EP2659815B1 - Canister vacuum cleaner with a storing position - Google Patents

Description

Field of the invention

The invention relates to a canister vacuum cleaner with a canister vacuum cleaner housing to which a suction hose can be coupled, the canister vacuum cleaner housing occupy a suction position and a different storage position from the suction position and the Kanisterstaubsaugergehäuse has a front, a bottom side and rear side, the rear side in the storage position as a storage site suitable is.

Background of the invention

From the publication DE 198 05 561 A1 is a canister vacuum cleaner is known, which is tilted after carried out suction from its lying position by 90 ° in its storage position. In this storage position, the canister vacuum cleaner housing rests on the corresponding peripheral locations of the wheels and the free end of the lid member. Thus, the canister vacuum cleaner can be placed in its storage position on the wheels and the free end of the lid part.

The publication DE 10 2007 046 552 A1 101 discloses a canister vacuum cleaner in which at least one transversely projecting from the rear side rib member is arranged on the rear side, which is provided when erecting the housing on the rear side as a footing. Conveniently, a stable footprint is thus provided when the device is placed in the unused state on the tail side. The surface of the rear side comprises two part halves, each with a group of several rib elements.

The publication DE 10 2008 022 321 A1 shows a canister vacuum cleaner with a housing lower part along which wheels for moving the canister vacuum cleaner along a bottom surface are stored. On four shelves, the canister vacuum cleaner in a storage position, which is tilted relative to the operating position by 90 °, placed on a floor surface. In the storage position of the canister vacuum cleaner this rests on the four shelves, and the wheels, and the steering wheels are spaced to the bottom surface. The canister vacuum cleaner can not be moved in the storage position. This storage position can occupy the canister vacuum cleaner, in particular during transport, in which case it is ensured that it does not move unintentionally, as could be the case in its operating position.

From the utility model DE 94 21 384 U1 a floor cleaning device is known in which preferably five freely rotatable balls are provided on the bottom of the device, so that four of the five balls is mounted at corner portions of the device base and a ball approximately in the center of the device base. The ground contact points of all balls in the unloaded state lie in the same plane.

EP 681 806 A2 shows a canister vacuum cleaner with a front wheel, two main wheels and two rear wheels, which are attached to the underside of the canister vacuum cleaner housing.

The Japanese patent application JP H08 - 56 873 A describes a vacuum cleaner comprising a dust collecting space, a blower compartment and a suction opening, which is arranged in front of the dust collecting space and communicates with the dust collecting space. A hose can be detachably attached to the suction connection. At the lower portion of the main body of the nipple, a front wheel is provided at the front, and central gears are provided on both sides of a substantially central portion of the main body of the nipple, and behind the central wheels, there is formed an inclined bottom rising rearwardly. In addition, a rear auxiliary wheel is provided in the rear region of the inclined bottom. If the hose is not attached to the suction port, the center of gravity of the main body of the nipple is located behind the line connecting the support point of the central wheel on the bottom surface and the axis of the central wheel. When the weight of the hose is applied to the suction port, the center of gravity of the main body of the vacuum cleaner is located in front of the line that aligns the bearing point of the center wheel with the axis of the ground Zentralrads connects. When the main body of the vacuum cleaner is raised, the main body rests on the bottom surface with two lower bearing surfaces and two upper bearing surfaces.

The problem underlying the invention

The invention is based on the object to provide a canister vacuum cleaner, which is improved over the prior art.

Inventive solution

The reference numbers in all claims have no limiting effect, but are only intended to improve their readability.

The object underlying the invention is achieved by a canister vacuum cleaner according to claim 1.

A canister vacuum cleaner according to the invention is a household appliance for cleaning rooms. A canister vacuum cleaner usually comprises a housing, a suction hose which can be coupled thereto and an electric motor arranged in the housing. The suction hose may be connected to a suction tube having a suction nozzle at one end. A canister vacuum cleaner may be a bagged canister vacuum cleaner or use a bagless technique, such as a cyclone separator.

