EP1199971B1 - Mobile sweeping machine - Google Patents

Abstract

In order to facilitate emptying of the dirt collection container in a mobile sweeping machine with a rotationally driven rotary brush which is mounted in a housing, a dirt collection container which can be detachably connected to the housing and with a dirt inlet opening located adjacent to the rotary brush in the dirt collection container, it is proposed that the dirt collection container is configured as a drawer, which can be laterally inserted into a guide of the housing and can be fixed in its inserted position relative to the housing.

Description

The invention relates to a mobile sweeper with a in a housing mounted, rotary driven brush roller, one with the Detachably connectable dirt collection container and with a the dirt inlet opening adjacent to the brush roller in the dirt collecting container, the dirt container as a drawer is formed, which can be inserted laterally into a guide of the housing is formed by ledge-shaped projections immersed in a groove is, and in their retracted position relative to the housing is definable.

There are sweepers of this type known, for example, manually With the help of a handle-shaped handle along a surface to be cleaned are movable. For emptying the ingested The housing can be filled with dirt particles be kinked so that through the then released opening of the Dirt collecting container can be emptied. This sets a relatively complicated construction, even when emptying handling difficult because the entire sweeper to the emptying point must be transported.

In US 1,972,870 a generic mobile sweeper is described which has a substantially rectangular cross section and therefore problems when used in angles and corners can cause.

Starting from this prior art, it is the object of the invention to improve a generic device so that with this even hard-to-reach areas can be cleaned well.

This task is described in a sweeper of the beginning Art solved according to the invention in that the groove and the strip-shaped Projections in the top view of the sweeper are semicircular. This will not just get a pleasing shape for the sweeper, but it is too ensures that with this sweeper even difficult to access Places can be cleaned well.

It is beneficial if on the housing and on the dirt collector Rollers are arranged, which carry the sweeper overall, so that the sweeper through the housing on the one hand and the drawer on the other is built up.

In a preferred embodiment it is provided that the guide is arranged on a flat support part of the housing, which from the working part receiving the brush roller and its drive of the housing running essentially parallel to the driving surface extends.

In particular, the carrier part of the drawer on the top in essentially completely cover.

It is advantageous if the guide is inserted into a groove strip-shaped projections is formed.

Especially with semicircular guides it is difficult to make the guide elements reliable merge, as these only shortly before the end of the The insertion process.

In order to remedy this, it is particularly advantageous when on the drawer towards the case pointing projection is arranged, which in a Guide of the housing dips and the drawer when inserting leads before the strip-shaped Enter protrusions into the groove. The user has thereby the advantage that he during the insertion movement of the Drawer does not have to pay special attention to that too immerse the strip-shaped guide elements in the grooves.

It is particularly advantageous if the projection is through one extending in the direction of insertion of the drawer Half-shell is formed, which is in a trough-shaped Groove inserted at the top of the housing becomes. Such a half-shell can have the shape of a half Have pipe socket and in a correspondingly shaped Immerse the trough-shaped recess.

The trough-shaped depression can be the upper edge have half-shell guide surfaces, so that the half-shell in the trough-shaped depression also against pivoting about the longitudinal axis of the trough-shaped depression is secured.

It is particularly advantageous if the upper edge the half-shell one rising from the bottom of the half-shell Section and a subsequent parallel to the direction of insertion of the drawer Section. When inserting the half shell automatically results in the trough-shaped depression centering the drawer opposite the Housing, in particular the drawer is also a longitudinal axis parallel to the insertion direction in twisted the position in which the strip-shaped projections can engage in the groove.

In particular, it can be provided that the half-shell open at the end at its end facing away from the housing the half shell thus forms a handle opening, in which the user can intervene around the drawer to handle.

It is favorable if the trough-shaped depression in a receiving recess for a grip element passes over, so that the trough-shaped depression has another function takes over, namely that of a recording room for one Grip element, for example for the foot of a stem, with which the sweeper is moved.

It can be provided that at the top of the A handle element is pivotally mounted on the housing, in a final position in the recess and into the subsequent trough-shaped depression and the immersed in the half-shell. The foot part a rod-shaped handle element, for example can save space on the top of the Sweeper be included when the sweeper is not in operation and must be stowed away.

In a preferred embodiment, that to fix the drawer on the housing an elastic Detent is provided.

Preferably, the elastic catch at the bottom of the Half-shell be arranged and a recess on the reach behind the trough-shaped recess.

