WO2022024626A1

WO2022024626A1 - Power tool

Info

Publication number: WO2022024626A1
Application number: PCT/JP2021/024134
Authority: WO
Inventors: 新悟小杉; 塁秋葉
Original assignee: 工機ホールディングス株式会社
Priority date: 2020-07-29
Filing date: 2021-06-25
Publication date: 2022-02-03
Also published as: CN220279569U; DE212021000432U1; JPWO2022024626A1

Abstract

Provided is a power tool that is unlikely to interfere with work. The power tool 1 has a housing 2. The housing 2 has: a body 2a that houses a motor, etc.; a handle 2b that a worker grips; and an expanded-diameter section 2c that is disposed at an end of the handle 2b and protrudes in the radial direction of the handle 2b. The expanded-diameter section 2c has a battery pack 20 connected thereto. A plate member 30 is mounted to an outer surface of the expanded-diameter section 2c. A variety of additional functions can be added as a result of the plate member 30. A protruding section 2d of the expanded-diameter section 2c protrudes to the outside of the plate member 30, in the left-right direction.

Description

Power tools

The present invention relates to a power tool.

Power tools are required to improve usability by providing various additional functions. The following Patent Document 1 describes a power tool to which a plate-shaped self-luminous portion can be attached as an additional function.

Japanese Unexamined Patent Publication No. 2001-138269

However, there is a first problem that it interferes with the work depending on the place and shape in which the additional function is attached.

Further, there is a second problem that the power tool becomes large due to the attachment of the additional function.

In addition, there is a third problem that it is difficult to distinguish one's own power tool at a work site where workers who own the same type of power tool gather.

Further, there is a fourth problem that the accessory parts should be easily stored and held by the additional function.

An object of the present invention is to provide a power tool that solves at least one of the above-mentioned first to fourth problems.

One aspect of the invention is a power tool. This power tool is provided at an output unit, a drive unit that drives the output unit, a body unit that houses the drive unit, a grip portion that is gripped by an operator, and an end portion of the grip portion. A housing having a diameter-expanded portion protruding in the radial direction of the above-mentioned is provided, and a plate member is mounted on the outer surface of the diameter-expanded portion.

With the plate member attached to the side surface of the enlarged diameter portion, the plate member may be located inside the outermost surface of the enlarged diameter portion.

A battery pack can be attached to the enlarged diameter portion, and even if the plate member is located inside the outermost surface of the battery pack with the plate member attached to the side surface of the enlarged diameter portion. good.

The plate member may have a main surface portion having an additional function and a mounting portion attached to the enlarged diameter portion.

The mounting portion may have a hooking portion for hooking on the diameter-expanded portion, and the diameter-expanded portion may have a hooked portion for hooking the hooked portion.

The mounting portion may have a hole through which a screw passes, and the enlarged diameter portion may have a screw hole portion facing the hole portion and screwing the screw in a state where the plate member is mounted.

It has a hook attached to the enlarged diameter portion and hooked on an external member, and the hook may be attached to the enlarged diameter portion via the screw hole portion.

The plate member and the hook may be simultaneously mounted with the common screw via the screw hole portion.

The enlarged diameter portion is a protrusion outside the outer peripheral portion of the plate member, protruding in the thickness direction from the plate member, or a recess inward from the outermost surface of the enlarged diameter portion, and at least one of the plate members. It may have a recess in which the portion is arranged.

An elastomer may be provided in the enlarged diameter portion, and at least a part of the edge of the protruding portion or the recessed portion may be formed by the elastomer.

The plate member may have a magnetic material.

The plate member may be mounted along the outer surface of the enlarged diameter portion or in close contact with the outer surface.

It should be noted that any combination of the above components and a conversion of the expression of the present invention between methods, systems and the like are also effective as aspects of the present invention.

According to the present invention, it is possible to provide a power tool that solves at least one of the above-mentioned first to fourth problems.

