JP5491946B2 - Roller massager - Google Patents

Description

  The present invention relates to a roller massager that performs pressure massage by pressing and rolling a roller held on a massager body on the body surface.

  2. Description of the Related Art A hand-held roller massager that performs pressure massage by pressing and rolling a roller held on a massager body on the body surface is widely known (for example, Patent Document 1). Such a roller massager can be used on the face for cosmetic purposes because it can stimulate the skin moderately or massage the muscles with a roller to improve blood circulation and recover from fatigue. There are many. Patent Document 2 discloses a roller massager in which an electric vibration device is built. In such a roller massager, it is possible to perform vibration massage simultaneously with the pressure massage by rolling while pressing the roller.

Registered Utility Model No. 3149144 Japanese Utility Model Publication No. 5-84328

  In the roller massager described in Patent Document 2, the strength of the pressure massage depends on the speed at which the user presses and rolls the roller. That is, if a user rolls a roller quickly, the effect of a press massage will become higher. However, in such a roller massager, when the roller is rolled quickly, the vibration of the roller is dispersed over a wide area of the body surface, and the effect of the vibration massage is reduced. For this reason, in the roller massager described in Patent Document 2, if the roller is rotated quickly, the strength of the vibration massage is weakened while the strength of the pressure massage is increased, and if the rotation of the roller is slowed, the strength of the vibration massage is increased. However, the strength of the pressure massage is weakened, and the pressure massage and the vibration massage cannot be performed cooperatively. In the roller massager described in Patent Document 2, the generated frequency of the vibration device can be switched with a switch at hand to solve such a problem, but it is difficult to operate the switch in accordance with the rotation of the roller. Not practical.

  This invention is made | formed in view of this present condition, and aims at provision of the roller massager which can perform a press massage and a vibration massage cooperatively.

  The present invention is a roller massager that rotatably holds a roller that is pressed and rolled on the body surface on a massager body gripped by a user, and a vibration device that generates vibrations transmitted to the roller; A vibration control device that controls the frequency of vibration generated by the vibration device; and a rotation sensor that detects a rotation speed of the roller. The vibration control device has a high rotation speed detected by the rotation sensor. The roller massager is characterized by comprising a rotation speed dependent control means for controlling the vibration frequency of the vibration device to increase. In such a configuration, the vibration device increases the vibration frequency of the roller as the roller rolls faster, so that it is possible to prevent the strength of the vibration massage from being lowered when the roller is rotated more quickly. When the rotation is slow, the strength of the vibration massage can be suppressed. For this reason, according to the roller massager of the present invention, it is possible to perform the pressure massage and the vibration massage in a coordinated manner according to the rotation speed of the roller without any special operation by the user.

  In the present invention, a configuration is proposed in which the roller has a polygonal cross section perpendicular to the rotational axis direction. In such a configuration, when the roller is pressed and rolled, the roller with a polygonal cross section rolls back and forth, so that in addition to the vibration of the vibration device, another type of vibration can be transmitted to the body surface. By synergizing the types of vibrations, more effective vibration massage can be performed. In addition, since the frequency which a polygonal roller generate | occur | produces increases / decreases according to the rotational speed of a roller, even if it rolls a roller rapidly, the massage effect by the said vibration does not fall.

  Further, in the present invention, the vibration device is formed by attaching an eccentric weight to a rotation shaft of a motor, and the vibration control device generates the vibration device by controlling a rotation speed of the motor. A configuration for controlling the vibration frequency is proposed. In such a configuration, since the rotation speed of the motor matches the generated vibration frequency of the vibration device, the generated vibration frequency of the vibration device can be easily controlled using the existing motor rotation control mechanism.

  Further, in the present invention, the vibration device includes a load sensor that detects a magnitude of a load applied to the roller when the roller is pressed and rolled, and the vibration control device detects the load sensor. It is proposed to include load-dependent control means for controlling the vibration frequency generated by the vibration device to increase as the load increases. In such a configuration, the strength of the pressure massage can be detected not only by the rotation speed of the roller but also by the magnitude of the load applied to the roller, and according to the magnitude of the load detected by the load sensor, By increasing the frequency, it is possible to coordinate the strengths of the pressure massage and the vibration massage. In such a configuration, the functions of the load dependence control means and the rotation speed dependence means may be synergistic, or one of them may be selectively functioned.

  As described above, in the present invention, as the rotation of the roller becomes faster, the vibration frequency of the roller is increased so that the user does not perform a special operation, and the pressure massage and vibration massage by the roller. Can be coordinated, and two types of massage effects can be appropriately synergized.