In a particularly advantageous embodiment provided that the elastic catch by a Area of the bottom of the half-shell is formed, the through two U-shaped incisions from the rest of the half-shell is separated and only over two between the ends the opposite incisions, deformable webs connected to the bottom of the half-shell remains. Such an elastic catch is very simply by making the two U-shaped cuts form from the bottom of the half-shell, the narrow, remaining webs are corresponding to the Choice of the material of the half-shell, for example one elastic plastic material, so far deformable that the remaining floor section to a minor extent the rest of the bottom of the half-shell pivotable becomes.

It is advantageous if the trough-shaped depression the pivoting movement at a distance below the half-shell the elastic stop limiting stop trains so that it is ensured that the elastic catch does not close when opening badly deformed and thereby damaged.

In addition, it can be provided that spring elements between Housing and drawer are arranged, which the Load the drawer in the pull-out direction. Thereby the drawer is released when the elastic catch is released inevitably pushed out of the locked position, so that it can only be locked again, when the drawer is deliberately inserted into the housing becomes. This ensures that when you open the drawer a short press on the elastic catch is sufficient and that the drawer then remains unlocked and can be easily pulled out of the housing can.

It is advantageous if the spring elements at the same time are interlocking leaders.

In a preferred embodiment, further be provided that the drawer on the half-shell opposite underside of a handle recess having. This puts the drawer on the top and at the bottom in the same way with a Provide depression so that the user can draw the drawer based on these two wells particularly advantageous can grasp and handle.

Figur 1:

eine Draufsicht auf ein Kehrgerät mit eingesetzter Schublade;

Figur 2:

eine Schnittansicht längs Linie 2-2 in Figur 1;

Figur 3

eine Ansicht des Kehrgeräts der Figur 1 von der Schublade aus gesehen;

Figur 4

eine Ansicht ähnlich Figur 1 mit aus dem Gehäuse herausgezogener Schublade und

Figur 5:

eine Teilseitenansicht des Gehäuses mit herausgezogener Schublade.

The following description of preferred embodiments of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:

Figure 1:

a plan view of a sweeper with an inserted drawer;

Figure 2:

a sectional view taken along line 2-2 in Figure 1;

Figure 3

a view of the sweeper of Figure 1 seen from the drawer;

Figure 4

a view similar to Figure 1 with the drawer pulled out of the housing and

Figure 5:

a partial side view of the housing with the drawer pulled out.

The sweeper 1 shown in the drawing includes a housing 2 with a rotatably mounted therein, after Brush roller 3 protruding from the bottom of the housing 2 and with rollers 4 and one connected to the housing 2 Dirt container 5, which also carries rollers 6, so that the sweeper 1 as a whole to be cleaned Move the surface transversely to the axis of rotation of the brush roller 3 can be. The brush roller 3 is by a Drive 7 set in rotation via a belt 8, this Drive 7 can be a battery-powered device, for example Be electric motor, in other embodiments the drive 7 could also be a transmission that the rotational movement of the rollers 4 on the brush roller 3 transfers.

The housing 2 comprises a working part 9, which is the brush roller 3 and the drive 7, and one in parallel to the driving level of the sweeper 1 at the top the working part 9 protruding, substantially plate-shaped Carrier part 10, which immediately afterwards arranged on the working part 9 dirt container 5 completely covered.

This dirt container 5 is designed alö drawer and only on its end facing working part 9 11 open. The dirt container carries on the top 5 a semicircular, radially inward protruding guide bar 12, which at completely the working part 9 approximate dirt container 5 in a semicircular guide groove 13 on the outer edge of the Carrier part 10 engages. This will make the dirt container 5 held on the support member 10, in one Position in which the open end face 11 of the drawer-shaped Dirt container 5 with a dirt outlet opening 14 on the dirt container 5 facing Side of the working part 9 of the housing 2 is opposite. From the brush roller 3 by its rotary movement particles of dirt picked up by the surface to be cleaned can through the dirt outlet 14 via the open end face 11 into the interior of the Dirt container 5.

