JPS63226355A - Electric massager - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Technical fields> The present invention relates to an electric massaging machine.

<Prior Art> Electric massaging machines have been widely used to perform muscle massage on shoulders and the like. This electric massaging machine, as disclosed in, for example, Japanese Utility Model Publication No. 51-21588, includes a housing having a grip, a support member reciprocatably attached to the housing, and a device for reciprocating the support member. It includes a drive source such as an electric motor and a vibrator attached to one end of the support member.

However, in such an electric massaging machine, the following problem exists in connection with the fact that the vibrator is simply attached to one end of the support member. That is, when the drive source is energized to cause the support member to reciprocate, a simple reciprocating vibration is applied to the vibrator. Therefore, although it is possible to obtain a relatively shallow striking force with the vibrator, on the other hand,
It is not possible to obtain a relatively deep hitting force that effectively acts on the affected area and has a high massage effect.

<Object of the Invention> The present invention has been made in view of the above facts, and its main purpose is to provide an excellent electric massaging machine that can obtain a relatively deep hitting force with a relatively hour wheel configuration. It is to provide.

<Summary of the Invention> According to the present invention, in an electric massager equipped with a vibrator that is vibrated by the action of a driving source; An electric massaging machine is provided.

<Preferred Specific Examples of the Invention> Hereinafter, specific examples of an electric massaging machine constructed according to the present invention will be described with reference to the accompanying drawings.

First, with reference to FIG. 1, the first part of the electric massaging machine according to the present invention
A specific example will be explained.

In FIG. 1, the illustrated electric massaging machine includes a housing 2. The electric massaging machine shown in FIG. In the illustrated embodiment, the housing 2 has a cylindrical body portion 4 and a grip portion 6 extending from the body portion 4 . This housing 2 can be made of, for example, a synthetic resin material.

A support member 8 is attached to the main body portion 4 .

In a specific example, the support member 8 is constituted by a rod-shaped member, one end of which is supported by one end wall lO of the main body portion 4 via a sleeve member 12 so as to be reciprocally movable in the direction shown by the arrow 14. The other end is supported by the other end wall 16 of the main body 4 via a sleeve member 18 so as to be able to reciprocate in the direction shown by the arrow 14.

Further, in a specific example, an electric motor 20 that constitutes a drive source for reciprocating the support member 8 as described later is disposed within the grip portion 6.

Between this electric motor 20 and the support member 8,
A 1-tooth connection mechanism 22 is interposed. To explain further,
An output shaft 24 of the electric motor 20 projects into the main body 4 through an opening 28 formed in a side wall 26 of the main body 4 .

On the other hand, the drive coupling mechanism 22 has a crank member 30. A short cylindrical member 32 is rotatably attached to one end of the crank member 30 (the right end in FIG. 1) via a bearing member (not shown), and eccentrically attached to the short cylindrical member 32, the electric motor 20 is rotated. The output shaft 24 is rotatably connected to the short cylindrical member 32 (in the specific example, an eccentric through hole is formed in the short cylindrical member 32, and the output shaft 2 of the electric motor 20 is connected to the through hole.
4 is rotatably received). Further, one end portion (lower end portion in FIG. 1) of a connecting member 34 is rotatably connected to the other end portion (left end portion in FIG. 1) of the crank member 30 (in the specific example, the other end portion of the crank member 30 A through hole is formed in the through hole, and one end of the connecting member 34 is rotatably received in the through hole), and the other end of the connecting member 34 (
(upper end in FIG. 1) is connected to the supporting member 8 (in a specific example, a through hole is formed at the other end of the connecting member 34, the supporting member 8 is attached through this through hole, and the connecting member 34 is connected to the supporting member 8). 34 and the support member 8 are fixed by means such as an adhesive.) As described above, when the electric motor 20 is rotated in a predetermined direction, the short cylindrical member 32
, the support member 8 is reciprocated in the direction shown by the arrow 14, that is, in the left-right direction in FIG. 1, via the crank member 30 and the connecting member 34.