A suction position according to the invention is the operating position of the canister vacuum cleaner. In the suction position, the canister vacuum cleaner can be pulled behind the user and as a result, the user by moving the suction hose to rid a room from dust. In the suction position, the rear side is spaced from the ground of the room to be cleaned.

A storage position according to the invention is the position in which the canister vacuum cleaner is stored. In the storage position, the rear side is in contact with a substrate via parking side contact areas.

Abstellseitekontaktbereiche are within the meaning of the invention, those areas which are in contact with the ground in the storage position at the rear. A Abstellseitekaktaktbereich may include a plurality of contact surfaces that may rest on the floor.

A bottom side is in the context of the invention, the side of the canister vacuum cleaner, the surface normal in the suction position is substantially parallel to the vertical. Accordingly, the bottom side extends in the suction position substantially parallel to the surface to be sucked underground, while it extends in the storage position of the canister vacuum cleaner housing substantially perpendicular to the ground.

Due to the fact that at least five Abstellseitenkontaktbereiche, comprising one or more contact surfaces are present on the canister vacuum cleaner at the rear, an improved stability can be achieved for the canister vacuum cleaner in the storage position. The canister vacuum cleaner can be stored more stable on the ground, so that falling over in the storage position is less likely. In addition, there may be the advantage that, if the canister vacuum cleaner falls to the ground with the rear side down, the impact force is distributed better over the at least five Abstellseitekontaktbereiche on the ground, so that the likelihood that the ground is damaged by the impact. It can also be an advantage that the weight of the canister vacuum cleaner in the storage position can be transmitted uniformly over all contact surfaces of Abstellseitenkontaktbereiche on the ground, which can reduce weight accumulation in soft floors during prolonged storage.

At least one Abstellseitenkontaktbereich in the suction position of the canister vacuum cleaner housing serves as a holder for a suction pipe, which is mounted on the suction hose. The advantage may be that it is possible to dispense with an additional holder part for mounting the suction tube. Thus, the manufacture of a canister vacuum cleaner can be simplified and production costs can be reduced become.

Preferred embodiment of the invention

Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.

In a preferred embodiment, at most ten Abstellseitenkontaktbereiche present on the rear side. The Abstellseitekontaktbereiche may have one or more contact surfaces to make contact in the storage position of the canister vacuum cleaner to the ground. Because there are at least five but not more than ten Abstellseitenkontaktbereiche, the advantage can be achieved that the canister vacuum cleaner in the storage position has increased stability, but still the production costs remain low. However, should it be deemed necessary, there may be a different number of Abstellseitenkontaktbereichen, for example, at most nine Abstellseitenkontaktbereiche. More preferably, at most eight Abstellseitenkontaktbereiche available. Again particularly preferably, at most seven Abstellseitenkontaktbereiche are present on the rear side. Again, however, particularly preferably at most six Abstellseitenkontaktbereiche available, again particularly preferably exactly five Abstellseitenkontaktbereiche. With exactly five Abstellseitenkontaktbereichen the advantage can be achieved that a particularly favorable ratio between optimized stability in the storage position and low production costs is achieved.

In a preferred embodiment, the contact surfaces of the Abstellseitenkontaktbereiche lie together in a plane. Thus, it can be achieved that with a flat Abstelluntergrund all Abstellseitenkontaktbereiche via their contact surfaces can make good contact with the ground. This can provide the advantage that the weight of the canister vacuum cleaner is evenly distributed to the ground, and thus a better load sharing is possible. Alternatively, however, the contact surfaces of the Abstellseitenkontaktbereiche can also be at different levels, so that can be achieved on uneven floors, that the canister vacuum cleaner can take a secure position in the storage position despite the bumps.

