DE3153120C2 - Machine for treating wall surfaces - Google Patents

Abstract

A treatment machine for wall surfaces has an upright bar (22) which is arranged on an undercarriage, is pivotally mounted in a pivoting frame (18) and on which one or more treatment elements (28) are located. The pivoting frame (18) supports a drive motor (42), by means of which the treatment elements (28) can be moved up and down and/or rotated. The inclination-adjustment device allows adaptation to the respective wall-surface inclination. <IMAGE>

Description

The invention relates to a machine for treating wall surfaces, with a frame that has an upright Has rod on which a friction and / or brush arrangement supporting carrier is longitudinally displaceable is guided and is connected to a drive for its upward and downward movement and / or to which the carrier is rotatably mounted and connected to a rotary drive, as well as to a device for the lateral Moving the frame parallel to the wall surface, the frame being a chassis provided with floor rollers is trained.

A machine of this type, in which the carrier is guided up and down, is disclosed in DE-OS 24 35 547 known. The carrier carries a turret-like indexable head with radial, circumferentially offset arms, to which sponges, containers for washing liquid and a rubber lip are attached, the optional can be swiveled one after the other into the working position. The well-known machine is used for cleaning of windows. If you also wanted to clean wall surfaces, e.g. B. tiled bathrooms or exterior facades use, problems arise when the wall surfaces are not exactly at right angles to the floor. In shower rooms, however, this is often the case because of the water drain on the floor.

Another machine used for cleaning the exterior of

ίο Windows is used especially in high-rise buildings US-PS 33 44 454 known The frame is not designed as a chassis with floor rollers but hangs on ropes that are attached to a carriage that can be moved along horizontal ceiling rails However, ceiling rails are forbidden in rooms whose interior walls have to be cleaned.

The object of the invention is to design a machine of the type mentioned in such a way that it can be used for treatment wall surfaces that are not absolutely perpendicular to the floor are also suitable.

Based on a machine of the type mentioned at the outset, this object is achieved according to the invention solved that the rod is pivotally mounted at the lower end about an axis parallel to the direction of travel is and is connected to a tilt adjustment device and that a swivel frame in the chassis the pivot axis serving to adjust the inclination is pivotably supported by both the rod and the rod carries the drive with the motor and gear connection.

The invention allows the machine to be moved on the floor and wall surfaces of any length to treat, especially to wash and clean, but also to polish or apply to process of material or removal of material. One person is enough to move the machine, thanks to the inclination adjustment device according to the invention, a quick adjustment to the angle! can be made between wall and floor so that the upright bar is exactly parallel to the wall surface is placed, even if the Βυα «; η to the center of the room slightly downhill towards what z. B. is often the case in shower rooms. But also structural irregularities Thanks to the invention, this can be taken into account, especially in the case of walls that are not perpendicular.

Since the machine according to the invention also treats non-perpendicular surfaces, it is effective for cleaning of vehicles, especially railroad cars. But the invention is not just for cleaning usable, but can be used without major

Jo rungen also for removing old paintwork by sanding and brushing and for applying paint or protective films can be used.

The new machine can work fully automatically under program control, as the movements of the treatment devices and the chassis can be derived from a program memory.

Further advantages of the invention are that the working area in terms of height of the treatment device, in particular brush arrangement is exactly adjustable. When using individual large-area Brush plates, these are preferably mounted adjustable in height and the vertical distance between the Bürenplatten is chosen to be smaller than the stroke, so that the working areas when moving up and down of the brush plates overlap each other. Are z. B. Tiles cleaned, so can at bottom dead center of z. B. by an eccentric carrier driven the lower brush plate to the desired

Tile level can be set in the same way as the top one Brush plate in the upper dead center position on the upper edge of the tile. The working height of the machine can be enlarged by adding extension pieces and additional support pieces. thanks to the further embodiment that in the chassis both a drive for reciprocating movement, as well is intended for rotary motion, a slight switch from a treatment with up and down Treatment elements are made in a treatment with rotation treatment elements. You then only need z. B. the eccentric or To interrupt the crankshaft drive of the carrier and to couple the rotary drive connection.

