JP2015169072A - air compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology that enables a worker to remotely control an air compressor at a site where the worker conducts the operation without moving to a location where the air compressor is installed.SOLUTION: An air compressor 101 includes: a body part 100 which supplies compressed-air to an air tool; and an operation part 6 for remotely operating the body part 100. The operation part 6 includes an operation part side communication part which transmits/receives a radio signal to/from the body part 100. The body part 100 includes: a body part side communication part which transmits/receives a radio signal to/from the operation part 6; and an attachment part to which the operation part 6 is attached or detached.

Description

  The present invention relates to an air compressor that operates by driving a motor.

  At work sites such as construction sites, pneumatic tools using a motor or compressed air as driving energy are widely used to perform operations such as cutting, nailing and screwing. Examples of main ones using compressed air as a driving source include an air impact driver, a nailing machine, and a screw driving machine. And the pneumatic tool which uses compressed air as a drive source in a work site is supplied with compressed air from an air compressor.

  In general, an air compressor is configured such that the rotational motion of a motor is converted to the reciprocating motion of a piston in a cylinder via a crankshaft, and the air sucked from the intake valve of the cylinder is compressed by the reciprocating motion of the piston. . Then, the compressed air compressed in the cylinder is discharged from the exhaust valve of the cylinder through the pipe to the air tank and stored in the air tank.

  In addition, portable air compressors are widely used. For example, a reciprocating air compressor as described in Patent Document 1 is used.

JP 2004-300996 A

  Portable air compressors are relatively often used at construction sites. In some cases, the air compressor is placed in the vicinity of a lower floor or a temporary power source, and an air tool is used on the upper floor or the like. Therefore, the air compressor may be installed at a place several meters to several tens of meters away from a place where an operator actually performs work. In the air compressor described in Patent Document 1, when working under different conditions depending on the work material, when changing the driving mode of the air compressor, etc., when a restart operation or the like occurs, the operator There was a problem that the air compressor could not be operated unless the work at the site was interrupted and moved to the place where the air compressor was installed. Moreover, since an air compressor is installed in a place away from the worker, there is a problem that measures such as theft are not sufficient.

  An object of the present invention is to provide a technique for enabling an air compressor to be remotely operated on the spot where an operator is working without moving to the place where the air compressor is installed. Moreover, it is providing the technique which consists of a structure which contributes to prevention of theft.

  Of the inventions disclosed in the present application, the outline of typical ones will be briefly described as follows.

  One embodiment of the present invention is an air compressor having a main body part for supplying compressed air to a pneumatic tool, and an operation part for remotely operating the main body part, wherein the operation part comprises the main body An operation unit side communication unit that transmits and receives radio signals to and from the unit. Moreover, the said main-body part has a main-body part side communication part which transmits / receives a radio signal between the said operation parts, and the attaching part to which the said operation part is attached or detached.

  Among the inventions disclosed in the present application, effects obtained by typical ones will be briefly described as follows.

  According to the representative embodiment of the present invention, the operator can remotely operate the air compressor at the place where the worker is working without moving to the place where the air compressor is installed.

It is a perspective view which shows an example of the external appearance of the air compressor in Embodiment 1 of this invention. It is sectional drawing which shows an example of the structure by the side of the plane of the air compressor shown in FIG. It is a side view which shows an example of the structure of the air compressor shown in FIG. It is a side view which shows an example of the structure of the operation part attached to the air compressor shown in FIG. 1, and its periphery. It is a figure which shows the example of the password input screen displayed on the operation part in Embodiment 1 of this invention. It is a figure which shows the example of the driving | operation switching screen displayed on the operation part in Embodiment 1 of this invention. It is a figure which shows the example of the pressure display screen displayed on the operation part in Embodiment 1 of this invention. It is sectional drawing which shows an example of the structure by the side of the plane of the air compressor in Embodiment 2 of this invention. It is a figure which shows the example of the pressure display screen displayed on the operation part in Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  The air compressor according to Embodiment 1 of the present invention includes a main body that supplies compressed air to an air tool, and an operation unit that is a dedicated terminal for remotely operating the main body. In addition, the operation unit receives an input of conditions related to the used air tool (such as an air extraction pressure corresponding to the used air tool). In addition, wireless signals are transmitted and received between the operation unit side communication unit of the operation unit and the main body unit side communication unit of the main unit. And main body information, such as an operation mode and the air pressure in a tank, is transmitted to the operation part in the vicinity of an operator. Accordingly, the state of the air compressor can be confirmed without moving to the place where the main body of the air compressor is installed, and the air compressor can be remotely operated.

