JP2012061540A - Electric hand tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric hand tool favorable in handiness.SOLUTION: In the electric hand tool including an authentication part 1 authenticating ID information supplied from an ID acquiring part, and an electric drive 3 driven on condition that authentication is established by the authentication part 1 to actuate a working tip 2 in a housing 4, the ID obtaining part of the authentication part 1 is disposed on a sidewall part of a through-hole part 5 which is opened in the housing 4 and has a size enough to allow an ID information supply operation.

Description

  The present invention relates to an electric hand tool.

  As a hand tool that can prevent theft or the like by requesting a predetermined authentication operation in use, the one shown in FIG. 1 of Patent Document 1 is known.

  In this conventional example, a numeric keypad (ID acquisition unit) is arranged on the side surface of the body part of the hand tool, and the hand tool can be used when the input value from the ID acquisition unit is correct.

Special table 2001-520944

  However, in the above-described conventional example, since the ID acquisition unit is disposed on the body side wall of the hand tool, depending on the storage posture, the ID acquisition unit may be located on the back side facing the floor surface. When performing the above, it is necessary to reverse the posture of the tool, and there is a problem that the usability is poor.

  The present invention has been made to solve the above drawbacks, and an object thereof is to provide an electric hand tool that is easy to use.

  The electric hand tool is formed by housing an electric drive device 3 such as a motor and an authentication unit 1 in a housing 4. The authentication unit 1 includes an ID acquisition unit, and the electric drive device 3 can be driven when the ID information acquired from the ID acquisition unit matches a registered ID registered in advance. The machining tip 2 is actuated by driving of.

  Here, the electric hand tool refers to a handleable tool for driving the machining tip 2 using the electric drive device 3 accommodated in the housing 4. The drill device, the hammer drill device, the electric type Includes multi-needle chisel device, circular saw device, etc. The processing tip 2 refers to, for example, a drill bit in a drill device, a drill bit in a hammer drill device, or a chisel, regardless of whether it can be attached to and detached from the housing 4.

  The authentication unit 1 includes, for example, a password verification device using a password input unit as an ID acquisition unit, a biometric authentication device such as fingerprint authentication using a fingerprint scanner as an ID acquisition unit, and an RFID using an RFID reader / writer as an ID acquisition unit. Various devices such as an authentication device can be used, and the ID acquisition unit is disposed on the side wall portion of the through hole portion 5 provided in the housing 4.

  The through-hole-shaped portion 5 has a size capable of supplying ID information to the ID acquisition portion and penetrates from one surface of the housing 4 to the opposite surface. For example, the password verification device is connected to the authentication portion 1. If the fingerprint scanner is used as an ID acquisition unit, the card can be formed in a size that allows insertion of a finger, at least in a size that ensures a sufficient space for operating the operation buttons and the like. In the case of an RFID authentication device that holds ID information, the slit can be inserted into a card.

  When an RFID authentication device is used as the authentication unit 1, the authentication operation can be performed simply by placing the RFID tag 7 over the RFID reader / writer. For this reason, for example, in the case of an authentication device that requires an operation to the ID acquisition unit, the operability of access may be affected by the orientation of the ID acquisition unit, that is, how to place the hand tool, etc. The operability of the authentication operation according to the posture is not deteriorated.

  In this invention which arrange | positions an ID acquisition part in the side wall part of the through-hole-shaped part 5, since the opening end of the through-hole-shaped part 5 appears on a table | surface no matter what posture the electric hand tool is placed, An authentication operation can be performed by inserting a hand or a card from the open end. As a result, since it is not necessary to change the posture of the tool for the authentication operation, usability is improved.

  Moreover, since the side wall of the through-hole-like portion 5 is placed on the floor surface or the like in any posture, a wall surface exists in front, so that it is possible to prevent a collision with the floor surface or the like. As a result, the chance of damage to the ID acquisition unit is reduced, and it is possible to prevent the ID acquisition unit from being operated excessively.

  As described above, the through-hole-shaped portion 5 can be set to an appropriate position and size as long as the operation to the ID acquisition portion is possible, but for forming the handle portion 6 in the housing 4 The opening can be used as the through hole portion 5. In this case, the through hole portion 5 is used as a finger insertion hole when the handle portion 6 is gripped.

  The through-hole-shaped part 5 is not limited to the one whose entire circumference is closed, but is partly open, that is, one end is free on the condition that contact of the ID acquisition part with the floor surface or the like is prevented. You may form the handle | steering-wheel parts 6, such as J shape used as the end. Further, the height of the peripheral wall in the through-hole-shaped portion 5 does not have to be uniform over the entire circumference, and the handle portion 6 may be formed thin by lowering the portion corresponding to the handle portion 6.

  According to the present invention, since the ID acquisition unit of the authentication unit is arranged on the side wall portion of the through-hole-shaped unit, the authentication operation can be performed regardless of the posture of the tool, so that the usability can be improved.

It is a figure which shows this invention, (a) is a side view, (b) is principal part sectional drawing of (a), (c) is a front view which shows an auxiliary | assistant handle. It is a functional block diagram of an electric hand tool.

  FIG. 1 shows an embodiment of the present invention configured as a hammer drill. The hammer drill is formed so that it can be handled by housing a motor (electrical drive 3) in the housing 4. A chuck portion 8 that holds a drill bit (processing tip portion 2) is disposed at one end of the housing 4, and the power of the motor 3 is transmitted to the chuck portion 8 via an appropriate gear train 17. 2 is activated.

