Power tool attachments and power tools

Abstract

To provide an attachment for power tools that allows for stable operation of power tools. [Solution] An attachment for an electric tool used in an electric tool that processes a workpiece by oscillating the tip tool around a drive axis comprises a mounting member, a restricting member, and a connecting member. The mounting member is detachably attached to the electric tool. The restricting member contacts an object and restricts the relative movement of the electric tool with respect to the object. The connecting member connects the restricting member and the mounting member. The restricting member includes (i) a shaft portion and (ii) a stopper portion connected to the tip of the shaft portion and having a restricting surface perpendicular to the long axis of the shaft portion. The connecting member is configured to connect the restricting member and the mounting member such that the electric tool attachment is in a first state in which the long axis of the shaft portion is parallel to the drive axis of the tip tool when the mounting member is attached to the electric tool.

Description

Technical Field

[0001] The present disclosure relates to an attachment for a power tool and a power tool.

Background Art

[0002] In a power tool that processes a workpiece by oscillating and driving a tip tool around a drive axis, an attachment for a power tool that regulates the distance from an object such as the workpiece to the tip tool may be used. For example, Patent Document 1 discloses an attachment for a power tool including a fixing portion for attaching the attachment to the power tool and a stopper portion that contacts an object and regulates relative movement of the power tool with respect to the object.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional technique, the contact area at the tip of the stopper portion has a cylindrical shape. Therefore, when the stopper portion contacts an object, the stopper portion may roll with respect to the object, and the power tool may rotate about the stopper portion. Accordingly, the operation of the power tool may become unstable.

[0005] One non-limiting object of the present disclosure is to provide an attachment for a power tool that can stably operate the power tool.

Means for Solving the Problems

[0006] According to one non-limiting aspect of the present disclosure, an attachment for a power tool is provided for use in a power tool that processes a workpiece by oscillating a tip tool around a drive axis. The power tool attachment comprises a mounting member, a regulating member, and a connecting member. The mounting member is detachably mounted on the power tool. The regulating member contacts an object to restrict the relative movement of the power tool with respect to the object. The connecting member connects the regulating member and the mounting member. The regulating member includes (i) a shaft portion and (ii) a stopper portion connected to the tip of the shaft portion and having a regulating surface perpendicular to the long axis of the shaft portion. The connecting member is configured to connect the regulating member and the mounting member such that the power tool attachment is in a first state in which, when the mounting member is mounted on the power tool, the long axis of the shaft portion is parallel to the drive axis of the tip tool.

[0007] According to the power tool attachment of this embodiment, the user can stably operate the vibrating tool while restricting the relative position of the vibrating tool with respect to an object to the position of the restricting surface in a direction parallel to the drive axis.

[0008] According to another non-limiting aspect of the present disclosure, a power tool is provided for machining a workpiece by oscillating a tip tool around a drive axis. The power tool comprises a motor, a spindle, and the power tool attachment described in the above aspect. The spindle is configured to oscillate the tip tool around the drive axis by power from the motor.

[0009] According to the power tool of this embodiment, the user can stably operate the vibrating tool while restricting the relative position of the vibrating tool with respect to an object to the position of the regulating surface in a direction parallel to the drive axis. [Brief explanation of the drawing]

[0010] [Figure 1] This is an explanatory diagram showing the external configuration of a vibrating tool according to the first embodiment. [Figure 2]It is a cross-sectional view showing the internal structure of a vibrating tool. [Figure 3] It is a cross-sectional view showing the position III-III in FIG. 2. [Figure 4] It is an explanatory view showing the external appearance structure of the attachment according to the first embodiment. [Figure 5] It is a perspective view showing the external appearance structure of a regulating member. [Figure 6] It is a perspective view showing the external appearance structure of a mounting member. [Figure 7] It is a plan view showing the structure of the mounting member. [Figure 8] It is a front view showing the structure of the mounting member. [Figure 9] It is a cross-sectional view showing the position IX-IX in FIG. 8. [Figure 10] It is an explanatory view showing the structure of the cylindrical portion of the vibrating tool. [Figure 11] It is an explanatory view showing the structure of the cylindrical portion with the mounting member attached. [Figure 12] It is a cross-sectional view showing the position XII-XII in FIG. 2. [Figure 13] It is an explanatory view showing the structure of the extending portion of the mounting member. [Figure 14] It is a cross-sectional view showing the position XIV-XIV in FIG. 8. [Figure 15] It is a plan view showing the external appearance structure of a connecting member. [Figure 16] It is an explanatory view showing the structure of the shaft insertion portion of the connecting member. [Figure 17] It is a cross-sectional view showing the position XVII-XVII in FIG. 16. [Figure 18] It is an explanatory view showing the shaft insertion portion with the shaft portion of the regulating member inserted. [Figure 19] It is an explanatory view showing the band mounting portion with the extending portion accommodated. [Figure 20] It is an explanatory view showing the position XX-XX in FIG. 19. [Figure 21] It is an explanatory view showing the position XXI-XXI in FIG. 20. [Figure 22] It is an explanatory view showing a vibrating tool with the attachment in the first state attached. [Figure 23] It is an explanatory diagram showing the external configuration of the attachment in the second state. [Figure 24] It is an explanatory diagram showing a vibrating tool with the attachment in the second state attached. [Figure 25] It is an explanatory diagram showing the external configuration of the vibrating tool according to the second embodiment. [Figure 26] It is a cross-sectional view showing the internal configuration of the vibrating tool according to the second embodiment. [Figure 27] It is an explanatory diagram showing the configuration of the attachment according to the second embodiment. [Figure 28] It is a plan view showing the upper configuration of the attachment according to the second embodiment. [Figure 29] It is an exploded perspective view showing the configuration of the mounting member. [Figure 30] It is a perspective view showing the configuration of the mounting member. [Figure 31] It is a cross-sectional view at the XXXI - XXXI position shown in FIG. 28. [Figure 32] It is a perspective view showing the configuration of the rectangular portion formed at the front end of the housing. [Figure 33] It is a plan view showing the lower configuration of the mounting portion. [Figure 34] It is an explanatory diagram showing a method of mounting the mounting member on the rectangular portion. [Figure 35] It is a perspective view showing the configuration of the extending portion. [Figure 36] It is a cross-sectional view at the XXXVI - XXXVI position shown in FIG. 28. [Figure 37] It is a perspective view showing a vibrating tool with the mounting member mounted immediately before the drive axis. [Figure 38] It is a perspective view at the XXXVIII - XXXVIII position shown in FIG. 35. [Figure 39] It is a perspective view showing a vibrating tool with the regulating member mounted immediately before the drive axis.

Embodiments for Carrying Out the Invention

[0011] Representative and non-limiting examples of the present invention will be described in detail below with reference to the drawings. This detailed description is intended simply to show those skilled in the art details for carrying out preferred examples of the present invention and is not intended to limit the scope of the invention. In addition, the additional features and inventions disclosed below may be used separately from or in conjunction with the other features and inventions to provide further improved apparatus, methods for manufacturing and using the same.

[0012] Furthermore, the combinations of features and processes disclosed in the following detailed description are not essential for carrying out the present invention in the broadest sense, and are described solely to illustrate representative examples of the present invention. Moreover, the various features of the representative examples described above and below, as well as the various features described in the independent and dependent claims, do not necessarily have to be combined in the same way as the examples described herein or in the order listed, in order to provide additional and useful embodiments of the present invention.

[0013] All features described herein and / or in the claims are intended to be disclosed individually and independently of each other, as limitations to the original disclosure and claimed specifics, separate from the configurations of features described in the embodiments and / or in the claims. Furthermore, all descriptions relating to numerical ranges and groups or clusters are intended to disclose intermediate configurations therein, as limitations to the original disclosure and claimed specifics.

[0014] In one non-limiting embodiment of the present disclosure, the connecting member may include (i) an insertion portion through which the shaft portion can be inserted, and (ii) a fixing portion that abuts against the shaft portion inserted through the insertion portion and fixes the shaft portion. The fixing portion may be configured to abut against multiple positions on the shaft portion in the extending direction of the shaft portion. The connecting member may be configured to adjust the distance from the connecting member to the stopper portion in the extending direction of the shaft portion by switching the position in which the fixing portion abuts against the shaft portion. According to this embodiment, the user can adjust the position of the restricting surface relative to the connecting member to any position along the long axis of the shaft.

[0015] In addition to or in lieu of the above embodiments, the shaft portion may have a plurality of first locking portions formed at a plurality of positions in the extending direction of the shaft portion. The fixing portion may have a second locking portion that can be locked to each of the plurality of first locking portions. The connecting member may be configured so that the distance from the connecting member to the stopper portion in the extending direction of the shaft portion can be adjusted by locking the second locking portion with the plurality of first locking portions. According to this embodiment, the user can fix the position of the restricting surface relative to the connecting member by a simple method of locking the second locking portion with the plurality of first locking portions.

[0016] In addition to or in lieu of the above embodiments, the insertion portion may be configured to allow insertion of the shaft portion while it is rotated at multiple rotational angles around the long axis of the shaft portion. According to this embodiment, the user can switch the orientation of the stopper portion connected to the shaft portion to multiple rotation angles around the long axis of the shaft portion relative to the connecting member.

[0017] In addition to or in lieu of the above embodiments, the mounting member may include a clamp portion and a third locking portion. The clamp portion is configured to be mountable on the power tool so as to surround the drive axis. The third locking portion extends from the clamp portion. The connecting member may include a fourth locking portion. The fourth locking portion is configured to be able to lock with the third locking portion when it has been rotated to a plurality of rotation angles about the long axis of the third locking portion. The connecting member may be configured to be able to connect the regulating member, rotated to the plurality of rotation angles about the long axis of the third locking portion, to the mounting member by locking the third locking portion and the fourth locking portion. According to this embodiment, the user can adjust the extension direction of the shaft portion relative to the drive axis to a plurality of rotation angles around the long axis of the third locking portion.

[0018] In addition to or in lieu of the above embodiments, the connecting member may be configured to switch the power tool attachment between (i) the first state and (ii) the second state in which, when the mounting member is attached to the power tool, the long axis of the shaft portion is perpendicular to the drive axis of the tip tool and the extending direction of the third locking portion. According to this embodiment, the user can switch the position of the regulating surface of the stopper to any position including below the tip tool and in front of the drive axis.

[0019] In addition to or in lieu of the above embodiments, the third locking portion may include (i) a base portion extending from the clamp portion, (ii) an angle defining portion connected to the tip of the base portion, and (iii) a locking recess formed in the base portion. The fourth locking portion may include (i) a housing portion capable of accommodating the angle defining portion rotated to a plurality of rotation angles about the long axis of the base portion, and (ii) a locking projection that locks into the locking recess and fixes the angle defining portion housed in the housing portion. According to this embodiment, a simple connecting structure allows the extension direction of the shaft portion relative to the drive axis to be adjusted to multiple rotation angles around the long axis of the third locking portion.

[0020] In addition to or in lieu of the above embodiments, the mounting member may include a clamp portion that is attached to the power tool so as to surround the drive axis. The clamp portion may be configured to allow the mounting member, rotated to one of the plurality of rotation angles around the drive axis, to be attached to the power tool. According to this embodiment, the user can adjust the arrangement of the connecting members to multiple rotation angles around the drive axis.

[0021] In addition to or in lieu of the above embodiments, the clamp portion may have a plurality of sixth locking portions that can be locked to a fifth locking portion formed on the power tool. The plurality of sixth locking portions may be formed at a plurality of positions corresponding to the plurality of rotation angles around the drive axis. The clamp portion may be configured to allow the mounting member, rotated to the plurality of rotation angles around the drive axis, to be mounted on the power tool by locking the fifth locking portion to any of the plurality of sixth locking portions formed at the plurality of positions. According to this embodiment, the user can fix the arrangement of the connecting member to multiple rotation angles around the drive axis by a simple method of locking the fifth locking part with a plurality of sixth locking parts.

[0022] In addition to or in lieu of the above embodiments, the clamp portion may include a first main body portion and a second main body portion arranged opposite to each other and capable of clamping the power tool so as to surround the drive axis. The mounting member may include a distance adjustment portion that can adjust the distance between the first main body portion and the second main body portion. According to this embodiment, the user can attach and detach or rotate the mounting member to the cylindrical portion without using any special tools.

