JP3098055U - Portable tooth polisher etc. - Google Patents

Abstract

A portable tooth polisher and the like is provided with easy-to-use polishes of teeth and the like, which can be easily performed at any polishing place.
A portable tooth polisher or the like has a grip having a housing containing a battery and a motor, and a head arm detachably mounted on the grip. The head arm 8 is attached to the grip portion at an angle, and has a polishing rotor 24 at the tip of the head arm 8. The head arm 8 can be attached to the gripping portion with the direction of the polishing rotor 24 reversed, and the head arm 8 can be replaced as necessary so as to be easy to use according to the mode of use.
[Selection] Fig. 9

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a portable tooth surface polisher for removing tobacco and other deposits and deposits attached to a tooth surface by polishing, and polishing and polishing a nail surface, and particularly to a polishing device main body. The present invention relates to a portable tooth surface and the like polishing machine having a polishing rotor at the tip of a head arm to be used.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as this type of portable tooth polisher or the like, a portable tooth flank cleaning polisher having a polisher body incorporating a motor, a battery, and a driving gear driven by the motor is known. (For example, Patent Document 1, FIGS. 1 and 2) In this polisher, the motor is arranged in the polisher body such that the rotation axis of the motor is parallel to the axis of the polisher body. Then, the rotation axis angle of the polishing tip (polishing rotor) attached to the drive gear can be adjusted from 0 ° to 135 ° with respect to the rotation axis of the motor.
[0003]
As another conventional technique, there is known a portable tooth surface nail surface cleaning / polishing machine in which a head arm is detachably attached to a main body containing a battery, a motor, and a rotation output unit. (For example, Patent Document 2, FIG. 1, FIG. 10, and FIG. 14) The motor is built in the main body so that the rotation axis of the motor is parallel to the axis of the main body of the polishing machine. The head arm extends substantially in parallel with the rotation axis of the motor, and its tip end is slightly inclined outward, and the polishing rotor is connected to the inclined portion upward. Further, in this prior art, the head arm can be mounted on the main body of the polishing machine by changing its direction by 180 °.
[0004]
[Patent Document 1]
JP-A-2000-350736 (FIGS. 1 and 2)
[0005]
[Patent Document 2]
JP-A-2002-102254 (FIGS. 1, 10, and 14)
[0006]
[Problems to be solved by the invention]
In the conventional technique disclosed in Patent Document 1, since the polishing tip is attached to the main body of the polishing machine, there is a problem that it is difficult to polish a portion where the polishing tip does not easily reach even if the angle of the polishing tip is adjusted. For example, when polishing a tooth, there is a problem that even when the surface side of the tooth can be easily polished, the main body touches the tooth when polishing the inner surface side of the tooth.
[0007]
Further, in the latter conventional technique disclosed in Patent Document 2, the head arm can be mounted on the main body by changing the direction by 180 °, so that the direction of the polishing rotor can be inverted to select an easy-to-use direction. However, the head arm is on a line substantially parallel to the longitudinal axis of the main body, and even if the head is changed by 180 °, the polishing rotor only turns left and right near the main body axis. For this reason, changing the direction of the polishing rotor makes it easier to use, but for example, if you want to grind the inside of the teeth, operate the grinder body close to the face so that the head arm is located on the back of the teeth. There is a need to. Then, according to the position of the back surface of the tooth, the main body must be moved greatly near the face for operation. Further, depending on the polishing position, the switch cannot be operated with either the right or left hand that is easy to use.
[0008]
The present invention has been made in view of the above points, and provides, for example, a portable flank grinder with good operability that can easily grind even the back side of the tooth without requiring excessive operation. The purpose is to do.
