JPH02271806A - Toothbrush - Google Patents

Abstract

PURPOSE: To perform an effective brushing in each surface of teeth on the cheek and tongue sides by structuring a toothbrush with a slender grasp, a bristle support head, a plurality of cleaning bristles, and a means of revolving brush head around the axis. CONSTITUTION: The contours of one-piece handle 2 are formed in such a way especially that a grip by hand is easily done and the handle is not straight. A bristle support head 24 is possible of being connected to the end of the handle at an angle of about 90 deg. to about 145 deg. against the plane of the handle 2. The bristle support head 24 is formed revolvable around it's own axis by means of a pin hole composition 21 or 25. The one-piece handle 2 is rounded at the end 20 and is equipped with a hole 23 being punctured in the parallel direction with the plane surface of the handle. The surface 25 of the rounded circular end 20 is notched and the other plane is even. Preferably, many tufts of straight bristle 3 formed from plastic, may be planted as desired on the head 24.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates generally to toothbrushes, and more particularly to a toothbrush having a novel structure in which the brush head is adjustable and rotatable relative to the handle. Regarding.

[Prior Art] Prior art exists in the form of single-head toothbrushes in which the brush head carries a plurality of flying bundles. The toothbrush is rolled back and forth in a rocking motion along the teeth, and is also used in an up-and-down motion with the teeth clenched. The main limitation is that the single head of the flying carrier is formed on an extension of the handle, usually in the plane of the elongated handle. The hand holding the handle must move the brush head in various directions to effectively brush the buccal and lingual surfaces of the teeth. Furthermore, this term means that for right-handed people, the left half of the teeth can be brushed more effectively than the right half. In order to brush the right half more effectively than before, you can simply switch the toothbrush to your left hand. However, right-handed people cannot use their left hand very well. Therefore, if you hold it in your right hand, your right hand will be tilted slightly.

Other prior art exists for toothbrushes in terms of various handle shapes and brush head fly placements.

[Problems to be Solved by the Invention] A first object of the present invention is to provide a new and improved toothbrush.

A second object of the present invention is to provide a toothbrush that can effectively brush the buccal and lingual surfaces of teeth.

A third object of the present invention is to provide a toothbrush that does not use a plurality of brush carrying heads or a plurality of arrangements of flying bundles.

A fourth object of the present invention is to facilitate brushing by vertical cleaning motions.

A fifth object of the present invention is to provide a toothbrush that is simple and economical to manufacture and is suitable for mass production.

These and other objects are achieved by providing a toothbrush consisting of: l) an elongated handle, preferably made of non-metallic material, in particular of plastic; (can be of single-piece construction or of three-piece construction that is flexible but securely joined).

2) A flying carrying head that is attachable to, but removable from, a distal portion of the handle at an angle of about 90 degrees to about 145 degrees relative to the plane of the handle.

3) A plurality of cleaning jumpers, preferably made of plastic, formed on the head.

4) a pinhole arrangement or a lever arrangement, preferably made of non-metallic material, in particular of plastic, for pivoting the brush head, which is fitted into the end of said head, about its axis; and other appropriate means.

[Preferred embodiment]

The foregoing and other objects and advantages of the invention will become apparent from the description that follows. The description refers to the accompanying drawings which form a part hereof, in which specific embodiments for embodying the invention are shown for purposes of illustration. It is understood that other embodiments are available and structural modifications may be made without departing from the scope of the invention. Accordingly, the following detailed description should not be construed in a limiting sense.

Referring to FIG. 1, the novel structure of the improved toothbrush preferably includes a single-piece elongated handle (2) formed from plastic, a flying carrying head (1), and multiple flying heads (3).
The flying carrier head (1), consisting of a lever (4) and a lever (4) used as a means for rotating the flying carrier head (1) about its own axis, serves as a brushing head.

To obtain this object, a number of bundles (3) of straight leaves, preferably made of plastic, are suitably mounted on the head (1). This head is a flat base (11)
and a rounded attached portion (12). The upper part of the leaf is planted on a flat base (11), and the rounded appendage (12) is inserted into a hole (5) arranged in the distal part of the stalk (2), so that the stalk ( It will be mounted perpendicular to the plane of 2).

