Manual guide device and tool connectable thereto
The invention relates to a manual guiding device comprising a housing and a drive member with a drive means which is movable relative to the housing by means of a motor, and a tool releasably connected to the drive means.
The invention furthermore relates to tools for the above-described manual guiding device, each tool comprising a handling part and a guide part, wherein on the guide part an element for establishing a releasable connection with a drive of the manual guiding device is provided.
The manual guiding device may, for example, be a device for cleaning and/or processing and/or treating the surface of an object, such as a shoe, a car part or the like, or may be a massaging device for application outside a living body. Suitably configured treatment components of the respective tools may be employed to clean, machine or otherwise treat the surfaces of the respective objects.
To facilitate and/or improve operation and action, manual guiding devices with, in particular, electrically driven tools are known in many embodiments. There, the tool performs a rotary or rotary-oscillating movement about an axis. Devices are also known in which the tool is moved to oscillate back and forth or to rotate eccentrically. In most cases, these manual guidance devices are single-purpose devices or devices that are set for a particular requirement or action.
The device manufactured for one process step has the following advantages: tool motion and tool can be optimized to perform the process steps, thus, providing the best performance. However, if different operations are to be carried out later on with the same manual device, it is clear that in most cases these operations can only be carried out generally with a tool movement adapted to the respective requirements.
WO 02/17767a1 discloses a hand-held shoe-cleaning device with a housing designed as a handle, in which an electric motor with a drive shaft for non-positive coupling with a brush is provided. In order to avoid a rigid coupling between the electric motor and the brush, for example, a flexible shaft is provided as the drive shaft. If the intermediate shaft of the brush is arranged laterally offset with respect to the axis of rotation of the drive shaft, the brush executes a rotational movement or an eccentric oscillating movement, respectively. For certain actions, such as applying shoe polish to a shoe, such a rotational movement is not suitable, as the shoe polish may be thrown off the brush during the rotational movement and thus cause soiling.
DE 3615918 a1 discloses a manually operable cleaning device, by means of which a tool, for example a brush, can be set to a full rotary motion or to an oscillating short stroke rotary motion. As already mentioned above, for some applications a full rotational movement of the tool is not suitable. Due to the mass inertia of the tool, a pendulum short stroke-rotary motion is also unsuitable.
The object of the present invention is therefore to overcome the drawbacks of the prior art and to provide a manual guide device of the initially mentioned type, on which various tools can be easily fitted and for which a desired, suitable movement pattern can be ensured.
Another object of the invention is to provide a suitable tool for manually guiding a device, which tool can be releasably connected to a drive member in a simple manner and with which a movement pattern suitable for various machining can be performed.
According to the invention the first object is achieved by a manual guiding device as described above, wherein the drive means is eccentrically mounted in the drive member with an eccentricity, and wherein the fixed bearing is arranged on the housing and away from the drive means for cooperation with the tool as far as possible. The advantage that can be achieved with this tool is that, in principle, different types of tools can be connected to the working part and can be released therefrom again without having to reach the selected tool, wherein the optimum type of movement of the respective tool is adjusted while the operative connection is established.
In order to be able to process or treat, respectively, a large area in a short period of time with a manual guiding device, according to the invention the working member comprises at least two rail-movable driving means spaced apart, which are connected to the tool in a releasable operative connection.
According to one feature of the invention, the drive means comprise means for effecting a positive locking connection with the tool.
In order to achieve other movement patterns by means of a suitably designed tool, at least one undercut or the like may be provided on the housing of the manual guiding device for anchoring an engagement nose of the tool or the like. Thus, for example, in a tool designed as a so-called dirt milling cutter, which is described further below, for example, a faster rotating tool can be connected more reliably to the manual guiding device, which will be described below.
