JP3692535B2 - Pneumatic tool and compressor system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pneumatic tool and a system with a compressor that supplies compressed air to the pneumatic tool. Hereinafter, the pneumatic tool will be described as an air nailer.
[0002]
[Prior art]
A conventional compressor has a socket that forms one or a plurality of compressed air outlets via a pressure reducing valve with the same maximum extraction pressure, and a single compressor can drive a plurality of air nailers. It is common to do so.
[0003]
Since the air nailer driven by this compressor is driven by compressed air of almost the same pressure, the socket at the rear end of the hose connected to the plug forming the compressed air intake of the air nailer and the compressor The socket was interchangeable, and the plug on the tip of the hose connected to the socket of the compressor and the plug of the air nailer were also compatible. By making these compatible sockets and plugs, parts can be shared, and a compressor and an air nailer can be provided at low cost.
[0004]
In recent years, there has been a demand for the development of an air nailer driven by high-pressure compressed air (hereinafter referred to as a high-pressure nailer for convenience of description) in order to reduce the size of an air nailer. Therefore, development of a compressor capable of taking out high-pressure compressed air for driving this high-pressure nailing machine and low-pressure compressed air for driving existing nailing machines (hereinafter referred to as low-pressure nailing machine for convenience of explanation). Has also been requested.
[0005]
[Problems to be solved by the invention]
A compressor described in Japanese Utility Model Laid-Open No. 57-152473 has been proposed. This means that one air tank is divided into walls by dividing it into two air tanks, high pressure compressed air and low pressure compressed air are stored in these two air tanks, and compressed air of different pressures are taken out from these air tanks. The air nailer is driven.
[0006]
In such a compressor, if the above-described compatible socket, plug, and hose are used, for example, a low pressure nailer is connected to the high pressure compressed air outlet, or a high pressure nailer is connected to the low pressure compressed air outlet. There is a risk of connecting. In the latter case, there is a problem that the original performance of the high-pressure nailer is not achieved. In the former case, the hose may be damaged, or the seal part of the low-pressure nailer may be damaged to cause air leakage. is there.
[0007]
Further, in the case of the compressor as described above, when the compressed air in one air tank is normally used, the compressed air in the other air tank is not used, and the compressed air in one air tank is used. When the pressure is reduced, it is necessary to drive the compressor to generate compressed air even if sufficient compressed air remains in the other air tank, making it difficult to operate the compressor efficiently. . The air nailer compressor is required to be portable, the air tank is similarly reduced in size and weight, and the capacity of the two air tanks cannot be increased too much. For this reason, the pressure of the compressed air in the used air tank is lowered after a short period of use, and there is a problem that not only the compressor but also the air nailer cannot be operated efficiently.
[0008]
An object of the present invention is to provide a pneumatic tool and a compressor that eliminates the drawbacks of the prior art described above, makes it possible to fully use the compressed air in the air tank, and allows the pneumatic tool to be used safely. Is to provide a system.
[0009]
[Means for Solving the Problems]
The above object is a system comprising a combination of an air moving tool such as an air nailing machine and a compressor that generates compressed air that drives the air moving tool, the air tank for storing compressed air, A compressor connected to the air tank and supplying compressed air in a predetermined pressure range to the air tank; first and second outlets provided in the air tank; and the first and second outlets Regardless of the magnitude of the pressure of the input compressed air, the maximum pressure of the compressed air that can be taken out is set to the first and second pressure reducing valves set in advance and the first pressure reducing valve, respectively. A low pressure pneumatic tool connected to the pressure reducing valve via a first hose, and a high pressure pneumatic tool connected to the second pressure reducing valve via a second hose and used with the low pressure pneumatic tool. A pneumatic tool, and the first and second As valve, use those maximum pressure in the first pressure reducing valve from the maximum pressure of the second pressure reducing valve is small, the maximum pressure in the first pressure reducing valve, the pressure with the range of 7~10kg / cm ² The maximum pressure of the second pressure reducing valve is set to a certain pressure within the range of 10 to 30 kg / cm ² , and the compressed air taken out from the first and second pressure reducing valves is set to the first pressure, respectively. The low pressure pneumatic tool and the high pressure pneumatic tool are supplied via the first and second hoses, the fluid coupling between the first pressure reducing valve and the first hose, the second pressure reducing valve and the second pressure hose. This is achieved by making the fluid coupling portion between the two hoses incompatible with each other.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the system of the present invention will be described with reference to FIG. The compressor 1 can generate a pressure up to a high pressure of, for example, about 10 to 30 kg / cm ² , and one pressure reducing valve 4 attached to an air tank (not shown) of the compressor 1 has a maximum take-out pressure of, for example, about 7 to 10 kg / cm ^2. The other pressure reducing valve 5 can take out to a high pressure of 10 to 30 kg / cm ² , and the former has a generally used socket 8 attached to the latter. A socket 9 which is not compatible with the socket 8 is attached.
