JP6024567B2 - tool - Google Patents

Description

  The present invention relates to a tool capable of externally fitting a connecting portion of a fastener supply device to a mounting portion of a tool main body and rotatably engaging the mounting portion of the tool main body and the connecting portion of the fastener supply device. The present invention relates to a tool capable of changing an angle of a fastener supply device with respect to a tool body.

  2. Description of the Related Art A driving tool, for example, a screw tightening machine for connecting screws, is known in which a fastener supply device is detachably provided at a mounting portion of a tool body. Various means for attaching and detaching the fastener supply device have been proposed. For example, Patent Literature 1 discloses that the lock is released by pressing the left and right buttons providing the lock function, and the fastener supply device is removed. A possible structure is disclosed. In addition to these, a structure in which the lock is released by turning a screw to remove the fastener supply device, and a structure in which the lock is released by operating a lever to remove the fastener supply device are known.

  Further, as such a driving tool, there is known a tool capable of changing the attachment angle of the fastener supply device with respect to the tool body. For example, a structure is known in which the lock can be released by operating a button or lever to remove the fastener supply device, and the fastener supply device can be attached at different angles. If the angle of the fastener supply device can be changed in this way, the angle of the fastener supply device can be changed according to the construction location, so that the mounting portion can be inserted while avoiding interference when cornering. be able to.

JP 2006-341369 A

  As described above, some conventional tools can change the attachment angle of the fastener supply device. However, in order to change the angle, a complicated operation such as removing the fastener supply device once is necessary, and there is a problem in operability.

  Then, this invention makes it a subject to provide the tool which can change the angle of a fastener supply apparatus by single action, and can improve work efficiency significantly.

  The present invention has been made to solve the above-described problems, and is characterized by the following.

(Claim 1)
The invention described in claim 1 is characterized by the following points.
That is, the tool according to claim 1 is a tool that can rotatably engage the connecting portion of the fastener supply device with the attachment portion of the tool body, and the attachment portion of the tool main body and the connection portion of the fastener supply device. One of these is provided with a plurality of fitted portions at intervals, and the other is provided with a fitted portion that fits into the fitted portion, and the fitted portion and the fitting The tool body and the fastener supply device are engaged with each other at a predetermined angle by fitting the mating portion with each other, and the fitting portion is fitted by rotating the tool body and the fastener supply device with each other. Is released, and the relative angle between the tool body and the fastener supply device can be changed.

(Claim 2)
The invention described in claim 2 has the following features in addition to the features of the invention described in claim 1 described above.
That is, the fitting portion is configured to be able to get over the fitted portion, and the fitting portion fitted to the fitted body is rotated by rotating the tool body and the fastener supply device with respect to each other. The relative angle can be changed by retracting from the fitting portion to release the fitting and fitting the retracted fitting portion to a different fitted portion.

(Claim 3)
The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1 or 2.
That is, when the tool body and the fastener supply device are rotated to a predetermined attachment / detachment position, the engagement between the mounting portion of the tool body and the connection portion of the fastener supply device is released, and the fastener supply device is It can be pulled out from the tool body.

(Claim 4)
The invention according to claim 4 is characterized by the following points in addition to the features of the invention according to any one of claims 1 to 3.
That is, the fitting portion is a member in which a spherical or mountain-shaped protrusion is urged in the protruding direction by the urging member, or a urging member having a protruding shape urges itself in the protruding direction. The fitted portion is a recess or a hole into which the sphere or protrusion is fitted.

  The invention according to claim 1 is as described above, and the tool body and the fastener supply device are engaged with each other at a predetermined angle by fitting the fitted portion and the fitting portion to each other, The fitting of the fitting portion is released by rotating the fastener supply device with each other, and the relative angle between the tool body and the fastener supply device can be changed. In other words, the relative angle between the tool body and the fastener supply device can be changed with a single action without operating the buttons and levers or once removing the fastener supply device, greatly increasing work efficiency. Can be improved.

