EP2409625B1 - Vacuum cleaner, in particular floor vacuum cleaner with a lid-like top - Google Patents

Description

The invention relates to a vacuum cleaner, in particular vacuum cleaner, with a multi-part housing, wherein first housing parts define a dust collection space which is closed by a lid-like upper part, which is pivotally mounted on the housing, and wherein the pivotable mounting means of at least one arranged on the upper part Bow approach and at least one arranged on a different housing part sheet guide takes place.

Underground vacuum cleaners usually have a dust collecting chamber and a blower compartment inside the housing. The dust collecting chamber is used to hold a dust collector, which must be emptied when filled (cyclone separator or filter cartridges) or replaced (dust bag). Especially in vacuum cleaners, which use filter cartridges or dust bags as a separator, the dust collection chamber must be sealed airtight. For this purpose, a lid-like upper part, which is generally pivotally mounted in the rear third of the vacuum cleaner housing. The pivot axis is usually located on a housing surface, which covers the fan room up and also carries operating and display elements. Since in most cases neither the upper part nor the subsequent housing surface are completely flat, no conventional hinge can be used. Hinges are usually used, in which curved hinge arms on the upper part create a distance to the rear housing surface, so that it does not get into the swivel range of the upper part end.

For very strong bulges of the upper part and the housing surface would require very long hinge arms are used with sweeping curvatures. These then dive deep into the housing with the top closed and therefore require a lot of space.

From the DE 44 21 458 C2 It is known to arrange the hinge points vertically displaceable in the housing. As a result, gaps can arise due to undefined closing positions.

From the DE 10 2004 055 514 A1 It is known to arrange the pivot axis of the upper part at the rear end and provide a cutout for the controls. For large vacuum cleaners, this would result in overhanging tops when opened.

From the US 4 554 700 A and from the JP 2000 023888 A Vacuum cleaners are known in which the pivotable mounting is effected by means of at least one arranged on the upper part bow approach and at least one arranged on another housing part sheet guide.

This ensures a sufficient distance between the upper part and the adjacent housing surface when the upper part is open. The transition from the actual upper part to the bow approach is a critical point that is exposed to particularly high loads.

The invention thus raises the problem in a vacuum cleaner of the type mentioned to enhance the transition from the actual upper part to the bow approach.

According to the invention this problem is solved by a Staubsauer with the features of claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

The achievable by using the bow hinge advantages result from the fact that the pivotable storage is carried out by means of at least one arranged on the upper part bow approach and at least one arranged on another housing part sheet guide. By such an arrangement, the virtual pivot point of the joint is moved to a location above the vacuum cleaner housing. The upper part is then moved out during opening with a large distance to the adjacent component, so that even a strongly curved surface does not lead to an undesired contact with the adjacent component. Another advantage arises from the sliding bearing of the joint. If the upper part is opened too far by the operator and then torn out of its joint connection by a strong impact, no damage occurs and it can simply be re-inserted.

In the embodiment according to the invention, the arched projection comprises a first and a second arched part, wherein the first arched part is formed on the upper part and the second arched part is connected as a separately manufactured part with the first arched part. The transition from the actual upper part to the bow approach is a critical point that is exposed to particularly high loads. This area can be strengthened by the two-part structure targeted. In addition, different plastic materials can be used. When the upper part and the molded-on bottom part you will choose a plastic, which meets requirements for external appearance in the first place. The second arch portion, however, may be made of a material which is primarily stable and wear resistant.

To increase the stability and the wear resistance, it is advantageous if both parts of the arch extend in the region of the pivotable mounting over the entire length of the arch extension.

A reinforcement of the transition point from the first arch part to the transition part is achieved, in particular, in that a fastening region, which is fastened to the upper part outside the first arch part, is integrally formed on the second arch part. As a result, a sufficient strength is ensured, especially in this area, when the second arch part is dimensioned according to dimensions and choice of material.

