초록
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The invention relates to a spray gun comprising a gun body (1), a nozzle arrangement (9) arranged on said gun body (1), a compressed air supply channel (22, 23) which is arranged in the gun body (1) and which comprises a valve arrangement (17) for controlling the compressed air supply to the nozzle arrangement (9), a device (31, 33, 37, 42, 40) for controlling the compressed air supply, and a pressure measuring device (35) for recording and displaying the pressure in the compressed air channel (22). Said invention is characterized in that said pressure m...
The invention relates to a spray gun comprising a gun body (1), a nozzle arrangement (9) arranged on said gun body (1), a compressed air supply channel (22, 23) which is arranged in the gun body (1) and which comprises a valve arrangement (17) for controlling the compressed air supply to the nozzle arrangement (9), a device (31, 33, 37, 42, 40) for controlling the compressed air supply, and a pressure measuring device (35) for recording and displaying the pressure in the compressed air channel (22). Said invention is characterized in that said pressure measuring device (35) is secured in a removable manner to the device (31, 33, 37, 42, 40) for controlling the compressed air supply.
대표
청구항
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1. A spray gun comprising: a gun body,a nozzle arrangement located on the gun body,a compressed air supply channel located in the gun body coupled to the nozzle arrangement,a valve arrangement to control supply of compressed air to the nozzle arrangement,a regulating device located in the gun body upstream of the valve arrangement for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel, anda mounting member having an exterior surface fixed to the gun bo...
1. A spray gun comprising: a gun body,a nozzle arrangement located on the gun body,a compressed air supply channel located in the gun body coupled to the nozzle arrangement,a valve arrangement to control supply of compressed air to the nozzle arrangement,a regulating device located in the gun body upstream of the valve arrangement for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel, anda mounting member having an exterior surface fixed to the gun body juxtaposed to the regulating device,the mounting member including a first air channel in communication with the regulated compressed air supply channel and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, the first and second air channels being axially off-line, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being open and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member with the normally closed valve being closed, whereby manual demounting of the pressure measuring device does not affect normal operation of the spray gun. 2. The spray gun according to claim 1, wherein the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device are of complementary geometrical shape. 3. The spray gun according to claim 1, wherein the normally closed valve includes a valve element that protrudes outwardly from the portion of the exterior surface of the mounting member. 4. The spray gun according to claim 1, wherein the mounting member is mechanically coupled with the regulating device and a control element is mounted on the mounting member for relative movement thereto that is coupled to the regulating device to enable manual manipulation of the control element to control regulation of the supply of compressed air. 5. The spray gun according to claim 4, wherein the control element is rotary through an arc of about 90 degrees relative to the mounting member. 6. The spray gun according to claim 5, wherein a sealing element is interposed between the mounting member and the regulating device adjacent the normally closed valve. 7. The spray gun according to claim 1, wherein a sealing member is mounted on the mating surface that surrounds and seals the first and second air channels when placed in communication. 8. The spray gun according to claim 1, wherein said first air channel in said mounting member is in communication with the regulated air supply channel via a capillary. 9. The spray gun according to claim 1, wherein said mounting member includes a tubular part projecting rearward from opposite the portion of the exterior surface that is fixed to the spray gun body. 10. The spray gun according to claim 1, wherein the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device having mutually engageable parts for latching the pressure measuring device on the mounting member when manually mounted. 11. A spray gun comprising: a gun body,a nozzle arrangement located on the gun body,a compressed air supply channel located in the gun body coupled to the nozzle arrangement,a valve arrangement to control supply of compressed air to the nozzle arrangement,a regulating device located in the gun body upstream of the valve arrangement for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel, anda mounting member having an exterior surface fixed to the gun body juxtaposed to the regulating device,the mounting member including a first air channel in communication with the regulated compressed air supply channel and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being open and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member with the normally closed valve being closed, whereby manual demounting of the pressure measuring device does not affect normal operation of the spray gun, the mutually coacting elements of the mounting member and the pressure measuring device constituting a dovetail joint. 