  The embodiment of the present invention may be applied to a power supply machine that supplies power to an electric tool, such as a generator or a transformer, instead of the air compressor described below.

[Embodiment 1]
A first embodiment of the present invention will be described with reference to FIGS.

  The air compressor 101 in Embodiment 1 shown in FIGS. 1-3 has the main-body part 100 which supplies compressed air to an air tool, and the operation part 6 which is an exclusive terminal for operating the main-body part 100 remotely. .

  The main body 100 includes a motor 2 that is a driving source, a compression mechanism 3 that is driven by the motor 2 to generate compressed air, a tank 4 that stores compressed air, and a control board 5 that controls the operation of the motor 2. , A compressed air outlet 11 for taking out the compressed air stored in the tank 4, a pressure reducing valve 12 that is a mechanism for adjusting the pressure to an air outlet pressure suitable for driving a pneumatic tool, and an air compressor It has a handle 14 for gripping and transporting, and a mount member 7 for supporting the air compressor 101 with respect to the floor surface.

  The tank unit 4 includes two tanks 41 and a frame (not shown) that couples the two tanks 41. The handle 14 is fixed to a frame connecting the two tanks 41 of the tank unit 4. The cover 8 is fixed to the handle 14.

  The operation unit 6 includes a touch panel 61 and an operation unit side communication unit (described later, FIG. 4). The operation unit 6 includes a storage unit (not shown) on an operation unit control circuit (not shown). A power switch 15 for controlling the main power supply of the main body is provided near the operation unit 6 of the main body 100.

  The touch panel 61 performs screen display. The touch panel 61 receives a touch operation from the user. Specifically, the touch panel 61 detects a touch operation on the screen display area, and the operation unit 6 executes a process corresponding to the position where the touch operation is received.

  The power switch 15 turns on and off the commercial AC power supplied from the power cord 16 to the air compressor 101. When the operation unit 6 is attached to the main body unit 100 and the power switch 15 receives an operation and the commercial AC power is turned on, power is supplied to the operation unit 6, the control board 5, the motor 2, and the like.

  The motor 2 includes a rotor 21, a stator 22, and a rotating shaft 23. The rotation operation is controlled by the control board 5. A cooling fan 24 is attached to one end of the rotating shaft 23.

  The compression mechanism unit 3 includes a crankcase 31, a low pressure side connecting rod 34b having a low pressure side piston 33b, a high pressure side connecting rod 34a having a high pressure side piston 33a, a low pressure side cylinder 35b, and a high pressure side cylinder 35a.

  The low pressure side compression chamber 36b is formed by the low pressure side piston 33b and the low pressure side cylinder 35b. Further, the high pressure side piston 33a and the high pressure side cylinder 35a form a high pressure side compression chamber 36a.

  An intake valve (not shown) for letting air flow into the high-pressure side compression chamber 36a and the low-pressure side compression chamber 36b and the compressed air flow out to the upper wall portions of the high-pressure side compression chamber 36a and the low-pressure side compression chamber 36b. And a discharge valve (not shown). The intake valve and the discharge valve have a function as a check valve that allows air to flow only in one direction.