It is particularly advantageous if the bow approach and the bow guide having mutually acting locking means by which the upper part can be locked in an open position. As a result, the user is facilitated the removal of a filled dust bag or a filled filter cassette. In particular, when the locking means located on the locking means is arranged on the second arch part, in this a suitable material and the appropriate shape can be selected.

It is also advantageous if the sliding surface of the arched projection acts as a web arranged on the second arched part. By choosing a web which has a much smaller width than the guide surface, the contact surface of these two sliding partners is minimized. It prevents dirt accumulation, which could affect the smooth running of the guides.

Figur 1

das Gehäuse eines Bodenstaubsaugers in der Draufsicht,

Figur 2

den Abdeckrahmen, die Montageplatte und das geöffnete Oberteil des in Figur 1 dargestellten Gehäuses,

Figur 3

die Montageplatte und das geöffnete Oberteil in einer anderen Perspektive,

Figur 4

die Montageplatte und das geschlossene Oberteil,

Figur 5

einen Ausschnitt aus dem Oberteil im Bereich des ersten Bogenteils,

Figur 6

das zweite Bogenteil,

Figur 7

einen Ausschnitt aus dem Oberteil mit den miteinander verrasteten Bogenteilen

Figur 8

einen Längsschnitt durch das Staubsaugergehäuse im Bereich des Bogenabschnitts bei geschlossenem Oberteil,

Figur 9

einen Querschnitt durch den Bogenabschnitt.

An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows

FIG. 1

the housing of a vacuum cleaner in plan view,

FIG. 2

the cover frame, the mounting plate and the open top of the in FIG. 1 illustrated housing,

FIG. 3

the mounting plate and the open top in a different perspective,

FIG. 4

the mounting plate and the closed upper part,

FIG. 5

a section of the upper part in the region of the first arch part,

FIG. 6

the second arch part,

FIG. 7

a section of the upper part with the latched together arch parts

FIG. 8

a longitudinal section through the vacuum cleaner housing in the region of the arc section with the upper part closed,

FIG. 9

a cross section through the arc section.

FIG. 1 It comprises a lower part 3, a cover frame 4, an upper part 5, a cap 6 and a rear wall 7. Inside the vacuum cleaner 1 is arranged as a further housing part, a mounting plate 8, which in the FIGS. 3 and 4 is recognizable. Cover frame 4 and lower part 3 form one Dust collecting space 9 (see FIG. 2 ), introduced into the dirt-laden air and filtered by means of a dust bag, not shown. The lid-like upper part 5 is pivotally mounted on the mounting plate 8 and serves to seal the dust collecting space 9. Furthermore, in the upper part storage compartments 10 (see FIG. 4 ) arranged for not shown suction accessories, which can be closed by a lid 11. In the FIGS. 2 to 4 this cover 11 is omitted.

For pivotal mounting two sheet approaches 12 are arranged on the upper part. These are recorded by sheet guides 13, which are integrally formed on the mounting plate 8. The Figures 2 and 3 show the open top 5 in different perspectives, in the FIG. 4 is the upper part 5 closed. Especially in the FIGS. 3 and 4 the course of movement of the sheet approaches 12 in the sheet guides 13 can be seen. These two bearing components form a telescopic plain bearing with a circular segment-shaped path of movement. As a result, the actual pivot axis of the upper part 5 is displaced upwards out of the housing, which causes the rear edge 14 of the upper part 5 to move away from the cap 6 during opening already at the beginning of the pivoting movement and consequently to pivot the edge 14 into the cap area is avoided.

