CN118076319A - Cleaning device for interdental cleaning - Google Patents

Abstract

A cleaning device (1) for interdental cleaning is proposed. The cleaning device (1) comprises a cleaning element (2) which can be a dental floss (30) or an interdental brush (40). The cleaning device (1) further comprises a holding body (3) on which the cleaning element (2) is held. The cleaning device (1) further comprises a main body (4) having a longitudinal extension in the direction of the longitudinal axis (L), wherein the retaining body (3) is arranged in the region of a longitudinal end (4.1) of the main body (4). Furthermore, the cleaning device (1) comprises a drive (5) which is rotatably mounted about a rotation axis (D) and drives the holding body (3). A transmission mechanism (6) is provided in the cleaning device (1), which is arranged between the drive element (5) and the holding body (3) and is designed to put the holding body (3) into a rotary back-and-forth movement about a longitudinal axis (L) or a displacement axis extending parallel thereto and/or into a translational back-and-forth movement transverse to the longitudinal axis (L) or the displacement axis relative to the main body (4) in order to move the cleaning element (2) in a plane formed by the tooth gaps (60). An electric interdental cleaning device (100) having such a cleaning device (1) is also proposed.

Description

Cleaning device for interdental cleaning

The present invention relates to a cleaning device for interdental cleaning and an interdental cleaning instrument having such a cleaning device.

Cleaning devices for interdental cleaning are used for cleaning tartar (plaque) and food debris in the spaces between adjacent teeth. The cleaning device generally has a cleaning member that can be placed into the tooth space and a holder that holds the cleaning member. The holder may be hand-held so that cleaning movements within the tooth space may be performed by hand movements.

The task may be to propose at least one possibility that may simplify the cleaning of the tooth gaps and/or achieve better cleaning results.

This object is achieved by a cleaning device having the features of claim 1. Furthermore, in order to accomplish the task, an electric interdental cleaning apparatus having the features of claim 19 is proposed. Advantageous embodiments and/or designs and/or aspects emerge from the dependent claims, the following description and the figures.

According to one aspect, a cleaning device for interdental cleaning is presented. The cleaning device includes a cleaning member and a holding body, the cleaning member being held and/or fixed on the holding body. The cleaning device comprises in particular a main body. For example, the holding body is associated with the main body, in particular arranged on the main body.

The body preferably has an elongate extension in the direction of the longitudinal axis. Thereby facilitating contact with more posterior tooth spaces in the mouth, such as those between adjacent molars. For example, the body is rotationally symmetrical about its longitudinal axis. For example, the holding body is arranged at or in the region of one longitudinal side end of the main body. The holding body is preferably movable relative to the main body, in particular movably held on the main body.

In one embodiment, the cleaning device comprises a drive for driving the holding body. For example, the drive member is rotatably mounted about an axis of rotation. The drive element has an elongate extension, in particular in the direction of the axis of rotation. For example, the driving member is a driving shaft.

In another embodiment, the cleaning device includes a transmission mechanism. The transmission means is arranged in particular between the drive element and the holding body, in particular in a manner suitable for transmission. The transmission is in particular designed to place the holder relative to the body in a back-and-forth rotational movement about a longitudinal axis or a displacement axis extending parallel thereto and/or in a back-and-forth translational movement transverse to the longitudinal axis or the displacement axis.

Thereby allowing the cleaning member to move in the plane formed by the backlash. The back and forth movement of the holding body also preferably results in a back and forth movement of the cleaning element, in particular a corresponding back and forth movement of the cleaning element. It has been shown that this back and forth movement is advantageous for cleaning the tooth spaces of dental calculus or food residues.

The proposed cleaning device allows to utilize the cleaning movement achieved by the motor drive in the cleaning of the tooth gaps. For example, the drive element can be driven by the output movement of the motor drive. The change is made, for example, by means of a transmission mechanism, in such a way that the drive movement of the drive element is converted, i.e. the desired back and forth movement is obtained. In any case, cleaning of the tooth gaps is simplified or facilitated in this way, for example in comparison with manual cleaning movements.

The term "misalignment axis" in this disclosure especially refers to an axis that exists parallel or substantially parallel to the longitudinal axis of the body. The offset axis is thus arranged, for example, axially offset with respect to the longitudinal axis of the body. For example, the longitudinal axis is the central axis, in particular the geometric central axis, of the body.

In one possible embodiment, the transmission comprises a poking pin and at least one contact part to be subjected or to be subjected to the poking pin. In particular, the catch pin and the at least one contact are arranged relative to one another in such a way that, during a rotational movement of the drive element about the rotational axis, the catch pin acts on the at least one contact in order to move the holder relative to the body. For example, the catch pin and the at least one contact part are arranged relative to one another in such a way that, during a rotational movement of the drive element about the rotational axis, the catch pin contacts the at least one contact part, for example briefly, in order to apply a movement impact to the holding body in particular. This facilitates a technically simple implementation of the transmission.