  An intake passage (not shown) is connected to the intake valve side of the low-pressure side compression chamber 36b, and the discharge valve side of the low-pressure side compression chamber 36b and the intake valve side of the high-pressure side compression chamber 36a are connected by a pipe 9a. The discharge valve side of the high-pressure side compression chamber 36a is communicated with the tank portion 4 by a pipe 9b.

  Inside the low pressure side connecting rod 34b and the high pressure side connecting rod 34a, a low pressure side crank arm 37b and a high pressure side crank arm 37a are arranged via bearings 37, respectively. The low-pressure side crank arm 37b and the high-pressure side crank arm 37a are eccentrically attached to the rotary shaft 23, and convert the rotary motion of the rotary shaft 23 into the reciprocating motion of the low-pressure side piston 33b and the high-pressure side piston 33a. The rotating shaft 23 is provided with a balancer 38 for canceling the unbalanced load of the crank arm and piston. The compression mechanism unit 3 is elastically coupled to a frame (not illustrated) that couples the two tanks 41 of the tank unit 4 via an elastic member (not illustrated).

  The tank unit 4 for storing compressed air is configured by, for example, connecting a pair of cylindrical tanks 41 arranged in parallel by a frame (not shown). The tank unit 4 is connected to the compression mechanism unit 3 through a pipe 9c. In addition, a safety valve (not shown) is attached to a part of the tank unit 4, and when the air pressure in the tank unit 4 becomes abnormally high, a part of the compressed air is discharged to the outside. .

  The tank portion 4 is provided with a pair of compressed air outlets 11, and an air tool (not shown) such as a nailing machine is connected to each of the compressed air outlets 11 via a hose.

  A pressure reducing valve 12 is provided between the compressed air outlet 11 side and the tank part 4, and a function of reducing the air pressure inside the tank part 4 to an air extracting pressure suitable for driving a pneumatic tool and taking it out. have.

  A pressure gauge 13 is attached in the vicinity of the compressed air outlet 11 so that the air extraction pressure taken out from the compressed air outlet 11 can be monitored.

  Next, the production | generation process of the compressed air by the air compressor 101 is demonstrated roughly.

  The rotational motion of the motor 2 is transmitted to the rotary shaft 23, and rotates the low-pressure side crank arm 37b and the high-pressure side crank arm 37a. Further, when the low-pressure side crank arm 37b rotates eccentrically, it is converted into a reciprocating motion of the low-pressure side piston 33b inscribed in the low-pressure side cylinder 35b. Similarly, when the high-pressure side crank arm 37a is eccentrically rotated, the high-pressure side piston 33a inscribed in the high-pressure side cylinder 35a is converted into a reciprocating motion.

  In the suction process in which the high-pressure side piston 33a and the low-pressure side piston 33b move downward from the top dead center to the bottom dead center in the high-pressure side cylinder 35a and the low-pressure side cylinder 35b, the external air flows into the high-pressure side compression chamber 36a and the low-pressure side compression chamber 36b. It is sucked in. On the other hand, in the compression process in which the high pressure side piston 33a and the low pressure side piston 33b move upward from the bottom dead center to the top dead center in the high pressure side cylinder 35a and the low pressure side cylinder 35b, the high pressure side piston 33a and the low pressure side piston 33b are high pressure. The air in the side compression chamber 36a and the low-pressure side compression chamber 36b is compressed to generate compressed air.

  When the low pressure side piston 33b is at the top dead center, the high pressure side piston 33a is at the bottom dead center. When the low pressure side piston 33b is at the bottom dead center, the high pressure side piston 33a is at the top dead center. That is, when the low pressure side is the compression process, the high pressure side is the intake process, and when the low pressure side is the intake process, the high pressure side is the compression process. The low-pressure side compression chamber 36b, the high-pressure side compression chamber 36a, and the tank portion 4 are connected via a pipe 9c.

