Oral hygiene brush, with a bristle head replacement system

Abstract

A toothbrush with a system to replace the bristle head. The present invention patent application follows, for a toothbrush, aimed at oral hygiene, which through a male coupling formed by a tongue with claw, both incorporated in the bristle head, which will couple in the female cavity of the handle, so that with the bristle lifetime end due to its wear, the head can be removed and replaced, providing economy, as well as less environmental impact.

Claims

1. A toothbrush comprising: a head (2) with bristles (3), said head includes a pair of ears projected from a rear edge of said head, and a male terminal protruding between said ears, said male terminal includes a tongue (6) reinforced by a structural rib (7); an indentation (8) extending from said tongue and including a claw; a handle including female terminal (11), defined on a front edge, said female terminal (11) includes a through channel (13) defined by by side walls (12) and an upper wall including a chamfered cutout (14), said channel (13) defines a lower stop (10); wherein said male terminal is configured to be inserted inside said female terminal (11), such that structural rib engages said chamfered cutout and said claw (9) engages said lower stop (10).

2. The toothbrush according to claim 1, wherein the indentation (8) is configured to pressed upwardly such that said claw (9) is accommodated inside said channel (13) until reaching the lower stop (10); and wherein edges of the side walls (12) of said female terminal (11) are wedged by the ears (5), locking thereby the head (2) to the handle (16).

3. The toothbrush according to claim 1, wherein the claw (9) is configured to be pressed upwardly such that when the claw (9) is locked by said lower stop (10), pressing the claw upwardly causes the disengagement from the lower stop (10) allowing thereby the head (2) to be removed from said handle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention patent application follows, to be better explained according to the attached drawings, in which can be seen:

(2) FIG. 1Lower perspective view, showing the brush bristle head detached from the handle, where its male terminal formed by a tongue with claw, aligns with the female terminal of the handle, formed by a through hole delimited by the lower edge wall and side edges.

(3) FIG. 2Upper perspective view according to the previous figure, demonstrating its means of fitting, both represented in an enlarged way by details A and B.

(4) FIGS. 3, 4 and 5Sequential view showing the coupling of the head to the handle female terminal.

(5) FIG. 6View of the brush properly assembled for use.

(6) FIGS. 7, 8 and 9Schematic view showing the user pressing the claw, which is forced to move, thus providing its disengagement from the lower stop, allowing the bristle head to be fully removed and discarded.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(7) In compliance with the attached drawings, the present invention patent application follows, for an ORAL HYGIENE BRUSH, WITH A BRISTLE HEAD REPLACEMENT SYSTEM, formed from a toothbrush (1) equipped with a head (2) with bristles (3), and from its rear edge (4) project a pair of ears (5) that intermediate a male terminal formed by a tongue (6) reinforced by a structural rib (7), while step, which at its end, an indentation (8) is intended for a claw (9). This, in turn, coincides with the lower stop (10) of a female terminal (11), formed by side walls (12), which make up a through channel (13) as well as a chamfered cutout (14), arranged on the upper wall (15) of said female terminal (11), so that a handle (16) projects from the said upper wall (15).

(8) Thus constituted, for the assembly, the user introduces the tongue (6) of the head (2) in the through channel (13), which under slight deformation in the setback (8), makes the tongue (6) have its jaw (9) placed at the end of the course in the lower stop (10) of the female terminal (11). Simultaneously, the structural rib (7) is housed inside the chamfered cutout (14), as well as the ears (5) start to wedge the edges of the side walls (12) of said female terminal (11), causing in this condition, the perfect locking of the head (2) on the handle (16), enabling its use.

(9) As the bristles (3) wear out, the user presses the claw (9), which moves in a forced way, in the direction of disengaging from the lower stop (10), allowing the head (2) to be removed and discarded.

(10) According to the scope of the present application, with the wear of the bristles (3) on the head (2), both are removed and discarded, while the original handle (16) is maintained, and therefore, the plastic material discard rate in nature becomes considerably smaller, in addition to promoting low cost for the final consumer.