TWI798276B - Portable tools and power tools - Google Patents

Abstract

Provide a tool and electric tool that the operator can easily notice the information even in a brighter working environment or a working environment with a higher noise level.

A tool 10, the handle 21 is held to be used, and it is used as a belt, is characterized in that it includes a vibration generating device 35 that generates vibrations in order to inform the state of the machine. Moreover, the vibration generating device 35 is preferably disposed inside the handle 21 . Furthermore, the vibration generator 35 is preferably disposed so as to vibrate in a direction substantially perpendicular to the axial direction of the grip 21 .

Description

Portable tools and power tools

The invention relates to a tool including a mechanism for informing the state of a machine and an electric tool.

Conventional power tools notify the state of the machine (such as the remaining amount of consumables or the occurrence of an error, etc.) by turning on and blinking an LED, or by making a buzzer sound (see, for example, Patent Document 1).

〔Patent Document〕

[Patent Document 1] Japanese Unexamined Patent Publication No. 2009-184075

However, when using the LED or the buzzer as before, there is a possibility that the operator may not notice the notification due to the working environment. For example, when it is an LED, there is a problem that it is difficult to know the status of the light in a relatively bright working environment such as outdoors. Also, when it is a buzzer, there is a problem that it is difficult to hear the sound in a working environment with a high noise level.

When the operator continues to work without noticing the notice, the work efficiency will decrease, or the risk of mechanical failure will increase. For example, even if it is notified that the remaining amount of consumables is insufficient, if the operator does not notice the notification, there is a possibility that the consumables will be exhausted in the middle of the process and the operation will be interrupted or reworked. Also, if the operator does not notice abnormal notifications such as high temperature of the machine or motor lock, the risk of machine failure may increase. Also, if the operator does not notice the decrease in the remaining battery capacity, the battery pack may be used in an over-discharged state, which may result in a decrease in battery life.

Here, the present invention makes it a subject to provide a tool and an electric tool that allow the operator to easily notice the information even in a brighter working environment or a working environment with a higher noise level.

The present invention was developed to solve the above-mentioned problems. It is a portable tool or an electric tool with a handle that is held for use. It is characterized in that it includes a vibration generating device that generates vibration in order to inform the state of the machine. [Invention effect]

As described above, the present invention includes a vibration generating device that generates vibrations in order to inform the state of the machine. Therefore, even in a brighter working environment or a working environment with a higher noise level, the operator can use the vibration of the vibration-generating device to pay attention to the notification of information. Also, by using the vibration, the worker can directly feel the sense of incongruity, so he can notice the notification sensually.

Embodiments of the present invention will be described with reference to the drawings. In addition, in the following description, the power tool 10 will be described as an example of a driving tool that injects a fastener (in this embodiment, a staple of the U-shape) from the injection port 20a. However, the driving tool is only one example of the electric tool 10 . The electric power tool 10 to which the present invention can be applied is at least as long as it is a portable electric power tool 10 that is used by holding the handle 21 , and the type of the electric power tool 10 is not particularly limited.

The electric tool 10 of this embodiment is covered with a case 11 as shown in FIG. 1 . The power tool 10 includes an output part 20 , a handle 21 , a nail box 23 , a motor housing part 24 and a battery assembly part 25 .

The output part 20 is a part for accommodating a driver (not shown) for driving out fasteners. The driver is slidable in the longitudinal direction of the output part 20 . The tip of the output part 20 is opened with an ejection port 20a, and the fastening member driven out to the front of the ejection port 20a is on standby. When the trigger 22 described later is operated and the driver slides in the direction of the injection port 20a, the fastener standing in front of the injection port 20a is driven out from the injection port 20a by the driver, and becomes driven into the material to be driven. .

The handle 21 is the rod-shaped part that the operator holds when using the power tool 10 . This handle 21 is connected so as to be roughly perpendicular to the output unit 20 . In detail, the handle 21 is connected to the rear position of the output portion 20 when viewing the output portion 20 in the driving direction of the fastener. Here, the handle 21 is provided with a trigger 22 for actuating the power tool 10 . This trigger 22 is arranged at the position where the index finger can be hooked after the operator holds the grip 21 . When the operator pulls the trigger 22 for operation, the micro switch 22a (refer to FIG. 2 ) built in the handle 21 becomes ON. When the micro switch 22a is turned ON, the electrical signal is transmitted to the control board 27, and the motor 24a is driven and controlled by the control board 27, so that the electric tool 10 is actuated, and the fastener is driven in.

