JP2003176803A - System connecting pneumatic tool to compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make best use of compressed air in a tank and to use pneumatic tools safely in a system connecting a low-pressure pneumatic tool and a high- pressure pneumatic tool to a tank of one compressor. <P>SOLUTION: This system is equipped with a means to store 10-30 kg/cm<SP>2</SP>compressed air in the air tank, a first and a second outlets of the air tank, and a first pneumatic tool driven by low pressure compressed air, a first pressure reducing valve mounted to the first outlet for supplying 7-10 kg/cm<SP>2</SP>or less compressed air to the first pneumatic tool, a second pneumatic tool driven by high pressure compressed air, a second pressure reducing valve mounted to the second outlet for supplying 10-30 kg/cm<SP>2</SP>or less compressed air to the second pneumatic tool, a first hose for connecting the first pneumatic tool to the first pressure reducing valve, and a second hose for connecting the second pneumatic tool to the second pressure reducing valve. A joint of the first hose and that of the second hose are not interchangeable. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tool and a system for supplying compressed air to the pneumatic tool. Hereinafter, the pneumatic tool will be described as an air nailing machine. 2. Description of the Related Art A conventional compressor is provided with a socket forming one or a plurality of compressed air outlets through a pressure reducing valve having the same maximum discharge pressure. It is general to be able to drive a pneumatic nailing machine. Since the pneumatic nailer driven by this compressor is driven by compressed air of substantially the same pressure, a socket at the rear end of a hose connected to a plug forming a compressed air intake of the pneumatic nailer is provided. The compressor socket was compatible, and the plug at the end of the hose connected to the compressor socket and the plug on the air nailer were also compatible. By using these interchangeable sockets and plugs, parts can be shared, and compressors and air nailers can be provided at low cost. In recent years, there has been a demand for the development of an air nailing machine driven by high-pressure compressed air (hereinafter referred to as a high-pressure nailing machine for the sake of convenience) in order to reduce the size of the air nailing machine. Therefore, development of a compressor capable of extracting high-pressure compressed air for driving the high-pressure nailing machine and low-pressure compressed air for driving an existing nailing machine (hereinafter referred to as a low-pressure nailing machine for the sake of convenience). Are also being requested. A compressor disclosed in Japanese Utility Model Laid-Open No. 57-152473 has been proposed as such a compressor. In this method, one air tank is partitioned by a wall into substantially two air tanks. High-pressure compressed air and low-pressure compressed air are stored in these two air tanks, and compressed air having different pressures is extracted from these air tanks. It drives an air nailer. In such a compressor, if the above-described compatible socket, plug, and hose are used, for example, a low-pressure nailing machine may be connected to the high-pressure compressed air outlet, or a high-pressure nail may be connected to the low-pressure compressed air outlet. There is a risk of connecting a percussion machine. In the case of the latter, there is a problem that the original performance of the high-pressure nailing machine is not obtained, and in the case of the former, the hose may be damaged or the seal of the low-pressure nailing machine may be damaged, resulting in air leakage. is there. Further, in the case of the above-described compressor, normally, when the compressed air in one air tank is used, the compressed air in the other air tank is not used, and the compressed air in one air tank is not used. When air is used and the pressure drops, it is necessary to drive the compressor to generate compressed air, even if there is sufficient compressed air remaining in the other air tank, so that the compressor can operate efficiently. It will be difficult. Further, the compressor for the pneumatic nailing machine is required to be portable, and the size and weight of the air tank are similarly reduced, so that the capacity of the two air tanks cannot be increased so much. For this reason, the pressure of the compressed air in the used air tank is reduced in a short time, and there is a problem that not only the compressor but also the air nailing machine cannot be operated efficiently. SUMMARY OF THE INVENTION An object of the present invention is to provide a pneumatic tool and a pneumatic tool which eliminate the drawbacks of the prior art described above, allow full use of the compressed air in the air tank, and enable safe use of the pneumatic tool and the like. Is to provide a system with the machine. The object of the present invention is to provide a means for storing the generated compressed air of 10 to 30 kg / cm ² in an air tank and an outlet from the air tank. c
The first and second compressed air of the same pressure in the range of m ² appears
And a first pneumatic tool driven by compressed air at a maximum pressure of 7 to 10 kg / cm ² or less;
Attached to the first outlet, the maximum pressure that can be extracted is 7 to
A 10 kg / cm ^2, and the maximum pressure equal to or first pressure reducing valve for supplying a smaller pressure compressed air it first pneumatic tool of 7~10kg / cm ^2, the maximum pressure 10~30kg / c
m ² or, second driven by this smaller pressure compressed air
And the maximum pressure that can be taken out is 10-30 kg / cm ² , and is 10-30 kg.
