction intersecting the driving direction of the fastener from the nose portion, a magazine fixed to the body by a connecting portion formed on different ends side to the nose portion, the An electrical component or an electronic component provided in the magazine is a driving tool electrically connected to the electrical circuit unit by a harness inserted in a wiring groove provided inside the coupling unit, connecting portion, one of said body or said magazine is constituted enters write useless until inside the other, the harness, in the interior of the body or the magazine It is derived from the serial connection unit, characterized in Rukoto.

For example, the body, the main body and a grip portion that is provided so as to be substantially perpendicular, and an auxiliary grip portion provided in the main body and substantially spaced parallel spaced with the grip portion, the grip portion and the auxiliary grip and a bridge portion bridging the ends of the parts, the said main body, said hammering mechanism is provided, the said auxiliary grip portion, at least a portion of the drive mechanism is provided on the bridge portion Is provided with the electric circuit portion, and the connecting portion is provided between the magazine and the auxiliary grip portion.

Further, in the magazine, for example, the harness is disposed in a wiring groove provided from the nose portion side to the connecting portion side .

  Here, the electrical component or the electronic component is a detection switch for detecting the presence or absence of a fastener loaded in the magazine, and detects that a contact arm of a nose portion into which the fastener is driven is in contact with an object. This is a detection switch. Moreover, it is LED.

  According to the present invention, the connecting portion through which the harness is inserted is provided, the connecting portion enters the inside of the body, the harness is led out from the connecting portion in the body, and is electrically connected to the electric circuit portion in the body. To be. Therefore, it is possible to sufficiently protect the harness that connects the electrical component or the electronic component and the electrical circuit portion of the main body, and to improve the appearance by making the harness invisible from the outside.

It is sectional drawing of the driving tool to which this invention was applied. It is a perspective view of the driving | operation mechanism of the fastener of the said driving tool. It is a perspective view of the drive mechanism of the driving tool. (A) is a plan view of the drive mechanism, and (B) is a cross-sectional view of the drive mechanism. It is a transition diagram of operation of a drive mechanism, and (A) shows the relation between the 1st and 2nd torque rollers and the 1st and 2nd engagement projections when a plunger is in a bottom dead center, ) Shows the relationship between the first and second torque rollers and the first and second engaging protrusions when the plunger is raised, and (C) shows the first relationship when the plunger reaches top dead center. The relationship between the first and second torque rollers and the first and second engaging protrusions is shown, and (D) shows the second torque roller and the second engaging protrusions when the plunger reaches top dead center. The state when the engagement of is released is shown. It is sectional drawing of the driving mechanism and buffer mechanism of the said driving tool. It is sectional drawing when a plunger exists in a bottom dead center. It is sectional drawing when a plunger raises to a top dead center. FIG. 10 is a cross-sectional view when the fastener is being lowered while the fastener is being driven. It is sectional drawing when a plunger reaches | attains bottom dead center. It is a side view which shows the state which the slider of the magazine was pulled out from the magazine main body and the accommodating part was exposed. It is sectional drawing of a magazine. It is a side view of the said driving tool. It is a perspective view of the said driving tool which shows the wiring of a magazine. It is an expansion perspective view of the wiring part of a magazine. It is an enlarged side view of the wiring part of the conventional magazine. It is a perspective view which shows the modification of this invention. It is a partially cutaway perspective view of the modified example.

  Hereinafter, a driving tool to which the present invention is applied will be described in detail with reference to the drawings. Hereinafter, the driving tool will be described in the following order.

1. Overall configuration Body 3. Fastener driving mechanism 4. 4. Drive mechanism Buffer mechanism 6. Magazine 7. 7. Wiring between the magazine and the power circuit Overall operation and effects 9. Modification 10 Other variations

[1. overall structure]
As shown in FIG. 1, a driving tool 1 to which the present invention is applied is a tool for driving a fastener (nail, staple, pin, etc.) into an object such as wood, gypsum board, steel plate, concrete, etc. 10 and a magazine 50 for supplying fasteners to the body 10. In the body 10, a driving mechanism 20 for driving a fastener of the magazine 50 and a driving mechanism 32 for driving the driving mechanism 20 are provided. The body 10 is provided with a nose portion 11 having an injection port for punching fasteners at the front upper corner portion. The magazine 50 is provided in the nose portion 11 in a direction substantially perpendicular to the central axis direction of the body 10, that is, the fastener launching direction (arrow D1 direction).

[2. body]
As shown in FIG. 1, the body 10 has a body main body 10a, and a nose portion 11 having an injection port 11b for ejecting a fastener to an object is provided at a front side corner portion of the body main body 10a. As shown in FIGS. 1 and 2, the nose portion 11 is configured by combining a driver guide 11 c and a wear plate 11 d constituting the injection port 11 b. A contact arm 11a (see FIG. 2), which is a part of the safety device, is provided at the tip of the driver guide 11c, that is, the tip of the injection port 11b. The contact arm 11a normally protrudes around the injection port 11b, and permits operation of the trigger in conjunction with the trigger device when pressed against the object. In this nose portion 11, a magazine 50 is attached to a wear plate 11d.

