EP0394801B1 - Wide press - Google Patents

Abstract

In a wide press for wringing a wet mop cover (2), spread over a holding plate (1), with the aid of a squeezing cylinder (4) using the holding plate (1) as a counter-pressure plate interacting with the squeezing cylinder (4), the radial pressing force relative to the squeezing cylinder (4) and the tangential forces directed perpendicular to said radial pressing force and required for pressing the holding plate (1) through a squeezing channel (6) spread between the squeezing cylinder (4) and pressing-on rollers (5) are absorbed by different components if the pressing-on rollers (5) are attached fixedly to the same frame (3) as the squeezing cylinder (4) and if the holding plate (1) bearing a wet mop cover (2) in each case is pushed through the squeezing channel (6) with the aid of a lever-actuated pushing device (11). <IMAGE>

Description

The invention relates to a wide press for dewatering a wiping device consisting of a holding plate and a wet wiping cover stretched thereon, with a pressing channel for the wiping device formed in a frame between a pressing roller and pressure means arranged above it, and with this associated storage as an insertion aid on the insertion side of the pressing channel. The term "dewatering" in the present context includes the expulsion of liquids of all kinds. Such a wide press is known from DE-A-32 25 734.

In DE-OS 33 16 499 a flat press is described, with the help of which a wet wiping cover clamped on a holder can be pressed out. The covered holder is pressed simultaneously over the entire surface. If a drainage to 40 to 50% of the wet state is to be achieved with this device, so that the cover can absorb new moisture, for example from the floor, a contact pressure of 1 bar on an area of the order of 600 cm² corresponds to an effort of 6000 N required. Such forces can only be applied by hand with the help of complex and costly translations.

With the help of the aforementioned squeeze according to DE-OS 32 25 734, it is possible to restrict the surface of the mop cover to be pressurized to a narrow strip corresponding to the contact surface of the squeeze roller and the holding plate, and to continuously line this region from one longitudinal edge to the opposite with line pressure To move the longitudinal edge of the holding plate and thus the wet mop cover to be drained. For example, a pinch gap area of approximately 10 mm in width and a length of, for example, 600 mm, corresponding to the wet mop cover to be dewatered, can be moved continuously from one edge to the opposite edge of the wet mop cover with the aid of the squeeze roller. The force of the order of 600 N that is then required for dewatering is more manageable in hand-operated household or commercial cleaning devices than ten times the amount for devices that are intended to squeeze out the wet mop cover over the entire surface at the same time.

In the wide press known from the aforementioned DE-OS 32 25 734, the squeeze roller is rotatably mounted on a shaft fixed in a frame and the holding plate carrying the wet mop cover is guided relative to the squeeze roller with the aid of a lever system which absorbs the required pressing force. Such a lever system, which at the same time has to apply pressure forces - radial with respect to the pressure roller - and transport forces - tangential with respect to the pressure roller - naturally requires considerable effort.

The invention has for its object to simplify the design of the wide press of the type mentioned, in which a wet mop cover is ready for use by line printing in the ready-to-use state, so that smooth operation by hand or foot is ensured with minimal manufacturing effort. The solution according to the invention exists for the wide press mentioned at the outset with a press roll firmly mounted in a frame and this at a distance from the thickness of a press channel for pressing the holding plate opposite pressing means and with a arranged on the insertion side of the press channel approximately tangentially to the press roll as an insertion aid in that as Pressure means at least two pressure rollers to be unrolled at a distance from one another on the surface of the holding plate opposite the wet mop cover are mounted on the frame and that on the side of the tray facing away from the pressure channel a pushing device to be brought into effect in the direction of the pressure channel, consisting of a lever-operated, on which Frame-mounted tappet arrangement is provided.

By the invention it is achieved that the forces required for pressing radially with respect to the squeeze roller are to be absorbed by the pressure rollers, while the forces required to pass through the holding plate equipped with the wet mop cover are directed tangentially with respect to the squeeze roller by the lever-operated pushing device be applied. The radial pressure forces are thus directly between the pressure rollers firmly attached to the frame on the one hand and the pressure roller on the other hand, caught. The feed system according to the invention, which is relieved of the high pressure forces, and which should therefore cause the relative movement of the holding plate equipped with the wet mop cover with respect to the press-off channel, can therefore be designed to be correspondingly light and of simple construction. In the sense of a simple construction, two pressure rollers are preferably mounted on the frame in such a way that the rollers can run on essentially smooth parts near the longitudinal ends of the rear side of the holding plate.

According to a further invention, a hand lever which also serves as a carrying handle of the overall device is provided for actuating the pushing device. Such an arrangement has the advantage that an approximately anyway necessary double-function carrying handle can also be designed as an actuating means for the pushing device. However, according to yet another invention, it can also be favorable to provide a foot pedal mounted on the frame for actuating the pushing device. Such an arrangement has the particular advantage that the operator can hold the wiper with both hands on a stick and at the same time activate the wide press with one foot - with an upright posture.

