Dust Detection Device Worn on the Human Body

A dust detection device, in particular a dust extraction device, for cleaning the air, in particular from wood dust, is configured to be worn around the waist of a user of the dust detection device.

Skip to: Description  ·  Claims  · Patent History  ·  Patent History
Description

The invention relates to a dust detection device worn on the human body.

PRIOR ART Disclosure of the Invention

An advantage of the invention is a dust detection device which is worn around the hips and is placed on the hips of a user or worn around the hips of a user. The full freedom of movement in the upper region of the users torso is advantageously ensured here.

The dust detection device always keeps up with the movement of the user. This has the advantage of a particularly flexible dust detection device.

By means of the features cited in the dependent claims, advantageous developments of the dust detection device according to the main claim are possible.

In an advantageous manner, at least one hose connection element can be arranged on the dust detection device at a left end or at a right end of the dust detection device, wherein at least one suction hose is fastenable to the hose connection element of the dust detection device, and the suction hose is couplable to a portable power tool.

This has the advantage that a user can be both right-handed and left-handed and can work ergonomically with the portable power tool and the dust detection device fastened thereto.

In an advantageous manner, at least one dust-collecting device, in particular a dust bag, is arranged on the hose connection element of the dust detection device. However, the dust-collecting device may also be configured as a dust box. This has the advantage that the function of dust collection and a filtering function are realized together.

Dust extraction and air cleaned therewith can therefore be realized in a structurally simple and cost-effective manner.

The dust detection device comprises at least one of the following components, wherein the list does not have to be complete:

    • a hose connection element
    • a valve element
    • a dust bag
    • a motor
    • a turbine
    • an electronics unit
    • a power supply
    • a battery interface

The dust detection device advantageously at least partially surrounds a space which is completely filled by a user while wearing the dust detection device. High wearing comfort can thus be advantageously achieved.

In the embodiment according to the invention of the dust detection device, a transversal axis and a ventral axis divide the space theoretically into a ventral left quadrant I, a dorsal left quadrant II, a dorsal right quadrant III and a ventral right quadrant IV. Particularly advantageously, a center of gravity is located on the transversal axis during wearing of the dust detection device and extends in each case by the same amount into the ventral left quadrant I and the ventral right quadrant IV. This increases the ergonomics and the wearing comfort of the dust detection device.

Further advantages and expedient embodiments can be gathered from the description of the figures and the drawings.

DRAWINGS

In the drawings:

FIG. 1: is a schematic illustration of a user with a dust detection device according to the invention and a portable power tool,

FIG. 2: is a schematic illustration of a dust detection device according to the invention and a user,

FIG. 3: is a schematic illustration of an embodiment of the dust detection device according to the invention,

FIG. 4: is a schematic illustration of a second embodiment of the dust detection device according to the invention,

FIG. 5: is a schematic illustration of a third embodiment of the dust detection device according to the invention,

FIG. 6: is a schematic illustration of a dust detection device according to the invention with pivot points,

FIG. 7: is a schematic illustration of a dust detection device according to the invention with an HMI and a communication module,

FIG. 8: is a schematic illustration of a dust detection device according to the invention with a belt closure.

 DESCRIPTION

The same reference signs are used for the same components appearing in the different exemplary embodiments.

FIG. 1 shows a dust detection device 10 which can be placed around the hips of a user 12. The dust detection device 10 is supported during wearing on the hip region of the user 12, and therefore particularly fatigue-free working is permitted since this body region is particularly suitable for absorbing forces and loads. The dust detection device 10 is suitable for cleaning ambient air, in particular the sucked-up air. The dust detection device 10 is particularly suitable for cleaning the air of wood dust.

A suction hose 14 is arranged on the dust detection device 10. The suction hose 14 is couplable to a portable power tool 18. The portable power tool 18 can be an eccentric sander, an orbital sander, a delta sander, a belt sander, a jigsaw, a circular saw, a router, a hammer drill or an angle grinder. However, it is also conceivable for the dust detection device 10 to serve as a replacement of an upright vacuum cleaner and/or cylinder vacuum cleaner.

The dust detection device 10 always keeps up with the movement of the user 12. This has the advantage of a particularly flexible dust detection device 10.

In order to fasten the suction hose 14 to the dust detection device 10, a hose connection element 20 is attached to a left end 19 of the dust detection device 10. The suction hose 14 is fastenable to the hose connection element 20 of the dust detection device 10. The hose connection element 20 is composed of a hard material and is attached, preferably rotatably, to the dust detection device 10. The hardness of the material is here of the type such that the diameter of the connected suction tube remains unchanged whether dust is or is not being sucked up.

The dust detection device 10 extends here in the transversal plane T of the human body, as is apparent in FIG. 2. The dust detection device 10 here comprises a left end 19 and a right end 21. The hose connection element 20 is attachable to the left end 19 of the dust detection device 10. By rotation of the dust detection device 10 in the direction of the arrow, the left end 19 of the dust detection device 10 can become the right end 21 of the dust detection device. In this case, the hose connection element 20 is attached to the right end 21. The suction hose 14 can therefore also be attached either to the left end 19 of the dust detection device 10 or to the right end 21 of the dust detection device 10. This has the advantage that a user may be either right-handed or left-handed and can work ergonomically with the portable power tool 18 and the dust detection device 10 fastened thereto.