If, according to one embodiment of the invention, the drive means comprise a drive device to which a tool is connected in releasable operative connection, the tool comprising the processing means and the guide means, wherein on the guide means a bearing for the drive device and a clearance for receiving the fixed bearing are centrally arranged, the tool usually generates an oscillating movement. Thus, in operation, the tool will perform an eccentric rotational or orbital motion, respectively, in the region of the drive, wherein the spaced, non-movable fixed bearings prevent circular motion of the tool and allow the tool to move in one direction only.
The recess for receiving the fixed bearing on the guide part of the tool is preferably arranged in a star shape. In this way, several possibilities are provided for accommodating the fixed bearing, thereby facilitating the sliding of the tool onto the manual guiding device.
In another embodiment of the invention, the drive means may comprise at least one drive device to which the tool is connected in a releasable operative connection, the tool being designed axially symmetrically, the tool comprising the handling means and the guide means, wherein a bearing for the drive means is provided at the centre of the guide means, thereby causing the tool to circulate along the track. Here, the tool is rotatably mounted in a drive device, and when there is no load, the tool can perform a circulating movement and a rotating movement along the rail. However, if the tool is placed on a workpiece, the friction generated therewith will resist rotation, so that during use an orbital motion is mainly performed.
According to a further embodiment of the invention, the drive member comprises at least one eccentrically movable drive means to which a tool is connected in a releasable operative connection, the tool comprising a treatment member and a guide member, wherein a bearing for the drive means is arranged eccentrically on the guide member.
If the eccentricity of the bearing corresponds substantially to the eccentricity of the drive means, the tool will produce a rotational movement.
Whether an eccentrically moving drive or an orbital drive, circular movement of the tool about the axis can be achieved by virtue of the eccentricity of the coupling means on the tool, wherein releasable positive locking will ensure axial rotation. The positive locking means can be designed in various ways. For example, a recess may be provided on the drive means, or a crown collar may be connected to the drive means, which crown collar functions like a claw coupling.
According to a further embodiment of the invention, the drive member comprises a drive device to which the tool is connected in releasable operative connection, the tool comprising a processing member with at least one rotatably mounted brush and a housing, the tool-housing having a recess for accommodating the stationary bearing, furthermore a coupling element operatively connected to the at least one brush is provided for establishing a connection with the drive device for causing a rotational movement of the at least one brush of the tool. Thanks to these features, the tool can be connected to a manual guiding device having a housing from which at least one rotatably mounted brush protrudes. Preferably, several brushes are arranged to rotate in different directions, whereby, for example, a particularly high cleaning effect can be achieved with such a tool.
In order to obtain a reliable connection between the manual guide and the tool housing, at least one snap-in nose or the like can be provided on the tool housing for establishing a connection with at least one undercut portion on the manual guide housing. Such a reliable connection is advantageous or even required if high centrifugal forces occur during use of the tool.
In order to adapt the rpm of the at least one brush and also to allow several brushes to be driven by one drive element, the coupling element is preferably connected to the at least one brush via a gear mechanism.
When several brushes are used, the gear mechanism is preferably formed by a planetary gear mechanism, wherein a central wheel of the planetary gear mechanism is operatively connected to the coupling element and each planetary wheel is operatively connected to a brush. For example, a tool with three brushes, each of which is non-rotatably connected to the toothed wheel, may be manufactured. These toothed wheels constitute planet wheels arranged around the central wheel. Thereby, the three brushes each move in rotationally opposite directions. In this way, a so-called dirt milling cutter will be constructed which is particularly suitable for removing dirt from the surface of an object, for example a shoe.
Advantageously, the tool is fixed to and removed from the drive means by: the operative connection of the tool in the axial direction of the drive device is provided by an elastic member on the catch, which operative connection can be released by means of a pressure force of the ejector pin acting on the tool and overcoming a resilient force on the catch. Thus, simply pressing the button, without touching the tool with the hand, the tool can be removed from the device and moved into the receptacle provided for it.
Preferably, the motor is formed by an electric motor.