  First, air flowing in from an intake passage (not shown) is compressed to about 0.7 Mpa in the low-pressure side compression chamber 36b. Next, the compressed air compressed in the low-pressure side compression chamber 36 b is compressed to about 4.5 Mpa in the high-pressure side compression chamber 36 a and discharged to the tank unit 4. By repeating the above steps, predetermined compressed air is stored in the tank portion 4. The air compressor 101 that drives a pneumatic tool or the like increases the pressure by the two-stage compression process as described above.

  Here, the compression mechanism part 3 vibrates due to the reciprocating motion of the high pressure side piston 33a and the low pressure side piston 33b described above. And the vibration of the compression mechanism part 3 is transmitted to the tank part 4, and the whole air compressor 101 vibrates. And the four mount members 7 which consist of an elastic body support the air compressor 101, and the transmission of the vibration to a floor surface is reduced. The vibration of the compression mechanism unit 3 is also transmitted to the operation unit 6 through the cover 8.

  In the first embodiment, as shown in FIG. 4, a mounting portion 81 to which the operation portion 6 is attached and detached is formed on a part of the upper surface of the cover 8 (a region above the control board 5).

  Further, a pair of holding portions 90 that are elastic members (for example, rubber and sponge) are attached to face each other in the longitudinal direction of the attachment portion 81. Specifically, the fitting portion 91 included in the holding portion 90 is fitted to the cover 8 in a state where the fitting portion 91 is inserted into the cover 8 through a hole 82 formed in the bottom surface of the attachment portion 81. As a result, the holding portion 90 is attached to the attachment portion 81. Note that a part of the holding portion 90 may be formed of an elastic member. For example, the fitting part 91 may be formed of an elastic member.

  The nail | claw part 93 which each holding | maintenance part 90 has is elastically deformed when the operation part 6 is pressed, and will be in the state which each side of the operation part 6 contacted the side part 92 of each holding | maintenance part 90. Then, the nail | claw part 93 returns to an original form with a restoring force. After the claw portion 93 is elastically deformed, the operation portion 6 is detachably held by the holding portion 90 by returning to the original form by a restoring force. The operation unit 6 is held by the holding unit 90 with the touch panel 61 facing upward.

  Since the operation unit 6 is held by the holding unit 90 of the elastic member, the vibration transmitted to the operation unit 6 is absorbed by the holding unit 90. Thereby, the vibration transmitted to the operation unit 6 is reduced, and the possibility that the operation unit 6 is broken due to the vibration can be reduced. The pair of holding portions 90 may be attached to face each other in the short direction of the attachment portion 81. Further, the holding portion 90 may be attached so as to surround the inner periphery of the attachment portion 81.

  Further, as shown in FIG. 4, an attachment portion cover 83 that covers the upper portion of the attachment portion 81 is provided above the attachment portion 81 so as to be openable and closable. The attachment portion cover 83 is a transparent body. Thus, even when the attachment portion cover 83 covers the upper portion of the attachment portion 81 (the attachment portion cover 83 is closed), the operator is displayed on the touch panel 61 of the operation portion 6 attached to the attachment portion 81. Information can be visually recognized. Note that when the attachment portion cover 83 does not cover the attachment portion 81 (the attachment portion cover 83 is open), the operation portion 6 is detached from the attachment portion 81.

  The main body side communication unit 70 is provided on the control board 5. The main body side communication unit 70 transmits and receives radio signals to and from the operation unit 6. The main body side communication unit 70 includes a transmission / reception unit 70a in which an antenna for transmitting / receiving a radio signal is formed. The main body side communication unit 70 and the transmission / reception unit 70 a are electrically connected by a connection cable 71. The wireless signal received by the transmitting / receiving unit 70a is input to the main body unit side communication unit 70 via the connection cable. A radio signal output from the main body unit side communication unit 70 is transmitted from the transmission / reception unit 70a.

