JP2022087969A - Driving tool - Google Patents

Abstract

To provide a driving tool capable of making the lift of an injection port small during oblique driving while securing strength of a contact part.SOLUTION: A driving tool 10 for launching a fastener from an injection port 33b formed at the tip of a nose part 17 has a contact part 30 provided at the tip of the nose part 17. The contact part 30 has a tubular part 33 that forms the injection port 33b. The tip of the tubular part 33 is provided with a thin-walled part 34a that is formed in a thinner-walled shape than other parts when seen from a circumferential direction.SELECTED DRAWING: Figure 2

Description

The present invention relates to a driving tool for driving a fastener such as a nail or a pin into a material to be driven, and particularly to a driving tool having a structure advantageous for diagonal driving of the fastener.

When using this type of driving tool, for example, when nailing to a corner such as a wall, the work of driving a nail diagonally to the material to be driven (diagonal driving) may occur. In such diagonal striking, the contact area between the material to be driven and the tip of the tool is narrowed, so that the tip of the tool becomes slippery on the surface of the material to be driven.

In order to solve such a problem, a driving tool in which a spike claw for diagonal driving is provided at the tip of a contact portion in contact with the material to be driven is known (see, for example, Patent Document 1). In such a conventional driving tool, the tip of the tool is positioned by piercing the spiked claw into the material to be driven at the time of diagonal driving.

Japanese Patent No. 660467

By the way, when an attempt is made to strike diagonally with a conventional driving tool, the injection port is in a state of floating from the driving surface by the thickness of the tip of the contact portion. Therefore, there is a problem that the fastener cannot be driven deeply. If the thickness of the tip of the contact portion is reduced, the floating of the injection port can be reduced, but the strength of the contact portion may be insufficient and the durability may be lowered.

Therefore, the first object of the present invention is to provide a driving tool capable of reducing the lift of the injection port when the contact portion is hit diagonally while ensuring the strength of the contact portion.

In addition, the conventional driving tool is equipped with spike claws for the purpose of suppressing the positional deviation when driving diagonally, but the spike claws do not work well depending on the direction of the contact portion, and the effect of suppressing the positional deviation when driving is effective. There was a problem that it could not be obtained sufficiently.

Therefore, a second object of the present invention is to provide a driving tool capable of stabilizing the machine regardless of the direction in which the contact portion is applied when performing diagonal driving work.

In order to solve the first problem described above, the first invention is a driving tool for injecting a fastener from an injection port formed at the tip of the nose portion, and the tip of the nose portion is provided with a contact portion. The contact portion has a tubular portion forming the injection port, and the tip of the tubular portion is provided with a thin-walled portion formed to be thinner than other portions when viewed in the circumferential direction. ..

Further, in order to solve the above-mentioned second problem, the second invention is a driving tool for injecting a fastener from an injection port formed at the tip of the nose portion, and the tip of the nose portion is provided with a contact portion. The contact portion is provided with a plurality of claw portions arranged so as to surround the ejection port, and the tip of the contact portion is provided so that the central axis of the ejection port is 45 degrees with respect to a flat driving surface. Is configured to come into contact with the driving surface when at least three of the claws are brought into contact with the driving surface.

The first invention is as described above, and the tip of the tubular portion is provided with a thin-walled portion formed to be thinner than the other portions when viewed in the circumferential direction. According to such a configuration, by bringing the thin-walled portion into contact with the driving surface, the injection port can be brought as close as possible to the driving surface, so that the fastener can be driven deeply. Further, since it is not necessary to thin the entire contact portion, the strength of the contact portion is not significantly impaired.

Further, the second invention is as described above, and when the tip of the contact portion is brought into contact with the driving surface so that the central axis of the injection port is 45 degrees with respect to the flat driving surface, at least three. The claw portion is configured to come into contact with the driving surface. According to such a configuration, since the machine can be supported by three or more claws at a general diagonal striking angle, the machine can be stabilized regardless of the direction in which the contact portions are brought into contact with each other. Further, since it is not necessary to provide a large claw portion as in the conventional case and the machine can be stabilized by a small claw portion, the tip portion does not become large and the visibility of the work portion at the tip of the nose portion can be improved.