12. The spray gun according to claim 1, wherein the pressure measuring device comprises a housing composed of a housing inner part that includes said mating surface and a compartment is located in said housing for holding a battery. 13. The spray gun according to claim 12, wherein the compartment has a blind recess in which a battery can be held. 14. A spray gun comprising: a gun body,a nozzle arrangement located on the gun body,a compressed air supply channel located in the gun body coupled to the nozzle arrangement,a valve arrangement to control supply of compressed air to the nozzle arrangement,a regulating device located in the gun body upstream of the valve arrangement for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel, anda mounting member having an exterior surface fixed to the gun body juxtaposed to the regulating device,the mounting member including a first air channel in communication with the regulated compressed air supply channel and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being open and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member with the normally closed valve being closed, whereby manual demounting of the pressure measuring device does not affect normal operation of the spray gun,the pressure measuring device including a housing composed of a housing inner part that includes said mating surface and a compartment being located in said housing for holding a battery, the compartment being slidably supported in the housing and a positioning element being provided for sliding said compartment out to expose a recess in which a battery can be positioned. 15. The spray gun according to claim 12, wherein the housing of the pressure measuring device includes a housing outer part, which is removably mounted on the housing inner part. 16. The spray gun according to claim 15, wherein a removable pressure measuring unit is contained in the removable housing outer part. 17. The spray gun according to claim 1, wherein a removable nozzle needle is included in the spray gun body, and the mounting member is configured to enable removal of the nozzle needle. 18. The spray gun according to claim 1, wherein the normally closed valve is comprised of a spring biased normally closed ball valve located at the portion of the exterior surface with the ball protruding slightly out of the exterior surface. 19. A testing air cap for a spray gun for testing center air pressure and horn air pressure in a center air channel and a horn air channel, respectively, of the spray gun, comprising a pair of mounting members;one mounting member having an exterior surface fixed to the testing air cap with a first air channel in said one mounting member having one end in communication with the air pressure in the center air channel and the other end terminating at a portion of the exterior surface of the one mounting member, a first normally closed valve mounted in the first air channel at the portion of the exterior surface of the one mounting member;the other mounting member having an exterior surface fixed to the testing air cap with a second air channel in said other mounting member having one end in communication with the air pressure in the horn air channel and the other end terminating at a portion of the exterior surface of the other mounting member, a second normally closed valve mounted in the second air channel at the portion of the exterior surface of the other mounting member;a pressure measuring device including a mating surface and a third air channel leading from the mating surface of the pressure measuring device to a pressure sensor, andthe mounting members and the pressure measuring device having mutually coacting elements to enable manual mounting of a pressure measuring device onto at least one of the mounting members with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve of the mounting member being open and the air channel of the mounting member and the third air channel being placed in communication, and to enable manual demounting of a pressure measuring device from a mounting member that closes the normally closed valve when the pressure measuring device is removed from the mounting member, whereby manual demounting of a pressure measuring device does not affect normal operation of the testing air cap. 20. An apparatus comprising: a working part that utilizes compressed air,a compressed air supply channel coupled to the working part to supply compressed air thereto,a valve to control the supply of compressed air to the working part,a regulating device located upstream of the valve for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel downstream of said regulating device, anda mounting member having an exterior surface fixed to the apparatus juxtaposed to the regulating device,the mounting member including a first air channel in communication with the air supply channel downstream of the device for regulation of the supply of compressed air and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, the first and second air channels being axially off-line, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being open and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member to close the normally closed valve when the pressure measuring device is removed from the mounting member, whereby manual demounting of the pressure measuring device does not affect normal operation of the apparatus. 21. The apparatus according to claim 20, wherein the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device are of complementary geometrical shape. 22. The apparatus according to claim 20, wherein the normally closed valve includes a valve element that protrudes outwardly from the portion of the exterior surface of the mounting member. 