It is thereby also advantageous to change the drive movement of the drive element to the desired cleaning movement of the cleaning element or to change the cleaning movement in such a way that, for example, the distance of the shifting pin relative to the at least one contact with respect to one of the plurality of rotational positions of the drive element is changed or set accordingly.

For example, the at least one contact is assigned to the holding body, in particular arranged thereon, for example formed thereon. For example, the shifting pin is associated with the drive element, in particular arranged thereon, for example formed thereon or fixedly or rotationally fixedly connected thereto. Such as a toggle pin, integrally formed or formed on the drive member. This facilitates a technically simple realization of the at least one contact and the shifting pin, in particular if the retaining body is configured to be larger in the radial direction than the drive element, so that more structural space is available in the radial direction for forming the at least one contact.

The at least one wall is, for example, located in the movement path of the poking pin such that the poking pin is pressed against the wall in a rotational movement of the drive member about the rotational axis, for example, in order to move the holder relative to the body. This may occur in that the poking pin abuts against at least one contact part upon a rotational movement of the drive member about the rotational axis, for example, in order to apply a movement impact to the holding body.

In another embodiment two such contact portions are provided. The contact is located in particular in or on the movement track of the shifting pin. In particular, the contact portions are arranged at a distance from one another, as seen transversely to the axis of rotation of the drive element, in particular in such a way that the shifting pin acts alternately on one of the contact portions in the event of a rotational movement of the drive element about the axis of rotation. Whereby a back and forth movement of the holder relative to the body is achieved.

The drive may be set up for rotation about the axis of rotation. In this case, the transmission is designed, for example, to convert the rotary motion of the drive element into the desired back-and-forth motion of the holding body.

Alternatively or additionally, the drive element can be designed for back and forth rotation about the rotational axis between two rotational positions, i.e. a pendulum rotation. In this case, for example, it is provided that the two contact parts lie on the movement path of the setting pin, which results from the rotary movement between the two rotary positions.

For example, the transmission has the following functions: the rocking rotation of the drive member is converted into a desired back and forth motion of the holder to achieve a desired cleaning motion of the cleaning member. The setting of the frequency and/or the rotation angle or the oscillation amplitude of the back and forth movement or the setting thereof to a desired value is facilitated by the setting of the distance of the two contact parts from each other, viewed transversely to the axis of rotation of the drive element, and/or by the setting or selection of the distance of the setting pin from the two contact parts, respectively, with respect to at least one rotational position or the respective rotational position of the drive element.

A possible embodiment consists in that the cleaning element is arranged in the region of the half-line of the holder body, seen transversely to the axis of rotation of the drive element. In particular, the two contact portions are present in the region of the holding body which is opposite one another and separated from one another by a bisector, seen transversely to the axis of rotation of the drive element. This facilitates the use of gravity, in particular when the cleaning elements are assigned to the top side or the bottom side of the cleaning device, respectively, when viewed transversely to the axis of rotation of the driving element. For example, the two contact parts are arranged mirror-symmetrically to each other about the bisector. This facilitates a technically simple implementation.

In a further embodiment at least one further contact is provided. The other contact portion is preferably located on or in the movement path of the setting pin. In particular, the further contact part is preferably arranged opposite the cleaning element in the bisecting region and in the path of the shifting pin movement, seen transversely to the axis of rotation of the drive element.

By means of the further contact, it is possible that the back and forth movement of the holding body, seen transversely to the axis of rotation of the drive element, is superimposed with a movement component in the transverse direction thereof. Thereby facilitating cleaning of the gap between two adjacent teeth in the tooth height direction, for example, when moving back and forth in the tooth width direction.

For example, the further contact portion is designed to bulge relative to the rotational axis of the drive element, in particular to bulge radially inwards. It has been shown that this design of the further contact part facilitates the contact process of the poking pin with respect to the further contact part when the drive member performs a rotational driving movement together with the poking pin. The transmission function exerted by the further contact and the shifting pin may thereby be counteracted by adverse effects.

One possible embodiment consists in that the at least one contact is formed on the peripheral wall, in particular on the surrounding peripheral wall. In particular, two contact portions and/or at least one further contact portion are formed on the peripheral wall. For example, the peripheral wall is a recess, such as a peripheral wall of a material hollowed-out portion. For example, the recess is arranged on the holding body, in particular formed, for example integrally formed thereon. By adapting to the circumferential wall of the recess, for example, it is advantageous to achieve at least one contact in a technically simple manner.

