Source: https://patents.google.com/patent/EP1793933A1/en
Timestamp: 2018-09-26 13:21:35
Document Index: 534893301

Matched Legal Cases: ['art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art. 3', 'art. 3', 'art. 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art. 3']

EP1793933A1 - Fluid reservoir for a paint spray gun - Google Patents
EP1793933A1
EP1793933A1 EP20050772061 EP05772061A EP1793933A1 EP 1793933 A1 EP1793933 A1 EP 1793933A1 EP 20050772061 EP20050772061 EP 20050772061 EP 05772061 A EP05772061 A EP 05772061A EP 1793933 A1 EP1793933 A1 EP 1793933A1
EP20050772061
EP1793933B1 (en )
Gravity cup for a paint spray gun
Conventional Gravity cup for paint spray guns generally have a cup-shaped container, on the underside an aperture having a connection part for detachable mounting of the container on top of the paint spray gun is provided. The connection part usually consists of a container base arranged on the connecting piece, which has an external thread for screwing into a corresponding threaded opening at the top of the paint spray gun. In the known flow cups of the connecting part is generally rigidly mounted to the container. However, this results in a problem that the patch on the paint spray gun container at certain inclinations of the spray gun takes a horizontal or nearly horizontal position, and then the supply of the color is no longer guaranteed to the spray gun under certain circumstances.
The object of the invention is to provide a flow cup of the type mentioned which allows an improved material feeding even with inclinations of the paint spray gun.
This object is achieved by a flow cup with the features of claim 1. Expedient refinements and advantageous developments of the invention are the subject of the dependent claims.
A significant advantage of the gravity cup according to the invention is that the ink container can be lobed relative to the connector. The inclination of the mounted on the spray gun fluid reservoir can thus be changed if necessary, so as to ensure the influx of color to the paint spray gun even with larger inclinations of the spray gun. The adjustment is achieved in that a transition region between the connecting part and the container or the lid is designed to be flexible. The connecting part for detachably fastening the gravity cup to the paint spray gun may be attached to the container or on the lid. When the connector is on the cover, the container is in its operative position on the head.
In a production-technically simple embodiment of the invention, at the transition region between the connecting part and the container or the cover, a wall thickness transition from a thicker wall thickness at the connecting part in a thinner wall thickness at the container or cover is provided.
In a further embodiment, however, the transition region may also be for example in the form of a bellows or the like. Be performed.
Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawing. Show it:
1 shows a first embodiment of a fluid reservoir according to the invention with a straight and a tilted connection part and enlarged views of the regions X and Y;
2 shows a second embodiment of a fluid reservoir according to the invention with a straight and a tilted connection part and enlarged views of the areas X and Y.
The flow cup illustrated in Figures 1 and 2 for a paint spray gun includes a cup-shaped container 1, a can be placed on the container 1 the lid 2 and an integrally formed on the container 1 attachment part 3 for releasably fastening the container 1 to a paint spray gun. Both the container 1 with the integrally formed attachment part 3 and the lid 2 are made as injection molded parts made of a resilient, non-embrittling plastic material. These requirements are met as plastics PE or those containing high PE shares. apparent λVie particularly from the enlarged detail views of X and Y of Figures 1 and 2, the connection part 3 of a molded-on to the conical bottom 4 of the container 1 or otherwise formed, tubular connection piece having a front hollow cylindrical guide portion 5, a subsequent thereto external threads 6 includes for screwing into a conventional internal thread, a valve disposed above the external thread 6 screw wedge element for a rapid connection of the gravity cup to the paint spray gun and an upper insert portion 7 with an internal annular bearing surface 8 for plugging in a known per se filter. In the illustrated embodiment, the threaded wedge element is formed by a passage extending approximately over half the circumference of the connection part 3 schraubkeilförmigen protrusion 9 with a Schraubkeilfläche 10 which engages with a corresponding mating surface on a lug or projection of the paint spray gun. The projection 9 with the Schraubkeilfläche 10 and the corresponding counter surface on the paint spray gun are designed so that the container 1 can be mounted close to the paint spray gun already at a quarter to half a turn. The connection part 3 is for this purpose fastened with its front end surface 11 on a corresponding sealing surface within the paint spray gun. Via the additional external thread 6 of the gravity cup can also be used for paint guns, however, have no matching the screw wedge connection, a conventional internal thread connection.