Another object of the invention is achieved by means of the tool described above, wherein the connecting element is formed by a bearing arranged at the centre of the guide part, wherein furthermore a clearance is provided on the guide part for accommodating a fixed bearing of the manual guide device, thereby causing a rocking (swinging) movement of the tool. Such a tool is particularly suitable for applying pasty substances to surfaces, for example shoes, since the pasty substances cannot be thrown out as a result of the oscillating movement of the tool. In rotary tools, especially when using more liquid substances, the liquid substances are thrown out and thus cause undesirable soiling of the environment or the user of the device.
Advantageously, the space required for the oscillating movement of the tool on the guide part for receiving the fixed bearing of the manual guide device is arranged in a star shape on the guide part. Thereby, the fixed bearing of the manual guide device may be accommodated at different positions of the guide member, without having to pay attention to the exact orientation of the manual guide device relative to the fixed bearing when attaching the tool to the manual guide device. This facilitates handling of the device and thus increases the acceptability of the device.
The treatment member of the tool is preferably made of sponge. Depending on the nature of the sponge material, the sponge may be used in different applications. For example, a relatively stiff sponge material with large pores is suitable for brushing suede.
Advantageously, a pasty substance, such as grease or the like, is arranged in the sponge. In this way, the paste-like substance can be applied to the surface of the object by means of the finished tool. For example, the implement may be a device for applying leather care grease to the surface of leather shoes. The sponge can be saturated with a paste-like substance or a suitable liquid, or the paste-like substance or the suitable liquid can be arranged in a hollow body provided for it.
The sponge body may be formed by a sponge ring, inside which the pasty mass is arranged, and an applicator connected thereto, which is made of a material permeable to the pasty mass. With this structure, the manufacture of such a tool becomes more convenient, while the tool has good performance. The sponge ring, applicator and guide member of the tool are preferably adhered to one another. By means of the two-part design of the sponge ring and the applicator of the sponge body, the pasty material present inside the sponge ring can be selectively transported through the applicator to the outside by manufacturing the sponge ring from a material that is impermeable to the pasty material or hardly permeable to the pasty material. Of course, it is also possible to manufacture the sponge ring in one piece with the applicator.
Advantageously, the cover is arranged on a processing part of the tool. Thus, dirtying by the pasty substance can be prevented, and the pasty substance can be prevented from drying out.
Preferably, the cover is releasably connected to the guide member, for example by a bayonet connection.
The object of the invention is also achieved by a tool in which the connecting element is formed by a bearing arranged at the centre of the guide part, thereby causing the tool to move cyclically along the rail. In this way, for example, a tool can be manufactured which is particularly suitable for polishing surfaces.
In this case, the treating element is preferably made of synthetic fur or textile material. Of course, other materials, such as non-woven fabrics or natural fur, may also be used as the treatment member.
The object of the invention is also achieved by a tool in which the connecting element is formed by a bearing arranged eccentrically on the guide part. With such an embodiment, other movement patterns may be achieved that are advantageous for a particular application.
In particular, a rotary movement of the tool can be achieved if the eccentricity of the bearing corresponds substantially to the eccentricity of the drive. Such a tool may be preferred, in particular, for cleaning the surface of various objects.
In this case, the treatment member is preferably made of bristles.
Finally, the invention is also achieved by a tool as described above, wherein the handling member comprises at least one rotatably mounted brush, and furthermore a housing is provided with a recess for accommodating a stationary bearing of the manual guiding device, wherein the connecting element is formed by a coupling element operatively connected to the at least one brush, thereby causing a rotational movement of the at least one brush of the tool. By means of these features, a tool, preferably with several rotationally arranged brushes, can be produced, with which a particularly high cleaning effect can be achieved.
In order to obtain a reliable connection between the manual guide device and the tool housing, at least one snap-in nose or the like can be provided on the tool housing for establishing a connection with the at least one undercut portion on the housing of the manual guide device. Such a reliable connection is advantageous or even necessary if high centrifugal forces occur during use of the tool.