[0009]
[Means for Solving the Problems]
The portable tooth polisher and the like of the present invention comprises a motor driven by a built-in battery, a grip portion including a housing for accommodating a first rotation mechanism driven by the motor, and a first rotation mechanism. A rotation transmission shaft removably engaged with the portion, the rotation transmission shaft extending substantially in the longitudinal direction of the housing, and a second rotation mechanism portion coupled to the rotation transmission shaft and having a rotation axis substantially perpendicular to the rotation transmission shaft. A head arm removably mounted on the gripper, and a polishing rotor removably mounted on the end of the rotating shaft of the head arm, the polishing rotor facing sideways with respect to the length direction of the head arm. In a portable type tooth polisher or the like, the gripping portion has a receiving portion for receiving the head arm at a predetermined angle with respect to the axis of the gripping portion, and the rotation axis of the polishing rotor is aligned with the axis of the head arm and the gripping portion. In the plane containing the axis of Head arm, and is characterized in that it is configured such that it can be mounted at a predetermined angle to the receiving portion rotated 180 ° to about the axis of the head arm to the orientation of the polishing rotor reversed.
[0010]
Further, the motor is disposed in the housing such that an output shaft of the motor is substantially parallel to an axis of the grip portion, and an input shaft of the first rotation mechanism connected to the motor is parallel to an output shaft of the motor. The output shaft connected to the second rotation mechanism is inclined with respect to the output shaft of the motor, and the rotation transmission shaft of the second rotation mechanism is parallel to the output shaft of the first rotation mechanism. It can be configured as follows.
[0011]
Furthermore, the angle between the axis of the head arm and the axis of the gripper can be configured to be in the range of 10 ° to 30 °.
[0012]
[Effect of the invention]
In the portable tooth polisher of the present invention, the gripping portion has a receiving portion that receives the head arm at a predetermined angle with respect to the axis of the gripping portion, and the rotating shaft of the polishing rotor is It is in a plane including the axis of the head arm and the axis of the gripper. The head arm is configured to be mounted at a predetermined angle on the receiving portion by being turned 180 ° around the axis of the head arm so as to reverse the direction of the polishing rotor, so that the following effects are obtained.
[0013]
That is, by turning the head arm 180 degrees and replacing it with the gripping portion, the polishing rotor at the tip of the head arm can be arranged on any side of the tip end of the head arm inclined at a predetermined angle from the axis of the gripping portion. In other words, the direction of the polishing rotor can be arbitrarily set on the head arm at a predetermined angle so that the polishing can be easily performed.For example, after polishing the surface of the teeth, the head arm is turned over, and the polishing is usually performed. Work such as polishing the back surface of a difficult tooth can be easily performed.
[0014]
Further, the motor is disposed in the housing such that an output shaft of the motor is substantially parallel to an axis of the grip portion, and an input shaft of the first rotation mechanism connected to the motor is connected to an output shaft of the motor. The output shaft connected to the second rotation mechanism is parallel to the output shaft of the motor, and the rotation transmission shaft of the second rotation mechanism is connected to the output shaft of the first rotation mechanism. The following effects can be obtained when they are configured to be parallel.
[0015]
That is, the housing can be made compact when the motor is housed in the housing of the grip portion, and the output shaft of the first rotation mechanism is inclined, and the rotation transmission shaft of the second rotation mechanism is rotated by the first rotation. Since it is parallel to the output shaft of the mechanism, it is possible to easily make the structure in which the head arm is inclined with respect to the grip.
[0016]
Further, when the angle between the axis of the head arm and the axis of the gripping portion is in the range of 10 ° to 30 °, for example, both the front and back surfaces of the teeth can be easily polished. it can.
[0017]
Further, the above polishing and cleaning operations can be performed not only on the tooth surface but also on the nail surface. In addition, since the head arm is inclined at a predetermined angle, it can be easily operated by either left or right hand.
[0018]
[Embodiment of the invention]
Hereinafter, a preferred embodiment of a portable tooth polisher or the like (hereinafter simply referred to as a polisher) of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view of a polisher equipped with a cap. FIG. 2 is a side view of the polishing machine of FIG. First, a description will be given with reference to FIGS.
[0019]
The polisher 1 has a main body 2 and a transparent resin cap 4 attached to the main body 2. 1 and 2 show only the outline of the outer shape, and the thickness is omitted. The main body 2 is composed of a grip portion made of a synthetic resin housing 5 and a synthetic resin handle, that is, a head arm 8 which is detachably attached to the grip portion. The housing 5 includes a cylindrical tubular portion 3 and a mounting seat 20 attached to the upper portion of the tubular portion 3 by latching. The details of the latch engagement will be described later.