The right side sectional view of the power tool 1 which concerns on Embodiment 1 of this invention. Left side view of the power tool 1. The left side view of the vicinity of the diameter-expanded portion 2c of the power tool 1 in the state where the plate member 30 of FIG. 2 is removed. FIG. 3 is a perspective view of the vicinity of the enlarged diameter portion 2c in a state where the plate member 30 and the battery pack 20 are removed. FIG. 2 is a sectional view taken along the line AA of FIG. BB sectional view of FIG. FIG. 2 is a sectional view taken along the line CC of FIG. The external view of the plate member 30. Orthographic projection of the plate member 30. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2c when the bit holder 17 is provided on the plate member 30. FIG. 10 (A) is a sectional view taken along the line DD. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2c when the bit holder 17 is rotated. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2c in a state where a permanent magnet 37A is provided on the back side of the plate member 30 and the bit 18 and the screw 18A are held in the plate member 30. A perspective view of the vicinity of the enlarged diameter portion 2c as seen from a viewpoint different from that of FIG. The external view of the vicinity of the diameter-expanded portion 2c in the state where the plate member 30 and the hook 16 are attached to the diameter-expanded portion 2c. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cA of the power tool according to the second embodiment of the present invention. FIG. 16 (A) is a cross-sectional view taken along the line EE. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cB of the power tool according to the third embodiment of the present invention. FIG. 18 (A) is a cross-sectional view taken along the line FF. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cC of the power tool according to the fourth embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cD of the power tool according to the fifth embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cE of the power tool according to the sixth embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cF of the power tool according to the seventh embodiment of the present invention. FIG. 23 (A) is a sectional view taken along line GG. (A) is a left side view of the vicinity of the enlarged diameter portion 2cG of the power tool according to the eighth embodiment of the present invention, and (B) is the left side surface of the vicinity of the enlarged diameter portion 2cH of the power tool according to the ninth embodiment of the present invention. figure. (A) is a left side view of the vicinity of the enlarged diameter portion 2cI of the power tool according to the tenth embodiment of the present invention, and (B) is a left side surface of the vicinity of the enlarged diameter portion 2cJ of the power tool according to the eleventh embodiment of the present invention. figure. (A) is a left side view of the vicinity of the enlarged diameter portion 2cK of the power tool according to the twelfth embodiment of the present invention, and (B) is a left side surface of the vicinity of the enlarged diameter portion 2cL of the power tool according to the thirteenth embodiment of the present invention. figure. The left side view near the diameter-expanded portion 2cM of the power tool which concerns on Embodiment 14 of this invention. (A) is a left side view of the vicinity of the enlarged diameter portion 2cN of the power tool according to the fifteenth embodiment of the present invention, and (B) is a sectional view taken along the line HH of FIG. 29 (A). FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cO of the power tool according to the 16th embodiment of the present invention. FIG. 8 is an external view of the vicinity of the enlarged diameter portion 2cB when the bit holder 17 is provided on the plate member 30A in the configuration of FIG. FIG. 18 is an external view of the vicinity of the enlarged diameter portion 2cB in a state where a permanent magnet 37C is provided on the back side of the plate member 30A and the bit 18 and the screw 18A are held on the plate member 30A. FIG. 32 (A) is a sectional view taken along the line JJ. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cB of the power tool according to the 17th embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cB of the power tool according to the eighteenth embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cB of the power tool according to the nineteenth embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cB of the power tool according to the 20th embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cP of the power tool according to the twenty-first embodiment of the present invention. FIG. 38 (A) is a sectional view taken along the line KK. The left side view of the vicinity of the diameter-expanded portion 2cP of the power tool according to the 22nd embodiment of the present invention. The same perspective view. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cQ of the power tool according to the 23rd embodiment of the present invention. FIG. 6 is an external view of the vicinity of the enlarged diameter portion 2cR of the power tool according to the 24th embodiment of the present invention. The left side view of the power tool 1A according to the 25th embodiment of the present invention.

In the following, the same or equivalent components, members, etc. shown in the drawings are designated by the same reference numerals, and duplicate description thereof will be omitted as appropriate. The embodiment is not limited to the invention but is an example. Not all features and combinations thereof described in the embodiments are essential to the invention.

(Embodiment 1) The first embodiment of the present invention will be described with reference to FIGS. 1 to 15. The present embodiment relates to the power tool 1. FIG. 1 defines the front-back and up-down directions of the power tool 1 that are orthogonal to each other. In addition, the direction perpendicular to the front-back and up-down directions is defined as the left-right direction. Determine the left and right sides based on the worker looking forward. The front-rear direction is a direction parallel to the central axis of the output shaft 3a of the motor 3.

The power tool 1 is a cordless type impact driver. The power tool 1 includes a housing 2. The housing 2 is mainly composed of, for example, a resin molded body, and at least a part of the surface of the resin molded body is partially covered with an elastomer, if necessary. Further, the portion of the housing 2 that covers the hammer 7 and the anvil 8 may be made of metal. The housing 2 includes a body portion (cylindrical portion) 2a, a handle portion 2b as a grip portion, and a diameter-expanded portion 2c. The body portion 2a of the housing 2 has a tubular shape, and its central axis is parallel to the front-rear direction. The handle portion 2b extends downward from the intermediate portion of the body portion 2a. A diameter-expanded portion 2c is provided at the lower end of the handle portion 2b.