In order to be able to adapt the rpm of the at least one brush and also to drive several brushes with one drive element, the coupling element is connected to the at least one brush via a gear mechanism.
When several brushes are used, the gear mechanism is preferably formed by a planetary gear mechanism, wherein a central wheel of the planetary gear mechanism is operatively connected to the coupling element and each planetary wheel is operatively connected to a brush. For example, there may be tools made with three brushes, each of which is non-rotatably connected to one of the toothed wheels. These rim wheels form planet wheels arranged around the central wheel of the planetary gear mechanism. Thereby, the three brushes each move in rotationally opposite directions. In this way, a so-called dirt milling cutter will be formed which is particularly suitable for removing dirt from the surface of an object, for example a shoe.
Hereinafter, the present invention will be explained in more detail through the drawings showing various exemplary embodiments. Wherein,
FIG. 1 shows a partially cut-away perspective view of an embodiment of a manual guide apparatus;
fig. 1A shows a further partially cut-away perspective view of the manual guiding apparatus according to fig. 1;
figure 2 shows a partial cross-sectional view of a cut-out part of the manual guide device in the region of the drive member;
fig. 3 shows a cut-away part of the manual guiding device in the area of the drive member, wherein the tool is formed by a grease sponge;
fig. 3A shows a perspective view of the tool according to fig. 3;
FIG. 4 shows an exploded view of another embodiment of a tool formed from a grease sponge;
FIG. 5 shows a unit consisting of three tools formed of grease sponges as shown in FIG. 4;
FIG. 6 shows a partial cross-sectional view of a cut-away portion of the manual guide apparatus in the region of the drive component, wherein the tool is formed by a polishing disc;
fig. 6A shows a perspective view of the tool according to fig. 6;
fig. 7 shows a cut-away part of the manual guiding device in the area of the drive member, wherein the tool is formed by a brush;
FIG. 7A shows a perspective view of the tool according to FIG. 7;
FIG. 7B shows a top view of the tool according to FIG. 7;
fig. 8 shows a partly sectioned cut-away part of the manual guide device in the region of the drive part, wherein the tool is formed by a dirt milling cutter;
fig. 8A shows a perspective view of the tool according to fig. 8 from above; and
fig. 8B shows a perspective view of the tool according to fig. 8 from below.
Fig. 1 shows a perspective view of an embodiment of a manual guiding apparatus 1 according to the invention in a partial cross-sectional view. The manual guiding device 1 comprises a housing 2 and a drive member 3 with a drive 5, the drive 5 being movable relative to the housing 2 by means of a motor 7. The tool 4 is releasably connected to the drive means 5. The motor 7 is supplied with electrical energy, in particular by an accumulator 8 or a rechargeable battery. The recharging of the rechargeable battery can be carried out in a suitable manner via a docking cradle in which the device 1 is arranged. The electrical energy is transmitted via a plug, suitable contacts on the device 1 or by means of an inductance (not shown). The operating element 6 allows setting the device 1 into operation. By means of the ejector 9, the tool 4 can be removed from the drive 5, preferably without touching the tool 4 and thus without the risk of getting dirty. According to the invention, the manual guiding device 1 is constructed such that it can be fitted with a wide variety of tools 4, 4 ', 4 ", 4'" as described below with reference to fig. 2 to 8. The tools 4, 4 ', 4 ", 4'" are designed to allow different types of movements, so that for a specific action, each suitable tool 4, 4 ', 4 ", 4'" can be used.
Fig. 1A shows a further perspective view of the manual guide device 1, which shows a section in the region of the drive part 3. Inside the housing 2 of the device 1, two undercut portions 13 'are provided, which undercut portions 13' can be used for anchoring snap noses 37 or the like of the tool 4 '"(see fig. 8, 8A and 8B), whereby the tool 4'" can be held well on the device 1. Of course, it is also possible to provide several undercut portions 13' in various configurations on the housing 2 of the device 1.