In order to ensure that the holding plate is guided through the pressing channel in an optimal manner, it is advantageous according to yet another invention to design the tray at the same time as a guide means for the plunger of the lifting device provided for pushing the wiper into the pressing channel. It is thereby achieved that the guided plunger of the guided plunger even with an inclined with respect to the axis of the squeeze roller Push device automatically ensure parallelization of the longitudinal edges of the holding plate and the axis of the squeeze roller.

Furthermore, dripping of a dripping wet mop cover is facilitated if the shelf consists of two slide guides attached to the frame adjacent to the longitudinal ends of the squeeze roller. In fact, for proper insertion of the holding plate and wet wiping cover into the press-off channel, it is desirable to bring the tray as close as possible to the press-off roller. However, this can lead to a build-up of dripping and squeezing liquid in front of the press-off channel. For this reason, among other things, it is favorable to provide the tray in the manner specified above only at the longitudinal ends of the pressing roller or holding plate.

Of course, the holding plate carrying the wet mop cover should be flat on the surface facing the cover, so that an appropriate squeezing effect can be achieved. However, since a wet mop cover is not usually of the same thickness everywhere and also dirt particles, for example small stones, can be contained in the wet mop cover, it is preferred according to yet another invention if the squeeze roller has an elastic cover. The squeeze roller should therefore be upholstered in such a way that it can accommodate all the irregularities that usually occur in a wet wiping cover, so that the mutual distance between the squeeze roller and pressure rollers can be preset and correspondingly expensive springs are not required.

The wide press according to the invention makes it possible to have a mopping device in the ready-to-use state, that is to say a wet mop cover to drain directly in connection with the holding plate and handle, if necessary with an intermediate pivot bearing and pivot joint. The pushing device provided according to the invention for guiding the holding plate through the pressing channel can be constructed in the simplest way for the application of the force only in the direction of the advancement through the pressing channel if the area of the frame between the pressure rollers above the inserted holding plate for free passage of one to the holding plate struck stem is formed. The wide press according to the invention then allows a wet wiper, pug or the like of the type indicated to be passed through the wide press in one direction one or more times. Operation is particularly favorable under these circumstances if the pushing device is to be operated with a foot lever which is naturally positioned near the floor, so that any linkage above the pressing zone could be dispensed with.

• Fig. 1 eine Breitpresse mit durch Fußhebel zu betätigender Schubvorrichtung;
• Fig. 2 die Breitpresse nach Fig. 1 mit eingesetztem Wischgerät; und
• Fig. 3 eine Breitpresse mit zugleich als Tragebügel ausgebildetem Handhebel zum Betätigen der Schubvorrichtung.

Details of the invention are explained on the basis of the schematic representation of exemplary embodiments. Show it:

• 1 shows a wide press with pushing device to be actuated by foot lever;
• FIG. 2 shows the wide press according to FIG. 1 with the wiper inserted; and
• Fig. 3 is a wide press with a hand lever designed as a handle for actuating the pusher.

1 and 2 for dewatering a wet wiping cover 2 clamped on a holding plate 1 consists of a frame 3 with a squeeze roller 4 and two above it the distance of the strengths of holding plate 1 and (dewatered) wet wiping cover 2 attached pressure rollers 5. Between the latter and the squeeze roller 4 is therefore a spatially fixed squeeze channel 6. Furthermore, the broad press includes a tray 8, which is arranged on the insertion side 7 of the squeeze channel 6 and is defined as an insertion aid for a mopping device, with a holding plate 1 carrying a wet mop cover 2 to be dewatered Tray 8 consisting of two sliding guides fastened to the frame 3 on the longitudinal ends 9 of the pressing roller 4, which can be equipped according to FIG. 3 with guide channels or rails 10 for plunger 12 to be actuated with the aid of a pushing device generally designated 11.

In the preferred embodiment, two pressure rollers 5 to be rolled on the surface 13 of the holding plate 1 opposite the wet mop cover 2 are used as pressing means assembled from each other on the frame 3. In addition, on the side of the tray 8 facing away from the pressing channel 6, the pushing device 11 to be brought into effect in the direction 14 on the pressing channel 6, to which a lever-operated arrangement of tappets 12 mounted on the frame 3 belongs.

1, a foot lever 16 mounted on the frame 3 on a lever axis 15 is provided for the operation of the pushing device 11. The foot lever 16 can be positioned essentially below the entire remaining arrangement in such a way that it has no spatial disturbance and can be actuated with ease by stepping downward in the direction of the arrow 17 - with a suitable choice of the length of the two lever legs. In use, a wiper consisting of a holding plate 1 and wet wiping cover 2 is still attached to the handle 8 on the handle 18 and is pushed through the pressing channel 6 between the pressing roller 4 and pressure rollers 5 by pressing the foot lever 16 with the tappet 12 in the direction of arrow 14. When passing through the pressing channel 6, any liquid in the wet mop cover 2 - in general water - is squeezed out and preferably collected in a container 19 located below the squeezing arrangement.

