Driving tool

Abstract

To provide an adjustment mechanism of a driving depth which is operated easily and whose state can be easily checked.SOLUTION: A driving tool comprises: an output part 12 including therein an actuation mechanism 15 for performing a driving operation of a fastener when a direction in which a fastener is driven out is a lower direction, and the opposite direction of the lower direction is an upper direction; a grip 11 which is provided continuous to the output part 12 at an almost right angle; a trigger 20 which is provided at a position where the trigger can be operated by the hand gripping the grip 11; a nose part 22 integrally provided at a lower end of the output part 12; and an adjustment operation part 30 which is provided so as to be operated for adjusting the driving depth of the fastener, in which the adjustment operation part 30 is arranged above the grip 11.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to a driving tool for driving a fastener into a driven material, and particularly to a driving tool having a feature in an operating portion for adjusting the driving depth.

Background Art

[0002] As this type of driving tool, there is known one provided with a safety device in which a contact member is disposed at the tip of a nose portion forming a fastener ejection port, and the trigger operation becomes effective only when the contact member is pressed against and slides on the driven material.

[0003] Also, there is known one in which the driving depth of the fastener can be adjusted by adjusting the protruding amount of this contact member.

[0004] For example, Patent Document 1 discloses a driving tool in which the protruding amount of a contact member (contact nose) can be adjusted by a screw-type operating portion (adjustment dial). In this driving tool, when the adjustment dial provided on the tool side surface near the nose portion is rotated, a screw shaft rotates integrally with the adjustment dial. The contact nose has a connecting piece screwed to the screw shaft, and when the screw shaft rotates, the contact nose moves forward and backward in the longitudinal direction of the screw shaft. By moving the contact nose forward and backward in this way, the protruding amount of the contact nose can be adjusted.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Incidentally, the operating mechanism for adjusting the protrusion amount of the contact member, as described above, was conventionally located between the contact member and the trigger. In other words, the operating mechanism was located on the path that transmits to the trigger the sliding motion of the contact member when it is pressed against the material to be driven in. For this reason, the operating mechanism was located on the tip side (contact member side) of the trigger and grip.

[0007] In such conventional configurations, the visibility of the fastening insertion position may be reduced depending on the size and shape of the operating part. In other words, when considering the visibility of the insertion position, there are constraints on the shape and size of the operating part, and there are limitations to improving the operability of the operating part.

[0008] Furthermore, from the perspective of an operator holding the grip, the operating part is located further away than the trigger and grip, making it difficult to check the status of the operating part and operate it without leaning in to look at it.

[0009] Therefore, the object of the present invention is to provide a mechanism for adjusting the driving depth that is easy to operate and allows for easy confirmation of its status. [Means for solving the problem]

[0010] To solve the above-mentioned problems, the present invention provides a fastener driving tool for driving a fastener into a material to be driven, comprising: an output unit with a built-in operating mechanism that performs a fastener driving operation when the direction in which the fastener is ejected is downward and the opposite direction to downward is upward; a grip connected to the output unit at approximately a right angle to the output unit; a trigger provided in a position that can be operated by the hand holding the grip; a nose portion integrally provided at the lower end of the output unit; and an adjustment operation unit provided to be operable for adjusting the driving depth of the fastener, wherein the adjustment operation unit is positioned above the grip. [Effects of the Invention]

[0011] As described above, the present invention features an adjustable operating section, which is operably provided for adjusting the insertion depth of the fastener, positioned above the grip. Therefore, the adjustable operating section can be positioned in a location that is easy to operate while holding the grip. In addition, since the adjustable operating section is easily visible, its status can be easily checked. [Brief explanation of the drawing]

[0012] [Figure 1] This is a side view of the driving tool. [Figure 2] This is a perspective view illustrating the adjustment mechanism for adjusting the protrusion amount of the contact portion. [Figure 3] This is a plan view of the driving tool. [Figure 4] This is a perspective view illustrating the structure of the adjustment control unit. [Figure 5] (a) A side cross-sectional view of the driving tool with the contact portion protruding to the minimum, and (b) A side cross-sectional view of the driving tool with the contact portion protruding to the maximum. [Figure 6] This is an enlarged view of section A in Figure 5(a). [Figure 7] This is an enlarged view of section B in Figure 5(b). [Figure 8] (a) End view of line CC in Figure 5(a), (b) End view of line DD in Figure 5(b). [Figure 9] This is a partially enlarged cross-sectional view showing the contact portion pressed against the material to be driven in and the trigger pulled. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described with reference to the figures.