Further features and advantages of the invention are the subject matter of the subclaims.

With reference to the drawing, which represents an embodiment of the invention, this will be described in more detail. It shows

F i g. 1 is a front view of the new cleaning machine,

F i g. 2 is a vertical cross-sectional view of the machine according to Fig. 1,

F i g. 3 is a horizontal sectional view taken along line 3-3 of FIG. 2,

F i g. Figure 4 is a horizontal sectional view taken along line 4-4 of the machine of Figure 4. 2 and

F i g. 5 is a vertical sectional view similar to that of FIG. 2, but in connection with a different one Brush arrangement.

The cleaning machine, generally designated 10, has a washing device 12 and a suction device 14 on. Both devices 12, 14 form a unit during use

The washing device 12 has a chassis 16 in which a swivel frame 18 can be swiveled about a swivel axis 20 is mounted, which lies horizontally and is arranged in the direction of travel of the chassis 16 on the swivel frame 18, a vertical rod 22 of square cross-section is rotatably mounted by means of a ball bearing On the rod 22, a support body 24 is placed, which consists of a box-shaped hollow profile body with Upper wall, partition walls and lower wall consists of these horizontal walls including the partition walls recesses are provided corresponding to the cross section of the rod 22, with a sufficient There is play for relative longitudinal movement. Located on the front of the support body 24 a mounting rail 26, in which a plurality of brush plates 28 are fastened in a height-adjustable manner. These Brush plates 28 have double-T-shaped holders which are guided in the rail 26. The holders extend slightly down over the brush plates 28 and have clamping screws 30 there, as in FIG. 2 in principle The rod 22 is illustrated in the exemplary embodiment is longer than the height of the carrier 24 and has at the upper end a polygonal insertion opening 32, around the rod 22 by attaching an extension piece to be able to extend. A cross bolt (not shown) would be the extension piece on the rod 22 secure. In this way, a further carrier 24 '(FIG. 2) could be placed on the carrier 24, which will generally be shorter than the carrier 24. A plurality of such extension pieces 24 can simply be placed on top of one another be set and threaded on the rod 22.

On the back of the carrier 24, a pin 34 is attached, on which a connecting rod 36 engages the other end of which is connected to a crank pin 38 of a drive pulley 40 which is on the drive shaft an electric motor 42 is attached, which in turn is screwed onto the swivel frame 18

In Fig. 2 is the crank pin 38 in its lowest Position shown Correspondingly, the carrier 24 assumes its lowest position on the rod 22. Does the Motor 42, so there is a constant up and down movement of the carrier 24 with the brush plates 28 on the stationary rod 22 instead and that is the stroke of the Carrier 24 equal to twice the eccentricity of the crank pin 38. The distance between two brush plates 28 is set to a dimension that depends on the The desired working height is dependent. However, this dimension must in any case be smaller than the stroke of the carrier Be 24. The setting is made so that in the lowest position of the carrier (Fig. 2) the lowest brush plate 28 to the lowest level (skirting board) is adjusted, after which the disc 40 is rotated by half a revolution until the pin 38 in its uppermost position: * Then the uppermost brush plstts in the rail i * shifted so far and determined to be aligned with the top edge 44 of the wall 46 to be cleaned. The middle brush plate 28 is then set approximately in the middle between the upper and lower brush plates and The rod 22 is also attached by a stand 48 which is attached to the chassis 16 with its upper end guided in a crosshead 50, which is in a holder 52 of the stand 48 by means of sliding bolts 54 is guided horizontally displaceably transversely to the travel movement and is continuously displaceable, including a threaded spindle 56 is used, which is rotatable by means of a handwheel 58, to the inclination of the rod 22 of the respective To be able to adjust the inclination of the wall surface 46 to be cleaned. Since the holder 52 on the stand 48 is adjustable in height is attached, the crosshead 50 can also cooperate with an extension rod.

