CN220279569U - Power tool - Google Patents

Abstract

The utility model provides a power tool which is not easy to interfere with operation. The power tool (1) has a housing (2). The housing (2) has: a main body part (2 a) for accommodating a motor and the like; a handle portion (2 b) for an operator to hold: and an expanded diameter portion (2 c) provided at an end of the handle portion (2 b) and protruding in a radial direction of the handle portion (2 b). A battery pack (20) is connected to the expanded diameter section (2 c). A plate member (30) is mounted on the outer surface of the diameter-enlarged portion (2 c). Various additional functions can be added by the plate member (30). The convex part (2 d) of the diameter-enlarged part (2 c) protrudes to the outside of the plate member (30) in the left-right direction.

Description

Power tool

Technical Field

The present utility model relates to a power tool.

Background

In a power tool, it is desired to improve usability by providing various additional functions. Patent document 1 below describes a power tool capable of mounting a plate-like self-luminous portion as an additional function.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2001-138269A

Disclosure of Invention

Problems to be solved by the utility model

However, there are the following first problems: the location or shape of the attachment function may interfere with the operation.

Further, there is a second problem as follows: installing additional functions results in an enlarged power tool.

Further, there is a third problem as follows: in a work site where workers who have the same kind of power tools concentrate, it is difficult to distinguish their own power tools.

Further, there is a fourth problem as follows: it is desirable to easily store and hold accessories by additional functions.

The present utility model aims to provide a power tool which solves at least one of the first to fourth problems.

[ means of solution to problem ]

One embodiment of the present utility model is a power tool. The power tool is characterized by comprising: an output unit; a driving unit that drives the output unit; and a housing having: a main body portion for accommodating the driving portion; a holding part for an operator to hold; and an expanded diameter portion provided at an end of the grip portion, protruding in a radial direction of the grip portion, and having a plate member mounted along an outermost surface of the expanded diameter portion.

The enlarged diameter portion may be provided with a convex portion, and the convex portion may be formed as a part of the outermost surface by penetrating a convex portion insertion hole provided in the plate member in a state where the plate member is assembled.

The plate member may have: a main face having an additional function; and a mounting portion mounted to the expanded diameter portion.

The mounting portion may have a hooking portion hooked to the diameter-enlarging portion, the diameter-enlarging portion may have a hooked portion for hooking the hooking portion.

The mounting portion may have a hole portion through which a screw passes, and the diameter-enlarged portion may have a screw hole portion which faces the hole portion in a state in which the plate member is mounted, and into which the screw is screwed.

The present utility model may be configured such that the hook is attached to the diameter-enlarged portion, and is hooked by an external member, and the hook is attached to the diameter-enlarged portion via the screw hole portion.

The plate member and the hook may be simultaneously assembled by the common screw via the screw hole portion.

The diameter-enlarged portion may have a protruding portion protruding in a thickness direction thereof than the plate member, on an outer side than an outer peripheral portion of the plate member; or a recessed portion recessed inward from an outermost surface of the expanded diameter portion, at least a part of the plate member being disposed.

An elastic body may be provided in the expanded diameter portion, and at least a part of the edge of the protruding portion or the recessed portion may include the elastic body.

The plate member may have a magnetic body.

The plate member may be fitted along the outer surface of the expanded diameter portion or closely to the outer surface.

The expanded diameter portion may have a battery pack fitting portion for detachably fitting a battery pack for driving the output portion.

The method can have the following steps: a first face portion extending in a vertical direction and provided with the mounting portion; and a second face portion extending in a direction intersecting the first face portion and provided with the main face portion, the first face portion and the second face portion being flush with the outermost surface in a state in which the plate member is mounted.

The second face portion may extend inward as going to the upper side in the vertical direction in a state where the plate member is assembled.

Any combination of the above structural elements, or the present utility model expressed in terms of a method, a system, or the like is also effective as an embodiment of the present utility model.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present utility model, a power tool that solves at least one of the first to fourth problems can be provided.

Drawings

Fig. 1 is a right side cross-sectional view of a power tool 1 according to embodiment 1 of the present utility model.

Fig. 2 is a left side view of the power tool 1.

Fig. 3 is a left side view of the power tool 1 in the vicinity of the enlarged diameter portion 2c in a state where the plate member 30 of fig. 2 is removed.

Fig. 4 is a perspective view of the vicinity of the enlarged diameter portion 2c in a state where the plate member 30 and the assembled battery 20 are removed.

Fig. 5 is a section A-A of fig. 2.

Fig. 6 is a sectional view of B-B of fig. 2.

Fig. 7 is a C-C section view of fig. 2.

Fig. 8 (a) to 8 (C) are external views of the plate member 30.