  Note that the transmission / reception unit 70 a may be mounted on the main body unit side communication unit 70. Further, the transmission / reception unit 70 a may be provided inside the handle unit 14. Further, the transmission / reception unit 70 a may be attached so as to be exposed from the handle unit 14. Furthermore, the main body unit side communication unit 70 may be provided at a position where the influence of noise is small. Specifically, the main body unit side communication unit 70 may be provided at a position away from the power source (not shown) of the main body unit 100 to the rectifier circuit (not shown). The main body side communication unit 70 may be provided at a position away from the power factor correction circuit (not shown), the inverter circuit (not shown), or the motor 2.

  The operation unit 6 includes an operation unit side communication unit 200. The operation unit side communication unit 200 transmits and receives radio signals to and from the main body unit 100. As a result, wireless signals are transmitted and received between the operation unit 6 and the main body unit 100 via wireless communication. Here, the wireless communication can adopt any existing wireless communication standard / means. For example, Bluetooth (registered trademark), wireless LAN standard, 3G line of mobile phone network, infrared, Zigbee (Registered trademark), analog wireless communication, and the like. Note that the operation unit 6 and the main unit 100 may communicate with each other via wired communication.

  The operation unit 6 is supplied with power from the main body unit 100 while being attached to the attachment unit 81. The attachment portion 81 is provided with a power supply portion (not shown). The operation unit 6 is provided with a power supply unit (not shown). Then, power is supplied from the main body unit 100 to the power source (rechargeable battery) of the operation unit 6 by contacting the power supply unit of the attachment unit 81 and the power supplied unit of the operation unit 6. And the power supply of the operation part 6 is charged by supplying electric power from the electric power supply part of the main-body part 100. FIG. Note that the power source of the operation unit 6 may be charged by being supplied from the main body unit 100 in a non-contact manner while being attached to the attachment unit 81. By supplying electric power in a non-contact manner, the power supplied part and the power supplying part become unnecessary, and dust does not adhere to the power supplied part and the power supplying part. Moreover, you may make it operate the operation part 6 with the electric power supplied from the battery inserted in self.

  When using the air compressor 101 of the present invention, the power cord 16 is plugged into a commercial power outlet and the operation unit 6 is attached to the attachment unit 81, or is removed from the main body and carried by the operator Then, an input for turning on the power switch 15 is received. When an input for turning on the power switch 15 is received, a password input screen is displayed on the touch panel 61 as shown in FIG.

  As shown in FIG. 5, a plurality of input buttons 61a for accepting password input are displayed on the password input screen. When the input button 61 a receives an input from the operator and a password is input, the operation unit side communication unit 200 transmits the input password to the main body unit 100.

  The main body unit side communication unit 70 receives the password transmitted from the operation unit side communication unit 200. The control board 5 collates the password received by the operation unit side communication unit 200 with the password stored in the storage unit (not shown). When the control board 5 determines that the input password matches the password stored in the storage unit, the control board 5 has the password that the air compressor 101 is stopped and the operation to the air compressor 101 is locked. Release the locked state. Thereby, the operation of the air compressor 101 is started. Further, the main body side communication unit 70 transmits a wireless signal indicating that the password has been normally input to the operation unit 6.

  When the operation unit side communication unit 200 receives a wireless signal indicating that the password transmitted from the main body unit side communication unit 70 has been normally input, the operation unit 6 displays the screen displayed on the touch panel 61 in FIG. Switch to the operation switching screen shown.

  As shown in FIG. 6, the operation switching screen includes an ON button 61 b that receives an input for starting the air compressor 101, an OFF button 61 c that receives an input for stopping the air compressor 101, and the operation of the air compressor 101. A mode selection button 61d for receiving an input for selecting a mode (for example, a normal operation mode or a silent mode in which noise is reduced by reducing the rotation speed of the motor 2) is displayed.

  When the ON button 61b receives an input from the operator, the operation unit 6 generates a drive request signal for driving the motor of the main body unit 100. Then, the operation unit side communication unit 200 transmits the generated drive request signal to the main body unit 100. When the main body side communication unit 70 receives the drive request signal transmitted from the operation unit 6, the control board 5 drives the motor 2.

