| 摘要 |
The invention relates to a toothbrush, preferably an electric toothbrush, comprising a handle and an attachment that can be mounted on the latter. Th e invention relates in particular to the attachment for an electric toothbru sh of this type, comprising a working head and a tubular connecting piece th at is connected to the latter and can be mounted on the handle. A preferably sleeve-type coupling insert comprising at least one engagement section desi gned to positively and/or frictionally lock with the toothbrush handle is pr ovided in the connecting piece. The invention further relates to said toothb rush handle, which has a connecting piece that can be inserted into the tubu lar connecting piece of the attachment. The attachment can be, in particular , an attachment brush for cleaning teeth, but may also consist of inter-dent al cleaning equipment, gum massage heads or other attachment instruments for carrying out similar tasks in the oral cavity. According to the invention, the coupling insert of the attachment can be axially displaced in relation t o the connecting piece of said attachment and/or to an actuating piece conne cted to said connecting piece in the longitudinal direction of the attachmen t and said coupling insert is connected to the engagement section, which can be positively or frictionally locked with thetoothbrush handle, in such a w ay that an axial displacement of the coupling insert in relation to the conn ecting piece and/or the actuating piece generates an unlocking or locking di splacement of the engagement section transversally to the longitudinal direc tion of the attachment. If the coupling insert or engagement section is lock ed with the toothbrush handle, the attachment or an actuating piece connecte d thereto must be first displaced axially, essentially in the longitudinal d irection of the attachment in relation to the locked coupling insert, the la tter remaining stationary in relation to said attachment or piece as a resul t of being locked with the toothbrush handle. The coupling insert together w ith the attachment can only be removed once the axial relative displacement has released the lock. This two-phase fixing or connecting mechanism permits non self-locking connecting or adapting contours to be provided at the inte rface between the toothbrush handle and the coupling insert, as fixing is gu aranteed by the locking displacement that takes place transversally to the l ongitudinal direction of the attachment.
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