Fig. 9 (a) to 9 (E) are front projection views of the plate member 30.

Fig. 10 (a) and 10 (B) are external views of the vicinity of the enlarged diameter portion 2c in the case where the head holder 17 is provided to the plate member 30.

Fig. 11 is a D-D sectional view of fig. 10 (a).

Fig. 12 (a) and 12 (B) are external views of the vicinity of the enlarged diameter portion 2c when the head holder 17 is rotated.

Fig. 13 (a) and 13 (B) are external views of the vicinity of the enlarged diameter portion 2c where the permanent magnet 37A is provided on the back side of the plate member 30 and the state of the bit 18 and the screw 18A is held by the plate member 30.

Fig. 14 is a perspective view of the vicinity of the enlarged diameter portion 2c as viewed from a point different from fig. 13.

Fig. 15 (a) and 15 (B) are external views of the vicinity of the enlarged diameter portion 2c in a state where the plate member 30 and the hooks 16 are attached to the enlarged diameter portion 2c.

Fig. 16 (a) and 16 (B) are external views of the vicinity of the enlarged diameter portion 2cA of the power tool according to embodiment 2 of the present utility model.

Fig. 17 is an E-E sectional view of fig. 16 (a).

Fig. 18 (a) and 18 (B) are external views of the vicinity of the enlarged diameter portion 2cB of the power tool according to embodiment 3 of the present utility model.

Fig. 19 is a F-F cross-sectional view of fig. 18 (a).

Fig. 20 (a) and 20 (B) are external views of the vicinity of the enlarged diameter portion 2cC of the power tool according to embodiment 4 of the present utility model.

Fig. 21 (a) and 21 (B) are external views of the power tool according to embodiment 5 of the present utility model in the vicinity of the enlarged diameter portion 2 cD.

Fig. 22 (a) and 22 (B) are external views of the power tool according to embodiment 6 of the present utility model in the vicinity of the enlarged diameter portion 2 cE.

Fig. 23 (a) and 23 (B) are external views of the vicinity of the enlarged diameter portion 2cF of the power tool according to embodiment 7 of the present utility model.

Fig. 24 is a G-G sectional view of fig. 23 (a).

Fig. 25 (a) is a left side view of the vicinity of the enlarged diameter portion 2cG of the power tool according to embodiment 8 of the present utility model, and fig. 25 (B) is a left side view of the vicinity of the enlarged diameter portion 2cH of the power tool according to embodiment 9 of the present utility model.

Fig. 26 (a) is a left side view of the power tool according to embodiment 10 of the present utility model in the vicinity of the enlarged diameter portion 2cI, and fig. 26 (B) is a left side view of the power tool according to embodiment 11 of the present utility model in the vicinity of the enlarged diameter portion 2 cJ.

Fig. 27 (a) is a left side view of the power tool according to embodiment 12 of the present utility model in the vicinity of the enlarged diameter portion 2cK, and fig. 27 (B) is a left side view of the power tool according to embodiment 13 of the present utility model in the vicinity of the enlarged diameter portion 2 cL.

Fig. 28 is a left side view of the power tool according to embodiment 14 of the present utility model in the vicinity of the enlarged diameter portion 2 cM.

Fig. 29 (a) is a left side view of the vicinity of the enlarged diameter portion 2cN of the power tool according to embodiment 15 of the present utility model, and fig. 29 (B) is a H-H cross-sectional view of fig. 29 (a).

Fig. 30 (a) and 30 (B) are external views of the power tool according to embodiment 16 of the present utility model in the vicinity of the enlarged diameter portion 2cO.

Fig. 31 (a) and 31 (B) are external views of the vicinity of the enlarged diameter portion 2cB in the case where the plate member 30A is provided with the bit holder 17 in the configuration of fig. 18.

Fig. 32 (a) and 32 (B) are external views of the structure of fig. 18, in which a permanent magnet 37C is provided on the back side of the plate member 30A, and the plate member 30A holds the enlarged diameter portion 2cB of the bit 18 and the screw 18A.

Fig. 33 is a J-J cross-sectional view of fig. 32 (a).

Fig. 34 (a) and 34 (B) are external views of the power tool according to embodiment 17 of the present utility model in the vicinity of the enlarged diameter portion 2 cB.

Fig. 35 (a) and 35 (B) are external views of the power tool according to embodiment 18 of the present utility model in the vicinity of the enlarged diameter portion 2 cB.

Fig. 36 (a) and 36 (B) are external views of the power tool according to embodiment 19 of the present utility model in the vicinity of the enlarged diameter portion 2 cB.

Fig. 37 (a) and 37 (B) are external views of the power tool according to embodiment 20 of the present utility model in the vicinity of the enlarged diameter portion 2 cB.