  When the OFF button 61c receives an input from the operator, the operation unit 6 generates a stop request signal for stopping the driving of the motor 2 of the main body unit 100. Then, the operation unit side communication unit 200 transmits the generated stop request signal to the main body unit 100. When the main body side communication unit 70 receives the stop request signal transmitted from the operation unit 6, the control board 5 stops the motor 2.

  When the motor 2 of the air compressor 101 starts driving, the main body side communication unit 70 transmits the air pressure in the tank 41 to the operation unit 6. In addition, the main body side communication unit 70 transmits an air extraction pressure corresponding to the type of air tool used to the operation unit 6.

  The operation unit 6 receives the air pressure and the air extraction pressure transmitted from the main body unit 100. And the operation part 6 displays the pressure display screen shown in FIG. 7 on the touch panel 61 based on the received information.

  As shown in FIG. 7, the pressure display screen displays an ON button 61 b that receives an input for starting the air compressor 101, an OFF button 61 c that receives an input for stopping the air compressor 101, and the air pressure in the tank 41. An air pressure indicator 61e to be displayed and an air extraction pressure display area 61f are displayed.

  Here, by operating the pressure reducing valve 12, the air extraction pressure is adjusted according to the type of the air tool used. Therefore, when the pressure reducing valve 12 is operated, the main body side communication unit 70 transmits the adjusted air extraction pressure to the operation unit 6. In the air extraction pressure display area 61f of the touch panel 61, the adjusted air extraction pressure is displayed. Thereafter, an operation using an air tool is performed by connecting an air tool to the compressed air outlet 11.

  The air pressure displayed on the air pressure indicator 61e may be digitally displayed as a numerical value. Further, the air pressure may be displayed as a bar graph having a fine scale interval (for example, a bar graph having 1 scale at 10 atm).

  After the work is completed, the power switch 15 of the operation unit 6 receives an input to turn off from the worker. When receiving an input for turning off the power switch 15, the operation unit 6 generates a power-off request signal for turning off the power and transmits the power-off request signal to the main body unit 100. When the main body side communication unit 70 receives the power-off request signal, the control board 5 enters the password lock state in which the operation of the air compressor 101 is stopped for the main body 100 and the operation to the air compressor 101 is locked. And switch. The control board 5 calculates the distance from the main body unit 100 to the operation unit 6 at predetermined intervals. When determining that the distance from the control board 5 to the operation unit 6 from the main body 100 is equal to or greater than a predetermined distance, the control board 5 switches the main body 100 to the password lock state.

  After switching to the password lock state, the operator can bring back the operation unit 6, so that only the owner of the operation unit 6 can operate the air compressor 101, thereby improving the anti-theft effect of the air compressor 101. Will be able to. In addition, there is an advantage that the operation unit 6 is larger and less likely to be lost than a key for driving the air compressor 101 that has been conventionally used.

  Further, the touch panel 61 may display the time, the operation method of the air compressor 101 and the air tool, the power consumption of the air compressor 101, the noise value generated by the air compressor 101, and the like. Thereby, useful information for an operator can be provided.

  In addition, the cumulative driving time of the air compressor 101 and the use status of the compressed air may be stored in the storage device of the air compressor 101, and the maintenance time of the air compressor 101 may be displayed on the touch panel 61.

<Effect of Embodiment 1>
According to the first embodiment described above, the operation unit 6 includes the operation unit side communication unit 200 that transmits and receives radio signals to and from the main body unit 100, and the main body unit 100 communicates with the operation unit 6. By having the main body side communication unit 70 for transmitting and receiving wireless signals, the operator can remotely operate the air compressor 101 on the spot where the operator is working without moving to the place where the air compressor 101 is installed. It becomes like this. Furthermore, since the main body 100 has the attachment portion 81 to which the operation portion 6 is attached and detached, the operator carries the operation portion 6 removed from the attachment portion 81, so that the air compressor 101 is a person other than the operator. Can be prevented from being used. And possibility that the air compressor 101 will be stolen can be reduced.

