JP2019209460A - Electric tool and electric tool with battery pack - Google Patents

Abstract

To provide an electric tool including a wireless communication function that is less affected by noise, and to provide the electric tool with a battery pack.SOLUTION: An electric tool 1 includes: a motor 10; a transmission mechanism 20 which transmits output of the motor 10 to a tool 11; an antenna 30; a wireless communication part 40 which performs at least one of transmission and reception of working information by wireless communication using the antenna 30; and a housing 50. The housing 50 includes: a first body part 51 which houses the motor 10 and the transmission mechanism 20; a second body part 52 having a battery pack attachment part 60 to which a battery pack 61 may be attached; and a grip part 53 which connects the first body part 51 to the second body part 52. The antenna 30 is disposed in at least one of the grip part 53 and the second body part 52.SELECTED DRAWING: Figure 1

Description

  The present disclosure generally relates to a power tool and a power tool with a battery pack, and more particularly to a power tool capable of wireless communication and a power tool with a battery pack.

  2. Description of the Related Art Conventionally, various electric tools such as an impact wrench and a drill driver are provided with a wireless communication function for transmitting work information to the outside by wireless communication.

  For example, Patent Document 1 discloses a motor, a drive transmission unit that transmits the rotation of the motor to a tool, a motor control unit that controls the rotation of the motor, and a trigger switch that instructs the motor control unit to control the motor. A power tool provided inside is described. The power tool further includes a wireless communication device having an antenna unit that wirelessly communicates work information related to work contents with the outside.

JP 2011-67908 A

  However, in the electric power tool described in Patent Document 1, the antenna unit is arranged so as to be positioned above the trigger switch in a predetermined storage state. For this reason, it is difficult to ensure a sufficient distance between the antenna unit and the motor. For example, wireless communication by a wireless communication device may be affected by noise generated from the motor.

  The objective of this indication is providing the electric tool provided with the wireless communication function which is hard to receive to the influence of noise, and an electric tool with a battery pack.

  An electric tool according to an aspect of the present disclosure includes a motor, a transmission mechanism, an antenna, a wireless communication unit, and a housing. The transmission mechanism transmits the output of the motor to a tool. The wireless communication unit performs at least one of transmission and reception of work information by wireless communication using the antenna. The housing includes a first main body portion that houses the motor and the transmission mechanism, a second main body portion that has a battery pack mounting portion that allows a battery pack to be mounted, the first main body portion, and the second main body portion. And a grip portion for connecting the two. The antenna is disposed on at least one of the grip portion and the second main body portion.

  An electric tool with a battery pack according to an aspect of the present disclosure includes the electric tool and the battery pack attached to the battery pack attachment portion.

  According to the present disclosure, it is possible to obtain an electric tool having a wireless communication function that is not easily affected by noise and an electric tool with a battery pack.

FIG. 1 is a schematic diagram illustrating an electric tool according to Embodiment 1 of the present disclosure. FIG. 2 is a schematic diagram illustrating an electric tool with a battery pack according to Embodiment 1 of the present disclosure. FIG. 3 is a perspective view showing the electric tool with a battery pack of the above. FIG. 4 is a schematic view in which the grip portion of the electric tool with a battery pack is broken. FIG. 5 is a schematic diagram illustrating an electric tool with a battery pack according to Embodiment 2 of the present disclosure. FIG. 6 is a schematic diagram illustrating an electric tool with a battery pack according to Embodiment 3 of the present disclosure. FIG. 7 is a schematic diagram illustrating an electric tool with a battery pack according to Embodiment 4 of the present disclosure. FIG. 8 is a schematic diagram illustrating an electric tool with a battery pack according to Embodiment 5 of the present disclosure.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. However, the embodiment described below is only one of various embodiments of the present disclosure. The following embodiment can be variously modified according to the design or the like as long as the object of the present disclosure can be achieved. 1 to 4 described in the following embodiments are schematic diagrams, and the sizes and ratios of the components in FIGS. 1 to 4 are not necessarily the actual sizes and dimensional ratios. It does not necessarily represent.

  Below, the up-and-down and front-and-rear directions of an electric tool are prescribed | regulated and demonstrated using the up-and-down and front-and-back arrows shown in FIGS. These arrows are merely provided for the purpose of assisting the explanation, and are not accompanied by an entity. Also, these directions are not intended to limit the direction of use of the power tool.

(Embodiment 1)
(1) Outline As shown in FIGS. 1 and 2, the electric power tool 1 according to the present embodiment is an apparatus that operates the motor 10 with the electric energy of the battery pack 61 and drives the tool 11 with the output of the motor 10. .

  In this embodiment, the battery pack 61 is detachably attached to the electric power tool 1. The battery pack 61 and the electric tool 1 constitute an electric tool 100 with a battery pack. In other words, the battery pack-equipped electric tool 100 according to the present embodiment includes the electric tool 1 and the battery pack 61. A tool 11 is detachably attached to the electric tool 1. That is, in the present embodiment, the battery pack 61 and the tool 11 are both removable from the electric tool 1 and are not included in the components of the electric tool 1.

  As shown in FIG. 1, the electric tool 1 according to the present embodiment includes a motor 10, a transmission mechanism 20, an antenna 30, a wireless communication unit 40, and a housing 50. In the present embodiment, as an example, the power tool 1 is an impact driver.

  The transmission mechanism 20 transmits the output of the motor 10 to the tool 11. In the present embodiment, as an example, the tool 11 is a driver.

  The wireless communication unit 40 performs at least one of transmission and reception of work information by wireless communication using the antenna 30. The work information is, for example, information regarding work contents when working with the electric tool 1.