In a particularly preferred embodiment, the center of gravity axis of the canister vacuum cleaner runs in the storage position along the front-rear direction seen through the geometric center of the plane spanned by them and parallel to their surface normal. By this construction, the advantage can be achieved that the canister vacuum cleaner gets a particularly secure state in the storage position. If the center of gravity axis of the canister vacuum cleaner runs in the storage position along the front-rear direction as seen through the geometric center of the plane defined by them and parallel to their surface normal, it may be much more difficult for the canister vacuum to fall over. Alternatively, however, the center of gravity axis can also run differently than through the geometric center of the plane defined by them and parallel to their surface normal, if this results in advantages for the stability of the canister vacuum cleaner in the storage position. For example, the center of gravity axis may pass through the spanned area such that it is closer to a majority of the pitch side contact areas. In this case, the stability in the storage position can also be improved.

In a preferred embodiment, the Abstellseiteenkontaktbereiche seen along the front-rear direction are arranged axially symmetrically to each other. This can have the advantage that the stability of the canister vacuum cleaner in the storage position is particularly good. If the Abstellseitenkontaktbereiche seen along the front-rear direction seen arranged axially symmetrically, the stability can be equally pronounced in all directions.

In a preferred embodiment, the Abstellseitenkontaktbereiche lie together on the radius of a circle. This arrangement may allow a particularly favorable weight distribution is achieved on the ground. By way of example, the at least five shutoff side contact areas can be arranged at the rear so that two or more of the shutoff side contact areas near the center of gravity of the canister vacuum cleaner are in the storage position and thus the weight of the canister vacuum cleaner can be better distributed. Instead of on the radius of a circle However, the Abstellseitekontaktbereiche may also lie on the perimeter of an ellipse, a triangle, a rectangle, a square, a pentagon, a star or other geometric figure. This can be advantageous if, by design, the rear side of the canister vacuum cleaner does not permit the attachment side contact areas to be mounted on the radius of a circle.

In a preferred embodiment, the Abstellseitenkontaktbereiche lie on the corners of a regular pentagon. This also follows at the same time that the Abstellseitenkontaktbereiche lie on the radius of a circle and they are arranged axisymmetric to each other. This particular embodiment is especially preferred when there are exactly five shutoff contact areas. If the Abstellseitenkontaktbereiche then lie on the corners of a regular pentagon, it can be advantageously achieved that the tilt angle of the canister vacuum cleaner in the storage position is relatively small, which is particularly advantageous for the stability of the canister vacuum cleaner. By the same distances between the Abstellseitenkontaktbereichen on the corners of a regular pentagon can also be ensured with advantage that the stability in the storage position is equally pronounced in any spatial direction radially to the center of gravity of the canister vacuum cleaner in the storage position.

In a preferred embodiment, the axis of symmetry of the regular pentagon in the suction position is perpendicular as seen along the front-rear direction. As a result, the advantage can be achieved that, viewed from this perspective, uppermost side contact area can also take on additional functions. In addition, this arrangement of Abstellseitenkontaktbereiche look particularly aesthetic.

In a preferred embodiment, at least one Abstellseitenkontaktbereich on at least one in a cross-section circular arc-shaped contact surface. Such a circular contact surface can have the advantage that the contact between canister vacuum cleaner and ground in the storage position can be made particularly well. In addition, a circular contact surface can be particularly simple and inexpensive to manufacture. In addition, a circular-arc-shaped contact surface allows an almost punctiform edition of Canister vacuum cleaner over this Abstellseiteekontaktbereich, so that in a plurality of circular contact surfaces in the respective Abstellseitenkontaktbereichen a particularly good stability of the canister vacuum cleaner can be achieved. Accordingly, a plurality of Abstellseitenkontaktbereiche may have a cross-section circular arc-shaped contact surface. It is particularly preferred that all Abstellseitenkontaktbereiche have a cross-section circular arc-shaped contact surface. Also, all or individual Abstellseitenkontaktbereiche may have a plurality of circular arc-shaped contact surfaces in a cross section. However, the contact surfaces do not necessarily have to be absolutely circular-arc-shaped, but may also be flat or punctiform, or for example have a relief structure. A circular-arc-shaped contact surface may be, for example, the circumferential line of a wheel which projects beyond the canister vacuum cleaner housing on the rear side, or a plastic projection on the canister vacuum cleaner housing, which has a circular arc in cross-section.