In the fuselage 2a, in order from the rear, the fan 4, the stator and rotor of the motor 3 as the drive unit, the sensor / inverter circuit board 12, the planetary gear mechanism (deceleration mechanism) 5, the spindle 6, the hammer 7, and the output unit. Anvil 8 is provided. The fan 4 is directly connected to the output shaft 3a of the motor 3 and rotates together with the motor 3 to generate cooling air in the housing 2. The motor 3 is an inner rotor type brushless motor here. The sensor / inverter circuit board 12 is supported by the body portion 2a so as to be perpendicular to the front-rear direction. The sensor / inverter circuit board 12 has a magnetic sensor 13 such as a Hall IC mounted on the back surface, and a plurality of switching elements 14 mounted on the front surface. The magnetic sensor 13 is for detecting the rotational position of the motor 3. The switching element 14 is for supplying a current to the motor 3. The output shaft 3a of the motor 3 penetrates the sensor / inverter circuit board 12 and extends forward. The planetary gear mechanism 5 decelerates the rotation of the motor 3 and transmits it to the spindle 6. The hammer 7 rotates together with the spindle 6 to rotate or hit the anvil 8. A tip tool such as a bit (not shown) is attached to the anvil 8. The spindle 6, the hammer 7, and the anvil 8 constitute a well-known rotary striking mechanism (impact mechanism).

A trigger switch 9 is provided at the upper end front portion of the handle portion 2b. The trigger switch 9 is an operation unit for an operator to switch between driving and stopping the motor 3. The work equipment control board 10 is provided on the upper part of the enlarged diameter portion 2c. The work equipment control board 10 is provided with a microcontroller or the like that controls the drive of the motor 3. A mode switching portion 11 is provided on the upper surface of the enlarged diameter portion 2c. The mode switching unit 11 is an operation unit for switching the operation mode of the power tool 1 between, for example, a strong (high speed), medium (medium speed), and weak (low speed) mode.

The enlarged diameter portion 2c projects outward in the radial direction of the handle portion 2b. The enlarged diameter portion 2c is a battery pack mounting portion, and the battery pack 20 is detachably mounted. The battery pack 20 houses a battery cell and a battery control board 25. The battery control board 25 mounts a communication unit (battery communication unit) 26 for short-range wireless communication. The communication unit 26 is, for example, a BLE (Bluetooth Low Energy) module. As shown in FIG. 5, a panel portion 27 is provided on the outer surface of the battery pack 20. The panel unit 27 is provided with a remaining amount display button 27a and a remaining amount display LED 27b for displaying the remaining amount of the battery pack 20. A convex portion 23 and a latch operating portion 24 are provided on both the left and right sides of the battery pack 20, respectively. The latch operation unit 24 is an operation unit for releasing the locking of the battery pack 20 with respect to the battery pack mounting unit 2c, and is a portion pressed when the battery pack 20 is removed from the battery pack mounting unit 2c. The convex portion 23 is located in the vicinity of the latch operating portion 24. The convex portion 23 is provided to prevent the latch operating portion 24 from being erroneously operated when the power tool 1 is placed horizontally. The convex portion 23 and the latch operating portion 24 form the outermost surface of the battery pack 20 in the left-right direction, and project outward from the plate member 30 described later in the left-right direction. That is, the plate member 30 is located inside the outermost surface of the battery pack 20.

As shown in FIG. 2 and the like, the power tool 1 of the present embodiment is characterized in that the plate member 30 is mounted on the outer surface of the enlarged diameter portion 2c. As shown in FIG. 6 and the like, the plate member 30 is provided on both left and right side surfaces of the enlarged diameter portion 2c. The left and right plate members 30 have a shape that is plane-symmetrical to each other. The plate member 30 may be provided only on either the left or right side surface of the enlarged diameter portion 2c. The plate member 30 has a shape that does not protrude from the side surface of the enlarged diameter portion 2c. The plate member 30 is made of a magnetic material and a metal here, but may be made of a resin, a synthetic resin, carbon, or the like. Further, if the left and right plate members 30 have the same shape, it is not necessary to determine whether the plate member 30 is for the right side or the left side, and the plate member 30 can be easily attached.

As shown in FIGS. 8 and 9, the plate member 30 has a first surface portion 31, a second surface portion 32, and a hook portion 33. The first surface portion 31 and the second surface portion 32 are both flat surfaces in the illustrated example, but may be curved surfaces or uneven surfaces. The first surface portion 31 is a plane closer to vertical than the second surface portion 32. The second surface portion 32 is connected above the first surface portion 31. The second surface portion 32 is an example of the main surface portion. The first surface portion 31 and the second surface portion 32 are mounted along or in close contact with the outer surface of the enlarged diameter portion 2c, respectively. The first surface portion 31 is provided with a screw insertion hole 34 as a hole portion and a hook insertion hole 35. A convex portion insertion hole 36 is provided so as to straddle the first surface portion 31 and the second surface portion 32. The hook portion 33 and the screw insertion hole 34 are examples of a mounting portion for mounting the plate member 30 to the enlarged diameter portion 2c.

