JPH1085290A - Massaging equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the assembling work by arranging a compression coil spring in the space part on the front side and rear side of a driving unit, protrusively providing a locking pin on the rear side of the driving unit, and slidingly engaging it with the U-shaped groove of a lift arm. SOLUTION: When a motor 6 within a driving unit 2 is rotated, an end surface cam 16 is rotated, and an attachment 3 is reciprocated through a lift arm 11 engaged with the end surface of the end surface cam 16 and an attachment shaft 7. The end surface of the end surface cam 16 is constituted in such a manner that the axial height is gradually increased according to the position of rotating angle, and suddenly reduced in a specified rotating angle position, and a compression coil spring 13 which is an energy accumulating means is compressed, and the accumulated energy is instantaneously released and transmitted to a pressing element. A locking pin 12 is protrusively provided on the rear surface side of the driving unit 2 and slidingly engaged with the U-shaped groove of the lift arm 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massager, and more particularly to a massager which repetitively reciprocates a plurality of attachments in order and uses softness to repeatedly hit the skin surface using the elasticity of a spring. The present invention relates to a configured handheld massager.

[0002]

2. Description of the Related Art Conventionally, for beauty and health, a massager that stimulates the skin and muscles by repeatedly flicking the skin surface has been known. The above-mentioned conventional massager is configured to reciprocally drive one attachment that repeatedly flicks and hits the skin surface, and to release the energy accumulated in an elastic body such as a spring constituting the attachment at a stroke. Therefore, if the massage device is not moved, not only will one massage continuously, but also there is a limit in shortening the period of the repelling and tapping.

[0003] In order to solve the above problem, it is conceivable to provide a plurality of attachments. However, in the above-mentioned conventional type, since an independent drive unit is provided for each attachment, the massage device itself is provided. However, there is a problem that the size becomes large and handling becomes complicated. Further, in a conventional massage device, since the energy accumulated in an elastic body such as a spring is released at a stroke, for example, when a subcutaneous muscle layer such as a head is massaged in a thin portion, However, there is a problem that the strength of the flipping is too strong, which may cause discomfort.

In order to solve the above-mentioned problems, the present applicant drives a plurality of attachments by a single drive unit to widen a massage range and to massage the skin surface while softly hitting the skin surface. A proposal was made for a compact hand-held massager that could perform a massage (see Japanese Patent No. 1,745,268 and US Pat. No. 5,088,474).

FIGS. 10 and 11 are a cross-sectional side view and a front view of a main portion showing an embodiment of the improved invention. FIG.
11, reference numeral 1 denotes a housing, which accommodates the drive unit 2 and the attachment 3 driven by the drive unit 2. Reference numeral 4 denotes an attachment spacer, which is formed in a hollow cylindrical shape and is detachably attached to the housing 1. Reference numeral 5 denotes a switch, which is provided on the housing 1 and controls driving and stopping of a motor 6 constituting the driving unit 2.

Next, the attachment 3 penetrates the drive unit 2 back and forth, and is formed to be reciprocally movable.
A shaft 7, a connecting portion 8, a buffering portion 9 and a pressing portion 10 which are sequentially provided at a tip portion of the attachment shaft 7
And a lift arm 11 fixed to the rear end of the attachment shaft 7. The three attachments 3 are arranged on a concentric circle at equal intervals in the circumferential direction.

Reference numeral 12 denotes a rotation stop pin, which protrudes from the front surface of the drive unit 2 and prevents the rotation of the attachment 3 by slidingly engaging with the hole 8a of the connecting portion 8. Reference numeral 13 denotes a compression coil spring, which is inserted into the attachment shaft 7 in a spring accommodating portion 14 provided in the drive unit 2 and fixed by a fixing pin 15 provided on the attachment shaft 7.

Reference numeral 16 denotes a cylindrical end cam which is fixed to a main shaft 17 which is an output shaft of the drive unit 2 so as to rotate. The end cam 16 and the lift arm 11 are connected to each other. The attachment 3 is configured to be sequentially driven by sliding engagement. That is, the length of the end face cam 16 in the axial direction from the plane perpendicular to the axis to the end face is such that the reciprocating movement position of the three attachments 3 is sequentially changed corresponding to the rotation angle position. It is formed so as to change corresponding to the angular position.