Also, inside the handle 21, a vibration generating device that generates vibrations for notifying the state of the machine is disposed. The vibration generating device of this embodiment is constituted by attaching a counterweight to the rotating shaft of the vibration motor 35 . The structure of the counterweight is installed as a center of gravity offset with respect to the rotation axis of the vibrating motor 35. When the vibrating motor 35 rotates, the vibrating force of the counterweight is used to generate vibrations.

As shown by the arrow in FIG. 3 , the vibrating motor 35 is configured to vibrate in a direction approximately perpendicular to the axial direction of the handle 21 . In other words, the rotation axis of the vibration motor 35 is arranged roughly parallel to the axial direction of the handle 21 . With such a configuration, the vibration is easily transmitted to the hand holding the handle 21 .

The nail box 23 is used for filling fasteners. In this embodiment, it is possible to load the fastening fasteners into the nail box 23 in the form of rods. The magazine 23 is connected so as to be roughly perpendicular to the output unit 20 and arranged to be roughly parallel to the handle 21 . In detail, the nail magazine 23 is connected to the forward position of the output part 20 when viewing the output part 20 in the driving direction of the fastener. The tip of the magazine 23 is tied inside, communicates with the delivery part 20, and becomes capable of supplying fasteners to the tip of the delivery part 20 (near the injection port 20a).

The motor accommodating portion 24 is provided adjacent to the magazine 23, and accommodates the motor 24a as shown in FIG. 3 . The motor 24a is used as a driving source for the electric tool 10, and the rotation of the motor 24a is controlled by a control board 27 described later. In this embodiment, the motor 24a is used to rotate, and when the driver is driving in, the driver is returning to the standby position.

Furthermore, on the inner surface of the motor housing portion 24 (the surface facing the handle 21 ), there is provided a light guide portion 30 for guiding light from a light source 28 which will be described later. The light guiding part 30 is formed of transparent or semi-transparent resin, and is a member that diffuses the incident light inside while entering the light from the light source 28, and emits the light on the surface. With the light guide part 30, the light from the light source 28 is easily recognized by the operator.

The battery assembly part 25 is a part for attaching and detaching the battery pack 26 . The battery assembly part 25 is located at the lower end of the handle 21 (the end on the opposite side of the output part 20). In other words, the output unit 20 is connected to one end of the grip 21 , and the battery assembly unit 25 is connected to the other end.

Furthermore, in the present embodiment, the battery pack 26 is slidably attached to and detached from the lower surface of the battery assembly portion 25 . Although not shown in particular, the upper surface of the battery pack 26 is provided with a retractable latch body, and the latch system is engaged with the lower surface of the battery assembly part 25, whereby the battery pack 26 is mounted on the electric tool 10. superior. When the battery pack 26 is installed on the electric tool 10 , the battery pack 26 and the electric tool 10 are electrically connected, and the electric power stored in the battery pack 26 can be used by the electric tool 10 .

A control board 27 for controlling the operation of the electric tool 10 is built in the battery assembly part 25 . As shown in FIG. 3 , the surface of the control board 27 faces the handle 21 side, and the inner surface faces the battery pack 26 side. On the surface facing the handle 21 side, various electronic parts are assembled, for example, a light source 28 made of LED or a sound source made of a buzzer are assembled. Furthermore, terminals for electrical connection with the battery pack 26 are provided on the inner surface facing the battery pack 26 .

Furthermore, the light source 28 assembled on the above-mentioned control board 27 is controlled to be turned on in order to inform the state of the machine. In addition, the sound source assembled on the above-mentioned control board 27 is to be output and controlled in order to inform the state of the machine. Also, as mentioned above, the vibrating motor 35 vibrates to notify the state of the machine. In this way, the electric tool 10 of this embodiment becomes a plurality of notification mechanisms composed of the vibration motor 35, the light source 28 and the sound source, which can notify the state of the machine.

