Cleaning trolley

Abstract

A cleaning trolley includes a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the cleaning trolley may include a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.

Claims

1. A cleaning trolley, comprising: (i) a base plate; (ii) at least four upright hollow profiles for fixing cross walls arranged on the base plate, each of the four upright hollow profiles including at least one groove, wherein each cross wall consists of two wall elements removably arranged back-to-back to each other to form two opposed edges, each opposed edge defined by an area with reduced thickness and a terminal beaded edge shaped to be fixably inserted into the groove of one of the four upright hollow profiles; and (iii) an upper frame for securing the at least four upright hollow profiles.

2. The cleaning trolley according to claim 1, wherein at least one of the wall elements includes one or more seats, each of the one or more seats including a slot and a hole, and wherein a support plate for an element to be fixed to the cleaning trolley includes a tongue arranged along one edge of the support plate for insertion into the slot of one of the seats; and a drop-in pin arranged at the back of the support plate for a snap-fit insertion into the hole of one of the seats.

3. The cleaning trolley according to claim 1, wherein the modular unit further includes lateral doors having hinges comprised of a fixed hinge leaf and a moving hinge leaf which is integral with the door, and wherein the hinges are self-closing and provide two rest positions separated from each other by 180?.

4. The cleaning trolley according to claim 3, wherein the two rest positions of the hinges are determined by an uneven profile of a support flange from which a hinge pin of the fixed hinge leaf protrudes and by an uneven profile of a rim surrounding a hinge hole of a hinge pin bushing of the moving hinge leaf, and wherein the uneven profile of the support flange and the uneven profile of the rim each include two opposite lowest points separated by peaks that are substantially complementary to each other and provide a mating interface.

5. The cleaning trolley according to claim 3, wherein the fixed hinge leaf comprises a flat section with a drop-in pin for a snap-fit insertion into a hole of one of the four upright hollow profiles and an extension having a shape of a cramp for an enveloping grip with the edge of the one of the four upright hollow profiles.

6. The cleaning trolley according to claim 1, wherein the modular unit further includes a handle bar provided with one or more braces configured for removable attachment to one of the two wall elements.

7. The cleaning trolley according to claim 6, wherein the braces include the handle bar at a height of from 50 to 200 cm above floor level.

8. The cleaning trolley according to claim 1, wherein the upper frame includes an upper lid assembly comprising a frame and horizontally arranged sliding lids connected thereto for covering the top side of the trolley.

9. The cleaning trolley according to claim 1, wherein each of the two wall elements includes at least one seat, each seat configured to receive a support plate including one of a hook, a handle, a flat surface, and a clamp for holding a mop handle.

10. The cleaning trolley according to claim 1, wherein the modular unit includes two crosswalls arranged opposite each other to form a drawer cabinet, and wherein one of the two wall elements of each of the two crosswalls includes a plurality of rails for guiding one or more drawers.

11. The cleaning trolley according to claim 10, wherein the one or more drawers include at least one of a tablet, a first drawer, a second drawer having 1.5 to 2.0 fold of a height of the first drawer and a third drawer having a smaller height than the first drawer.

12. The cleaning trolley according to claim 1, wherein the modular unit includes three crosswalls arranged to form two drawer cabinets.

13. The cleaning trolley according to claim 1, wherein the modular unit includes a drawer cabinet.

Description

DESCRIPTION OF THE FIGURES

(1) FIG. 1 is a side view of the cleaning trolley according to the present invention.

(2) FIG. 2 shows a rear view of the cleaning trolley.

(3) FIG. 3 shows a sectional view of a hollow profile and a cross wall.

(4) FIG. 4 shows a sectional view of a cross wall.

(5) FIG. 5 shows a sectional view of the wall element shown in FIG. 4.

(6) FIG. 6 shows a sectional view of a hollow profile with a hinge for the lateral doors of the cleaning trolley.

(7) FIG. 7 shows a side view of a hinge for the lateral doors of the cleaning trolley.

(8) FIG. 1 is a side view of the cleaning trolley according to the present invention. The cleaning trolley 1 comprises a base plate 2 which is supported by rolling members (not shown). Upright hollow profiles 3 are arranged on the base plate 2. The upright hollow profiles 3 have the purpose to fix the cross walls (not shown). Further, an upper frame 4 for securing the upright hollow profiles is provided. The cleaning trolley shown in FIG. 1 has a modular design and comprises a primary section 5 and a secondary section 6, wherein each section is having a base plate 2 supported by rolling members (not shown). The primary section 5 and the secondary section 6 are removably connected by a connection mechanism. The connection mechanism contains a pedal 7 pivotably attached to the bottom side of the base plate 2 of the secondary section 6, a further pedal-like element 8 pivotally attached to the bottom side of the base plate 2 of the secondary section 6 and provided with a first claw (not shown). In connection position the first claw is engaged with the base plate 2 of the primary section 5. The pedal-like element 8 is further connected to a vertically attached actuation rod (not shown) which again is connected to a pivotally attached second claw (not shown), which in connection position is engaged with the upper frame 4 of the primary section 5.

(9) The cleaning trolley is also provided with a handle bar 9 having one or more support plates for sliding into guides or with drop-in pin for a snap-fit insertion in order to removably attach the handle bar 9 to a wall element. The handle bar 9 is further provided with one or more braces 10 also provided with plates for sliding into guides or is provided with drop-in pin for a snap-fit insertion for removable attachment to a wall element.