  Further, the body main body 10a is provided with a grip portion 12 to be gripped by the user and an auxiliary grip portion 13 to assist the grip portion 12 so as to be substantially orthogonal to the central axis, that is, to be substantially parallel to the magazine 50. It has been. The grip portion 12 and the auxiliary grip portion 13 are connected to each other at a lower end portion by a bridging portion 14 and have a substantially annular shape so that the grip portion 12 can be gripped. The bridging section 14 is an electric circuit section that incorporates a microcomputer that controls the overall operation in response to input from various detection switches such as a power supply circuit, a drive motor control circuit, and a detection switch of the contact arm 11a. A substrate 17 is provided. Further, this microcomputer drives the LED when an LED that is lit during operation or an LED for illumination is provided on one side surface of the magazine 50 or the like.

  Here, the position where the printed wiring board 17 is provided is provided in the bridging portion 14, but is not particularly limited as long as it is an empty space portion of the body 10. That is, the printed wiring board 17 may be provided in an empty space part in the body main body 10 a, the grip part 12, or the auxiliary grip part 13. The printed wiring board 17 may be divided and provided at a plurality of locations.

  Moreover, the trigger 15 is provided in the base part with the body main body 10a of the grip part 12 in the back side of the body main body 10a so that it may protrude in the annular part side. Further, the bridging portion 14 is provided with a battery mounting portion to which the battery pack 16 is mounted on the lower surface side. The battery pack 16 to be attached to the battery attachment portion incorporates a secondary battery such as a lithium ion secondary battery or a nickel hydride secondary battery, and a drive mechanism in the body 10 via the printed wiring board 17. Supply power to etc.

  In addition, the grip part 12 and the auxiliary | assistant grip part 13 are not substantially perpendicular | vertical with respect to the axial direction of the body 10, and may be provided so that it may curve forward or back, or may incline.

  A description will be given of the arrangement of parts in the body 10 as described above. A driving mechanism 20 for driving a fastener is disposed in the body main body 10a, and the driving mechanism 20 is driven in the auxiliary grip portion 13. At least a part of the drive mechanism 32 is disposed. Next, the fastener driving mechanism 20 will be described.

[3. Fastener driving mechanism]
The fastener driving mechanism 20 disposed in the body main body 10a includes a first fixing member 21 and a second fixing member 22 located at both ends, as shown in FIGS. The first fixing member 21 and the second fixing member 22 are opposed to each other and are connected in a state of being separated by the guide rails 23 and 23. Further, a pipe 24 is disposed between the first fixing member 21 and the second fixing member 22, and a plunger 25 and a biasing member that biases the plunger 25 in one direction are provided on the pipe 24. A plunger spring 26 is wound around. In addition, a driver 27 for driving a leading fastener supplied from the magazine 50 is fixed to the plunger 25. The driver 27 drives the leading fastener supplied from the magazine 50 into the injection port 11 b, is guided by the guide groove of the driver guide 11 c, and moves linearly in accordance with the operation of the plunger 25.

  The first fixing member 21 and the second fixing member 22 are kept separated from each other by fixing both ends of the linear guide rails 23 and 23 for guiding the movement of the plunger 25 with screws or the like. Is done. Further, as shown in FIG. 6, the first and second fixing members 21 and 22 have a concave first support portion 21a and a convex second support portion 22a that support the pipe 24 on opposite surfaces. And are provided. The pipe 24 is fixed between the first fixing member 21 and the second fixing member 22 by fitting both ends to the first support portion 21a and the second support portion 22a.

  As shown in FIGS. 1, 2 and 6, a plunger 25 is attached to the pipe 24. The plunger 25 has an insertion portion 25a through which the pipe 24 is inserted, and a fixed piece 28 to which the driver 27 is fixed. A base end portion of the long thin plate driver 27 is fixed to the fixing piece 28 by screwing or the like. Further, on the opposite side of the fixed piece 28 of the plunger 25, there are a first engagement protrusion 29 and a second torque roller 42 to which the first torque roller 41 of the drive mechanism 32 that moves the plunger 25 is engaged. A second engagement protrusion 30 to be engaged is provided.

  Further, as shown in FIG. 2, the plunger 25 is provided on both sides where the fixed piece 28 and the first and second engaging protrusions 29 and 30 are not provided, that is, the fixed piece 28 and the first and second pieces. Two guide rollers 31 a and 31 b serving as a guide mechanism for the plunger 25 are provided on each side on both sides substantially orthogonal to the straight line connecting the engaging protrusions 29 and 30. The guide rollers 31 a and 31 b engage with the concave guide grooves of the guide rails 23 and 23 fixed to the first and second fixing members 21 and 22. The plunger 25 becomes rolling friction by engaging the guide rollers 31a and 31a with the guide rails 23 and 23, and can reduce the frictional resistance. Thereby, the plunger 25 can move smoothly between the first fixing member 21 and the second fixing member 22.

  Note that a lubricant may be further applied to the guide grooves of the guide rails 23 and 23. Further, the number of guide rollers 31a and 31a provided on each side is not limited to two, and may be one or three or more.

  The plunger spring 26 is a compression coil spring, and the pipe 24 is inserted therethrough and is arranged in a region between the second fixing member 22 and the plunger 25. The plunger spring 26 urges the plunger 25 abutted against the other end in the direction of the arrow D1 in FIG. When the plunger spring 26 is inserted into the pipe 24, the plunger spring 26 can be prevented from bending in a direction different from the central axis during expansion and contraction, and the elastic energy loss can be reduced.