Fig. 38 (a) and 38 (B) are external views of the power tool according to embodiment 21 of the present utility model in the vicinity of the enlarged diameter portion 2 cP.

FIG. 39 is a K-K cross-sectional view of FIG. 38 (A).

Fig. 40 is a left side view of the power tool according to embodiment 22 of the present utility model in the vicinity of the enlarged diameter portion 2 cP.

Fig. 41 is a perspective view of the vicinity of the enlarged diameter portion 2cP of the power tool according to embodiment 22 of the present utility model.

Fig. 42 (a) and 42 (B) are external views of the power tool according to embodiment 23 of the present utility model in the vicinity of the enlarged diameter portion 2 cQ.

Fig. 43 (a) and 43 (B) are external views of the power tool according to embodiment 24 of the present utility model in the vicinity of the enlarged diameter portion 2 cR.

Fig. 44 is a left side view of the power tool 1A according to embodiment 25 of the present utility model.

[ description of symbols ]

1. 1A: power tool

2: shell body

2a: main body (barrel)

2b: holding part (handle part)

2c, 2cA to 2cR: expanding part (assembled battery assembly part)

2d: convex part

2e: hook locking hole

2f: screw hole part

2g: hooked part

2 h-2 k: rib part

2m: concave part (concave part)

2n: sliding piece

2p: elastomer (elastic material)

2q: rib part

3: motor (electric motor)

3a: output shaft (rotating shaft)

4: fan with fan body

5: planet gear mechanism (speed reducing mechanism)

6: rotating shaft

7: hammer

8: anvil block

9: trigger switch

10: tool side control substrate

11: mode switching unit

12: sensor/inverter circuit board

13: magnetic sensor (Hall IC)

14: switching element

15: screw

16: hook

16a: base end portion

16b: through hole (long hole)

17: head fixing device

17a: permanent magnet

18: batch head

18A: screw

20: battery pack

23: convex part

24: latch operating part

25: battery side control board

26: near field communication part (BLE module)

27: residual electric quantity display part

27a: remaining power display button

27b: residual electric quantity display LED

30. 30A to 30N, 30P to 30T: plate member

31: first face

32: a second surface

33. 33A, 33B: hook part

34: screw inserting hole (hole part)

35: hook insertion hole

36: protruding portion insertion hole

37. 37A: permanent magnet

37B: double-sided adhesive tape

37C: permanent magnet

38: sliding piece

39: graduation scale

39A: lamp with light-emitting device

39B: switch

39C: lamp with light-emitting device

39D: switch

39E: u-shaped hook

39F: hook ring

Detailed Description

The same or equivalent structural elements, members, etc. shown in the drawings will be denoted by the same reference numerals, and repetitive description thereof will be omitted as appropriate. The embodiments are examples, and do not limit the utility model. All the features described in the embodiments or a combination thereof are not necessarily essential to the utility model.

Embodiment 1 of the present utility model will be described with reference to fig. 1 to 15. The present embodiment relates to a power tool 1. The front-rear, up-down directions orthogonal to each other in the power tool 1 are defined by fig. 1. The direction perpendicular to the front-rear and up-down directions is defined as the left-right direction. The left and right directions are determined based on the operator who observes the front direction. 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 impact driver. The power tool 1 includes a housing 2. The case 2 mainly includes, 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 as needed. Also, the portion of the housing 2 covering the hammer 7 and anvil 8 may be metal. The housing 2 includes a main body portion (cylindrical portion) 2a, a handle portion 2b as a grip portion, and an enlarged diameter portion 2c. The main body 2a of the housing 2 has a cylindrical shape, and its center axis is parallel to the front-rear direction. The handle portion 2b extends downward from the middle portion of the main body portion 2a. An enlarged diameter portion 2c is provided at the lower end of the handle portion 2b.

In the main body 2a, a fan 4, a stator and a rotor of a motor 3 as a driving portion, a sensor/inverter circuit board 12, a planetary gear mechanism (reduction mechanism) 5, a rotating shaft 6, a hammer 7, and an anvil 8 as an output portion are provided in this order from the rear. The fan 4 is directly connected to the output shaft 3a of the motor 3 and rotates together with the motor 3, thereby generating cooling air in the housing 2. Here, the motor 3 is an inner rotor type brushless motor. The sensor/inverter circuit board 12 is supported by the main body 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 integrated circuit (Integrated Circuits, IC) mounted on the back surface thereof, and a plurality of switching elements 14 mounted on the front surface thereof. The magnetic sensor 13 is used for rotational position detection of the motor 3. The switching element 14 is used to supply power to the motor 3. The output shaft 3a of the motor 3 extends forward through the sensor/inverter circuit board 12. The planetary gear mechanism 5 decelerates the rotation of the motor 3 and transmits to the rotating shaft 6. The hammer 7 rotates together with the shaft 6 to rotate or strike the anvil 8. A tip tool such as a tool bit, not shown, is attached to the anvil 8. The rotary shaft 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 front part of the upper end of the handle 2b. The trigger switch 9 is an operation unit for switching the driving and stopping of the motor 3 by the operator. A work implement control board 10 is provided at an upper portion in the enlarged diameter portion 2c. A microcontroller or the like for controlling the driving of the motor 3 is provided on the work implement control board 10. The mode switching unit 11 is provided on the upper surface of the diameter-enlarged 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), a medium (middle speed), and a weak (low speed) mode.