On both sides of the rail 26 there is a vertical one Supply pipe 60 fastened adjustable in height by means of clamps. The two pipes 60 are with vo their outlet nozzles 62 are provided, of which those located behind the brush plates 28 by means of sealing plugs can be closed so that only the space between each two brush plates lying outlet nozzles 62 are activated. The two supply pipes 60 are via hoses 64 and a supply pump, not shown, is connected to a supply container 66, which is filled with washing liquid Alternatively, the container 66 can also be filled with a compressed air cushion via a compressor be provided, in which case a shut-off valve is seated in the common outlet line for the hoses 64

The suction device 14 has its own chassis 68, on which a vertical rail 70 is mounted, on which an up and down carriage 72 is mounted by means of three 90 ° offset guide rollers 74, 76 and a drive pinion 78 is mounted, which in a rack the rail engages. The pinion 78 sits on the drive shaft of a Z-motor 80, which is mounted on the carriage 72 The carriage 72 carries on its front side a holder 82 on which a suction nozzle 84 means a telescopic suction nozzle is mounted. The suction mouthpiece 84 becomes flexible by means of a spring 86 held in contact with the wall 46. The suction tube is via a flexible)! , Hose 88 to a storage container 90 connected, in which a negative pressure is maintained. The hose 88 could also be over a suction pump open into the container 90. The suction

mouthpiece 84 has a rectangular suction opening with a small height, but a decisive width. There is a slightly in the middle of the suction opening over the edge of the suction opening protruding wiper lip 92, which consists of flexible material.

It is essential that the suction device 14 can be attached to both sides of the washing device 12 and can be moved together with this. For this purpose, on both sides of the chassis 16 of the washing device 12 similar fastening tabs 94 are provided, each having rearwardly open slots 96, in which fastening bolts 98 fit in, which are provided on the chassis 68 of the suction device 14. The fastening bolts can be designed as screw bolts, so that by means of lever screw pieces a snow attachment is possible.

In the position according to FIG. 3 the suction device is attached to the right side of the washing device. This arrangement is intended for driving to the left. The brush assembly 28 then arrives at a Wall corner, the suction device 14 is decoupled from the washing device and either on the left side of the Frame 16 coupled again or operated separately by hand in the wall corner area.

The crosshead 50 has two lateral brackets 100, the guide slots, which are also open to the rear 102, which can be closed by means of a slide 104 after the rail 70 has been retracted. In this way, even relatively long rails 70 can be held securely thanks to the crosshead 50. In FIG. 1, the suction device is alternatively shown in dash-dotted lines on the opposite side of the washing device 12 illustrated. Here the carriage 72 is in its uppermost position, in which a changeover contact 106 abuts the boom 100 of the crosshead 50 and reverses the Ε motor so that the downward stroke takes place. A corresponding switch 108 is located on the underside of the carriage 72 and causes c; nc reversal of the drive motor when this switch 108 touches the frame 68.

The cleaning machine 10, which consists of washing device 12 and suction device 14, can be operated with a handle 110 are moved on the rear of the washing device 12, either in sections, that is with every full upward or downward stroke of the suction nozzle 84 around its width. An improved version uses a traction drive from the engine 42 of the washing device 12 is derived. As can be seen from FIG Connected shaft of the motor 42 and this gearbox 112 couples the one impeller shaft 114. With a Shift lever 116, the clutch takes place and the gear ratio is selected so that per full upward or downward stroke of the carriage 72 of the suction device 14 a travel distance equal to half the width of the Suction mouthpiece 84 is covered. The gearbox 112 includes a telescopic, not shown Drive shaft, which the pivoting of the swivel frame 18 during the inclination adjustment of the Rod 22 takes into account

In the F i g. 1 to 4, the rod 22 is rotatably mounted. This is in a simplified manner! Embodiment, at which exclusively up and down brush plates 28 are used, dispensable. In an improved However, the machine 10 can also carry out an increase in the upward and downward movement of the wall plates 28 Rotary brushes are equipped for what this rotary bearing is necessary This equipment is below with reference to FIG. 5 described.