  The housing 50 includes a first main body portion 51, a second main body portion 52, and a grip portion 53. The first main body 51 accommodates the motor 10 and the transmission mechanism 20. The 2nd main-body part 52 has the battery pack attaching part 60 which can attach the battery pack 61. FIG. The grip part 53 connects the first main body part 51 and the second main body part 52.

  The antenna 30 is disposed on at least one of the grip part 53 and the second main body part 52. That is, the antenna 30 is accommodated in a region other than the first main body 51 in the housing 50.

  As described above, the motor 10 is disposed in the first main body 51 in the housing 50, but the antenna 30 is disposed in at least one of the grip 53 and the second main body 52 in the housing 50. . Therefore, it is easier to secure a distance between the antenna 30 and the motor 10 than when both the antenna 30 and the motor 10 are arranged in the first main body 51. Therefore, even when noise is generated from the motor 10, wireless communication using the antenna 30 can be made less susceptible to noise. As a result, for example, communication errors are less likely to occur.

(2) Configuration Hereinafter, a detailed configuration of the electric power tool 1 of the present embodiment will be described with reference to FIGS.

  The electric tool 1 includes a motor 10, a transmission mechanism 20, an antenna 30, a wireless communication unit 40, and a housing 50. As shown in FIG. 1, the housing 50 accommodates the motor 10, the transmission mechanism 20, the antenna 30, and the wireless communication unit 40.

  The housing 50 includes a first main body portion 51, a second main body portion 52, and a grip portion 53. The first main body 51 accommodates the motor 10 and the transmission mechanism 20. The 2nd main-body part 52 has the battery pack attaching part 60 which can attach the battery pack 61. FIG. The grip part 53 connects the first main body part 51 and the second main body part 52.

  The second main body portion 52 has a battery pack attachment portion 60. In the present embodiment, as shown in FIGS. 1 to 4, the battery pack mounting portion 60 is disposed at the lower end portion of the second main body portion 52.

  The grip portion 53 is a portion that is gripped by a hand when an operator performs an operation. The operator can hold the power tool 1 by gripping the grip portion 53.

  In the present embodiment, in the housing 50, the first main body portion 51, the grip portion 53, and the second main body portion 52 are integrally formed.

  In this embodiment, the area of the cross section of the grip part 53 orthogonal to the longitudinal direction of the grip part 53 is smaller than the area of the cross section of the second main body part 52 orthogonal to the longitudinal direction. That is, the area of the cross section of the grip portion 53 orthogonal to the vertical direction is smaller than the area of the cross section of the second main body portion 52 orthogonal to the vertical direction. In other words, as shown in FIG. 3, the grip part 53 is narrower than the second main body part 52, and the second main body part 52 has a shape protruding from the outer peripheral surface of the grip part 53 in a plane perpendicular to the vertical direction. Have. Since the grip part 53 has a narrower shape than the second main body part 52, the grip part 53 can be easily gripped when the operator holds the power tool 1 by gripping the grip part 53 by hand.

  In the present embodiment, the grip portion 53 has a shape that is elongated in the vertical direction so that the vertical direction is the longitudinal direction. Since the grip portion 53 has such a shape, the operator can easily grip the grip portion 53.

  The motor 10 is a drive unit that drives the transmission mechanism 20 and is disposed in the first main body 51. In the present embodiment, as shown in FIG. 1, the motor 10 is disposed behind the center of the first main body 51 in the front-rear direction. The motor 10 is controlled by the control unit. The control unit includes, for example, a microcomputer having a CPU (Central Processing Unit) and a memory, and the CPU controls the operation of the motor 10 by executing a program stored in the memory.

  The transmission mechanism 20 is disposed in the first main body 51 and transmits the output of the motor 10 to the tool 11. In the present embodiment, as described above, the power tool 1 is an impact driver, and the tool 11 is a driver bit. In the present embodiment, as shown in FIG. 1, the transmission mechanism 20 is disposed in front of the center of the first main body 51 in the front-rear direction. The transmission mechanism 20 is connected to the motor 10 disposed behind the first main body 51.

  In this embodiment, as shown in FIG. 1, the tool 11 is attached to the chuck 12. The chuck 12 is provided at the front end of the first main body 51. The chuck 12 is provided in front of the transmission mechanism 20 in the first main body 51. The tool 11 is detachably attached to the chuck 12. In the present embodiment, the chuck 12 is made of metal. The chuck 12 is driven using the motor 10 as a drive source. For example, in this embodiment, the rotational driving force of the motor 10 is transmitted to the chuck 12 via the transmission mechanism 20, and the chuck 12 rotates.

  In this embodiment, the tool 11 is mounted on the electric power tool 1 so as to face the work target. That is, the tool 11 is attached to the front end portion of the first main body portion 51. By arranging the work target in front of the electric power tool 1, the work can be performed on the work target. As an example, when fixing a metal plate to a construction surface with a screw, the electric power tool 1 performs a screw tightening operation in a posture facing a metal plate as a work object positioned in front of the electric power tool 1.

  In the present embodiment, the transmission mechanism 20 includes a speed reduction mechanism 21 connected to the motor 10 and an impact mechanism 22 connected to the output shaft of the speed reduction mechanism 21. The driving force of the motor 10 is transmitted to the chuck 12 through the speed reduction mechanism 21 and the striking mechanism 22. The driving force is transmitted to the chuck 12 until a predetermined load is applied to the chuck 12. When a load exceeding a predetermined load is applied to the chuck 12, a striking motion is performed in the striking mechanism 22, and a driving force is transmitted to the chuck 12 by the striking motion.

