A toothbrush includes a head portion (10) having a bristle tufting surface; a grip portion (30) disposed on a rear end side from the head portion; a neck portion (20) disposed between the bristle tufting surface (11) and the grip portion; and a sensing portion (70) for sensing that an external force in a first direction orthogonal to the bristle tufting surface exceeds a threshold value. A reversal portion (80) connects a first region and a second region, and snaps, buckles, and reverses as the head portion is displaced on a rear surface side due to the external force exceeding the threshold value. An elastic deformation portion (90) connects the first region and the second region, and elastically deforms at least up to the external force at which the reversal portion snaps, buckles, and reverses.

An adjustable cosmetic applicator including a handle unit with a rod unit coupled thereto and defining a rod with a rod central axis. An applying unit includes a brush rod with a brush central axis and a brush extending from the brush rod. A flexible portion interconnects the rod and the brush rod such that the applying unit may be rotated relative to the rod unit with the brush central axis angled relative to the rod central axis.

A toothbrush head comprises a head base and a head frame framing the head base. The head base comprises a substrate with multiple sockets for inserting bristles. The substrate has an outer frame, a central component, and two lateral components. The outer frame comprises a space, a front inner wall, a back inner wall, and two lateral inner walls. The central component is positioned in the space of the outer frame and links to the front inner wall and the back inner wall thereof. Each of the two lateral components is positioned between the central component and each of the two lateral inner walls and links to each of the two lateral inner walls with junctions, respectively, allowing the two lateral components to be rotatable. The toothbrush head helps users to brush the teeth with Bass method without injuring the gingiva, and keeps the toothbrush clean after brushing the teeth.

A handle for a cleaning implement, particularly for a scrub brush includes a resilient handle having a c-shaped bend along its length. The c-shaped bend can be grasped by a user and the handle caused to rotate along an axis defined by the scrubbing end and an upper terminal end.

A hairbrush includes a base including a plurality of rows of bristles; a handle; and a flexible member interconnecting the base and the handle so that the base is configured to flex relative to the handle and the handle is configured to flex relative to the base. The flexible member includes curved parts and straight parts alternated with the curved parts.

The present invention relates to a vehicle engine-washing apparatus and a washing method using the washing apparatus, and more particularly, to a vehicle engine-washing engine for washing the inside of vehicle engine, which apparatus includes a hollow operation tube; a guide part having a body inserted into a tip portion of the operation tube and formed with a through-hole, and a leading-in tube formed on the body in such a manner as to communicate with the through-hole; a holder fitted on and fixed to an outer circumferential surface of the operation tube and having a tapered part and an engagement panel formed at an end of the tapered part; an end cap fitted to a terminal end portion of the operation tube and formed with an operation hole; an operation rod inserted through the operation hole of the end cap and having a coupling protrusion formed at one end of the operation rod and a coupling groove formed at the other end; a hollow connection socket disposed in the operation tube, the other end portion of the socket being fitted on the coupling protrusion introduced into the operation tube; and a washing rod having an inserted protrusion formed at one side thereof which is inserted into one end portion of the connection socket, and a brush part provided at the other side, whereby effects are obtained that washing of the inside of the engine is allowed without having to separate the engine, thereby significantly reducing cost and time for maintenance, and anyone can conveniently perform the washing.

A stress control brush includes a handle, a brush head, and a feedback component. The brush head is pivoted on the handle, and the brush head is pivotable relative to the handle in an angular range. The feedback component is installed between the handle and the brush head. The feedback component is resilient and has a protruding state and a breakdown-sunken state. The feedback component is pressed by the brush head and in the breakdown-sunken state when the brush head is pivoted relative to the handle, and a feedback is provided by the feedback component.

A cleaning device is provided that includes a handle, a cleaning implement, a flexible neck, and a collar. The cleaning implement depends from one end the handle. The flexible neck is positioned to allow flexion of the handle. The collar moves with respect to the flexible neck between a first position where movement of the flexible neck is unrestricted by the collar and a second position where movement of the flexible neck is restricted by the collar.

Ergonomic and flexible brushes for use in conventional processes such as commercial, residential, industrial, and artistic painting processes, as well as for cleaning and cosmetic applications, are disclosed. The functional section of the brush is connected to a flexible structure having a proximal end and a distal end. The distal end of the flexible structure is strongly connected to the functional section of the brush and the proximal section is connected to a handle or, in the alternative, to a second functional section using preferably metal epoxy such as steel epoxy. The functional section of the brush may be positioned and repositioned in predetermined angled and/or twisted positions by simply bending the flexible structure of the brush.

This application discloses a side brush and a smart cleaning device. The side brush includes a side brush base for mounting to a smart cleaning device and a scraper connected to a peripheral side of the side brush base. The scraper is configured to be in contact with the floor, so as to scrape sundries. A structure of the side brush can effectively prevent the side brush from being entangled with sundries during cleaning.