The same target direction is achieved by the fact that, according to one embodiment, the setting pin is inserted into the recess. By insertion, the pin moves in the recess during the rotational movement of the drive element until one of the contact parts is contacted, so that the pin moves the holding body, in particular the holding body and/or a moving impact is applied to the holding body.

The transmission function of the transmission mechanism can be changed by the recess dimensions in the radial direction with respect to the axis of rotation of the drive member and/or the contour of the recess peripheral wall. For example, the desired transmission function may be obtained by selecting a certain size of the recess and/or a certain contour of the peripheral wall. In this way, the frequency and/or the angle of rotation of the back and forth movement of the holding body can be varied, in particular adjusted to a desired value.

For example, the recess is dimensioned such that there is a certain play for the poking pin inserted therein. The play can be perceived in that, in the case of a rotational movement by the setting pin, for example, about the drive element axis of rotation or an axis of rotation arranged parallel to the drive element axis, it only briefly contacts at least one contact, by means of which the movement or movement change of the holding body relative to the main body is triggered.

The pin can be arranged as an extension, in particular a cylindrical extension, in particular formed or connected, for example, to the drive element. In one possible embodiment, the extension is arranged eccentrically with respect to the drive element axis of rotation, in particular its central axis is arranged eccentrically with respect to the drive element axis of rotation. In this case, for example, the central axis of the extension extends in a parallel manner with respect to the axis of rotation of the drive element.

The extension is designed, for example, as a cam. Or the extension may be designed as a pin. For example, the central axis of the pin extends eccentrically with respect to the axis of rotation of the drive member. For example, the extension has a circular cross-section, in particular a circular or oval cross-section. In principle any circular cross-sectional profile for the extension cross-section is conceivable.

The associated recess may be formed as a slot, a heart or an apple. In particular, the recess is dimensioned such that in the event of a circumferential or rocking rotational movement of the drive element about the axis of rotation, the extension acts on at least one contact on the peripheral wall of the bore to obtain the intended movement of the holder relative to the body. For example the transverse axis of the slot or the symmetry axis of the heart-shaped or apple-shaped hole, is located on the bisecting line of the holding body, in particular on the bisecting line mentioned above.

Or the extension can be present with its central axis coaxial with the axis of rotation of the drive member, i.e. the central axis of the extension is located on the axis of rotation of the drive member. In this case, the extension may have a diamond-shaped cross section. In principle all cross sections for the extension which are allowed to contact the peripheral wall are conceivable.

In the case of an extension with a diamond-shaped cross section, it is proposed that the recess has mutually parallel walls extending along the longitudinal diagonals of the diamond-shaped cross section of the extension. For example, the distance between the walls is set such that the extension acts on at least one contact on the peripheral wall of the recess during a rocking rotational movement of the drive element about the rotational axis, in order to obtain the desired movement of the holder relative to the body.

For example, the recess is formed as a slot or in the form of a slot, the longitudinal extension of which extends in the direction of the half-line of the holding body, in particular in the direction of the half-line. For example, the parallel walls are part of the longitudinal side walls of the slot. For example, the walls extend parallel in the direction of the bisecting line.

The above embodiments give examples of eccentric and/or centered variants of the transmission. By means of the embodiment described, a technically simple realization of the transmission is facilitated. Depending on the recess dimensions, seen transversely to the axis of rotation of the drive member, with respect to the extension dimensions, a cleaning movement of the cleaning member can be obtained, which results from a rotational back-and-forth movement about the longitudinal axis and/or a translational back-and-forth movement transversely to the longitudinal axis of the main body.

In a further possible embodiment, for example, a connection which can be elastically deformed is provided between the holding body and the main body. The holding body is movably held on the main body, in particular, by an elastically deformable connecting portion. Thereby allowing the back and forth movement of the holder to be performed with the connection portion elastically deformed. In this way, a restoring force from elastic deformation can be used, which supports the back and forth movement of the holding body.

The connection allows for a loss-proof connection between the holder body and the main body. For example, the connecting part is fastened on the one hand to the holding body and on the other hand to the main body, for example in a form-fitting and/or force-fitting and/or material-fitting manner.

For elastic deformation, the connecting part is, for example, a soft plastic part. The joint may comprise or consist of a thermoplastic elastomer (abbreviated TPE), a thermoplastic olefin (abbreviated TPO) and/or a conventional elastomer. For example, the connection is injected onto the holding body and/or the main body.

In particular, the connection is designed as a sleeve. Thereby facilitating a fluid-tight connection between the body and the holding body which is movable relative to the body. Provision is thus also made for the connecting part to be able to be used as a housing, for example for a transmission. The term "sleeve-shaped" encompasses any type of hollow body.