As shown in FIG. 4 and the like, the enlarged diameter portion 2c is provided with a convex portion 2d, a hook locking hole 2e, a screw hole portion 2f, and a hooked portion 2g. As shown in FIGS. 5 and 6, the convex portion 2d is a protruding portion that penetrates the convex portion insertion hole 36 of the plate member 30 and projects outward from the plate member 30. The top of the convex portion 2d forms the outermost surface of the enlarged diameter portion 2c in the left-right direction. The plate member 30 is located inside the top of the convex portion 2d in the left-right direction in a state of being attached to the enlarged diameter portion 2c. As shown in FIGS. 6 and 7, at least a part of the surface of the enlarged diameter portion 2c is composed of the elastomer 2p, and the surface of the convex portion 2d is also composed of the elastomer 2p. That is, the outermost surface of the enlarged diameter portion 2c in the left-right direction is composed of the elastomer 2p. The convex portion 2d serves as a grounding portion when the power tool 1 is placed horizontally, and suppresses damage to the desk surface and the mating material.

The hook locking hole 2e is a hole for inserting and locking the base end portion of the hook 16 shown in FIG. The base end portion of the hook 16 penetrates the hook insertion hole 35 of the plate member 30 and is fitted into the hook locking hole 2e. The screw hole portion 2f is provided for screwing the screw 15 for fixing the plate member 30 and the hook 16. The screw 15 penetrates the screw insertion hole 34 of the plate member 30 and is screwed into the screw hole portion 2f. The screw 15 is also for fixing the hook 16. When both the hook 16 and the plate member 30 are attached to the enlarged diameter portion 2c, the screw 15 penetrates the through hole 16a of the hook 16 and the screw insertion hole 34 of the plate member 30 and is screwed into the screw hole portion 2f. The hooked portion 2g is a portion for hooking (locking) the hooking portion 33 of the plate member 30.

The plate member 30 can be used to add various additional functions. 10 and 11 show an example in which the bit holder 17 is provided on the second surface portion 32 of the plate member 30 by utilizing the magnetic force of the permanent magnet 37. The permanent magnet 37 may be integrally provided on the second surface portion 32 of the plate member 30, or may be integrally provided on the bit holder 17, and is separate from the plate member 30 and the bit holder 17 and is a plate member. It may be provided between 30 and the bit holder 17. At least one of the bit holder 17 and the plate member 30 is made of a magnetic material. The bit 18 is held in the bit holder 17. This makes it easier to take the bit 18 and improves workability. As shown in FIG. 12, the bit holder 17 is rotated with respect to the plate member 30. As a result, the operator can hold the bit 18 in the desired direction, and the workability is improved. The permanent magnet 37 may be located on the surface of the first surface portion 31, and the bit holder 17 may be provided on the first surface portion 31.

13 and 14 show an example in which a permanent magnet 37A is provided on the back surface of the second surface portion 32 of the plate member 30 and the bit 18 and the screw 18A are held on the second surface portion 32. The permanent magnet 37A is invisible to the operator. The bit 18 and the screw 18A are attracted to the surface of the second surface portion 32 of the plate member 30 by the magnetic force of the permanent magnet 37A. This makes it easier to remove the bit 18 and the screw 18A, and improves workability. A permanent magnet 37A may be provided on the back surface of the first surface portion 31 to hold the bit 18 and the screw 18A on the first surface portion 31. Alternatively, a permanent magnet 37A may be provided on the back surfaces of both the first surface portion 31 and the second surface portion 32 to hold the bit 18 and the screw 18A on the surfaces of both the first surface portion 31 and the second surface portion 32. The plate member 30 may hold accessory parts that are magnetic materials, such as a tip tool and fasteners other than the bit 18 and the screw 18A.

FIG. 15 shows an example in which the plate member 30 and the hook 16 are attached to the enlarged diameter portion 2c. The plate member 30 and the hook 16 can be simultaneously attached to the enlarged diameter portion 2c with a common screw 15. An external member can be hooked on the hook 16. It is compatible that the hook 16 is attached to the enlarged diameter portion 2c together with the plate member 30 and that the bit holder 17 is provided on the plate member 30 or the bit 18 or the screw 18A is adsorbed as shown in FIGS. 12 to 14. be. If the bit holder 17 interferes with the hook 16, a smaller size than the bit holder 17 may be selected.

According to this embodiment, the following effects can be obtained.

(1) Since the plate member 30 is attached to the surface of the enlarged diameter portion 2c, it does not easily interfere with the operator gripping the handle portion 2b. Since the enlarged diameter portion 2c is on the opposite side of the anvil 8 or the like with the handle portion 2b in between, the plate member 30 does not easily get in the way when the operator sees the tip tool attached to the anvil 8 (it is difficult to get into the line of sight). .. Further, by mounting the plate member 30, the strength of the enlarged diameter portion 2c can be improved.