Fig. 2 shows a partial section through a cut-out of the manual guide device 1 in the region of the drive part 3. A downwardly projecting drive means 5 is mounted eccentrically movably with an eccentricity e in the drive member 3, the drive means 5 comprising a catch 12 for blocking the movement of the tool 4, 4 ', 4 ", 4'" (not shown) in the axial direction. Furthermore, the drive means 5 have positive locking means, which may be formed, for example, by a notch 11 on the drive means 5 or a crown collar 11' connected to the drive means 5. By pressing the ejector 9 (see fig. 1), the ejector pin 10 can be moved in the direction of arrow D towards the tool 4, 4 ', 4 ", 4'" (not shown), whereby the tool 4, 4 ', 4 ", 4'" can be separated from the drive 5.
A stationary fixed bearing 13 is arranged on the housing 2 of the device 1 and the fixed bearing 13 is moved away from the drive 5. By means of the eccentric mounting of the drive means 5 on the one hand and the fixed bearing 13 on the other hand, differently designed tools 4, 4 ', 4 ", 4'" can be realized with different types of movement. Several exemplary embodiments of the tools 4, 4 ', 4 ", 4'" will be described hereinafter.
For example, when applying a pasty substance, such as grease (or shoe polish) or the like, to the surface of an object, the device 1 may be used with a tool 4 according to the invention in the form of a grease sponge as shown in figures 3, 3A, 4 and 5, in order to prevent the pasty substance from being thrown outwards or away from the tool 4.
Fig. 3 shows a drive member 3 with a movable drive 5 rotatably connected to a tool 4. In this case, the tool 4 has a guide member 15 and a treatment member 14, for example a sponge impregnated with a pasty substance. The guide part 15 of the tool 4 has in the center a rotatable bearing 16 for the drive 5 and a recess 17 with a star-shaped configuration for accommodating the fixed bearing 13 of the device 1.
When inserting the tool 4 into the drive 5, a reliable rotatable guidance of the tool 4 can be achieved simultaneously in the peripheral region via the recess 17 in the guide part 15 and the fixed bearing 13. The orbital movement of the drive means 5 in cooperation with the remote stationary bearing 13 causes a substantially oscillatory movement of the tool 4, thereby preventing the pasty mass from being thrown or thrown away.
Fig. 4 shows a further embodiment of the tool 4 designed as a grease sponge in an exploded view. The tool 4 is composed of a processing part 14 and a guide part 15 (refer to fig. 3). The treatment member 14 comprises a sponge ring 18, inside which sponge ring 18 a paste-like substance 19 is arranged. The sponge ring 18 is provided on each side with an adhesive layer 21, the sponge ring 18 adhering on the one hand to the guide member 15 and on the other hand to the disc applicator 20. The applicator 20 is made of a suitable material, in particular a perforated foam material permeable to the pasty mass 19. Thereby ensuring that the pasty mass 19 can be delivered in a dosed manner via the applicator 20 to the outside in order to apply it to a surface of, for example, a shoe. Advantageously, the projections 22 are arranged on the outer circumference of the guide part 15, which projections engage in corresponding recesses 13 on the cover 24, so that the handling part 14 of the tool 4 can be completely surrounded by the cover 24. In this way, the tool 4 designed as a grease sponge can be transported and stored without the risk of soiling. Furthermore, the cover 24 prevents the pasty substance 19 from drying out. The sponge ring 18 has a certain elasticity so that the paste-like substance 19 contained in the sponge ring 18 can be pressed to the outside via the applicator 20 by pressing the sponge ring 18 against an object to be cleaned, such as a shoe. The porosity of the applicator 20 must be adapted to the consistency of the pasty mass 19. Embodiments are also conceivable according to which a compressible bellows made of synthetic material is provided instead of the sponge ring 18.