It is an external view of a driving tool. It is a perspective view of the nose part which concerns on 1st Embodiment. In (a) side view, (b) bottom view, A1-A1 line sectional view shown in (c) (b), and B1 part enlarged view shown in (d) (c) of the nose portion according to the first embodiment. be. It is a perspective view of the nose part which concerns on 1st Embodiment, and is the figure of the state which the contact part is rotated. It is a perspective view of the nose part which concerns on the modification 1 of 1st Embodiment. (A) side view, (b) bottom view, A2-A2 line sectional view shown in (c) (b), B2 shown in (d) (c) of the nose portion according to the first modification of the first embodiment. It is a part enlarged view. It is a perspective view of the nose part which concerns on the modification 2 of 1st Embodiment. (A) side view, (b) bottom view, A3-A3 line sectional view shown in (c) (b), B3 shown in (d) (c) of the nose portion according to the first modification of the first embodiment. It is a part enlarged view. It is a perspective view of the nose part which concerns on 2nd Embodiment. In (a) side view, (b) bottom view, A4-A4 line sectional view shown in (c) (b), and B4 part enlarged view shown in (d) (c) of the nose portion according to the second embodiment. be. It is (a) front view, (b) side view, (c) perspective view which shows the state which three claws are pierced by the 2nd Embodiment. It is (a) front view, (b) side view, (c) perspective view which shows the state which four claws are pierced by 2nd Embodiment. It is a perspective view of the nose part which concerns on the modification 1 of the 2nd Embodiment. (A) side view, (b) bottom view, (c) (b) A5-A5 line sectional view, and (d) (c) B5 of the nose portion according to the first modification of the second embodiment. It is a part enlarged view. It is a perspective view of the nose part which concerns on the modification 2 of the 2nd Embodiment. (A) side view, (b) bottom view, A6-A6 line sectional view shown in (c) (b), and B6 shown in (d) (c) of the nose portion according to the second modification of the second embodiment. It is a part enlarged view. It is a perspective view of the nose part which concerns on the modification 3 of the 2nd Embodiment. It is (a) side view of the nose part which concerns on modification 3 of 2nd Embodiment, and is the B7 part enlarged view shown in (b) (a).

(First Embodiment)
The driving tool 10 according to the present embodiment ejects a fastener from an injection port 33b formed at the tip of a nose portion 17.

Since the structure of the driving tool 10 is well known, it will not be described in detail, but for example, it is powered by compressed air, gas, electricity, etc., and has a configuration as shown in FIG. The driving tool 10 shown in FIG. 1 includes a grip 11 formed in a rod shape for the operator to grip. Further, a trigger 12 that can be pulled is arranged at a position where the index finger touches when the grip 11 is gripped by the operator. When the trigger 12 is pulled, an internal drive mechanism (piston cylinder mechanism, spring mechanism, etc.) is activated to drive the fastener.

An output unit 16 is connected to the upper end of the grip 11 so as to be substantially orthogonal to the grip 11. A nose portion 17 is formed so as to protrude from the tip of the output portion 16. The nose portion 17 is fixed to the tip of the output portion 16. A guide path for the fastener is formed inside the nose portion 17, and the outlet of the guide path for the fastener is an injection port 33b. A drive mechanism is built in the output unit 16, and a fastener is ejected from the nose unit 17 when the drive mechanism is operated. Specifically, inside the output unit 16, a driver for launching the fastener is guided in the direction of the nose unit 17 so as to be slidable. When the drive mechanism is activated, the driver shockably slides in the direction of the nose portion 17, and the tip of the driver launches a fastener waiting in the guide path of the nose portion 17.