In the illustrated in Figures 1 and 2 flow cups, a transition region is designed to be flexible between the connection part 3 and the bottom 4 of the container 1 12 such that an adjustment of the angular position of the central axis 13 of the container 1 is made possible relative to the central axis 14 of the connecting part. 3 The transition region 12 is designed so that the container 1 can be placed on a paint spray gun as needed into a desired tilted position after screwing and not automatically pivots back from this into its normal position. If necessary, the container 1 may, however, be pivoted into its normal position or other tilted back. In the respective left representations of Figures 1 and 2, the flow cup is shown in its normal position. In this position, the central axis 13 of the container 1 coincides with the center axis 14 of the connecting part. 3 In the respective right representations of the container 1 is tilted with respect to the connecting part. 3 The central axis 14 of the connection part 3 is then inclined at an angle to the central axis 13 of the container. 1 In the embodiment of Figure 1, the transition region 12 between the connecting part 3 and the container 1 is designed such that a wall thickness transition is provided by a thicker wall thickness at the insert portion 7 of the connection part 3 in a thinner wall thickness of the container bottom. 4 The wall thickness difference at the transition region is at least 30%. Characterized the insert portion 7 of the connection part 3 but is not impaired will ensure that the bottom 4 of the container 1 can be flexed even without formation of cracks. Characterized the inner contour of the connecting part 3 for receiving the filter also during the pivoting of the container 1 is maintained. At the transition from the connecting part 3 in the bottom 4 of the container 1, a radius 15 is provided. This ensures that the container 1 will not be damaged in this area during the tilting and kinking.
In the illustrated embodiment in Figure 2, the transition region is formed in a bellows fashion 12th Also in this embodiment, the container 1 can be tilted if necessary against the connecting part. 3
The invention is not limited to the above described and shown in the drawings embodiments. Thus, the connector can be 3 molded against the cap. The container may then have a common cup-like shape with a straight bottom surface without connecting part. Provided with the connector lid can be placed on it after filling of the container and the flow cup may then be inserted in the connection opening a paint spray gun upside down. the paint spray gun may then be subsequently inverted for spraying, so that the flow cup is at the top of the spray gun. In order to permit venting of the fluid reservoir, for example, may open a valve provided at the bottom of fluid reservoir vent valve or an initially closed vent channel by means of a pin or the like. Punctured. By after use resealable vent valve or a resealable vent opening leads to the advantage that the flow cup can also be used for storage is not completely depleted of ink.
1. Gravity cup for a paint spray gun with a cup-shaped container (1), one to the tank (1) attachable lid (2) and the container (1) or on the lid formed (2) connection member (3) for fastening the gravity cup to the paint spray gun, characterized in that a transition area (12) between the connecting part (3) and the container (1) or the cover (2) for adjusting the inclination of the central axis (13) of the container (1) or the lid (2) relative to the central axis (14) of the connecting part (3) is flexible.
2. Gravity cup according to claim 1, characterized in that at the transition region (12) between the connecting part (3) and the container (1) or the cover (2) is a wall thickness transition from a thicker wall thickness at the connection part (3) in a thinner wall thickness at the a container (1) or the cover (3) is provided.
3. Gravity cup according to claim 2, characterized in that the wall thickness difference at the transition from the connecting part (3) to the container (1) or cover (2) is at least 30%.
4. Gravity cup according to one of claims 1 to 3, characterized in that a radius (15) is provided at the transition from the connecting part (3) to the container (1) or the cover (2).
5. Gravity cup according to 1, characterized in that the transition region (12) is formed in a bellows fashion.
6. Gravity cup according to one of claims 1 to 5, characterized in that the connection part (2) contains a screw wedge element (9, 10) for a rapid connection of the gravity cup to the paint spray gun.
7. Gravity cup according to claim 6, characterized in that the screw wedge element (9, 10) by an approximately over half the circumference of the connecting part (3) extending schraubkeilförmigen projection (9) with a Schraubkeilfläche (10) for engagement with * a corresponding mating surface is formed on a lug or projection of the paint spray gun.
8. Gravity cup according to claim 7, characterized in that the quick-closure thread (18, 19) is a four-speed coarse thread with external threads (18) on the upper outer periphery of the container (1) plus a corresponding internal threads (19) on the inside of the lid (2) ,
9. Gravity cup according to one of claims 1 to 8, characterized in that the connection part (3) contains an external thread (6) for screwing into a conventional internal thread.
10. Gravity cup according to one of claims 1 to 9, characterized in that the container (1) and / or the cover (2) with the connection part (3) made of an elastic, non-embrittling plastic material, preferably PE or plastics material with a high PE portion is.
EP20050772061 2004-09-07 2005-08-13 Use of a fluid reservoir for a paint spray gun Active EP1793933B1 (en)
EP1793933A1 true true EP1793933A1 (en) 2007-06-13
EP1793933B1 EP1793933B1 (en) 2010-04-14
EP20050772061 Active EP1793933B1 (en) 2004-09-07 2005-08-13 Use of a fluid reservoir for a paint spray gun
See references of WO2006027084A1 *
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