In a preferred embodiment, the contact surfaces of the Abstellseitenkontaktbereiche against the canister vacuum cleaner housing are rotationally fixed. This can be achieved that a drop of the canister vacuum cleaner in the storage position is less likely. However, some or all of the shutoff side contact areas may be rotatable with respect to the canister vacuum cleaner housing. This would be the case, for example, if, as described above, running surfaces of wheels of the canister vacuum cleaner in the storage position are contact surfaces in Abstellseitenkontaktbereichen.

In a preferred embodiment, at least one contact surface in a Abstellseitenkontaktbereich is integrally connected to the canister vacuum cleaner housing. This can have the advantage that the production of the canister vacuum cleaner with Abstellseitenkontaktbereichen can be done very easily and inexpensively. For example, the housing of the canister vacuum cleaner can be cast in such a way that the shutoff side contact areas are cast with their contact surfaces directly together with the housing. However, the contact surfaces in the Abstellseitenkontaktbereichen can also be glued to the canister vacuum cleaner housing, or be molded onto this. If you want to make the contact surfaces in Abstellseitenkontaktbereichen interchangeable, but the contact surfaces can also be solved with the Canister vacuum cleaner housing be connected, for example by screwing, plugging or similar methods. An advantage may then be that damaged or dirty contact surfaces can be replaced. It is particularly preferred that all contact surfaces of Abstellseitenkontaktbereiche are integrally connected to the canister vacuum cleaner housing. This can make the manufacturing process of the canister vacuum cleaner particularly simple and inexpensive.

In a preferred embodiment, in the suction position of the canister vacuum cleaner housing farthest from the bottom side remote Abstellseitenenkontaktbereich can serve as a holder for a suction tube. This Abstellseitenekontaktbereich can be particularly easy to reach for the user, so that the operation of the canister vacuum cleaner can be facilitated. In principle, however, any Abstellflächenkontaktbereich comes into question.

It is again particularly preferred that the Abstellseitekontaktbereich, which can serve as a holder for the suction hose attached to the suction tube, having a guide rail which comprises a first guide rail portion which is open at both ends and whose cross section tapers in a funnel shape, and at its tapered end a second guide rail section adjoins the end remote from the first guide rail section. By means of this embodiment it can be achieved that the suction tube can be fastened particularly reliably with the suction hose. For example, the user can simply insert the suction tube, which is provided with suitable fastening materials, in the suction position of the canister vacuum cleaner vertically from above into the correspondingly shaped Abstellseitenenkontaktbereich so that he can easily put the suction hose out of hand during brief interruption of the suction process.

In a preferred embodiment, wheels are arranged on the bottom side. If wheels are arranged on the bottom side, the advantage can be achieved that the canister vacuum cleaner in the suction position can be moved particularly easily by the user over the ground. Also, wheels are easy to manufacture and widely used in canister vacuum technology, so that the production of such a canister vacuum can be simple and inexpensive. Alternatively, balls, runners or an air cushion can be arranged on the bottom side instead of wheels be so that also a good displacement of the canister vacuum cleaner can be achieved on the ground. A particular advantage that can result from the use of wheels is, as described above, that the wheels themselves can serve as Abstellseitekontaktbereiche. This is made possible in particular if the circumferential line of two wheels extends beyond the rear side of the canister vacuum cleaner housing. Also balls as a wheel set can of course be used in this way at the rear as contact surfaces.

In a particularly preferred embodiment, at least one Abstellseitenkontaktbereich is also a wheel well of one of the wheels on the bottom side at the same time. This can have the advantage that the production and installation of additional Abstellseiteenkontaktbereiche can be omitted, and the wheel well so that both the function of the cover of the wheels, as well as the function of a Abstellseiten contact surface can take over. This can make a canister vacuum cleaner cheaper and easier to produce. In a particularly preferred embodiment, exactly two wheel arches of wheels on the bottom side Abstellseitenkontaktbereiche the canister vacuum cleaner according to the invention.

Brief description of the drawings

Further advantageous embodiments of the invention will be described in more detail below with reference to embodiments illustrated in the drawings, to which the invention is not limited.