The hose for supplying the compressed air generated by the compressor 1 to the air nailers 2 and 3 is a hose in which a commonly used socket 8 and a commonly used plug 10 are mounted at both ends. 6 and at least two types of hoses 7 having sockets 9 and plugs 11 that are incompatible with the sockets 8 and plugs 10 at both ends. Compared to 6, the pressure strength is increased.
The air nailer has a low-pressure nailer 2 in which a plug 10 generally used is attached to an air intake, and a plug 11 that is incompatible with the plug 10 is attached to the air intake. There is a high-pressure nailer 3. By connecting the compressor 1, nailer 2, 3, hose 6, 7, sockets 8, 9 and plugs 10, 11 as shown by the arrows in FIG. The compressor 1 is supplied to the low-pressure nailer 2 and the high-pressure nailer 3 through the hoses 6 and 7, and the respective nailers can be driven.
[0011]
Another embodiment of the system of the present invention is shown in FIG. In this embodiment, for example, a compression unit 14 that generates high-pressure compressed air of about 10 to 30 kg / cm ² is connected to the compression unit 14 via a hose 15. The compressor of the present invention is constituted by an auxiliary air tank 16 provided with a socket 8 via a pressure reducing valve 4 and a socket 9 via a second pressure reducing valve 5. Similarly to the above-described embodiment, the low-pressure nailer 2 is supplied with low-pressure compressed air, and the high-pressure nailer 3 is supplied with high-pressure compressed air. It is possible to prevent the occurrence of air leakage or damage to the hose 6 due to insufficient force or damage to the seal portion of the low-pressure nailer 2.
[0012]
According to the above-described embodiment, at least two kinds of pressure reducing valves 4 and 5 of high pressure and low pressure differing in the maximum pressure of the compressed air that can be taken out from the air tank or auxiliary air tank 16 (not shown) that stores high pressure compressed air are provided. Compressed air is supplied via the air tank, so that 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 and 3 can be operated efficiently. Become. Furthermore, the air tank or the auxiliary air tank 16 can be reduced in size and weight without reducing the volume of compressed air that can be used, 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-off pressure by the low-pressure pressure reducing valve 4, the pressure is 10 kg / cm ^{2 at the} maximum, so there is no possibility that the low-pressure air nailer 2 or the hose 6 will be damaged. Also, when the take-off pressure setting by the high-pressure pressure reducing valve 5 is wrong, there is a problem that the power of the high-pressure air nailer 3 is insufficient, but there is a problem such as damage because the low-pressure air nailer 2 is not connected. There is no fear.
[0014]
Further, when the place where the air nailers 2 and 3 are used is away from the compressor 1 or the auxiliary air tank 16, several hoses 6 and 7 may be connected and used, but the hoses 6 and 7 are the same. Since it can be connected only to the kind of hoses 6 and 7 and different types of hoses 7 and 6 are not connected, safety is further maintained.