  The invention according to claim 2 is as described above, wherein the fitting portion is configured to be able to get over the fitting portion, and the tool body and the fastener supply device rotate with respect to each other. As a result, the fitting portion that is fitted is retracted from the fitted portion and the fitting is released, and the retracted fitting portion is fitted to a different fitted portion, so that the relative angle is reduced. Since the change is possible, the effects as described above can be obtained without using a complicated mechanism.

  The invention according to claim 3 is as described above, and when the tool body and the fastener supply device are rotated to a predetermined attachment / detachment position, the attachment portion of the tool body and the fastener supply device are connected. The engagement with the part is released, and the fastener supply device can be pulled out from the tool body. That is, the fastener supply device can be attached / detached with the same action as changing the relative angle between the tool body and the fastener supply device, and the operation of the button or lever is not required during the attachment / detachment operation, so workability is good. .

  The invention according to claim 4 is as described above, and the fitting portion includes a spherical body or a mountain-shaped protrusion that is urged in a protruding direction by an urging member, or an attachment having a protrusion shape. The urging member urges itself in the protruding direction, and the fitted portion is a recess or a hole into which the sphere or protrusion is fitted. According to such a configuration, when the user adjusts the angle, the completion of the alignment can be sensed with a click feeling when the sphere is fitted, so that the user-friendliness can be improved.

It is an external appearance perspective view of the screw tightening machine for a connection screw. It is an external appearance perspective view of the screw tightening machine for a connection screw which removed the fastener supply apparatus from the tool main body. It is an external appearance perspective view of the screwing machine for a connection screw which rotated the fastener supply apparatus. FIG. 4 is a partially enlarged perspective view of the vicinity of the mounting portion of the tool body. It is a perspective view which shows the connection part of a fastener supply apparatus. It is a figure which shows a mode that a to-be-fitted part and a fitting part fit.

  An embodiment of the present invention will be described with reference to the drawings, taking as an example a connecting screw screw tightening machine 10 for driving a connecting screw 50 as a driving tool for driving a connecting fastener.

  The screw tightening machine 10 for a connection screw according to the present embodiment uses a connection screw 50 in which a plurality of screws 51 are connected by a connection band 52. As shown in FIGS. The supply device 20 is mounted. A mounting portion 12 is provided at the tip of the tool main body 11, and a connection portion 21 a provided at the rear end of the fastener supply device 20 can be externally fitted to the mounting portion 12. The fastener supply device 20 is detachable.

  As shown in FIG. 2, the tool body 11 includes a bit mounting portion 15 at a tip portion covered by the fastener supply device 20, and a driver bit 16 is mounted on the bit mounting portion 15. When the trigger 13 of the tool body 11 is pulled, a motor (not shown) rotates using the battery 14 as a power source. When a later-described nose portion 30 is pressed against the material to be driven while the motor is rotated, the nose portion 30 is pushed in, the driver bit 16 strikes the screw 51 held in the nose portion 30, and the driver bit 16 is pushed in. Since the rotation of the motor is transmitted to the pushed driver bit 16, the driver bit 16 rotates and the screw 51 is tightened to be driven into the driven material.

  The fastener supply device 20 includes a screw feeding mechanism that sequentially feeds the connecting screws 50 to the driving position. As shown in FIG. 1 and the like, the base portion 21 fixed to the tip of the tool body 11 and the base portion 21 are provided. And a nose portion 30 slidably provided at the tip of the base, and a spring (not shown) for urging the nose portion 30 in the protruding direction with respect to the base portion 21 is provided inside.

  The base part 21 is a part attached to the tip of the tool body 11. As shown in FIG. 3, the base portion 21 includes a rectangular tubular base casing 22 and a magazine 23 that is fixed to the lower portion of the base casing 22 and guides the connecting screw 50.

  On the other hand, the nose portion 30 includes a base portion 31 that can slide along the inside of the base casing 22, and a tip arm 32 that is formed to protrude in the tip direction of the base portion 31.