The enlarged diameter portion 2c protrudes radially outward of the handle portion 2b. The expanded diameter portion 2c is a battery pack attachment portion, and the battery pack 20 is detachably attached. The battery pack 20 accommodates unit cells and a battery control board 25. The battery control board 25 is mounted with a communication unit (battery communication unit) 26 for short-range wireless communication. The communication unit 26 is, for example, a bluetooth low energy (Bluetooth Low Energy, BLE) module. As shown in fig. 5, a panel portion 27 is provided on the outer surface of the battery pack 20. A remaining power display button 27a and a remaining power display LED27b for displaying the remaining power of the battery pack 20 are provided on the panel portion 27. The battery pack 20 is provided with a protruding portion 23 and a latch operating portion 24 on both left and right side surfaces thereof. The latch operation portion 24 is an operation portion for releasing the locking of the battery pack 20 to the battery pack attachment portion 2c, and is a portion that is pressed when the battery pack 20 is detached from the battery pack attachment portion 2c. The protruding portion 23 is located in the vicinity of the latch operating portion 24. The protruding portion 23 is provided to prevent the latch operating portion 24 from being erroneously operated when the power tool 1 is placed sideways. The protruding portion 23 and the latch operating portion 24 form the outermost surface of the battery pack 20 in the left-right direction, and protrude further outside than a plate member 30 described below in the left-right direction. That is, the plate member 30 is located further inside than 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 a 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 members 30 are provided on both left and right side surfaces of the expanded diameter portion 2c. The left and right plate members 30 are in a shape that is plane-symmetrical to each other. The plate member 30 may be provided only on either the left or right side of the enlarged diameter portion 2c. The plate member 30 is shaped so as not to protrude from the side surface of the enlarged diameter portion 2c. The plate member 30 is made of a magnetic material and is made of metal, but may be made of resin, synthetic resin, carbon, or the like. Further, if the shapes of the left and right plate members 30 are set to be the same, it is not necessary to determine whether the plate member 30 is for the right or the left, and the installation of the plate member 30 becomes easy.

As shown in fig. 8 and 9, the plate member 30 includes a first surface portion 31, a second surface portion 32, and a hooking portion 33. In the illustrated example, the first surface 31 and the second surface 32 are both planar, but may be curved surfaces or uneven surfaces. The first face 31 is a plane closer to vertical than the second face 32. The second face 32 is connected to the upper side of the first face 31. The second face 32 is an illustration of a primary face. The first surface 31 and the second surface 32 are fitted along the outer surface of the enlarged diameter portion 2c or closely together. The first surface 31 is provided with a screw insertion hole 34 and a hook insertion hole 35 as hole portions. A convex insertion hole 36 is provided across the first face 31 and the second face 32. The hooking portion 33 and the screw insertion hole 34 are examples of mounting portions 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 hooking hole 2e, a screw hole portion 2f, and a hooked portion 2g. As shown in fig. 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 protrudes outward from the plate member 30. The top of the protruding portion 2d forms the outermost surface of the expanded diameter portion 2c in the left-right direction. The plate member 30 is located further inward in the lateral direction than the top of the convex portion 2d in a state of being attached to the enlarged diameter portion 2c. As shown in fig. 6 and 7, at least a part of the surface of the expanded diameter portion 2c includes the elastic body 2p, and the surface of the convex portion 2d also includes the elastic body 2p. That is, the outermost surface of the expanded diameter portion 2c in the left-right direction includes the elastic body 2p. The protruding portion 2d serves as a ground contact portion when the power tool 1 is placed horizontally, and prevents damage to the table top or the target material.

The hook locking hole 2e is a hole for inserting and locking the base end portion of the hook 16 shown in fig. 15. 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 2 e. Screw hole portions 2f are provided to screw the screws 15 of the fixing plate member 30 and the hooks 16. The screw 15 penetrates the screw insertion hole 34 of the plate member 30 and is screwed to the screw hole portion 2f. Screws 15 are also used to secure hooks 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 of the hooking portion 33 of the hooking (locking) plate member 30.