[0015]
【The invention's effect】
As described above, according to the present invention, the compressed air having a pressure of 10 to 30 kg / cm ² is generated by the compressor, and the generated compressed air of 10 to 30 kg / cm ² is stored in the air tank; A pneumatic valve and a pressure reducing valve whose maximum pressure that can be taken out is in a range of 7 to 10 kg / cm ² , and supplies compressed air having a pressure equal to or less than the maximum pressure to the first pneumatic tool. A first pressure reducing valve attached to the air tank, a second pneumatic tool, and a pressure reducing valve whose maximum pressure that can be taken out is a pressure in the range of 10-30 kg / cm ² , In order to supply compressed air having a pressure equal to or less than the pressure to the second pneumatic tool, a second pressure reducing valve attached to the air tank, a first pneumatic tool and the first pressure reducing valve are provided. Connecting a first hose for connection, a second pneumatic tool, and a second pressure reducing valve And a fluid coupling portion between the first pressure reducing valve and the first hose and a fluid coupling portion between the second pressure reducing valve and the second hose are not compatible with each other. In addition, the fluid coupling portion between the first pneumatic tool and the first hose, and the fluid coupling portion between the second pneumatic tool and the second hose are incompatible with each other, It becomes possible to use the pneumatic tool safely, and it is possible to completely prevent air leakage and hose damage due to breakage of the seal portion. In addition, since the compressed air in the air tank can be fully used, the compressor and the air moving tool can be operated efficiently, and the air tank can be reduced in size and weight, allowing the compressor to be used. It is possible to achieve operational effects such as improved portability.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a system of the present invention.
FIG. 2 is a perspective view showing another embodiment of the system of the present invention.
[Explanation of symbols]
1 is a compressor, 2 is a low-pressure air nailing machine, 3 is a high-pressure air nailing machine, 6 and 7 are hoses, 8 and 9 are sockets, 10 and 11 are plugs, 14 is a compression section, and 16 is an auxiliary air tank. is there

Claims (4)

(B) A system comprising a combination of an air moving tool such as an air nailer and a compressor that generates compressed air that drives the air moving tool,
(B) an air tank for storing compressed air;
(C) a compressor connected to the air tank and supplying compressed air in a predetermined pressure range to the air tank;
(D) first and second outlets provided in the air tank;
(E) Pressure reducing valves attached to the first and second outlets, and the maximum pressure of the compressed air that can be taken out is determined in advance regardless of the magnitude of the pressure of the inputted compressed air. First and second pressure reducing valves;
(F) a low pressure pneumatic tool connected to the first pressure reducing valve via a first hose; and a low pressure pneumatic tool connected to the second pressure reducing valve via a second hose. And a high-pressure pneumatic tool used with
(G) As the first and second pressure reducing valves, those having a maximum pressure of the first pressure reducing valve smaller than the maximum pressure of the second pressure reducing valve are used.
(H) The maximum pressure of the first pressure reducing valve is 7 to 10 kg / cm ² The maximum pressure of the second pressure reducing valve is set to 10 to 30 kg / cm. ² Is set to a pressure within the range of
(I) supplying the compressed air taken out from the first and second pressure reducing valves to the low pressure pneumatic tool and the high pressure pneumatic tool via the first and second hoses, respectively;
(Nu) The fluid coupling part between the first pressure reducing valve and the first hose and the fluid coupling part between the second pressure reducing valve and the second hose are incompatible with each other.
(Le) A system comprising a pneumatic tool and a compressor.   The fluid coupling portion between the first hose and the low-pressure pneumatic tool and the fluid coupling portion between the second hose and the high-pressure pneumatic tool are incompatible with each other. System.   In Claim 1, it is 10-30 kg / cm in several outlets of the compressed air of an air tank. ² A system characterized by the appearance of compressed air of the same pressure in the range of.   In Claim 1, the said 1st and 2nd pressure-reduction valve can adjust the pressure of the compressed air supplied to the said low pressure pneumatic tool and the high pressure pneumatic tool within the range below each maximum pressure. A system characterized by that.

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