  As shown in FIG. 1, a holding groove 31 a that communicates vertically is formed at the tip of the base 31. The holding groove 31a is for passing the connection band 52 of the connection screw 50, and the connection band 52 of the connection screw 50 sent when the connection screw 50 is sent is introduced from the lower opening of the holding groove 31a. It is formed so as to escape from the upper opening. In addition, slits 31b are formed in front and rear of the holding groove 31a, and the driver bit 16 enters the holding groove 31a from the rear slit 31b and pushes out the screw 51 held in the holding groove 31a and is pushed out. The screw 51 is driven out from the front slit 31b.

  The distal arm 32 is a substantially L-shaped member in plan view fixed to the distal end of the base 31, and includes a contact portion 32a at the distal end. The contact portion 32a is a portion that comes into contact with the driven material when the nose portion 30 is pressed against the driven material. The contact portion 32a is formed with an injection port 32b through which the screw 51 is driven and guided.

  When the screw 51 is driven by the connecting screw tightening machine 10 according to the present embodiment, the nose portion 30 (contact portion 32a) is pressed against the driven material while the trigger 13 is pulled. By this operation, the nose portion 30 is pushed into the base portion 21, and in conjunction with this operation, a feeding operation of the connecting screw 50 and a driving operation of the connecting screw 50 are executed.

  By the way, the mounting portion 12 of the tool body 11 and the connecting portion 21a of the fastener supply device 20 are rotatably engaged, and as shown in FIG. It is formed to be executable. For this reason, for example, by rotating and using the fastener supply device 20 at the time of cornering or the like, it is possible to perform construction without interference of the hand or the like with the wall.

  The mounting portion 12 of the tool body 11 has a cylindrical shape as shown in FIG. 4, and is formed with a flange portion 17 projecting in the outer peripheral direction at the tip edge. An engagement groove 18 is formed in a ring shape along the root of the flange portion 17. The flange portion 17 includes a notch portion 17a at the upper and lower portions. The notch 17a is smoothly continuous with the engagement groove 18 so that an engagement projection 36, which will be described later, can enter and exit the engagement groove 18 through the notch 17a. A metal band 19 having a plurality of holes 19 a is wound around the base of the mounting portion 12. The hole 19a of the metal band 19 constitutes a fitted portion for fitting a steel ball 37 described later.

  As shown in FIG. 5, the connecting portion 21 a of the fastener supply device 20 is a recessed portion in which a bit through hole 33 for allowing the driver bit 16 to pass therethrough is formed at the center. A cylindrical portion 34 is formed to project from the connection portion 21 a so as to be continuous with the opening edge of the bit through hole 33, and a circular groove 35 is formed around the cylindrical portion 34.

  Engagement protrusions 36 project from the left and right sides of the circular groove 35. The engaging protrusion 36 engages with the flange portion 17 described above, and is formed so as to sandwich and hold the flange portion 17 between the back surface of the engaging protrusion 36 and the abutting surface of the circular groove 35. For this reason, an interval in which the flange portion 17 can enter is provided between the back surface of the engagement projection 36 and the abutting surface of the circular groove 35. Specifically, the thickness of the flange portion 17 is substantially the same. A (or slightly larger) gap is provided between the back surface of the engaging protrusion 36 and the abutting surface of the circular groove 35.

  The flange portion 17 is provided with the above-described cutout portion 17a, and the engagement protrusion 36 passes through the cutout portion 17a, so that the gap between the back surface of the engagement protrusion 36 and the abutting surface of the circular groove 35 is provided. The flange portion 17 can be inserted. For this reason, the engagement protrusion 36 is formed so as to be able to pass through the notch portion 17a. Specifically, the lateral width of the engagement protrusion 36 is substantially the same as (or slightly smaller than) the lateral width of the notch portion 17a of the flange portion 17. Is formed.

