Toothbrush
In order to create a toothbrush having a head part with bristles and having a handle part, such that the head part is movably connected to the handle part by means of a spring-like device and such that the device comprises a web which extends through the device and with which the head part is connected to the handle part in one piece, the head part being connected to the handle part by a spring-like device, such that the head part executes an approximately parallel displacement under load. The proposed device has an elastic supporting element with an opening, and the supporting element comprises a supporting web which borders the opening and together with the web, when a load is applied to the head part, produces an approximately parallel displacement of the head part from an initial position into at least one load position together with the web.
1. A toothbrush, comprising:
a head part with bristles; and
a handle part; and
a spring-like device movably connecting the head part to the handle part, the spring-like device including a web which extends through the spring-like device and with which the head part is connected to the handle part in one piece, and an elastic supporting element having an opening;
wherein the elastic supporting element includes a supporting web bordering a first side of the opening opposite the web such that a thickness of the elastic supporting element opposite the web on the first side of the opening is greater than a thickness of the elastic supporting element on a second side of the opening adjacent to the web; and
wherein the elastic supporting element, together with the web, produces an approximately parallel displacement of the head part from an initial position (A) into at least one load position (B) together with the web under load on the head part.
2. The toothbrush according to claim 1 , characterized in that the supporting web is deformed in the shape of a curve with a load on the head part and/or forms a kink area.
3. The toothbrush according to claim 1 , characterized in that the opening has an elliptical shape comprising in particular a main axis (H) and a secondary axis (N), such that the length ratio between the main axis (H) and the secondary axis (N) changes with a load on the head part.
4. The toothbrush according to claim 3 , characterized in that the elliptical shape of the opening is designed, such that the length ratio of the main axis (H) to the secondary axis (N) becomes smaller with a load on the head part.
5. The toothbrush according to claim 1 , characterized in that the handle part extends in a handle part axis and the head part extends in a head part axis, such that the handle part axis and the head part axis run approximately parallel to one another with an offset (H 1 ), in particular so that the handle part axis extends on the side of the bristles.
6. The toothbrush according to claim 5 , characterized in that the main axis (H) of the elliptical opening extends obliquely between the handle part axis and the head part axis.
7. The toothbrush according to claim 1 , characterized in that the elastic supporting element is integrally moulded on the web in an injection moulding step.
8. The toothbrush according to claim 1 , characterized in that the web is surrounded at least partially by the material of the supporting element.
9. The toothbrush according to claim 1 , characterized in that the opening is completely bordered by the material of the supporting element, in particular such that the material of the supporting element has a lower hardness than the material of the web.
10. The toothbrush according to claim 1 , characterized in that the supporting element extends with a partial section into the area of the head part.