The plate member 30 may be used to add various additional functions. Fig. 10 and 11 show an example in which the head holder 17 is provided on the second surface portion 32 of the plate member 30 by 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, may be integrally provided on the head holder 17, or may be provided between the plate member 30 and the head holder 17 separately from the plate member 30 and the head holder 17. At least one of the head holder 17 and the plate member 30 is made of a magnetic material. The bits 18 are held by bit holders 17. This facilitates the use of the head 18, and improves workability. As shown in fig. 12 (a) and 12 (B), the head holder 17 is rotatable with respect to the plate member 30. This allows the operator to hold the head 18 in a desired orientation, thereby improving workability. The position of the permanent magnet 37 may be set to the surface of the first surface 31, and the head holder 17 may be provided to the first surface 31.

Fig. 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 bits 18 and the screws 18A are held by the second surface portion 32. The permanent magnet 37A is not visible to the operator. The screwdriver 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. Thus, the screwdriver bit 18 or the screw 18A can be easily used, and workability is improved. The permanent magnet 37A may be provided on the back surface of the first surface 31, and the head 18 and the screw 18A may be held on the first surface 31. Alternatively, the permanent magnet 37A may be provided on the back surface of both the first surface 31 and the second surface 32, and the head 18 and the screw 18A may be held on the surfaces of both the first surface 31 and the second surface 32. A tool or a fastener at the front end of the plate member 30 other than the bit 18 and the screw 18A may be held as an attachment of a magnetic body.

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 by a common screw 15. The external member may be hooked at the hook 16. The hook 16 and the plate member 30 are attached to the enlarged diameter portion 2c, and the head holder 17, the suction head 18, and the screw 18A are provided on the plate member 30 as shown in fig. 12 (a) to 14. In the case where the head holder 17 interferes with the hook 16, a size smaller than the head holder 17 may be selected.

According to the present embodiment, the following effects can be exhibited.

(1) Since the plate member 30 is attached to the surface of the enlarged diameter portion 2c, it is not easy to prevent the operator from gripping the handle portion 2b. The enlarged diameter portion 2c is located on the opposite side of the anvil 8 or the like with respect to the handle portion 2b, and therefore the plate member 30 is less likely to be obstructed (less likely to enter the line of sight) when the operator views the tool tip attached to the anvil 8. Further, by assembling 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. The plate member 30 is located further inward in the lateral direction than the expanded diameter portion 2c and the outermost surface of the battery pack 20. Therefore, the plate member 30 can be prevented from interfering with the operation, and the power tool 1 can be prevented from being enlarged due to the assembly of the plate member 30. Further, damage to the plate member 30 can be suppressed.

(3) By attaching the plate member 30, the operator can easily distinguish the own power tool 1 from other power tools of the same kind not attached to the plate member 30. The color of the plate member 30 may be selected from a plurality of kinds, and in this case, the operator can easily distinguish the own power tool 1 from the power tools 1 to which the plate members 30 of other colors are attached. The present utility model can be further developed by writing the name of the owner or the like in the plate member 30 by laser engraving or the like, or by decoration by water transfer or painting or plating. The appearance of the power tool 1 (the ease of distinction from other power tools of the same kind) is also distinguished by the plate member 30 as one of the additional functions of the plate member 30. By making the appearance distinct, the operator can also meet the expectations that the operator wants tools with an appearance different from that of others.

(4) Various additional functions can be added to the plate member 30, which is convenient. For example, accessories such as the head 18 and the screw 18A can be stored and held easily, which is convenient.

(5) The hook 16 may be attached to the enlarged diameter portion 2c together with the plate member 30, and it is convenient for an operator who uses the hook 16. Since the plate member 30 and the hook 16 are fixed by the common screw 15 and the screw hole portion 2f, the plate member 30 and the hook 16 can be easily attached, and the enlarged diameter portion 2c can be prevented from being enlarged.

(other embodiment) fig. 16 and 17 relate to embodiment 2 of the present utility model. The enlarged diameter portion 2cA is larger in the plane portion substantially perpendicular to the left-right direction in the both side surfaces than the enlarged diameter portion 2c. The plate member 30A is mounted on each of the planar portions on both side surfaces of the enlarged diameter portion 2cA. The plate member 30A has a hooking portion having the same structure 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 closely contacted with or along both side surfaces of the enlarged diameter portion 2cA. The plate member 30A is shaped so as not to protrude from the side surface of the enlarged diameter portion 2cA. The plate member 30A is mounted on the enlarged diameter portion 2cA by the engagement of the hook portion and the tightening force of the screw 15, similarly to the plate member 30. The plate member 30A can also add additional functions as with the plate member 30.