  In the present embodiment, as illustrated in FIG. 1, the electric power tool 1 further includes an operation unit 70 disposed on the grip unit 53. The operation unit 70 is disposed above the center in the longitudinal direction of the grip unit 53. Furthermore, the operation unit 70 is disposed so as to be exposed from the front surface of the grip unit 53. Since the operation unit 70 is arranged in the grip unit 53, the operator can easily operate the operation unit 70 when the operator uses the power tool 1 while holding the grip unit 53 by hand.

  The operation unit 70 is a switch operator. The switch is electrically connected to a control unit that controls the motor 10. As an example, the switch is a push button switch, and outputs an operation signal corresponding to the operation of the operation unit 70. More specifically, the switch is a multistage switch or a non-stage switch (variable resistor) in which an operation signal changes according to an operation amount (push-in amount) of the operation unit 70. The control unit controls the motor 10 based on an operation signal from the switch.

  The wireless communication unit 40 is a communication module capable of wireless communication, such as Wi-Fi (registered trademark). “Wireless communication” in the present disclosure means communication using radio waves as a medium. The wireless communication unit 40 may perform wireless communication directly with the counterpart terminal, or may perform wireless communication indirectly via a repeater or the like. The wireless communication unit 40 is connected to the antenna 30 via the antenna line 31. The wireless communication unit 40 performs at least one of transmission and reception of work information by wireless communication using the antenna 30. “Work information” in the present disclosure is information related to work using the electric power tool 1, for example, information related to work contents when working using the electric power tool 1. When the electric tool 1 is an impact driver as in the present embodiment, the work information is work information related to the work content of the screw tightening work such as, for example, the tightening torque, the number of screw tightening, the work time, and the battery remaining amount. . For example, the wireless communication unit 40 can transmit work information to an external management device via the antenna 30. Further, the wireless communication unit 40 can receive work information from an external instruction device via the antenna 30.

  In the present embodiment, as illustrated in FIG. 4, the wireless communication unit 40 includes a substrate 41. The substrate 41 is a printed wiring board. Various electronic components including a semiconductor device are mounted on the substrate 41. In the present embodiment, the wireless communication unit 40 has a structure in which the substrate 41 is covered with a buffer material. When the wireless communication unit 40 has such a structure, an impact caused by vibration during operation can be reduced by the buffer material.

  In the present embodiment, as illustrated in FIG. 1, the wireless communication unit 40 is disposed in the grip unit 53. Therefore, it is easier to secure a distance between the wireless communication unit 40 and the motor 10 than when the wireless communication unit 40 is disposed in the first main body 51. Therefore, even when noise is generated from the motor 10, wireless communication can be made less susceptible to noise. Furthermore, in this embodiment, as shown in FIG.1 and FIG.4, the radio | wireless communication part 40 is arrange | positioned in the grip part 53 below the center of an up-down direction. In other words, the wireless communication unit 40 is arranged in a region farther from the first main body 51 out of two regions obtained by equally dividing the grip unit 53 in the vertical direction. Therefore, it is easier to secure the distance between the wireless communication unit 40 and the motor 10.

  In the present embodiment, as shown in FIGS. 1 and 4, the wireless communication unit 40 is arranged such that one surface in the thickness direction of the substrate 41 is substantially parallel to the front-rear direction of the electric power tool 1. The wireless communication unit 40 is arranged so that the longitudinal direction of the substrate 41 is substantially parallel to the vertical direction of the electric power tool 1.

  The antenna 30 is connected to the wireless communication unit 40 via the antenna line 31. In the present embodiment, as illustrated in FIG. 4, the antenna 30 is disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40. In this case, since the distance between the antenna 30 and the substrate 41 of the wireless communication unit 40 becomes short, wireless communication can be made less susceptible to noise.

  In the present embodiment, as shown in FIG. 4, the substrate 41 has a rectangular shape, and the antenna 30 is closer to one of the four corners of the substrate 41 than the center in the longitudinal direction and the short direction of the substrate 41. Is arranged. However, the antenna 30 only needs to be disposed on one surface in the thickness direction on the substrate 41, and the position of the antenna 30 on the substrate 41 is not particularly limited. Further, the shape of the substrate 41 is not limited to a rectangular shape. As will be described later, by appropriately changing the position of the antenna 30 disposed on the substrate 41 of the wireless communication unit 40, the antenna 30 is disposed at a desired position of the grip part 53 and the second main body part 52. Can do.

  The antenna 30 is disposed on at least one of the grip part 53 and the second main body part 52. That is, the motor 10 is disposed in the first main body 51, while the antenna 30 is disposed in a location other than the first main body 51 of the housing 50. Therefore, it is easier to secure a distance between the antenna 30 and the motor 10 than when both the antenna 30 and the motor 10 are arranged in the first main body 51. Therefore, even when noise is generated from the motor 10, wireless communication using the antenna 30 can be made less susceptible to noise. As a result, for example, communication errors are less likely to occur. Furthermore, since the antenna 30 is hardly affected by noise from the motor 10, the antenna 30 can be downsized. By reducing the size of the antenna 30, the antenna 30 can be arranged in a small gap in the housing 50 when the antenna 30 and the wireless communication unit 40 are arranged at positions separated from each other. Can increase the degree of freedom. That is, for example, when the antenna 30 is not disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40, the antenna 30 is placed at a desired position in at least one of the grip unit 53 and the second main body unit 52. Can be arranged.

  In the present embodiment, as shown in FIGS. 1 and 4, the antenna 30 is provided between the operation portion 70 and the battery pack mounting portion 60 in the longitudinal direction of the grip portion 53 among the grip portion 53 and the second main body portion 52. Is located in the area. That is, the antenna 30 is disposed below the operation unit 70 in the grip unit 53 and the second main body unit 52. Therefore, it is easier to secure the distance between the antenna 30 and the motor 10, and even when noise is generated from the motor 10, wireless communication using the antenna 30 can be made less susceptible to noise.