1 is a front view of a roller massager 1. FIG. 1 is a side view of a roller massager 1. FIG. 1 is a plan view of a roller massager 1. FIG. It is the sectional view on the AA line in FIG. 3 is a block diagram showing a control circuit of the roller massager 1. FIG. It is a chart which shows the rotational speed control aspect of the motor. (A) is sectional drawing of the roller massage device 1a of 2nd Example, (B) is an enlarged view of P part of (A). It is a graph which shows the rotational speed control aspect of the motor 18 which concerns on a 2nd Example. It is a chart which shows the modification of the rotational speed control aspect of the motor.

  Embodiments of the present invention are described according to the following examples.

<First Example>
FIG. 1 is a front view of a roller massager 1 according to the present embodiment, FIG. 2 is a right side view, and FIG. 3 is a plan view. The roller massager 1 is a bowl-shaped body including a massager body 2 held by a user and a roller 3 that is rotatably held at the tip of the massager body 2.

  The massage device body 2 is a long metal cylindrical member composed of a thick handle portion 4 on the proximal end side and a thin holding portion 5 on the distal end side, and the user holds the handle portion 4 by the user. The roller 3 is pivotally supported at the tip of the holding portion 5. The roller 3 is a long metal rod whose cross section perpendicular to the longitudinal direction forms a regular hexagonal shape, and is rotatably held at the tip of the holding portion 5 so that the longitudinal direction coincides. A mineral 9 such as germanium is embedded in the outer peripheral surface of the roller 3.

  As shown in FIG. 4, a cylindrical support shaft 8 extending in the proximal direction is integrally provided at the proximal end of the roller 3. A bearing 10 is fitted and held on the support shaft 8, and the support shaft 8 holding the bearing 10 is inserted into the hollow portion 6 of the massage device body 2 from the tip of the holding portion 5, so that the massage device It is rotatably held at the tip of the main body 2.

  Further, as shown in FIG. 4, in the hollow portion 6 of the massage device body 2, a vibration device 12 serving as a vibration source for vibrating the roller 3, a vibration control device 13 for controlling the vibration device 12, the vibration device 12 and vibration A power supply device 14 for supplying power to the control device 13 and a rotation sensor 15 for detecting the rotation speed of the roller 3 are incorporated. The handle 4 is provided with a push button type switch 16 for operating the vibration device 12 on and off.

  The vibration device 12 has an eccentric weight 19 fixed to the drive shaft of the DC motor 18, and generates vibration by the rotation of the eccentric weight 19 when the motor 18 operates. The vibration generated by the vibration device 12 is transmitted from the massage device main body 2 to the roller 3 and causes the roller massager 1 and the roller 3 to vibrate.

  The vibration control device 13 controls the rotational speed of the motor 18 of the vibration device 12, and is constituted by a substrate on which a CPU, a memory, and the like are mounted. As shown in FIG. 5, the vibration control device 13 is connected to the rotation sensor 15 and the switch 16.

  The power supply device 14 includes a rechargeable battery and a power supply circuit. As shown in FIG. 4, in the vicinity of the power supply device 14, a charging device 17 including a coil and the like for performing contactless charging of the rechargeable battery is disposed.

  The rotation sensor 15 is constituted by a rotary encoder, and detects the amount of rotation of the roller 3 per unit time. The rotation sensor 15 has a sensor body 15 a fixed to the massager body 2 and a rotation shaft 15 b fixed to the support shaft 8 of the roller 3. A pulse signal corresponding to the rotation amount of the roller 3 is sent to the vibration control device 13. Output.

  FIG. 5 shows a control circuit for controlling the operation of the vibration device 12. This control circuit includes a vibration control device 13 to which a motor 18 of the vibration device 12 is connected. The vibration control device 13 is configured by a substrate on which a CPU for performing arithmetic processing, a memory storing a program, and the like are mounted, and includes a PWM control circuit for controlling the rotation speed of the motor 18. The vibration control device 13 is connected to the rotation sensor 15, and the vibration control device 13 calculates the rotation speed of the roller 3 by counting the pulse signals output from the rotation sensor 15. The “rotation speed” is a rotation amount per unit time independent of the rotation direction. Then, the vibration control device 13 controls the rotation speed of the motor 18 by adjusting the output voltage to the motor 18 according to the calculated rotation speed of the roller 3. Note that the vibration control device 13 always rotates the motor 18 in one direction, and does not control the rotation direction of the motor 18. The vibration control device 13 is connected to the switch 16, and the vibration control device 13 switches the vibration device 12 between ON and OFF each time the switch 16 is pressed.