[0020]
The mounting seat 20 has a generally frustoconical shape in which the upper part is narrowed, and the above-described head arm 8 is mounted on the upper part of the mounting seat 20. A non-slip projection 10 and a pressing portion 12 are integrally molded on the front surface of the tubular portion 3, and a non-slip portion 14 made of elastic synthetic resin is overmolded and formed as a part of the housing 5. I have. Since the slip portion 14 has elasticity, the pressing portion 12 can be pressed by a finger from the outside. At the lower end of the tubular portion 3, a lid 18 for holding a battery 16 (FIG. 3) is screwed and attached to the tubular portion 3.
[0021]
The head arm 8 is attached such that the axis 91 of the head arm 8 is inclined with respect to the axis 90 of the gripping portion. The details of this mounting mode will be described later. Although the head arm 8 shown in FIGS. 1 and 2 shows one mounting position, it can be mounted in the opposite direction. The mounting in the opposite direction will be described later. A polishing rotor (polishing chip) 24 is detachably attached to the tip of the head arm 8.
[0022]
As shown in FIGS. 1 and 2, the cap 4 can be attached to the upper end of the tubular portion 3 with the head arm 8 attached to the housing 5. At this time, the cap 4 does not contact the polishing rotor 24 attached to the head arm 8. Therefore, it is not necessary to remove the head arm 8 for storage after completion of the polishing operation and store it in another place, so that the polishing machine 1 can be kept hygienic.
[0023]
Next, the polishing machine 1 will be described in more detail with reference to FIG. FIG. 3 is a sectional view taken along line 3-3 of the polishing machine 1 of FIG. The inside of the cylindrical portion 3 is a substantially cylindrical cavity 26, and a case 28 is accommodated in the cavity 26. The case 28 has two halves, each of which forms a half of a substantially cylindrical shape. The battery 16, between one half 27 of the case 28 and the other half (not shown), A motor 30, a switch 32, and a rotation mechanism (first rotation mechanism) 34 are accommodated, and these components are positioned and fixed in the case 28. FIG. 3 shows only one half 27.
[0024]
In order to insert the case 28 into the tubular portion 3, the cover 18 screwed to the tubular portion 3 is removed and inserted from the lower end of the tubular portion 3, and then the cover 18 is attached to the tubular portion 3. . Then, the upper end of the case 28 is screwed to the partition 38 above the tubular portion 3 by a screw (not shown), and the case 28 is fixed in the tubular portion 3. The above-described switch 32 is located immediately behind the pressing portion 12 and is configured to operate according to the operation of the pressing portion 12. The electric wires (electric circuits) connecting the switch 32 and the battery 30 are omitted in FIG. A sealing member 36 having elasticity is attached to the tip of the cylindrical portion 3, that is, the upper end in FIG. The sealing member 36 is fixed together with the case 28 to the opening 38a of the partition wall 38 at the upper part of the tubular portion 3 by being screwed together with the above-mentioned screw (not shown).
[0025]
The upper portion of the housing 5 is a mounting seat 20 made of resin as described above, and the head arm 8 is mounted on the mounting seat 20. On the head arm 8, a rotation mechanism 40 (second rotation mechanism) connected to the rotation mechanism 34 is arranged. Hereinafter, the rotation mechanism units 34 and 40 will be described. The description will be made with reference to FIG. FIG. 4 is a partially enlarged cross-sectional view showing only the rotation mechanisms 34 and 40 in an enlarged manner.
[0026]
In FIG. 4, when the rotation shaft (output shaft) 30a of the motor 30 rotates, the gear 42 attached to the rotation shaft 30a rotates, and the rotation is transmitted to the gears 43, 44, 45, 46, and 47 linked therewith. And the rotation of the motor 30 is reduced. The gears 43 and 45 rotate around a shaft (input shaft) 48, and the gears 44 and 46 rotate around a shaft 50. The shaft 48 and the shaft 50 are held between the halves of the case 28. The motor 30 has a rotating shaft 30a arranged parallel to the axis 90 of the gripper 6, and a shaft 48 arranged parallel to the rotating shaft 30a.