  In this embodiment, as shown in FIGS. 1 and 4, the antenna 30 is disposed in the grip portion 53 and is disposed below the center of the grip portion 53 in the longitudinal direction. That is, the antenna 30 is disposed in a region farther from the first main body 51 out of two regions obtained by equally dividing the grip portion 53 in the vertical direction. Therefore, it is easier to secure a distance between the antenna 30 and the motor 10 disposed in the first main body 51, and even when noise is generated from the motor 10, wireless communication using the antenna 30 is affected by the noise. It can be made difficult to receive.

  Furthermore, in the present embodiment, as shown in FIGS. 1 and 4, the antenna 30 is disposed behind the center of the grip portion 53 in the short direction. That is, the antenna 30 is disposed in a region farther from the tool 11 out of two regions obtained by dividing the grip portion 53 into two equal parts in the front-rear direction. Therefore, when using the electric tool 1 with the tool 11 directed toward the work target, a distance between the work target and the antenna 30 can be ensured. When the distance between the work target and the antenna 30 is short, fading occurs due to reflection of radio waves or the like due to the influence of the work target during wireless communication, and the communication status tends to become unstable. However, since the distance between the work target and the antenna 30 is secured, the communication status is easily stabilized.

  As described above, the operation unit 70 is disposed above the center of the grip unit 53 in the longitudinal direction so as to be exposed from the front surface of the grip unit 53. Therefore, when the worker holds the electric power tool 1 by gripping the grip portion 53 with his / her hand, the worker's hand is likely to be positioned above the grip portion 53. Further, the front end portion of the grip portion 53 is more easily covered by the operator's hand than the rear end portion of the grip portion 53. However, in the present embodiment, the antenna 30 is disposed below the center in the longitudinal direction of the grip portion 53 and behind the center in the short direction of the grip portion 53. Therefore, compared with the case where the antenna 30 is disposed above the center in the longitudinal direction of the grip portion 53 or ahead of the center in the short direction of the grip portion 53, the radio wave transmitted or received by the antenna 30 is Not easily affected by the hands of workers.

  As described above, in the present embodiment, the antenna 30 is disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40. Therefore, the antenna 30 is arranged at a desired position in the grip part 53 and the second main body part 52 by arranging the wireless communication part 40 at an appropriate place in the grip part 53 and the second main body part 52. Can do. Further, the antenna 30 may be arranged at a desired position among the grip part 53 and the second main body part 52 by appropriately changing the position of the antenna 30 arranged on the substrate 41 of the wireless communication unit 40.

(3) Electric tool 100 with battery pack
As shown in FIG. 2, the power tool 100 with a battery pack includes the power tool 1 and a battery pack 61. The battery pack 61 is detachably attached to the battery pack mounting portion 60. For example, the battery pack 61 can be attached to the battery pack attachment portion 60 by hooking a plurality of hooking claws provided on the battery pack 61 and a plurality of engaging portions provided on the battery pack attachment portion 60. . When removing the battery pack 61 from the battery pack mounting portion 60, for example, the battery pack 61 can be removed by sliding while pressing a button provided on the battery pack 61. However, the method for attaching and detaching the battery pack 61 is not limited to this, and any method may be used as long as the method can attach and detach the battery pack 61.

  Battery pack 61 includes a rechargeable secondary battery. The battery pack 61 may include only one secondary battery cell or may include a plurality of secondary battery cells. Further, only one type of battery pack 61 may be attached to the battery pack attachment portion 60, or a plurality of types of battery packs may be attachable. For example, a plurality of types of battery packs having different rated voltages and battery capacities may be attached.

(4) Modified Examples Hereinafter, modified examples of the power tool 1 and the power tool 100 with the battery pack will be described. The modifications described below can be applied in appropriate combinations.

  The type of the electric power tool 1 is not limited to the impact driver, and may be an electric power tool such as an impact wrench, a drill driver, a hammer drill, a band saw, a power cutter, a sander, and a disc grinder.

  The kind of tool 11 is not limited to a driver, For example, bits, such as a drill and a hole saw, may be used. The type of the tool 11 is appropriately selected according to the type of the electric tool 1.

  In the housing 50, the first main body portion 51, the grip portion 53, and the second main body portion 52 may not be integrally formed. For example, the first main body portion 51, the grip portion 53, and the second main body portion 52 may be formed as separate members and connected by bonding or the like to constitute the housing 50.

  The battery pack attachment portion 60 may be disposed at a place other than the lower end portion of the second main body portion 52. For example, the battery pack mounting portion 60 may be disposed at the rear end portion of the second main body portion 52 or may be disposed at the front end portion. The battery pack attachment portion 60 may be disposed anywhere on the second main body portion 52 as long as the battery pack 61 can be attached.

  The area of the cross section of the grip part 53 orthogonal to the longitudinal direction of the grip part 53 is preferably smaller than the area of the cross section of the second main body part 52 orthogonal to the longitudinal direction, but is not limited thereto. That is, the area of the cross section of the grip part 53 orthogonal to the vertical direction is preferably smaller than the area of the cross section of the second main body part 52 orthogonal to the vertical direction, but is not limited thereto. For example, the grip portion 53 may be as thick as the second main body portion 52. Further, the thickness of the grip part 53 may be larger than the thickness of the second main body part 52.

  The grip portion 53 preferably has an elongated shape in the vertical direction, but is not limited thereto. The grip part 53 may be formed with a thickness that is approximately the same as that of the second main body part 52, for example, and a handle for an operator to grip the grip part 53 may be provided. The shape of the grip part 53 is not particularly limited as long as the operator can hold the electric power tool 1 by holding it with a hand.