For example, the connecting portion overlaps the holding body on the one hand and/or the main body on the other hand on the end side. Thereby facilitating a fluid-tight connection between the retaining body and the main body.

In another embodiment, the cleaning member is an interdental brush. The interdental brush is, for example, a brush in the form of a bottle brush or a paint brush. The interdental brush is dimensioned so thin that it can protrude into the tooth space and be used to clean the tooth space. For example, the interdental brush extends with its longitudinal extension in a radial direction to the longitudinal axis of the main body.

According to another embodiment, the cleaning element is a dental floss, which is fixed to the holder body, for example by means of a socket. For example, the floss extends with its longitudinal extension transversely to the longitudinal axis of the body. The floss is preferably the floss portion of the floss.

One possible embodiment consists in that the cleaning device is designed as an accessory for a handset. For example, the body is designed as a kit housing or cartridge for this purpose. The hand-held instrument may be a hand-held instrument comprising a motor drive, in particular an electric motor drive, for driving the cleaning device drive. For example, the handset has a grip and/or gripping surface to enable it to be gripped.

For example, the body has an adapter or other receptacle for engagement with the housing of the hand-held machine. For example, the drive element has an engagement point, in particular an insertion point, for engagement with the output shaft of the hand-held device in a manner suitable for transmission.

According to another aspect, an electric interdental cleaner is provided. Interdental cleaners comprise the above cleaning device and a handpiece or the above handpiece. The handpiece or handset has, for example, a gripping surface so as to be able to be held, for example, in the hand, thereby allowing manual feeding into the mouth and/or throat. The handpiece or the handpiece preferably has a drive mechanism which has a current-driven motor and is used to drive the cleaning device, in particular the drive member.

Further details and features come from the following description of various embodiments with reference to the drawings, in which:

figure 1 shows in perspective view one possible embodiment of a cleaning device for interdental cleaning,

Figure 2 shows the cleaning device of figure 1 in a front view,

Figure 3 shows the cleaning device of figure 1 in a longitudinal section,

Figure 4 shows in a partial cross-sectional view a part of an electric interdental cleaner having the cleaning apparatus of figure 1,

Figure 5 shows the cleaning device of figure 1 in a view of the various components arranged in the drive train,

Figure 6 shows in perspective view the drive member of the cleaning device of figure 1,

Figure 7 shows the drive of figure 6 in a front view,

Figure 8 shows a possible embodiment of a transmission mechanism for the cleaning device of figure 1 with a recess and a poking pin inserted therein,

Figure 9 shows a recess formed in a holder body holding a cleaning member of the transmission mechanism of figure 8,

Figure 10 shows in perspective view a holder body with a recess and an inserted shifting pin,

Figure 11 shows in perspective view a further embodiment of a transmission mechanism for the cleaning device of figure 1 with a recess and a poking pin inserted therein,

Figure 12 shows in perspective view another embodiment of a cleaning device for interdental cleaning,

Fig. 13 shows the cleaning device of fig. 12 in a longitudinal section.

Fig. 1 shows in schematic view one possible embodiment of a cleaning device 1 which is suitable for cleaning a tooth gap, i.e. for interdental cleaning. Fig. 1 shows the cleaning device 1 in an operative position with respect to a tooth gap 60 between two teeth 50, 50'. Fig. 2 and 3 also show a front view (fig. 2) and a longitudinal section view (fig. 3) of the cleaning device 1.

The cleaning device 1 preferably comprises a cleaning element 2 and a holder 3, on which the cleaning element 2 is held. For example, in the cleaning device 1 of fig. 1-3, the cleaning elements 2 are dental floss 30. The dental floss 30 is preferably accommodated as a wire part on a receptacle 13, which is for example fork-shaped. The floss 30 is preferably fixed to the holding body 3 by means of the receptacle 13.

The holding body 3 is preferably spherical in design. Thereby facilitating the use of the cleaning device 1 in loving mouth and/or throat, as any sharp edges that may be present are eliminated. Furthermore, the retaining body 3 can be formed from a soft plastic or can have such a material in the region of the circumferential portion. Thereby taking further measures to care for the mouth and/or throat and/or to counteract possible injuries caused by movements made by the holder 3 when the cleaning device 1 is in use. For example, a cap 16 formed from or having a soft plastic is provided on the holding body 3, which forms, for example, a circumferential portion of the holding body 3.

