WO2012035814A1

WO2012035814A1 - Power hand tool

Info

Publication number: WO2012035814A1
Application number: PCT/JP2011/059624
Authority: WO
Inventors: 真人風間; 秀二中村; 則和増田
Original assignee: 株式会社アルファ
Priority date: 2010-09-15
Filing date: 2011-04-19
Publication date: 2012-03-22
Also published as: JP2012061542A

Abstract

A power hand tool is provided with: a power supply connection detector (4) for detecting a connection to a power supply source (1); an authentication unit (6) that sets consistency between an inputted authentication ID and a registered ID stored in an ID storage unit (5) as a prerequisite for authentication; an ID writing unit (7) for writing the authentication ID, which has been inputted into the authentication unit (6), into the ID storage unit (5); and a drive management unit (8) for determining whether it is possible to drive an electric drive apparatus (2) in response to a drive request. The ID writing unit (7) begins operation through authentication in the authentication unit (6) within a prescribed amount of time following detection of a power supply connection by the power supply connection detector (4). The drive management unit (8) makes the driving of the electric drive apparatus (2) possible, with authentication while the ID writing unit (7) is not operating as a prerequisite.

Description

Electric hand tools

The present invention relates to an electric hand tool.

As an electric hand tool incorporating an authentication device to prevent theft, the one described in Patent Document 1 is known. In this conventional example, the electric hand tool is provided with a mode change switch, and the tool cannot be used by pressing the mode change switch for a predetermined time. An “identification code collation mode” for performing an authentication operation for canceling the mode and an “identification code setting mode” for setting an identification code in the authentication unit are selected, and a mode-specific operation is performed.

However, in the above-described conventional example, the setting of the identification code for authentication is programmed as an operation in the same row as the mode change for normal use of the tool, and thus has the following problems.

That is, for example, since the code setting operation is included in the choices in the series of operations, the operation system becomes complicated. Furthermore, when the frequency of the identification code setting operation is extremely low, the operation method is easy to forget and the usability is poor.

Japanese Unexamined Patent Publication No. 2004-181549

One or more embodiments of the present invention provide an electric hand tool that improves usability by making authentication or registration operation of an authentication ID easy to understand, and an operation control method thereof.

According to one or more embodiments of the present invention, the electric hand tool detects the machining tip 3 driven by the electrical drive device 2 fed from the power supply source 1 and the connection to the power supply source 1. An authentication unit 6 that uses a match between the power connection detection unit 4 and the registered ID stored in the ID storage unit 5 of the input authentication ID as an authentication establishment condition, and the authentication ID input to the authentication unit 6 in the operating state May be provided with an ID writing unit 7 that writes the information into the ID storage unit 5 and a drive management unit 8 that determines whether or not the electric drive device 2 can be driven in response to a drive request. The ID writing unit 7 may be configured to start operation when authentication is established in the authentication unit 6 within a predetermined time from detection of power connection in the power connection detection unit 4. The drive management unit 8 may be configured to allow the electric drive device 2 to be driven on the condition that authentication is established when the ID writing unit 7 is not operated.

Further, according to one or more embodiments of the present invention, the operation of the electric hand tool can be performed by operating the machining tip portion 3 driven by the electric drive device 2 fed by the power supply source 1 as an RFID authentication device. 6 may be controlled by allowing the authentication in 6 as a condition. Alternatively, the connection to the power supply source 1 may be detected, and a transition to the new ID registration mode may be made on condition that the RFID tag 9A that can be authenticated at the time of connection to the power supply source 1 is detected.

Other features and effects will be apparent from the description of the embodiments and the appended claims.

FIG. 1 (a) is a side view of an electric hand tool of an exemplary embodiment. FIG.1 (b) is principal part sectional drawing of Fig.1 (a). FIG. 1C is a front view showing the auxiliary handle. FIG. 2 is a functional block diagram of the electric hand tool. FIG. 3 is a flowchart showing the operation of the electric hand tool.