Fig. 18 and 19 relate to embodiment 3 of the present utility model. The enlarged diameter portion 2cB is different from the enlarged diameter portion 2cA in having the rib 2h surrounding the entire periphery of the plate member 30A, and is identical to the other aspects. The rib 2h is a protrusion located at the same position as the plate member 30A in the left-right direction or preferably extending outward therefrom. The rib 2h can suppress rattling of the plate member 30A, and can suppress the object from being caught by the edge of the plate member 30A. The rib 2h can alleviate the impact of placing the power tool on a work table or the like with the plate member 30A at the lower side, and can protect the plate member 30A from external force.

Fig. 20 relates to embodiment 4 of the present utility model. The expanded diameter portion 2cC is different from the expanded diameter portion 2cA in having four ribs 2i partially surrounding the plate member 30A, and is identical to the other. The rib portions 2i are provided with respect to the four corner portions of the plate member 30A, respectively. The rib 2i is a protrusion located at the same position as the plate member 30A in the left-right direction or preferably extending outward therefrom. The rib 2i can suppress rattling of the plate member 30A and can suppress the object from being caught by the edge of the plate member 30A. The rib 2i can alleviate the impact of placing the power tool on a work table or the like with the plate member 30A at the lower side, and can protect the plate member 30A from external force.

Fig. 21 relates to embodiment 5 of the present utility model. The enlarged diameter portion 2cD is different from the enlarged diameter portion 2cA in having four ribs 2j partially surrounding the plate member 30A, and is identical to the other. The ribs 2j are provided with respect to the four sides of the plate member 30A, respectively. The rib 2j is a protrusion located at the same position as the plate member 30A in the left-right direction or preferably extending outward from the same. The rib 2j can prevent the plate member 30A from rocking, and can prevent an object from being caught by the edge of the plate member 30A. The rib 2j can alleviate the impact of placing the power tool on a work table or the like with the plate member 30A at the lower side, and can protect the plate member 30A from external force.

Fig. 22 relates to embodiment 6 of the present utility model. The enlarged diameter portion 2cE is different from the enlarged diameter portion 2cA in having two rib portions 2k partially surrounding the plate member 30A, and is identical to the other. The rib 2k is provided in relation to the front upper corner and the rear lower corner of the plate member 30A. The rib 2k is a protrusion located at the same position as the plate member 30A in the left-right direction or preferably extending outward therefrom. The rib 2k can suppress rattling of the plate member 30A and can suppress the object from being caught by the edge of the plate member 30A. The rib 2k can alleviate the impact of placing the power tool on a work table or the like with the plate member 30A at the lower side, and can protect the plate member 30A from external force.

Fig. 23 and 24 relate to embodiment 7 of the present utility model. Is an external view of the vicinity of the enlarged diameter portion 2 cF. The enlarged diameter portion 2cF is different from the enlarged diameter portion 2cA in the recess portion (concave portion) 2m (see fig. 24) having the fitting plate member 30A, and is identical to the other. The concave portion 2m is a portion recessed inward of the outermost surface of the expanded 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 includes an elastic body 2p. The elastic body 2p is a protruding portion located above the plate member 30A in the left-right direction and extending outside the plate member 30A. The elastic body 2p can alleviate the impact of placing the power tool on a work table or the like with the plate member 30A at the lower side, and can protect the plate member 30A from external force.

Fig. 25 (a) relates to embodiment 8 of the present utility model. The plate member 30B is not attached to the enlarged diameter portion 2cG by the screw 15 unlike the plate member 30A. The plate member 30B has hooking portions 33A in the front and rear sides, respectively. The diameter-enlarged portion 2cG has a hooked portion corresponding to the hooking portion 33A. Fig. 25 (B) relates to embodiment 9 of the present utility model. The plate member 30C has hooking portions 33B in place of the hooking portions 33A of the plate member 30B, respectively, in the upper and lower sides. The diameter-enlarged portion 2cH has a hooked portion corresponding to the hooking portion 33A.

Fig. 26 (a) relates to embodiment 10 of the present utility model. The plate member 30D is attached to the side surface of the enlarged diameter portion 2cI by the engagement of the front hook portion 33A and the adhesive force of the double-sided tape 37B. Fig. 26 (B) relates to embodiment 11 of the present utility model. The plate member 30E has no hooking portion, and is attached to the side surface of the enlarged diameter portion 2cJ by the adhesive force of the double-sided tape 37B at the front and rear positions. The double-sided tape 37B may also be replaced with a non-adhesive.