[0014] The driving tool 10 according to this embodiment drives a fastener into a workpiece. As shown in FIG. 1, this driving tool 10 includes an output unit 12, a grip 11, a trigger 20, a magazine 25, a nose unit 22, a contact unit 23, and an adjustment operation unit 30. In the following description, the direction in which the fastener is driven out is the downward direction, and the opposite direction of the downward direction is the upward direction. Also, when viewed in the extending direction of the grip 11 that is orthogonal to the vertical direction, the output unit 12 side is the front direction, and the grip end 11a side is the rear direction.

[0015] The output unit 12 incorporates an operating mechanism 15 that performs the driving operation of the fastener inside a cylindrical body housing. The driving tool 10 according to this embodiment incorporates a pneumatic operating mechanism 15 that drives the fastener by the pressure of compressed air. Note that this operating mechanism 15 is merely an example, and the operating mechanism 15 may be provided with other power sources (for example, a gas combustion type operating mechanism 15 or an electric type operating mechanism 15, etc.).

[0016] As shown in FIG. 5, the operating mechanism 15 includes a cylinder 16, a piston 17, and a driver 18. Specifically, the piston 17 is slidably accommodated inside the cylindrical cylinder 16, and a driver 18 for striking the fastener is coupled and provided on the lower surface of the piston 17. When compressed air is supplied to the upper surface of the piston 17, the piston 17 descends impactfully, and the fastener is driven downward by the driver 18 that operates integrally with the piston 17.

[0017] Note that the upper surface 12a of this output unit 12 is a flat surface. As shown in FIG. 3, a position indicating portion 12b and a rotation direction indicating portion 12c are provided on the upper surface 12a of the output unit 12. The position indicating portion 12b is characters or symbols displayed on the upper surface 12a of the output unit 12, and is a mark that serves as a reference when reading the position of the adjustment operation unit 30 described later. Also, the rotation direction indicating portion 12c is characters or symbols displayed on the upper surface 12a of the output unit 12, and is a mark that indicates the operation direction of the adjustment operation unit 30 described later.

[0018] The grip 11 is a rod-shaped part that an operator holds when using the driving tool 10. This grip 11 is connected to the above-described output part 12 at a substantially right angle and extends behind the output part 12. A trigger 20 is provided at a position on the grip 11 that can be operated by the hand holding the grip 11. Specifically, the trigger 20 is arranged at a position where the index finger touches when the operator holds the grip 11 (below the vicinity of the front end of the grip 11), and the trigger 20 can be pulled and operated with the index finger. This trigger 20 is for operating the driving of the fastener. That is, the operating mechanism 15 operates on the condition that the trigger 20 is operated, and the fastener is driven.

[0019] The magazine 25 is for storing a connected fastener formed by connecting a plurality of fasteners. The connected fasteners stored in this magazine 25 are sequentially supplied to the nose part 22 described later and are held so that the leading fastener is positioned directly below the driver 18.

[0020] The nose part 22 is a part integrally provided at the lower end of the output part 12. Although not particularly shown, a fastener supply mechanism is provided behind the nose part 22. By operating this fastener supply mechanism in conjunction with the driving operation, the fasteners stored in the magazine 25 are automatically supplied to the nose part 22 one by one.

[0021] An injection path for guiding the injection of the fastener is formed inside this nose part 22. The fasteners supplied by the fastener supply mechanism will wait in this injection path. When the above-described driver 18 slides in the direction of the nose part 22, the fasteners waiting in the injection path are ejected from the tip 22a of the nose part.