The electric hand tool is a handleable tool for operating the machining tip 3 using an electric drive device 2 such as a motor housed in the housing 10. Examples of the electric hand tool include a drill device, a hammer drill device, an electric multi-needle chisel device, a circular saw device, and the like. Examples of the processing tip 3 include a drill bit in a drill device, a drill bit in a hammer drill device, or a chisel. It does not matter whether the processing tip 3 is detachable from the housing 10 or not.

The electric hand tool operates the ID writing unit 7 in addition to the operation mode in which the driving of the electric driving device 2 is permitted on the condition that the authentication unit 6 performs authentication, and the authentication ID supplied to the authentication unit 6 is stored in the ID storage unit. 5 and a new ID registration mode that can be used as an authentication ID thereafter. The ID writing unit 7 may automatically start to operate when authentication in the authentication unit 6 is established within a predetermined time after the power connection detection unit 4 detects power connection.

By automatically operating the ID writing unit 7 only at the authentication timing in the authentication unit 6, there is no troublesome operation of the mode selection switch by the user, and the usability is improved. The operation of establishing authentication at the time of power connection and then registering a new authentication ID is, for example, an operation in which a person in charge at the site designates a tool user at the start of a day or a group of work processes. Since it matches the flow, the operation is not forgotten and the usability is improved.

In addition, if the ID writing unit 7 is configured to delete all the registered IDs except the ID used for starting the operation and replace them with new registration IDs, it becomes possible to renew the tool use authority. Usability is improved.

Further, the operation ID and the registration ID are stored in the ID storage unit 5, and the ID writing unit 7 is configured to start operation upon establishment of authentication for the registration ID and write the operation ID. For example, operators who can perform registration operations can be limited to site managers.

For the authentication unit 6, various devices such as a password verification device and a biometric authentication device such as fingerprint authentication can be used. When the RFID authentication device is used as the authentication means, the tool can be reduced in size and the usability is improved. In this case, if the ID writing unit 7 sequentially reads the IDs of the RFID tags 9 that have been deceived within a predetermined time and registers them in the ID storage unit 5, the registration efficiency increases.

According to the electric hand tool configured as described above, the authentication or the registration operation of the authentication ID becomes easy to understand, so that the usability can be improved.

<Typical Examples>
FIG. 1 (a) to FIG. 1 (c) show a hammer drill as an exemplary embodiment. The hammer drill is formed so that it can be handled by housing a motor (electrical drive device 2) in the housing 10. A chuck portion 11 that holds a drill bit (processing tip 3) is disposed at one end of the housing 10, and the power of the motor 2 is transmitted to the chuck portion 11 via an appropriate gear train 12. 3 is activated.

Also, the housing 10 is provided with a handle portion 10a and an auxiliary handle 10b, and a trigger lever 13 is mounted on the inner wall surface of the handle portion 10a so as to be rotatable around the pivot 13a.

The auxiliary handle 10b can be rotated around the center of rotation of the drill bit 3, and can be changed in position between the solid line position and the chain line position in FIG. Inadvertent movement of the auxiliary handle 10b during work significantly reduces the safety of the work, so a fixing device (not shown) is attached to the auxiliary handle 10b.

Furthermore, the authentication unit 6, trigger detection switch 14, control device 15, and LED 16 are stored in the housing 10. *

As shown in FIG. 2, in an exemplary embodiment, an RFID authentication device is used as the authentication unit 6. The RFID authentication apparatus includes an ID storage unit 5 that stores an authenticable ID, and an RFID reader / writer 6a that obtains an ID unique to the RFID tag 9 by communicating with the RFID tag 9 possessed by the user at a short distance. As the RFID tag 9, a registration tag 9A assumed to be used by an administrator and an operation tag 9B assumed to be used by an operator are mainly used. The IDs of the

tags

9A and 9B are stored in the ID storage unit 5 as registration IDs and operation IDs. When the ID read by the RFID reader / writer 6a matches the ID in the ID storage unit 5, the authentication establishment signal and the type of the authenticated ID, that is, the control ID described later, that is, the registration ID or the operation ID Output to unit 17.