In the specific example, one end of the support member 8 penetrates one end wall 10 of the main body 4 and projects outward, and the vibrator 36 is attached to this projecting end. The illustrated vibrator 36 is a hollow cylindrical body, specifically a hollow cylindrical body consisting of a cylindrical sleeve member 38 defining a peripheral side wall, a disc-shaped member 40 defining one end wall, and a disc member 42 defining the other end wall. A cylindrical space 44 is defined by a cylindrical sleeve member 38, a disc-shaped member 40, and a disc-shaped member 42. In a specific example, the disk-shaped member 40 acts as a striking portion and preferably has a somewhat convex outer surface as shown in FIG. The vibrator 36 is preferably made of a metal material such as titanium, as will be easily understood from the description below. In the specific example, a male screw portion is formed at one end of the support member 8, and a male screw portion is formed at the other end of the disk member 42 of the vibrator 36.
A female screw portion is formed in the support member 8, and the vibrator 36 is mounted on the support member 8 as required by screwing the male screw portion of the support member 8 into the female screw portion of the vibrator 36.

In the massaging machine of the first specific example, it is important that the play element 46 is movably mounted within the space 44 provided in the vibrator 36. In the specific example, the play element 46 has a cylindrical shape corresponding to the vertical cross-sectional shape of the space 44, and the cylindrical play element 46 moves in the space 44 in the direction indicated by the arrow 48, which is the axial direction of the vibrator 36 (i.e., (left/right direction in Figure 1)
It is attached so that it can be moved freely. The distance between the outer circumferential surface of the player 46 and the inner circumferential surface of the cylindrical sleeve member 38 of the vibrator 36 in the radial direction of the player 46 is preferably about 0.50, for example, and this distance l.

If is made relatively large, smooth reciprocating motion of the play piece 46 in the direction shown by the arrow 48 becomes substantially difficult. Also, Yuko 46
The distance 12 between both end surfaces of the play piece 46 and the inner surfaces of the disc-shaped member 40 and the disc member 42 in the axial direction is also, for example, 0.
．． It is preferable that the spacing 12 is about 5fi, and if the interval 12 is relatively large, the impact applied to the disc-shaped member 40 and the disc member 42 of the vibrator 36 due to the reciprocating movement of the play element 46 will be large, and the vibrator will be damaged. There is a risk of this happening. As will be easily understood from the description below, it is preferable that at least the circumferential surface of the player 46 is made of a metal material such as stainless steel, and in a specific example, the player body 50 is formed of epoxy resin. 50 is covered with a plate member 52 made of stainless steel.

Next, the effects of the massaging machine described above will be explained as follows.

When the electric motor 20 is energized and rotates in a predetermined direction,
Accordingly, the support member 8 is reciprocated in the direction indicated by the arrow 14 as described above. (Then, the vibrator 36 is also reciprocated in the direction shown by the arrow 14 together with the support member 8. Also, when the vibrator 36 is made to reciprocate in this way, the playr 46 is moved in the direction shown by the arrow 48 in the space 44. Since the reciprocating motion of the vibrator causes the play element 46 to also reciprocate in the direction shown by the arrow 48 within the space 44, the play element 46 moves toward the disc-shaped member 40 of the vibrator 36.
By abutting against the disc member 42, an impact force is applied to the vibrator 36. Thus, the arrow 14 of the support member 8
The vibrator 36 vibrates in a complex manner due to the reciprocating motion in the direction shown by and the reciprocating motion of the playr 46 in the direction shown by the arrow 48 in the space 44, and the vibration imparted by the reciprocating motion of the support member 8 in the direction shown by the arrow 14. (This is a composite vibration of the vibrations imparted by the reciprocating motion of the playback 46 in the direction shown by the arrow 48)
, it is possible to generate stronger vibrations than when the vibrator 36 simply reciprocates, and as a result, it is possible to obtain a relatively deep hitting force with a high massaging effect, and the vibrator 36 can be applied to the affected area. Works effectively. Also,
Due to the reciprocating movement of the play piece 46 within the space 44 of the vibrator 36, frictional heat is generated by mutual friction between the vibrator 36 and the play piece 46, and the vibrator 36 is warmed by this frictional heat. Even without using a heater etc.
The vibrator 36 heated by frictional heat can also provide a thermal effect on the affected area. This effect can be obtained more effectively by forming the peripheral surfaces of the vibrator 36 and the playback 46 from a metal material.