(10) The cleaning trolley shown in the figure further features a drawer cabinet having two vertical sections 11 of drawers located next to each other. One section of drawers is hidden by a lateral door 12. The drawer cabinet is formed by wall elements having a plurality of rails 13 for guiding drawers 14 or tablets 14a.

(11) The upper frame 4 is provided with an upper lid assembly 15 comprising a frame and horizontally arranged sliding lids (not shown) connected thereto for covering the top side of the trolley. The upper lid assembly 15 is connected to the upper frame 4 by support plates or link plates 39 which are inserted into seats by sliding insertion which seats are located in the upper frame 4.

(12) The cleaning trolley shown in the figure is equipped with buckets 16 resting on a tablet 14a. The buckets 16 are accessible from the top side.

(13) FIG. 2 shows a rear view of the cleaning trolley, where the handle bar may be attached. For attachment of the handle bar and its supporting braces the wall element 17 is provided with seats 18 for inserting the support plates of the handle bar and the braces by snap-fit insertion into the seats 18 with the help of drop-in pins.

(14) The upper frame 4 also comprises seats for sliding insertion of support plates or link plates 39 for fixing the upper lid assembly 15 to the upper frame 4. The upper lid assembly 15 comprises sliding lids 40 covering the top side of the cleaning trolley.

(15) FIG. 3 shows a cross section of a hollow profile 3 and a cross wall 19. The cross wall 19 consists of two separate wall elements 17a and 17b removably arranged back-to-back to each other and fixed by the upright hollow profiles 3. The wall elements 17a and 17b comprise two opposed edges each provided with reduced thickness 20 and a terminal beaded edge 21 for insertion into the hollow profile 3. The hollow profile 3 comprises a groove 22 which matches with the shape of the edges (area with reduced thickness 20 and terminal beaded edge 21) of two wall elements 17a and 17b arranged back-to-back to each other.

(16) FIG. 4 shows a sectional view of a cross wall 19. The cross wall 19 consists of two separate wall elements 17a and 17b removably arranged back-to-back to each other. The wall element 17a has one or more seats for inserting an element to be fixed 23. The element to be fixed 23 as shown in the figure is represented by a support plate 24 and comprises a hook 25, a tongue 26 arranged along one edge of the support plate 24 for insertion into a slot arranged in the seat, as well as a drop-in pin 27 arranged at the back of the support plate for a snap-fit insertion into a hole arranged in the seat of wall element 17a. The wall element 17b is provided with a plurality of rails 13 for guiding drawers.

(17) FIG. 5 shows a sectional view of the wall element 17a shown in FIG. 4 without the element to be fixed. The wall element 17a has one or more seats 18 for inserting an element to be fixed. The seat 18 comprises a slot 28 for the insertion of a tongue arranged along one edge of the support plate of the element to be fixed, as well as a hole 29 for the snap-in insertion of a drop-in pin arranged at the back of the support plate.

(18) FIG. 6 shows a sectional view of a hollow profile 3 with a hinge for the lateral doors of the cleaning trolley. The hinges for the lateral doors comprise a fixed hinge leaf 30 and a moving hinge leaf (not shown). The fixed hinge leaf 30 shown in FIG. 6 comprises a flat section 31 with a drop-in pin 27 for a snap-fit insertion into a hole of the hollow profile 3. Further, the flat section 31 is provided with an extension 32 having the shape of a cramp for an enveloping grip with the edge of the rectangular hollow profile 3. The extension 32 is located on the side opposed to the side where the hinge pin 33 is arranged. The hinge pin 33 is surrounded by the support flange 35. The figure does not show the insertion of the cross wall (which however is necessarily present at the given location of this cross sectional view) and which location is indicated by arrow A.

(19) FIG. 7 shows a side view of a hinge for the lateral doors of the cleaning trolley. The lateral doors are provided with hinges comprising a fixed hinge leaf 30 (shown partly) and a moving hinge leaf 34 (shown partly). The hinges are constructed to be self-closing by the provision of two rest positions separated from each other by 180?. The two rest positions of the hinges are determined by an uneven or weavy profile of the support flange 35 from which the hinge pin 33 of the fixed hinge leaf 30 protrudes and by the uneven profile of the rim 36 surrounding the hinge hole 37 of the hinge pin bushing 38 of the moving hinge leaf 34. Due to this construction the two uneven or weavy profiles contain two opposite lowest points (A) separated by peaks (B) matching to each other, which results in a movement of the door towards one of the two possible rest positions.

REFERENCE SIGNS

(20) 1 cleaning trolley 2 base plate 3 hollow profiles 4 upper frame 5 primary section 6 secondary section 7 pedal 8 pedal-like element 9 handle bar 10 braces 11 vertical sections 12 lateral door 13 plurality of rails 13 for guiding drawers 14 drawers 14a tablets 15 upper lid assembly 16 bucket 17 wall element 18 seat 19 cross wall 20 reduced thickness 21 terminal beaded edge 22 groove 23 element to be fixed 24 support plate 25 hook 26 tongue 27 drop-in pin 28 slot 29 hole 30 fixed hinge leaf 31 flat section 32 extension 33 hinge pin 34 moving hinge leaf 35 support flange 36 rim 37 hinge hole 38 hinge pin bushing 39 support plates or link plates 40 sliding lids