  In addition, since the operation unit 6 has a touch panel 61 that displays a screen and receives a touch operation from the user, the worker is working without moving to the place where the air compressor 101 is installed. It becomes possible to check the state of the air compressor 101 in the field and to remotely control the air compressor 101.

  In addition, since the attachment portion 81 to which the operation portion 6 is attached and detached is formed on a part of the upper surface of the main body portion 100, the operation portion 6 can be easily attached and detached from the attachment portion 81. Further, it is easy to confirm information displayed on the operation unit 6 in a state where the operation unit 6 is attached to the attachment unit 81.

  Further, since the attachment portion 81 includes the elastic member holding portion 90 that detachably holds the operation portion 6, vibration transmitted from the main body portion 100 to the operation portion 6 attached to the holding portion 90 can be reduced. It becomes like this. And possibility that the operation part 6 will fail by transmitting a vibration can be reduced. Since the air compressor 101 has a lot of vibration generated during driving, it is particularly effective to have the holding portion 90 of an elastic member.

  In addition, by having the attachment portion cover 83 that covers the upper portion of the attachment portion 81, dust can be prevented from entering the attachment portion 81. Here, since the air compressor 101 is often used by being brought into a place where much dust is generated, it is particularly effective to have an attachment portion cover 83 that covers the upper portion of the attachment portion 81. Further, since the attachment portion cover 83 is a transparent body, the information displayed on the touch panel 61 of the operation portion 6 can be visually recognized even when the attachment portion cover 83 covers the upper portion of the attachment portion 81.

[Embodiment 2]
Hereinafter, the second embodiment of the present invention will be described with reference to FIGS. 8 and 9 mainly on the differences from the first embodiment. First, as shown in FIG. 8, the second embodiment is different from the first embodiment in that the main body portion of the second embodiment has a small pressure adjusting motor 17 that can drive the pressure reducing valve 12. This is the point. Then, the pressure adjustment motor 17 is controlled according to the input received from the pressure display screen shown in FIG. 9 and the pressure reducing valve 12 is driven to adjust the air extraction pressure.

  The pressure adjusting motor 17 is connected to the control board 5. In response to an input for the operation unit 6 to change the air extraction pressure, the control board 5 controls the pressure adjusting motor 17 to adjust the air extraction pressure to the input air extraction pressure.

  As shown in FIG. 9, a pneumatic tool selection button 61h for selecting a pneumatic tool to be used is displayed on the pressure display screen, and a working pressure range 61g is superimposed on the pneumatic pressure indicator.

  In this case, the pneumatic tool used for work is selected by the pneumatic tool selection button 61h receiving input. The operation unit 6 stores the working pressure range of each pneumatic tool, and displays the working pressure range 61g of the selected pneumatic tool. Further, the operation unit 6 generates an air extraction pressure adjustment signal for adjusting the air extraction pressure to the air pressure of the selected air tool, and transmits the air extraction pressure adjustment signal to the main body unit 100. When the main body side communication unit 70 receives the air extraction pressure adjustment signal, the control board 5 controls the pressure adjustment motor 17 and drives the pressure reducing valve 12 based on the received air extraction pressure adjustment signal. Adjust the air extraction pressure.

  Note that the touch panel 61 invalidates an input for changing to a working pressure range other than the working pressure range 61g. Thereby, it becomes possible to prevent the air pressure in the tank 41 of the main body 100 from being changed to an air pressure outside the operating pressure range.

