JPH0130904Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a toothbrush.The purpose of this invention is to make it easier to brush by providing a handle on the brush side that can freely tilt in any direction around the handle on the grip side.
The objective is to provide a toothbrush with enhanced tooth brushing functions.

According to this invention, the entire length of the handle of the toothbrush is divided into the brush side and the grip side, and an elastic body is provided between the opposing surfaces of the divided parts to connect them. If you brush your teeth with
The handle on the brush side moves up and down from the rod-shaped elastic body part.
The brush can be tilted slightly bent in any direction such as left/right, front/rear, diagonally, or in the rolling direction of the brush, allowing the brush to tilt in any direction in the mouth to properly brush teeth along the tooth surface. can be done. Therefore, even if the biasing force is biased in one direction or an excessive biasing force is applied to the brush, the biasing force is absorbed by the tilting absorption action of the elastic body, so the brush is usually not suitable for the tooth surface. It exhibits constant pressure contact action and is suitable for protecting teeth and extending the life of brushes.

When the brush part tilts to one side, the rod-shaped elastic body stretches to a certain extent, and the peripheries of the handle-facing surfaces of both adjacent connecting parts come into contact with each other, which acts as a fulcrum during tilting and is biased in the biasing direction. It serves as a stable tilting control function.

Further, if necessary, the area to be thoroughly polished can be polished by biasing and tilting the handle of the brush in an arbitrary direction with the thumb or forefinger.

This is especially effective for areas that are difficult to brush, such as the back teeth, and it does not continue to put undue stress on the hands and arms as it currently does, even after brushing for a relatively long time.
You can polish without getting tired.

In this state, the side and inner surface of your index finger will be guided by the downward protrusion of the brush handle and the bottom of the handle, so you can grip the toothbrush in a stable state and freely move it toward the brush part. You can change the tilt angle with your finger and maintain that state.

An embodiment of this invention having such characteristics will be described in detail below based on the drawings.

The drawing shows a brush 1, and in FIG.
It is composed of a grip handle 4 to be connected to this, a rod-shaped elastic body 5 made of soft synthetic resin or rubber, interposed between these connecting parts, and a locking pin 6 for connection.

The connecting lower surfaces of the above-mentioned handles 3 and 4 both form finger hook protrusions 3a and 4a that project slightly downward, and as shown in FIG. It has a pair of fitting holes 7, 7 for fitting two rod-shaped elastic bodies 5, 5, respectively, and both ends of the elastic bodies 5, 5 are fitted into these fitting holes 7, 7, respectively, and then these Locking pins 6, 6 are inserted into pin holes 9, 9 drilled in the vertical and horizontal surfaces of each handle 3, 4 near the connecting portion with a slight gap 8 between the opposing surfaces.
The elastic bodies 5, 5 are fixed and regulated inside, and these elastic bodies 5, 5 are integrally connected between both handles 3, 4.

In addition, this connection position is suitable for the brush handle 3 when brushing teeth.
Determine the length and position of the brush 2 so that when it is placed in the mouth, the back teeth can be brushed. Gap 8 mentioned above
has the role of regulating the permissible tilting amount of both handles 3 and 4, and the smaller the gap, the stronger the repulsion resistance by the elastic body when tilting, so it is difficult to tilt and the amount of tilting is small. On the other hand, as the gap becomes larger, the repulsive force exerted by the elastic body at the time of tilting becomes weaker, and the tilting becomes easier and exhibits a large amount of tilting. Further, the above-mentioned elastic body 5 may be one piece, and since the amount of tilting varies depending on the degree of elasticity, depending on the elasticity, the connecting parts of the handle may be provided closely together without providing a gap. good.

When brushing your teeth using a toothbrush constructed in this way, as shown in FIG. By rolling the side or tilting the side in the desired direction as shown in FIGS. 3 and 4, brushing can be performed with elasticity that can apply an appropriate biasing force to the teeth and gums.

And when you want to tilt the brush 3 downward,
All you have to do is put pressure on your thumb and press downward, and at this time, the side of your index finger will touch the protrusion 4a of the grip handle 4.
In addition, in the usage state shown in FIG. 1, the index finger always comes into contact with the protrusion 4a and can be held in a stable state.

Also, if you want to tilt the brush handle 3 upwards,
As shown in FIG. 5, it is sufficient to place the thumb on the upper surface of the grip handle 4 and use the index finger to pull upward from the lower surface of the brush handle 3. At this time as well, the protrusion 3a serves as a guide for the fingers.

Similarly, the brush handle 3 can be easily rotated from side to side by operating the thumb and forefinger.

[Brief explanation of drawings]

The drawings show one embodiment of this invention, in which Fig. 1 is a perspective view of a toothbrush, Fig. 2 is an exploded perspective view thereof, and Fig. 3 is a perspective view of the toothbrush.
FIG. 4 is a side view showing the tilted state, FIG. 4 is a front view also showing the tilted state, and FIG. 5 is a perspective view of the toothbrush held in another grip state. 1...Toothbrush, 2...Brush, 3...Brush handle, 3a, 4a...Protrusion, 4...Grip handle, 5...
...A rod-shaped elastic body.

Claims (1)

[Scope of utility model registration request] A position near the brush side of the handle with brush flocked at one end is divided into a brush side and a grip part side, and the lower surfaces of the brush handle and grip handle of the divided part are made to protrude slightly downward to form a finger hook protrusion. A toothbrush characterized in that each of the opposing surfaces is provided with a fitting hole, a rod-shaped elastic body is inserted into the fitting hole, and both divided opposing surfaces are closely connected via the rod-shaped elastic body.