[0023] In addition to or in lieu of the above embodiments, the fifth locking portion may be a protrusion that protrudes from the outer surface of the power tool by a predetermined distance. The mounting member may be configured to allow the separation distance to be adjusted to be greater than or equal to the distance by which the protrusion protrudes from the outer surface of the power tool. According to this embodiment, the user can attach, detach, or rotate the mounting member to the cylindrical part by a simple method of adjusting the distance between the first main body and the second main body at the distance adjustment unit to a distance greater than or equal to the distance the protrusion extends. Furthermore, by adjusting the distance between the two bodies to be approximately the same as the distance the protrusion extends, the user can rotate the clamp unit around the drive axis while suppressing or preventing the mounting member from falling off the cylindrical part.

[0024] A. First Embodiment: A1. Outline configuration of the vibrating tool 100: The following describes the general configuration of the vibrating tool 100 according to the first embodiment with reference to the drawings. As shown in Figure 1, the vibrating tool 100 is an example of an electric power tool that performs machining operations on a workpiece (not shown) by oscillating a tip tool 91. The tip tool 91 is, for example, a blade, scraper, grinding pad, polishing pad, etc. The user can select one of these tip tools 91 that is suitable for the desired machining operation, such as cutting, peeling, grinding, or polishing, and attach it to the vibrating tool 100 to perform the machining operation. In this embodiment, an example in which a blade is attached to the vibrating tool 100 as an example of a tip tool 91 will be used for the explanation.

[0025] As shown in Figure 1, an attachment 200 is detachably mounted on the vibrating tool 100. The attachment 200 contacts an object such as a workpiece to restrict the relative movement of the vibrating tool 100 with respect to the object. Note that the object includes not only the workpiece but also other objects such as a wall near the workpiece.

[0026] A2. Housing 2 configuration: As shown in Figures 1 and 2, the vibrating tool 100 is equipped with a long housing 2. The housing 2 forms the outer casing of the vibrating tool 100.

[0027] As shown in Figure 2, the housing 2 houses a spindle 51 and a motor 53, among other things. The motor 53 is positioned so that the rotation axis MX of the output shaft 531 is parallel to the extending direction of the housing 2. The spindle 51 is positioned so that its drive axis TX is perpendicular to the extending direction of the housing 2. One end of the spindle 51 in the direction of the drive axis TX protrudes from the housing 2 and is exposed to the outside. The tip tool 91 can be attached to and detached from this part. A battery 93 capable of supplying power to the motor 53 is detachably mounted at the other end of the housing 2 in the extending direction. The vibrating tool 100 is configured to oscillate the tip tool 91 in a rocking plane perpendicular to the drive axis TX by reciprocating the spindle 51 around the drive axis TX within a predetermined angular range using the power of the motor 53.

[0028] For convenience, in the following explanation, with respect to the direction of the vibrating tool 100, the direction in which the drive axis TX of the spindle 51 extends is defined as the vertical direction, and one end of the spindle 51 to which the tip tool 91 is attached is defined as the lower side, and the opposite end as the upper side. In addition, the direction corresponding to the rotation axis MX of the output shaft 531 is defined as the front-rear direction, and one end of the housing 2 to which the spindle 51 is housed is defined as the front side, and the other end to which the battery 93 is attached is defined as the rear side. The direction perpendicular to the vertical and front-rear directions is defined as the left-right direction. When the illustrated blade is attached as the tip tool 91, the oscillation direction of the tip tool 91 generally corresponds to the left-right direction.

[0029] As shown in Figure 1, in this embodiment, the housing 2 includes a front end portion 21, a rear end portion 23, and a central portion 25 that connects the front end portion 21 and the rear end portion 23.

[0030] As shown in Figure 2, the front end portion 21 has a substantially cylindrical shape that extends in the vertical direction. The front end portion 21 houses the metal housing 38. The front end portion 21 is provided with an operating lever 61 for operating the locking mechanism 6. A cylindrical portion 212 is formed at the lower front end of the front end portion 21, extending along the drive axis TX. The cylindrical portion 212 houses the lower end of the spindle 51. A locking projection 215, which will be described later, is formed on the cylindrical portion 212.

[0031] The metal housing 38 has a substantially L-shape, including a first portion 381 extending in the vertical direction and a second portion 382 extending in the front-rear direction. The first portion 381 houses the spindle 51. The second portion 382 houses the transmission mechanism 55, which will be described later. The second portion 382 also houses the front end of the output shaft 531 of the motor 53 and functions as part of the motor housing 254.

[0032] The locking mechanism 6 is configured to lock the clamp shaft 52 in a clamped position between it and the spindle 51, enabling the clamp to hold the tip tool 91. The clamp shaft 52 is a substantially cylindrical member that is elongated in the vertical direction. The clamp shaft 52 is inserted coaxially into the spindle 51. A clamp head 521 is formed at the lower end of the clamp shaft 52.

[0033] When the operating lever 61 is in the locked position, the tip tool 91 is clamped between the tool mounting section 511 and the clamp head 521 and fixed to the spindle 51. When the operating lever 61 is in the unlocked position, the clamp shaft 52 is unlocked. The user can then pull the clamp shaft 52 away from the spindle 51 and attach or detach the tip tool 91.

[0034] The central portion 25 is formed between the front end portion 21 and the rear end portion 23. The central portion 25 has a motor housing 254 and a gripping portion 252 connected to the rear end of the motor housing 254.

[0035] The gripping portion 252 is configured to be gripped by the user. The gripping portion 252 is formed in a cylindrical shape with a generally uniform diameter and extends linearly in the front-rear direction. The gripping portion 252 is formed to be thinner than the front end 21 and rear end 23 so that it is easy for the user to grip. The gripping portion 252 houses lead wires that electrically connect the motor 53 and the controller 4, as well as switches 29, etc.

[0036] The motor housing 254 houses the motor 53. In this embodiment, the motor 53 is housed in the motor housing 254 such that the rotation axis MX of the output shaft 531 of the motor 53 is perpendicular to the drive axis TX of the spindle 51. Therefore, the front end portion 21 of the housing 2 is smaller compared to the case where the motor 53 is housed so that the rotation axis MX is parallel to the drive axis TX. A switch knob 290, which can be manually operated by the user, is provided on the upper surface of the motor housing 254.

[0037] The switch knob 290 is configured to slide in the front-to-back direction by manual operation. A switch lever 291 extending in the front-to-back direction is connected to the switch knob 290. The switch lever 291 moves between the ON position and the OFF position in response to the operation of the switch knob 290, switching the switch 29 on and off. The switch 29 is a so-called microswitch. When the switch 29 is turned ON, the motor 53 is started to drive.

[0038] The rear end portion 23 is formed in a cylindrical shape that widens towards the rear. In other words, the rear end portion 23 is formed such that the outer shape of the cross-section perpendicular to the rotation axis MX increases towards the rear. The rear end portion 23 has a battery mounting portion 331 into which the battery 93 can be slidably engaged.

[0039] The battery mounting section 331 is provided with receiving terminals that can be electrically connected to the power supply terminals of the battery 93. The upper part of the dial 87 is held at the upper end of the rear end 23 with the upper part exposed to the outside. The dial 87 is configured as an operating device that accepts rotational operation by the user and sets the rotation speed of the motor 53 steplessly.

[0040] The rear end 23 houses the controller 4. The controller 4 includes a circuit board equipped with a CPU as a processor that controls the drive of the motor 53, memory devices such as RAM and ROM, and switching elements that operate based on control signals from the CPU. The controller 4 starts driving the motor 53 when the switch 29 is turned on. The controller 4 can further set the rotational speed of the motor 53 based on a resistance value set via the dial 87.

[0041] A3. Configuration of drive mechanism 5: As shown in Figure 2, a drive mechanism 5 is provided in the front end portion 21 and the motor housing 254 in the central portion 25 of the housing 2. The drive mechanism 5 is a mechanism that drives the tip tool 91 to oscillate. The drive mechanism 5 includes a spindle 51, a motor 53, and a transmission mechanism 55.

[0042] The spindle 51 is a long, substantially cylindrical member. In this embodiment, the spindle 51 is housed in a metal housing 38 and is rotatably supported around the drive axis TX by two bearings. The spindle 51 has a tool mounting portion 511 at its lower end, which is exposed to the outside from the housing 2, to which a tip tool 91 can be attached and detached. In this embodiment, the tip tool 91 is held between the tool mounting portion 511 and the clamp head 521 of the clamp shaft 52.

[0043] The motor 53 is a brushless DC motor and comprises a stator, a rotor positioned radially inward of the stator, and an output shaft 531 that rotates integrally with the rotor. The rotation axis MX of the output shaft 531 of the motor 53 is perpendicular to the drive axis TX of the spindle 51 and extends parallel to the front-rear direction and the extending direction of the housing 2.

[0044] As shown in Figure 3, the transmission mechanism 55 is arranged across the first portion 381 and the second portion 382 of the metal housing 38. The transmission mechanism 55 is configured to transmit the rotational motion of the motor 53 to the spindle 51 and to cause the spindle 51 to reciprocate within a predetermined angular range around the drive axis TX. The transmission mechanism 55 includes an eccentric shaft 551, a connecting arm 553, and a drive bearing 555.

[0045] The eccentric shaft 551 is connected to the front end of the output shaft 531 of the motor 53. The eccentric shaft 551 extends forward from the front end of the output shaft 531 at a position offset radially outward from the rotation axis MX. Due to the rotation of the output shaft 531, the eccentric shaft 551 rotates about the rotation axis MX at a position offset radially outward from the rotation axis MX.

[0046] The drive bearing 555 is mounted on the outer circumference of the eccentric shaft 551. The outer surface of the drive bearing 555 has a curved shape in which the central portion in the front-rear direction rises radially outward. The drive bearing 555 is sometimes also called a sphere bearing.

[0047] The connecting arm 553 is a component that connects the drive bearing 555 and the spindle 51. Specifically, one end of the connecting arm 553 is fixed to the spindle 51, and the other end is connected to the eccentric shaft 551. The connecting arm 553 reciprocates around the spindle 51 as a pivot point due to the rotational motion of the eccentric shaft 551.

[0048] An annular portion 554 is formed at the front end of the connecting arm 553, and a pair of arm portions 552 are formed at the rear end of the connecting arm 553. The annular portion 554 is fixed to the outer circumference of the upper end of the spindle 51. The pair of arm portions 552 are positioned to abut the outer circumference of the drive bearing 555. The connecting arm 553 is connected to the eccentric shaft 551 by the pair of arm portions 552 sandwiching the drive bearing 555 in the left-right direction.

[0049] When the motor 53 is driven, the eccentric shaft 551 rotates integrally with the output shaft 531. As the eccentric shaft 551 rotates around the rotation axis MX, the drive bearing 555 also moves around the rotation axis MX. In the eccentric rotational motion of the eccentric shaft 551, the eccentric shaft 551 reciprocates in the left-right direction relative to the rotation axis MX. Due to the left-right reciprocating motion of the eccentric shaft 551, the pair of arm sections 552 of the connecting arm 553 rotate while swinging in the left-right direction.

[0050] The spindle 51 receives the lateral oscillation of a pair of arm sections 552 via the annular section 554, and is reciprocated in the circumferential direction around the drive axis TX. As a result, the tip tool 91 fixed to the tool mounting section 511 of the spindle 51 oscillates around the drive axis TX. The user can perform machining operations with the vibrating tool 100 by pressing the tip tool 91 against the workpiece.

[0051] A4. External configuration of Attachment 200: As shown in Figure 4, the attachment 200 comprises a mounting member 70, a restricting member 40, and a connecting member 80 that rotatably connects the mounting member 70 and the restricting member 40. The attachment 200 is detachably attached to the vibrating tool 100 by the mounting member 70. With the attachment 200 attached to the vibrating tool 100, the relative movement of the vibrating tool 100 with respect to an object is restricted by the restricting member 40.

[0052] A5. Configuration of the regulating member 40: As shown in Figure 5, the regulating member 40 contacts the object and restricts the relative movement of the vibrating tool 100 with respect to the object. The regulating member 40 includes a shaft portion 42 and a stopper portion 44.