  In addition, steel balls 37 are embedded in the circular groove 35 on the left and right sides slightly closer to the opening than the above-described engagement protrusion 36. As shown in FIG. 6, the steel ball 37 is urged in a protruding direction by a plate spring 38 that is an urging member, and is provided so as to slightly protrude from the surface of the circular groove 35. The steel ball 37 constitutes a fitting portion that fits into the hole 19a of the metal band 19 described above.

  When the fastener supply device 20 is mounted on the tool body 11, the fastener supply device 20 is mounted at a predetermined attachment / detachment position (see FIG. 6C) such that the fastener supply device 20 is perpendicular to the tool body 11. The mounting part 12 of the tool body 11 is inserted into the connection part 21a. By inserting in such a position, the position of the notch 17a of the flange part 17 of the mounting part 12 and the position of the engaging protrusion 36 of the connecting part 21a coincide with each other, so that the engaging protrusion 36 passes through the notch 17a. The flange portion 17 is inserted to the back of the circular groove 35. When the tool main body 11 and the fastener supply device 20 are rotated relative to each other in this state, the flange portion 17 enters the back of the engagement protrusion 36, and the both engage with each other so that they cannot be pulled out.

  Here, as described above, the metal band 19 is wound around the outer periphery of the mounting portion 12, and the metal band 19 is provided with a plurality of holes 19a at intervals. As shown in FIG. 6, the hole 19a has two holes 19a provided in correspondence with the arrangement interval of the steel balls 37 (in this embodiment, two holes 19a provided at opposite positions across the rotation axis). A plurality of sets are provided with one hole 19a) (7 sets in this embodiment).

  When the tool body 11 and the fastener supply device 20 are rotated relative to each other, the steel ball 37 is retracted inward against the urging force of the leaf spring 38, gets over the hole 19a, and fits into the next hole 19a. Thus, the steel ball 37 and the hole 19a are sequentially fitted, so that the tool body 11 and the fastener supply device 20 can be rotated relative to each other at an angle corresponding to the pitch of the hole 19a and positioned at this angle. Yes. Thus, when it is desired to change the relative angle between the tool body 11 and the fastener supply device 20, the tool body 11 and the fastener supply device 20 are rotated relative to each other so that the fitting position between the steel ball 37 and the hole 19a is changed. Just change it.

  In the present embodiment, since seven sets of holes 19a are provided, the relative angle between the tool body 11 and the fastener supply device 20 can be changed in seven stages. The angle setting is not limited to seven steps, and may be six steps or less, or may be eight steps or more.

  In addition, when removing the fastener supply apparatus 20 from the tool main body 11, what is necessary is just to rotate the tool main body 11 and the fastener supply apparatus 20 to a predetermined attachment or detachment position contrary to the above. Thereby, since the position of the notch 17a of the flange part 17 and the position of the engagement protrusion 36 correspond, the engagement with the mounting part 12 of the tool main body 11 and the connection part 21a of the fastener supply apparatus 20 is cancelled | released, and a fastener The supply device 20 can be pulled out from the tool body 11.

  As described above, according to the present embodiment, the mounting portion 12 of the tool main body 11 is provided with a plurality of holes 19a at intervals, and the connecting portion 21a of the fastener supply device 20 is provided with respect to the hole 19a. A steel ball 37 that is fitted so as to be able to get over is provided. When the tool body 11 and the fastener supply device 20 are rotated with each other, the hole 19a and the steel ball 37 are fitted to each other so that the tool body 11 and the fastener are fitted. The tool body 11 and the fastener supply device 20 can be positioned by changing the fitting position of the hole 19a and the steel ball 37 by rotating the tool body 11 and the fastener supply device 20 with each other. The relative angle of can be changed. In other words, since the relative angle between the tool body 11 and the fastener supply device 20 can be changed without operating a button or lever or removing the fastener supply device 20 once, the work efficiency is greatly increased. Can be improved.