  The motor 10 may be disposed at a location other than the location behind the center of the first main body 51 in the front-rear direction. The motor 10 may be arrange | positioned at the center part in the front-back direction of the electric tool 1, for example. Moreover, the transmission mechanism 20 may be arrange | positioned in the 1st main-body part 51 other than the location ahead rather than the center of the front-back direction. If the motor 10 and the transmission mechanism 20 are connected and the driving force of the motor 10 can be transmitted to the tool 11 via the transmission mechanism 20, the motor 10 and the transmission mechanism 20 are located at any location on the first main body 51. It may be arranged.

  The electric power tool 1 may not have the chuck 12 depending on the type. For example, when the electric tool 1 is a sander, a disc grinder, or the like, the electric tool 1 may not be provided with the chuck 12. Further, the chuck 12 may not be made of metal and is not particularly limited as long as it has a strength capable of holding the tool 11.

  Although it is preferable that the electric tool 1 further includes an operation unit 70 disposed in the grip unit 53, the power tool 1 is not limited thereto. For example, the operation unit 70 may be disposed in the first main body 51 or may be disposed in the second main body 52. The operation unit 70 may be disposed below the center of the grip portion 53 in the longitudinal direction. In addition, the operation unit 70 may be disposed at a central portion in the vertical direction of the grip unit 53. The operation unit 70 may be disposed behind the center of the grip unit 53 in the short direction. The position of the operation unit 70 is not particularly limited as long as the operator can operate the operation unit 70.

  The operation unit 70 is not limited to a push button switch, and may be a slide switch, a toggle switch, a rocker switch, or the like.

  The power tool 1 may include one wireless communication unit 40 or may include a plurality of wireless communication units 40. Moreover, the electric tool 1 may be provided with one antenna, and may be provided with a plurality of antennas.

  The battery pack 61 may not be removable from the battery pack mounting portion 60. That is, the battery pack 61 may not be removable from the electric tool 1.

  In the present embodiment, the wireless communication unit 40 is a communication module capable of wireless communication such as Wi-Fi (registered trademark), but is not limited thereto, and can perform communication using radio waves as a medium. Any communication module may be used. For example, it is only necessary that wireless communication can be performed using a wireless system that does not require a license. The wireless system without a license is, for example, Bluetooth (registered trademark), specific low power wireless, or the like.

  The antenna 30 is preferably disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40, but is not limited thereto. As will be described later in Embodiments 4 and 5, the antenna 30 may be disposed at a position away from the wireless communication unit 40 as long as it is connected to the wireless communication unit 40 via the antenna line 31.

  That is, the position of the wireless communication unit 40 is not particularly limited as long as the antenna 30 is disposed on at least one of the grip part 53 and the second main body part 52. The wireless communication unit 40 may be disposed in the first main body portion 51, may be disposed in the second main body portion 52, or may be disposed in the grip portion 53. However, from the viewpoint of securing the distance between the wireless communication unit 40 and the motor 10 and making the wireless communication less susceptible to noise, the wireless communication unit 40 includes at least one of the grip unit 53 and the second main body unit 52. It is preferable to arrange on one side.

  In the present embodiment, the wireless communication unit 40 is disposed below the middle point in the vertical direction of the grip unit 53, but is not limited thereto. The wireless communication unit 40 may be disposed above the middle point in the vertical direction of the grip unit 53, or may be disposed in the vicinity of the middle point, that is, in the central portion in the vertical direction of the grip unit 53.

  In the present embodiment, the wireless communication unit 40 is disposed so that one surface in the thickness direction of the substrate 41 is substantially parallel to the front-rear direction of the power tool 1, but is not limited thereto. For example, the wireless communication unit 40 may be arranged so that one surface in the thickness direction of the substrate 41 intersects with the front-rear direction of the power tool 1, and one surface in the thickness direction of the substrate 41 is the vertical direction of the power tool 1. It may be arranged so as to intersect. The wireless communication unit 40 may be arranged such that one surface in the thickness direction of the substrate 41 is substantially parallel to the front-rear direction of the power tool 1.

  Furthermore, in the present embodiment, the wireless communication unit 40 is arranged so that the longitudinal direction of the substrate 41 is substantially parallel to the vertical direction of the electric power tool 1, but is not limited thereto. For example, the wireless communication unit 40 may be arranged such that the short side direction of the substrate 41 is substantially parallel to the vertical direction of the power tool 1.

  The antenna 30 only needs to be disposed in at least one of the grip portion 53 and the second main body portion 52, and is disposed in a region between the operation portion 70 and the battery pack mounting portion 60 in the longitudinal direction of the grip portion 53. It does not have to be. For example, the antenna 30 may be disposed above the midpoint of the grip portion 53 in the longitudinal direction. As long as the antenna 30 is disposed on the grip portion 53, the antenna 30 may be disposed substantially equal to or above the operation portion 70 in the vertical direction of the electric power tool 1. Further, the antenna 30 may be disposed in front of the midpoint of the grip portion 53 in the short direction.

  Further, the antenna 30 may be disposed in the second main body portion 52. The antenna 30 may be disposed above the center of the second main body portion 52 in the vertical direction, may be disposed below, or may be disposed in the central portion in the vertical direction. Moreover, the antenna 30 may be arrange | positioned ahead of the front-back direction in the 2nd main-body part 52, may be arrange | positioned back, and may be arrange | positioned at the center part of the front-back direction.

(Embodiment 2)
A power tool 1A according to Embodiment 2 of the present disclosure will be described with reference to FIG.

  In FIG. 5, elements that are the same as those of the electric power tool 1 according to the first embodiment are denoted by the same reference numerals as in the first embodiment. Moreover, description of elements common to the electric power tool 1 according to the first embodiment is omitted as appropriate.