A magazine 14 containing a connecting fastener is connected to the rear of the nose portion 17, and the fasteners in the magazine 14 are sequentially supplied into the guide path of the nose portion 17 by a fastener supply mechanism (not shown). It has become.

A contact nose 20 is provided at the tip of the nose portion 17 according to the present embodiment so as to be slidable. The contact nose 20 is connected to a contact arm provided so as to be reciprocally movable with respect to the output unit 16, and moves integrally with the contact arm. In the natural state, the contact nose 20 is urged so as to project toward the tip end, and in this state, the fastener cannot be driven. On the other hand, when the tip of the contact nose 20 is pressed against the material to be driven, the contact arm moves together with the contact nose 20, the safety mechanism is released, and the fastener can be driven.

As shown in FIG. 2, the contact nose 20 according to the present embodiment includes a main body portion 21 and a contact portion 30.

The main body portion 21 is a member connected to the tool main body side, and is connected to the contact arm in the present embodiment. The main body 21 does not necessarily have to be connected to the contact arm. For example, the main body portion 21 may be fixed so as not to move to the tip of the output portion 16 (nose portion 17). Further, the main body portion 21 may be integrally formed with the nose portion 17. Further, the main body portion 21 may be integrally formed at the tip of the contact arm.

As shown in FIG. 3C, the main body portion 21 according to the present embodiment includes a tubular portion 21b for attaching the contact portion 30. A ring holding groove 21a is recessed in a circumferential shape on the inner peripheral surface of the tubular portion 21b. The O-ring 22 is inserted into the ring holding groove 21a in a compressed state.

The contact portion 30 is a portion that comes into contact with the material to be driven when the fastener is driven. The contact portion 30 according to the present embodiment is rotatably attached to the main body portion 21, whereby, as shown in FIGS. 2 and 4, the contact portion 30 becomes rotatable with respect to the central axis X of the injection port 33b. There is. If the contact portion 30 is not rotatable, the contact portion 30 may be fixed to the main body portion 21, or the contact portion 30 may be integrally formed with the main body portion 21.

As shown in FIG. 3C, the contact portion 30 includes an insertion portion 31 that is inserted into the main body portion 21, and a tubular portion 33 that protrudes toward the tip of the main body portion 21.

The insertion portion 31 is formed in a cylindrical shape that matches the inner diameter of the main body portion 21, and an engagement groove 31a is formed on the outer peripheral surface. The engaging groove 31a is a shallow groove that engages with the O-ring 22. When the insertion portion 31 is inserted into the main body portion 21 to a position where it abuts on the flange portion 32, the O-ring 22 engages with the engagement groove 31a as shown in FIG. It is designed not to fall out. However, the contact portion 30 can be removed from the main body portion 21 by pulling out the contact portion 30 with sufficient force to elastically deform the O-ring 22. Further, by connecting the contact portion 30 and the main body portion 21 by using the O-ring 22 in this way, the contact portion 30 is rotatable in the circumferential direction of the O-ring 22 with respect to the main body portion 21.

The tubular portion 33 is a cylindrical portion as shown in FIG. 3C, and projects toward the tip of the main body portion 21. An injection path 33a for guiding the fastener is formed in the hollow portion of the tubular portion 33. The injection path 33a communicates with the inside of the nose portion 17 and forms a part of the guide path of the fastener described above. Further, an injection port 33b for injecting a fastener is opened at the end of the injection path 33a.

As shown in FIG. 3D, the tubular portion 33 according to the present embodiment has a tapered portion 34 formed on the outer peripheral surface of the tip portion forming the injection port 33b. The tapered portion 34 is formed so that the outer diameter gradually decreases toward the tip end. By providing the tapered portion 34, the injection port 33b can be brought as close as possible to the driving surface when hitting diagonally. Since the nail can be driven deeply by bringing the injection port 33b close to the driving surface, it is possible to reduce the lifting of the nail when the nail is driven diagonally.