[4. Drive mechanism]
The drive mechanism 32 that drives the driving mechanism 20 configured as described above moves the plunger 25 from the first fixed member 21 side to the second fixed member 22 side against the elastic force of the plunger spring 26. . As shown in FIGS. 3, 4A, and 4B, the drive mechanism 32 includes a drive motor 33 that serves as a drive source. A worm 34 is attached to the spindle of the drive motor 33, and the worm 34 is engaged with a planetary gear mechanism 35 that serves as a speed reduction mechanism and is excellent in torque transmission. Furthermore, an arm gear 36 is engaged with the planetary gear mechanism 35. Further, the arm gear 36 is engaged with a first torque gear 37 that moves the plunger 25 against the elastic force of the plunger spring 26, and the first torque gear 37 is engaged with a second torque gear 38. Yes. The arm gear 36, the first torque gear 37, and the second torque gear 38 are supported by a single gear plate 39. That is, the gear plate 39 includes the arm gear 36 in addition to the shaft-shaped first support portion 39 a that supports the first torque gear 37 and the shaft-shaped second support portion 39 b that supports the second torque gear 38. A cylindrical third support portion 39c that pivotally supports the shaft. The arm gear 36, the first torque gear 37, and the second torque gear 38 are attached to a single gear plate 39, thereby suppressing variations in distance between the centers of the gears and improving the durability of the gear teeth. Furthermore, driving loss can be reduced.

  The first torque gear 37 is provided with a first torque roller 41 serving as a first drive protrusion that engages with the first engagement protrusion 29 of the plunger 25, and the second torque gear 38 includes a plunger 25. A second torque roller 42 serving as a second drive protrusion that engages with the second engagement protrusion 30 is provided. The first torque gear 37 and the second torque gear 38 meshing with each other rotate the first torque gear 37 in the direction of arrow R1 in FIG. 5 and the second torque gear 38 in the direction of arrow R2 in FIG. Thereby, the 1st and 2nd torque rollers 41 and 42 follow the locus shown in Drawing 5 (A)-(D).

  As shown in FIG. 5 (A), the first engagement protrusion 29 of the plunger 25 moves when the plunger 25 is at the bottom dead center position when the first torque roller 41 of the first torque gear 37 moves. Above, when the first torque roller 41 starts moving in the circumferential direction from the lowest initial position and starts to rise, the first torque roller 41 is in a position to engage with the first torque roller 41. Further, as shown in FIG. 5 (B), the second engagement protrusion 30 immediately before the plunger 25 moves upward and the first torque roller 41 of the first torque gear 37 reaches the uppermost portion. Further, the second torque roller 42 of the second torque gear 38 is disposed at a position where the second torque roller 42 starts to rise from the lowermost part. As described above, the first and second engagement protrusions 29 and 30 are provided with the first and second torque rollers 41 and 42 as the first and second torque gears 37 and 38 mesh with each other. The plungers 25 are sequentially engaged, and the plunger 25 is lifted from the first fixing member 21 side to the second fixing member 22 side against the elastic force of the plunger spring 26.

  In such a drive mechanism 32, when the drive motor 33 is started, the first torque gear 37 and the second torque gear 38 are opposite to each other (arrows R1, R2 in FIG. 5) via the planetary gear mechanism 35 and the arm gear 36. Direction). When the plunger 25 is at the bottom dead center position, as shown in FIG. 5A, the first torque roller 41 of the rotating first torque gear 37 is the lower surface of the first engagement protrusion 29 of the plunger 25. Engage with. As the first torque gear 37 continues to rotate in the direction of the arrow R <b> 1, the first torque roller 41 rises and the plunger 25 is lifted against the plunger spring 26. Then, as shown in FIG. 5B, immediately before the first torque roller 41 reaches the top, the second torque roller 42 of the second torque gear 38 starts to rise in the direction of the arrow R2 from the bottom. The plunger 25 engages with the lower surface of the second engagement protrusion 30 of the plunger 25. Then, as the second torque gear 38 continues to rotate in the direction of arrow R2, the plunger 25 is further lifted to the position shown in FIG. As shown in FIG. 5D, when the second torque gear 38 is further rotated and the second torque roller 42 is disengaged from the second engaging protrusion 30, the plunger 25 is moved by the elastic force of the plunger spring 26. The second fixing member 22 is driven in the direction of the first fixing member 21. At this time, the driver 27 coupled to the plunger 25 moves in the direction of arrow D1 in FIG. 2 and FIG. The one cycle ends.

  In addition, although the number of torque gears demonstrated two examples here, it is determined according to the movement distance of the plunger 25, and is not limited to two especially, Even if it is one It may be three or more. According to the number of torque gears, that is, according to the number of torque rollers provided in the torque gear, the plunger 25 is provided with an engaging protrusion. The drive mechanism 32 that drives the driving mechanism 20 resists the elastic force of the plunger spring 26 by winding up the plunger 25 that is biased in the driving direction by the plunger spring 26 with a winch that pulls the plunger 25. It may be a drive mechanism that is moved.