(2) The plate member 30 is along or in close contact with the outer surface of the enlarged diameter portion 2c. Further, the plate member 30 is located inside the enlarged diameter portion 2c and the outermost surface of the battery pack 20 in the left-right direction. Therefore, it is suppressed that the plate member 30 interferes with the work, and the increase in size of the power tool 1 due to the mounting of the plate member 30 is also suppressed. In addition, damage to the plate member 30 is also suppressed.

(3) By attaching the plate member 30, the operator can easily distinguish his / her own power tool 1 from other power tools of the same type to which the plate member 30 is not attached. The color of the plate member 30 can be selected from a plurality of types, and in this case, the operator can easily distinguish his / her own power tool 1 from the power tool 1 to which the plate member 30 of another color is attached. In addition, the name of the owner can be written on the plate member 30 by laser engraving or the like, or decoration can be added by water transfer, painting, or plating, thereby further enhancing the originality. It is also one of the additional functions of the plate member 30 that the appearance of the power tool 1 can be made unique (easy to distinguish from other power tools of the same type) by the plate member 30. By giving the appearance its own uniqueness, it is possible to meet the demands of workers who want tools with a different appearance from others.

(4) The plate member 30 makes it possible to add various additional functions, which is convenient. For example, accessory parts such as a bit 18 and a screw 18A can be easily stored and held, which is convenient.

(5) The hook 16 can be attached to the enlarged diameter portion 2c together with the plate member 30, which is convenient for the operator who uses the hook 16. Since the common screw 15 and the screw hole portion 2f are used for fixing the plate member 30 and the hook 16, the plate member 30 and the hook 16 can be easily attached, and the enlargement of the diameter-expanded portion 2c can be suppressed.

(Other Embodiments) FIGS. 16 and 17 relate to the second embodiment of the present invention. The diameter-expanded portion 2cA has a wider flat portion on both side surfaces that is substantially perpendicular to the left-right direction as compared with the diameter-expanded portion 2c. The plate member 30A is mounted on each flat surface portion of both side surfaces of the enlarged diameter portion 2cA. The plate member 30A has a hooking portion having the same configuration as the hooking portion 33 of the plate member 30, and the portion other than the hooking portion is a plane substantially perpendicular to the left-right direction and is along or in close contact with both side surfaces of the enlarged diameter portion 2cA. do. The plate member 30A has a shape that does not protrude from the side surface of the enlarged diameter portion 2cA. Similar to the plate member 30, the plate member 30A is mounted on the enlarged diameter portion 2cA by the locking by the hooking portion and the fastening force of the screw 15. The plate member 30A can also have an additional function like the plate member 30.

18 and 19 relate to Embodiment 3 of the present invention. The enlarged diameter portion 2cB is different from the enlarged diameter portion 2cA in that it has a rib 2h that surrounds the plate member 30A over the entire circumference, and is otherwise consistent. The rib 2h is a protrusion extending outward from the same position as the plate member 30A or preferably beyond the plate member 30A in the left-right direction. The rib 2h can suppress the rattling of the plate member 30A and prevent an object from being caught on the edge of the plate member 30A. The rib 2h can alleviate the impact when the power tool is placed on a work table or the like with the plate member 30A on the lower side, and can protect the plate member 30A from external force.

FIG. 20 relates to a fourth embodiment of the present invention. The enlarged diameter portion 2cC differs from the enlarged diameter portion 2cA in that it has four ribs 2i that partially surround the plate member 30A, and is otherwise consistent. The ribs 2i are provided for each of the four corners of the plate member 30A. The rib 2i is a protrusion extending outward from the same position as the plate member 30A or preferably beyond the plate member 30A in the left-right direction. The rib 2i can suppress the rattling of the plate member 30A and prevent an object from being caught on the edge of the plate member 30A. The rib 2i can alleviate the impact when the power tool is placed on a work table or the like with the plate member 30A on the lower side, and can protect the plate member 30A from external force.

FIG. 21 relates to a fifth embodiment of the present invention. The enlarged diameter portion 2cD differs from the enlarged diameter portion 2cA in that it has four ribs 2j that partially surround the plate member 30A, and is otherwise consistent. The ribs 2j are provided for each of the four sides of the plate member 30A. The rib 2j is a protrusion extending outward from the same position as the plate member 30A in the left-right direction, preferably more than the plate member 30A. The rib 2j can suppress the rattling of the plate member 30A and prevent an object from being caught on the edge of the plate member 30A. The rib 2j can alleviate the impact when the power tool is placed on a work table or the like with the plate member 30A on the lower side, and can protect the plate member 30A from external force.

FIG. 22 relates to a sixth embodiment of the present invention. The enlarged diameter portion 2cE differs from the enlarged diameter portion 2cA in that it has two ribs 2k that partially surround the plate member 30A, and is otherwise consistent. The ribs 2k are provided for the front upper corner portion and the rear lower corner portion of the plate member 30A, respectively. The rib 2k is a protrusion extending outward from the same position as the plate member 30A or preferably beyond the plate member 30A in the left-right direction. The rib 2k suppresses the rattling of the plate member 30A and also suppresses the catching of an object on the edge of the plate member 30A. The rib 2k can alleviate the impact when the power tool is placed on a work table or the like with the plate member 30A on the lower side, and can protect the plate member 30A from external force.