Fig. 27 (a) relates to embodiment 12 of the present utility model. The plate member 30F is fitted to the side surface of the enlarged diameter portion 2cK by the tightening force of the front and rear screws 15. Fig. 27 (B) relates to embodiment 13 of the present utility model. In this embodiment, the screw 15 is added to the structure (a) of fig. 25. The plate member 30G is attached to the side surface of the enlarged diameter portion 2cL by the locking force of the front and rear hook portions 33A and the tightening force of the screw 15. Fig. 28 is a left side view of the power tool according to embodiment 14 of the present utility model in the vicinity of the enlarged diameter portion 2 cM. In this embodiment, the screw 15 is added to the structure of 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 tightening force of the screw 15.

Fig. 29 relates to embodiment 15 of the present utility model. The plate member 301 is mounted on 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 utility model. The plate member 30J is attached to the enlarged diameter portion 2cO by a slider 2n in a one-touch detachable manner. By sliding the slider 2n forward (in the direction of arrow I), the locking of the slider 2n can be released, and the plate member 30J can be removed. The hooking portion 33A may be provided on the front portion of the plate member 30J as in fig. 26 (a).

Fig. 31 shows an example in which the head holder 17 is provided in the plate member 30A in the configuration of fig. 18. The mounting of the head holder 17 to the plate member 30A can be performed by using the permanent magnet 37 in the same manner as in the example of fig. 10 to 12 (B). The head holder 17 can be rotated arbitrarily as in fig. 12 (a) and 12 (B). Fig. 32 and 33 show an example in which a permanent magnet 37C is provided on the back side of the plate member 30A and the head 18 and the screw 18A are held by the plate member 30A in the structure of fig. 18.

Fig. 34 relates to embodiment 17 of the present utility model. The plate member 30K displays a scale 39 at the upper end portion. The graduations 39 can be used, for example, to measure the length or diameter of a screw or fitting, with improved workability. Fig. 35 relates to embodiment 18 of the present utility model. The surface of the plate member 30L is made of a material that can be easily rubbed off by a dry cloth or the like after writing, drawing or the like with a whiteboard pen or the like. The entire plate member 30L may be made of such a material, or the surface of the plate member 30L may be made of such a material by coating. Thus, the worker can write a desired letter or drawing on the plate member 30L, and can bring about a sense of originality (can be easily distinguished).

Fig. 36 relates to embodiment 19 of the present utility model. The plate member 30M has a lamp 39A and a switch 39B. The lamp 39A is directed obliquely upward in the front to illuminate the work area. By illuminating the work area with the lamp 39A, workability improves. The switch 39B is an operation unit for switching on and off the lamp 39A. The power source of the lamp 39A may be obtained from the battery pack 20 mounted on the battery pack mounting portion 2c, or may be obtained from a battery, not shown, mounted on the plate member 30M.

Fig. 37 relates to embodiment 20 of the present utility model. The plate member 30N has a lamp 39C and a switch 39D. The lamp 39C is of a surface light emitting type, and largely illuminates the side of the plate member 30N. The work area can be illuminated by the lamp 39C, which is convenient. The switch 39D is an operation unit for switching on and off the lamp 39C. The power source of the lamp 39C may be obtained from the battery pack 20 mounted on the battery pack mounting portion 2C, or may be obtained from a battery, not shown, mounted on the plate member 30N.

The additional functions shown in fig. 31 to 37 are added to the structures shown in fig. 18 and 19, and the structures shown in fig. 16, 17, and 20 to 30 may be applied as they are or with necessary modifications.

Fig. 38 to 39 relate to embodiment 21 of the present utility model. The plate member 30P is U-shaped, is provided across the left and right side surfaces and the back surface of the expanded diameter portion 2cP, and is fixed to the left and right side surfaces of the expanded diameter portion 2cP by screws 15. Ribs 2q are provided on both side surfaces of the enlarged diameter portion 2 cP. The rib 2q supports the upper edge portion, the lower edge portion, and the front edge portion of the plate member 30P, and suppresses rattling or rotation of the plate member 30P. The rib 2q is a protrusion located at the same position as the plate member 30P in the lateral direction or preferably protruding further outward than the plate member. Fig. 40 and 41 relate to embodiment 22 of the present utility model. A U-shaped hooking portion 39E is provided at the rear portion of the plate member 30Q. A shackle 39F is provided in the U-hook portion 39E. In the structures of fig. 38 to 41, additional functions as shown in fig. 31 to 37 may be added. Further, the U-shaped plate member may be provided across the left and right sides and the front surface of the enlarged diameter portion 2 cP. In this case, the battery pack 20 is assembled in the battery pack assembly portion 2c of the power tool 1, and then the U-shaped plate member is assembled. Accordingly, the U-shaped plate is disposed so as to cover the battery pack 20 at the battery pack mounting portion 2c of the power tool 1, and therefore, the battery pack 20 can be prevented from falling off, and dust and water resistance can be improved.