FIG. 3 shows a dust detection device 10. The dust detection device in the exemplary embodiment in FIG. 3 comprises at least the following components, wherein the list is not complete:

    • a hose connection element 20
    • a valve element 22
    • a dust-collecting device 24
    • a motor 26
    • a turbine 28
    • an electronics unit 30
    • a power supply 32
    • a battery interface 34.

The valve element 22 is located in the hose connection element 20. The valve element 22 opens as soon as a volumetric flow of air that is to be cleaned flows through the dust detection device 10. As soon as the volumetric flow is stopped, the valve element 22 closes. It can therefore be prevented that dust inadvertently flows back. However, the valve element 22 opens only when a suction hose 14 is arranged on the dust detection device 10. During the installation of the suction hose 14, movement of the valve element 22 is enabled via a rotary joint. If the suction hose 14 is not arranged on the dust detection device 10, the valve element 22 does not open.

A dust-collecting device which is configured as a dust bag 24 and which separates the sucked-in dust from the air and retains the dust particles is arranged on the hose connection element 20. The dust-collecting device 24 can be attached to the hose connection element 20 via a tongue and groove guide, clip-type latching, a rotary closure or the like. It is also conceivable for the valve element 22 to be located directly on the dust-collecting device 24. This has the advantage that the dust-collecting device 24 is automatically closed if it is not arranged on the dust detection device 10.

The dust-collecting device 24 together with the hose connection element 20 is separated from the dust detection device 10. The dust-collecting device 24 together with the hose connection element 20 is separated from the dust detection device 10 by actuation of an actuating element. The actuating element can be a latching button or a closure. The actuating element can also be used to lock the dust-collecting device 24 together with the hose connection element 20 to the dust detection device 10 after the installation.

In order to facilitate installation of the dust-collecting device 24, the dust-collecting device 24 can be provided with a structure, for example a supporting structure or reinforcing structure.

A motor 26, a turbine 28, an electronics unit 30 and a power supply 32 are arranged dorsally. The power supply 32 is designed as a rechargeable battery and has an interface 34.

The motor 26 and the turbine 28 are designed in particular as a motor turbine unit or as a module. This has the advantage of permitting particularly simple installation. The electronics unit 30 can likewise be integrated in the motor turbine unit in order to take on either only control of the motor or overall control of the dust detection device 10. In the embodiment illustrated, the electronic unit is arranged between the motor turbine unit and the rechargeable battery 32.

Air is guided within the dust detection device 10 along the arrows shown.

The dust detection device 10 is designed in such a manner that it partially surrounds a space R. The space R is completely filled by a person, a user 12, while wearing the dust detection device 10. A transversal axis 40 and a ventral axis 42 divide the space theoretically into four quadrants, a ventral left quadrant I, a dorsal left quadrant II, a dorsal right quadrant III and a ventral right quadrant IV. In order to achieve ergonomic wearing of the dust detection device 10, a center of gravity S during the wearing of the dust detection device 10 should be located on the transverse axis 40 and extend in each case in equal amounts into the ventral left quadrant I and the ventral right quadrant IV. This is achieved by the arrangement of the components in the dust detection device 10.

FIG. 4 shows a further embodiment of the dust detection device 10. In this embodiment, the rechargeable battery 32 is arranged at the right end 21 of the dust detection device 10 and the hose connection element 20 is arranged at the left end 19 of the dust detection device 10. However, it is also conceivable that the rechargeable battery 32 is arranged at the left end 19 of the dust detection device 10 and the hose connection element 20 is arranged at the right end 21 of the dust detection device 10. This has the advantage that the user 12 of the dust detection device 10 can very simply change the rechargeable battery 32. The weight of a connected suction hose 14 and the weight of the rechargeable battery 32 are introduced at the opposite ends 19, 21 of the dust detection device 10. The weight of the rechargeable battery 32 is therefore very easily compensated for. The motor 26 and the turbine 28 are arranged in the dorsal region, and this, in addition to the already described arrangement of hose connection and rechargeable battery 32, permits a particularly advantageous distribution of weight. Air outlet openings 50 are arranged to the sides of the motor 26 and the turbine 28. An operator interface 52 is arranged on the dust detection device 10 next to the rechargeable battery 32. The dust detection device 10 can be switched on or off via the operator interface 52. The dust detection device 10 can be connected to the portable power tool via the operator interface 52. Information, such as, for example, a filling level of the dust-collecting device 24, a suction capacity, a charging status of the rechargeable battery 32, the portable power tool 18 connected to the dust detection device 10, can be displayed to the user.

It can be of advantage if a further filter 54 is arranged between the dust-collecting device 24 and the motor 26, in order to collect fine dust. The fine dust filter 54 is designed in particular as a permanent filter and can be removed via a flap and cleaned, or exchanged. Such filter systems are already known from the prior art. For this reason, they will not be discussed further here.