A rounded appendage (12) extending through the hole (5) in the distal part of the handle (2) is provided with a small hole (6) near the distal end perpendicular to the plane of the appendage. In this small hole (6) there is a lever arrangement (4) which, once fitted, is used as a means for pivoting the whole of the electric carrying head (1) about its axis. is fitted.

In order to rotate the head (1) (see FIG. 4), the fit (7) of the lever arrangement (4) is rotated about the hole (5) as a pivot axis. The arm (7) of the lever configuration can be pulled down towards the gripping end of the handle (2) from the protruding position to a position parallel to and adjacent to the plane of the handle (2) with the arm (7). The main purpose of this arrangement is to ensure that the arm (7) does not protrude beyond the brush head (1) and interfere with its brushing action.

There are some revisions to this lever configuration.
As shown in the figure, the lever arrangement (4) consists of rounded non-metallic arms (7), especially formed of plastic, the ends of which are bent inward by 90 degrees, and between them They face each other leaving a gap. By applying pressure with one finger, the gap can be widened slightly, so that the short bend (8) fits into the hole (6) on the rounded attachment (12). It is possible to slip the rounded appendage (12) of the electric carrier head (1) into the gap. As shown in Figure 5, the lever has a 0-shaped arm (9) with a slightly flattened end.
), with a hole at each end perpendicular to the plane of the arm (9).

The non-metallic bottle (10) passes through one hole on one flattened end of the arm (9), through the hole (6) on the rounded appendage (12) and through the other hole on the other side of the arm. It will also pass through the other hole on the flat end of. This configuration serves as a means for rotating the head around the axis while preventing the flying electric charge carrying head (1) from coming off the handle.

6a, 6b and 6c, another embodiment of the invention is shown. The contours of the single-piece handle (2) are particularly designed to facilitate hand gripping movements.

The pattern is not straight. The flying carrier/carrying head (24) is the handle (2)
connectable to the distal portion of the handle at an angle of about 90 degrees to about 145 degrees with respect to the plane of the handle.

The flying electric carrying head (24) has a pinhole configuration [21 or 25
(Fig. 7)] so that it can rotate around its own axis. Details of this pinhole configuration are shown in FIG. The distal portion (20) of the single-piece handle (2) is rounded and provided with a hole (23) drilled in a direction parallel to the flat surface of the handle. One surface (25) of the rounded circular end (20) is slotted and the other surface is flat. A number of bundles of straight leaf tops (3), preferably made of plastic, are correspondingly planted on the head (24).

Although the contour of the free end on the leaf can be given various shapes,
Waveforms are particularly preferred. The head is molded with a notch (26) into which the rounded circular end (20) of the handle fits. On the inner surface (28) towards the notch,
Corresponding to the slotted surface of the rounded circular end (20) of the handle, a slot is likewise provided. This head also has a hole (23) with a rounded circular end (20).
A hole (27) is provided which is aligned with. A washer (22) made of a flexible material such as rubber has a cutout (26)
flat inner surface and rounded circular end (20)
placed between the smooth surface of the This washer has
Hole (29) aligned with hole (27) and hole (23)
is drilled. A non-metallic bottle (21) then passes through all the holes to connect the brush head (24) to the handle (2). At this time, it is permitted that the head can rotate around its own axis.

The handle (2) drawn in Figure 6 is not straight, but the head (2)
4) and the longitudinal axis of the handle (A) is fixed. However, this angle may be selected from about 90 degrees to about 145 degrees. This new and improved toothbrush configuration provides one degree of freedom, namely the ability of the brush head to pivot about the mounting axis.

Another preferred embodiment is shown in FIG. 8, which incorporates an additional degree of freedom by providing a three-piece handle. The less straight handle (2) of FIG. 6 is here replaced by two parts: a bifurcated holder element (50) and a flat adjusting arm (40).