  Further, an auxiliary handle 9 for providing a handling means to an operator is mounted on the housing 4 together with a handle portion 6 described later. The auxiliary handle 9 can be rotated around the center of rotation of the drill bit 2 and can be repositioned between the solid line position and the chain line position in FIG. Since the inadvertent movement of the auxiliary handle 9 during the operation significantly reduces the safety of the operation, a fixing device (not shown) is attached to the auxiliary handle 9.

  The handle portion 6 is disposed at the rear end portion of the housing 4, and the housing 4 has a through-hole-like portion penetrating the front and back in order to allow the operator to insert a finger and grip the handle portion 6. 5 is established. A trigger lever 10 is attached to the handle portion 6 so as to be rotatable around the pivot axis 10a.

  Further, the housing 4 stores an authentication unit 1, a trigger detection switch 11, a control device 12, and an LED 13.

  As shown in FIG. 2, an RFID authentication device is used for the authentication unit 1. The RFID authentication apparatus includes an ID storage unit 1a that stores an authenticable ID, and an RFID reader / writer 1b that obtains an ID unique to the RFID tag 7 by communicating with the RFID tag 7 possessed by the user at a short distance. When the ID read by the RFID reader / writer 1b matches the ID of the ID storage unit 1a, an authentication establishment signal is output to the control means 14 described later.

  As shown in FIG. 1B, the RFID reader / writer 1b is disposed on the peripheral wall of the through-hole-shaped portion 5, more precisely on the back surface of the wall surface facing the peripheral wall on which the trigger lever 10 is disposed. The RFID tag 7 inserted into the hole 5 can be recognized, and damage due to exposure to the peripheral wall surface is prevented.

  In this embodiment, the RFID tag 7 is a seal tag that can be attached to a user's favorite item and held by the user. As shown in FIG. Can be attached to the mobile phone 15 or the like that is always worn, and loss of the RFID tag 7 can be prevented.

  Therefore, in this embodiment, even if the electric hand tool is placed on the floor in any posture, the handle portion 6 is penetrated so that the handle portion 6 can be gripped without performing the posture reversing operation or the like with respect to the electric hand tool. The authentication operation can be performed by bringing the RFID tag 7 into contact with or close to the wall surface of the hole 5.

  Further, by providing the RFID reader / writer 1b on the wall surface on the side where the trigger lever 10 is installed, that is, the wall surface other than the handle portion 6, the RFID reader / writer 1b installation wall surface during work is damaged due to an excessive load. It is prevented. Further, the handle portion 6 facing the wall surface on which the RFID reader / writer 1b is installed functions as an obstacle wall when other tools, equipment, etc. move to the installation wall surface of the RFID reader / writer 1b. Inadvertent damage to the reader / writer 1b can be prevented.

  The control device 12 includes a power supply adjustment unit 12a, a motor drive circuit 12b, and a control unit 14, and the power supplied from the commercial power supply 16 or the battery is stepped down by the power supply adjustment unit 12a or AC-DC when necessary. It is converted and supplied to the control means 14 and further fed to the motor drive circuit 12b.

  The control means 14 includes a motor control unit 14b controlled by the control unit 14a, an operation management unit 14c, a trigger detection unit 14d, and a display control unit 14e. The control unit 14a accepts an authentication establishment signal from the authentication unit 1. Then, an operation enable flag is set in the operation management unit 14c, and the display control unit 14e supplies an LED drive current to turn on the LED to notify the user that the operation is available.

  The trigger detection unit 14d monitors the output of the trigger detection switch 11 that is activated by an operation on the trigger lever 10, and when the control unit 14a detects an operation on the trigger lever 10 through the trigger detection unit 14d, the operation management unit An inquiry is made as to whether the operable flag is set at 14c. When the operable flag is set in the operation management unit 14c, the motor 3 is rotated by supplying power to the motor drive circuit 12b via the motor control unit 14b, and the drill bit 2 is operated.

  The output from the trigger detection switch 11 to the trigger detection unit 14d includes information about the pull-in depth of the trigger lever 10 in addition to the ON / OFF information of the trigger lever 10, and the motor control unit 14b is a motor drive circuit. The current value supplied to 12b is adjusted according to the pull-in depth, and the number of rotations of the motor 3 is controlled.

DESCRIPTION OF SYMBOLS 1 Authentication part 2 Processing front-end | tip part 3 Electric drive device 4 Housing 5 Through-hole-shaped part 6 Handle part

Claims (3)

An electric hand tool including an authentication unit that authenticates ID information supplied from an ID acquisition unit, and an electric drive device that is driven on the condition that authentication is established in the authentication unit and that operates a processing tip part in a housing. ,
An electric hand tool in which an ID acquisition unit of the authentication unit is disposed on a side wall portion of a through-hole-shaped portion that is opened in a housing and capable of supplying ID information.   The electric hand tool according to claim 1, wherein a wall surface of the through-hole-shaped portion constitutes a part of a side wall surface of a handle portion that provides a grip portion to a user.   The electric hand tool according to claim 1, wherein the authentication unit is formed by an RFID authentication device and disposed on a back surface of a housing wall surface.

Images