Figur 1

eine perspektivische Schrägaufsicht des Hecks eines erfindungsgemäßen Kanisterstaubsaugers;

Figur 2

eine Aufsicht auf das Heck des erfindungsgemäßen Kanisterstaubsaugers entlang der Front-Heck-Richtung des Kanisterstaubsaugergehäuses;

Figur 3

eine Seitenansicht des erfindungsgemäßen Kanisterstaubsaugers in der Aufbewahrungsstellung;

Figur 4

eine Aufsicht auf den erfindungsgemäßen Kanisterstaubsauger entlang der lotrechten in der Saugstellung des Kanisterstaubsaugergehäuses.

They show schematically:

FIG. 1

a perspective oblique view of the rear of a canister vacuum cleaner according to the invention;

FIG. 2

a plan view of the rear of the canister vacuum cleaner according to the invention along the front-rear direction of the canister vacuum cleaner housing;

FIG. 3

a side view of the canister vacuum cleaner according to the invention in the storage position;

FIG. 4

a plan view of the canister vacuum cleaner according to the invention along the vertical in the suction position of the canister vacuum cleaner housing.

Detailed description of embodiments of the invention

The FIGS. 1 to 4 show a possible embodiment of the invention. In FIG. 1 It can be seen that the canister vacuum cleaner (1) according to the invention is a device comprising a canister vacuum cleaner housing (2) to which a suction hose (3) can be coupled. The canister vacuum cleaner housing (2) has a front side (4), to which the suction hose (3) can be coupled, a bottom side (5), are arranged on the wheels (6) and a rear side (7), which in the present case five Abstellseitenkontaktbereiche (8a, 8b, 8c, 8d) having corresponding contact surfaces. In the operating position of the canister vacuum cleaner (1), the rear side (7) is spaced from a substrate (not shown). The canister vacuum cleaner (1) can then be pulled or pushed over the ground by means of the wheels (6), which are in contact with the ground. In the storage position, the canister vacuum cleaner (1) with the rear side (7) is placed as a storage side on the ground. This position is especially in FIG. 3 to recognize.

So that the canister vacuum cleaner (1) in the storage position has a particularly secure state, the contact surfaces of the five Abstellseitenkontaktbereiche (8a, 8b, 8c, 8d, 8e) lie together in a plane. In addition, they span a circular surface, so lie on its peripheral line, and the gravity axis of the canister vacuum cleaner (1) runs along the front-rear direction seen perpendicularly through the center of this circle. In particular, in FIG. 2 to recognize that the Abstellseiteenkontaktbereiche (8a, 8b, 8c, 8d, 8e) seen along the front-rear direction are arranged axially symmetrical to each other and that they lie on the corners of a regular pentagon. This is the symmetry axis of the regular pentagon, as one also in FIG. 2 can recognize, seen in the suction position shown there along the front-rear direction perpendicular. In the FIGS. 1 and 4 It can be seen particularly clearly that the contact surfaces in the Abstellseitenkontaktbereichen (8a, 8b, 8c, 8d, 8e) are partially formed in a circular arc in cross-section. In the present embodiment, all Abstellseitenkontaktbereiche (8a, 8b, 8c, 8d, 8e) relative to the canister vacuum cleaner housing (2) rotatably and integrally connected to it.

One of the Abstellseitekontaktbereiche (8a) is used in the suction position of the canister vacuum cleaner housing (2) as a holder for a suction pipe, which is attached to the suction hose (3). This is especially evident in the Figures 1 and 2 , This Abstellseitenekontaktbereich (8a) comprises a first guide rail portion (9) which is open at both ends and whose cross-section tapers in a funnel shape, and at the tapered end of which a second guide rail portion (10) adjoins the end remote from the first guide rail portion (9) closed is. As can be seen in the figures, serve in the storage position two of the wheel arches (11) of the canister vacuum cleaner housing rear side as Abstellseitegontaktbereiche (8c, 8d) with respective contact surfaces.