[5. Buffer mechanism]
As shown in FIG. 6, the pipe 24 of the driving mechanism 20 is provided with a buffer mechanism 43 for buffering an impact when the fastener is driven. The buffer mechanism 43 includes a weight 44 disposed in the pipe 24, a weight spring 45 that urges the weight 44 in the direction of the second fixing member 22 (the direction of arrow D2 in FIG. 6), and a second fixing member. 22, a weight stop 46 disposed inside the pipe 22, a wire 47 connecting the weight 44 inside the pipe 24 and the plunger 25 outside the pipe 24, and a pulley 48 that guides the wire 47. Yes.

  The weight 44 has a large diameter portion 44 a and a small diameter portion 44 b, and the large diameter portion 44 a slides on the inner surface of the pipe 24, thereby moving the pipe 24 linearly. One end of the wire 47 is engaged with the protrusion 47a of the weight 44. The other end of the wire 47 is engaged with the protrusion 47 b of the plunger 25. The weight spring 45 is, for example, a compression coil spring disposed in the pipe 24 between the first fixing member 21 and the weight 44, and the weight 44 is moved in the direction of the second fixing member 22 (arrow D2 in FIG. 6). Direction). One end of the weight spring 45 is engaged with the large diameter portion 44 a of the weight 44.

  As shown in FIG. 7, when the plunger 25 is at the bottom dead center position, the weight 44 is in contact with the weight stop 46 on the second fixing member 22 side by the elastic force of the weight spring 45. Next, as shown in FIG. 8, when the plunger 25 is lifted to the top dead center position by the drive mechanism 32, the weight 44 is pulled by the plunger 25 via the wire 47, so that the elastic force of the weight spring 45 is reduced. Accordingly, the weight spring 45 is contracted and moved in the direction of the first fixing member 21 (counter arrow D2 direction (arrow D1 direction)).

  When the fastener is driven, the plunger 25 is vigorously moved in the direction of the first fixing member 21 (arrow D1 direction) by the elastic force of the plunger spring 26, as shown in FIGS. At this time, the driving tool 1 generates a reaction force P1 that is pushed up from the object. At this time, the wire 47 is temporarily slackened by the plunger 25 moving vigorously in the direction of the second fixing member 22 (arrow D1 direction) by the elastic force of the plunger spring 26, and the weight 44 is independent. The inside of the pipe 24 is moved in the direction of the second fixing member 22 (arrow D2 direction) by the elastic force of the plunger spring 26. This sets the weight of the plunger 25, the load of the plunger spring 26, the weight of the weight 44, and the load of the weight spring 45 so that the speed of the plunger 25 by the plunger spring 26 is faster than the speed of the weight 44 by the weight spring 45. This can be achieved. As a result, the driving tool 1 generates a pressing force that presses the weight 44 in the direction of the object by the reaction force P2 of the weight spring 45 that tries to push up the weight 44 in the direction of the second fixing member 22.

  Thus, in the buffer mechanism 43, the reaction force P1 pushed up from the object can be weakened or canceled by the reaction force P2 of the weight spring 45. In addition, the buffer mechanism 43 includes (the load P2 of the weight spring 45 + the load of the driving tool 1 (pressing load by the operator ± tool weight) P3) and (the reaction force P1 when the fastener is driven + the load of the plunger spring 26 ( The reaction force P4) cancels the force with each other, whereby the total reaction amount of the driving tool 1 can be determined. As described above, the driving tool 1 can appropriately set the load applied to the object when the fastener is driven. For example, when driving the fastener to finish the interior, it is pressed in the direction of the object. It is possible to prevent the pressing force from becoming too strong and scratching the surface.

[6. magazine]
As shown in FIGS. 1 and 2, the magazine 50 is attached to the nose portion 11 of the body main body 10a. Specifically, the magazine 50 is fixed to the wear plate 11d constituting the nose portion 11 by screwing or the like, and intersects the central axis direction of the body 10, that is, the direction in which the fastener is launched (arrow D1 direction), Then, it is provided linearly in a substantially orthogonal direction. When the magazine 50 is attached to the nose portion 11, the magazine 50 is attached to be separated from the auxiliary grip portion 13 of the body main body 10a. As shown in FIG. 11, the magazine 50 stores a plate-like connection band 51 in which individual fasteners are connected in a thin plate shape with an adhesive or the like. That is, the plate-like connecting band 51 has a substantially rectangular shape as a whole. As shown in FIG. 11, the magazine 50 includes a magazine main body 52 in which the plate-like connecting band 51 is accommodated, and a slider 53 that slides in the direction of the arrow D <b> 3 that is the extension direction of the magazine 50.

  The magazine main body 52 is provided with a storage portion 54 for storing the plate-like connecting band 51 in the longitudinal direction so as to approach the front side opposite to the auxiliary grip portion 13. The storage portion 54 is a recess having a depth approximately equal to the thickness of the plate-like connecting band 51. The bottom surface of the storage portion 54 is a support surface 54 a that supports a portion excluding one end portion where the tips of the fasteners of the plate-like connection band 51 are arranged.

  A guide portion 55 is provided on the side edge of the storage portion 54 in the driving direction of the fastener to guide one end portion in which the front ends of the fasteners of the plate-like connecting band 51 are arranged in the longitudinal direction. Specifically, the guide portion 55 is provided by a substantially concave guide member 56, as shown in FIG. The guide member 56 connects the first and second guide pieces 56a and 56b, and the first and second guide pieces 56a and 56b in which a pair of opposing pieces guide one end of the plate-like connecting band 51, It is comprised from the positioning piece 56c which positions the one end part of the plate-shaped connection belt | band | zone 51 located in the back of a recessed part.