23 and 24 relate to Embodiment 7 of the present invention. External view of the vicinity of the enlarged diameter portion 2cF. The diameter-expanded portion 2cF differs from the diameter-expanded portion 2cA in that it has a recess (recessed portion) of 2 m (see FIG. 24) into which the plate member 30A is fitted, and is the same in other respects. The recess 2m is a portion recessed inward from the outermost surface of the enlarged diameter portion 2cF in the left-right direction. The recess 2m has a depth equal to or greater than the thickness of the plate member 30A. The upper edge of the recess 2m is composed of an elastomer 2p. The elastomer 2p is a protrusion above the plate member 30A at the same position as the plate member 30A in the left-right direction, or preferably extending outward from the position. The elastomer 2p can alleviate the impact when the power tool is placed on a work table or the like with the plate member 30A on the lower side, and can protect the plate member 30A from external force.

FIG. 25 (A) relates to the eighth embodiment of the present invention. Unlike the plate member 30A, the plate member 30B is mounted on the enlarged diameter portion 2cG regardless of the screw 15. The plate member 30B has hooking portions 33A in the front and rear, respectively. The enlarged diameter portion 2cG has a hooked portion corresponding to the hooked portion 33A. FIG. 25B relates to a ninth embodiment of the present invention. The plate member 30C has hooking portions 33B on the upper and lower sides instead of the hooking portions 33A of the plate member 30B. The enlarged diameter portion 2cH has a hooked portion corresponding to the hooked portion 33A.

FIG. 26 (A) relates to the tenth embodiment of the present invention. The plate member 30D is mounted on the side surface of the enlarged diameter portion 2cI by the locking by the hooking portion 33A on the front side and the adhesive force of the double-sided tape 37B. FIG. 26B relates to the eleventh embodiment of the present invention. The plate member 30E does not have a hooking portion, and is attached to the side surface of the enlarged diameter portion 2cJ by the adhesive force of the double-sided tapes 37B at two front and rear positions. The double-sided tape 37B may be replaced with a non-tape adhesive.

FIG. 27 (A) relates to a twelfth embodiment of the present invention. The plate member 30F is mounted on the side surface of the enlarged diameter portion 2cK by the fastening force of the two front and rear screws 15. FIG. 27B relates to a thirteenth embodiment of the present invention. In this embodiment, the fastening of the screw 15 is added to the configuration shown in FIG. 25 (A). The plate member 30G is mounted on the side surface of the enlarged diameter portion 2cL by the locking force of the front and rear hooking portions 33A and the fastening force of the screw 15. FIG. 28 is a left side view of the vicinity of the enlarged diameter portion 2cM of the power tool according to the fourteenth embodiment of the present invention. In this embodiment, fastening with screws 15 is added to the configuration shown in FIG. 25 (B). The plate member 30H is mounted on the side surface of the enlarged diameter portion 2cM by the locking force of the upper and lower hooking portions 33B and the fastening force of the screw 15.

FIG. 29 relates to embodiment 15 of the present invention. The plate member 30I is attached to the side surface of the enlarged diameter portion 2cN by the adhesive force of the double-sided tape 37B on the front side and the fastening force of the screw 15 on the rear side. FIG. 30 relates to embodiment 16 of the present invention. The plate member 30J is detachably attached to the enlarged diameter portion 2cO with one touch by the slider 2n. When the slider 2n is slid forward (in the direction of arrow I), the lock by the slider 2n is released and the plate member 30J can be removed. A hooking portion 33A may be provided on the front portion of the plate member 30J in the same manner as in FIG. 26 (A).

FIG. 31 shows an example in which the bit holder 17 is provided on the plate member 30A in the configuration of FIG. The permanent magnet 37 is used for attaching the bit holder 17 to the plate member 30A as in the examples of FIGS. 10 to 12. The bit holder 17 can be arbitrarily rotated in the same manner as in FIG. 32 and 33 show an example in which the permanent magnet 37C is provided on the back side of the plate member 30A and the bit 18 and the screw 18A are held on the plate member 30A in the configuration of FIG.

FIG. 34 relates to embodiment 17 of the present invention. The plate member 30K has a scale 39 represented at the upper end thereof. The scale 39 can be used, for example, for measuring the length and diameter of screws and metal fittings, and improves workability. FIG. 35 relates to embodiment 18 of the present invention. The surface of the plate member 30L is a material that can be easily wiped off with a dry cloth or the like after writing characters or pictures with a whiteboard marker or the like. The entire plate member 30L may be such a material, or the surface of the plate member 30L may be such a material by coating. According to this, the worker can write favorite characters and pictures on the plate member 30L, and can give an original feeling (it can be easily distinguished).