In a typical embodiment, as the RFID tag 9, a seal tag that can be attached to a user's favorite object and held is used. As shown in FIG. 1B, the RFID tag 9 can be attached to a mobile phone 18 or the like that is always worn by an operator. As a result, loss of the RFID tag 9 can be prevented.

The control device 15 includes a power adjustment unit 15a, a motor drive circuit 15b, and a control unit 17. The power supplied from the commercial power supply 1 or the battery is stepped down by the power supply adjustment unit 15a or AC-DC converted when necessary and supplied to the control unit 17 and further supplied to the motor drive circuit 15b.

The control unit 17 includes a power connection detection unit 4, a motor control unit 17b, an ID writing unit 7, a trigger detection unit 17c, a display control unit 17d, and a drive management unit 8 controlled by the control unit 17a. In the normal operation mode, when the control unit 17a accepts the authentication establishment signal from the authentication unit 6, the operable flag is set in the drive management unit 8, and the display control unit 17d supplies the drive current of the LED 16. The LED 16 is turned on to inform the user that it is available.

In the drive management unit 8, the valid period of the operable flag is managed by a timer. When the timer expires, the operable flag is reset. In an exemplary embodiment, the timer is configured as an interval timer that measures work interruption time. After the motor 2 is driven, the trigger detection switch 14 starts when the switch is turned OFF, and is set again when turned ON. As described above, when the operation interruption time is longer than the predetermined time, it is possible to effectively prevent theft during the operation interruption by resetting the operable flag and requesting the authentication again.

The trigger detection unit 17c monitors the output of the trigger detection switch 14 that is activated by operating the trigger lever 13. When the control unit 17a detects an operation on the trigger lever 13 via the trigger detection unit 17c, the control unit 17a inquires of the drive management unit 8 whether the operable flag is set. When the operable flag is set in the drive management unit 8, the motor 2 is rotated by supplying power to the motor drive circuit 15b via the motor control unit 17b, and the drill bit 3 is operated.

The output from the trigger detection switch 14 to the trigger detection unit 17c includes information about the pull-in depth of the trigger lever 13 in addition to the ON / OFF information of the trigger lever 13. The motor control unit 17b adjusts the current value supplied to the motor drive circuit 15b according to the pull-in depth, and controls the rotation speed of the motor 2.

On the other hand, when the control unit 17a receives the authentication establishment signal from the authentication unit 6 under a predetermined condition, the authentication establishment in the authentication unit 6 is accurately connected to the commercial power source 1 of the electric hand tool. If the authentication timing in the authentication unit 6 is the same as the detection timing of the registration tag 9A, the operation of the ID writing unit 7 is started. The ID writing unit 7 makes a transition to the ID registration mode. The above conditions correspond to an operation in which the registration tag 9A is brought into contact with or close to the RFID reader / writer 6a and the power plug 19 is inserted into the outlet. In the ID registration mode, the ID writing unit 7 sequentially stores the IDs of the RFID tags 9 placed on the RFID reader / writer 6a as operation IDs in the ID storage unit 5, and further erases all registered operation IDs.

The ID writing unit 7 notifies the control unit 17a of the write end information when the exit condition of the ID registration mode is satisfied (in the typical embodiment, when a predetermined time has elapsed since the transition to the ID registration mode). The unit 17a returns from the ID registration mode to the operation mode. In addition, the ID registration mode leaving condition can be set as appropriate, such as when the next registration target RFID tag 9 is not deceived within a predetermined time after the new registration of the operation ID is completed. .

FIG. 3 shows a control flow of the control unit 17. First, when the electric hand tool uses a commercial power source, the connection of the power plug 19 to the outlet is detected. When the battery power source is used, installation of the battery is detected by the power connection detection unit 4 (step 100). ), The control unit 17a determines the output from the authentication unit 6 (step 101). When the authentication establishment signal for the registration ID is output from the authentication unit 6 (step 102), the control unit 17a operates the ID writing unit 7 to shift to the ID registration mode.