Fig. 42 relates to embodiment 23 of the present utility model. The plate member 30R has a shape protruding from the side surface of the enlarged diameter portion 2 cQ. Specifically, the plate member 30R extends downward from the lower edge 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 is shaped so as not to overlap the protruding portion 23 and the latch operating portion 24 of the battery pack 20.

Fig. 43 relates to embodiment 24 of the present utility model. The battery pack 20A mounted on the expanded diameter portion 2cR is of a single latch type, and has a latch operating portion 24A on the front surface. The plate member 30S attached to the side surface of the enlarged diameter portion 2cR extends forward of the front edge portion of the side surface of the enlarged diameter portion 2 cR. The battery pack 20A does not have the latch operation portion 24A on the left and right side surfaces, and therefore, even if the plate member 30S extends forward of the front edge portion of the side surface of the enlarged diameter portion 2cR, the latch operation portion 24A is not interfered with.

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

While the present utility model has been described by way of examples of embodiments, those skilled in the art will understand that various modifications may be made to the components and processes of the embodiments within the scope of the claims. The modification will be described later.

The power tool of the present utility model is not limited to the impact driver or the board starter exemplified in the embodiment, and may be of another type having an expanded diameter portion at an end portion of the handle portion, or may be a string-type that is operated by supplying power from an external ac power source. Additional functions of any of the various embodiments may be combined with additional functions of the plate member. For example, the scale 39 may be provided on the plate member 30 as shown in fig. 34, and writing or erasing with a marker is easy as shown in fig. 35, the head holder 17 may be attached to or detached from the head holder as shown in fig. 31, or the head 18 and the screw 18A may be attached as shown in fig. 32. The plate member may have a light accumulating function. Thus, visibility in darkness can be improved. Or writing characters on the plate member with a marker pen having light-accumulating property.

Claims (14)

1. A power tool, comprising:

an output unit;

a driving unit that drives the output unit; a kind of electronic device with high-pressure air-conditioning system

A housing having: a main body portion for accommodating the driving portion; a holding part for an operator to hold; and an expanded diameter portion provided at an end portion of the grip portion and protruding in a radial direction of the grip portion,

a plate member is fitted along the outermost surface of the expanded portion.

2. The power tool of claim 1, wherein:

a convex part is arranged on the diameter-expanding part,

in a state where the plate member is assembled, the convex portion penetrates a convex portion insertion hole provided in the plate member, and forms a part of the outermost surface.

3. The power tool of claim 1, wherein:

the plate member has: a main face having an additional function; and a mounting portion mounted to the expanded diameter portion.

4. A power tool according to claim 3, wherein:

the mounting part is provided with a hooking part which is hooked on the diameter expanding part,

the diameter-expanding portion has a hooked portion for hooking the hooking portion.

5. A power tool according to claim 3, wherein:

the mounting portion has a hole portion through which a screw passes, and the diameter-enlarged portion has a screw hole portion which faces the hole portion in a state in which the plate member is mounted, and is screwed by the screw.

6. The power tool of claim 5, wherein:

the hook is mounted on the diameter-expanding part and hooked by an external component,

the hook is attached to the enlarged diameter portion via the screw hole portion.

7. The power tool of claim 6, wherein:

the plate member and the hook can be simultaneously assembled by the common screw via the screw hole portion.

8. The power tool of claim 1, wherein:

the diameter-enlarged portion has a protruding portion protruding in a thickness direction thereof than the plate member, on an outer side than an outer peripheral portion of the plate member; or a recessed portion recessed inward from an outermost surface of the expanded diameter portion, at least a part of the plate member being disposed.

9. The power tool of claim 8, wherein:

an elastic body is arranged at the diameter-expanding part,

at least a portion of the rim of the protrusion or the recess includes the elastomer.

10. The power tool of claim 1, wherein:

the plate member has a magnetic body.

11. The power tool of claim 1, wherein:

the plate member is fitted along or closely to the outer surface of the expanded diameter portion.

12. The power tool of claim 1, wherein:

the expanded diameter portion has a battery pack fitting portion for detachably fitting a battery pack for driving the output portion.

13. The power tool according to any one of claims 3 to 7, characterized by having:

a first face portion extending in a vertical direction and provided with the mounting portion; a kind of electronic device with high-pressure air-conditioning system

A second face portion extending in a direction intersecting the first face portion and provided with the main face portion,

in a state where the plate member is attached, the first face portion and the second face portion are flush with the outermost surface.

14. The power tool of claim 13, wherein:

in a state where the plate member is assembled, the second surface portion extends inward toward the vertical upper side.