  As shown in FIG. 12, the side edge of the storage portion 54 in the direction in which the fastener is driven out is formed lower by the thickness of the first guide piece 56a on the support surface 54a side of the storage portion 54, and the first guide piece 56a is formed. When the is disposed, the support surface 54a and the surface of the first guide piece 56a are formed to have the same height. The positioning piece 56 c serves as a positioning wall for positioning one end portion of the plate-like connection band 51, and has a width slightly larger than the thickness of one end portion of the plate-like connection band 51. Further, the second guide piece 56 b that is separated from the support surface 54 a of the storage portion 54 is formed to have a length (for example, 2 to 8 mm) that covers one end of the plate-like connecting band 51. The inner surface of the second guide piece 56 b is a guide surface at one end of the plate-like connecting band 51.

  An extraction groove 57 is formed continuously between the support surface 54 a of the storage portion 54 and the first guide piece 56 a of the guide member 56. The take-out groove 57 is a recess provided in a straight line substantially parallel to the positioning piece 56c, so that at least the end portion 57a on the auxiliary grip portion 13 side of the body main body 10a does not overlap the tip of the second guide piece 56b. Is formed. Here, the extraction groove 57 is further provided so as to be continuous from the tip of the second guide piece 56b in a plan view, that is, not to overlap the second guide piece 56b. In the take-out groove 57, the end 57a of the body main body 10a on the side of the auxiliary grip 13 is an inclined surface so that the plate-like connecting band 51 can be raised obliquely.

  In such a magazine 50, the slider 53 is slid in the direction of the arrow D3 in FIG. It becomes. As shown in FIGS. 11 and 12, the plate-like connecting band 51 is formed from the side of the auxiliary grip portion 13 of the body main body 10a with one end portion where the tips of the fasteners of the plate-like connecting band 51 are arranged as insertion ends. 12 is inserted into the guide portion 55 in the direction of arrow D4. Then, the plate-like connecting band 51 is inserted between the first and second guide pieces 56a and 56b so as to be along the support surface 54a of the storage portion 54, that is, to lie on the support surface 54a. 56c. Thereafter, the magazine 50 is slid in the direction of the opposite arrow D3 on the base side, whereby the storage portion 54 is closed and the driving tool 1 can be used.

  On the other hand, when the plate-like connection band 51 stored in the storage part 54 is taken out, as shown in FIG. 12, first, the plate-like connection band 51 is located on the auxiliary grip part 13 side of the body body 10a in FIG. Slide in the direction of the opposite arrow D4. The plate-like connecting band 51 is pressed into the take-out groove 57 by the user's finger or the like when one end of the plate-like connecting band 51 where the tips of the fasteners line up approaches the take-out groove 57. Then, the plate-like connecting band 51 rises along the inclined surface of the end 57a on the auxiliary grip portion 13 side of the take-out groove 57, and can be easily taken out by being gripped by the user.

  As shown in FIGS. 11 and 12, the magazine 50 of the driving tool 1 is provided with an extraction groove 57. Therefore, the plate-like connecting band 51 is slid toward the auxiliary grip portion 13 of the body main body 10a to be extracted. By pressing the groove 57, the plate-like connecting band 51 can be easily taken out. In the driving tool 1, the gap 58 between the magazine 50 and the auxiliary grip portion 13 can be reduced, and the overall size can be reduced.

  The shape of the magazine 50 may be provided so as to be bent forward or backward rather than substantially perpendicular to the axial direction of the body 10.

[7. Wiring between magazine and power supply circuit]
As shown in FIGS. 13 and 14, the magazine 50 includes an electrical component or an electronic device that detects the movement of the contact arm 11 a serving as a part of the safety device near the base portion of the body body 10 a, that is, in the vicinity of the nose portion 11. A detection element 61 such as a micro switch which is a component is provided. The detection element 61 is, for example, a push-type switch that presses the detection piece when the contact arm 11a is moved by being pushed by the object.

  Further, in the vicinity of the detection element 61, a detection element 62 for detecting the presence or absence of fasteners is further provided. The detection element 62 is, for example, a microswitch that is an electrical component or an electronic component that detects the absence of the plate-like connection band 51 in the storage portion 54 of the magazine 50, and the plate-like connection stored in the storage portion 54. The detection piece is pressed by the band 51.

  The detection elements 61 and 62 may be optical switches or the like in addition to mechanical push switches.

  The detection elements 61 and 62 are electrically connected by a harness 63 to a printed wiring board 17 (see FIG. 2) serving as an electric circuit portion disposed in the bridging portion 14 of the body main body 10a. Specifically, as shown in FIGS. 13 to 15, the magazine main body 52 is provided with a wiring groove 64 on the auxiliary grip portion 13 side of the body main body 10a along the longitudinal direction. The detection elements 61 and 62 are both disposed on the base portion side of the magazine 50, and the wiring groove 64 is formed as a concave groove from the base portion side to the rear end portion side of the magazine main body 52. . When the wiring groove 64 is disposed along the harness 63, the wiring groove 64 is closed by a closing plate 65 that closes the wiring groove 64.