In addition, it is more preferable to use the plaything having the structure shown in FIG. 2. In FIG. 2, the illustrated playback 46' includes a cylindrical playback body 56 formed from a synthetic resin material such as epoxy resin. The playback body 56 has an eccentric weight 5 eccentrically extending in the axial direction from the central axis.
8 is disposed, and the peripheral surface of the playback body 56 is covered with a relatively thin sheet-like member 60 made of stainless steel. The eccentric weight 58 can be made of a metal material with a high specific gravity, such as lead.

In the player 46' constructed in this way, its center of gravity is offset from the central axis to the side where the eccentric weight 58 is present. Therefore, when such a playr 46' is used, as is easily understood, when the player 46' is reciprocated in the direction shown by the arrow 48, a rotational force is generated in the playr 46' itself, and this rotation The force causes the play element 46' to rotate in a predetermined direction. Therefore, due to such rotation, directivity in the direction shown by the arrow 48 is generated in the play piece 46', thereby stabilizing the reciprocating movement of the play piece 46' in the direction shown by the arrow 48, which provides a comparatively better massage effect. You can get deep hitting power.

Incidentally, instead of providing the eccentric weight 58, a through hole extending in the axial direction may be simply formed eccentrically. In such a case, the center of gravity of the playback is eccentric to the side opposite to the side where the through hole exists. It will be done.

Alternatively, a permanent magnet may be fixed to a player 46 movably disposed within the space 44 of the vibrator 36, so that the player 46 and the permanent magnet move together. In such a case, a magnetic effect on the affected area can also be obtained by the magnetic action of the permanent magnet.

In the specific example, the vibrator 36 is provided at one end of the support member 8, but it is also possible to provide a vibrator at the other end.

Next, a second specific example of the electric massaging machine according to the present invention will be described with reference to FIGS. 3 and 4.

In the first specific example, the vibrator 36 is vibrated by the action of the support member 8 that is reciprocated by the drive source, but in the second
In the specific example, the vibrator is vibrated by the action of a vibrating eccentric weight rotated by a drive source.

3 and 4, the second embodiment of the electric massaging machine includes a cylindrical housing 102. As shown in FIGS. This housing 102 also acts as a grip part that is gripped by the operator. A deforming means 104 that can be elastically deformed in any direction is attached to one end (upper end in FIG. 3) of the housing 102, and a vibrator 106 is attached to the deforming means 104.The deforming means 104 shown in FIG. It is composed of a coil spring 108 and a protective sleeve 110 that covers the coil spring 108. One end of the coil spring 10B and the protective sleeve 11O are attached to the housing 102, and the other ends are attached to the vibrator 106.

The protective sleeve 110 can be made of a rubber material or a synthetic resin material, for example, as in the specific example.

The illustrated vibrator 106 includes an outer member 112 and an inner member 1.
It consists of 14. In an embodiment, the outer member 112 includes a sleeve-shaped circumferential wall 116 and a sleeve-shaped circumferential wall 116.
It has end walls 118a and 118b provided at both ends of 6, and the inside thereof is hollow. Opposing portions of the circumferential wall 116 of the outer member 112 are provided with protrusions 120a and 120b that protrude radially outward. still,
The protrusions 120a and 120b act as striking parts. In addition, the inner member 114 includes a sleeve-shaped peripheral side wall 1
22 and end walls 124 provided at both ends of this peripheral wall 122
a and 124b, and the inside thereof is also hollow.