The FIGS. 5 to 9 show the structure of the Bogenansätze12, is shown in the right in the direction of travel of the vacuum cleaner bow approach 12. A bow projection 12 consists of two arch parts 15 and 16, which are locked together. The first arch parts 15 are made in one piece with the upper part 5 made of plastic, here is preferably used for housing surfaces suitable amorphous thermoplastic such as acrylonitrile-butadiene-styrene (ABS). The second arch parts 16 are not visible to the operator when the top 5 is closed. Therefore, it is preferable to use a high-molecular-weight thermoplastic resin having spring properties, for example, polyoxymethylene is suitable. From the synopsis of FIGS. 5 to 8 It can be seen that the second arch part 16 is connected by latching both with the first arch part 15 and with the upper part 5. As a result, the transition region 17 is covered by the upper part 5 to the first arch part 15 of the second arch part 16 and thereby stabilized. The second arch part 16 is constructed so as to surround the first arch part 15 over its entire length (see FIG FIGS. 7 and 9 ) and thus both arch parts 15 and 16 extend in the region of the pivotable mounting over the entire length of the arc projection 12. On the second arch part 16 two locking lugs 18 and 19 are formed, which engage behind two webs 20 and 21 in the interior of the first arch part 15 (see FIG. 8 ). Two further latching elements 22 and 23 are arranged in an integrally formed fastening region 24, which lies outside the connection region with the first arched part 15 (see FIG FIGS. 5 to 7 ). A first latching element 22 is clamped to the edge 25 of an air outlet 26. A second Locking element 23 engages in a latching opening 27 on the upper part. Additional stabilization is achieved by a pocket 33 which receives the fastening region 24 in a form-fitting manner.

By the above-described connection of the first and second sheet parts 15 and 16 arise on the outer sides of the upper part of two sheet approaches 12, which slide in sheet guides 13 on the mounting plate 8. The guides 13 are U-shaped and directed with the open side in each case to Staubsaugeräußeren. Thus, the two legs 28 and 29 (see also FIG. 3 ) the sliding surfaces of the sheet guides 13. From the cross section of the bow lug 12 ( FIG. 9 ) it can be seen that its sliding surface is limited to a thin web 30 of the second arch part 16. As a result, the sliding friction is reduced and any impurities can be deposited on the lower legs 29 outside the sliding surface.

In the FIGS. 6 to 8 It can be seen that on the second arch part 16, a resilient locking lug 31 is formed. In the course of the opening movement of the upper part 5, this locking lug 31 slides at the end of the pivoting movement in a receptacle 32 on the sheet guide 13 and holds the upper part 5 in the open position. As a result, both hands of the operator for dust bag removal are free.

Claims (7)

1. Vacuum cleaner (1), in particular a floor-type vacuum cleaner, comprising a multipart housing (2), first housing parts (3, 4) defining a dust-collecting chamber (9) which can be closed by a lid-like upper part (5) which is pivotally mounted on the housing (2), and the pivotable mounting taking place by means of at least one curved attachment (12) arranged on the upper part (5) and at least one curved guide part (13) arranged on another housing part,
   characterised in that
   the curved attachment (12) comprises a first and a second curved part (15, 16), the first curved part (15) being integrally formed on the upper part (5) and the second curved part (16) being connected to the first curved part (15) as a separately manufactured part.
2. Vacuum cleaner (1) according to claim 1,
   characterised in that
   the curved parts (15, 16) are made of different plastics materials.
3. Vacuum cleaner (1) according to either claim 1 or claim 2,
   characterised in that
   both curved parts (15, 16) extend over the entire length of the curved attachment (12) in the region of the pivotable mounting.
4. Vacuum cleaner (1) according to any of claims 1 to 3,
   characterised in that
   a fixing region (24) is integrally formed on the second curved part (16) and is fixed on the upper part (5) outside the first curved part (15).
5. Vacuum cleaner (1) according to at least one of the preceding claims,
   characterised in that
   the curved attachment (12) and the curved guide part (13) comprise interacting latching means (31, 32), by means of which the upper part (5) can be locked in an open position.
6. Vacuum cleaner (1) according to at least one of the preceding claims,
   characterised in that
   the latching means (31) on the curved attachment (12) is arranged on the second curved part (16).
7. Vacuum cleaner (1) according to at least one of the preceding claims,
   characterised in that
   a web (30), arranged on the second curved part (16), functions as a sliding surface for the curved attachment (12).

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