With the above configuration, when the motor 6 of the drive unit 2 is driven by turning on the switch 5, the rotation of the motor 6 is transmitted to the main shaft 17 via a gear reduction mechanism (not shown) in the drive unit 2. The rotation is transmitted, and the end cam 16 is rotated. Therefore, the attachment shaft 7 reciprocates in the axial direction via the lift arm 11 slidably engaged with the end face of the end cam 16, and the attachment 3 can be driven to reciprocate. In FIG. 10, the upper attachment 3 is shown in the most advanced state, and the lower attachment 3 is shown in the retracted state.

In this case, the pressing portion 10 provided at the distal end of the attachment 3 is configured to slightly protrude from the end face of the attachment spacer 4, and the three attachments 3 are driven by the drive unit 2. The massage is performed by being sequentially driven and the pressing unit 10 repeatedly pressing the skin surface sequentially.

The reciprocating strokes of the three attachments 3 are uniform, and the massage is performed with the end faces of the attachment spacers 4 in contact with the skin surface. Are uniform. That is, since the length of the protrusion of the pressing portion 10 from the attachment spacer 4 is always constant, the massage is performed under the condition that the end surface of the attachment spacer 4 is in contact with the skin surface. The pressing force on the skin surface by the part 10 becomes uniform.

[0012]

According to the above-mentioned improved invention, the massage area can be widened and the skin surface can be massaged softly.
It has been found that there are some problems.

First, the compression coil spring 13 serving as energy storage means is inserted into the attachment shaft 7 in the spring accommodating portion 14 provided in the drive unit 2 and is fixed by the fixing pin 15.
There is a problem that the assembly work is complicated. In other words,
At the time of the assembling work, the attachment shaft 7 is first placed in a state where the compression coil spring 13 is temporarily placed in the spring accommodating portion 14.
However, since the compression coil spring 13 moves freely in the spring accommodating portion 14, the insertion of the attachment shaft 7 becomes extremely complicated.

Next, in order to prevent the rotation of the attachment 3, a rotation stop pin 12 is projected from the front surface of the drive unit 2, and the rotation stop pin 12 is provided with a hole 8 a of the connecting portion 8 constituting the attachment 3. In this case, since the attachment and the combination of the attachment shaft 7 and the compression coil spring 13 are performed at the same time, the work for simultaneous engagement of the two is further complicated.

Further, the shape of the end face of the end face cam 16 for reciprocatingly driving the attachment 3 is designed so that the stored energy can be released instantaneously from the most retracted position against the elastic force of the compression coil spring 13. When the lift arm 11 is advanced to the advanced position, the lift arm 11 collides with the end face cam 16 to generate a high mechanical sound. Therefore, an inclined surface is formed to prevent this. However, such a configuration has a problem that a part of the stored energy is lost, and the energy transmitted to the pressing portion 10 is reduced.

An object of the present invention is to solve the problems existing in the above-mentioned improved invention, and to provide a massager which can easily assemble and effectively utilize the stored energy.

[0017]

In order to solve the above-mentioned problems, according to the present invention, there is provided an attachment for pressing a skin surface, a drive unit for reciprocally driving the attachment,
Energy storage means comprising a spring elastic body which is pressed by the drive of the attachment to store energy, and an attachment spacer which secures a reciprocating movement range of the attachment, wherein the energy storage means is capable of storing energy during the backward drive of the attachment. And a massaging device configured to release energy when the attachment is driven forward, wherein a plurality of the attachments are provided, and the plurality of attachments are respectively provided by penetrating the drive unit back and forth. Independent energy storage means in front of the drive unit and independent buffer means behind the drive unit, the energy storage means and the buffer means being formed by a compression coil spring, and being provided after the energy storage means. Connect the end to the drive unit. A plurality of attachments fitted to a collar portion formed integrally with the attachment and coaxial with the attachment, engaged with a lift arm fixed to a rear end of each of the plurality of attachments, and reciprocating the plurality of attachments. A cylindrical end face formed so that the length in the axial direction from a plane perpendicular to the axis to the end face changes in accordance with the rotation angle position so that the movement position is sequentially changed in accordance with the rotation angle position. A cam, and a rotation stop pin for preventing rotation of the plurality of attachments and slidingly engaging the lift arm is provided on a rear surface side of the drive unit. The technical means of sequentially driving the plurality of attachments through rotation is adopted.