This inner member 114 is installed as required inside the outer member 112 as shown in FIGS. 3 and 4, and by installing it in this manner, two spaces 126a and 126b are defined in the vibrator 104 ( Specifically, outer member 112
The inner surface of the protrusion 120a and the peripheral wall 12 of the inner member 114
One space 126a is defined by the outer surface of the outer member 112, and one space 126a is defined by the outer surface of the inner member 11.
4), and such space 126a and 1
A play piece 128 is movably disposed on each of the parts 26b. In the specific example, the outer member 112 and the inner member 114 define cylindrical spaces 126a and 126b, and correspondingly the playback 128 is cylindrically shaped and extends in the axial direction of the spaces 126a and 126b as indicated by arrow 130. It is arranged so that it can be moved freely. In the specific example, the outer member 112, the inner member 114, and the play piece 128 are made of synthetic resin, and the housing 102 is also made of synthetic resin.

Furthermore, an electric motor 132 that constitutes a drive source for vibrating the vibrator 106 is disposed within the housing 102, and a vibrating eccentric weight 134 is disposed within the vibrator 106. The weight 134 is rotated by the action of the electric motor 132. To explain further, in the illustrated example, the output shaft 13 of the electric motor 132
2a is connected to the connecting shaft 13B by a fixing screw 136. The connecting shaft 138 is rotatably supported by a support block 142 via a pair of bearings 140, and the support block 142 is mounted within one end of the housing 102. On the other hand, the eccentric vibration weight 134 having a substantially fan shape is arranged in the space of the inner member 114, and its base is connected to the inner member 114.
The rotary shaft 144 is rotatably supported between the 14 end walls 124a and 124b by a fixing screw 146.

Then, the connecting shaft 138 on the housing 102 side and the vibrator 1
A rotating shaft 144 on the 06 side is drivingly connected via a connecting means 148 such as a spring shaft that can be elastically deformed in any direction.

In the electric massaging machine of the second specific example, when the electric motor 132 is energized, the connecting shaft 138 and the connecting means 148
For example, the eccentric weight 134 is
50 (FIG. 4). (Then,
An eccentric weight 134 exists eccentrically from the central axis of the rotating shaft 144, and a playback 128 is provided at an opposing portion of the vibrator 106.
is installed inside the vibrator 106, a force is generated that causes the vibrator 106 to vibrate mainly in the directions shown by arrows 152 and 154.
is reciprocated in the directions shown by arrows 152 and 154 (such reciprocating movement is allowed because the deforming means 104 and the connecting means 148 are elastically deformable in any direction). Thus, the arrows 152 and 1 of the vibrator 106
Due to the reciprocating motion in the direction indicated by 54, the play piece 128 also moves in the direction indicated by arrow 1.
The playback 106 is reciprocated in the direction indicated by 30, and an impact force is applied to the vibrator 106 by abutting the outer member 112 and the inner member 114 of the vibrator 106. Thus, arrows 152 and 1 due to rotation of eccentric weight 134
Reciprocation in the direction indicated by 54 and spaces 126a and 126b
Due to the reciprocating movement of the play piece 128 in the direction shown by the arrow 130, the vibrator 106 vibrates in a complicated manner as in the first example, and the same effect as in the first example is achieved.

Although the first and second specific examples of the electric massaging machine configured according to the present invention have been described above, the present invention is not limited to these specific examples, and other mechanisms may be used in which the vibrator is reciprocated by other mechanisms. The present invention can be similarly applied to various types of electric massaging machines.

<Example> The vibration state of the vibrator was measured using an electric massaging machine in the form of the first specific example shown in FIG. The main dimensions of the massaging machine were as follows.

Outer diameter of the vibrator: 43 Inner diameter of the dragon oscillator: 41 m Outer diameter of the play child: 40 m Length of the play child: 30 In the axial direction of the play child Movement of the play child relative to the vibrator 1v [(2Il 7) ・ ・ ・ ・ 1
Amount of movement of the play child relative to the vibrator in the radial direction (2ρl)...1 Tsuru measurement was performed as follows.