[0053] The shaft portion 42 is a long member that extends in a straight line. In this embodiment, the shaft portion 42 has a substantially rectangular prism shape. In a cross section perpendicular to the long axis QX, the cross-sectional shape of the shaft portion 42 is substantially square with a width SW. Multiple teeth 421 are formed on each side of the shaft portion 42 around the long axis QX.

[0054] Multiple teeth 421 are arranged along the long axis QX. Multiple teeth 421 are part of a ratchet mechanism described later and are used to adjust the distance from the connecting member 80 to the stopper portion 44.

[0055] The stopper portion 44 is connected to the tip of the shaft portion 42. The stopper portion 44 has a substantially rectangular parallelepiped shape that extends in a direction perpendicular to the long axis QX. On the side of the stopper portion 44 opposite to the shaft portion 42, with the long axis RX in between, a substantially flat regulating surface 442 is formed. The regulating surface 442 has a substantially rectangular shape and is perpendicular to the long axis QX. The regulating surface 442 restricts the relative movement of the attachment 200 with respect to the object by contacting the object. As a result, the relative movement of the vibrating tool 100 with respect to the object is restricted to the position of the regulating surface 442. Therefore, the attachment 200 can restrict the object from getting closer to the vibrating tool 100 than the regulating surface 442. Because the regulating surface 442 is flat and has a relatively large area, the user can stably operate the vibrating tool 100 while keeping the regulating surface 442 in contact with the object by making surface contact with the regulating surface 442.

[0056] A6. Configuration of mounting member 70: A6-1. Configuration of the clamp section 71 and the distance adjustment section 75: As shown in Figure 1, the mounting member 70 is removably attached to the vibrating tool 100. In this embodiment, the mounting member 70 is mounted on the cylindrical portion 212 of the housing 2 so as to surround the drive axis TX. By mounting the mounting member 70 on the cylindrical portion 212, the attachment 200 is fixed in the vicinity of the tip tool 91.

[0057] As shown in Figure 6, the mounting member 70 is a strip-shaped member made of a resin material. The mounting member 70 comprises a clamp portion 71 having a substantially cylindrical shape, an extended portion 73 extending in one direction from the clamp portion 71, and a distance adjustment portion 75. The clamp portion 71 surrounds the long axis OX and has a substantially cylindrical shape that is short in the axial direction.

[0058] The clamp portion 71 is mounted on the cylindrical portion 212 of the vibrating tool 100 such that its long axis OX is approximately aligned with the drive axis TX of the spindle 51. In the example shown in Figure 1, the mounting member 70 is mounted on the vibrating tool 100 such that the long axis QX of the shaft portion 42 is parallel to the drive axis TX of the tip tool 91. This state of the attachment 200 is also called the "first state".

[0059] In the following explanation, for the sake of clarity, the direction of the attachment 200, corresponding to the long axis OX of the clamp portion 71, is defined as the first direction DZ. As shown in Figure 1, when the mounting member 70 of the attachment 200 is attached to the vibrating tool 100, the side of the mounting member 70 of the attachment 200 on which the tip tool 91 is positioned is defined as the first direction first side Z1, and the opposite side is defined as the first direction second side Z2. The extending direction of the extending portion 73 (the direction corresponding to the long axis PX) is defined as the second direction DX. The side of the extending portion 73 on which the clamp portion 71 is positioned is defined as the second direction first side X1, and the opposite side (the side on which the connecting member 80 is positioned) is defined as the second direction second side X2. The direction perpendicular to the first direction DZ and the second direction DX is defined as the third direction DY. As shown in Figure 1, when the attachment 200 is attached to the vibrating tool 100, the side on which the gripping portion 252 is positioned relative to the attachment 200 is defined as the third direction second side Y2, and the opposite side is defined as the third direction first side Y1.

[0060] As shown in Figure 6, the clamp portion 71 includes a first body 711 positioned on the first side Y1 in the third direction, straddling the long axis PX, and a second body 712 positioned on the second side Y2 in the third direction, straddling the long axis PX. As shown in Figure 7, when the mounting member 70 is viewed along the first direction DZ, the first body 711 and the second body 712 each have a substantially arc shape. The first body 711 and the second body 712 are positioned facing each other with the drive axis TX (long axis OX) in between, forming a substantially cylindrical clamp portion 71. The first body 711 and the second body 712 are elastic, and their separation distance L2 can be adjusted by utilizing this elasticity.

[0061] As shown in Figures 6 to 8, a plurality of protruding walls 716 extending toward the second side Z2 in the first direction are formed at the ends of the first body 711 and the second body 712. As shown in Figure 7, the protruding walls 716 are arranged so as to be approximately equal in distance from each other in the circumferential direction centered on the major axis OX when the clamp portion 71 is viewed along the first direction DZ. The protruding walls 716 have a substantially trapezoidal shape in the radial direction centered on the major axis OX, where the width of the radially inner surface 716W1 is smaller than the width of the radially outer surface 716W2. With this configuration, recesses 717 having a substantially tapered shape that narrows toward the radially outer direction are defined between adjacent protruding walls 716. In this embodiment, there are 12 protruding walls 716 and 12 recesses 717. The position of the recess 717 corresponds to the rotation angle of the adjustable clamp portion 71 around the drive axis TX relative to the cylindrical portion 212 of the vibrating tool 100.

[0062] As shown in Figure 7, the end of the first body 711 on the second side X2 in the second direction is connected to the end of the second body 712 on the second side X2 in the second direction. The end of the first body 711 on the first side X1 in the second direction and the end of the second body 712 on the first side X1 in the second direction are not connected. A first projection 713 extending in the second side X1 in the second direction is formed at the end of the first body 711 on the first side X1 in the second direction. A second projection 714 extending in the second side X1 in the second direction is formed at the end of the second body 712 on the first side X1 in the second direction. The first projection 713 and the second projection 714 function as part of the distance adjustment section 75.

[0063] As shown in Figure 7, the distance adjustment section 75 includes a first projection 713, a second projection 714, a shaft 754, and a dial 752. The shaft 754 is a so-called bolt. As shown in Figure 9, the shaft 754 is inserted through a through hole 713H formed in the first projection 713 and a through hole 714H formed in the second projection 714, and extends along the third direction DY. One end of the shaft 754 is connected to the dial 752, and the shaft 754 rotates relative to the first projection 713 and the second projection 714 as the dial 752 rotates.

[0064] A nut 715 is non-rotatably housed in the through hole 714H relative to the second projection 714. The nut 715 is screwed into a male thread formed on the shaft 754. Therefore, when the dial 752 is rotated clockwise, the shaft 754 rotates relative to the nut 715, causing the nut 715 to move along the shaft 754. As a result, the second projection 714 moves toward the first projection 713 as the nut 715 moves toward the shaft 754. When the dial 752 is rotated counterclockwise, the first projection 713 moves toward the second projection 714.

[0065] With this configuration, the user can steplessly adjust the distance L1 between the first protrusion 713 and the second protrusion 714 in the third direction DY by rotating the dial 752. Furthermore, by adjusting the distance L1, the user can adjust the distance L2 between the first body 711 and the second body 712 in the third direction DY. Therefore, by operating the dial 752, the user can adjust the degree of tightening or loosening of the mounting member 70 on the cylindrical portion 212 of the vibrating tool 100 without using any special tools. Additionally, the user can attach and detach the mounting member 70 from the cylindrical portion 212 using the simple method of operating the dial 752.

[0066] As shown in Figure 10, a locking projection 215 is formed at the upper and front end of the cylindrical portion 212 of the housing 2, projecting forward from the cylindrical portion 212. The locking projection 215 has a substantially trapezoidal shape corresponding to the recess 717 defined between adjacent protruding walls 716 in the clamp portion 71. Note that in Figure 10 and Figure 11 (described later), the operating lever 61 is omitted from the illustration for the sake of ease of understanding the technology. Also, Figure 10 shows the vibrating tool 100 with the tip tool 91 removed.

[0067] When attaching the mounting member 70 to the cylindrical portion 212, the user rotates the dial 752 counterclockwise to separate the first protrusion 713 and the second protrusion 714. For example, the user adjusts the distance L2 between the first body 711 and the second body 712 so that it is longer than the diameter of the cylindrical portion 212. The user positions the first body 711 and the second body 712 around the cylindrical portion 212 of the vibrating tool 100 so as to surround the drive axis TX. At this time, the protruding wall 716 and the recess 717 are positioned on the upper side. When the user rotates the dial 752 clockwise, as shown in Figure 11, the first body 711 and the second body 712 sandwich the cylindrical portion 212, and the mounting member 70 is fixed to the cylindrical portion 212.

[0068] As shown in Figure 12, the user can attach the mounting member 70 to the cylindrical portion 212 by positioning the locking projection 215 in any of the recesses 717, so that the mounting member 70 rotates at any angle around the drive axis TX. In this embodiment, as described above, the multiple recesses 717 are arranged at equal intervals at 12 locations in the circumferential direction centered on the long axis OX. With this configuration, the user can adjust the rotation angle of the mounting member 70 in 30-degree increments around the long axis OX (drive axis TX).

[0069] In the attachment 200 of this embodiment, after fixing the mounting member 70 to the cylindrical portion 212, the user can rotate the dial 752 to slightly separate the first body 711 and the second body 712, thereby rotating the mounting member 70 around the drive axis TX without removing the mounting member 70 from the cylindrical portion 212.

[0070] As shown in Figure 12, the thickness TH of the locking projection 215 in the radial direction centered on the long axis OX is defined as thickness TH. The user operates the dial 752 to separate the first body 711 and the second body 712 by a distance L2 (see Figure 7) greater than or equal to thickness TH. As a result, the locking between the locking projection 215 and the recess 717 can be released. Therefore, the user can rotate the clamp portion 71 around the drive axis TX while suppressing or preventing the mounting member 70 from falling off the cylindrical portion 212.

[0071] In this embodiment, the protruding wall 716 and the recessed portion 717 have a trapezoidal shape, and the locking projection 215 also has a trapezoidal shape. Therefore, when the clamp portion 71 is rotated relative to the cylindrical portion 212, the inclined surface of the locking projection 215 and the inclined surface of the protruding wall 716 come into contact, thereby suppressing or preventing the locking projection 215 and the protruding wall 716 from catching on each other during rotation. Consequently, the user can rotate the clamp portion 71 relative to the locking projection 215 with less force than when the shapes of the protruding wall 716 and the locking projection 215 are rectangular.

[0072] A6-2. Configuration of the extension portion 73: As shown in Figure 4, the extended portion 73 connects the mounting member 70 to the connecting member 80. As shown in Figures 6 to 8, the extended portion 73 has a base portion 730, a recess 734, and an angle-defining portion 736. The base portion 730 extends from the clamp portion 71 along the long axis PX in the second direction, second side X2.

[0073] As shown in Figure 6, the recess 734 is formed in the base portion 730. In this embodiment, the recess 734 is a groove formed around the entire circumference of the long axis PX of the base portion 730. It is formed adjacent to the angle-defining portion 736. As will be described later, the recess 734 can be fitted with the convex first restricting portion 841 and the second restricting portion 842 formed on the connecting member 80 (see Figure 19).

[0074] The angle-defining portion 736 is connected to the tip of the base portion 730. The angle-defining portion 736 is configured to be housed in a housing portion 844 formed in the connecting member 80 (see Figure 19). The angle-defining portion 736 has a plate 738 and a plurality of protrusions 737 formed on the periphery of the plate 738.

[0075] As shown in Figure 6, the plate 738 is a plate-like member in which a surface 738B perpendicular to the long axis PX is formed on the second side X2 in the second direction. As shown in Figure 13, the surface 738B is approximately square, with each side having length LP.

[0076] As shown in Figure 6, the multiple protrusions 737 project from the four corners of the surface 738B in the second direction, second side X2. Each of the multiple protrusions 737 has a roughly rectangular prism shape. The recess 737R is defined by the opposing surfaces of adjacent protrusions 737 and the surface 738B of the plate 738.