  In the electric tool 1 </ b> A according to the present embodiment, the wireless communication unit 40 is disposed in the second main body 52. The antenna 30 is disposed on the second main body portion 52. That is, the antenna 30 is disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40, and both the antenna 30 and the wireless communication unit 40 are disposed on the second main body 52.

  In the present embodiment, since the antenna 30 is disposed in the second main body portion 52, it is easier to secure the distance between the antenna 30 and the motor 10. Therefore, even when noise is generated from the motor 10, wireless communication using the antenna 30 can be made less susceptible to noise. In addition, since the wireless communication unit 40 is disposed in the second main body unit 52, it is easier to ensure a distance between the wireless communication unit 40 and the motor 10. Therefore, even when noise is generated from the motor 10, wireless communication can be made less susceptible to noise. Since both the antenna 30 and the wireless communication unit 40 are arranged in the second main body 52, the wireless communication using the antenna 30 is particularly difficult to be affected by noise.

  In the present embodiment, one surface in the thickness direction of the substrate 41 intersects the longitudinal direction of the grip portion 53. In the present embodiment, the wireless communication unit 40 is arranged so that one surface in the thickness direction of the substrate 41 is substantially parallel to the front-rear direction of the power tool 1. The wireless communication unit 40 is disposed below the center of the second main body 52 in the vertical direction. That is, the wireless communication unit 40 is disposed in the second main body unit 52 at a location close to the battery pack mounting unit 60. Therefore, it is easier to secure a distance between the wireless communication unit 40 and the motor 10, and even when noise is generated from the motor 10, the wireless communication is not easily affected by the noise.

  In the present embodiment, the antenna 30 is disposed behind the center of the second main body portion 52 in the front-rear direction. Therefore, compared with the case where it arrange | positions ahead rather than the center of the front-back direction of the 2nd main-body part 52, the distance between the antenna 30 and a work object can be ensured. For this reason, it is easy to prevent the communication status from becoming unstable due to fading due to the reflection of radio waves due to the influence of the work target.

  One surface in the thickness direction of the substrate 41 only needs to intersect with the longitudinal direction of the grip portion 53, and may not be substantially parallel to the front-rear direction of the electric power tool 1. Further, the wireless communication unit 40 may be disposed above the center of the second main body 52 in the vertical direction. Furthermore, the antenna 30 may be disposed forward of the center of the second main body portion 52 in the front-rear direction.

  As long as the modified example of the electric tool 1A according to the present embodiment does not depart from the configuration of the present embodiment, the modified example described above as the modified example of the electric tool 1 of the first embodiment can be applied in appropriate combination.

(Embodiment 3)
A power tool 1B according to Embodiment 3 of the present disclosure will be described with reference to FIG.

  In FIG. 6, elements common to the electric power tool 1 </ b> A according to the second embodiment are denoted by the same reference numerals as in the second embodiment. Further, description of elements common to the power tool 1A according to the second embodiment will be omitted as appropriate.

  In the electric power tool 1B according to the present embodiment, when the direction in which the tool 11 faces the work target is set as the facing direction, the one farther from the work target among the two regions that bisect the second main body 52 in the facing direction. The wireless communication unit 40 is arranged in the area. That is, the wireless communication unit 40 is disposed behind the center of the second main body 52 in the front-rear direction. Therefore, it is easier to secure a distance between the wireless communication unit 40 and the motor 10, and even when noise is generated from the motor 10, the wireless communication is not easily affected by the noise.

  In the present embodiment, when the direction in which the tool 11 faces the work target is defined as the facing direction, the antenna 30 is the one farther from the work target in the two regions obtained by dividing the second main body 52 into two equal parts. Arranged in the area. That is, the antenna 30 is arranged behind the center of the second main body portion 52 in the front-rear direction. Therefore, not only the distance between the antenna 30 and the motor 10 can be secured, but also the distance between the antenna 30 and the work target can be secured. Therefore, it is easy to prevent the wireless communication using the antenna 30 from being more affected by noise or fading due to the reflection of radio waves due to the influence of the work target, resulting in unstable communication conditions.

  In the present embodiment, the wireless communication unit 40 is disposed so that one surface in the thickness direction of the substrate 41 is substantially parallel to the vertical direction of the electric power tool 1B. However, the wireless communication part 40 should just be arrange | positioned back rather than the center of the front-back direction of the 2nd main-body part 52, and the one surface of the thickness direction of the board | substrate 41 is not substantially parallel with the up-down direction of the electric tool 1B. Also good.

  As long as the modification of the electric tool 1B according to the present embodiment does not depart from the configuration of the present embodiment, the modification described above as the modification of the electric tool 1 of the first embodiment can be applied in appropriate combination.

(Embodiment 4)
A power tool 1C according to Embodiment 4 of the present disclosure will be described with reference to FIG.

  In FIG. 7, elements that are the same as those of the electric power tool 1 according to the first embodiment are denoted by the same reference numerals as in the first embodiment. Moreover, description of elements common to the electric power tool 1 according to the first embodiment is omitted as appropriate.

  In the electric tool 1C according to the present embodiment, the antenna 30 and the wireless communication unit 40 are arranged apart from each other. That is, the antenna 30 is not disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40.

  In the present embodiment, the wireless communication unit 40 is disposed below the center in the longitudinal direction of the grip portion 53 as in the case of the first embodiment. On the other hand, the antenna 30 is disposed above the center of the grip portion 53 in the longitudinal direction. Thus, the antenna 30 may be disposed at a position away from the wireless communication unit 40 as long as it is connected to the wireless communication unit 40 via the antenna line 31. Since the antenna 30 is not easily affected by noise from the motor 10, the antenna 30 can be reduced in size. Therefore, when the antenna 30 and the wireless communication unit 40 are arranged apart from each other as in the present embodiment, if the antenna 30 is small, the antenna 30 can be easily arranged at an arbitrary location. Can increase the degree of freedom.