  The magazine body 52 is integrally provided with a connecting portion 66 which is fixed to the rear end side of the auxiliary grip portion 13 of the body main body 10a, that is, the bridge portion 14 where the printed wiring board 17 is disposed. Is provided. The connecting portion 66 is provided with an extended wiring groove 64 of the magazine body 52. A fixing hole 67 serving as a fixing portion to the body main body 10a is provided at the distal end portion of the connecting portion 66. The connecting portion 66 enters the inside through a notch portion 66 a provided in the bridging portion 14, and the tip portion is fixed inside the bridging portion 14 by inserting a fixing member 67 a (see FIG. 2) such as a screw through the fixing hole 67. Is done. Specifically, it is fixed below the drive motor 33 provided in the auxiliary grip portion 13.

  Inserting the harness 63 into the body main body 10a from the wiring groove 64 into the rising wall 68 constituting the wiring groove 64 extended from the magazine main body 52 slightly before the fixing hole 67 at the distal end of the connecting portion. A hole 69 is provided. The insertion hole 69 is provided in the vicinity of the printed wiring board 17 serving as an electric circuit portion, and the harness 63 led out from the insertion hole 69 is electrically connected to the printed wiring board 17 disposed inside the bridging portion 14. Connected to.

  As described above, the detection elements 61 and 62 of the magazine main body 52 are electrically connected to the printed wiring board 17 by disposing the harness 63 in the wiring groove 64 provided from the magazine main body 52 to the connecting portion 66. can do. In addition, in the appearance of the driving tool 1, the magazine 50 and the rear end portion of the auxiliary grip portion 13 are connected by the connecting portion 66, and the harness 63 is not exposed to the outside and is in a protected state. Yes.

  That is, in the driving tool 1, as shown in FIG. 2, the driving mechanism 32 and a driving mechanism 32 for driving a fastener into the body main body 10a close to the magazine 50 are disposed, and the driving tool 32 is driven into the auxiliary grip portion. A part including the drive motor 33 of the drive mechanism 32 that drives the mechanism 20 is provided. For this reason, when the harness 63 is guided to the printed wiring board 17 of the bridging portion 14, it is difficult to dispose the harness 63 in a path that passes through the body main body 10 a and the auxiliary grip portion 13. Therefore, in the driving tool 1, a connecting portion 66 is provided between the rear end portion of the magazine 50 and the auxiliary grip portion 13 so that the harness 63 is passed through the connecting portion 66.

  As shown in FIG. 16, conventionally, there is often no connecting portion 66 between the rear end portion of the magazine 50 and the auxiliary grip portion 13, and the harness 63 is covered with the flexible tube 63a. Moreover, the harness 63 itself was often exposed. For this reason, it is difficult to improve the appearance of this portion, and the harness 63 may be damaged. On the other hand, in the driving tool 1, the harness 63 can be hidden by the connecting portion 66, and the appearance can be improved. Moreover, it is possible to prevent the harness 63 from being damaged by being caught by an obstacle or the like at the work site.

  In the example described above, the connecting portion 66 is integrally provided at the rear end portion of the magazine main body 52 and is fixed inside the bridging portion 14 of the body main body 10a. A connecting portion 66 provided with a part of 64 may be provided integrally with the bridging portion 14 of the body main body 10 a and connected to the wiring groove 64 of the magazine main body 52 so as to be fixed inside the magazine main body 52. . Further, the position where the connecting portion 66 is provided is not limited to the rear end portion of the magazine main body 52 or the rear end portion of the auxiliary grip portion 13. For example, the middle portion of the magazine main body 52 or the middle portion of the auxiliary grip portion 13 is provided. It may be.

  Further, the magazine 50 may be a substantially cylindrical magazine that accommodates a spiral connecting fastener. Furthermore, the electrical component or the electronic component provided in the magazine 50 may be an LED that lights during operation, an LED for illumination, or the like. For example, the LED and the LED for illumination can be provided on the same surface as the injection port 11 b, for example, the front surface of the magazine 50 of the driving tool 1.

[8. Overall operation and effects]
Operation | movement of the driving tool 1 comprised as mentioned above is demonstrated. First, when the fastener is driven into an object such as wood, gypsum board, steel plate, or concrete, the contact arm 11a of the nose portion 11 is pressed against the object as shown in FIG. As a result, the detection element 61 that detects that the contact arm 11a has been pushed by the object outputs a detection signal indicating that the contact arm 11a has been pushed to the control unit of the printed wiring board 17 in the bridging portion 14 of the body main body 10a. To do. Further, when the detection element 62 that detects the presence or absence of fasteners detects the plate-like connection band 51 in the storage portion 54 of the magazine main body 52, it outputs a detection signal to the control portion of the printed wiring board 17. Thus, the control unit permits the drive motor 33 to be driven. Next, the trigger 15 is pulled, and when this is detected by a microswitch or the like, the drive motor 33 of the drive mechanism 32 is driven.