The cleaning device 1 preferably comprises a main body 4. Preferably, the body 4 has an elongated extension in the direction of the longitudinal axis L. The holding body 3 is preferably arranged in the region of a longitudinal side end 4.1 of the main body 4. For example, the wire portion of the floss 30 extends with its longitudinal extension transversely to the longitudinal axis L. Preferably, the receptacle 13 is arranged on the holding body 3 at an angle to the longitudinal axis L. The wire portion of the floss 30 preferably extends at a distance from the longitudinal axis L.

The holding body 3 is preferably movably held on the main body 4 by a connecting portion 7. For example, the connecting portion 7 is fixed to the holding body 3 on the one hand and to the main body 4 on the other hand. The connection 7 is preferably designed as a sleeve or tube or similar hollow body. The connecting portion 7 preferably overlaps the holding body 3 on the one hand and the main body 4 on the other hand on the end side. For example, the connection 7 is fitted on the end face over an axial projection 14, 15, such as a shoulder, of the holding body 3 and/or of the main body 4, or is supported thereon.

The connection portion 7 is preferably elastically deformable. The connection 7 is preferably connected to the holding body 3 and the main body 4, in particular rotationally fixed at the end side, so that a movement of the holding body 3 relative to the main body 4 is performed under elastic deformation of the connection 7. The connection 7 is preferably a soft plastic part, in particular an injection-molded part. For example, the connection 7 is injected onto the holding body 3 and/or the main body 4.

The cleaning device 1 preferably has a drive 5 (fig. 3) for driving the holder 3. Preferably, the drive 5 is designed as a drive shaft. The drive 5 is preferably mounted rotatably about the rotation axis D. Preferably, the rotation axis D is located on the longitudinal axis L of the body 4, or the rotation axis D and the longitudinal axis L are arranged coaxially with each other. In principle, the rotation axis D can also be arranged axially offset with respect to the longitudinal axis L.

The body 4 is designed, for example, as an elongated hollow body, in particular as a hollow shaft. For example, the driving member 5 is accommodated in the main body 4. For example, the driving member 5 is mounted on the inner peripheral surface of the main body 4, in particular, slidably supported thereon. For this purpose, for example, a sliding bearing 17 is provided, which comprises a bearing surface 17.1 on the drive element 5 and a counter surface 17.2 on the inner circumferential surface 4.3 of the main body 4. For example, the bearing surface 17.1 is formed on the outer circumferential surface of the radial shaft projection or shaft shoulder or collar 5.2. The drive element 5 preferably has a stop surface 21 transverse to the axis of rotation D in order to lock the drive element 5 in a displacement-proof manner relative to the body 4, for example at least in the axial direction relative to the longitudinal axis L.

The cleaning device 1 preferably comprises a transmission mechanism 6, which is arranged, for example, in a suitable driving manner between the drive element 5 and the holder body 3. The transmission 6 is preferably designed to move the holding body 3 relative to the main body 4 in a rotationally back-and-forth movement about the longitudinal axis L and/or in a translatory back-and-forth movement transversely to the longitudinal axis L, for example, in order to move the cleaning element 2 in the plane formed by the tooth gaps 60.

In the embodiment according to fig. 1-3, the cleaning device 1 is designed as an accessory for a handset. Fig. 4 shows by way of example an electric interdental cleaner 100 comprising a cleaning device 1 and such a handset or handpiece 80, wherein the handpiece 80 is only partially shown.

For use as an accessory, the cleaning device 1 preferably has two joints 18, 19. The joining points 18, 19 are preferably arranged in the region of one end 4.2 opposite to the longitudinal side end 4.1. The joints 18, 19 are preferably designed so that the cleaning device 1 can be used as an accessory for a commercially available handset, for example as a handset in an electric toothbrush.

One of the engagement points 18, 19, in particular the engagement point 18, is used for engaging the drive member 5 of the cleaning device 1 to the output shaft 81 of the handpiece 80. For example, the driver 5 has a socket 5.3 to receive the output shaft 81 of the handpiece 80 therein and/or to achieve an anti-rotation connection between the driver 5 and the output shaft 81. A locking member 5.4, for example in the form of a locking member, may be provided to effect locking against axial disengagement of the output shaft 81 from the drive member 5. For example, a corresponding counterpart 81.1 is provided at the output shaft 81.

The other joint 19 is preferably provided for connecting the body 4 to the housing 82 of the handpiece 80, preferably in a rotationally fixed manner, in a form-fitting and/or force-transmitting manner. For example, the cleaning device 1 has a socket-like plug-in connection 20 or other adapter, into which a part of the housing 82 of the hand-piece 80 can be inserted in a form-fitting and/or force-fitting manner. The socket 20 is preferably connected to the body 4 in a rotationally fixed manner. The plug-in connection 20 is preferably enclosed by the body 4 and/or integrated into the body 4. The plug opening 20 is preferably arranged in front of the socket 5.3 of the drive element 5, seen in the direction of force transmission from the drive element 5 to the holding body 3.