[0022] This nose part 22 is fixed to the lower end of the output part 12 and is integrally formed with the output part 12 or is immovably fixed to the output part 12.

[0023] The contact portion 23 is provided so as to protrude from the lower end of the nose portion 22 and is a portion that can be pressed against the material to be driven in. In this embodiment, the contact portion 23 is provided with a cylindrical guide path, and this guide path is in communication with the injection path of the nose portion 22. Therefore, the fastener that is ejected from the tip of the nose portion 22 passes through the contact portion 23 and is driven into the material to be driven in.

[0024] The contact portion 23 is slidable vertically relative to the nose portion 22 and is biased to protrude downward in its natural state. By pressing the contact portion 23 against the material to be fastened and pushing it upward, the safety mechanism (described later) is released, and the fastener can be driven in. On the other hand, when the contact portion 23 is not pushed upward, the safety mechanism disables the operation of the trigger 20, so that the fastener will not be driven in even if the trigger 20 is operated.

[0025] The adjustment operation unit 30 is provided to be operable for adjusting the insertion depth of the fastener. By operating this adjustment operation unit 30, the amount of protrusion of the contact portion 23 in its natural state can be adjusted within a predetermined range, thereby adjusting the insertion depth of the fastener. For example, as shown in Figure 5(a), if the amount of protrusion of the contact portion 23 is reduced, the distance from the tip of the nose portion 22a to the tip of the contact portion 23a becomes smaller, so the fastener can be inserted deeper. On the other hand, as shown in Figure 5(b), if the amount of protrusion of the contact portion 23 is increased, the distance from the tip of the nose portion 22a to the tip of the contact portion 23a becomes larger, so the fastener is inserted shallowly (resulting in a so-called "floating insertion" state).

[0026] In this embodiment, the adjustment operation unit 30 is positioned above the grip 11 so that it can be easily operated by the user while holding the grip 11. Specifically, as shown in Figure 3, the adjustment operation unit 30 is positioned on the upper surface 12a of the output unit 12. The adjustment operation unit 30 in this embodiment is a rotatable dial and is fixed to the upper surface 12a of the output unit 12 via a rotating shaft 32. In addition, a knob shape 33 with irregularities is formed on the circumferential surface of the adjustment operation unit 30 so that it can be easily operated by the user's hand.

[0027] As shown in Figure 3, the upper surface of the adjustment operation unit 30 is visible from above, and a display unit 31 for checking the fastener's insertion depth (the amount of protrusion of the contact portion 23) is formed on this upper surface. This display unit 31 has scaled numerical values ​​along the circumferential direction, and the fastener's insertion depth can be checked by determining where the position indicator 12b on the upper surface 12a of the output unit 12 is pointing on the scale of the display unit 31. Since the display unit 31 is positioned so that it can be seen when the fastening tool 10 is viewed from above, the fastener's insertion depth can be easily checked by looking at it from above without having to peer into the tool. In addition, a rotation direction indicator 12c is provided near the display unit 31 to indicate which direction to rotate the adjustment operation unit 30 to set the fastener's insertion depth deeper (or shallower), so that the user can operate the adjustment operation unit 30 without confusion.

[0028] As shown in Figure 4, an operating gear 46 that rotates integrally with the adjustment operating unit 30 is provided on the lower side of the adjustment operating unit 30. This operating gear 46 meshes with a smaller transmission gear 47. By combining these two gears of different sizes, a speed-increasing mechanism 45 is formed that increases the rotation speed of the adjustment operating unit 30. For example, the downstream gear can be rotated multiple times while the adjustment operating unit 30 rotates once. Therefore, the downstream side can be operated significantly with a small amount of operation.

[0029] In this embodiment, by using such a speed-increasing mechanism 45, the operable range of the adjustment operation unit 30 is set to less than one rotation (the rotatable range of the adjustment operation unit 30 is restricted to a predetermined range of less than one rotation). By setting the operable range of the adjustment operation unit 30 to less than one rotation, it is possible to display the fastener insertion depth (the amount of protrusion of the contact portion 23) using the scale on the display unit 31.