In the exemplary embodiment according to FIG. 3, the operation is essentially the same as in FIGS. 1 and 2, but instead of the foot lever 16, a hand lever 20 is provided which can also serve as a carrying handle for the overall device. The hand lever 20 according to FIG. 3 is mounted on a lever axis 15 which is to be fastened directly to a container 19 assigned to the wide press. With the hand lever, preferably via rotary joints 21 (similar to FIGS. 1 and 2), plunger 12 connected, which in turn can apply the necessary tangential force in the direction 14 for pushing a holding plate 1 covered with a wet mop cover 2 through the press-off channel 6 when the hand lever according to FIG. 3 is moved in the direction of arrow 22.

If a wiping device is placed on the shelf 8 when the wide press according to FIG. 3 is actuated, it can likewise be passed through the pressing channel and simply removed on the rear side of the channel without any linkage of the device interfering. The arrangement according to FIGS. 1 and 2 is similarly favorable, where the frame 3 either does not extend appreciably over the height of the pressure rollers 9 or - as shown - is interrupted for the passage of the stem 18. 1 and 2 with a raised but interrupted frame 3 is particularly favorable because the open top bracket 23 of the frame 3 allow the wide press to be carried comfortably.

The mutual distance between the squeeze roller 4 and the pressure rollers 5 is preset to the sum of the thicknesses of the holding plate 1 and the dewatered wet mop cover 2. With one and the same wiper, a single setting is sufficient. If another wiper with different dimensions is to be dewatered, it will generally suffice to adjust the position of the pressure rollers 5 in relation to the frame 3 (FIGS. 1 and 2) or in relation to the container 19 (FIG. 3) accordingly change. For this purpose, adjustable fastening means 24 are provided in both cases. In principle, the actual wide press can be constructed as a frame, which can then be used as an attachment for different containers is suitable. An embodiment in this sense is shown in FIGS. 1 and 2. The container 19 there is fastened to the frame 3 with the aid of simple tabs 25.

Reference symbol list

• 1 = holding plate
• 2 = mop cover
• 3 = frame
• 4 = squeeze roller
• 5 = pressure roller
• 6 = press-off channel
• 7 = introductory side
• 8 = shelf
• 9 = longitudinal end (4)
• 10 = guide rail
• 11 = pusher
• 12 = plunger
• 13 = area (1)
• 14 = arrow direction
• 15 = lever axis
• 16 = foot pedal
• 17 = arrow direction
• 18 = stem
• 19 = container
• 20 = hand lever
• 21 = swivel
• 22 = arrow direction
• 23 = bracket (3)
• 24 = fasteners
• 25 = tab

Claims (7)

1. Wide press for the wringing of a wiper appliance (20), which consists of a retaining plate (1) with a wet-wiping cover stretched thereover, with a squeezing channel (6), which is formed in a frame (3) between a squeezing roller (4) and contact pressure means (5) arranged thereover, for the wiper appliance and a sump (8) associated therewith in defined manner as introduction aid at the introduction side (7) of the squeezing channel (6), characterised thereby, that at least two contact pressure rollers (5), which are to be rolled at a spacing one from the other along on that surface (13) of the retaining plate (1) which lies opposite the wet-wiping cover (2), are mounted as contact pressure means on the frame (3) and that a pushing device (11), which consists of a lever-actuated plunger arrangement (12) borne at the frame (3) and is to be brought into effect through the squeezing channel (6) in direction (14), is provided on that side of the sump (8) which is remote from the squeezing channel (6).
2. Wide press according to claim 1, characterised thereby, that a manual lever (20), which at the same time serves as carrier bracket of the entire device, is provided for the actuation of the pushing device (11).
3. Wide press according to claim 1, characterised thereby, that a foot lever (16), which is borne at the frame (3), is provided for the actuation of the pushing device (11).
4. Wide press according to one of the claims 1 to 3, characterised thereby, that the sump (8) is constructed at the same time as guide means (10) of the plunger (12), which is provided for the insertion of the wiper appliance into the squeezing channel (6), of the pushing device (11).
5. Wide press according to one of the claims 1 to 4, characterised thereby, that the sump (8) consists of two sliding guides fastened at the frame (3) adjacent to the longitudinal ends (9) of the squeezing roller (4).
6. Wide press according to one of the claims 1 to 5, characterised thereby, that the squeezing roller (4) comprises an elastic cover.
7. Wide press according to one of the claims 1 to 6, characterised thereby, that the region of the frame (3) between the contact pressure rollers (5) above the inserted retaining plate (1) is constructed for the free guiding therethrough of a broomstick (18) fastened to the retaining plate (1).

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