[0077] As shown in Figure 13, the distance between adjacent protrusions 737, i.e., the width of the recess 737R, is distance LT and is equally spaced. Distance LT is approximately equal to the width SW of the shaft portion 42 of the restricting member 40 shown in Figure 5. That is, the shaft portion 42 is configured to be positioned in the recess 737R. In this embodiment, the extension portion 73 is provided with four protrusions 737. The four protrusions 737 restrict the shaft portion 42 positioned in the recess 737R from rotating around the long axis PX relative to the extension portion 73.

[0078] Furthermore, as schematically shown in Figure 13, the shaft portion 42 is configured to be positioned in either a first configuration QX1, where the major axis QX of the shaft portion 42 extends in a first direction DZ, or a second configuration QX2, where the major axis QX of the shaft portion 42 extends in a third direction DY, relative to the extension portion 73. This configuration allows the orientation of the major axis QX of the shaft portion 42 relative to the major axis PX of the extension portion 73 to be switched between two mutually orthogonal rotation angles.

[0079] As shown in Figure 14, at the position where the recess 734 is formed in the base portion 730, the cross section perpendicular to the major axis PX has a substantially square shape with side length LR. The base portion 730 at the position where the recess 734 is formed has side S1 positioned in the third direction first side Y1 with respect to the major axis PX, side S2 positioned in the first direction first side Z1 with respect to the major axis PX, side S3 positioned in the third direction second side Y2 with respect to the major axis PX, and side S4 positioned in the first direction second side Z2 with respect to the major axis PX. The length from the outer edge of the angle-defining portion 736 to each side S1 to S4, i.e., the depth of the recess 734, is length LB.

[0080] Of the four sides S1 to S4, sides S1 and S2 have protrusions 735 that extend radially outward by a length LA. The sum of lengths LA and LR is length LQ.

[0081] A7. Configuration of the connecting member 80: As shown in Figure 4, the connecting member 80 connects the mounting member 70 and the restricting member 40. In this embodiment, the connecting member 80 can switch the orientation of the major axis QX of the shaft portion 42 relative to the major axis PX of the extended portion 73 of the mounting member 70 to two mutually orthogonal rotation angles. Furthermore, the connecting member 80 can fix the orientation of the restricting member 40 at multiple rotation angles centered on the major axis QX.

[0082] As shown in Figure 15, the connecting member 80 comprises a main body 88 having a substantially rectangular shape. The main body 88 constitutes the outer casing of the connecting member 80. The main body 88 is provided with a shaft fixing portion 82, a band mounting portion 84, and an insertion portion 86. The shaft fixing portion 82 fixes the shaft portion 42 housed in the insertion portion 86.

[0083] The insertion portion 86 is a through hole that penetrates the main body 88 in one direction. As will be described later, the insertion portion 86 can accommodate the shaft portion 42 such that the extension direction of the insertion portion 86 and the long axis QX of the shaft portion 42 are parallel.

[0084] The band mounting portion 84 is a recess formed on the outer surface of the main body 88. As will be described later, the band mounting portion 84 can accommodate the angle-defining portion 736 of the extended portion 73 of the mounting member 70 such that the long axis PX of the extended portion 73 of the mounting member 70 and the long axis QX of the shaft portion 42 housed in the insertion portion 86 are perpendicular to each other.

[0085] In the following explanation, for the sake of clarity, the direction of extension of the insertion portion 86 of the connecting member 80 is defined as the fourth direction DQ. In this embodiment, as will be described later, the side of the connecting member 80 on which the stopper portion 44 of the restricting member 40 is positioned is defined as the fourth direction first side Q1, and the opposite side is defined as the fourth direction second side Q2. The direction corresponding to the long axis PX of the extension portion 73 housed in the band mounting portion 84 is defined as the fifth direction DP. The side of the connecting member 80 on which the mounting member 70 is positioned is defined as the fifth direction first side P1, and the opposite side is defined as the fifth direction second side P2. The direction perpendicular to the fourth direction DQ and the fifth direction DP is defined as the sixth direction DR. As shown in Figure 4, when the attachment 200 attached to the vibrating tool 100 is in the first state, the side on which the gripping portion 252 is positioned relative to the connecting member 80 is defined as the sixth direction first side R1, and the side on which the tip tool 91 is positioned is defined as the sixth direction second side R2.

[0086] Furthermore, as shown in Figure 15, with respect to the outer surface of the main body 88, the surface located on the fourth direction, first side Q1 with respect to the center point of the main body 88 is also called the first surface 881, and the outer surface located on the fourth direction, second side Q2 with respect to the center point is also called the second surface 882. The outer surface located on the fifth direction, first side P1 with respect to the center point is also called the third surface 883, and the outer surface located on the fifth direction, second side P2 is also called the fourth surface 884. The outer surface located on the sixth direction, second side R2 with respect to the central axis is also called the fifth surface 885, and the outer surface located on the sixth direction, first side R1 is also called the sixth surface 886.

[0087] A7-1. Configuration of the insertion portion 86 and the shaft fixing portion 82: As shown in Figures 15 and 16, the insertion portion 86 is a through hole connecting the first surface 881 and the second surface 882 along the fourth direction DQ. The shaft portion 42 of the regulating member 40 is inserted through the insertion portion 86. The shaft portion 42 can be accommodated in the insertion portion 86 such that the fourth direction DQ and the long axis QX of the shaft portion 42 are parallel.

[0088] As shown in Figure 16, the insertion portion 86 has a substantially square shape corresponding to the cross-sectional shape perpendicular to the major axis QX of the shaft portion 42. With this configuration, the insertion portion 86 can be positioned by switching the rotation angle of the shaft portion 42 around the major axis QX in four directions corresponding to the square at 90-degree intervals. Therefore, by rotating the shaft portion 42, the user can switch the extension direction of the stopper portion 44 connected to the tip of the shaft portion 42 to any direction from direction D1 to direction D4 shown in Figure 4. Direction D1 is the direction in which the position of the tip 44E of the stopper portion 44 is positioned in the third direction, first side Y1 relative to the shaft portion 42. Direction D2 is the direction in which the position of the tip 44E of the stopper portion 44 is positioned in the second direction, first side X1 relative to the shaft portion 42. Direction D3 is the direction in which the position of the tip 44E is positioned in the third direction, second side Y2 relative to the shaft portion 42. Direction D4 is the direction in which the position of the tip 44E is positioned in the second direction, second side X2, relative to the shaft portion 42.

[0089] As shown in Figure 17, the shaft fixing portion 82 includes a lever 820, a coil spring 822, a shaft 824, and a claw 826.

[0090] The claw 826 is formed at the end of the lever 820 on the first side Q1 in the fourth direction. The claw 826 is configured to be able to engage with a plurality of teeth 421 formed on the shaft portion 42 of the regulating member 40 shown in Figure 5.

[0091] The lever 820 is held in the main body 88 so as to be rotatable about the shaft 824. The end of the lever 820 on the second side Q2 in the fourth direction is biased by the coil spring 822 in a direction away from the insertion portion 86. Therefore, the lever 820 is normally held in a position that abuts against the restricting portion 888 formed on the main body 88 (hereinafter also referred to as the "engaged position").

[0092] As shown in Figure 17, when the lever 820 is positioned in the engagement position, the claw 826 enters the insertion portion 86. The user can move the claw 826 in the direction of arrow 82A shown in Figure 17 and retract it from the insertion portion 86 by pressing the lever 820 toward the insertion portion 86 against the biasing force of the coil spring 822. The position in which the claw 826 is retracted from the insertion portion 86 is also called the "non-engaged position".

[0093] As shown in Figure 18, the claw 826 positioned in the meshing position engages with one of the multiple teeth 421 of the shaft portion 42 inserted through the insertion portion 86, thereby locking the shaft portion 42 at any position in the fourth direction DQ. For example, the user can slide the shaft portion 42 along the fourth direction DQ within the insertion portion 86 by pressing the lever 820 to position the claw 826 in the non-meshing position, and by releasing the lever 820, the shaft portion 42 can be locked at any position in the fourth direction DQ. With this configuration, the user can adjust the distance LS from the connecting member 80 to the stopper portion 44 in the extending direction of the shaft portion 42 (more specifically, the distance LS from the first surface 881 of the main body 88 to the restricting surface 442 of the stopper portion 44). In this embodiment, the distance between adjacent teeth 421 on the shaft portion 42 is 1.5 mm (millimeters) or less. Therefore, the distance LS can be adjusted to intervals of 1.5 mm or less. Furthermore, the distance between adjacent teeth 421 is not limited to 1.5 mm; it can be set to any distance such as 2.0 mm, 1.0 mm, or 0.5 mm.

[0094] In this embodiment, the shaft portion 42 and the shaft fixing portion 82 are fitted with a ratchet mechanism that restricts the direction of movement of the shaft portion 42 relative to the shaft fixing portion 82 to the fourth direction, first side Q1. Specifically, as shown in Figure 17, the pawl 826 of the lever 820 has an inclined portion 826T on the surface facing the fourth direction, second side Q2. Also, as shown in Figure 18, the teeth 421 of the shaft portion 42 have a triangular shape with an inclined portion 421T on the surface facing the fourth direction, first side Q1. With this configuration, the user can slide the shaft portion 42 toward the fourth direction, first side Q1 without pressing the lever 820. Furthermore, if the lever 820 is not pressed, the shaft portion 42 will not slide toward the fourth direction, second side Q2. Therefore, the user can adjust the distance LS in a simple manner.

[0095] A7-2. Configuration of the band attachment section 84: As shown in Figures 15 and 19, the band mounting portion 84 accommodates the angle-defining portion 736 of the extended portion 73. By locking the angle-defining portion 736 to the band mounting portion 84, the mounting member 70 is fixed to the connecting member 80. The band mounting portion 84 has a first restricting portion 841, a second restricting portion 842, and a housing portion 844.

[0096] The housing portion 844 is a recess formed in the main body 88. The housing portion 844 has a shape that corresponds to the angle-defining portion 736 of the extended portion 73 of the mounting member 70. As shown in Figure 15, the maximum length of the housing portion 844 in the fourth direction DQ is length LP, which is approximately the same as the length LP of each side of the plate 738 of the angle-defining portion 736 shown in Figure 13.

[0097] The first restricting portion 841 and the second restricting portion 842 are protrusions that project from the wall surface defining the housing portion 844. The shapes of the first restricting portion 841 and the second restricting portion 842 correspond to the shapes of the recesses 734 of the extending portion 73. The first restricting portion 841 protrudes by a length LB from the wall surface 844W1 on the second side Q2 in the fourth direction toward the first side Q1 in the fourth direction, among the wall surfaces defining the housing portion 844. The length LB is approximately the same as the length LB from the outer edge of the angle defining portion 736 shown in Figure 14 to each side S1 to S4 of the recess 734. The second restricting portion 842, similar to the first restricting portion 841, protrudes by a length LB from the wall surface 844W2 on the first side Q1 in the fourth direction toward the second side Q2 in the fourth direction, among the wall surfaces defining the housing portion 844.

[0098] As shown in Figures 19 and 20, when the angle-defining portion 736 is housed in the housing portion 844, the first restricting portion 841 and the second restricting portion 842 engage with the recess 734. Furthermore, as shown in Figure 21, when the angle-defining portion 736 is housed in the housing portion 844, the convex portion 737 of the extending portion 73 is positioned in the housing portion 844 so as not to interfere with the shaft portion 42.

[0099] In this embodiment, the first restricting portion 841 and the second restricting portion 842 further function as direction restricting the direction in which the angle defining portion 736 is inserted into the housing portion 844 to only a predetermined direction. As shown in Figure 20, the first restricting portion 841 and the second restricting portion 842 are configured asymmetrically with respect to each other. More specifically, when the wall surface 844W1 on the second side R2 in the sixth direction of the housing portion 844 is defined as the bottom portion 844B, the first restricting portion 841 is formed from the bottom portion 844B to the fifth surface 885, while the second restricting portion 842 is formed from the bottom portion 844B to near the midpoint of the wall surface 844W2. That is, the height of the second restricting portion 842 in the sixth direction DR is lower than the height of the first restricting portion 841 in the sixth direction DR. The space on the first side R1 in the sixth direction of the second restricting portion 842 can accommodate the protrusion 735 that protrudes from the recess 734.