[0018]

1 and 2 are a side view and a front view, respectively, showing an embodiment of the present invention. The same parts are designated by the same reference numerals as in FIGS. 10 and 11. In FIG. 1, a drive unit 2 and three attachments 3 driven by the drive unit 2 are accommodated in a housing 1. The pressing portion 10 provided at the tip of the attachment 3 is configured to slightly protrude from the end face of the attachment / spacer 4 in a state where the attachment 3 has advanced most.

Next, FIGS. 3 to 5 are side views showing the drive unit 2 and the attachment 3 in FIG. 1, respectively.
FIG. 6 is a longitudinal sectional enlarged view of a main part showing a driving unit of the driving unit 2, and FIGS. 7 to 9 are exploded perspective views of components of the driving unit 2 and the attachment 3, respectively.

In these figures, the attachment 3
Attachment shaft 7, which is formed so as to be able to reciprocate by penetrating the drive unit 2 back and forth, a pressing portion 10 provided at the tip of the attachment shaft 7, and two spring collars 21 and a stop on the attachment shaft 7.・
The compression coil spring 13 inserted through the ring 22 and the rear end of the attachment shaft 7
A lift arm 11 fixed via a ring 22, and a compression coil spring 25 inserted between the lift arm 11 and the rear surface of the drive unit 2 via a spring collar 23 and a lift arm cushion 24. Be composed.
The compression coil springs 13 and 25 constitute energy storage means and buffer means, respectively.

Next, the detent pin 12 is provided on the rear side of the drive unit 2 so as to protrude in parallel with the attachment shaft 7, and through a U-shaped groove 26 provided in the lift arm 11, the lift arm 11 is rotated. Are configured to engage with each other. Reference numeral 27 denotes a pressing element, which is formed in a disc shape having a plurality of small projections 28 from a flexible elastic material, and is detachably provided at the front end of the pressing section 10.

Next, a main cushion member 29 and three sub cushion members 30 are provided on the front side of the drive unit 2, and three sub cushion members 30 are provided on the rear side. These cushion members 29 and 30 are formed in a columnar shape with a brim from a flexible elastic material such as rubber, and are provided detachably through mounting holes.

Reference numerals 2a and 2b denote a front gear case and a rear gear case, respectively, which are combined by a set screw 31 to house the motor 6 and the gear reduction mechanism.
The gear reduction mechanism includes a pinion 33 provided on an output shaft 32 of the motor 6, a crown gear 35 provided on a crown gear shaft 34, and a pinion 3 integrated therewith.
6. The main gear provided on the main gear shaft 37
It is constituted by a gear 38. That is, the rotation of the output shaft 32 of the motor 6 is transmitted to the main shaft 17 formed integrally with the main gear 38 by meshing the pinion 33 with the crown gear 35 and the pinion 36 with the main gear 38. It is.

Next, the end cam 16 engages with the lift arm 11 and changes the reciprocating position of the three attachments 3 sequentially from the plane perpendicular to the axis so as to correspond to the rotation angle position. The length (height) in the axial direction up to the end face 39 is formed so as to change corresponding to the rotation angle position, and is integrally fixed to the main shaft 17.

With the above configuration, when the motor 6 in the drive unit 2 is rotated, the rotation of the motor 6 is rotated via the gear reduction mechanism, and the end cam 16 is rotated via the main gear 38. Therefore, the attachment 3 can be reciprocated via the lift arm 11 engaged with the end face 39 of the end cam 16 and the attachment shaft 7. In this case, the presser 27 at the tip of the attachment 3 is configured so as to slightly protrude from the end face of the attachment spacer 4 in its most advanced state. The massage is performed by being driven and the pressing element 27 repeatedly pressing the skin surface sequentially. Note that the above 3
Since the reciprocating stroke of each of the attachments 3 is uniform, and the length of the presser 27 protruding from the attachment spacer 4 is always constant, massage is performed with the end face of the attachment spacer 4 in contact with the skin surface. If you do
The pressing force of the pressing element 27 against the skin surface becomes uniform.