[0030] The rotational motion of the speed-increasing mechanism 45 described above is transmitted to the downstream gear group via the transmission shaft 48. The transmission shaft 48 is a shaft member that rotates integrally with the transmission gear 47 and extends downward from the transmission gear 47. This transmission shaft 48 is arranged parallel to the shaft of the output unit 12 (the shaft of the cylinder 16) along the side surface (the rear side surface in this embodiment) of the output unit 12 on the grip 11 side. Because the transmission shaft 48 in this embodiment can transmit the amount of operation of the adjustment operation unit 30 to below the trigger 20, conventional safety mechanisms (such as the internal lever 57 and trigger valve stem 56, which will be described later) located below the trigger 20 can be used as is. The first intermediate gear 50 is integrally attached to the lower end of this transmission shaft 48. The rotational motion transmitted from the speed-increasing mechanism 45 is finally transmitted to the shaft support gear 40 via the first intermediate gear 50, the second intermediate gear 51, and the third intermediate gear 52, and converted into linear motion. These gears (first intermediate gear 50, second intermediate gear 51, third intermediate gear 52, and shaft support gear 40) are located below the trigger 20.

[0031] Figure 2 illustrates the mechanism that converts the rotational motion transmitted to the shaft support gear 40 described above into linear motion. As shown in this figure, a trigger support 35, a sliding shaft 37, and a trigger pressing piece 38 are arranged inside the housing near the trigger 20.

[0032] The trigger support portion 35 is fixed inside the housing. This trigger support portion 35 pivotably supports the trigger 20 via a pivot shaft portion 35a. A trigger spring 55 is positioned between the trigger support portion 35 and the trigger 20. The trigger spring 55 biases the front end portion 20a of the trigger 20 upward, so that in its natural state, the rear portion of the trigger 20 (the part where the finger is placed) protrudes downward.

[0033] The sliding shaft 37 is a shaft member that is mounted through the shaft support gear 40 and is capable of sliding vertically. The sliding shaft 37 has an insertion portion 37b formed on the upper side when viewed in the axial direction, and a threaded portion 37a formed on the lower side.

[0034] The threaded portion 37a is the part with threads cut into its outer circumference. The connecting portion 36a of the arm 36, as shown in Figure 2, engages with this threaded portion 37a.

[0035] The arm 36 that engages with the threaded portion 37a is a member for connecting the sliding shaft 37 and the contact portion 23. Its upper end engages with the sliding shaft 37 (threaded portion 37a), and its lower end is fixed to the contact portion 23. This arm 36 has a predetermined rigidity and extends vertically along the side surface of the nose portion 22. Since this arm 36 moves vertically integrally with the contact portion 23, it can transmit the pushing motion of the contact portion 23 to the vicinity of the trigger 20. This arm 36 may be located inside the cover member that covers the nose portion 22.

[0036] The upper end of the arm 36 is provided with a connecting portion 36a that screws into the threaded portion 37a. The inside of the connecting portion 36a has a female thread, which meshes with the threaded portion 37a. As a result, when the sliding shaft 37 (threaded portion 37a) rotates, the arm 36 moves in the axial direction (up and down) of the sliding shaft 37. In other words, as the sliding shaft 37 rotates, the contact portion 23 moves up and down in conjunction with the arm 36, and the amount of protrusion of the contact portion 23 changes.

[0037] The insertion portion 37b is a part that slidably and non-rotatably engages with the shaft support gear 40. Specifically, as shown in Figure 2, a non-circular through hole 40a is formed in the center of the shaft support gear 40, and the insertion portion 37b is slidably inserted into this through hole 40a. The shape of the through hole 40a and the shape of the insertion portion 37b are such that they engage with each other non-rotatably. In this embodiment, the key portion 37c of the insertion portion 37b engages with the keyway portion 40b of the through hole 40a, so that when the shaft support gear 40 rotates, the sliding shaft 37 rotates integrally with it. Therefore, when the adjustment operation portion 30 is rotated and the shaft support gear 40 rotates, the sliding shaft 37 rotates integrally with the shaft support gear 40, and the amount of protrusion of the contact portion 23 changes. On the other hand, when the contact portion 23 is pushed in, the sliding shaft 37 moves upward along the through hole 40a of the shaft support gear 40.