[0100] With this configuration, when the edge S3 or edge S4 of the recess 734 of the extended portion 73 is oriented toward the sixth direction second side R2 (the recess 734 and the bottom portion 844B are facing each other), the convex portion 735 comes into contact with the second restricting portion 842. Because the movement of the recess 734 toward the sixth direction second side R2 is blocked by the second restricting portion 842, the angle defining portion 736 can only enter the housing portion 844 partway. Therefore, as shown in Figure 20, the recess 734 is housed in the housing portion 844 only when the edge S1 is oriented toward the sixth direction second side R2 and facing the bottom portion 844B, or when the edge S2 is oriented toward the sixth direction second side R2 and facing the bottom portion 844B.

[0101] As shown in Figure 20, when the side S1 of the recess 734 faces the bottom 844B, the long axis QX and the long axis OX (drive axis TX) become parallel. That is, the attachment 200 is in the first state shown in Figures 1 and 4. In the first state of the attachment 200, the restricting surface 442 of the stopper portion 44 is positioned on the first side Z1 in the first direction of the mounting member 70.

[0102] As shown in Figure 22, in the first state, the attachment 200 can position the restricting surface 442 of the stopper portion 44 below, for example, the tip tool 91. Therefore, the user can perform machining operations with the vibrating tool 100 while keeping the distance LT1 between the object OB1 positioned below the vibrating tool 100 and the tip tool 91 constant.

[0103] On the other hand, when the side S2 of the recess 734 faces the bottom 844B, the long axis QX and the long axis OX (drive axis TX) are perpendicular. This state of the attachment 200 is also called the "second state". As shown in Figure 23, in the second state of the attachment 200, the restricting surface 442 of the stopper portion 44 is positioned on the third direction first side Y1 of the mounting member 70. In addition, in the second state of the attachment 200, as in the first state, the extension direction of the stopper portion 44 connected to the tip of the shaft portion 42 can be switched to any direction from direction D1 to direction D4 by rotating the shaft portion 42 around the long axis QX (see Figure 4).

[0104] As shown in Figure 24, in the second state of the attachment 200, the restricting surface 442 of the stopper portion 44 can be positioned, for example, in front of the drive axis TX. Therefore, the second state of the attachment 200 can restrict the tip tool 91 from entering the workpiece OB2 positioned in front of the vibrating tool 100 by a distance LT2 or more.

[0105] A8. Effect: As described above, according to the attachment 200 of this embodiment, the restricting member 40 comprises a shaft portion 42 and a stopper portion 44 connected to the tip of the shaft portion 42. The stopper portion 44 has a restricting surface 442 formed perpendicular to the long axis QX of the shaft portion 42. Since the restricting surface 442 can be brought into surface contact with an object, the user can stably operate the vibrating tool 100 while restricting the relative position of the vibrating tool 100 with respect to the object to the position of the restricting surface 442.

[0106] In the attachment 200, the connecting member 80 is configured to allow adjustment of the distance LS from the connecting member 80 to the stopper portion 44 by switching the position where the claw 826 of the shaft fixing portion 82 and the teeth 421 of the shaft portion 42 come into contact. Therefore, the user can switch the position of the restricting surface 442 relative to the connecting member 80 to any position along the long axis QX of the shaft portion 42. Furthermore, the position of the stopper portion 44 relative to the connecting member 80 can be fixed with a simple configuration using a ratchet mechanism that utilizes the engagement of the claw 826 and the teeth 421.

[0107] In the attachment 200, the insertion portion 86 of the connecting member 80 has a substantially square shape corresponding to the cross-sectional shape of the shaft portion 42. Therefore, the shaft portion 42 can be inserted while rotated at four rotation angles of 90 degrees each, centered on the major axis QX. Thus, the user can switch the orientation of the stopper portion 44 connected to the shaft portion 42 to four rotation angles relative to the connecting member 80.

[0108] The connecting member 80 is configured to be connectable to the mounting member 70 when the restricting member 40 is rotated to multiple rotation angles around the long axis PX of the extending portion 73 by locking the extending portion 73 of the mounting member 70 with the band mounting portion 84. Therefore, the user can adjust the direction of extension of the shaft portion 42 (the direction of the long axis QX) of the drive axis TX of the vibrating tool 100 to multiple rotation angles around the long axis PX of the extending portion 73.

[0109] The connecting member 80 is configured to allow switching between two states of the attachment 200: a first state in which the long axis QX of the shaft portion 42 is parallel to the drive axis TX of the tip tool 91 when the mounting member 70 is attached to the vibrating tool 100, and a second state in which the long axis QX of the shaft portion 42 is parallel to the front-rear direction. Therefore, the user can arbitrarily switch the position of the regulating surface 442 of the stopper portion 44 between below the tip tool 91 and in front of the drive axis TX, depending on the content of the machining work performed by the vibrating tool 100, the type of workpiece, or the working environment during the machining work.

[0110] The clamp section 71 is configured to allow the mounting member 70, which has been rotated to multiple rotation angles around the drive axis TX, to be attached to the vibrating tool 100. Therefore, the user can adjust the position of the connecting member 80 relative to the drive axis TX to multiple rotation angles around the drive axis TX.

[0111] In this embodiment, the clamp portion 71 of the mounting member 70 has 12 recesses 717 arranged at equal intervals in the circumferential direction centered on the long axis OX. Therefore, the user can adjust the rotation angle of the mounting member 70 in 30-degree increments around the drive axis TX relative to the cylindrical portion 212.

[0112] The mounting member 70 includes a distance adjustment section 75 that allows adjustment of the distance L2 between the first body 711 and the second body 712. Therefore, the user can attach, detach, or rotate the mounting member 70 to the cylindrical portion 212 without using any special tools.

[0113] The mounting member 70 is configured so that the separation distance L2 can be adjusted to be greater than or equal to the thickness TH of the protrusion 737 that extends from the outer surface of the cylindrical portion 212 of the vibrating tool 100. Therefore, the user can rotate the mounting member 70 relative to the cylindrical portion 212 by a simple method of adjusting the separation distance L2 to be greater than or equal to the thickness TH using the distance adjustment unit 75. Furthermore, by adjusting the separation distance L2 to be approximately the same as the thickness TH, the user can rotate the clamp unit 71 around the drive axis TX while suppressing or preventing the mounting member 70 from falling off the cylindrical portion 212.

[0114] B. Second Embodiment: B1. Configuration of the vibrating tool 100b: As shown in Figure 25, the vibrating tool 100b according to the second embodiment differs from the vibrating tool 100 according to the first embodiment in that it is equipped with a housing 2b instead of housing 2, but the other configurations are the same. The vibrating tool 100b is detachably fitted with attachment 200b instead of attachment 200.

[0115] As shown in Figure 26, housing 2b differs from housing 2 in that it includes a central portion 25b instead of a central portion 25, and a front end portion 21b instead of a front end portion 21. The central portion 25b includes motor housing 254b, which differs from the motor housing 254 shown in the first embodiment in the configuration of the drive mechanism 5, such as the arrangement of the motor 53. Motor housing 254b houses the motor 53 such that the rotation axis MX of the output shaft 531 of the motor 53 is parallel to the drive axis TX of the spindle 51. The front end portion 21b differs from the configuration of the front end portion 21 in that a rectangular portion 216 is formed instead of a cylindrical portion 212. The rectangular portion 216 houses the motor 53, which is arranged differently from the cylindrical portion 212, and the transmission mechanism 55, which is positioned corresponding to the arrangement of the motor 53. In other words, housing 2b has a rectangular portion 216 with a shape corresponding to the difference in the configuration of the drive mechanism 5, instead of a cylindrical portion 212.

[0116] B2. Configuration of Attachment 200b: B2-1. Configuration of mounting member 70b: As shown in Figures 27 and 28, the configuration of the attachment 200b according to the second embodiment differs from the configuration of the attachment 200 according to the first embodiment in that it includes a mounting member 70b instead of a mounting member 70, and a restricting member 40b instead of a restricting member 40, but the other configurations are the same. The mounting member 70b includes a mounting portion 74 and an extending portion 73b.

[0117] In the attachment 200 of the first embodiment described above, the arrangement of the connecting member 80 with respect to the drive axis TX was adjusted to multiple rotation angles around the drive axis TX by rotating the entire mounting member 70 around the cylindrical portion 212 of the vibrating tool 100. In contrast, in this embodiment, as shown in Figures 29 and 30, in the attachment 200b of this embodiment, the arrangement of the connecting member 80 with respect to the drive axis TX is adjusted to multiple rotation angles around the drive axis TX by attaching and detaching the extension portion 73b from the mounting portion 74 and switching the mounting position of the extension portion 73b around the drive axis TX with respect to the mounting portion 74.

[0118] B2-2. Configuration of regulating member 40b: As shown in Figure 31, the configuration of the restricting member 40b differs from that of the restricting member 40 shown in the first embodiment in that it has a shaft portion 42b instead of a shaft portion 42, but the other configurations are the same as those of the restricting member 40. As shown in Figure 31, the shaft portion 42b is a long, linearly extending member, which is common to the configuration of the shaft portion 42 shown in the first embodiment, but it differs in that it contains a metal shaft 420 inside the shaft portion 42b.

[0119] The metal shaft 420 is a metal rod-shaped member that extends along the long axis QX of the shaft portion 42b. By placing the metal shaft 420 inside the shaft portion 42b, the strength of the shaft portion 42b can be improved. Therefore, even when the shaft portion 42b is formed from a polymer material such as a resin material or elastomer, bending of the shaft portion 42b can be suppressed or prevented. Furthermore, it is possible to reduce the weight compared to when the entire shaft portion 42b is formed from a metal material. Note that the attachment 200b may be equipped with the restricting member 40 shown in the first embodiment instead of the restricting member 40b, and may be equipped with a shaft portion 42 instead of the shaft portion 42b. In this case, the entire shaft portion 42 may be formed from a polymer material such as a resin material or elastomer, or it may be formed from a metal material.

[0120] B3. Configuration of mounting section 74: As shown in Figure 25, the mounting portion 74 is fixed to the rectangular portion 216 of the vibrating tool 100b in a way that prevents rotation. As shown in Figure 27, the mounting portion 74 has a main body 740 and a restricting portion 760 connected to the main body 740. The main body 740 and the restricting portion 760 have shapes that correspond to the shape of the rectangular portion 216 of the vibrating tool 100b.

[0121] Figure 32 shows the vibrating tool 100b with the tip tool 91 and attachment 200b removed. As shown in Figure 32, the rectangular section 216 has a first housing section 216A surrounding the spindle 51 and a second housing section 216B located behind the first housing section 216A and housing the transmission mechanism 55.

[0122] A pair of concave third engagement portions 213 are formed on the left and right sides of the first housing portion 216A. A pair of engagement recesses 218 are formed on the left and right sides of the second housing portion 216B. The pair of third engagement portions 213 and the pair of engagement recesses 218 are arranged in a straight line in the front-rear direction.

[0123] As shown in Figure 33, the main body 740 has a substantially annular shape in plan view. The main body 740 is mounted in the first housing portion 216A of the rectangular portion 216. Specifically, the main body 740 is fixed to the first housing portion 216A such that the center CP of the annular opening in the main body 740 is positioned on the drive axis TX. In this embodiment, the center CP of the opening of the main body 740 coincides with the long axis OX of the mounting portion 74. That is, when the mounting portion 74 is mounted in the rectangular portion 216 of the front end portion 21b, the drive axis TX coincides with the long axis OX and passes through the center CP. The main body 740 has a plurality of first engaging portions 741 and a plurality of guide portions 748 formed thereon, as will be described later.

[0124] As shown in Figure 27, the restricting portion 760 immovably fixes the main body 740 to the second housing portion 216B of the rectangular portion 216. As shown in Figure 33, the restricting portion 760 has a pair of fourth engaging portions 764 and a pair of locking claws 763.