  Then, as shown in FIG. 5A, the first torque roller 41 of the rotating first torque gear 37 is engaged with the lower surface of the first engagement protrusion 29 of the plunger 25, and the plunger 25 is moved to the plunger. It is lifted against the spring 26 in the direction of the opposite arrow D1. Then, as shown in FIG. 5B, immediately before the first torque roller 41 reaches the uppermost position, the second torque roller 42 of the second torque gear 38 has the second engagement protrusion of the plunger 25. The plunger 25 is engaged with the lower surface of the portion 30, and the plunger 25 is lifted in the counter arrow D1 direction against the plunger spring 26 and moved to the position shown in FIG. Next, as shown in FIG. 5D, when the second torque gear 38 further rotates and the second torque roller 42 is disengaged from the second engagement protrusion 30, the plunger 25 has the elastic force of the plunger spring 26. As a result, the second fixing member 22 moves vigorously in the direction of the first fixing member 21. At this time, the driver 27 coupled to the plunger 25 moves in the direction of the arrow D1 in FIGS. 2 and 6, drives the fastener supplied to the injection port 11b, drives it toward an external object, and drives the fastener. One cycle of work ends.

  As described above, when the fastener is driven, the plunger 25 moves vigorously in the direction of the first fixing member 21 (the direction of the arrow D1) by the elastic force of the plunger spring 26 as shown in FIGS. . At this time, the driving tool 1 generates a reaction force P1 that is pushed up from the object. At this time, the wire 47 is temporarily slackened by the plunger 25 moving vigorously in the direction of the second fixing member 22 (arrow D1 direction) by the elastic force of the plunger spring 26, and the weight 44 is independent. The inside of the pipe 24 is moved in the direction of the second fixing member 22 (arrow D2 direction) by the elastic force of the plunger spring 26. As a result, the driving tool 1 generates a pressing force that presses the weight 44 in the direction of the object by the reaction force P2 of the weight spring 45 that tries to push up the weight 44 in the direction of the second fixing member 22. Thereby, the driving tool 1 can weaken or cancel the reaction force P1 pushed up from the object by the reaction force P2 of the weight spring 45.

  In the driving tool 1 configured as described above, the harness 63 that electrically connects the detection elements 61 and 62 in the magazine 50 and the printed wiring board 17 in the body main body 10a can be hidden by the connecting portion 66. Yes, it can improve the appearance. Moreover, it is possible to prevent the harness 63 from being damaged by being caught by an obstacle or the like at the work site.

[9. Modified example]
As shown in FIGS. 17 and 18, the driving tool 71 as a modification of the present invention is not provided with the magazine 50 unlike the driving tool 1 described above. That is, the driving tool 71 includes the body 10 provided with a driving mechanism 20 for driving fasteners and a drive mechanism 32 for driving the driving mechanism 20. Specifically, the body 10 has a body main body 10a, and a nose portion 11 having an injection port 11b for driving a fastener into an object is provided at a nose reinforcing portion of a front side corner portion of the body main body 10a. As shown in FIGS. 1 and 2, the nose portion 11 is configured by combining a driver guide 11 c that constitutes an injection port and a wear plate 11 d. A contact arm 11a (see FIG. 2), which is a part of the safety device, is provided at the front end of the driver guide 11c, that is, the front end of the injection port so as to protrude in the fastener launching direction (arrow D1 direction). . The contact arm 11a normally protrudes around the injection port 11b, and when it is pressed against an object, the contact arm 11a is interlocked with a trigger device and permits a trigger operation. In the driving tool 71, fasteners are loaded one by one from an insertion port provided on the bottom surface of the nose portion 11. Of course, the position of the insertion port may be the upper surface of the nose portion 11 or the side surface.

  Further, the body main body 10 a is provided with a grip portion 12 held by a user and an auxiliary grip portion 13 that assists the grip portion 12 so as to be substantially orthogonal to the central axis. The grip portion 12 and the auxiliary grip portion 13 are connected to each other at a lower end portion by a bridging portion 14 and have a substantially annular shape so that the grip portion 12 can be gripped. The bridging section 14 is an electric circuit section that incorporates a microcomputer that controls the overall operation in response to input from various detection switches such as a power supply circuit, a drive motor control circuit, and a detection switch of the contact arm 11a. A substrate 17 is provided. Further, a battery pack 16 is attached to the bridging portion 14 on the lower surface side. The battery pack 16 includes a secondary battery such as a lithium ion secondary battery or a nickel hydride secondary battery, and supplies power to a drive mechanism or the like in the body 10 via the printed wiring board 17.

  Here, the position where the printed wiring board 17 is provided is provided in the bridging portion 14, but is not particularly limited as long as it is an empty space portion of the body 10. That is, the printed wiring board 17 may be provided in an empty space part in the body main body 10 a, the grip part 12, or the auxiliary grip part 13. The printed wiring board 17 may be divided and provided at a plurality of locations.

  Explaining the arrangement of the components in the body 10 as described above, the driving mechanism 20 for driving the fastener described above is disposed in the body main body 10a, and the driving mechanism 20 described above is driven in the auxiliary grip portion 13. A drive mechanism 32 is disposed (see FIG. 2).