[0038] The trigger pressing piece 38 is a component that engages with the internal lever 57 (described later) when the contact portion 23 is pressed against the material to be driven, thereby enabling the operation of the trigger 20. This trigger pressing piece 38 is mounted so as to be vertically movable relative to the trigger support portion 35. A contact spring 39 is positioned between the trigger support portion 35 and the trigger pressing piece 38. The contact spring 39 biases the trigger pressing piece 38 downward, so that in its natural state, the trigger pressing piece 38 is pushed down to a position where it interferes with the trigger support portion 35.

[0039] Furthermore, since the lower surface of the trigger pressing piece 38 is in contact with the upper end of the sliding shaft 37 (see Figure 6, etc.), when the trigger pressing piece 38 is pushed down by the contact spring 39, the sliding shaft 37 is also pushed down, and in other words, the arm 36 and the contact portion 23 are also pushed down. From this state, by pressing the contact portion 23 against the material to be driven, the sliding shaft 37 slides upward along the through hole 40a against the biasing force of the contact spring 39, and the trigger pressing piece 38 is pushed upward by the sliding shaft 37.

[0040] When the trigger pressing piece 38 is pushed upward, as shown in Figure 9, the pressing portion 38a, which is formed to protrude toward the trigger 20, pushes the internal lever 57 upward. The internal lever 57 is a lever that is pivotably mounted inside the trigger 20 via a lever pivot shaft 57a and is positioned to push the trigger valve stem 56. When the trigger 20 is operated with the internal lever 57 pushed upward in this manner, the internal lever 57 pushes the trigger valve stem 56 upward, and the operating mechanism 15 is activated. On the other hand, the trigger valve stem 56 will not be pushed upward unless the trigger pressing piece 38 pushes the internal lever 57 upward and the trigger 20 is operated. Therefore, even if the trigger 20 is operated without pressing the contact portion 23 against the material to be driven in, the fastener will not be driven out.

[0041] In the above explanation, a safety mechanism was described in which the trigger valve stem 56 is pushed by the internal lever 57 to prevent accidental operation during firing. However, it goes without saying that other safety mechanisms (for example, a safety mechanism using a microswitch) may also be used.

[0042] With this configuration, the amount of protrusion of the contact portion 23 can be adjusted by operating the adjustment operation part 30 located above the grip 11. In this embodiment, the amount of protrusion of the contact portion 23 can be adjusted within the range from the position shown in Figure 5(a) (the position with the minimum protrusion) to the position shown in Figure 5(b) (the position with the maximum protrusion).

[0043] When the protrusion amount of the contact portion 23 is minimized, as shown in Figure 6, the connecting portion 36a of the arm 36 is located near the upper end of the threaded portion 37a of the sliding shaft 37, and the arm 36 and the contact portion 23 are pulled upward relative to the tool body.

[0044] On the other hand, when the protrusion amount of the contact portion 23 is maximized, as shown in Figure 7, the connecting portion 36a of the arm 36 moves below the threaded portion 37a of the sliding shaft 37, and the arm 36 and the contact portion 23 are pulled downward relative to the tool body.

[0045] In this way, when the sliding shaft 37 rotates, the arm 36 moves up and down along the axial direction of the sliding shaft 37, thereby adjusting the amount of protrusion of the contact portion 23.

[0046] In conventional designs, moving the arm 36 up and down significantly along the axial direction of the screw portion 37a required rotating the dial multiple times, resulting in poor operability. In contrast, this embodiment allows the arm 36 to move up and down significantly by rotating the screw portion 37a multiple times without having to rotate the adjustment operation unit 30 once, thus improving operability.

[0047] Furthermore, in conventional structures, the tip of the screw was supported in order to limit the operating range of the screw. In such conventional structures, if the screw was rotated too much, the screw could get stuck in the screw receiving part, making it impossible to operate the screw. In this respect, according to this embodiment, since a rotation stopper is provided for the adjustment operating part 30, the screw getting stuck as described above can be prevented.