Fig. 5 shows an assembly unit consisting of three tools 4 designed as grease sponges, each with a cover 24 applied on it. The whole unit is surrounded by an assembly device 25, which assembly device 25 may have suitable Euro holes 26. For a grease sponge for applying shoe polish to, for example, a shoe surface, for example, black, brown and colorless grease sponges should be arranged in the assembly device 25. Since refilling is complicated and involves a risk of soiling the user, these tools 4, which are designed as grease sponges, are basically designed as disposable products.
Fig. 6 and 6A show a tool 4' rotatably connected to a drive 5, which tool can be used, for example, as a polishing tool. The symmetrical tool 4 'with the handling part 27 and the guide part 28 is connected to the crown collar 11' of the drive part 3 via a bearing 29. Thereby causing a rotational movement of the tool 4'. The treating element 27 may be made of, for example, synthetic fur or textile material. As an alternative, the tool 4' can also be rotatably mounted via an eccentrically mounted drive 5 (not shown). In this case, when the processing member 27 is applied to the workpiece, the tool 4' will be appropriately orbited in a circle while avoiding rotation, whereby, for example, a polishing operation can be performed on the surface of the object.
For cleaning by means of grinding and removal of particles from the active area of the tool, in order to avoid damage and scratching of the surface, the device 1 may according to the invention be operatively connected to a tool 4 ", as shown in fig. 7, 7A and 7B, the tool 4" being movable in an axial rotating manner. The tool 4 ″ designed as a brush is formed by a guide part 31 with a bearing 32 on the drive 5 and the treatment part 3, wherein the bearing 32 is arranged eccentrically on the guide part 31 and preferably exhibits the same eccentricity e as the drive 5 in the drive part 3. In order to obtain a substantially axial rotational movement of the tool 4 ", the eccentricities e of the drive 5 and the bearing 32 in the guide part 31 of the tool 4" may be arranged to be equally oriented. This can be achieved by means of a positive locking element 33, which positive locking element 33 cooperates with a positive locking means formed as a notch 11 on the drive means 5.
Finally, fig. 8, 8A and 8B show a tool 4 "'designed as a so-called dirt milling cutter, the tool 4"' being primarily intended for removing dirt from an object surface, such as a shoe surface. In the embodiment shown, the treatment member 34 of the tool 4' ″ comprises three rotatably mounted brushes 35. Fewer or more brushes 35 may be arranged separately. Furthermore, the tool 4' ″ comprises a housing 36, on which housing 36 an engagement nose 37 is provided. The snap noses 37 can be produced in one piece with the tool housing 36, as can be seen from the sectional view shown in fig. 8. The snap-in nose 37 snaps into an undercut portion 13 'provided on the housing 2 of the manual guiding device (see fig. 1A) to provide the required retention force for the tool 4' ″ on the device 1. Via the claw coupling 38, a non-rotational connection with the drive means 5 and with the crown collar 11' of the device 1 connected thereto can be established. A recess 40 is provided in the tool-housing 36, wherein a fixed bearing 13 on the housing 2 of the device 1 engages the tool 4 '″, which in addition prevents the tool 4' ″ from rotating relative to the device 1. A claw coupling 38 connected to the drive means 5 is operatively connected to the brush 35 via a gear mechanism 39. In the embodiment shown, the gear mechanism 39 is formed by a planetary gear mechanism, wherein the sun gear of the planetary gear mechanism is non-rotatably connected to the claw coupling 38. The brushes 35 are non-rotatably connected to a toothed wheel, which brushes, like the planet wheels, rotate around a central gear. In this way, a diametrically opposite rotational movement of the individual brushes 35 is obtained, whereby a particularly good cleaning effect can be achieved by means of the tool 4' ″.
Within the scope of the invention, the manual guiding device 1 and the tools 4, 4 ', 4 ", 4'" that can be connected thereto can be designed in various ways, which can be optimally adapted to their respective fields of use.