Further, the tapered portion 34 is provided with a thin-walled portion 34a formed to be thinner than other portions (non-thin-walled portion 34b) when viewed in the circumferential direction. The thin-walled portion 34a is provided in a shape in which the outer peripheral surface of the tip of the tubular portion 33 is cut out, and is formed so as not to protrude from the outer shape of the tubular portion 33. The surface of the thin-walled portion 34a according to the present embodiment is a flat surface. Further, the surface of the thin-walled portion 34a according to the present embodiment is inclined at an angle different from the surface of the non-thin-walled portion 34b, and as shown in FIG. 3C, the angle of the surface of the thin-walled portion 34a is larger. The angle is closer to parallel to the central axis X of the injection port 33b than the angle of the surface of the non-thin wall portion 34b. Further, the tip surface 35 of the tubular portion 33 in the thin-walled portion 34a is formed to be thinner than the tip surface 35 of the tubular portion 33 in the non-thin-walled portion 34b.

With such a configuration, by bringing the thin-walled portion 34a into contact with the driving surface when striking diagonally, the injection port 33b can be brought closer to the driving surface than the non-thin-walled portion 34b is brought into contact with the driving surface.

In addition, when the contact portion 30 is brought into contact with the driving surface diagonally for diagonal striking, the non-thin wall portion 34b may come into contact with the driving surface instead of the thin wall portion 34a depending on how the contact portion 30 is applied. There is also. In such a case, by rotating the contact portion 30 as shown in FIG. 4, the thin-walled portion 34a can be adjusted so as to come into contact with the driving surface.

In the present embodiment, as shown in FIG. 3B, thin-walled portions 34a and non-thin-walled portions 34b are alternately arranged, and a plurality of thin-walled portions 34a are evenly spaced in the circumferential direction of the tubular portion 33. It is provided in. Specifically, three thin-walled portions 34a are provided at equal intervals in the circumferential direction of the tubular portion 33, that is, they are arranged at an angle of 120 degrees. With such a configuration, it is easy to bring the thin-walled portion 34a into contact with the driving surface. Even if the thin-walled portion 34a does not come into contact with the driving surface, the thin-walled portion 34a can be brought into contact with the driving surface by slightly rotating the contact portion 30.

Further, as shown in FIG. 3D and the like, a protruding portion 36 projecting to the outer peripheral side is provided on the outer peripheral surface of the tubular portion 33 described above. A plurality of claw portions 36a are formed at the tip of the protruding portion 36. The claw portion 36a has a sharp shape sharpened in the same direction as the ejection direction of the fastener, and is used for hooking on the material to be driven when the fastener is slanted. The claw portion 36a is formed so as not to protrude in the tip direction from the tip surface 35 of the tubular portion 33, and when flat driving (work of driving a nail perpendicular to the material to be driven) is performed. The claw portion 36a does not hit the driving surface. In the present embodiment, the claw portion 36a is always arranged on the outer peripheral side of the thin-walled portion 34a when viewed in the radial direction D of the tubular portion 33. Therefore, when the thin-walled portion 34a is brought into contact with the driving surface by diagonal striking, the claw portion 36a always faces the driving surface.

In this embodiment, a plurality of (two in this embodiment) claw portions 36a are arranged on the outer peripheral side of the thin wall portion 34a. By arranging the plurality of claw portions 36a in this way, the machine can be supported at a plurality of points, so that the posture of the machine at the time of driving can be stabilized.

Further, in the present embodiment, the claw portion 36b is also arranged on the outer peripheral side of the non-thin wall portion 34b. The claw portion 36b on the outer peripheral side of the non-thin wall portion 34b is formed so as to project toward the tip end larger than the claw portion 36a on the outer peripheral side of the thin wall portion 34a. With this configuration, when the thin-walled portion 34a comes into contact with the driving surface by diagonal striking, the large claw portion 36b can be hooked on the driven material on the side portion of the thin-walled portion 34a, and the posture of the machine is further increased. Can be stabilized.