[0027]
The gear 47 is fixed to a lower end of a rod (rotation transmission shaft) (output shaft) 52, and when the gear 47 rotates, the rod 52 also rotates. The rod 52 is entirely inclined at a predetermined angle, and its tip has a length protruding upward from the sealing member 36 described above. Since the rod 52 rotates in close contact with the hole 36a of the sealing member 36, entry of moisture, water, and the like downward from the sealing member 36 is prevented. Note that the rod 52 is held between the two halves similarly to the shafts 48 and 50. In each half, grooves are formed at positions aligned with each other to form a hole or a hole in cooperation with each other when the halves are united, and a shaft 30a, 48, 50 and 52 are pivotally supported.
[0028]
The mounting seat 20 has two opposing locations, namely, the non-slip portion 14 side, and an opening 56 (FIGS. 1 and 3) on the opposite side, and engages with the latch 22 provided near the partition 38. Fixed. At the upper end of the mounting seat 20, a receiving hole (receiving portion) 58 inclined upward by a predetermined angle is formed from the upper end to the inside. The insertion portion 60 at the lower end of the head arm 8 is fitted into the receiving hole 58 without looseness. A latch projection 58 a is formed below the receiving hole 58, and an opening 60 a that engages with the latch projection 58 and holds the head arm 8 in the receiving hole 58 is formed in the insertion portion 60. The receiving hole 58 and the insertion portion 60 have a circular cross-sectional shape, and the fitting direction is determined by keying each other.
[0029]
Next, this keying will be described with reference to FIG. FIG. 10 shows a state in which the housing 5 with the head arm 8 removed is viewed from above, and a state in which the removed head arm 8 is viewed from the insertion section 60 side. However, the polishing rotor 24 has been removed from the head arm 8. In the receiving hole 58 of the mounting seat 20, a pair of key grooves 92 extending at a predetermined angle are formed at positions facing each other. This predetermined angle coincides with the axial direction of the head arm 8 when the head arm 8 is attached to the receiving hole 58.
[0030]
On the other hand, a pair of key ribs 94 that engage with the key groove 92 is formed at a position corresponding to the key groove 92 on the outer periphery of the insertion portion 60 of the head arm 8. As a result, the head arm 8 is mounted on the mounting seat 20 at a predetermined angle. Further, since the key groove 92 and the key rib 94 are formed at positions facing each other in a circular shape, the head arm 8 can be mounted with the direction of the head arm 8 reversed by 180 °. That is, as shown in FIG. 7, the head arm 8 can be mounted in a direction opposite to the position shown in FIG. At this time, the polishing rotor 24 is turned in the opposite direction to that in FIGS.
[0031]
Referring again to FIGS. 3 and 4, another rod (rotation transmission shaft) 62 that constitutes the rotation mechanism section 40 is supported in the head arm 8 along the longitudinal direction of the head arm 8. A gear 64 is formed on the upper end of the rod 62, and the gear 64 and the gear 66 mesh substantially at right angles. Since the gear 66 is fixed to the rotating shaft 68 of the polishing rotor 24, when the rod 62 rotates, the rotating shaft 68 rotates accordingly.
[0032]
Next, the engagement between the rod 52 and the rod 62 will be described with reference to FIG. FIG. 5 is an enlarged partial cross-sectional view showing an engagement portion between the rods 52 and 62. As shown in FIG. The tip of the rod 52 is stamped to form a pair of oppositely-facing projections 54 (FIG. 4). Each projection 54 has a plate surface parallel to the longitudinal direction of the rod 52, and the outside is formed in a curved shape.
[0033]
On the other hand, an engagement hole 70 is formed at the lower end of the rod 62, and an engagement groove 72 for receiving the above-described protrusion 54 of the rod 52 is formed on the inner surface of the engagement hole 70. Four are formed at equal intervals along the circumference. A taper 71 is formed at the open end of the engagement groove 72, that is, below the engagement hole 70 in FIG. The taper 71 has a function of guiding the protrusion 54 into the engagement groove 72 when the rod 52 is inserted into the engagement hole 70. As shown in FIG. 10, the taper 71 is formed between the grooves 72 so as to be continuous with the grooves 72 on both sides thereof. Therefore, even if the head arm 8 is replaced, the rods 52 and 62 can easily engage with each other.