When shifting to the ID registration mode, first, a timer is started in order to set the valid time of the ID registration mode (step 103), and then a reading error signal is output to the RFID reader / writer 6a of the authentication unit 6 If an error signal is not output, it is determined that a valid RFID tag 9 has been deceived (step 104). If the RFID tag 9 detected in step 104 is the first one, the ID writing unit 7 sets the start flag (step 105), and then shifts the RFID reader / writer 6a to the ID erasing mode for all registrations. The completed operation ID is erased (step 106).

Thereafter, the ID writing unit 7 shifts the RFID reader / writer 6a to the writing mode and writes the ID of the RFID tag 9 currently deceived as the operation ID (step 107).

The operation ID writing mode is continued until the timer is up (step 108), and then the operation mode is shifted to (step 109). Note that after the first RFID tag 9 is registered, the start flag is reset, and step 106 is not executed when the second and subsequent sheets are registered.

On the other hand, if the RFID tag 9 is not detected in step 101, the RFID tag 9 is awaiting authentication as a previous stage of the operation mode in the operation mode (step 101-1), and the RFID is detected (step 101-). 2) When either the operation tag 9B or the registration tag 9A is authenticated by the authentication unit 6 (step 101-3), the operation mode is shifted (step 109).

In the operation mode, first, when the transition of the trigger detection switch 14 to the ON state is detected (step 110), the motor 2 is driven (step 111) and waits for the trigger detection switch 14 to transition to OFF.

When the transition of the trigger detection switch 14 to OFF is detected in this state, an interval timer is set to measure the non-operation time (step 110-1), and the rotation of the motor 2 is stopped (step 110-2). ). As described above, the interval timer is for automatically resetting the operable flag because the chance of theft increases when the electric hand tool is left in a non-operating state for a long time. When the time is up (step 110-3), step 101-1 is executed to request another authentication operation.

DESCRIPTION OF SYMBOLS 1 Power supply source 2 Electric drive device 3 Processing front-end | tip part 4 Power supply detection part 5 ID storage part 6 Authentication part 7 ID writing part 8 Drive management part 9 RFID tag

Claims

A machining tip (3) driven by an electrical drive device (2) fed by a power supply source (1);
A power connection detection unit (4) for detecting connection to the power supply source (1);
An authentication unit (6) having a match with the registered ID stored in the ID storage unit (5) of the input authentication ID as an authentication establishment condition;
An ID writing unit (7) that writes the authentication ID input to the authentication unit (6) in the operating state to the ID storage unit (5);
A drive manager (8) for determining whether or not the electric drive device (2) can be driven in response to a drive request;
Comprising
The ID writing unit (7) starts operation upon authentication establishment in the authentication unit (6) within a predetermined time from the detection of power connection in the power connection detection unit (4), and the drive management unit (8) Enabling the electric drive device (2) to be driven on the condition that authentication is established when the ID writing unit (7) is inactive;
Electric hand tool.
The electric hand tool according to claim 1, wherein the ID writing unit (7) deletes all registered IDs except for the ID used for starting the operation and replaces the newly registered ID with a new registered ID.
The ID storage unit (5) stores an operation ID and a registration ID,
The electric hand tool according to claim 1, wherein the ID writing unit (7) starts operation upon establishment of authentication for the registration ID and writes an operation ID.
The authentication unit (6) is formed by an RFID authentication device,
The ID writing unit (7) sequentially registers the ID of the RFID tag (9) recognized by the authentication unit within a predetermined time in the ID storage unit (5) in an operating state. The electric hand tool according to any one of the above.
An electric hand tool that permits operation of a machining tip (3) driven by an electric drive device (2) fed from an electric power supply source (1) on condition that authentication is established in the RFID authentication device (6) An operation control method comprising:
Detecting a connection to the power supply source (1);
Transition to a new ID registration mode on condition that an authenticable RFID tag (9A) is detected when connected to the power supply source (1).
An operation control method for an electric hand tool.