SE460013B - DEVICE MEANS TO REPRESENT DISPOSED PARTICLES, SCREWS ETC. FROM A SUBSTRATE - Google Patents

Description

460 013 ken a source known per se and therefore not shown in the drawing is connected to supply a negative pressure to the nozzle. The connection 4 is pressure-tightly connected to a connecting channel 3, which advantageously consists of a pipe 3 closed at both ends in a pressure-tight manner. The pipe 3 is advantageously slotted in the longitudinal direction of the pipe along its entire or almost its entire length. Said slot size in the circumferential direction of the tube 3 is selected slightly smaller than what is in fact required for the closed channels, which are described in more detail below, in order to be pressed against the outer surfaces of the channels in a pressure-tight connection without leaks.

Nozzle channels island. Sh, Sc. etc is in the case shown according to fig. 4 formed by a body 1 of empirically reinforced rubber, the underside of which according to Fig. 4 is flat and the upper side of which is corrugated. Said upper side with the wave tops is covered by a suitably sheet-shaped material, for example by a relatively rigid but ddck flexible cloth 2 of rubber. As can be seen from Fig. 3, the fabric 2 is given such an overlap 2a that the latter more than bridges the distance between the channels 5a, 5b, So, etc. other, sucking ends and the substrate 7, from which material is to be transported away:.

The channels 5a, Sb, Sc, etc are - as shown in fig. 4 - located along a substantially straight line and when abutting against the substrate 7, adjacent channels Sa and 5b and Sa and Se, respectively, will cooperate and also communicate with each other, ie a very effective suction effect is obtained, substantially independent of the appearance of the substrate 7.

Av fig. 3 shows that the overlap 2a is advantageously placed - seen in the direction of movement of the nozzle - along the channels Sa, Sb, So etc.

Of course, even if the overlap 2a is relatively large, it is also necessary to move the nozzle in the opposite direction.

The fabric 2 does not have to be attached to the wave tops of the body 1 but is retained by the negative pressure. When accumulating dirt or the like in one or more channels Sa, Sb, Se etc, it is therefore easy to lift on the cloth 2, whereby residual debris is easily removed.

Variants of the invention are of course possible. For example, according to Fig. 3, the suction ends of the channels Sa, Sh, Sc, etc. are cut off at right angles to the longitudinal directions of the channels and the channels are in this case led at an acute angle to the base 7, but instead the channels can of course be cut obliquely and held in relatively close to the right angle to the 460 013 substrate 7.

Suitable materials with low friction against the substrate 7 may for the body 1 and quken 2, for example, instead be plastic materials of the polypropylene type En.

Claims (8)

460 013 Patent claims Device for removing particles, liquids etc. from a substrate (7) by means of negative pressure, which device comprises a negative pressure common to several channels (Sa, Sb, 5c, etc.) to the channels (5a, Sh, 50, etc.) ) one end distributing connecting duct (3), which is arranged to be connected (4) to a required negative pressure supply to the ducts (fi a, 5b, 5c, etc.) one end supply source, characterized in that the ducts (Sa, Sb, Se, etc.) other ends are oblique to the substrate (7) from which material is to be removed, in order to keep the other ends of the channels (Sa, 5b, So, etc.) open to the substrate (7) at abutment therefrom and in that at least the space between said other ends and the base (7) which is thereby scanned is bridged by a, preferably somewhat resilient part (2a), which is arranged to seal from the channels (Sa, Sb, 5c, m fl) other ends against the substrate (7). IN Device according to claim 1, characterized in that said channels (Sa, 5b, Sc. Etc.) are located next to each other along a straight line, preferably so that - seen along said line - a channel merges into the two closest to the canals. Device according to claim 1 or 2, characterized in that the part (2a) is located - seen in the intended direction of movement of the device on the substrate (7) - after the other ends of the channels (Sa, Sb, 5c, etc.) . 4.. Device according to one of the preceding claims, characterized in that the elasticity of the part (2a) is so adapted. that it (2a) follows the substrate (7). Device according to any one of the preceding claims with substantially perpendicular to the longitudinal direction arranged, other ends of the channels (Sa, 5b, 5c, etc.), characterized in that the channels (Sa, Sb, Sc, etc.) are held at an acute angle to the substrate (7) and by the part (2a) with overlapping bridging the distance from the channels (Sa, Sb, 5c, etc.) to the substrate (7) _. -_ ~ n Device according to any one of the preceding claims, 460 013, characterized in that said channels (Sa, Sh, Se, etc.) are formed by a preferably somewhat elastic, wavy body, the side facing away from the wave crests is advantageously flat, and by one, preferably loosely over the wave crests team? sheet (2), which is essentially in? to be retained against the wave crests by the negative pressure. Device according to any one of the preceding claims, k ä n n e 'c e c k n a d of a + t said connecting channel consists of ef? longitudinally slotted pipe (3), J 'všlken grinds said channels (Sa, Sb. 5 :, etc.) one end is_hollow. Device according to claim 1, characterized in that both the body (1) and the sheet (2) are made of flexible, durable materials. ~