[0048] For example, to restrict the rotation range of the adjustment operating part 30, a restricting part 60 as shown in Figure 8 may be provided to stop the rotation of the adjustment operating part 30. The restricting part 60 is a projection or pin fixed to the housing. Then, an engaging part 46a that engages with the restricting part 60 can be provided on the member on the adjustment operating part 30 side (for example, the operating part gear 46). When this engaging part 46a engages with the restricting part 60, the rotation of the adjustment operating part 30 can be stopped. In the example shown in Figure 8, when the adjustment operating part 30 is rotated clockwise, the amount of protrusion of the contact part 23 decreases, and when it is rotated counterclockwise, the amount of protrusion of the contact part 23 increases. When the amount of protrusion of the contact part 23 is at its minimum, as shown in Figure 8(a), the engaging part 46a engages with the restricting part 60, restricting the adjustment operating part 30 from rotating further clockwise. Furthermore, when the protrusion of the contact portion 23 reaches its maximum, as shown in Figure 8(b), the engaging portion 46a engages with the restricting portion 60, thereby restricting the adjustment operation portion 30 from rotating further counterclockwise. In this way, the operating range can be restricted by preventing the adjustment operation portion 30 from rotating.

[0049] As described above, in this embodiment, the adjustment operating part 30, which is operably provided for adjusting the amount of protrusion of the contact part 23, is positioned above the grip 11. Therefore, the adjustment operating part 30 can be positioned in a location that is easy to operate while holding the grip 11. In addition, since the adjustment operating part 30 is easily visible, its status can be easily checked.

[0050] Furthermore, by positioning the adjustment control unit 30 on the upper surface 12a of the output unit 12, the adjustment control unit 30 can be positioned using a large space, allowing for free setting of its shape and size. For example, increasing the size of the adjustment control unit 30 makes it easier to handle and improves operability. In addition, increasing the outer diameter of the adjustment control unit 30 can reduce the increase in operating load caused by the installation of the speed-increasing mechanism 45.

[0051] In this embodiment, the adjustment operation unit 30 is located on the upper surface 12a of the output unit 12, but it is not limited to this, and the adjustment operation unit 30 may also be located on the side of the output unit 12. Even in this case, the adjustment operation unit 30 can be made easier to operate and check compared to the conventional design.

[0052] Furthermore, the tool is equipped with a display unit 31 for checking the fastener driving depth, and the display unit 31 is positioned so that it can be seen when the driving tool 10 is viewed from above. For example, the display unit 31 is located on the adjustment operation unit 30. With this configuration, the status of the adjustment operation unit 30 can be easily checked from above. For example, the settings can be checked even during the driving operation.

[0053] Furthermore, it is equipped with a speed-increasing mechanism 45 that increases the speed at which the adjustment operation unit 30 is operated and transmitted. Specifically, the speed-increasing mechanism 45 increases the rotation speed of the adjustment operation unit 30, and converts the rotational motion transmitted from the speed-increasing mechanism 45 into linear motion, thereby moving the contact unit 23 up and down. With this configuration, the fastener insertion depth can be greatly changed with a small amount of operation.

[0054] Furthermore, since it is equipped with a restricting unit 60 that restricts the rotation range of the adjustment operation unit 30, a screw receiver like in conventional models is not required, and screw jamming can be prevented.

[0055] In the embodiment described above, a mechanism was described in which rotational motion is converted into linear motion by a screw (sliding shaft 37) to adjust the driving depth of the fastener (the amount of protrusion of the contact portion 23). However, the mechanism is not limited to this, and the driving depth of the fastener may be adjusted by other means. For example, a cam or the like may be used to convert rotational motion into linear motion and adjust the amount of protrusion of the contact portion 23. [Explanation of Symbols]