  FIG. 6 shows how the rotational speed of the motor 18 is controlled by the vibration control device 13. When the vibration device 12 is in the operating state (ON) and the roller 3 is not rotating at all, the vibration control device 13 controls the motor 18 to rotate at the minimum speed a1. In a state where the roller 3 is rotating, the vibration control device 13 performs control such that the higher the rotation speed of the roller 3, the higher the output voltage to the motor 18 and the higher the rotation speed of the motor 18. Specifically, as shown in FIG. 6, the vibration control device 13 increases the rotational speed of the motor 18 until it reaches the maximum speed a <b> 2 in proportion to the rotational speed of the roller 3. In the present embodiment, the vibration of the vibration device 12 according to the present invention is caused by the rotation of the eccentric weight 19, and therefore the vibration frequency of the vibration generated by the vibration device 12 is the same as the rotation number of the motor 18 per unit time. is there.

  According to the above configuration, when the user holds the roller massager 1 and presses the switch 16, the vibration device 12 is activated (ON) and the roller 3 vibrates. Then, by pressing and rolling the roller 3 on the body surface in such a state, it is possible to simultaneously perform a pressure massage due to the pressure rolling of the roller 3 and a vibration massage due to the vibration of the roller 3.

  In the roller massager 1 of the present embodiment, the faster the roller 3 rotates, the faster the motor 18 rotates and the frequency of the roller 3 increases. Therefore, when the roller 3 is accelerated, the strength of the vibration massage decreases. do not do. For this reason, in this roller massage device 1, the synergistic effect of two types of massage can be obtained by coordinating the pressure massage and the vibration massage.

  In particular, in this embodiment, since the cross section perpendicular to the rotation axis direction of the roller 3 is a regular polygonal shape, the roller 3 does not roll smoothly on the body surface but rolls loosely. For this reason, when the roller 3 is pressed and rolled on the body surface, not only the vibration using the vibration device 12 as a vibration source is transmitted to the body surface, but also the vibration generated by the rolling of the regular polygonal roller 3 is also detected on the body surface. It will be transmitted to. Therefore, in such a configuration, there is an advantage that muscle stiffness can be effectively loosened by simultaneously applying two types of vibrations having different frequencies and amplitudes to the body surface.

<Second Example>
The roller massager 1a of the present embodiment is a part of the configuration of the roller massager 1 of the first embodiment, and the motor 18 depends on not only the rotation speed of the roller 3 but also the magnitude of the load applied to the roller 3. The rotation speed is increased. Specifically, as shown in FIG. 7, in this embodiment, a cylindrical shape is provided between the inner peripheral surface of the hollow portion 6 of the massage device body 2 and a bearing 10 that is fitted around the support shaft 8 of the roller 3. The elastic material 21a is disposed, and when a load in a direction orthogonal to the rotation axis is applied to the roller 3, the support shaft 8 contracts the elastic material 21a, so that the roller 3 is moved relative to the massage device body 2. Configured to tilt slightly. Further, an elastic material 21 b is also disposed between the sensor body 15 a of the rotation sensor 15 and the inner peripheral surface of the hollow portion 6, so that the rotation sensor 15 can be slightly tilted together with the roller 3.

  A load sensor 20 is disposed at the tip of the inner peripheral surface of the hollow portion 6. The load sensor 20 is in contact with the bearing 10 and detects the inclination of the roller 3 and the bearing 10 with respect to the massage device body 2. That is, in such a configuration, the load sensor 20 detects the inclination of the roller 3 because the elastic material 21a contracts and the inclination of the roller 3 increases as a larger load is applied to the roller 3 in the direction orthogonal to the rotation axis. By doing so, the magnitude of the load applied to the roller 3 is indirectly detected. The load sensor 20 transmits a detection signal corresponding to the magnitude of the inclination (load) to the vibration control device 13.

  FIG. 8 shows how the rotational speed of the motor 18 is controlled by the vibration control device 13 according to this embodiment. The vibration control device 13 of the present embodiment adjusts the output voltage to the motor 18 so that the rotation speed of the motor 18 increases as the rotation speed detected by the rotation sensor 15 increases, as shown in FIG. Control is further performed so that the rotation speed of the motor 18 increases as the load detected by the load sensor 20 increases. Then, when the rotational speed of the motor 18 reaches the maximum speed a2, control is performed so that the rotational speed of the motor 18 is not increased further.