FIG. 36 relates to embodiment 19 of the present invention. The plate member 30M has a light 39A and a switch 39B. The light 39A faces diagonally forward and upward so as to illuminate the work area. Workability is improved by illuminating the work area with the light 39A. The switch 39B is an operation unit that switches between turning on and off the light 39A. The power supply of the light 39A may be taken from the battery pack 20 mounted on the battery pack mounting portion 2c, or may be taken from a battery (not shown) incorporated in the plate member 30M.

FIG. 37 relates to an embodiment 20 of the present invention. The plate member 30N has a light 39C and a switch 39D. The light 39C is a surface light emitting type and illuminates the sides of the plate member 30N widely. The light 39C can illuminate the workplace, which is convenient. The switch 39D is an operation unit for switching on / off of the light 39C. The power supply of the light 39C may be taken from the battery pack 20 mounted on the battery pack mounting portion 2c, or may be taken from a battery (not shown) incorporated in the plate member 30N.

The addition of the additional functions in FIGS. 31 to 37 is for the configurations of FIGS. 18 and 19, but the configurations of FIGS. 16, 17, 20 to 30 are also changed as they are or with necessary changes. Applicable.

38 and 39 relate to embodiment 21 of the present invention. The plate member 30P has a U-shape, is provided so as to straddle the left and right side surfaces and the back surface of the enlarged diameter portion 2cP, and is fixed to the left and right both side surfaces of the enlarged diameter portion 2cP by screws 15. Ribs 2q are provided on both side surfaces of the enlarged diameter portion 2cP. The rib 2q supports the upper edge portion, the lower edge portion, and the leading edge portion of the plate member 30P, and suppresses rattling and rotation of the plate member 30P. The rib 2q is a protruding portion that protrudes outward from the same position as the plate member 30P or preferably from the plate member 30P in the left-right direction. 40 and 41 relate to embodiment 22 of the present invention. A U-shaped hook portion 39E is provided at the rear portion of the plate member 30Q. A carabiner 39F is provided on the U-shaped hook portion 39E. In the configurations of FIGS. 38 to 41, additional functions as shown in FIGS. 31 to 37 can be added. The U-shaped plate member can be provided on both the left and right sides and the front surface of the enlarged diameter portion 2cP. In this case, the battery pack 20 is mounted on the battery pack mounting portion 2c of the power tool 1, and then the U-shaped plate member is mounted. As a result, the U-shaped plate is arranged so as to cover the battery pack 20 on the battery pack mounting portion 2c of the power tool 1, so that it is possible to prevent the battery pack 20 from falling off and to improve dustproof and waterproof properties. Will be.

FIG. 42 relates to a 23rd embodiment of the present invention. The plate member 30R has a shape protruding from the side surface of the enlarged diameter portion 2cQ. Specifically, the plate member 30R extends downward from the lower edge portion of the side surface of the enlarged diameter portion 2c in a state of being attached to the side surface of the enlarged diameter portion 2c. However, the plate member 30R has a shape that does not overlap with the convex portion 23 and the latch operating portion 24 of the battery pack 20.

FIG. 43 relates to an embodiment 24 of the present invention. The battery pack 20A mounted on the enlarged diameter portion 2cR is a single latch type and has a latch operating portion 24A on the front surface. The plate member 30S mounted on the side surface of the enlarged diameter portion 2cR extends forward from the leading edge portion of the side surface of the enlarged diameter portion 2cR. Since the battery pack 20A does not have the latch operating portion 24A on the left and right side surfaces, the latch operating portion 24A corresponds to this even if the plate member 30S extends forward from the leading edge portion of the side surface of the enlarged diameter portion 2cR. Does not interfere with.

FIG. 44 is a left side view of the power tool 1A according to the 25th embodiment of the present invention. The power tool 1A is a cordless type board driver. The power tool 1A includes a housing 2A. The housing 2A includes a body portion 2Aa, a handle portion 2Ab, and an enlarged diameter portion 2Ac. The handle portion 2Ab extends rearward from the body portion 2Aa. A trigger switch 9A is provided at the upper end of the handle portion 2Ab. A diameter-expanded portion 2Ac is provided at the lower end of the handle portion 2Ab. The plate member 30T is mounted on the side surface of the enlarged diameter portion 2Ac. The battery pack 20 is connected to the enlarged diameter portion 2Ac.

Although the present invention has been described above by taking the embodiment as an example, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, a modification example will be touched upon.