[0125] The pair of fourth engaging portions 764 have a substantially rectangular shape and protrude toward the center CP of the main body 740. The pair of fourth engaging portions 764 are configured to engage with the pair of third engaging portions 213 formed in the first housing portion 216A of the rectangular portion 216 shown in Figure 32. The engagement of the pair of fourth engaging portions 764 and the pair of third engaging portions 213 restricts the rearward movement of the main body 740, the movement of the main body 740 in the direction corresponding to the drive axis TX (up and down direction), and the rotation of the main body 740 around the drive axis TX. Alternatively, the pair of fourth engaging portions 764 may have a concave shape and the pair of third engaging portions 213 may have a convex shape, thereby configuring the pair of third engaging portions 213 and the pair of fourth engaging portions 764 to engage.

[0126] As shown in Figure 27, the pair of locking claws 763 are formed at the tips of a pair of base portions 767 that extend linearly rearward from the main body 740. The pair of locking claws 763 have a snap-fit ​​structure that utilizes the elasticity of the pair of base portions 767 and are configured to engage with a pair of engaging recesses 218 formed in the second housing portion 216B of the rectangular portion 216 shown in Figure 32. The engagement of the pair of locking claws 763 and the pair of engaging recesses 218 restricts the rearward movement of the main body 740, the movement of the main body 740 in the direction corresponding to the drive axis TX (up and down direction), and the rotation of the main body 740 around the drive axis TX. The second housing portion 216B may be provided with a pair of engaging protrusions instead of a pair of engaging recesses 218. In this case, the engaging recesses may be formed at the tips of the pair of base portions 767 instead of the pair of locking claws 763, so that the pair of engaging recesses and the pair of engaging protrusions engage.

[0127] As shown by the dashed line in Figure 34, when attaching the mounting portion 74 to the rectangular portion 216, the main body 740 is temporarily positioned so that its front end is at a position 740F in front of the rectangular portion 216. As shown by the arrows in Figure 34, when the main body 740 is moved backward, the pair of fourth engaging portions 764 engage with the pair of third engaging portions 213, and the pair of locking claws 763 engage with the pair of engaging recesses 218. As a result, the mounting portion 74 is fixed to the rectangular portion 216.

[0128] The restricting portion 760 is not limited to the snap-fit ​​structure shown in this embodiment, and may have any shape, provided that the main body 740 is fixed to the front end portion 21b of the housing 2b. For example, the restricting portion 760 may have a fitting portion that engages with a part of the front end portion 21b instead of the locking claw 763. Also, if the main body 740 includes a configuration that allows it to be fixed to the front end portion 21b, the restricting portion 760 may be omitted. The mounting portion 74 may be configured to be mounted on the cylindrical portion 212 shown in the first embodiment instead of the rectangular portion 216.

[0129] B4. Configuration of extension part 73b: As shown in Figure 27, the extension portion 73b connects the mounting member 70b and the connecting member 80. As shown in Figure 29, the extension portion 73b is detachably attached to the mounting portion 74. As shown in Figure 35, the extension portion 73b differs from the extension portion 73 shown in the first embodiment in that it has a base portion 730b instead of a base portion 730, a recess 734b instead of a recess 734, and a rotating connecting portion 78, but the other configurations are the same.

[0130] As shown in Figure 35, the rotating coupling portion 78 fixes its base portion 730b to the mounting portion 74. Specifically, the rotating coupling portion 78 is configured to fix its base portion 730b so that the long axis PX is oriented at any rotational angle around the drive axis TX. The rotating coupling portion 78 includes a plate 780, a wall portion 781, a second engaging portion 782, and a locking claw 788.

[0131] As shown in Figure 29, the plate 780 abuts against the lower end of the main body 740. As shown in Figure 35, the plate 780 has a substantially arc shape with a curvature corresponding to the annular shape of the main body 740 in plan view.

[0132] In the following explanation, for the sake of clarity, the direction of the attachment 200b is defined as the first direction DZ, which corresponds to the long axis OX of the mounting portion 74. When the mounting member 70b is attached to the vibrating tool 100b, the side of the mounting member 70b on which the tip tool 91 is positioned is defined as the first direction first side Z1, and the opposite side is defined as the first direction second side Z2. The extending direction of the extension portion 73b (the direction corresponding to the long axis PX) is defined as the second direction DX. The second direction DX can also be defined as the radial direction centered on the drive axis TX, the long axis OX, or the center CP. The side of the extension portion 73b on which the mounting portion 74 is positioned is defined as the second direction first side X1, and the opposite side (the side on which the connecting member 80 is positioned) is defined as the second direction second side X2. The second direction first side X1 can also be defined as the radially inward direction, and the second direction second side X2 can also be defined as the radially outward direction. The direction perpendicular to the first direction DZ and the second direction DX, and in which the plate 780 extends, is defined as the circumferential direction DC. As shown in Figure 25, when the vibrating tool 100b with the attachment 200b attached is viewed from above, the clockwise direction with respect to the drive axis TX is defined as the first circumferential direction C1, and the counterclockwise direction is defined as the second circumferential direction C2.

[0133] The wall portion 781 is connected to the first side X1 in the second direction of the plate 780, and extends from the plate 780 to the second side Z2 in the first direction. When the extended portion 73b is mounted on the mounting portion 74, the surface of the second side X2 in the second direction of the wall portion 781 faces the inner circumferential surface of the main body 740, and the surface of the first side X1 in the second direction of the wall portion 781 faces the long axis OX.

[0134] The distance from the wall portion 781 to the base portion 730b, in other words, the width of the plate 780 in the second direction DX, is configured to be slightly wider than the thickness of the main body 740 of the mounting portion 74 in the second direction DX. This configuration allows the plate 780 to be easily fitted between the wall portion 781 and the base portion 730b, and the extension portion 73b and the mounting portion 74 to be easily attached and detached. Therefore, the direction of the regulating member 40 can be easily switched.

[0135] A recess 781R is formed in the wall portion 781. A first elastic body 783 having a substantially cylindrical shape is disposed in the recess 781R. The first elastic body 783 is any elastic material, such as silicone rubber. A portion of the first elastic body 783 is housed in the recess 781R so as to protrude from the wall surface of the wall portion 781 in the second direction, second side X2.

[0136] As shown in Figure 36, when the mounting portion 74 is connected to the extension portion 73b, the first elastic body 783 pressurizes the main body 740 placed on the plate 780. With this configuration, even if the width of the plate 780 in the second direction DX is slightly wider than the thickness of the main body 740 in the second direction DX of the mounting portion 74, rattling of the main body 740 between the base portion 730b and the wall portion 781 can be suppressed or prevented. In this embodiment, an example is shown in which the number of recesses 781R and first elastic bodies 783 is 3, but the number of recesses 781R and first elastic bodies 783 may be one or any number of 2 or more. Also, if the extension portion 73b is stably fixed to the mounting portion 74, the recesses 781R and first elastic bodies 783 may be omitted.

[0137] The locking claw 788 is part of the base 730b and is connected to the second side X2 of the plate 780 in the second direction via a base 787 that extends in the first direction DZ. The base 787 faces the wall 781 across the plate 780.

[0138] The locking claw 788 is formed at the tip of the base portion 787 on the second side Z2 in the first direction and protrudes in the first side X1 in the second direction. As shown in Figure 36, the locking claw 788 has a snap-fit ​​structure that utilizes the elasticity of the base portion 787. When the extended portion 73b of the locking claw 788 is attached to the mounting portion 74, it locks onto the shoulder portion 742 of the main body 740. As a result, the main body 740 of the mounting portion 74 is clamped on the plate 780 by the wall portion 781 (more specifically, the first elastic body 783) and the locking claw 788, and the mounting portion 74 and the extended portion 73b are connected. The locking claw 788, which is locked onto the shoulder portion 742, can be released from the shoulder portion 742 by displacing it in the second side X2 in the second direction against the elastic force of the base portion 787.

[0139] As shown in Figure 35, an operating portion 789 is formed on the locking claw 788. The operating portion 789 protrudes from the tip of the locking claw 788 in the first direction and second side Z2, and is configured to make it easy for the user's finger to grip it. Therefore, the user can easily release the locking between the locking claw 788 and the shoulder portion 742 by manually operating the operating portion 789.

[0140] The base portion 730b connects the rotating connecting portion 78 and the angle defining portion 736. On the second side X2 of the second direction of the locking claw 788, a recess 730R is formed in the base portion 730b for arranging the second elastic body 784. The second elastic body 784 is any elastic material, such as silicone rubber, and has a substantially cylindrical shape. By arranging the second elastic body 784 on the back of the locking claw 788, the load and stress concentration on the base portion 787 due to the elastic deformation of the locking claw 788 can be suppressed, and damage or wear of the locking claw 788 can be suppressed or prevented. Note that the recess 730R and the second elastic body 784 may be omitted.

[0141] As shown in Figure 35, the second engaging portion 782 is formed on the surface of the plate 780 on the second side Z2 in the first direction. The second engaging portion 782 has a substantially rectangular parallelepiped shape and is configured to engage with a plurality of concave first engaging portions 741 formed on the main body 740 shown in Figure 33. The engagement between the first engaging portions 741 and the second engaging portion 782 restricts the movement of the rotating connecting portion 78 in the circumferential direction DC relative to the main body 740. That is, the rotation of the extending portion 73b around the long axis OX relative to the mounting portion 74 is restricted. In the example of Figure 35, four second engaging portions 782 are arranged at equal intervals in the circumferential direction DC on the plate 780, but the number of second engaging portions 782 is not limited to four; it may be one or any number of two or more.

[0142] The second engaging portion 782 may be formed on the second side X2 of the wall portion 781 in the second direction, the first side X1 of the base portion 787 in the second direction, or the first side X1 of the base portion 730b in the second direction, instead of the plate 780. In other words, the second engaging portion 782 may be positioned at any position on the rotating connecting portion 78, assuming that it engages with the first engaging portion 741 formed at any position on the main body 740.

[0143] As shown in Figure 33, the main body 740 has a plurality of first engaging portions 741. In this embodiment, the number of first engaging portions 741 is 10. The number of first engaging portions 741 used in connection between the main body 740 and the extension portion 73b corresponds to the number of second engaging portions 782 formed on the plate 780 (4 in this embodiment).

[0144] The arrangement of the first engaging portions 741 around the center CP of the main body 740 corresponds to the rotation angle around the drive axis TX. The spacing between the multiple first engaging portions 741 is 30 degrees in rotation angle with respect to the center CP. In this embodiment, the engagement position between the second engaging portion 782 and the multiple first engaging portions 741 can be changed to seven locations in 30-degree increments within a 180-degree range in front of the center CP and around the center CP.

[0145] More specifically, as shown in Figure 33, the position of the extension portion 73b relative to the center CP of the mounting portion 74 is configured to be switchable in 30-degree increments within the range from a first position PA to a second position PB. At the first position PA, the extension direction of the extension portion 73b (the direction corresponding to the long axis PX) is approximately parallel to the left-right direction, and the extension portion 73b is positioned to the right of the center CP. At the second position PB, the long axis PX is approximately parallel to the left-right direction, and the extension portion 73b is positioned to the left of the center CP. By positioning the extension portion 73b, for example, at position PC immediately in front of the center CP, the restricting member 40b can be positioned so that the long axis QX of the shaft portion 42b extends in the left-right direction.

[0146] As shown in Figure 29, the main body 740 has a plurality of guide portions 748 formed thereon. The plurality of guide portions 748 are recesses formed on the outer surface of the main body 740. The shape of the guide portions 748 corresponds to the shape of the locking claws 788 of the extension portion 73b. Specifically, the width of the circumferential DC in each guide portion 748 is approximately the same as the width of the circumferential DC of the locking claws 788 of the extension portion 73b. As shown in Figure 33, the arrangement and number of the plurality of guide portions 748 around the long axis OX of the mounting portion 74 corresponds to the rotation angle of the extension portion 73b that can be arranged around the long axis OX. In this embodiment, they are formed at seven locations at 30-degree intervals around the long axis OX in the range from the first position PA to the second position PB.

[0147] B5. Method for changing the arrangement of the restricting member 40b around the drive axis TX: When changing the arrangement of the restricting member 40b around the drive axis TX, the user of the attachment 200b first removes the extended portion 73b from the mounting portion 74. The user manually operates the operating portion 789 connected to the locking claw 788, thereby displacing the locking claw 788 in the second direction, second side X2. As a result, the locking between the locking claw 788 of the extended portion 73b and the shoulder portion 742 of the main body 740 is released. As shown in Figure 29, the user can remove the extended portion 73b from the mounting portion 74 by moving the extended portion 73b downward relative to the mounting portion 74.