First, a permanent magnet was placed on a relatively flexible sponge, and a detection coil was placed over the permanent magnet. Then, the vibrator of the friction machine was positioned within the detection coil, and then the electric motor of the massager was energized to vibrate the vibrator, and the vibrator moved the permanent magnet.

The main dimensions of the permanent magnet and detection coil used were as follows.

Permanent magnet...Magnetic flux density of a cylindrical permanent magnet with a diameter of 5 mm and a thickness of 31 mm...3000 Gauss Length of the detection coil...
-121 Inner diameter of tortoise detection coil...501 m Number of turns of detection coil...50 In the measurement, the electric motor was rotated at 400 rpm, and the vibrator was reciprocated with a stroke of 8 ms.

When a permanent magnet is moved by a vibrator, a voltage is generated in the detection coil due to the movement of the permanent magnet within the detection coil.The voltage generated in the detection coil is detected by a voltage detector, and this detected voltage is detected by a voltage detector. was further amplified and displayed on an oscilloscope. As a result, a detected waveform as shown in FIG. 5-A was obtained.

The detected waveform shown in Fig. 5-A substantially corresponds to the positional relationship of the permanent magnets. Therefore, Fig. 5-A shows that the vibrator vibrates in a complicated manner in the massaging machine of the example. ing.

<Comparative Example> For comparison, the vibration state of the vibrator was measured using a massaging machine similar to that of the example except that the play element was fixed inside the vibrator so that it could not be moved. Measurements were performed in the same manner as in the example, and the voltage generated in the detection coil was similarly displayed on an oscilloscope. As a result, a detected waveform as shown in FIG. 5-B was obtained.

FIG. 5-B shows that in the massaging machine of the comparative example, the vibrator vibrated monotonically.

[Brief explanation of the drawing]

FIG. 1 shows a first part of an electric massaging machine constructed according to the present invention.
FIG. FIG. 2 is a perspective view showing a modified example of the playback in the electric massaging machine of FIG. 1. FIG. 3 shows the second part of the electric massaging machine constructed in accordance with the present invention.
FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. Figures 5-A and 5-B show detected waveforms of the voltages obtained when using the massaging machine of the example and the voltages obtained when using the massaging machine of the comparative example, respectively, as shown on an oscilloscope. figure. 2 and 102・Old・Housing 8・・Support member 20 and 132・・・Electric motor 22・・・・
- Drive connection mechanism 36 and 106... Vibrator 44.126a and 126b - Old... Space 46 and 12
8...Player 134...Eccentric weight for vibration Fig. 2

Claims (1)

[Claims] 1. In an electric massaging machine equipped with a vibrator that is vibrated by the action of a driving source: The vibrator is provided with a space, and a playr is movably disposed within the space. An electric massaging machine characterized by: 2. The electric massaging machine according to claim 1, further comprising a support member that is reciprocated by the action of the drive source, and the vibrator is attached to one end of the support member. 3. A patent in which the vibrator is composed of a hollow cylindrical body, and the cylindrical play element is disposed within a space defined by the hollow cylindrical body so as to be movable in the axial direction of the hollow cylindrical body. An electric massaging machine according to claim 2. 4. The vibrator is vibrated by the action of a vibrating eccentric weight rotated by the drive source, Claim 1
Electric massaging machine as described in section. 5. The electric massager according to claim 4, wherein a cylindrical space is defined at one end of the vibrator, and the play piece is disposed within the space so as to be movable in the axial direction thereof. Machine. 6. Claim 1, wherein the center of gravity of the play child is eccentric from a central axis substantially parallel to the direction of movement of the play child.
The electric massaging machine according to any one of paragraphs to paragraphs 5 to 5. 7. The electric massaging machine according to claim 6, wherein the playr is provided with an eccentric weight eccentric from the central axis. 8. Claim 1 in which the play child includes a permanent magnet
The electric massaging machine according to any one of Items 7 to 7.