The bifurcated tips each have a hole (51) in each tip, and each projection is located at the distal end of the holder element (50). One end of the flat adjustment arm (40) is clamped between the two stages of lights (52) of the holder element (50). This end is also provided with a hole (42) which is aligned with the hole (51) of the holder element (50). Non-metallic bottles (41) are fitted through the holes (51), (42) and (53), respectively, forming a bendable but secure joint.

The other end of the flat adjusting arm (40) is rounded and provided with the hole (23) already described in FIG.

This end also carries a brush head (24) which can be pivoted by means of a pinhole arrangement about its own axis, which in this case corresponds to the hole (23).

It should be noted that the flat adjustment arm (40) does not have to be completely straight. In fact, by curving the flat element, the degree of freedom (of movement) is further increased.

[Brief explanation of drawings]

Types of Drawings Figure 1a shows an assembled view of the embodiment in a particular position, while Figure 1b shows the same embodiment in a different position. FIG. 2 shows the flying carrier head (1) in various positions after being rotated about its axis. FIG. 3 shows the embodiment shown in FIG. 1 in which the elongated handle (2) is of single-piece construction. FIG. 4 shows a proposed lever arrangement (4) used as a means for rotating the brush head about its axis. FIG. 5 is a drawing showing another lever configuration (4) as an alternative to the lever configuration shown in FIG. FIG. 6 shows an assembly diagram of another embodiment of the present invention, compared to the assembly diagram shown in FIG. FIG. 7 shows a pinhole arrangement as a means for rotating the brush head about its axis as shown in FIG. Figure 8 shows the holes (51), (42), (53) and the bottle (4).
1) shows an assembled view of another embodiment incorporating a bendable yet securely joined three-piece handle (5o) formed by 1); FIG. [Main symbols in the diagram] l... Flying carrying head 2... Elongated handle 3... Multiple leaves 4... Lever 5... Hole placed at the end of the handle 6...Small hole provided in the attached part of the flying carrier head 7...Lever-configured arm 8...Short bent part of the arm 9...0-shaped arm lO...bin 11... Flat base of the flying carrying head 12 ・ ・ 20 ・ 2 l ・ 22 ・ 23 ・ 24 ・ 25 ・ 26 ・ 27 ・ 28 ・ 29 ・ 40 ・ 4 l ・ °42 ・ 50 ・ 51 ・52 ・ 53 ・ Rounded attachment part of the flying carrying head End part of the handle Bottle washer Hole drilled in the pinhole configured handle Brush head Separate opening surface of the head of the pinhole configured handle Notch hole One inner surface of the notch Hole in the washer Flat adjustable arm bottle Handle piece of three-piece structure Joint hole in the bottle Holder element Hole in the holder element Both stages of the holder element Hole in the holder element Patent attorney Sekihei Yamashita Thigh drop procedure…Orthographical text 1990

Claims (7)

[Claims] (1) an elongated handle of a single-piece structure or a bendable but securely joined two-piece structure formed of a non-metallic material; a bristle-bearing head forming an angle with respect to a directional axis; a plurality of cleaning bristle formed on said head of plastic, the free ends of which form a specific shape; and a suitable means, such as a pinhole arrangement or a lever arrangement, for rotating the brush head about its own axis, the brush head being formed of A toothbrush with a new structure. (2) The novel structure of claim 1, wherein the angle of attachment of the brush head to the distal end portion of the handle is from 90 degrees to 145 degrees with respect to the longitudinal axis of the handle. toothbrush. (3) A toothbrush having a novel structure according to claim 1, wherein the free ends of the plurality of cleaning bristles have a wavy outline. (4) The rotation angle of the brush head around its own axis is approximately 14
2. The novel toothbrush structure of claim 1, wherein the toothbrush has an angle of 5 degrees to about 250 degrees. (5) A toothbrush having a novel structure according to claim 1, wherein the two pieces forming the elongated handle are bendable but firmly joined, and the rotation angle can be adjusted around that part. (6) The elongated handle is curved and forms a handle2
Claim 1, characterized in that the pieces are bendable yet securely joined, and the rotation angle can be adjusted around that part.
A toothbrush with a novel structure described in . (7) A toothbrush with a novel structure according to claim 1, wherein the handle is made of plastic.