The working part 9 of the housing 2 carries on its top an annular, oval recess 15, which to both sides in a trough-shaped, rectilinear, parallel to the direction of travel of the sweeper 1 Indentation 16 or 17 merges, both indentations 16 and 17 each to the edge of the housing 2 run. This creates a recording space for the fork-shaped foot 18 of a rod-shaped handle 19, the one running transversely to the direction of travel Rotation axis in the middle of the oval recess 15 pivotally mounted on the top of the housing 2 is and in its two end positions in the oval Depression 15 and the subsequent depression 16 or the oval recess 15 and the subsequent one Well 17 can be added. These end positions are mainly needed when that Sweeper must be stowed after the end of operation, in operation, the handle 19 is in one position pivoted, in which it runs diagonally upwards, so that with this handle 19 the sweeper 1st can be moved along the surface to be cleaned.

The recess 17, which is in the carrier part 10 of the housing 2 extends is semicircular in cross section formed, the flat top 20 of the carrier part 10th protrudes slightly into the cross section of this semicircular Indentation 17 and forms with its underside a horizontal, flat guide surface 21, which laterally closes the recess 17 at the top.

On the dirt container 5 is one on the top Shaped open upper shell 22, which is in the direction of insertion of the dirt container 5 extends in Cross-section is semicircular and their Dimensions are chosen so that the half-shell 22 at Insert the dirt container 5 into the trough-shaped Indentation, 17 immersed and with its outer wall on the inner wall of this groove-shaped depression 17th is applied.

The upper edge 23 of the half-shell 22 has one on the free End of the half-shell 22 in the area of its bottom surface 24 beginning and rising section 25 and an adjoining one parallel to the direction of insertion trending section 26, this section 26 of the upper edge 23 is when inserted Dirt container 5 on the guide surface 21 of the recess 17 on. As a result, the dirt container 5 experiences when Insert a guide and centering so that the Guide bar 12 when the Dirt container 5 easily into the guide groove 13 intervenes, special adjustment movements are for the Users do not need to do this even if the dirt container 5 tilted or tilted to the housing 2 is introduced, it is during the insertion movement by immersing the half-shell 22 in the trough-shaped Well 17 aligned.

There are in the bottom surface 24 of the half-shell 22 two U-shaped incisions 27, 28 with their ends opposite each other and narrow bridges between them, Leave 29, 30 of the floor material. Through this Incisions 27 and 28 become part of the bottom surface 24 formed, which serves as a locking element 31. This Latching element carries the working part 9 of the housing on it 2 facing end at its bottom one Latch 32, when fully inserted Dirt container 5 in a locking opening 33 in the channel-shaped Well 17 is immersed (FIG. 2) and thus secures the dirt container 5 against being pulled out.

The webs 29 and 30 are very narrow and form one Torsion hinge around the longitudinal axis of these webs the locking element 31 can be pivoted slightly, as can be seen from the illustration in FIG. 5. During this pivoting, the locking lug 32 is removed from the Detent opening 33 excavated so that the dirt container 5th can be pulled out of the inserted position.

At the bottom of the recess 17 adjoins the locking opening 33 an elongated recess 34, which at Swiveling the locking element 31 in its open position receives the lowered part of the locking element 31 and at the same time the pivoting movement of the locking element 31 so limited that damage to the webs 29th and 30 is avoided by pivoting too much. This recess 34 thus forms a stop for limitation the pivoting angle of the locking element 31 (FIG 2).

On both sides next to the half-shell 22 are on Dirt container 5 further guide elements 35 arranged, which are short channels with a square cross section are formed, parallel to the half-shell 22nd extend and at her the working part 9 of the housing 2 facing end face 36 wear an opening 37. In these openings 37 occur when fully inserted of the dirt container 5 obliquely bent wall elements 38 a, which is held on the carrier part 10 of the housing 2 are and which point towards the dirt container 5 (Figures 1 and 4). These wall elements 38 are elastic deformable so that when entering the Openings 37 of the guide elements 35 not only these center, but also an elastic force on this exercise in the direction of pulling out the dirt container 5 is directed. As a result, the dirt container 5 when the locking element is fully inserted and locked 31 preloaded as soon as that Detent element 31 is released, therefore the dirt container 5 slightly pushed out so that the springback Locking element no longer behind the locking lug 32 can intervene, so the locking remains released. This also has the consequence that the dirt container 5th reliable in operation and in the precisely specified Position connected to the housing 2 of the sweeper 1 is.

The groove-shaped depression 17 lies on the underside of the dirt container 5 a further depression 39 opposite, the gripping together with the recess 17 the dirt container 5 facilitated. The user can the fingers both in the recess 39 as also put in the recess 37 and thus the between these two depressions part of the dirt container grasp at hand and so the dirt container 5 handle reliably, be it for emptying, be it into the housing 2.