The power tool of the present invention is not limited to the impact driver and the board driver exemplified in the embodiments, and may be other types having a diameter-expanded portion at the end of the handle portion, and may be an external alternating current. It may be a type with a cord that operates with the power supplied from the power supply. The additional function utilizing the plate member may be a combination of any plurality of embodiments. For example, the plate member 30 may be provided with a scale 39 as shown in FIG. 34, and may be easily written or erased by a marker as shown in FIG. 35, or the bit holder 17 may be detachable as shown in FIG. 31. Then, as shown in FIG. 32, the bit 18 and the screw 18A may be adsorbable. The plate member may have a phosphorescent function. According to this, the visibility in the dark is enhanced. Alternatively, characters or the like may be written on the plate member with a marker having a phosphorescent property.

1,1A ... Power tool, 2 ... Housing, 2a ... Body part (cylindrical part), 2b ... Grip part (handle part), 2c, 2cA-2cR ... Diameter expansion part (battery pack mounting part), 2d ... Convex part , 2e ... Hook locking hole, 2f ... Screw hole part, 2g ... Hooked part, 2h to 2k ... Rib, 2m ... Recessed part (recessed part), 2n ... Slider, 2p ... Elastoma (elastic material), 2q ... Rib, 3 ... Motor (electric motor), 3a ... Output shaft (rotary shaft), 4 ... Fan, 5 ... Planetary gear mechanism (deceleration mechanism), 6 ... Spindle, 7 ... Hammer, 8 ... Anvil, 9 ... Trigger switch, 10 ... Tool side control board, 11 ... Mode switching unit, 12 ... Sensor / inverter circuit board, 13 ... Magnetic sensor (Hall IC), 14 ... Switching element, 15 ... Screw, 16 ... Hook, 16a ... Base end, 16b ... Penetration Hole (long hole), 17 ... bit holder, 17a ... permanent magnet, 18 ... bit, 18A ... screw, 20 ... battery pack, 23 ... convex part, 24 ... latch operation part, 25 ... battery side control board, 26 ... near Distance wireless communication unit (BLE module), 27 ... remaining amount display unit, 27a ... remaining amount display button, 27b ... remaining amount display LED, 30, 30A to 30N, 30P to 30T ... plate member, 31 ... first surface part, 32 ... 2nd surface, 33, 33A, 33B ... Hooking part, 34 ... Screw insertion hole (hole), 35 ... Hook insertion hole, 36 ... Convex insertion hole, 37, 37A ... Permanent magnet, 37B ... Double-sided tape, 37C ... Permanent magnet, 38 ... Slider, 39 ... Scale, 39A ... Light, 39B ... Switch, 39C ... Light, 39D ... Switch, 39E ... U-shaped hook, 39F ... Carabina.

Claims

Output section and
The drive unit that drives the output unit and
A housing having a body portion for accommodating the drive portion, a grip portion gripped by an operator, and a diameter-expanded portion provided at an end portion of the grip portion and protruding in the radial direction of the grip portion is provided.
A power tool characterized in that a plate member is mounted on the outer surface of the enlarged diameter portion.
The power tool according to claim 1.
A power tool characterized in that, in a state where the plate member is attached to a side surface of the enlarged diameter portion, the plate member is located inside the outermost surface of the enlarged diameter portion.
The power tool according to claim 1 or 2.
A battery pack can be attached to the enlarged diameter portion.
A power tool characterized in that, in a state where the plate member is attached to a side surface of the enlarged diameter portion, the plate member is located inside the outermost surface of the battery pack.
The power tool according to any one of claims 1 to 3.
The plate member is a power tool having a main surface portion having an additional function and a mounting portion attached to the enlarged diameter portion.
The power tool according to claim 4.
The mounting portion has a hooking portion for hooking on the enlarged diameter portion.
The enlarged diameter portion is a power tool having a hooked portion for hooking the hooked portion.
The power tool according to claim 4 or 5.
The mounting portion has a hole through which a screw passes, and the enlarged diameter portion has a screw hole portion facing the hole portion and screwing the screw in a state where the plate member is mounted. Power tool.
The power tool according to claim 6.
It has a hook that is attached to the enlarged diameter portion and hooked on an external member.
The hook is a power tool characterized in that it is attached to the enlarged diameter portion via the screw hole portion.
The power tool according to claim 7.
A power tool characterized in that the plate member and the hook can be simultaneously mounted with the common screw via the screw hole portion.
The power tool according to any one of claims 1 to 8.
The enlarged diameter portion is a protrusion outside the outer peripheral portion of the plate member, protruding in the thickness direction from the plate member, or a recess inward from the outermost surface of the enlarged diameter portion, and at least one of the plate members. A power tool characterized by having a recess in which the portion is arranged.
The power tool according to claim 9.
An elastomer is provided in the enlarged diameter portion, and an elastomer is provided.
A power tool characterized in that at least a part of the edge of the protruding portion or the recessed portion is composed of the elastomer.
The power tool according to any one of claims 1 to 10.
The plate member is a power tool having a magnetic material.
The power tool according to any one of claims 1 to 11.
The plate member is a power tool that is mounted along the outer surface of the enlarged diameter portion or in close contact with the outer surface.