A dental cleaning appliance includes a handle, and a cleaning tool detachably connected to the handle. The cleaning tool includes a nozzle for delivering a burst of working fluid to the teeth of a user, a stem extending between the handle and the nozzle, and a fluid reservoir for storing working fluid. The fluid reservoir is connected to, and extends around, the stem.

A tool for machining surfaces, edge regions, and contours comprising at least one disk-shaped base body rotatable around a tool axis and a plurality of flexible machining means, which are arranged on a circumference of the base body, wherein the machining means are formed rod-shaped and are arranged spaced apart from one another and extend substantially radially outward from the circumference of the base body, wherein at least two disks, between which the machining means are arranged, are arranged in the direction of the tool axis.

A floor cleaner can include a housing adapted for movement over a surface to be cleaned and at least one edge cleaning brush provided on the housing. The edge cleaning brush includes multiple cleaning implements which rotate on different axes. A gear system, such as a planetary gear system, can drive one cleaning implement at a lower speed than another cleaning implement.

A floor cleaner can include a housing adapted for movement over a surface to be cleaned and at least one edge cleaning brush provided on the housing. The edge cleaning brush includes multiple cleaning implements which rotate on different axes. A gear system, such as a planetary gear system, can drive one cleaning implement at a lower speed than another cleaning implement.

A brush for delivering a glutinous substance to a workpiece from an end-effector is disclosed. The brush comprises a body, having a rotational axis and comprising a first channel that comprises an inlet and a first outlet. The inlet is coaxial with the rotational axis and the first outlet is offset from the rotational axis. The brush also comprises tufts, extending from the body and each comprising at least one bristle and a tip. The brush further comprises a first tube, communicatively coupled with the first outlet of the first channel of the body.

A brush for delivering a glutinous substance to a workpiece from an end-effector is disclosed. The brush comprises a body, having a rotational axis and comprising a first channel that comprises an inlet and a first outlet. The inlet is coaxial with the rotational axis and the first outlet is offset from the rotational axis. The brush also comprises tufts, extending from the body and each comprising at least one bristle and a tip. The brush further comprises a first tube, communicatively coupled with the first outlet of the first channel of the body.

A coupling instrument is provided that can easily attach or detach a main body to or from a cleaning part in a cleaning device. The coupling instrument includes a first coupling member including a bulging part having a slant part. A side peripheral part of the slant part is tapered toward a tip thereof. A first protruding part is formed in a protruding manner around the bulging part. The coupling instrument further includes a second coupling member including a fitted part in which the bulging part can be loosely fitted, and a second protruding part formed in a protruding manner around the fitted part. The second protruding part is adjacent to the first protruding part; and the second coupling member has a plurality of engaging parts arranged around the fitted part.

An apparatus for manufacturing an individual brush unit constituting a rotary brush by being stacked in multiple layers, includes an anvil having an insertion hole through which a filament group passes, a filament feeding unit which feeds the filament group from a feeder including a ring cutter on a tip and holds the filament group while a predetermined amount of the filament group protrudes outward from the insertion hole of the anvil, and an ultrasonic welder including a horn having a horn tip portion which pushes and radially expands a protruding tip of the filament group and welds a central part of the expanded filament group, to form the individual brush unit. A core of the welded central part is sandwiched between the ring cutter and the horn tip portion and is cut out, to simultaneously form a shaft hole and separate the individual brush unit from the filament group.

An apparatus for manufacturing an individual brush unit constituting a rotary brush by being stacked in multiple layers, includes an anvil having an insertion hole through which a filament group passes, a filament feeding unit which feeds the filament group from a feeder including a ring cutter on a tip and holds the filament group while a predetermined amount of the filament group protrudes outward from the insertion hole of the anvil, and an ultrasonic welder including a horn having a horn tip portion which pushes and radially expands a protruding tip of the filament group and welds a central part of the expanded filament group, to form the individual brush unit. A core of the welded central part is sandwiched between the ring cutter and the horn tip portion and is cut out, to simultaneously form a shaft hole and separate the individual brush unit from the filament group.

An example adjustable brush may include a handle and a brush head coupled to the handle. The brush head may include a platform, a first arm extending from the platform, and a second arm extending from the platform. A non-rotatable shaft may extend between the first and second arms and a rotatable shaft may be positioned between the non-rotatable shaft and the platform. The rotatable shaft may extend between the first and second arms. A plurality of adjustable teeth may be slideably coupled to the non-rotatable shaft and a plurality of spacers may be positioned on the rotatable shaft. At least a portion of one or more of the plurality of spacers may engage at least a portion of a respective one or more of the adjustable teeth. A rotation of the rotatable shaft rotates the spacers and causes a lateral movement of the adjustable teeth along the non-rotatable shaft.