As can be seen in particular from fig. 3 and 4, the transmission 6 preferably comprises a shifting pin 5.1. The setting pin 5.1 is preferably assigned to the drive element 5, in particular arranged on the drive element. The setting pin 5.1 is preferably arranged eccentrically with respect to the drive element 5, so that the central axis M of the setting pin 5.1 is arranged eccentrically with respect to the axis of rotation D of the drive element 5.

For example, the pin 5.1 is formed as an extension 11 of the drive element 5 and has, for example, a circular, in particular circular cross section. For example, the extension 11 is connected to the drive element 5 in a rotationally fixed and in particular displacement-proof manner. For example, the extension 11 is a pin, which is inserted into an opening at the end face of the drive element 5 and is held there in a rotationally fixed and in particular displaceably fixed manner relative to the drive element 5.

Fig. 5, for example, shows the cleaning device 1 without the main body 4 and shows a drive train of the cleaning device 1, which comprises, for example, the holder 3, the transmission 6 and the drive 5. Fig. 6 shows the drive train without the holder 3. Fig. 7 shows the driver 5 in a front view looking at the setting pin 5.1. For a better understanding of the manner in which the transmission 6 operates, fig. 8,9 and 10 show the cleaning device 1 in a cross-sectional view and a view looking at the holder 3.

As can be seen in particular from fig. 8, 9 and 10, the transmission 6 comprises, for example, at least one, preferably two contact portions 3.1, 3.2, which can be subjected to the action of the setting pin 5.1. The contact portions 3.1, 3.2 are preferably assigned to the holding body 3, in particular arranged on the holding body 3 or integrally formed or formed on the holding body.

The contact portions 3.1, 3.2 are preferably located in the path of movement of the setting pin 5.1. The contact portions 3.1, 3.2 are preferably arranged at a distance from one another, seen transversely to the longitudinal axis L, in such a way that, in the case of a rotational movement of the drive element 5 about the rotational axis D, the setting pin 5.1 acts alternately on one of the contact portions 3.1, 3.2, in order to cause a back-and-forth movement of the holding body 3 relative to the main body 4. The rotational movement of the driver 5 may be a circular rotational movement or a rocking rotational movement.

For example, the cleaning elements 2 are arranged in the region of the half line H of the holder body 3, viewed transversely to the axis of rotation D. The two contact portions 3.1, 3.2 are preferably located opposite one another and in the regions 8, 9 of the holding body 3 which are separated from one another by the bisecting line H. For example, the contacts 3.1, 3.2 are arranged mirror-symmetrically to one another about the bisector H.

A further contact 3.3 is preferably provided, seen transversely to the axis of rotation D. The other contact 3.3 is preferably also assigned to the holding body 3, in particular arranged on the holding body 3 or integrally formed or formed on the holding body. The other contact 3.3 is preferably arranged opposite the cleaning element 2 in the region of the bisecting line H and is located in the path of movement of the setting pin 5.1.

For example, the contact portions 3.1, 3.2 and 3.3 are formed on the peripheral wall 10.1 of the recess 10 and the setting pin 5.1 is inserted into the recess 10. For example, the recess 10 is formed in the form of a slot or a heart-shaped or apple-shaped hole and is dimensioned such that, when the drive element 5 rotates about the axis of rotation D or oscillates, the pin 5.1 acts on at least one contact 3.1, 3.2, 3.3 on the peripheral wall of the recess 10 in order to obtain the desired movement of the holding body 3 relative to the main body 4.

Fig. 11 shows a further embodiment of a transmission 6' for a cleaning device 1, with a recess 10' and a shifting pin 5.1' inserted therein. There, the contact portions 3.1, 3.2 are formed on the peripheral wall 10.1 'of the recess 10' having walls 10.2, 10.3 extending parallel to one another at a distance from one another. The walls 10.2, 10.3 preferably each extend straight. The recess 10' is preferably formed as a slot and the walls 10.2, 10.3 form the longitudinal sides of the slot. Preferably, the walls 10.2, 10.3 extend in the direction of the bisecting line H of the holding body 3. The recess 10' is preferably arranged in the central region of the holding body 3.

In the case of the transmission 6', the setting pin 5.1' is formed, for example, by an extension 12 having a diamond-shaped cross section. For example, the central axis M' of the extension 12 extends coaxially with the rotation axis D of the driver 5. The setting pin 5.1 'is inserted into the recess 10' in such a way that the longitudinal diagonal 12.1 of the diamond-shaped cross section extends along the walls 10.2, 10.3. In order to obtain the desired movement of the holding body 3 relative to the main body 4, the walls 10.2, 10.3 are dimensioned at a distance from one another in such a way that, in the case of a rocking rotational movement of the drive element 5 about the rotational axis D, the setting pin 5.1 is alternately pressed or pressed with one side 22 or 23 against one of the walls 10.2, 10.3, so that, for example, a movement impact is imparted to the holding body 3.