The present embodiment is as described above, and the tip of the tubular portion 33 is provided with a thin-walled portion 34a formed to be thinner than the other portions when viewed in the circumferential direction. According to such a configuration, by bringing the thin-walled portion 34a into contact with the driving surface, the injection port 33b can be brought as close as possible to the driving surface, so that the fastener can be driven deeply. Further, since only a part of the contact portion 30 is thinned, the strength of the contact portion 30 is not significantly impaired.

In the above-described embodiment, the claw portion 36a having a sharp and sharp shape is provided, but the shape of the claw portion 36a is not limited to this. For example, the claw portion 36c as shown in FIGS. 5 and 6 may be provided. The claw portion 36c shown in FIGS. 5 and 6 has a wedge-shaped cutting edge formed in a straight line in a direction orthogonal to the ejection direction of the fastener (that is, the central axis X of the ejection port). The claw portions 36c may be provided in a single layer, but by providing them in a plurality of stages, the anti-slip effect is improved. For example, as shown in FIG. 6D, a wavy protrusion may be formed by providing a plurality of claw portions 36c in parallel in the radial direction D of the tubular portion 33. At this time, by making the inner claw portion 36c project toward the tip end from the outer claw portion 36c, it is possible to make it easier for the plurality of claw portions 36c to hit the driving surface to be slanted.

Further, the thin-walled portion 34a according to the above-described embodiment is formed so as to have a surface inclined with respect to the central axis X of the injection port 33b, but the thin-walled portion 34a does not necessarily have to be an inclined surface. For example, as shown in FIGS. 7 and 8, the surface of the thin wall portion 34a may be parallel to the central axis X of the injection port 33b. In this way, by making the angle of the surface of the thin-walled portion 34a parallel to the central axis X of the injection port 33b, the injection port 33b can be made closer to the driving surface.

(Second embodiment)
The driving tool 10 according to the present embodiment ejects a fastener from an injection port 33b formed at the tip of a nose portion 17.

Since the structure of the driving tool 10 is well known, it will not be described in detail, but for example, it is powered by compressed air, gas, electricity, etc., and has a configuration as shown in FIG. The driving tool 10 shown in FIG. 1 includes a grip 11 formed in a rod shape for the operator to grip. Further, a trigger 12 that can be pulled is arranged at a position where the index finger touches when the grip 11 is gripped by the operator. When the trigger 12 is pulled, an internal drive mechanism (piston cylinder mechanism, spring mechanism, etc.) is activated to drive the fastener.

An output unit 16 is connected to the upper end of the grip 11 so as to be substantially orthogonal to the grip 11. A nose portion 17 is formed so as to protrude from the tip of the output portion 16. The nose portion 17 is fixed to the tip of the output portion 16. A guide path for the fastener is formed inside the nose portion 17, and the outlet of the guide path for the fastener is an injection port 33b. A drive mechanism is built in the output unit 16, and a fastener is ejected from the nose unit 17 when the drive mechanism is operated. Specifically, inside the output unit 16, a driver for launching the fastener is guided in the direction of the nose unit 17 so as to be slidable. When the drive mechanism is activated, the driver shockably slides in the direction of the nose portion 17, and the tip of the driver launches a fastener waiting in the guide path of the nose portion 17.

A magazine 14 containing a connecting fastener is connected to the rear of the nose portion 17, and the fasteners in the magazine 14 are sequentially supplied into the guide path of the nose portion 17 by a fastener supply mechanism (not shown). It has become.

A contact nose 20 is provided at the tip of the nose portion 17 according to the present embodiment so as to be slidable. The contact nose 20 is connected to a contact arm provided so as to be reciprocally movable with respect to the output unit 16, and moves integrally with the contact arm. In the natural state, the contact nose 20 is urged so as to project toward the tip end, and in this state, the fastener cannot be driven. On the other hand, when the tip of the contact nose 20 is pressed against the material to be driven, the contact arm moves together with the contact nose 20, the safety mechanism is released, and the fastener can be driven.