These plural notifying mechanisms are for notifying, for example, the state of the remaining amount of the fastener, the charging state of the battery pack 26, the temperature state of the battery pack 26, or the abnormal state of the machine. Moreover, the notification of the status of the remaining quantity of fasteners is the notification executed after it is detected that the remaining quantity of fasteners in the nail magazine 23 has decreased. In addition, the notification of the state of charge of the battery pack 26 is performed when it is detected that the remaining charge of the battery pack 26 has decreased. In addition, the notification of the temperature state of the battery pack 26 is the notification executed when the high temperature of the battery pack is detected. In addition, the notification of the abnormal state of the machine is the notification executed after the detection of a mechanical abnormality such as a high temperature of the machine or a lock of the motor 24a.

In this way, in this embodiment, a plurality of notification mechanisms are included, and a plurality of notification contents (remaining state of the fastener, charging state of the battery pack 26, and abnormal state of the machine) are included at the same time. In this aspect, it is also possible to automatically switch which of the plurality of notification means is used according to the content of the notification.

For example, as shown in Figure 4 (a), when the notification content is "A" (such as the notification of the remaining amount of the fastener), it can also be notified by lighting or flashing the light source 28, and the sound source and vibration motor 35 do not move. Also, when the notification content is "B" (such as the notification of the charging state of the battery pack 26), it is also possible to output the sound from the sound source to notify in addition to lighting or flashing the light source 28, and the vibration motor 35 does not work. . Also, when the notification content is "C" (such as the notification of the abnormal state of the machine), it is also possible to output the sound from the sound source in addition to the light or flashing light source 28, and to notify by vibrating the vibration motor 35.

In this way, if the notification mechanism corresponding to the notification content is different, the state of the machine can be grasped by which notification mechanism is activated. Moreover, the aspect shown in the above-mentioned Fig. 4 (a) is only an example, and of course the combination of the notification mechanism and the setting of the notification content can be set arbitrarily.

Also, when notifying the state of the machine, it is also possible to manually switch which of the plurality of notifying mechanisms is used by operating a switch or the like included on the main body of the electric tool 10 .

For example, as shown in FIG. 4( b ), the operator may switch whether to use the light source 28 , the sound source, and the vibration motor 35 for notification. At this time, a switch operable to switch ON and OFF of the notification of the light source 28, the sound source and the vibration motor 35 may also be provided. For example, when the light source 28 and the sound source are turned on and the vibration motor 35 is turned off, when the electric tool 10 notifies the state of a certain machine, the light source 28 and the sound source are used to inform, and the vibration motor 35 is not activated.

In this way, when manually switching whether to use any of the plurality of notification mechanisms, the notification mechanism can be selected according to the preference of the operator or the work environment. Moreover, in the above example shown in Figure 4 (b), ON‧OFF can be selected for all notification mechanisms, but the present invention is not limited thereto, and ON‧OFF can be selected for only a part of notification mechanisms . For example, the light source 28 and the sound source may always be ON, and only the vibration motor 35 may be switched ON‧OFF.

Furthermore, in the above-mentioned embodiment, the vibration motor 35 or the sound source is built in the electric power tool 10 . However, the embodiment of the present invention is not limited thereto, and the vibration motor 35 or the sound source may also be built in the external terminal 40 wirelessly connected to the electric tool 10 . That is, as shown in FIG. 4(c), use a Bluetooth (registered trademark) interface or the like to wirelessly connect an external terminal 40 such as a mobile phone with a built-in vibration motor 35 or a sound source to the electric tool 10 . Moreover, when the state of the machine is notified, a wireless output signal is sent from the electric tool 10 to the external terminal 40 , and the external terminal 40 receiving the signal is the vibration motor 35 that vibrates the external terminal 40 . Also, the external terminal 40 receiving the signal may output sound from the sound source of the external terminal 40 in conjunction with the vibration, or instead of the vibration. According to this structure, by vibrating the external terminal 40 around the operator (or by outputting sound from the sound source of the external terminal 40 ), the state of the machine can be notified.

As described above, according to the present embodiment, a vibration generating device (vibration motor 35 ) that vibrates to notify the state of the machine is included. When according to this structure, even in the environment where it is difficult to notice the notification made by the light source 28 or the sound source, that is, even in a brighter work environment or a work environment with a higher noise level, the operator can use the The vibration of the vibration generating device pays attention to the notification of information. Also, by using the vibration, the operator has a sense of sensory violation, so he can pay attention to the sensory notification.