[0034]
When the head arm 8 is inserted into the receiving hole 58, the projection 54 enters the engagement groove 72 and engages (locks) with each other in the rotation direction. Thus, the rod 52 of the rotation mechanism 34 and the rod 62 of the rotation mechanism 40 are integrally connected. The engagement groove 72 and the projection 54 are collectively referred to as an engagement portion.
[0035]
Next, the structure of the head arm 8 will be described with reference to FIG. FIG. 6 is a partially enlarged cross-sectional view partially showing a cross section of a tip end portion of the head arm 8 to which the polishing rotor 24 is mounted. The head arm 8 has a space 65 formed from the insertion portion 60 to the distal end thereof, and the rod 62 described above is arranged in the space 65. A rotation shaft 68 is provided. A shaft support 74 that supports the rotation shaft 68 is fixed to the head arm 8 by ultrasonic waves in the opening of the space 65.
[0036]
The shaft support portion 74 has an elastic ring 74a that seals the rotation shaft 68 inside. A spherical recess 76 is formed at one end of the rotating shaft 68, and a spherical projection 78 complementary to the recess 76 is formed on the inner surface of the head arm 8 at a position corresponding to the recess 76. . The rotation shaft 68 is rotatably supported by a shaft support 74 and a projection 78. A screw hole 80 is formed at the other end of the rotating shaft 68, and the polishing rotor 24 is attached to the screw hole 80. If the polishing rotor 24 is worn, it can be easily replaced by removing it from the screw hole 80.
[0037]
Next, the polishing rotor 24 will be described. The polishing rotor 24 shown in FIG. 6 is an example of a polishing rotor. The polishing rotor 24 has a substantially cylindrical shape molded from elastic rubber, and has a concave portion 82 and a flange 84 and a screw 86 on the opposite side of the concave portion 82. To attach the polishing rotor 24 to the rotation shaft 68, the screw 86 may be screwed into the screw hole 80. At this time, a gap G is formed between the flange 84 and the surface of the shaft support 74. A plurality of radial blades 89 extending into the gap G are formed integrally with the flange 84.
[0038]
The blade 89 includes a plurality of curved ribs 88. The blades 89 generate wind as the polishing rotor 24 rotates, and this wind prevents the abrasive applied to the polishing rotor 24 from entering the gap G. In addition, the abrasive may be directly removed to the outside by the blade 89 without depending on the wind. Each rib 88 may extend linearly, or may extend while changing its thickness and height.
[0039]
Next, the replacement of the head arm 8 will be described in more detail with reference to FIG. 7 again. FIG. 7 is a side view of the polishing machine 1 of FIG. 1 viewed from the same direction, showing a state in which the head arm 8 shown in FIG. 1 is mounted in reverse. The head arm 8 is mounted on the mounting seat 20 at a predetermined angle as shown in FIGS. In other words, the head arm 8 is inclined at a predetermined angle so that the rotation shaft 68, the axis 91 of the head arm 8, and the axis 90 in the longitudinal direction of the gripper 6 shown in FIG.
[0040]
Therefore, the polishing rotor 24 can be positioned symmetrically with respect to the inclined head arm 8. That is, the polishing rotor 24 faces upward in FIG. 1 and faces downward or inward in FIG. The position shown in FIG. 1 is suitable for, for example, polishing the surface of a tooth (a body to be polished), and the position shown in FIG. 7 is suitable for polishing the back surface of a tooth. Since the head arm 8 is inclined as described above, if there is a portion that is difficult to polish, the head arm 8 can be appropriately replaced to change the head arm 8 to an easy-to-use direction. The inclination angle of the head arm 8 is preferably in the range of 10 ° to 30 ° from the viewpoint of usability.
[0041]
Next, the polishing rotor will be described in more detail with reference to FIGS. FIG. 8 shows a polishing rotor according to another embodiment, and FIG. 9 is an enlarged view of the polishing rotor 102 of FIG. The polishing rotor 102 has a substantially conical shape in which a plurality of irregularities are radially formed on an elastic surface. A screw 106 connected to the rotating shaft 68 is attached to the base 104. A blade 112 formed of a plurality of arc-shaped ribs 110 is integrally formed on an end face 108 of the base 104 facing the shaft support 74.