The contact nose 20 does not necessarily have to be connected to the contact arm. For example, the contact nose 20 may be fixed so as not to move to the tip of the output unit 16 (nose unit 17). Further, the contact nose 20 may be integrally formed with the nose portion 17. Further, the contact nose 20 may be integrally formed at the tip of the contact arm.

As shown in FIGS. 9 and 10, the contact nose 20 according to the present embodiment is provided with a contact portion 30 at the tip. The contact portion 30 is a portion that comes into contact with the material to be driven when the fastener is driven. As shown in FIG. 10 (c), the contact portion 30 includes a tubular portion 33 that forms an injection path 33a that guides the fastener. The injection path 33a communicates with the inside of the nose portion 17 and forms a part of the guide path of the fastener described above. Further, an injection port 33b for injecting a fastener is opened at the end of the injection path 33a (the tip of the tubular portion 33).

As shown in FIG. 10D, the tubular portion 33 according to the present embodiment is a cylindrical portion protruding toward the tip of the contact portion 30. A tapered portion 34 is formed at the tip of the tubular portion 33. The tapered portion 34 is formed so that the outer diameter gradually decreases toward the tip end. By providing the tapered portion 34, the injection port 33b can be brought as close as possible to the driving surface 40 when hitting diagonally. Since the nail can be driven deeply by bringing the injection port 33b close to the driving surface, it is possible to reduce the lifting of the nail when the nail is driven diagonally.

Further, in the tubular portion 33, a plurality of claw portions 36a are arranged so as to surround the injection port 33b. These claw portions 36a are arranged on the outer peripheral side of the tip surface 35 of the tubular portion 33 forming the injection port 33b. Further, these claw portions 36a have a sharp and sharp shape in the same direction as the ejection direction of the fastener, and are used for hooking on the material to be driven when the fastener is slanted. In the present embodiment, the plurality of claw portions 36a are all formed to have the same size and the same shape, and are arranged at equal intervals in the circumferential direction.

The driving tool 10 according to the present embodiment is provided with a plurality of such small claw portions 36a so that the posture of the machine can be supported by three or more claw portions 36a during diagonal striking. Specifically, as shown in FIG. 11, when the tip of the contact portion 30 is brought into contact with the driving surface 40 so that the central axis X of the injection port 33b is 45 degrees with respect to the flat driving surface 40. , At least three claw portions 36a are configured to abut (pierce) the driving surface 40. Since at least three of the claw portions 36a are pierced into the driving surface 40, the four claw portions 36a are pierced into the driving surface 40 as shown in FIG. 12, depending on how the contact portion 30 is applied. In some cases.

In addition, in order for at least three claw portions 36a to come into contact with the driving surface 40 when striking diagonally, it is desirable to set the plurality of claw portions 36a so that the distance between the tips is 5 mm or less. It is more desirable to set the distance between the tips to be 3 mm or less.

According to such a configuration, the machine can be supported by three or more claw portions 36a at a general diagonal striking angle (around 45 degrees). That is, regardless of the position in the circumferential direction in which the contact portion 30 is brought into contact (even if the user is not aware of which claw portion 36a is hooked), three or more claw portions 36a are always placed on the driving surface 40. Since it comes into contact with the machine, the machine can be easily stabilized. Further, since it is not necessary to provide a large claw portion as in the conventional case and the machine can be stabilized by the small claw portion 36a, the tip portion does not become large and the visibility of the work portion at the tip of the nose portion 17 is improved. Can be done.

In the above-described embodiment, as shown in FIG. 10D, the tip surface 35 of the tubular portion 33 is formed flat. However, the present invention is not limited to this, and a non-slip shape may be provided at the tip of the tubular portion 33.