  Thus, in the present embodiment, the vibration control device 13 controls the motor 18 to rotate faster as the load applied to the roller 3 increases. When the roller 3 is pressed and rolled, the load applied in the direction orthogonal to the rotation axis is proportional to the force pressing the body surface and is proportional to the strength of the pressure massage. For this reason, in this embodiment, by increasing the frequency of the vibration device 12 in accordance with not only the rotation speed of the roller 3 but also the load applied to the roller 3, the strength of the vibration massage and the pressure massage can be further increased. It can be closely coordinated.

  The roller massager 1 according to the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the gist of the present invention.

  For example, the control content of the vibration device according to the present invention is not limited to the configuration of the above-described embodiment, and can be variously changed. The figure shows a modification in which the control content of the motor 18 according to the embodiment is changed. As shown in FIG. 9A, the vibration control device according to the present invention may not vibrate the vibration device when the roller is not rotating or when the rotation speed is low. Further, the vibration control device does not need to increase the rotation speed of the motor at a constant rate with respect to the increase in the rotation speed of the roller, and as shown in FIGS. 9 (B) to 9 (D), In response to the increase, the rotational speed of the motor may be increased at an acceleration, the increase rate may be gradually decreased, or the increase rate may be increased step by step.

  In the first embodiment, the vibration control device 13 always controls the rotation speed of the motor 18 in the control mode shown in FIG. 6, but the vibration control device according to the present invention is different in the control mode of the vibration device. Multiple control modes can be provided. In the present invention, when the vibration control device has a plurality of control modes, a control mode in which the vibration frequency of the vibration device is increased in accordance with an increase in the rotation speed of the roller is realized in at least one control mode. That's fine. Specifically, in the first control mode, the motor is controlled to rotate at a constant rotational speed, and in the second control mode, the frequency of the vibration device is increased in accordance with an increase in the rotational speed of the roller. In the third control mode, the vibration frequency of the vibration device may be controlled to increase in accordance with an increase in the load applied to the roller.

  In addition, the vibration device according to the present invention is not limited to a motor and an eccentric weight as in the embodiment, and for example, a vibration generation device using a magnet and a coil may be used.

  In addition, the configuration of the massage device body and the roller according to the present invention is not limited to the configuration of the embodiment, and for example, a plurality of rollers may be provided on the massage device body as in Patent Document 1 described above. You may hold | maintain so that it may orthogonally cross with the elongate direction of a massage device main body. Further, as in Patent Document 2, a vibration device (motor) may be housed inside the roller, and a rotation sensor may be housed inside the roller.

  In the above embodiment, the vibration control device 13 controls the rotation speed of the motor 18 by the PWM control circuit. However, instead of the PWM control circuit, the vibration control apparatus 13 controls the rotation speed of the motor using a variable resistor or the like. It may be.

  In the above embodiment, the rotary encoder is used as the rotation sensor. However, the rotation sensor according to the present invention is not limited to the rotary encoder, and, for example, a tachometer can be adopted. When a tachometer is used, the circuit configuration of the vibration control device can be simplified.

DESCRIPTION OF SYMBOLS 1,1a Roller massage device 2 Massage device main body 3 Roller 4 Handle portion 5 Holding portion 6 Hollow portion 8 Support shaft 10 Bearing 12 Vibration device 13 Vibration control device 15 Rotation sensor 18 Motor 19 Eccentric weight 20 Load sensor

Claims (4)

A roller massager that holds a roller that is pressed and rolled on the body surface on a massager body gripped by a user,
A vibration device for generating vibration to be transmitted to the roller;
A vibration control device for controlling the frequency of vibration generated by the vibration device;
A rotation sensor for detecting the rotation speed of the roller,
The vibration control device includes a rotation speed dependent control unit that controls the vibration frequency generated by the vibration device to increase as the rotation speed detected by the rotation sensor increases.   The roller massager according to claim 1, wherein the roller has a polygonal cross section perpendicular to the rotation axis direction.   The vibration device is formed by attaching an eccentric weight to a rotation shaft of a motor, and the vibration control device controls the number of vibrations generated by the vibration device by controlling the rotation speed of the motor. The roller massager according to claim 1 or 2, characterized by. The vibration device includes a load sensor that detects a magnitude of a load applied to the roller when the roller is pressed and rolled.
The said vibration control apparatus is provided with the load dependence control means which controls so that the frequency of the vibration which the said vibration apparatus produces becomes large, so that the load which the said load sensor detects is large. 4. The roller massager according to any one of 3 above.

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