[0042]
The shape of the rib 110 is formed in a curved shape obliquely outward from the center of the polishing rotor 102 so that an air current (wind) is generated outward when the polishing rotor 102 rotates. The shape of the rib may be a linear shape formed obliquely, in addition to the arc shape. Further, the length of the rib may be shorter than that shown in FIG. In addition, the shape is not limited to these shapes as long as the abrasive can be removed.
[0043]
The rotation direction of the polishing rotor 102 is clockwise (clockwise) in FIG. The ribs 110 have a function of blowing off the abrasive (not shown) which tends to enter the gap G from the periphery of the blades 112 by generating wind by the rotation. Therefore, since the abrasive does not enter the gap G, it is possible to prevent the shaft support 74 and the main body 2 from being worn by the abrasive.
[Brief description of the drawings]
FIG. 1 is a front view of a portable tooth polisher or the like with a cap attached. FIG. 2 is a side view of the portable tooth polisher or the like of FIG. 1. FIG. 3 is a view of the portable tooth polisher of FIG. FIG. 4 is a partial enlarged cross-sectional view showing only the rotation mechanism section. FIG. 5 is a partial cross-sectional view showing an enlarged rod engagement portion of the rotation mechanism section in FIG. 4. FIG. 6 is a partially enlarged cross-sectional view partially showing a cross section of a tip portion of a head arm on which a polishing rotor is mounted. FIG. 7 is a portable tooth surface of FIG. 1 showing a state in which the head arm shown in FIG. FIG. 8 is a side view of the polishing machine viewed from the same direction. FIG. 8 is a view showing a polishing rotor of another embodiment. FIG. 9 is an enlarged view of the polishing rotor of FIG. 8 viewed from an arrow. FIG. FIG. 4 is a diagram showing both a state in which the housing in the opened state is viewed from above and a state in which the removed head arm is viewed from the insertion portion side.
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS 1 Portable tooth polisher 2 Body 5 Housing 6 Gripping part 8 Head arm 16 Battery 24, 102 Polishing rotor 30 Motor 34 First rotating mechanism section 40 Second rotating mechanism section 48 Input shaft 52 Rotation transmission shaft (output) axis)
62 rotation transmission shaft 58 receiving portion 68 rotation shaft 72 engagement groove (engagement portion)
90 Axis of gripper 91 Axis of head arm

Claims (3)

A motor driven by a built-in battery, and a grip portion including a housing for accommodating a first rotation mechanism driven by the motor;
A rotation transmission shaft that is detachably engaged with the first rotation mechanism and extends substantially in the longitudinal direction of the housing; and a rotation shaft that is connected to the rotation transmission shaft and that is substantially perpendicular to the rotation transmission shaft. A head arm removably mounted on the grip portion, which accommodates a second rotating mechanism portion having
A portable tooth surface or the like polishing machine having a polishing rotor detachably attached to an end portion of the rotation shaft of the head arm and facing sideways with respect to a length direction of the head arm,
The grip portion has a receiving portion that receives the head arm at a predetermined angle with respect to an axis of the grip portion,
The rotation axis of the polishing rotor is in a plane including the axis of the head arm and the axis of the gripper, and the head arm is rotated by 180 ° around the axis of the head arm so that the orientation of the polishing rotor is reversed. A portable tooth surface and the like polishing machine, which is configured to be rotatable and attachable to the receiving portion at the predetermined angle. The motor is disposed in the housing such that an output shaft of the motor is substantially parallel to the axis of the grip portion, and an input shaft of the first rotation mechanism, which is connected to the motor, is connected to the motor. An output shaft parallel to the output shaft and connected to the second rotation mechanism is inclined with respect to the output shaft of the motor, and the rotation transmission shaft of the second rotation mechanism is connected to the second rotation mechanism. 2. The portable tooth flap polishing device according to claim 1, wherein the output shaft is parallel to the output shaft of the first rotation mechanism. 3. The portable tooth flap polishing machine according to claim 2, wherein an angle between the axis of the head arm and the axis of the grip portion is in a range of 10 to 30 degrees.

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