  Further, when the tool body 11 and the fastener supply device 20 are rotated to a predetermined attachment / detachment position, the engagement between the mounting portion 12 of the tool body 11 and the connection portion 21a of the fastener supply device 20 is released, and the fastener supply device 20 can be pulled out from the tool body 11. That is, the fastener supply device 20 can be attached / detached with the same action as changing the relative angle between the tool body 11 and the fastener supply device 20, and no operation of buttons or levers is required during the attachment / detachment operation. Good sex.

  Further, since the steel ball 37 is biased in the protruding direction by the leaf spring 38 and the steel ball 37 is fitted into the hole 19a, the click feeling when the steel ball 37 is fitted when the user adjusts the angle. Since the user can feel the completion of the alignment, the user-friendliness can be improved.

  In the above-described embodiment, the fitted portion (hole 19a) is provided on the tool main body 11 side, and the fitting portion (steel ball 37) is provided on the fastener supply device 20 side. A fitting portion may be provided on the tool body 11 side, and a fitting portion may be provided on the fastener supply device 20 side.

  In the above-described embodiment, the plate spring 38 is used as the biasing member. However, the present invention is not limited to this, and an O-ring or the like may be used as the biasing member.

  In the above-described embodiment, the fitted portion is the hole 19a formed in the metal band 19, but a concave portion may be used instead of the hole 19a. Further, instead of using the metal band 19, another material may be used, or a hole or a recess may be directly formed in the mounting portion 12.

  In the above-described embodiment, the fitted portion (hole 19a) is provided on the outer periphery of the mounting portion 12. However, the fitting portion 12 is fitted on the inner periphery of the mounting portion 12 or the outer surface of the bit mounting portion 15 of the flange 17. A joint portion may be provided, and a fitting portion may be provided on the fastener supply device 20 side accordingly.

DESCRIPTION OF SYMBOLS 10 Connection screw tightening machine 11 Tool main body 12 Mounting part 13 Trigger 14 Battery 15 Bit mounting part 16 Driver bit 17 Flange part 17a Notch part 18 Engaging groove 19 Metal belt 19a Hole (to-be-fitted part)
DESCRIPTION OF SYMBOLS 20 Fastener supply apparatus 21 Base part 21a Connection part 22 Base casing 23 Magazine 30 Nose part 31 Base part 31a Holding groove 31b Slit 32 Tip arm 32a Contact part 32b Injection port 33 Bit through-hole 34 Cylindrical part 35 Circular groove 36 Engagement protrusion 37 Steel Ball (fitting part)
38 Leaf spring (biasing member)
50 connecting screw 51 screw 52 connecting band

Claims (4)

A tool that can rotatably engage the connecting portion of the fastener supply device to the mounting portion of the tool body,
One of the tool body mounting portion and the fastener supply device connection portion is provided with a plurality of fitted portions at intervals, and the other is fitted with the fitted portion. A mating portion is provided, and the tool body and the fastener supply device are engaged at a predetermined angle by fitting the fitted portion and the fitting portion to each other;
The tool body and the fastener supply device are rotated relative to each other so that the fitting portion is disengaged and the relative angle between the tool body and the fastener supply device can be changed. . The fitting part is configured to be able to get over the fitted part,
By rotating the tool main body and the fastener supply device with each other, the fitted portion that is fitted is retracted from the fitted portion, the fitting is released, and the fitted portions that are retracted are different. The tool according to claim 1, wherein the relative angle can be changed by fitting the joint portion.   When the tool main body and the fastener supply device are rotated to a predetermined attaching / detaching position, the engagement between the mounting portion of the tool main body and the connection portion of the fastener supply device is released, and the fastener supply device is moved to the tool. The tool according to claim 1, wherein the tool can be pulled out from the main body.   The fitting portion is one in which a spherical or mountain-shaped protrusion is urged in the protruding direction by the urging member, or a urging member having a protruding shape urges itself in the protruding direction, The tool according to any one of claims 1 to 3, wherein the fitted portion is a concave portion or a hole into which the spherical body or the protrusion is fitted.

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