In this arrangement, the electronics unit 30 is arranged behind the motor 26. The advantage of this arrangement is particularly advantageous cooling which is higher an air density in the delivery region of the motor fan. The electronics unit 30 can likewise be integrated in the motor turbine unit in order to take on either only control of the motor or the overall control of the dust detection device 10.

The advantage of the embodiment according to FIG. 4 is that the weight of the dust detection device 10 is distributed ventrally and therefore permits better wearing comfort since the weight of the dust detection device 10 does not pull into a user's back.

FIG. 5 shows a further embodiment of the dust detection device 10. In this embodiment, the rechargeable battery 32 is arranged at the right end 21 of the dust detection device 10. However, it is also conceivable for the rechargeable battery 30 to be arranged at the left end 19 of the dust detection device 10. In this embodiment, two turbines 28a and 28b are arranged directly next to the rechargeable battery 32. In this embodiment, the turbines 28a, 28b are arranged one above the other. The arrangement of the turbines 28a, 28b runs here in a radial orientation of the dust detection device 10. A large dust-collecting device 24 is arranged in the dorsal region. The fine filter 54 is arranged between the dust-collecting device 24 and the turbines 28a, 28b. The hose connection element 20 is arranged on the dust detection device 10 in the dorsal right region II.

FIG. 6 schematically shows a dust detection device 10. So that the dust detection device 10 can be placed around the hips of a user and removed again, pivot points 60 are arranged on the dust detection device 10. The sections of the dust detection device 10 between the pivot points can be moved in such a manner that the area of the space R that is at least partially enclosed by the dust detection device 10 becomes larger or smaller.

The dust detection device 10 is composed of a flexibly elastic or partially elastic material, for example of a thermoplastic elastomer, such as silicone. The Shore hardness of the material is between 90 and 35, preferably between 70 and 60, here.

The dust detection device 10 should have at least 4 and at maximum 16 pivoting points 60. However, the dust detection device 10 preferably has 6 pivot points 60. By means of the pivot points, the dust detection device 10 is designed in the manner of a clamp which is placed around the hips of the user and can be opened counter to a restoring force. In the closed state, the restoring force presses the dust detection device 10 against the hips of the user 12. A loss of the position on the body can thus be prevented.

The width KB of the area A that is enclosed by the dust detection device 10 should cover at least a body width of a user of 34 to 46 cm when the user is standing. The height H of the area A which is enclosed by the dust detection device 10 should cover at least a body depth of a user of 24.5 to 38 cm when the user is standing.

The distance a between two pivot points 60 in the dorsal region of the dust detection device 10 should be between 25 cm and 35 cm. The distance a between two pivot points 60 in the dorsal region of the dust detection device 10 should preferably be smaller than 30 cm.

FIG. 7 shows a dust detection device 10 with an operator interface 52. The operator interface 52 comprises a display unit 55 and an operating element 56. The operating element 56 serves for switching the dust detection device 10 on or off, for pairing the dust detection device 10 with the portable power tool 18, for adjusting the suction line and the like.

A communication unit 58 which is preferably designed to be wireless is arranged on the dust detection device 10. The communication unit 58 serves for the dust detection device 10 to communicate with the portable power tool 18, in particular for automatic starting of the dust detection device 10 when the portable power tool 18 is put into operation.

FIG. 8 shows a dust detection device 10 which can be closed via a belt closure 70 or a clip with a strap.

Claims

1. A dust detection device, comprising:

a dust extraction device configured to clean air,
wherein the dust extraction device is configured for placement around the hips of a user of the dust detection device.

2. The dust detection device as claimed in claim 1, further comprising:

at least one hose connection element is arranged at a left end of the dust detection device or at a right end of the dust detection device.

3. The dust detection device as claimed in claim 2, further comprising:

at least one suction hose fastenable to the at least one hose connection element.

4. The dust detection device as claimed in claim 3, wherein the at least one suction hose is couplable to a portable power tool.

5. The dust detection device as claimed in claim 2, further comprising:

at least one dust-collecting device arranged on the at least one hose connection element.

6. The dust detection device as claimed in claim 1, further comprising:

a hose connection element;
a valve element;
a dust-collecting device;
a motor;
a turbine;
an electronics unit;
a power supply; and/or
a battery interface.

7. The dust detection device as claimed in claim 1, wherein:

the dust detection device is configured to at least partially surround a space, and
the space is completely filled by a user while wearing the dust detection device.

8. The dust detection device as claimed in claim 7, wherein a transversal axis and a ventral axis divide the space into a ventral left quadrant, a dorsal left quadrant, a dorsal right quadrant, and a ventral right quadrant.

9. The dust detection device as claimed in claim 8, wherein a center of gravity is located in front of the traversal axis during wearing of the dust detection device.

10. The dust detection device as claimed in claim 1, further comprising:

at least one communication unit configured to communicate with a portable power tool.
Patent History
Publication number: 20220330768
Type: Application
Filed: Aug 18, 2020
Publication Date: Oct 20, 2022
Inventor: Florian Esenwein (Leinfelden-Echterdingen)
Application Number: 17/753,662
Classifications
International Classification: A47L 7/00 (20060101); A47L 5/36 (20060101);