  The antenna 30 may be disposed away from the wireless communication unit 40 and may not be disposed above the center of the grip unit 53 in the longitudinal direction. For example, the antenna 30 may be disposed below the center of the grip portion 53 in the longitudinal direction. Moreover, in this embodiment, although the antenna 30 is arrange | positioned near the center of the transversal direction of the grip part 53, it is not restricted to this. The antenna 30 may be disposed in front of the center of the grip portion 53 in the short direction, or may be disposed in the rear. The antenna 30 may not be disposed on the grip portion 53. The antenna 30 may be disposed at an arbitrary position of the second main body portion 52.

  As long as the modified example of the electric tool 1C according to the present embodiment does not depart from the configuration of the present embodiment, the modified example described above as the modified example of the electric tool 1 of the first embodiment can be applied in appropriate combination.

(Embodiment 5)
An electric tool 1D according to Embodiment 5 of the present disclosure will be described with reference to FIG.

  In FIG. 8, the same code | symbol as the case of Embodiment 2 is attached | subjected to the element which is common with 1 A of electric tools which concern on Embodiment 2. FIG. Further, description of elements common to the power tool 1A according to the second embodiment will be omitted as appropriate.

  In the electric power tool 1D according to the present embodiment, the antenna 30 and the wireless communication unit 40 are arranged apart from each other. That is, the antenna 30 is not disposed on one surface in the thickness direction of the substrate 41 of the wireless communication unit 40.

  In the present embodiment, as in the case of the second embodiment, the wireless communication unit 40 moves the upper and lower sides of the second main body 52 so that one surface in the thickness direction of the substrate 41 is substantially parallel to the front-rear direction of the power tool 1D. It is arranged below the center of the direction. On the other hand, the antenna 30 is disposed in the grip portion 53. Thus, the antenna 30 may be disposed at a position away from the wireless communication unit 40 as long as it is connected to the wireless communication unit 40 via the antenna line 31. Since the antenna 30 is not easily affected by noise from the motor 10, the antenna 30 can be reduced in size. Therefore, when the antenna 30 and the wireless communication unit 40 are arranged apart from each other as in the present embodiment, if the antenna 30 is small, the antenna 30 can be easily arranged at an arbitrary location. Can increase the degree of freedom.

  In the present embodiment, the antenna 30 is disposed near the center of the grip portion 53 in the longitudinal direction. However, the antenna 30 only needs to be disposed away from the wireless communication unit 40, and may be disposed above or below the center of the grip portion 53 in the longitudinal direction, for example. Moreover, in this embodiment, although the antenna 30 is arrange | positioned behind the center of the transversal direction of the grip part 53, it is not restricted to this. The antenna 30 may be disposed near the center of the grip portion 53 in the short direction, or may be disposed forward of the center. The antenna 30 may not be disposed on the grip portion 53. The antenna 30 may be disposed at an arbitrary position of the second main body portion 52.

  As long as the modification of electric tool 1D concerning this embodiment does not deviate from the composition of this embodiment, it can apply combining the modification explained above as a modification of electric tool 1 of Embodiment 1 suitably.

(Summary)
As is clear from the embodiment described above, the power tool (1, 1A, 1B, 1C, 1D) according to the first aspect of the present disclosure includes a motor (10), a transmission mechanism (20), an antenna ( 30), a wireless communication part (40), and a housing (50). The transmission mechanism (20) transmits the output of the motor (10) to the tool (11). The wireless communication unit (40) performs at least one of transmission and reception of work information by wireless communication using the antenna (30). The housing (50) includes a first main body portion (51), a second main body portion (52), and a grip portion (53). The first main body (51) accommodates the motor (10) and the transmission mechanism (20). The second body part (52) has a battery pack attachment part (60) to which the battery pack (61) can be attached. The grip portion (53) connects the first main body portion (51) and the second main body portion (52). The antenna (30) is disposed on at least one of the grip part (53) and the second main body part (52).

  According to the first aspect, for example, the distance between the antenna (30) and the motor (10) as compared with the case where both the antenna (30) and the motor (10) are arranged in the first main body (51). Easy to secure. Therefore, even when noise is generated from the motor (10), wireless communication using the antenna (30) can be made less susceptible to noise. As a result, for example, communication errors are less likely to occur.

  The electric power tool (1, 1A, 1B, 1C, 1D) according to the second aspect of the present disclosure further includes an operation part (70) disposed in the grip part (53) in the first aspect.

  According to the second aspect, since the operation portion (70) is disposed in the grip portion (53), the operator holds the grip portion (53) by hand and holds the electric power tool (1, 1A, 1B, When using 1C, 1D), the operation unit (70) can be easily operated.

  In the electric tool (1, 1A, 1B, 1C, 1D) of the third aspect according to the present disclosure, the following configuration is adopted in the second aspect. That is, the antenna (30) is provided between the operating portion (70) and the battery pack mounting portion (60) in the longitudinal direction of the grip portion (53) among the grip portion (53) and the second main body portion (52). Arranged in the area.

  According to the 3rd aspect, it is easy to ensure the distance between an antenna (30) and a motor (10). Therefore, even when noise is generated from the motor (10), wireless communication using the antenna (30) can be made less susceptible to noise.

  In the electric power tool (1, 1A, 1B, 1C, 1D) according to the fourth aspect of the present disclosure, in the first or second aspect, the antenna (30) is disposed on the second main body (52). Yes.

  According to the fourth aspect, since the motor (10) is disposed in the first body portion (51), while the antenna (30) is disposed in the second body portion (52), the antenna (30). It is easier to secure a distance between the motor and the motor (10). Therefore, even when noise is generated from the motor (10), wireless communication using the antenna (30) can be made less susceptible to noise.