a second pressure reducing valve for supplying compressed air at a pressure equal to or less than a maximum pressure of / cm ^{2 to} a second pneumatic tool; A first hose for connecting the power tool and the first pressure reducing valve, a second hose for connecting the second pneumatic tool and the second pressure reducing valve having male and female joints at both ends, This is achieved by making the male and female joints of the first hose and the male and female joints of the second hose incompatible with each other. An embodiment of the system of the present invention will be described with reference to FIG. The compressor 1 is, for example, about 10 to 30.
can boost generation to high pressure in kg / cm ^2, while the pressure reducing valve 4 is attached to an air tank (not shown) of the compressor 1 by way of to a low pressure of extraction maximum pressure, for example, about 7~10kg / cm ^2, while The pressure reducing valve 5 has a maximum discharge pressure of 10 to 30 kg / c.
It can extract up to a high pressure of m ² , and the former is equipped with a socket 8 which is generally used, and the latter is equipped with a socket 9 which is incompatible with the socket 8. The compressed air generated by the compressor 1 is sent to the air nailers 2 and 3.
The hose 6 supplied with a commonly used socket 8 and a similarly commonly used plug 10 at both ends thereof, and the socket 8 and the plug 10
The hose 7 has at least two types of hoses 7 each having a socket 9 and a plug 11 which are not compatible with each other. Since the high pressure compressed air flows through the hose 7, it naturally has a higher pressure resistance than the hose 6. Is formed. An air nailer is a commonly used plug 1
There is a low-pressure nailer 2 with 0 attached to the air intake and a high-pressure nailer 3 with a plug 11 that is incompatible with the plug 10 attached to the air intake. By connecting the compressor 1, the nailing machines 2, 3, the hoses 6, 7, the sockets 8, 9 and the plugs 10, 11 as shown by arrows in FIG. Compressor 1
Nailing machine 2, high-pressure nailing machine 3 through hoses 6 and 7
And can drive each nailing machine. FIG. 2 shows another embodiment of the system of the present invention. This embodiment is connected to a compression unit 14 that generates high-pressure compressed air of, for example, about 10 to 30 kg / cm ² , and a hose 15 to the compression unit 14, and is similar to the compressor 1 of FIG.
The compressor of the present invention is constituted by an auxiliary air tank 16 provided with a socket 8 via a first pressure reducing valve 4 and a socket 9 via a second pressure reducing valve 5. Similarly to the above embodiment, the low-pressure nailing machine 2 is supplied with low-pressure compressed air, and the high-pressure nailing machine 3 is supplied with high-pressure compressed air. It is possible to prevent the occurrence of air leakage or breakage of the hose 6 due to insufficient force or breakage of the seal portion of the low-pressure nailing machine 2. According to the above-described embodiment, at least two types of high-pressure and low-pressure reducing valves 4 having different maximum pressures of the compressed air taken out of the air tank or the auxiliary air tank 16 (not shown) for storing the high-pressure compressed air. 5, the compressed air in the air tank or the auxiliary air tank 16 can be fully used, and the compressor 1 and the air nailers 2, 3 can be operated efficiently. become able to. Further, the air tank or the auxiliary air tank 16 can be reduced in size and weight without reducing the volume of usable compressed air, and the portability of the compressor can be improved.