[0148] The user positions the extension portion 73b at a desired rotation angle relative to the main body 740. The user brings the end of the main body 740 on the first side Z1 in the first direction into contact with the surface of the plate 780 on the second side Z2 in the first direction, and engages the four second engaging portions 782 with the four first engaging portions 741 corresponding to the desired rotation angle. At this time, the user can properly position the extension portion 73b relative to the main body 740 by aligning the position of the locking claw 788 with the position of the guide portion 748 corresponding to the desired rotation angle among the seven guide portions 748. Furthermore, the operator can align the main body 740 and the extension portion 73b at the desired rotation angle without visually checking the positions of the first engaging portions 741 and the second engaging portions 782.

[0149] When the operator fits the locking claw 788 onto the guide portion 748 and moves the extended portion 73b toward the second side Z2 in the first direction, the slope of the locking claw 788 toward the second side Z2 in the first direction contacts the lower end of the shoulder portion 742. When the extended portion 73b is moved further toward the second side Z2 in the first direction, the locking claw 788 is displaced outward due to the contact between the slope of the locking claw 788 and the shoulder portion 742, and moves over the shoulder portion 742. Having moved over the shoulder portion 742, the locking claw 788 returns to its original position from its outward displacement and locks onto the shoulder portion 742. As a result, as shown in Figure 37, the extended portion 73b is fixed to the main body 740 of the mounting portion 74 in a way that prevents rotation.

[0150] As shown in Figure 38, the cross-sectional shape of the portion of the base 730b in which the recess 734b is formed differs from the cross-sectional shape of the recess 734 shown in the first embodiment in that it does not have a protrusion 735. With this configuration, in this embodiment, the band mounting portion 84 of the connecting member 80 can accommodate the angle defining portion 736 of the extending portion 73b at 90-degree intervals without anisotropy. That is, the orientation of the shaft portion 42b can be switched in four directions around the long axis PX of the extending portion 73b. Therefore, even if the range of rotation angles of the extending portion 73b that can be arranged around the drive axis TX becomes smaller than in the first embodiment, as it is in front of the drive axis TX, for example, as shown in Figure 39, the extending portion 73b can be positioned directly in front of the drive axis TX, while the restricting surface 442 of the stopper portion 44 of the shaft portion 42b can be positioned to the left of the drive axis TX, similar to the first embodiment. Furthermore, as shown by the dashed line 442R in Figure 39, the restricting surface 442 of the stopper portion 44 can also be positioned to the right of the extended portion 73b without switching the position of the extended portion 73b which is positioned directly in front of the drive axis TX.

[0151] B6. Effects: As described above, the attachment 200b according to this embodiment comprises a mounting member 70b, a restricting member 40b, and a connecting member 80. The mounting member 70b is detachably attached to the vibrating tool 100b. The restricting member 40b contacts an object and restricts the relative movement of the vibrating tool 100b with respect to the object. The connecting member 80 connects the restricting member 40 and the mounting member 70b such that when the mounting member 70b is attached to the vibrating tool 100b, the long axis QX of the shaft portion 42b becomes parallel to the drive axis TX. Therefore, similar to the attachment 200 of the first embodiment described above, the user can stably operate the vibrating tool 100b while restricting the relative position of the vibrating tool 100b with respect to an object to the restricting surface 442.

[0152] According to this embodiment, the mounting member 70b comprises a mounting portion 74 and an extending portion 73b. The mounting portion 74 is configured to mount the extending portion 73b at multiple rotation angles around the drive axis TX. Therefore, instead of attaching and detaching the mounting portion 74 to the vibrating tool 100b, the arrangement of the regulating member 40b around the drive axis TX can be switched by a simple method of attaching and detaching the extending portion 73b to the mounting portion 74 fixed to the vibrating tool 100b.

[0153] According to this embodiment, the mounting portion 74 includes a main body 740 having a cylindrical shape that surrounds the drive axis TX. The extension portion 73b is configured to be mounted on the main body 740 at positions that correspond to multiple rotation angles around the drive axis TX. Therefore, the arrangement of the regulating member 40b can be switched to any rotation angle around the drive axis TX by a simple method of attaching and detaching the extension portion 73b to the mounting portion 74 fixed to the vibrating tool 100b.

[0154] According to this embodiment, the mounting portion 74 includes a main body 740 having a cylindrical shape that surrounds the drive axis TX. The extension portion 73b is configured to be mounted on the main body 740 at positions that result in multiple rotation angles. Therefore, the arrangement of the regulating member 40b can be switched to any rotation angle around the drive axis TX by a simple method of attaching and detaching the extension portion 73b to the main body 740 fixed to the vibrating tool 100b.

[0155] According to this embodiment, the extending portion 73b comprises a plate 780, a wall portion 781, and a locking claw 788. The plate 780 extends in a second direction DX and a third direction DY (circumferential direction DC) perpendicular to the drive axis TX when the mounting portion 74 is mounted on the vibrating tool 100b. The wall portion 781 extends from the plate 780 in a first direction DZ parallel to the drive axis TX. The locking claw 788 extends from the plate 780 in a first direction DZ parallel to the drive axis TX and is positioned opposite the wall portion 781. The main body 740 of the mounting portion 74 is positioned on the plate 780 between the wall portion 781 and the locking claw 788. The locking claw 788 is configured to lock onto the shoulder portion 742 of the mounting portion 74, which is positioned between the wall portion 781 and the locking claw 788. By clamping the mounting portion 74 between the wall portion 781 and the locking claw 788 on the plate 780, the mounting portion 74 and the extended portion 73b can be firmly connected. Therefore, the detachment of the extended portion 73b from the mounting portion 74 can be suppressed or prevented.

[0156] According to this embodiment, the mounting portion 74 includes a plurality of guide portions 748 that guide the locking claw 763 to a part of the mounting portion 74 when the locking claw 763 is locked to a part of the mounting portion 74. The user can properly align the extension portion 73b with the main body 740 by a simple method of aligning the position of the locking claw 788 with the position of the guide portion 748 corresponding to the desired rotation angle. Furthermore, the operator can align the main body 740 and the extension portion 73b to the desired rotation angle without visually inspecting the first engaging portion 741 and the second engaging portion 782.

[0157] According to this embodiment, the mounting portion 74 is provided with a first engaging portion 741 having a concave shape. The extending portion 73b is provided with a second engaging portion 782 having a convex shape that engages with the first engaging portion 741. By the simple method of engagement between the first engaging portion 741 and the second engaging portion 782, the movement of the extending portion 73b relative to the mounting portion 74 can be restricted, and the restricting member 40 can be firmly fixed to the mounting portion 74.

[0158] According to this embodiment, the mounting portion 74 includes a restricting portion 760 that engages with the rectangular portion 216 of the housing 2b. The restricting portion 760 restricts the movement of the main body 740 relative to the drive axis TX. Therefore, the attachment 200b can be firmly fixed to the vibrating tool 100b.

[0159] According to this embodiment, a metal shaft 420 is provided inside the shaft portion 42b of the regulating member 40b, extending in the direction of extension of the shaft portion 42b. Therefore, it is possible to suppress or prevent bending of the shaft portion 42b while forming it from a polymer material such as a resin material or elastomer. Furthermore, it is possible to reduce the weight compared to the case where the entire shaft portion 42b is formed from a metal material.

[0160] The vibrating tools 100 and 100b are examples of "power tools". The attachments 200 and 200b are examples of "attachments for power tools". The tip tool 91 and drive axis TX are examples of "tip tool" and "drive axis". The mounting members 70 and 70b, regulating members 40 and 40b, and connecting member 80 are examples of "mounting members", "regulating members", and "connecting members". The shaft portions 42 and 42b, regulating surface 442, and stopper portion 44 are examples of "shaft portions", "regulating surface", and "stopper portions". The insertion portion 86 is an example of an "insertion portion". The lever 820 and claw 826 are examples of "fixing portions". The teeth 421 of the shaft portion 42 are an example of a "first locking portion", and the claw 826 is an example of a "second locking portion". The clamp portion 71 is an example of a "clamp portion," and the extended portions 73, 73b, recess 734, and angle-regulating portion 736 are examples of a "third locking portion." The band mounting portion 84, housing portion 844, second regulating portion 842, and first regulating portion 841 are examples of a "fourth locking portion." The base portion 730, angle-regulating portion 736, and recess 734 are examples of a "base portion," "angle-regulating portion," and "locking recess." The housing portion 844 is an example of a "housing portion," and the first regulating portion 841 and second regulating portion 842 are examples of a "locking projection." The locking projection 215 and recess 717 are examples of a "fifth locking portion," "projection," and "sixth locking portion." The first body portion 711 and second body portion 712 are examples of a "first body portion" and "second body portion." The distance adjustment portion 75 is an example of a "distance adjustment portion." Motor 53 and spindle 51 are examples of "motor" and "spindle".

[0161] Furthermore, the attachments 200, 200b and vibrating tools 100, 100b relating to this disclosure are not limited to the attachments 200, 200b and vibrating tools 100, 100b of the above embodiment. For example, modifications are possible, as are not limited to those described below. At least one of these modifications may be adopted in combination with the attachments 200, 200b and vibrating tools 100, 100b of the embodiment and at least one of the features described in the claims.

[0162] C. Other embodiments: (C1) In the first embodiment described above, an example was shown in which the shaft portion 42 and the shaft fixing portion 82 are provided with a ratchet mechanism that restricts the direction of movement of the shaft portion 42 relative to the shaft fixing portion 82 to the fourth direction first side Q1. In contrast, the shaft portion 42 and the shaft fixing portion 82 do not need to be provided with a ratchet mechanism. That is, the lever 820 does not need to have a pawl 826, and the shaft portion 42 does not need to have teeth 421. In this case, for example, the tip of the lever 820 comes into contact with the shaft portion 42, and the shaft portion 42 can be fixed to the insertion portion 86 by utilizing the frictional force between the lever 820 and the shaft portion 42.

[0163] (C2) In the first embodiment described above, the shaft portion 42 was shown to have a rectangular prism shape. In contrast, the shaft portion 42 may be composed of a prism other than a rectangular prism, such as a hexagonal prism or a triangular prism. In this case, the rotation angle at which the shaft portion 42 can rotate around the major axis QX can be set according to the cross-sectional shape perpendicular to the major axis of the prism. The shaft portion 42 may also have a cylindrical shape. By configuring it in this way, the shaft portion 42 can be rotated steplessly around the major axis QX.

[0164] (C3) In the first embodiment described above, an example was shown in which the restricting member 40 and the connecting member 80 are separate. In contrast, for example, if the shaft portion 42 is not rotated around the long axis QX, the restricting member 40 and the connecting member 80 may be integrally connected.

[0165] (C4) In the first embodiment described above, an example was shown in which the restricting surface 442 of the restricting member 40 has a rectangular shape. In contrast, the restricting surface 442 is not limited to a substantially rectangular shape, but may have any geometric shape other than a rectangle, such as a square or a circle. The restricting surface 442 is not limited to a flat surface, and may include a configuration in which a plane that contacts an object is substantially formed by having, for example, the tips of three or more protrusions that can contact an object.

[0166] (C5) In the first embodiment described above, an example was shown in which the motor 53 is positioned such that the rotation axis MX of the output shaft 531 of the motor 53 is perpendicular to the drive axis TX of the spindle 51. In contrast, the motor 53 may be positioned such that the rotation axis MX and the drive axis TX are parallel. When the rotation axis MX is configured to be parallel to the drive axis TX, the longitudinal direction of the vibrating tool 100 can be defined by the extending direction of the housing 2 (the direction corresponding to the long axis of the housing 2) instead of the rotation axis MX of the output shaft 531 of the motor 53. The extending direction of the housing 2 and the long axis of the housing 2 can be defined by the central axis of the housing 2 or the central axis of the gripping portion 252.

[0167] (C6) In the first embodiment described above, an example was shown in which multiple teeth 421 are formed on each side of the shaft portion 42 around the long axis QX. In contrast, if the shaft portion 42 is not rotated by multiple rotation angles around the long axis QX, multiple teeth 421 may be formed on only one side of the shaft portion 42 around the long axis QX.

