A manual oral care implement comprises a handle, a connector and a head, the head being repeatedly attachable to and detachable from the handle via the connector. The handle has a distal end and a proximal end opposite to the distal end and adjacent to the head when the head is attached to the handle. The proximal end has an upper surface that is at least partially chamfered. The handle has a longitudinal axis and a cross-sectional area extending substantially perpendicular to the longitudinal axis. The chamfered surface and the cross-sectional area define therebetween an angle α from about 15° to about 30°.

Systems and methods for changing an end effector are provided. A robot flange may have a first receiver and a first electrical connection. An end effector may have a second receiver, a second electrical connection, and a locking assembly. The locking assembly may be configured to releasably secure the end effector to the robot flange. A connector may have an interface and an electrical connector for transferring at least one of power and data from the first electrical connection to the second electrical connection. The interface may be received by the first receiver and the second receiver when the connector is positioned between the robot flange and the end effector and the locking assembly secures the end effector to the robot flange.

Systems and methods for changing an end effector are provided. A connecting plate may have a first side, a second side opposite the first side, and a kinematic interface. The kinematic interface may include at least one projection extending from both the first side and the second side. A robot flange may have a first kinematic receiver including at least one recess for receiving a corresponding projection of the at least one projection of the first side. An end effector may have a second kinematic receiver and a locking assembly. The second kinematic receiver may include at least one recess for receiving a corresponding projection of the at least one projection of the second side. The locking assembly may be configured to releasably secure the end effector to the robot flange.

A connector comprising a cylindrically shaped socket and a plug that may be connected to the socket in a removable manner, in which a plurality of contacts are disposed being mounted in a contact block. It comprises a ring with ogive shaped parts (21) assembled in a membrane (22), the ogive shaped parts and the membrane being covered by a locking spring (25).

A connecting plug includes a locking pin arranged at a connector face. The locking pin has at least one latching element and a counter-piece. The latching element is configured for engaging with at least one counter-latching element of a second connector part. The locking pin includes a spring element configured for resiliently pressing the at least one latching element and the counter-piece against each other. The counter-piece is shaped and configured for pressing the at least one latching element in a radially outward direction and for positively locking the at least one latching element in an engaged position as soon as the at least one latching element is engaged with the at least one counter-latching element.

A connector includes a connector terminal having a flat connection surface that faces a counter connector terminal, at least one spherical ball disposed on the connection surface, at least a surface of the ball having electrical conductivity, a ball retaining portion retaining the ball such that the ball is rotatable, a ball guiding portion fixed to the connector terminal and holding the ball retaining portion such that the ball retaining portion is movable in a two-dimensional manner along the connection surface, and a terminal spring pressing the counter connector terminal or the connection surface of the connector terminal in such a direction that the counter connector terminal and the connection surface approach each other.

A connector includes a connector housing (10) with a cavity (15B), into which a terminal fitting (40) is to be inserted. The connector housing (10) is connectable to a mating connector. A retainer insertion opening (30) opens in a side surface of the connector housing (10) and in a direction intersecting an inserting direction of the terminal fitting (40). A retainer (50) can be inserted into the retainer insertion opening to lock the terminal fitting (40). The retainer (50) includes a thin plate (61) extending in an inserting direction of the retainer (50), a convex portion (70) on a lower surface of the thin plate (61) and a groove (71) in the convex portion (70). A projection (25) is provided on a rear part of a locking lance (20) in the cavity (15B) of the connector housing (10) and fits to the groove (71).

An electrical connector socket is provided, which has a locking device with which an electrical connector can be locked to the electrical connector socket when plugged in, wherein the locking device is arranged at least partly inside the electrical connector socket and protrudes at least partly from the electrical connector socket on the plug-in side. The electrical connector is provided for transmitting high currents and signals, wherein the electrical connector as a locking contour, into which a locking device of an electrical connector socket can engage, wherein the locking contour is arranged on the electrical connector on the plug-in side.

A system for providing mains power to a cordless appliance, the system comprising a coupler and a complementary coupler on the appliance. The coupler has symmetrically configured concentric power terminals, which are connected to a mains power source in use, and a magnetic coupling region disposed concentrically around an outer periphery of the power terminals. The complementary coupler has complementary power terminals configured to engage with the symmetrically configured concentric power terminals of the coupler, and an engaging region disposed concentrically around an outer periphery of the complementary terminals. A magnetic force provides a mutual attraction between the magnetic coupling region and the engaging region, thereby engaging the power terminals and complementary power terminals and establishing an electrical connection between the coupler and the appliance.

A connector has at least one engagement ball that is movable between an engagement position and a disengagement position. A movement of an engagement ball operating part of the connector relative to an inner housing of the connector can force the at least one engagement ball from the engagement position into the disengagement position. The at least one engagement ball is biased in the engagement position by an elastic element via the engagement ball operating part. The connector further comprises an outer housing of the connector with a catch that when the outer housing is operated engages with a counter catch of the engagement ball operating part to move the engagement ball operating part, so that the engagement ball operating part forces the at least one engagement ball from the engagement position into the disengagement position.