Color guidance arrangement, spray gun and method for using a color guidance device

Abstract

A color guidance arrangement consists of a color guidance device for insertion into a spray gun and a cup that has a lid and a cup part. According to the invention, the color guidance device is integrally or permanently connected to the cup.

Description

[0001] The invention relates to a color-guiding arrangement with a color-guiding device for insertion into a spray gun and a cup comprising a lid and a cup part. The invention also relates to a spray gun with a color-guiding device and a method for using a color-guiding device.

[0002] Color guide devices are used particularly for spraying paints and varnishes. It is known to insert a color guide device into a spray gun and screw a cup onto the color guide device. The paint then flows from the cup through the color guide device to a nozzle. The color guide device prevents the spray gun from becoming contaminated. Typically, the color guide device and the cup or cup insert are disposable items that therefore do not require cleaning. The invention relates in particular to such a color guide device.

[0003] When the cup is filled with liquid, relatively large forces act between an outlet of the cup and an inlet of the color guide. To counteract these forces, it has been proposed to hold the upper end of the color guide firmly to the spray gun using guides. However, the connection area between the color guide and the cup must remain clear to allow the cup to be screwed onto the color guide or otherwise secured there.

[0004] The invention is therefore based on the objective of proposing a particularly stable color guide arrangement.

[0005] This problem is solved by the features of claim 1.

[0006] Because the color-guiding device is integrally or permanently connected to the cup according to the invention, it is possible to design this area more stably and / or securely. Furthermore, this prevents contamination in the transition area, an insecurely attached cup, or wobbling at the transition between the cup and the color-guiding device from allowing paint to leak.

[0007] The cup, and especially the lid or a cup part, can be made from a particularly thin material. The cup part, in particular, can also be made from a so-called liner, which causes the cup part to contract when emptied. However, the cup part and lid can also be made so flexible that they are not dimensionally stable and require support. It is advantageous, however, if the cup is dimensionally stable. In this case, the lid can be dimensionally stable, as can the cup part, especially if it has a liner.

[0008] To minimize the amount of material that comes into contact with the liquid and to ensure easy disposal of all soiled parts, it is advantageous if the lid and / or the cup part are not rigid. This allows the lid and / or the cup part to be manufactured from a thin film that can also be discarded after use.

[0009] A first embodiment of the invention provides that the color-guiding device is connected to the lid. Thus, liquid such as paint or varnish flows from the cup part through the lid to the color-guiding device and, within the color-guiding device, through the spray gun to a nozzle, which may also be part of the color-guiding device. The cup part can be connected to the lid, for example, by a screw connection, a cap nut, or a snap-on closure. Typically, the cup part contains a non-rigid insert or has an air vent.

[0010] The lid may have a conically shaped area that tapers towards the color guidance device.

[0011] The cup part may have an insert, also known as a liner, and / or an air vent.

[0012] An alternative solution proposes connecting the color guide to the cup part. In this case, the cup part is usually closed with a lid, and the liquid flows directly from the cup part into the color guide.

[0013] In this case, it is advantageous if the cup part has a conically shaped area that tapers towards the color guidance device.

[0014] It is also advantageous if the lid has an air vent.

[0015] In order to use as little material as possible for the lid, or material that is not very stable, it is suggested that the lid of the cup be arranged in a holder that is either one piece with the spray gun or permanently attached to it.

[0016] Accordingly, the cup part of the cup can also be arranged in a cup holder that is integral to or permanently connected with the spray gun.

[0017] This cup holder can have a net-like or frame-like form. It is advantageous if the cup holder is cup-shaped.

[0018] The color guide can have any shape. It is advantageous if it includes a color needle guide in which a color needle can be positioned. In this case, a pin or a color needle can be arranged in the color needle guide.

[0019] To facilitate the spraying of paint, it is advantageous if the paint guidance device has at least one air passage. In particular, if the paint guidance device also includes the paint nozzle, air channels can thus be precisely arranged relative to the nozzle.

[0020] The cup can also be made up of several parts. However, it is particularly advantageous if the cup consists of only a lid and a cup body.

[0021] A liner can be arranged in the cup part, or the cup part can have a closable air vent.

[0022] The problem underlying the invention is also solved by a spray gun with such a color guidance device.

[0023] This spray gun can have a spray gun body and a paint needle, and in addition, at least one air passage radially spaced in the body to the paint needle.

[0024] An advantageous method for using this color guidance device provides that the color guidance device is attached to the paint needle of a spray gun and the cup slides into a cup holder.

[0025] Advantageous embodiments are shown in the drawing and are explained in more detail below. It shows Fig. 1 a color guidance device permanently attached to a cup part, Fig. 2 a cut through the in Fig. 1 arrangement shown, Fig. 3 a spray gun with the in Fig. 1 arrangement shown, Fig. 4 a spray gun with a holder for a cup part or a lid and Fig. 5 a part of an arrangement with color guidance device, cup holder and lid.

[0026] The one in Fig. The color guidance arrangement shown in Figure 1 consists of the color guidance device 4, the cup part 9 and the lid 7. The transition 19 between the color guidance device 4 and the cup part 9 is a fixed connection, which is created by the fact that the color guidance device 4 and the cup part 9 are formed in one piece.

[0027] In the Fig. In the embodiment shown in Figures 1 to 3, the cup 6 is dimensionally stable. It can therefore be supported by a cup holder 11 or inserted into the spray gun body 17 of the spray gun 12 without a cup holder.

[0028] At the in Fig. In the embodiment shown in Figure 4, a dimensionally stable cup part 20 is attached to the holder 11 and a non-dimensionally stable flexible cup part 21 is arranged in the dimensionally stable cup part.

[0029] The Fig. Figure 5 shows a lid 8 that is firmly connected to the color guide device 5 and stabilized by the cup holder 10. For this purpose, the cup holder 10 is inserted into a receptacle on the color guide device 5 or the spray gun body 17.

[0030] The lid 8 has a conically shaped area 22 that narrows or tapers towards the color guidance device 5.

[0031] The one in Fig. The cup part 20 shown in section 4 has an air opening 23 and the one in Fig. The lid 7 shown in section 2 has an air opening 24. The color guide device 4 is firmly connected to the cup part 9. In the case of the Fig. In the embodiment shown in Figure 4, the color guidance device 4 can be connected to the cup part 20 and / or the flexible cup part 21.

[0032] When using the color guide device, it can be inserted into the base body 17 of a spray gun. In the exemplary embodiment, the color guide device 1, 2, 3 is attached to the paint needle 14 of the spray gun 12 and pushed towards the spray gun base body 17 until it is in the cup holder 10, 11.

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