[0168] (C7) In the first embodiment described above, an example was shown in which the recess 734 of the extended portion 73 is formed over the entire circumference around the long axis PX of the base portion 730. In contrast, the recess 734 may be formed on a part of the base portion 730. In this case, the first restricting portion 841 and the second restricting portion 842 can be composed of claws 826 or protrusions that can engage with the recess 734.

[0169] In view of the spirit of the present invention and the embodiments described above, the following embodiments can be constructed. At least one of the following embodiments may be adopted in combination with the features of the embodiments and their modifications, or at least one of the features described in each claim. [Aspect 1] The first locking portion of the shaft and the fixing portion of the connecting member have a ratchet mechanism that restricts the direction of movement of the shaft inserted through the insertion portion to one direction.

[0170] [Aspect 2] The aforementioned mounting member is A mounting portion that is detachably attached to the power tool so as to surround the aforementioned drive axis, It includes a third locking portion that is detachably attached to the mounting portion so as to extend from the mounting portion. According to this embodiment, the arrangement of the connecting member and the restricting member around the drive axis can be switched by a simple method of attaching and detaching the third locking member to the mounting part attached to the vibrating tool. The mounting part 74 is an example of a "mounting part," and the extended part 73b and the base part 730b are examples of a "third locking part." [Aspect 3] The mounting portion is configured to accommodate the third locking portion at multiple rotation angles around the drive axis. According to this embodiment, the arrangement of the connecting member and the restricting member can be switched to any rotational angle around the drive axis by a simple method of attaching and detaching the third locking member to the mounting part attached to the vibrating tool.

[0171] [Aspect 4] The mounting portion includes a main body having a cylindrical shape that surrounds the drive axis, The third locking portion is configured to be attached to the main body at the positions corresponding to the multiple rotation angles. According to this embodiment, the arrangement of the connecting member and the regulating member can be switched to any rotation angle around the drive axis by a simple method of attaching and detaching the third locking part to the main body mounted on the vibrating tool. The main body 740 is an example of the "main body".

[0172] [Aspect 5] The third locking portion comprises (i) a plate extending in a direction perpendicular to the drive axis when the mounting portion is mounted on the power tool, (ii) a wall portion extending from the plate in a direction parallel to the drive axis, and (iii) a locking claw extending from the plate in a direction parallel to the drive axis and positioned opposite the wall portion. The mounting portion is positioned on the plate between the wall portion and the locking claw. The locking claw is configured to engage with a part of the mounting portion that is positioned between the wall portion and the locking claw. According to this embodiment, the mounting portion and the third locking portion can be firmly connected by clamping the mounting portion between the wall portion and the locking claw on the plate. Therefore, the detachment of the third locking portion from the mounting portion can be suppressed or prevented. The plate 780, the wall portion 781, and the locking claw 788 are examples of the "plate," "wall portion," and "locking claw."

[0173] [Aspect 6] The mounting portion includes a plurality of guide portions that guide the locking claw to a part of the mounting portion when the locking claw is locked to a part of the mounting portion. According to this embodiment, the user can position the extended portion in the correct position on the main body by a simple method of aligning the locking claw with the guide portion at the desired position. The multiple guide sections 748 are an example of "multiple guide sections".

[0174] [Aspect 7] The mounting portion includes a first engaging portion having a convex or concave shape, The third locking portion includes a second engaging portion having a concave or convex shape that engages with the first engaging portion. According to this embodiment, the movement of the third locking portion relative to the mounting portion can be restricted by a simple method of engaging the first engaging portion and the second engaging portion. The first engaging portion 741 is an example of the "first engaging portion," and the second engaging portion 782 is an example of the "second engaging portion."

[0175] [Aspect 8] The mounting portion includes a restricting portion that is locked to the power tool and restricts the movement of the main body relative to the drive axis. According to this embodiment, the attachment can be firmly fixed to the power tool. The restricting portion 760 is an example of a “restricting portion”.

[0176] [Aspect 9] A metal shaft is provided inside the aforementioned shaft portion, extending in the direction in which the shaft portion extends. According to this embodiment, the weight can be reduced compared to when the shaft portion is formed from a metal material. The metal shaft 420 is an example of a "metal shaft".

[0177] The correspondence between each component (feature) of the above embodiments and each component (feature) of the present disclosure or invention is shown below. However, each component of the embodiments is merely an example and does not limit each component of the present disclosure or invention.

[0178] This disclosure is not limited to the embodiments described above, and can be implemented in various configurations without departing from its spirit. For example, the technical features in the embodiments corresponding to the technical features in each form described in the summary of the invention can be replaced or combined as appropriate in order to solve some or all of the above-described problems, or to achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be deleted as appropriate. [Explanation of Symbols]

[0179] 2,2b...Housing, 4...Controller, 5...Drive mechanism, 6...Locking mechanism, 21,21b...Front end, 23...Rear end, 25,25b...Center part, 29...Switch, 38...Metal housing, 40,40b...Restricting member, 42,42b...Shaft part, 44...Stopper part, 44E...Tip, 51...Spindle, 52...Clamp shaft, 53...Motor, 55...Transmission mechanism, 61...Operating lever, 70, 70b...Mounting member, 71...Clamp part, 73, 73b...Extending part, 74...Mounting part, 75...Distance adjustment part, 80...Connecting member, 82...Shaft fixing part, 84...Band mounting part, 86...Insertion part, 87...Dial, 88...Main body, 91...Tip tool, 93...Battery, 100, 100b...Vibration tool, 200, 200b...Attachment, 212...Cylindrical part, 215...Locking projection, 216...Rectangular part, 216A...Number 1st housing section, 216B...2nd housing section, 218...engaging recess, 252...gripping section, 254, 254b...motor housing, 290...switch knob, 291...switch lever, 331...battery mounting section, 381...first part, 382...second part, 420...metal shaft, 421...teeth, 421T...inclined section, 442...regulating surface, 511...tool mounting section, 521...clamp head, 531...output shaft T, 551...eccentric shaft, 552...arm section, 553...connecting arm, 554...annular section, 555...drive bearing, 711...first body, 712...second body, 713...first projection, 713H...through hole, 714...second projection, 714H...through hole, 715...nut, 716...projecting wall, 716W1...inner surface, 716W2...outer surface, 717...recess, 730, 730b...base, 730R...recess, 734,734b…recess, 735…protrusion, 736…angle regulating part, 737…protrusion, 737R…recess, 738…plate, 738B…surface, 740…main body, 741…first engaging part, 742…shoulder part, 748…guide part, 752…dial, 754…shaft part, 760…regulating part, 763…locking claw, 764…fourth engaging part, 767…base, 780…plate, 781…wall part, 781R…recess, 782…second engaging part, 783…first elastic body, 784…second elastic body, 787…base, 788…locking claw, 789…operation Part, 820...Lever, 822...Coil spring, 824...Shaft, 826...Claw, 826T...Inclined part, 841...First restricting part, 842...Second restricting part, 844...Housing part, 844B...Bottom part, 844W1...Wall surface, 844W2...Wall surface, 881...First surface, 882...Second surface, 883...Third surface, 884...Fourth surface, 885...Fifth surface, 886...Sixth surface, 888...Restricting part, MX...Rotation axis, OB1...Object, OB2...Workpiece, OX...Long axis, PX...Long axis, QX...Long axis, RX...Long axis, TX...Drive axis

Claims

1. An attachment for an electric power tool used in an electric power tool that processes a workpiece by oscillating the tip tool around the drive axis, A mounting member that is detachably attached to the aforementioned power tool, A restricting member that contacts an object and restricts the relative movement of the power tool with respect to the object, The system includes a connecting member that connects the regulating member and the mounting member, The restricting member includes (i) a shaft portion and (ii) a stopper portion connected to the tip of the shaft portion and having a restricting surface perpendicular to the long axis of the shaft portion, The connecting member is configured to connect the regulating member and the mounting member such that, when the attachment for the power tool is mounted on the power tool, the long axis of the shaft portion is parallel to the drive axis of the tip tool, thus achieving a first state. Attachments for power tools.

2. An attachment for an electric tool according to claim 1, The connecting member includes (i) an insertion portion through which the shaft portion can be inserted, and (ii) a fixing portion that abuts against the shaft portion inserted through the insertion portion and can fix the shaft portion, The fixing portion is configured to be able to contact multiple positions on the shaft portion in the extending direction of the shaft portion, The connecting member is configured to adjust the distance from the connecting member to the stopper portion in the extending direction of the shaft portion by switching the position in which the fixing portion abuts the shaft portion. Attachments for power tools.

3. An attachment for an electric tool according to claim 2, The shaft portion has a plurality of first locking portions formed at a plurality of positions in the extending direction of the shaft portion, The fixing portion has a second locking portion that can be locked to each of the plurality of first locking portions, The connecting member is configured such that the distance from the connecting member to the stopper portion in the extending direction of the shaft portion can be adjusted by the locking of the second locking portion and the plurality of first locking portions. Attachments for power tools.

4. An attachment for a power tool according to claim 2 or claim 3, The insertion portion is configured to allow insertion of the shaft portion while it is rotated at multiple rotational angles around the long axis of the shaft portion. Attachments for power tools.

5. An attachment for a power tool according to any one of claims 1 to 4, The aforementioned mounting member is A clamp portion that can be attached to the power tool so as to surround the drive axis, It includes a third locking portion extending from the clamp portion, The aforementioned connecting member is The third locking portion includes a fourth locking portion that can be locked to the third locking portion when it has been rotated to multiple rotation angles around the long axis of the third locking portion, The locking of the third locking portion and the fourth locking portion allows the restricting member, which has been rotated to the plurality of rotation angles around the long axis of the third locking portion, to be connected to the mounting member. Attachments for power tools.

6. An attachment for an electric tool according to claim 5, The connecting member is configured to allow the power tool attachment to be switched between (i) the first state and (ii) the second state in which, when the mounting member is attached to the power tool, the long axis of the shaft is perpendicular to the drive axis of the tip tool and the extending direction of the third locking portion, by the locking of the third locking portion and the third locking portion. Attachments for power tools.

7. An attachment for an electric tool according to claim 6, The third locking portion includes (i) a base portion extending from the clamp portion, (ii) an angle-defining portion connected to the tip of the base portion, and (iii) a locking recess formed in the base portion. The fourth locking portion includes (i) a housing portion capable of accommodating the angle-defining portion rotated to a plurality of rotation angles about the long axis of the base portion, and (ii) a locking projection that locks into the locking recess and fixes the angle-defining portion housed in the housing portion. Attachments for power tools.

8. An attachment for a power tool according to any one of claims 1 to 5, The mounting member includes a clamp portion that is attached to the power tool so as to surround the drive axis, The clamp portion is configured to allow the mounting member, which has been rotated to multiple rotation angles around the drive axis, to be attached to the power tool. Attachments for power tools.

9. An attachment for an electric tool according to claim 8, The clamp portion has a plurality of sixth locking portions that can be locked to a fifth locking portion formed on the power tool. The plurality of sixth locking portions are formed at a plurality of positions corresponding to the plurality of rotation angles with respect to the drive axis, The clamp portion is configured such that the mounting member, rotated to one of the multiple rotation angles around the drive axis, can be mounted on the power tool by engaging the fifth locking portion with one of the multiple sixth locking portions formed at the multiple positions. Attachments for power tools.

10. An attachment for an electric tool according to claim 9, The clamp portion includes a first main body and a second main body, which are arranged opposite each other and capable of clamping the power tool so as to surround the drive axis. The mounting member includes a distance adjustment unit that can adjust the distance between the first main body and the second main body. Attachments for power tools.

11. An attachment for an electric tool according to claim 10, The fifth locking portion is a protrusion that extends from the outer surface of the power tool by a predetermined distance, The mounting member is configured such that the separation distance can be adjusted to be greater than or equal to the distance at which the protrusion extends from the outer surface of the power tool. Attachments for power tools.

12. An electric power tool that processes a workpiece by oscillating the tip tool around the drive axis, Motor and, A spindle configured to oscillate and drive the tip tool around the drive axis using power from the motor, The power tool attachment according to any one of claims 1 to 10 comprises, Power tools.

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