By the canister vacuum cleaner according to the invention (1), a canister vacuum cleaner (1) can be improved with a storage position so that its stability in the storage position over the prior art is improved. By housing parts that have multiple tasks, the stability of the canister vacuum cleaner (1) can be improved. Thus, a canister vacuum cleaner (1) cheaper and easier to produce, because some separate support elements can be omitted. For the user, there may be the advantage that a suction pipe in the suction position of the canister vacuum cleaner housing (2) can be mounted in a simplified manner on the canister vacuum cleaner housing (2). Thus, the operation of the canister vacuum cleaner (1) can be facilitated.

LIST OF REFERENCE NUMBERS

1

canister Vacuums

2

Canister vacuum cleaner housing

3

suction

4

front

5

bottom side

6

bikes

7

rear side

8a, 8b, 8c, 8d, 8e

Abstellseitenkontaktbereiche

9

First guide rail section

10

Second guide rail section

11

wheelhouses

Claims (14)

1. Canister vacuum cleaner (1) with a canister vacuum cleaner housing (2), to which a suction hose (3) can be coupled, wherein the canister vacuum cleaner housing (2) can assume a suction position and a storing position which differs from the suction position and the canister vacuum cleaner housing (2) has a front side (4), a base side (5) and a rear side (7), wherein in the storing position the rear side (7) is suitable as a support side, characterised in that at least five support side contact areas (8a, 8b, 8c, 8d, 8e) are present on the rear side, wherein in the suction position of the canister vacuum cleaner housing (2) at least one support side contact area (8a, 8b, 8c, 8d, 8e) is used as a support for a suction pipe which is attached to the suction hose (3).
2. Canister vacuum cleaner (1) according to claim 1, characterised in that at most ten support side contact areas (8a, 8b, 8c, 8d, 8e) are present on the rear side.
3. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that contact surfaces of the support side contact areas (8a, 8b, 8c, 8d, 8e) lie together in one plane.
4. Canister vacuum cleaner (1) according to claim 3, characterised in that the axis of gravity of the canister vacuum cleaner (1) in the storing position viewed along the front-rear direction runs through the geometric centre point of the plane covered by support side contact areas (8a, 8b, 8c, 8d, 8e) and parallel to their surface normals.
5. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that the support side contact areas (8a, 8b, 8c, 8d, 8e) are arranged in axial symmetry with one another viewed along the front-rear direction.
6. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that the support side contact areas (8a, 8b, 8c, 8d, 8e) lie together on the radius of a circle.
7. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that five of the support side contact areas (8a, 8b, 8c, 8d, 8e) form the corners of a regular polygon.
8. Canister vacuum cleaner (1) according to claim 7, characterised in that the axis of symmetry of the regular polygon in the suction position runs perpendicular viewed along the front-rear direction.
9. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that at least one support side contact area (8a, 8b, 8c, 8d, 8e) has at least contact surface which has a circular arc shape cross-sectionally.
10. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that the contact surfaces of the support side contact areas (8a, 8b, 8c, 8d, 8e) are torque proof with respect to the canister vacuum cleaner housing.
11. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that at least one contact surface in at least one support side contact area (8a, 8b, 8c, 8d, 8e) is connected in one piece with the canister vacuum cleaner housing.
12. Canister vacuum cleaner (1) according to claim 11, characterised in that the support side contact area (8a, 8b, 8c, 8d, 8e), which can be used as a support for the suction pipe attached to the suction hose (3), has a guide rail, which comprises a first guide rail section (9), which is open at both ends and the cross-section of which tapers in the manner of a funnel, and to the tapered end of which a second guide rail section (10) connects, the end of which disposed at a distance from the first guide rail section (9) is closed.
13. Canister vacuum cleaner (1) according to one of the preceding claims, characterised in that wheels (6) are arranged on the base side.
14. Canister vacuum cleaner (1) according to claim 13, characterised in that at least one support side contact area (8a, 8b, 8c, 8d, 8e) is simultaneously also a wheel arch (11) of one of the wheels (6) on the base side (5).

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