As a result, the operability of the compressor can be improved. [0013] Even if the operator incorrectly sets the take-out pressure by the low-pressure reducing valve 4, the pressure can be up to 10 kg / c.
m ² Since low pressure air nailer 2 or hose 6 and the like may no damage. Also, if the setting of the discharge pressure by the high-pressure reducing valve 5 is incorrect, there is a problem that the power of the high-pressure air nailing machine 3 is insufficient. There is no danger. When the place where the air nailers 2 and 3 are used is remote from the compressor 1 or the auxiliary air tank 16, several hoses 6 and 7 may be connected and used. 7 can only be connected to hoses 6 and 7 of the same type,
Since different kinds of hoses 7 and 6 are not connected, safety is further maintained. As described above, according to the present invention, the means for storing the generated compressed air of 10 to 30 kg / cm ^{2 in} the air tank and the outlet from the air tank, 30kg
a first and a second outlet where compressed air of the same pressure in the range of / cm ² appears, a first pneumatic tool driven by low pressure compressed air, and can be mounted and removed from the first outlet a maximum pressure is 7~10kg / cm ^2, and 7~10kg / cm up to a pressure of ² and equal to or less pressure compressed air than the first pressure reducing valve supplies the first pneumatic tool, high pressure A second pneumatic tool driven by compressed air, and a maximum pressure that can be taken out and attached to the second outlet is 10 to 30 kg / cm ² , which is equal to a maximum pressure of 10 to 30 kg / cm ² And supplying compressed air at a pressure lower than or equal to a second pneumatic tool.
And a male and female joint at both ends.
A first hose connecting the first pneumatic tool to the first pressure reducing valve, a second hose connecting the second pneumatic tool to the second pressure reducing valve having a male joint and a female joint at both ends. Equipped with a hose,
Since the male and female joints of the first hose and the male and female joints of the second hose are incompatible with each other, the pneumatic tool can be used safely. Leakage of air and breakage of the hose due to breakage of the seal portion can be completely prevented. In addition, since the compressed air in the air tank can be fully used, the compressor and the pneumatic tool can be operated efficiently, and the size and weight of the air tank can be reduced. Operational effects such as improvement in portability can be obtained. [0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the system of the present invention. FIG. 2 is a perspective view showing another embodiment of the system of the present invention. [Description of Signs] 1 is a compressor, 2 is a low-pressure air nailer, 3 is a high-pressure air nailer, 6, 7 are hoses, 8, 9 are sockets, 10 and 11 are plugs, 14 is a compression unit, 16 Is the auxiliary air tank

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Claims (1)

Claims 1. A system comprising a combination of an air moving tool such as an air nailing machine and an air impact wrench and a compressor for generating compressed air for driving the air moving tool. Means for generating compressed air having a pressure of 10 to 30 kg / cm ^{2 and} storing the generated compressed air of 10 to 30 kg / cm ² in an air tank; ^A first and a second outlet in which compressed air of the same pressure in the range of ² appears; a first pneumatic tool driven by a compressed air of a maximum pressure of 7 to 10 kg / cm ² or less; Attached to the first outlet, the maximum pressure that can be extracted is 7 to
A 10 kg / cm ^2, and the maximum pressure equal to or first pressure reducing valve for supplying a smaller pressure compressed air it first pneumatic tool of 7~10kg / cm ^2, the maximum pressure 10~30kg a second pneumatic tool driven by compressed air at a pressure of / cm ² or less;
A 30 kg / cm ^2, and the maximum pressure equal to or second pressure reducing valve for supplying a smaller pressure compressed air it to the second pneumatic tool of 10 to 30 kg / cm ^2, the male across the joint And a first hose connecting the first pneumatic tool and the first pressure reducing valve, and having a male joint and a female joint at both ends. A second hose connecting the second pressure reducing valve, wherein the male and female joints of the first hose and the male and female joints of the second hose are incompatible with each other. A pneumatic tool and compressor system.