Fig. 12 and 13 show a further embodiment of a cleaning device 1' in a side view (fig. 12) and in a longitudinal section (fig. 13). The components or functional parts of the cleaning device 1' which are structurally identical or functionally identical to the components or functional parts of the cleaning device 1 of fig. 1-10 should bear the same reference numerals. Reference is made in this respect to the description of the cleaning device 1.

In the cleaning device 1', the cleaning member 2 is designed as an interdental brush 40. The interdental brush 40 is, for example, a brush in the form of a bottle cleaning brush or a paint brush. The interdental brush 40 preferably has a longitudinal extension in the direction of the longitudinal axis L'. The interdental brush 40 preferably extends with its longitudinal extension in a radial direction to the longitudinal axis L of the main body 4. In particular, the longitudinal axis L' of the interdental brush 40 is disposed at an angle relative to the longitudinal axis L of the main body 4.

In the cleaning device 1', the main body 4 and/or the drive 5 and/or the transmission mechanism 6 and/or the elastically deformable connection 7 can be constructed in the same way as the cleaning device 1. Reference is made to the description of the cleaning device 1.

The cleaning device 1 'has an elongate holder body 3' which can be joined at one longitudinal side end to the main body 4 and the transmission mechanism 6 in the manner described above. The holding body 3' has a junction point for the interdental brush 40 in the region of its other longitudinal side end. For example, the joint has a component for connection with the interdental brush 40, in particular in a detachable or inseparable manner. For example, the engagement point is established for forming a ball joint 41 with the interdental brush 40. Such as the ball 42, is formed on the interdental brush 40. For example, a ball 43 is formed on the holder 3'.

List of reference numerals

1. Cleaning device

1' Cleaning device

2. Cleaning member

3. Holder body

3' Holder

3.1 Contact portion

3.2 Contact portion

3.3 Contact portion

4. Main body

4.1 End of the device

4.2 End of the device

4.3 An inner peripheral surface

5. Driving piece

5.1 Poking pin

5.1' Poking Pin

5.2 Collar ring

5.3 Socket

5.4 Locking piece

6. Transmission mechanism

6' Transmission mechanism

7. Connecting part

8. Region(s)

9. Region(s)

10. Concave part

10' Recess

10.1 Peripheral wall

10.1' Peripheral wall

10.2 Wall with a wall body

10.3 Wall with a wall body

11. Extension part

12. Extension part

12.1 Longitudinal diagonal line

13. Receptacle base

14. Protruding part

15. Protruding part

16. Cap with cap

17. Sliding bearing

17.1 Bearing surface

17.2 Mating face

18. Junction point

19. Junction point

20. Plug-in connector

21. Stop surface

22. Side of the vehicle

23. Side of the vehicle

30. Dental floss

40. Interdental brush

41. Ball joint

42. Ball with ball body

43. Ball socket

50. Teeth

50' Teeth

60. Tooth gap

80. Hand-held machine and hand-held part

81. Output shaft

81.1 Pairing piece

82. Shell body

100. Interdental cleaning instrument

L longitudinal axis

L' longitudinal axis

D axis of rotation

H bisecting line

M central axis

M' central axis

Claims (19)

1. A cleaning device (1) for interdental cleaning, comprising:

a cleaning member (2) and a holding body (3) on which the cleaning member (2) is held,

A main body (4) having a longitudinal extension in the direction of the longitudinal axis (L), wherein the holding body (3) is arranged in the region of one longitudinal side end (4.1) of the main body (4),

A drive (5) rotatably mounted about a rotation axis (D) for driving the holding body (3), and

-A transmission mechanism (6) arranged between the drive element (5) and the holding body (3) and designed to put the holding body (3) in a rotary back-and-forth movement about the longitudinal axis (L) or a displacement axis extending parallel thereto and/or in a translational back-and-forth movement transverse to the longitudinal axis (L) or displacement axis relative to the main body (4) in order to move the cleaning element (2) in a plane formed by tooth gaps (60).

2. Cleaning device according to claim 1, wherein the transmission mechanism (6) comprises a poking pin (5.1) and at least one contact part (3.1) to be subjected to the poking pin (5.1), which are arranged opposite each other in such a way that the poking pin (5.1) acts on the contact part (3.1) to move the holding body (3) relative to the main body (4) upon a rotational movement of the driving member (5) about the rotational axis (D).