23. The apparatus according to claim 20, wherein the mounting member is mechanically coupled with the regulating device and a control element is mounted on the mounting member for relative movement thereto that is coupled to the regulating device to enable manual manipulation of the control element to control regulation of the supply of compressed air. 24. The apparatus according to claim 23, wherein the control element is rotary through an arc of about 90 degrees relative to the mounting member. 25. The apparatus according to claim 24, wherein a sealing element is interposed between the mounting member and the regulating device adjacent the normally closed valve. 26. The apparatus according to claim 20, wherein a sealing member is mounted on the mating surface that surrounds and seals the first and second air channels when placed in communication. 27. The apparatus according to claim 20, wherein said first air channel in said mounting member are in communication with the regulated air supply channel via a capillary. 28. The apparatus according to claim 20, wherein said mounting member includes a tubular part projecting rearward from opposite the portion of the exterior surface that is fixed to the apparatus. 29. The apparatus according to claim 20, wherein the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device have mutually engageable parts for latching the pressure measuring device on the mounting member when manually mounted. 30. An apparatus comprising: a working part that utilizes compressed air,a compressed air supply channel coupled to the working part to supply compressed air thereto,a valve to control the supply of compressed air to the working part,a regulating device located upstream of the valve for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel downstream of said regulating device, anda mounting member having an exterior surface fixed to the apparatus juxtaposed to the regulating device,the mounting member including a first air channel in communication with the air supply channel downstream of the device for regulation of the supply of compressed air and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, the first and second air channels being axially off-line, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being opened and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member to close the normally closed valve when the pressure measuring device is removed from the mounting member, whereby manual demounting of the pressure measuring device does not affect normal operation of the apparatus the mutually, the mutually coacting elements of the mounting member and the pressure measuring device constituting a dovetail joint. 31. The apparatus according to claim 20, wherein the pressure measuring device comprises a housing composed of a housing inner part that includes said mating surface and a compartment is located in said housing for holding a battery. 32. The apparatus according to claim 20, wherein the compartment has a blind recess in which a battery can be held. 33. An apparatus comprising: a working part that utilizes compressed air,a compressed air supply channel coupled to the working part to supply compressed air thereto,a valve to control the supply of compressed air to the working part,a regulating device located upstream of the valve for regulation of the supply of compressed air,a pressure measuring device for the sensing and displaying of the pressure in the compressed air supply channel downstream of said regulating device, anda mounting member having an exterior surface fixed to the apparatus juxtaposed to the regulating device,the mounting member including a first air channel in communication with the air supply channel downstream of the device for regulation of the supply of compressed air and leading to a portion of the exterior surface of the mounting member, and a normally closed valve mounted in the first air channel at the portion of the exterior surface of the mounting member,the pressure measuring device including a mating surface and a second air channel leading from the mating surface of the pressure measuring device to a pressure sensing element, the first and second air channels being axially off-line, andthe mounting member and the pressure measuring device having mutually coacting elements to enable manual mounting of the pressure measuring device onto the mounting member with the portion of the exterior surface of the mounting member and the mating surface of the pressure measuring device in engagement, the normally closed valve being opened and the first and second air channels being placed in communication, and to enable manual demounting of the pressure measuring device from the mounting member to close the normally closed valve when the pressure measuring device is removed from the mounting member, whereby manual demounting of the pressure measuring device does not affect normal operation of the apparatus the mutually,the pressure measuring device including a housing composed of a housing inner part that includes said mating surface and a compartment being located in said housing for holding a battery, the compartment being slidably supported in the housing and a positioning element being provided for sliding said compartment out to expose a recess in which a battery can be positioned. 34. The apparatus according to claim 31, wherein the pressure measuring device includes a housing outer part that is removably mounted on the housing inner part. 35. The apparatus according to claim 31, wherein a removable pressure measuring unit is contained in the housing. 36. The apparatus according to claim 20, wherein the normally closed valve is comprised of a spring biased normally closed ball valve located at the portion of the exterior surface with the ball protruding slightly out of the exterior surface.