In the present invention, the end face 39 of the end face cam 16 is used.
As shown in FIG. 9, the height in the axial direction gradually increases corresponding to the position of the rotation angle, and rapidly decreases at a specific rotation angle position. With this configuration, the compression coil spring 13 as the energy storage means can be compressed and the stored energy can be instantaneously released and transmitted to the presser 27.

However, when the energy is released, the lift arm 11 comes into contact with the bottom plate of the end cam 16 to generate a high mechanical sound. To prevent this, a buffer means is provided at the rear end of the attachment 3. It is being done.
That is, the compression coil spring 25 and the lift arm
With the cushion 24, it is possible to alleviate the impact caused by the sudden movement of the lift arm 11 in the axial direction.

Next, in the present invention, spring collars 21 are provided at both axial ends of the compression coil spring 13 constituting the energy storage means in order to maintain coaxiality with the attachment shaft 7. Of these, the spring collar 21 on the front gear case 2a side is
The collar part can be formed integrally with the gear case 2a. The spring collar 21 on the pressing portion 10 can also be formed integrally with the pressing portion 10 so that the stop ring 22 can be omitted. By forming in this way, the number of components can be reduced and the assembling work can be facilitated.

[0029]

Since the present invention has the configuration and operation as described above, the following effects can be obtained.

(1) Since the compression coil springs constituting the energy storage means and the buffer means are provided in the spaces on the front side and the rear side of the drive unit, respectively, the assembling work is facilitated.

(2) An anti-rotation pin for preventing rotation of the attachment is protrudingly provided on the rear side of the drive unit.
The structure in which the arm is slidably engaged with the U-shaped groove provided in the arm facilitates the assembling work.

(3) By instantaneously releasing the energy stored in the energy storage means, not only can the stored energy be effectively used, but also the shock accompanying the instantaneous release of the stored energy is absorbed by the buffer means. This makes it possible to prevent generation of unpleasant high mechanical sounds.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a front view showing the embodiment of the present invention.

FIG. 3 is a side view showing the drive unit 2 and the attachment 3 in FIG.

FIG. 4 is a front view showing the drive unit 2 and the attachment 3 in FIG.

FIG. 5 is a rear view showing the drive unit 2 and the attachment 3 in FIG.

FIG. 6 is an enlarged longitudinal sectional view of a main part showing a driving unit of the driving unit 2.

7 is an exploded perspective view of components of the drive unit 2 and the attachment 3. FIG.

8 is an exploded perspective view of components of the drive unit 2 and the attachment 3. FIG.

9 is an exploded perspective view of components of the drive unit 2 and the attachment 3. FIG.

FIG. 10 is a cross-sectional side view of a main part showing an embodiment in the improved invention.

FIG. 11 is a front view showing an embodiment in the improved invention.

[Explanation of symbols]

 2 Drive unit 3 Attachment 4 Attachment spacer 11 Lift arm 12 Detent pin 13, 25 Compression coil spring 16 End face cam

Claims (1)

[Claims] Attachment for pressing the skin surface, a drive unit for reciprocatingly driving this attachment, energy storage means comprising a spring elastic body which is pressed by the driving of the attachment to store energy, and a reciprocating movement range of the attachment. A massager comprising an attachment spacer for securing, wherein the energy accumulating means is configured to accumulate energy when the attachment is driven backward and to release energy when the attachment is driven forward. The plurality of attachments are provided so as to penetrate the drive unit back and forth, and have independent energy storage means in front of the drive unit, and independent buffer means behind the drive unit. , Energy storage means And a buffer means formed by a compression coil spring, and a rear end of the energy storage means is fitted to a collar portion formed integrally with the drive unit and coaxially with the attachment, and each of the plurality of attachments is provided. In the axial direction from the plane perpendicular to the axis to the end face so as to engage with the lift arm fixed to the rear end and to sequentially change the reciprocating position of the plurality of attachments in accordance with the rotation angle position. A cylindrical end face cam formed so that a length changes corresponding to the rotation angle position; a rear surface of the drive unit for preventing rotation of the plurality of attachments; A rotation stop pin with which an arm is slidably engaged is provided, and the drive unit sequentially drives the plurality of attachments through rotation of the end face cam. Massage device characterized by the following.