[0056] 10. Driving tools 11 Grips 11a Grip End 12 Output section 12a Top side 12b Position indicator 12c Rotation direction indicator 15 Operating mechanism 16 cylinders 17 Pistons 18 Drivers 20 triggers 20a Front end 22 Nose section 22a Nose tip 23 Contact section 23a Contact tip 25 Magazine 30 Adjustment operation section 31 Display section 32 Rotation axis 33 Knob Shapes 35 Trigger support 35a Swivel shaft 36 Arms 36a Connecting part 37 Sliding shaft 37a Threaded part 37b Insertion section 37c Key section 38 Trigger Press Piece 38a Pressing part 39 Contact spring 40 Shaft support gear 40a Through hole 40b Keyway 45 Speed-increasing mechanism 46 Operating gear 46a Engagement part 47 Transmission gears 48 Transmission shaft 50 First intermediate gear 51 Second Intermediate Gear 52 Third Intermediate Gear 55 Trigger spring 56 Trigger valve stem 57 Internal Lever 57a Lever pivot axis 60 Regulatory Department

Claims

1. A fastener driving tool for driving a fastener into a material to be driven, wherein the direction in which the fastener is driven out is downward, and the direction opposite to the downward direction is upward, An output unit incorporating an operating mechanism that performs the fastening operation, A grip is connected to the output section at approximately a right angle, A trigger is provided in a position that can be operated by the hand holding the grip, A nose section integrally provided at the lower end of the output section, A contact portion that protrudes from the aforementioned nose portion and can be pressed against the material to be driven, An adjustment mechanism is provided to adjust the insertion depth of the zipper, Equipped with, The adjustment operation unit adjusts the insertion depth of the fastener by adjusting the amount of protrusion of the contact portion. When the amount of protrusion of the contact portion from the nose portion is reduced, the fastener can be inserted deeper. Conversely, when the amount of protrusion of the contact portion from the nose portion is increased, the fastener can be inserted shallowly. The adjustment operating part is positioned above the grip, The system includes a speed-increasing mechanism that increases the speed of the operation amount of the adjustment operation unit and transmits it to the contact unit. Driving tool.

2. A fastener driving tool for driving a fastener into a material to be driven, wherein the direction in which the fastener is driven out is downward, and the direction opposite to the downward direction is upward, An output unit incorporating an operating mechanism that performs the fastening operation, A grip is connected to the output section at approximately a right angle, A trigger is provided in a position that can be operated by the hand holding the grip, A nose section integrally provided at the lower end of the output section, A contact portion that protrudes from the aforementioned nose portion and can be pressed against the material to be driven, An adjustment mechanism is provided to adjust the insertion depth of the zipper, Equipped with, The adjustment operation unit adjusts the insertion depth of the fastener by adjusting the amount of protrusion of the contact portion. When the amount of protrusion of the contact portion from the nose portion is reduced, the fastener can be inserted deeper. Conversely, when the amount of protrusion of the contact portion from the nose portion is increased, the fastener can be inserted shallowly. The adjustment operating part is positioned above the grip, The system includes a transmission mechanism that transmits the amount of operation of the adjustment control unit to the contact unit below the trigger. Driving tool.

3. The transmission shaft constituting the transmission mechanism is arranged parallel to the axis of the output unit. The driving tool according to claim 2.

4. The transmission shaft constituting the transmission mechanism is arranged along the side surface of the output section on the grip side. The driving tool according to claim 3.

5. The adjustment operation unit is located on the upper surface of the output unit. The driving tool according to any one of claims 1 to 4.

6. The upper surface of the adjustment operation section is provided with a display section for checking the insertion depth of the fastener. The display unit is positioned so that it can be seen when the driving tool is viewed from above. A driving tool according to any one of claims 1 to 5.

7. The display unit is provided on the adjustment operation unit. The driving tool according to claim 6.

8. The adjustment operation unit is provided so as to be rotatable, In order to restrict the amount of protrusion of the contact portion to within a predetermined range, a rotation stopper is provided to restrict the rotation range of the adjustment operating portion. A driving tool according to any one of claims 1 to 7.

9. The aforementioned rotation stopper sets the operable range of the adjustment operation unit to less than one rotation. The driving tool according to claim 8.

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