3. Cleaning device according to claim 2, wherein the at least one contact (3.1) is assigned to the holder body (3) and the poking pin (5.1) is assigned to the driver (5).

4. A cleaning device according to claim 2 or 3, wherein two contact portions (3.1; 3.2) are provided, which lie on the path of movement of the poking pin (5.1) and are arranged at a distance from one another as seen transversely to the axis of rotation (D) in such a way that, on a rotational movement of the drive member (5) about the axis of rotation (D), the poking pin (5.1) acts alternately on one of the contact portions (3.1; 3.2) to cause the holding body (3) to move back and forth relative to the main body (4).

5. Cleaning device according to claim 4, wherein the drive (5) is designed to rotate back and forth about the rotational axis (D) between two rotational positions, and the two contact points (3.1; 3.2) lie on the resulting movement path of the setting pin (5.1).

6. Cleaning device according to claim 4 or 5, wherein the cleaning element (2) is arranged in the region of a bisecting line (H) of the holder body (3), seen transversely to the axis of rotation (D), the two contact portions (3.1; 3.2) being located in regions (8; 9) of the holder body (3) which lie opposite one another and are separated from one another by the bisecting line (H).

7. Cleaning device according to claim 6, wherein the two contact portions (3.1; 3.2) are arranged mirror-symmetrically to each other with respect to the bisecting line (H).

8. Cleaning device according to claim 6 or 7, wherein a further contact (3.3) is provided, which is arranged opposite the cleaning element (2) as seen transversely to the axis of rotation (D) in the region of the bisecting line (H) and is located on the path of movement of the shifting pin (5.1).

9. Cleaning device according to one of claims 2 to 8, wherein the at least one contact portion (3.1) is formed on a peripheral wall (10.1; 10.1 ') of a recess (10; 10 ') and the poking pin (5.1) is inserted into the recess (10; 10 ').

10. Cleaning device according to claim 9, wherein the poking pin (5.1) is designed as an extension (11) with a circular cross section, the central axis (M) of which is arranged eccentrically with respect to the rotational axis (D) of the drive member (5), and wherein the recess (10) is designed as a long hole, a heart-shaped hole or an apple-shaped hole and is dimensioned such that, upon a encircling or rocking rotational movement of the drive member (5) about the rotational axis (D), the extension (11) acts on at least one contact (3.1) on the peripheral wall (10.1) of the recess (10) to obtain the sought-after movement of the holding body (3) with respect to the main body (4).

11. Cleaning device according to claim 9, wherein the poking pin (5.1 ') is formed as an extension (12) with a diamond-shaped cross section, the central axis (M ') of which is coaxial to the rotation axis (D) of the drive member (5), and wherein the recess (10 ') has walls (10.2; 10.3) extending parallel to each other, which extend along the longitudinal diagonal (12.1) of the diamond-shaped cross section of the extension (12) and are dimensioned at a distance from each other such that, upon a rocking rotational movement of the drive member (5) about the rotation axis (D), the extension (12) acts on the at least one contact portion (3.1) on the peripheral wall (10.1 ') of the recess (10 ') to obtain the desired movement of the retaining body (3) relative to the main body (4).

12. Cleaning device according to one of the preceding claims, wherein the holding body (3) is movably held on the main body (4) by means of an elastically deformable connection (7) in order to perform a back and forth movement of the holding body (3) with elastic deformation of the connection (7).

13. Cleaning device according to claim 12, wherein the connection (7) is fixed on one side to the holding body (3) and on the other side to the main body (4).

14. Cleaning device according to claim 12 or 13, wherein the connection portion (7) is a soft plastic portion and in particular comprises or consists of a thermoplastic elastomer TPE, a thermoplastic olefin TPO and/or a conventional elastomer.

15. Cleaning device according to one of claims 12 to 14, wherein the connection (7) is designed as a sleeve and overlaps the holding body (3) and the main body (4) on the end side.

16. The cleaning device according to one of claims 1 to 15, wherein the cleaning element (2) is a dental floss (30) which is fixed to the holding body (3) by means of a receptacle (13) and extends with its longitudinal extension transversely to the longitudinal axis (L) of the main body (4).

17. The cleaning device according to one of claims 1 to 15, wherein the cleaning element (2) is an interdental brush (40) with a longitudinal extension extending in a radial direction of the longitudinal axis (L) of the main body (4).

18. Cleaning device according to one of the preceding claims, wherein the cleaning device (1) is designed as an accessory for a handset (80).

19. An electric interdental cleaning instrument (100) comprising a cleaning device (1) according to one of the preceding claims and a handpiece (80) which electrically drives the cleaning device (1).