For example, as shown in FIGS. 13 and 14, an annular protrusion 35a may be formed at the tip of the tubular portion 33. In the example shown in FIGS. 13 and 14, the protrusion 35a is provided so as to be continuous with the tapered portion 34 (so as to share the tapered surface of the tapered portion 34). The protrusion 35a is formed so as to project toward the tip of the tubular portion 33 from the tip surface 35. The protrusion 35a is formed in the shape of a thin blade with a pointed tip, and is provided on a concentric circle with the injection port 33b. By providing such an annular protrusion 35a, the posture of the machine can be further stabilized at the time of diagonal striking. That is, since the annular protrusion 35a can suppress slipping in a direction different from that of the claw portion 36a at a position away from the claw portion 36a, the posture of the machine can be stabilized by the synergistic effect with the claw portion 36a. can.

Further, as shown in FIGS. 15 and 16, the tip surface 35 of the tubular portion 33 may be provided with irregularities at regular intervals in the circumferential direction. In the examples shown in FIGS. 15 and 16, the concave portion 35b is provided, but a convex portion may be provided instead of the concave portion 35b. Further, when the convex portion is provided, the tip of the convex portion may have a tapered claw shape. By providing such unevenness, the posture of the machine can be further stabilized at the time of diagonal striking. That is, since the unevenness can suppress slipping in a direction different from that of the claw portion 36a at a position away from the claw portion 36a, the posture of the machine can be stabilized by the synergistic effect with the claw portion 36a.

Further, in the above-described embodiment, the claw portion 36a having a sharp and sharp shape is provided, but the shape of the claw portion 36a may be different. For example, as shown in FIGS. 17 and 18, the claw portion 36a of the flat tooth may be provided. With such a configuration, it is possible to reduce the variation in shape during processing as compared with the case where the sharply shaped claw portion 36a is formed.

10 Driving tool 11 Grip 12 Trigger 14 Magazine 16 Output part 17 Nose part 20 Contact nose 21 Main body part 21a Ring holding groove 21b Cylindrical part 22 O-ring 30 Contact part 31 Insertion part 31a Engagement groove 32 Flange part 33 Cylindrical part 33a Injection Path 33b Ejection port 34 Tapered part 34a Thin-walled part 34b Non-thin-walled part 35 Tip surface 35a Protrusion 35b Recessed part 36 Protruding part 36a Claw part 36b Claw part 36c Claw part 40 Driving surface D Cylindrical part radial X Central axis of injection port

Claims (8)

It is a driving tool that ejects fasteners from the injection port formed at the tip of the nose.
A contact portion is provided at the tip of the nose portion.
The contact portion has a tubular portion that forms the ejection port, and has a tubular portion.
At the tip of the tubular portion, a thin-walled portion formed to be thinner than the other portions when viewed in the circumferential direction is provided.
Driving tool. The contact portion is rotatable with respect to the central axis of the ejection port.
The driving tool according to claim 1. A plurality of the thin-walled portions are provided in the circumferential direction of the tubular portion.
The driving tool according to any one of claims 1 or 2. A claw portion for hooking on the material to be driven is arranged on the outer peripheral side of the thin-walled portion when viewed in the radial direction of the tubular portion.
The driving tool according to any one of claims 1 to 3. It is a driving tool that ejects fasteners from the injection port formed at the tip of the nose.
A contact portion is provided at the tip of the nose portion.
The contact portion comprises a plurality of claw portions arranged so as to surround the ejection port.
When the tip of the contact portion is brought into contact with the driving surface so that the central axis of the injection port is 45 degrees with respect to the flat driving surface, at least three of the claw portions are in contact with the driving surface. Is configured to
Driving tool. The distance between the tips of the plurality of claws is set to 5 mm or less.
The driving tool according to claim 5. A cylindrical portion forming the ejection port is provided on the inner peripheral side of the plurality of claw portions.
An annular protrusion was formed at the tip of the tubular portion.
The driving tool according to any one of claims 5 or 6. A cylindrical portion forming the ejection port is provided on the inner peripheral side of the plurality of claw portions.
The tip surface of the tubular portion is provided with irregularities at regular intervals in the circumferential direction.
The driving tool according to any one of claims 5 or 6.

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