  In the electric power tool (1, 1A, 1B, 1C, 1D) according to the fifth aspect of the present disclosure, in any one of the first to fourth aspects, the wireless communication unit (40) includes the substrate (41). Including. The antenna (30) is disposed on one surface of the substrate (41) in the thickness direction.

  According to the fifth aspect, since the distance between the antenna (30) and the substrate (41) of the wireless communication unit (40) is reduced, wireless communication can be made less susceptible to noise.

  In the electric power tool (1, 1A, 1B, 1C, 1D) according to the sixth aspect of the present disclosure, in any one of the first to fourth aspects, the wireless communication unit (40) includes the second main body ( 52).

  According to the 6th aspect, since the motor (10) is arrange | positioned at the 1st main body part (51), while the radio | wireless communication part (40) is arrange | positioned at the 2nd main body part (52), it is wireless communication. It is easy to ensure the distance between the part (40) and the motor (10). Therefore, even when noise is generated from the motor (10), wireless communication can be made less susceptible to noise.

  In the electric power tool (1, 1A, 1B, 1C, 1D) according to the seventh aspect of the present disclosure, in the sixth aspect, the wireless communication unit (40) includes a substrate (41). One surface in the thickness direction of the substrate (41) intersects the longitudinal direction of the grip portion (53).

  According to the 7th aspect, it is easier to ensure the distance between a radio | wireless communication part (40) and a motor (10). Therefore, even when noise is generated from the motor (10), wireless communication can be made less susceptible to noise.

  In the electric power tool (1, 1A, 1B, 1C, 1D) according to the eighth aspect of the present disclosure, in the sixth or seventh aspect, the second main body (52) is divided into two equal parts in the facing direction. The wireless communication unit (40) is arranged in an area far from the work target in the area. The facing direction is the direction in which the tool (11) faces the work target.

  According to the 8th aspect, the distance between the work object at the time of using an electric tool (1, 1A, 1B, 1C, 1D) and a radio | wireless communication part (40) is securable. For this reason, fading occurs due to the reflection of radio waves due to the influence of the work target, and the communication status is less likely to become unstable. As a result, for example, communication errors are less likely to occur.

  In the power tool (1, 1A, 1B, 1C, 1D) according to the ninth aspect of the present disclosure, in any one of the first to eighth aspects, the area of the cross section of the grip portion (53) is the second. It is smaller than the cross-sectional area of the main body (52). The area of the cross section of the grip part (53) is the area of the cross section orthogonal to the longitudinal direction of the grip part (53), and the area of the cross section of the second main body part (52) is orthogonal to the longitudinal direction. It is the area of the section of the second body part (52).

  According to the ninth aspect, since the grip portion (53) has a narrower shape than the second main body portion (52), the operator grasps the grip portion (53) with his / her hand to hold the electric tool (1, 1A). , 1B, 1C, 1D), the grip portion (53) can be easily gripped.

  The electric tool with battery pack (100, 100A, 100B, 100C, 100D) according to the tenth aspect of the present disclosure is the electric tool (1, 1A, 1B, 1C, any one of the first to ninth aspects). 1D) and a battery pack (61). The battery pack (61) is detachably attached to the battery pack attachment portion (60).

  According to the tenth aspect, it is possible to obtain an electric tool (100, 100A, 100B, 100C, 100D) with a battery pack in which wireless communication is less susceptible to noise and communication errors are less likely to occur.

  The configurations according to the second to tenth aspects are not essential to the electric power tool (1, 1A, 1B, 1C, 1D) and can be omitted as appropriate.

1, 1A, 1B, 1C, 1D Electric tool 10 Motor 11 Tool 20 Transmission mechanism 30 Antenna 40 Wireless communication section 50 Housing 51 First body section 52 Second body section 52 Grip section 60 Battery pack mounting section 61 Battery pack

Claims (10)

A motor,
A transmission mechanism for transmitting the output of the motor to the tool;
An antenna,
A wireless communication unit that performs at least one of transmission and reception of work information by wireless communication using the antenna; and
A housing, and
The housing is
A first main body for housing the motor and the transmission mechanism;
A second body portion having a battery pack mounting portion to which the battery pack can be mounted;
A grip portion connecting the first main body portion and the second main body portion,
The antenna is disposed on at least one of the grip part and the second main body part.
Electric tool. The electric tool further includes an operation unit arranged in the grip unit.
The power tool according to claim 1. The antenna is arranged in a region between the operation portion and the battery pack mounting portion in the longitudinal direction of the grip portion, of the grip portion and the second main body portion.
The electric tool according to claim 2. The antenna is disposed on the second main body portion.
The electric tool according to claim 1 or 2. The wireless communication unit includes a substrate,
The antenna is disposed on one surface of the substrate in the thickness direction.
The power tool according to any one of claims 1 to 4. The wireless communication unit is disposed in the second main body unit,
The power tool according to any one of claims 1 to 4. The wireless communication unit includes a substrate,
One surface of the substrate in the thickness direction intersects the longitudinal direction of the grip portion.
The power tool according to claim 6. When the direction in which the tool faces the work target is set as the facing direction, the wireless communication unit is arranged in a region farther from the work target among two regions obtained by dividing the second main body part into two in the facing direction. Is placed,
The power tool according to claim 6 or 7. The area of the cross section of the grip part orthogonal to the longitudinal direction of the grip part is smaller than the area of the cross section of the second main body part orthogonal to the longitudinal direction.
The power tool according to any one of claims 1 to 8. The power tool according to any one of claims 1 to 9,
The battery pack attached to the battery pack attachment portion,
Electric tool with battery pack.

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