  By the way, in this driving tool 71, the connection part 72 is provided in the nose reinforcement part of the corner part which the body main body 10a and the nose part 11 make. The connecting portion 72 has a substantially right triangular plate shape and reinforces the nose portion 11 fixed to the body body 10. The inclined surface of the connecting portion 72 is provided with a light emitting portion 73 composed of LEDs that are lit during operation, LEDs for illumination, light bulbs, and the like. As shown in FIG. 18, a harness 74 that electrically connects the light emitting unit 73 and the printed wiring board 17 is disposed inside the connecting portion 72. The shape of the nose reinforcing portion is not particularly limited as long as it can reinforce the nose portion 11 such as a substantially rectangular shape or a substantially sector shape.

  For example, like the above-described connecting portion 66, the connecting portion 72 enters the body main body 10 a and is fixed with a screw or the like, and the harness 74 is led out inside the body 10, and the grip portion 12 or the auxiliary grip portion 13. And connected to the printed wiring board 17.

  In addition to the light emitting unit 73, the connecting unit 72 may include a detection element 61 that detects the movement of the contact arm 11a and a detection element 62 that detects the presence or absence of a fastener.

  Even with such a driving tool 71, the light emitting part 73 and the harness 74 from the detection elements 61 and 62, which are electric parts or electronic parts, are formed at the corner part (nose reinforcing part) formed by the body main body 10a and the nose part 11. It is guided into the body 10 through the connecting portion 72 and is electrically connected to the printed wiring board 17 in the body 10. Therefore, the harness 74 is not exposed to the outside and protected, and the appearance can be improved.

[10. Other variations]
Although the driving tool 1 to which the present invention is applied has been described above, the present invention is also driven by a compressed air type or combustion gas that drives a drive mechanism by compressed air, a combustion gas type, a solenoid type or the like and drives a fastener. You may apply to drive tools, such as a type and a solenoid type. In addition, the drive tool can be provided with various electrical components or electronic components such as various switches, LEDs, and light bulbs depending on the use and function of the drive tool.

DESCRIPTION OF SYMBOLS 1 Driving tool, 10 body, 10a body main body, 11 nose part, 11a contact arm, 11b injection port, 11c driver guide, 11d Wear plate, 12 grip part, 13 auxiliary grip part, 14 bridge part, 15 trigger, 16 battery Pack, 17 printed wiring board, 20 driving mechanism, 21 first fixing member, 21a first supporting portion, 22 second fixing member, 22a second supporting portion, 23 guide rail, 24 pipe, 25 plunger, 25a insertion part, 26 plunger spring, 27 driver, 28 fixed piece, 29 first engagement protrusion, 30 second engagement protrusion, 31a, 31b guide roller, 32 drive mechanism, 33 drive motor, 34 worm, 35 planetary gear mechanism, 36 arm gear, 37 first torque gear, 38 second Luc gear, 39 gear plate, 39a-39c support portion, 41 first torque roller, 42 second torque roller, 43 shock absorber mechanism, 44 weight, 44a large diameter portion, 44b small diameter portion, 45 weight spring, 46 weight stop, 47 Wire, 47a, 47b Projection, 48 Pulley, 50 Magazine, 51 Plate-like connecting band, 52 Magazine body, 53 Slider, 54 Storage portion, 54a Support surface, 55 Guide portion, 56 Guide member, 56a First guide piece, 56b Second guide piece, 56c Positioning wall, 57 Extraction groove, 57a End, 58 Gap, 59 Side wall, 59a Guide piece, 61, 62 Detection element, 63 Harness, 63a Flexible tube, 64 Wiring groove, 65 Blocking Plate, 66 connecting portion, 66a notch, 67 fixing hole, 68 rising wall, 9 out hole, 71 driving tool, 72 connecting portion, 73 light-emitting portion, 74 harness

Claims (6)

A body having a driving mechanism for driving the fastener, a driving mechanism for driving the driving mechanism, and an electric circuit unit;
A nose portion provided on the body and for punching the fastener;
Provided in a direction intersecting the driving direction of the fastener from the nose portion, and a magazine is secured to the body by a connecting portion formed on different ends side to the nose portion,
An electric component or electronic component provided in the magazine is a driving tool electrically connected to the electric circuit portion by a harness inserted in a wiring groove provided inside the connecting portion,
The connecting portion is one of the body or the magazine is constituted enters write useless until inside the other,
Said harness, Ru is derived from the coupling portion in the interior of the body or the magazine
A drive tool characterized by that . In the magazine, the harness is disposed in a wiring groove provided from the nose portion side to the connecting portion side.
The drive tool according to claim 1, wherein: The electrical component or electronic component is a detection switch that detects the presence or absence of a fastener loaded in the magazine.
The drive tool according to claim 1 or 2, wherein The electrical component or the electronic component is a detection switch that detects that a contact arm of a nose portion for driving the fastener is in contact with an object.
Driving tool according to any one of claims 1 claim 3, characterized in that. The electrical component or electronic component is an LED
Driving tool according to any one of claims 1 claim 4, characterized in that. It said body includes a grip portion provided so as to be substantially perpendicular to said main body, and an auxiliary grip portion provided in the main body at a substantially parallel spaced with the grip portion, the grip portion and the auxiliary grip portion Having a bridging portion that bridges the end,
The body body is provided with the driving mechanism,
The auxiliary grip portion is provided with at least a part of the drive mechanism,
The bridging portion is provided with the electric circuit portion,
The connecting portion is provided between the magazine and the auxiliary grip portion.
Driving tool according to any one of claims 1 claim 5, characterized in that.

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