Also, since the vibration generating device is disposed inside the grip 21, the vibration can be directly applied to the operator's hand, and the operator can easily notice the notification.

Also, the configuration makes the vibration generating device vibrate in a direction roughly perpendicular to the axial direction of the handle 21, whereby the vibration is easily transmitted to the hand holding the handle 21, and the operator can easily notice the notification. .

Furthermore, it is preferable that the vibration generating device is arranged inside the handle 21 that contacts the palm of the operator when the operator holds the handle 21 . By arranging the inner side of the position where the palm is in contact with, compared with the inner side of the position where the fingertip is in contact, the operator can easily notice the vibration of the vibration generating device. For example, as shown in FIG. 2, when the axial direction of the handle 21 is roughly perpendicular to the output direction of the electric tool 10 (the direction in which the fastener is driven out), when viewing the output direction of the electric tool 10, the vibration motor 35 is arranged in the It is closer to the front side than the center of the handle 21, so that the vibration generated by the vibration motor 35 can be easily transmitted to the operator.

In addition, it includes a light source 28 that is controlled to be turned on in order to inform the mechanical state, and a sound source that is output and controlled to inform the mechanical state, and a plurality of notification mechanisms composed of at least two of the vibration motor 35, the light source 28, and the sound source, Can inform the state of the machine. According to this configuration, by using plural notification means, the operator can easily notice the notification.

Moreover, in the above-mentioned embodiment, although the notification mechanism includes three of the vibration motor 35, the light source 28 and the sound source, the present invention is not limited thereto, and may not include one of the light source 28 or the sound source. Also, a notification mechanism other than the above three may be included. Also, in the above-mentioned embodiment, although the vibration generating device (vibration motor 35) is provided on the electric power tool 10 using the motor 24a as the driving source, the present invention is not limited thereto, and may be driven by a different driving force. Install a vibration generating device on the tool actuated by the source. For example, Fig. 5 shows a pneumatic tool 45 of Modification 1. The pneumatic tool 45 shown in this modified example 1 is a nailing machine that uses compressed air to drive the driving mechanism. If such a pneumatic tool 45 is equipped with a vibration generating device, for example, the vibration generating device can be used to notify that the remaining amount of consumables such as fasteners has decreased, or that the tool is abnormal, or that the safety device has been activated, etc. . Moreover, in the pneumatic tool 45, the handle 21 is often used as a pressure vessel, so the vibration motor 35 is preferably arranged near the handle 21 (for example, straddling the boundary between the handle 21 and the output part 20). Also, the pneumatic tool 45 generally does not use electricity. Therefore, although it is necessary to build a battery for driving the vibration motor 35, the vibration motor 35 for transmitting information is very small and sufficient, so a small battery is sufficient, and the vibration motor 35 and the battery can be mounted. generating device. In this way, even if the tool does not use electricity, it can also be equipped with a vibration generating device. In addition, Fig. 6 shows a gas combustion type nailing machine 46 according to Modification 2. The tool shown in this modified example 2 is a nailer driven by the combustion pressure of gas to drive the driving mechanism. If a vibration generating device is installed on this gas burning nailing machine 46, for example, the vibration generating device can be used to notify that the remaining amount of consumables such as fasteners has decreased, or that the remaining amount of the battery has decreased, or that the tool is abnormal. notification, notification that the safety device has been activated, etc. Moreover, in the gas combustion type nailing machine 46, a battery for driving a fan or an ignition device for stirring fuel is mounted, so an additional battery for driving the vibration motor 35 is unnecessary. Therefore, the vibration generating device can be mounted without increasing the size of the tool. Also, in the above-mentioned embodiment, although an example in which a vibration generating device (vibration motor 35) is provided on a tool using consumables such as fasteners has been described, the present invention is not limited thereto, and may be used without On the tools of the consumables, a vibration generating device is installed. For example, Fig. 7 shows an impact driver 47 of Modification 3. The impact driver 47 of this modified example 3 converts the rotational energy of the motor 24a into knocking force and rotational force, and transmits it to the driver head 48 installed on the tip of the output part 20, thereby locking the screw or bolt. As shown in the impact driver 47, even if it is a tool that does not use consumables such as fasteners, by installing a vibration generating device, it is possible, for example, to notify that the tool is abnormal or that the safety device has been activated.