The components of the sweeper 1 described are simple producible, they are preferably made of plastic and they are easily releasable to each other connect so that handling compared to known Sweepers of this type is made considerably easier. In particular can the dirt container 5 by simple Sliding movement connected to the housing 2 and through simply press the locking element 31 again be separated so that an emptying alone Transport of the dirt container 5 can be done The sweeper itself does not have to go to the emptying point be transported.

Claims (18)

1. A mobile sweeper (1) comprising a rotatably driven brush roller (3) mounted in a housing (2), a dirt-collecting container (5) detachably connectable to the housing (2), and a dirt inlet opening provided in the dirt-collecting container (5) adjacent to the brush roller (3), wherein the dirt-collecting container is formed as a drawer (5) which is laterally insertable into a guide of the housing (2), the guide being formed by strip-type projections (12) extending into a groove (13), and which is securable relative to the housing (2) in its inserted position, characterised in that the groove (13) and the strip-type projections (12) are semicircular when viewed from above the sweeper.
2. A sweeper according to claim 1, characterised in that rollers (4, 6), which together carry the sweeper (1), are arranged on the housing (2) and the dirt-collecting container (5) respectively.
3. A sweeper according to claim 1 or 2, characterised in that the guide (13) is arranged on a flat supporting part (10) of the housing (2), the supporting part (10) extending away from the working part (9) of the housing (2), containing the brush roller (3) and its drive (7, 8), substantially parallel to the ground.
4. A sweeper according to claim 3, characterised in that the supporting part (10) substantially entirely covers the upper surface of the drawer (5).
5. A sweeper according to any one of the preceding claims, characterised in that a projection (22) pointing towards the housing (2) is arranged on the drawer (5) and extends into a guide (17) of the housing (2), thereby guiding the drawer (5) while it is being inserted before the strip-type projections (12) enter the groove (13).
6. A sweeper according to claim 5, characterised in that the projection is formed by a half-shell (22) extending in the insertion direction of the drawer (5) and inserted into a trough-shaped recess (17) on the upper surface of the housing (2).
7. A sweeper according to claim 6, characterised in that the trough-shaped recess (17) has guide surfaces (21) engaging over the upper edge (23) of the half-shell (22).
8. A sweeper according to claim 7, characterised in that the upper edge (23) of the half-shell (22) has a portion (25) rising from the bottom (24) of the half-shell (22) and an adjoining portion (26) extending parallel to the pushing direction of the drawer (5).
9. A sweeper according to any one of claims 6 to 8, characterised in that the half-shell (22) is open at its end remote from the housing (2).
10. A sweeper according to any one of claims 6 to 9, characterised in that the trough-shaped recess (17) merges into a holding recess (15, 16) for a gripping member (18, 19).
11. A sweeper according to claim 10, characterised in that a gripping member (18, 19) is pivotably mounted on the upper surface of the housing (2) and, in one end position, extends into the holding recess (15) and into the adjoining trough-shaped recess (17) and the half-shell (22) inserted therein.
12. A sweeper according to any one of the preceding claims, characterised in that a resilient detent (31) is provided for securing the drawer (5) to the housing (2).
13. A sweeper according to any one of claims 6 to 11 and according to claim 14, characterised in that the resilient detent (31) is arranged on the bottom (24) of the half-shell (22) and engages behind an offset (33) on the trough-shaped recess (17).
14. A sweeper according to claim 13, characterised in that the resilient detent (31) is formed by a region of the bottom (24) of the half-shell (22) which is separated from the rest of the half-shell (22) by two U-shaped incisions (28) and only remains connected to the bottom (24) of the half-shell (22) by two deformable bridge pieces (29, 30) lying between the ends of the opposing incisions (27, 28).
15. A sweeper according to claim 14, characterised in that the trough-shaped recess (17) forms a stop (34) spaced below the half-shell (22) and limiting the pivoting movement of the resilient detent (31).
16. A sweeper according to any one of the preceding claims, characterised in that resilient members (38) are arranged between the housing (2) and the drawer (5) and act upon the drawer (5) in the removal direction.
17. A sweeper according to claim 16, characterised in that the resilient members (38) are simultaneously mutually engaging guide members.
18. A sweeper according to any one of claims 6 to 17, characterised in that the drawer (5) has a gripping recess (39) on its underside opposite the half-shell (22).

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