  In the present embodiment, a method in which an operator directly inputs to the operation unit 6 by using a selection button or the like is illustrated. However, not only the method but also a bar code or an IC tag (for example, affixed to a pneumatic tool) The information such as an RFID tag is read by an imaging unit (for example, a camera) or a reading unit (for example, a reading unit for reading a barcode or a reading unit for reading an IC tag) provided in the operation unit 6, or a pneumatic tool. A communication unit such as an IC tag may be provided, and a method of inputting the type and conditions of the pneumatic tool used for work may be input by a method of performing wireless communication with the operation unit 6.

<Effect of Embodiment 2>
According to the second embodiment described above, the air extraction pressure can be adjusted according to the input received by the operation unit 6.

  As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, in some embodiments, the air compressor is a generator.

DESCRIPTION OF SYMBOLS 2 ... Motor, 3 ... Compression mechanism part, 4 ... Tank part, 5 ... Control board, 6 ... Operation part, 7 ... Mount member, 8 ... Cover, 9a, 9b, 9c ... Piping, 11 ... Compressed air outlet, 12 DESCRIPTION OF SYMBOLS ... Pressure reducing valve, 13 ... Pressure gauge, 14 ... Handle, 15 ... Power switch, 16 ... Power cord, 17 ... Motor for adjusting pressure, 21 ... Rotor, 22 ... Stator, 23 ... Rotating shaft, 24 ... Fan, 31 ... Crankcase, 33a ... High pressure side piston, 33b ... Low pressure side piston, 34a ... High pressure side connecting rod, 34b ... Low pressure side connecting rod, 35a ... High pressure side cylinder, 35b ... Low pressure side cylinder, 36a ... High pressure side compression chamber, 36b ... Low pressure Side compression chamber, 37 ... bearing, 37a ... high pressure side crank arm, 37b ... low pressure side crank arm, 38 ... balancer, 41 ... tank, 61 ... touch panel, 61a ... input button 61b ... ON button, 61c ... OFF button, 61d ... Mode selection button, 61e ... Air pressure indicator, 61f ... Air extraction pressure display area, 61g ... Working pressure range, 61h ... Air tool selection button, 70 ... Body side communication , 70a ... transmission / reception unit, 71 ... connection cable, 81 ... attachment part, hole ... 82, 83 ... attachment part cover, 90 ... holding part, 91 ... fitting part, 92 ... side part, 93 ... claw part, 100 ... Main unit 101: Air compressor 200: Operation unit side communication unit

Claims (12)

An air compressor having a main body part for supplying compressed air to a pneumatic tool, and an operation part for remotely operating the main body part,
The operation unit has an operation unit side communication unit that transmits and receives radio signals to and from the main body unit,
The main body is
A main body side communication unit that transmits and receives radio signals to and from the operation unit;
An attachment part to which the operation part is attached and detached;
Having an air compressor. The air compressor according to claim 1.
The said operation part is an air compressor which has a touchscreen which performs screen display and receives the touch operation from a user. The air compressor according to claim 1 or 2,
The attachment portion is an air compressor formed on a part of the upper surface of the main body portion. The air compressor according to claim 1 or 2,
The attachment portion has a holding portion that detachably holds the operation portion.
air compressor. The air compressor according to claim 4.
The holding unit is an air compressor having an elastic member. The air compressor according to claim 5, wherein
The elastic member is an air compressor, which is rubber or sponge. The air compressor according to any one of claims 1 to 4,
An air compressor having a mounting portion cover that covers an upper portion of the mounting portion. The air compressor according to claim 7,
The mounting portion cover is a transparent body, an air compressor. The air compressor according to any one of claims 1 to 4 and 7,
The said operation part is an air compressor with which electric power is supplied from the said main-body part in the state attached to the said attachment part. The air compressor according to claim 1 or 2,
The said operation part is an air compressor which receives the input of the conditions which concern on the said air tool used. The air compressor according to claim 10, wherein
The said operation part is an air compressor which receives the input of the air extraction pressure corresponding to the said air tool used. The air compressor according to claim 10 or 11,
The said operation part is an air compressor which has a reading part which reads the conditions concerning the said air tool used, or a receiving part which receives the said conditions.