10‧‧‧Power Tools 11‧‧‧Shell 20‧‧‧Output Department 20a‧‧‧Injection port 21‧‧‧Grip 22‧‧‧Trigger 22a‧‧‧micro switch 23‧‧‧nail box 24‧‧‧Motor Containment Department 24a‧‧‧motor 25‧‧‧Battery Assembly Department 26‧‧‧Battery pack 27‧‧‧Control board 28‧‧‧Light source (inform agency) 30‧‧‧light guide 35‧‧‧Vibration motor (informing mechanism, vibration generating device) 40‧‧‧External terminal 45‧‧‧Pneumatic tools 46‧‧‧Gas burning nailing machine 47‧‧‧Impact driver 48‧‧‧drive head

Figure 1 is a perspective view of an electric tool. Figure 2 is a sectional perspective view of the electric tool. Figure 3 is a sectional view of the electric tool. Figure 4 (a) is a diagram showing the combination of the notification mechanism when switching the notification mechanism corresponding to the content of the notification; Figure 4 (b) is a diagram showing the combination of settings when the notification mechanism can be manually switched; Figure 4 ( c) is a diagram showing the system structure when the built-in vibration motor reaches the external terminal. Fig. 5 is a side view of a pneumatic tool according to Modification 1. Fig. 6 is a side view of the gas combustion nailing machine of modification 2. Fig. 7 is an external view of the impact driver of Modification 3.

10: Power tools

11: shell

20: Output section

20a: Injection port

21: Grip

22: Trigger

22a: micro switch

23: Nail box

24: Motor Containment Department

24a: Motor

25:Battery Assembly Department

26: battery pack

27: Control substrate

28: light source

30: Light guide part

35: Vibration motor

Claims (12)

A portable tool, the handle is held for use, characterized in that it includes a vibration generating device that generates vibrations to inform the state of the machine; and at least includes a device that is controlled by lighting to inform the state of the machine The light source, or at least one of the sound sources that output the control sound in order to inform the state of the machine; the state of the machine can be informed by at least two of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source; corresponding to different notification contents , the combinations of the aforementioned vibration generating device, the aforementioned light source and the aforementioned sound source are different, and in each of the different combinations, at least two of the aforementioned vibration generating device, the aforementioned light source and the aforementioned sound source are activated. The carrying tool described in Claim 1 of the patent application, wherein the aforementioned vibration generating device is arranged inside the aforementioned handle. The carrying tool as described in claim 1 or 2 of the patent claims, wherein the vibration generating device is configured to vibrate in a direction perpendicular to the axial direction of the handle. In the portable tool described in Claim 1 of the patent application, at least one of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source is manually switched. In the portable tool described in item 1 of the scope of the patent application, other vibration generating devices are built in an external terminal wirelessly connected to the aforementioned tool. The portable tool as described in claim 1 or 2 of the patent application, wherein the aforementioned vibration generating device generates vibration by the rotation of a motor. An electric tool, the handle of which is held to be used, and which is used for carrying, It is characterized in that it includes a vibration generating device that generates vibrations to inform the state of the machine; at least includes a light source that is controlled by lighting to inform the state of the machine, or outputs a control sound to inform the state of the machine At least one of the sound sources can use at least two of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source to inform the state of the machine; corresponding to different notification contents, the combination of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source is are different, and in different combinations, at least two of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source are activated. The power tool as described in claim 7 of the scope of the patent application, wherein the aforementioned vibration generating device is arranged inside the aforementioned handle. The electric tool as described in claim 7 or 8 of the patent claims, wherein the aforementioned vibration generating device is configured to vibrate in a direction perpendicular to the axial direction of the aforementioned grip. The electric tool as described in item 7 of the scope of the patent application, wherein at least one of the aforementioned vibration generating device, the aforementioned light source, and the aforementioned sound source is switched manually. The electric tool as described in item 7 of the scope of the patent application, wherein other vibration generating devices are built in an external terminal wirelessly connected to the aforementioned electric tool. The power tool as described in claim 7 or 8 of the patent application, wherein the aforementioned vibration generating device generates vibration by the rotation of the motor.

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