If the same machine 10 is to be switched to rotating operation of the washing device 12, this will be the case The crosshead 50 is removed and the carrier 24 with the brush plates 28 is pulled off upwards, with the inserted eccentric pin 38 is also removed from the disk 40. Then on that Rod 22 brush drums 118 attached, the square recesses in their upper and lower walls have according to the rod cross-section. These brush drums 118 are all around on their jacket equipped with bristles, as illustrated on the bottom drum in FIG. Then the The crosshead 50 is brought back into position and the inclination of the rod 22 is adjusted to the inclination of the wall.

The disk 40 is a bevel gear that meshes with a further bevel gear 120, which is connected via a shaft mounted in the swivel frame to a drive gear 122, which in turn engages with an engaging and disengageable cn Zwiscucnrsd 524 : r , which simultaneously with a Gear 126 at the lower end of the rod 22 is engaged. The intermediate gear 124 is seated on a shift fork 128 which is shown in FIG. 5 is shown in its upper functional position and in Figure 2 in the lower inoperative position. Only when operating in rotation according to FIG. 5, the gear 126 is coupled to the rotary drive.

Thanks to the ability to switch from up and down operation tur individual brush plates 28 to rotation operation The machine 10 can be used in a very versatile manner for brush rollers or brush drums 118.

It goes without saying -that the drawings represent the machine only reproduce in principle. In the practical implementation, a much more compact design is achieved. In particular, the containers 66, 90 are not placed one behind the other, but next to or next to or on top of one another arranged so that the width of the device is small enough to pass the device through narrow door openings to be able to drive through. Not shown in the drawing is a cable drum which provides power to the electric motors and pumps

In the case of the rising and falling brush plates, the washing liquid supply can also be fed directly into the brush plates into it via appropriate pipe connections. However, the tubes 60 shown allow a simple conversion to rotary brushes, with the clamps loosened and the pipes on the chassis be inserted into pipe sockets.

For this purpose 4 sheets of drawings

Claims (5)

Patent claims: 1. Machine for treating wall surfaces, with a frame that has an upright bar which a carrier supporting a friction and / or brush arrangement is guided in a longitudinally displaceable manner and is connected to a drive for its upward and downward movement and / or to which of the Support is rotatably mounted and connected to a rotary drive, as well as with a device for the lateral Moving the frame parallel to the wall surface, whereby the frame is provided with floor rollers Chassis is formed, characterized in that the rod (22) at the lower End is mounted pivotably about an axis (20) lying parallel to the direction of travel and with a Inclination adjustment device (50-58) is connected and that in the chassis (16) a swivel frame (18) is mounted pivotably about the tilt adjustment serving pivot axis (20), which both the Rod (22) as well as the drive with motor (42) and gear connection carries 2. Machine according to claim 1, characterized in that the same drive motor (42) is optional with a gear for up and down or with a gear for rotational movement of the carrier (24; 118) can be connected 3. Machine according to claim 1 or 2, characterized in that the shaft of the drive motor (42) for the lifting and lowering movement or the rotary movement of the friction and / or brush assembly via a gearbox (112) can be coupled to the wheel shaft (114) of the chassis (16) 4. Machine after a de. Claims 1 to 3, characterized in that the carrier (24) is a The receiving rail (26) or rail pieces has large brush plates on one or the other (28) are adjustable in height and fixed at a distance from one another. 5. Machine according to one of claims 1 to 3, characterized in that the carrier (28; HS) The top and bottom plates each consist of several support elements placed one on top of the other are penetrated by the rod (22) with sliding play, which has a non-circular cross-section.