JPH0513432U - Electromagnetic Solenoid for Tataki Matsu Surge Machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an electromagnetic solenoid for a beating massage machine that can reduce the mass of the plunger without increasing the power consumption and reducing the magnetic efficiency. A plunger 15 to which a proximal end portion of a drive rod 17 to which a tapping member 2 is attached is connected, a fixed iron core 20 having a through hole 34 through which the drive rod 17 penetrates, a plunger 15 and a fixed iron core 20 are surrounded. Is provided with an exciting coil 12 for attracting the plunger 15 to the fixed iron core 20 by applying a pulse voltage to the fixed iron core 20, and a hole portion 50 for weight reduction is provided on an end face of the plunger 15 opposite to the drive rod 17. I am trying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electromagnetic solenoid of a beating massage machine applied to a health device for eliminating stiff shoulders and the like.

[0002]

[Prior Art]

 A conventional example is shown in FIG. That is, the electromagnetic solenoid of this tapping massage machine includes a plunger 72 to which a proximal end portion of a drive rod 71 to which a tapping member 70 is attached is connected, a fixed iron core 74 having a through hole 73 through which the drive rod 71 penetrates, An exciting coil 75 is provided so as to surround the plunger 72 and the fixed iron core 74 and apply a pulse voltage to attract the plunger 72 to the fixed iron core 74.

[0003]

[Problems to be solved by the device]

 The minimum length of the plunger 72 is determined in consideration of the magnetic efficiency at the time of excitation by the excitation coil 75, and the minimum mass is also determined by this, so applying a pulse voltage to the excitation coil 75. In some cases, it is not possible to achieve a desired tapping speed, for example, a tapping operation of about 600 rpm or more that a masseur can achieve. In this case, it is possible to increase the suction force, but the power consumption increases.

Therefore, an object of the present invention is to provide an electromagnetic solenoid for a beating massage machine that can reduce the mass of the plunger without increasing the power consumption and reducing the magnetic efficiency.

[0005]

[Means for Solving the Problems]

 The electromagnetic solenoid of the tapping massage machine of the present invention comprises a plunger having a tapping member attached to the tip thereof and a proximal end portion of a drive rod connected thereto, a fixed iron core having a through hole through which the drive rod penetrates, the plunger and the fixed portion. An exciting coil that surrounds the iron core and applies a pulse voltage to attract the plunger to the fixed iron core, and a hole for weight reduction is provided on the end surface of the plunger opposite to the drive rod. It is characterized by.

[0006]

[Action]

 According to the configuration of the present invention, when a pulse voltage is applied to the exciting coil, the plunger is attracted to the fixed iron core for each pulse voltage, and the force causes the knocking member to project and the knocking force to be applied to the hitting part. Massage is performed. In this case, since the hole for reducing the weight is provided on the side opposite to the drive rod of the plunger, the weight can be reduced without shortening the plunger, and the transient response is improved, so that high-speed response is possible. Moreover, since the length of the plunger does not change, the magnetic efficiency does not decrease, and therefore the tapping force can be increased without increasing the power consumption. Further, since the surface area of the plunger is increased by the hole, the heat radiation effect is increased and the temperature rise of the plunger can be suppressed.

[0007]

【Example】

 A tapping massage machine to which an embodiment of the present invention is applied will be described with reference to FIGS. 1 to 4. As shown in FIG. 2, this tapping massage machine includes an electromagnetic solenoid 1, a head cover 2 that covers the electromagnetic solenoid 1, and a beating ball mechanically connected to the electromagnetic solenoid 1 in the vicinity of the head cover 2. It is composed of a tapping member 3, a connecting spring 4 that supports the head cover 2 and the electromagnetic solenoid 1, and a grip portion 5 that incorporates a drive circuit 28.

As shown in FIG. 1, the electromagnetic solenoid 1 has an exciting coil 12 wound around the outer circumference of a cylindrical coil frame 11 and a yoke 13 outside the exciting coil 12 as main fixing members. .. Further, the flange 31 of the magnetic ring 30 inserted into one end of the hollow portion of the coil frame 11 is sandwiched between one end of the yoke 13 and the coil frame 11 to form a through hole 34, and the cylindrical fixed iron core 20. Is attached to the inner peripheral edge of the through hole 16 at the other end of the yoke 13 and is installed at the other end of the hollow portion of the coil frame 11, and the guide bush 21 is provided in the through hole 34. ..

On the other hand, the movable part 14 is housed in the coil frame 11 and is reciprocally supported by the magnetic ring 30. The movable part 14 is fixed to the inner end of the plunger 15 and slidably penetrates the guide bush 21. It is composed of the drive rod 17. The length of the plunger 15 is longer than the length of the magnetic ring 30 in order to improve the magnetic coupling, and the dimension is set so that the side surface of the plunger 15 contacts the entire inner surface of the magnetic ring 30 at any position of the plunger 15. Has been done.

A flange portion 18 for a stopper is formed at an outer end portion of the plunger 15 opposite to the drive rod 17, and the impact of the flange portion 18 is absorbed between the flange portion 18 and the end surface of the yoke 13. The elastic body 19 is made of rubber like rubber, and the soundproof elastic body 19 having the plunger 15 inserted through the center hole is interposed. Further, a hole 50 for reducing the weight is provided at the outer end of the plunger 15. As shown in FIG. 3, the shape of the hole portion 50 is composed of a substantially cylindrical portion 56 and a conical portion 57 which is continuous with the rear end portion of the substantially cylindrical portion 56. The depth of the substantially cylindrical portion 51 is set so as to become the substantially cylindrical portion 56 up to the vicinity of the magnetic ring 30 so as not to disturb the main magnetic path of the coil magnetic flux Φ when the plunger 15 is attracted in the state of FIG. Further, from that point onward, a conical portion 53 having a triangular cross-section with an apex angle of about 60 degrees is formed. Further, the thickness 55 of the collar portion 18 is set so as to withstand the impact on the soundproof elastic body 19 during the suction operation of the plunger 15, but the diameter 52 of the substantially cylindrical portion 56 is the remaining thickness 54 of the plunger 15. Are dimensioned to be approximately the same as the thickness 55.

Further, two extending plate portions 22 facing each other in the vertical direction are integrally formed to extend outward from the joining portion in the central portion of the yoke 13 so as to extend outward. A connecting member 4 described later is sandwiched between the portions 22. A tapping member 3 is fixed to the tip of the drive rod 17 of the plunger 15 so as to be able to come into contact with a hitting portion such as a shoulder or a waist.

Further, the lower end of the yoke 13 has a soundproof elastic body 23 for absorbing the impact sound of the tapping member 3, and a coil shape for spring-biasing the tapping member 3 in a direction projecting from the lower end of the yoke 13. The return spring body 24 of FIG. Further, the connecting member 4 is fixed to the yoke 13. The connecting member 4 is an elongated plate-like magnetic body having a predetermined spring constant, and its tip is similar to the extending plate portion 22 of the electromagnetic solenoid 1. Mounting holes and connecting holes having various positional relationships are formed. The tip portion is inserted between both extension plate portions 22 and rivets 25 are inserted into the respective connecting holes, and are sandwiched and connected by rivet connection. It is fixed.

The handle 5 is provided with a switch 26 and a power cord 27, in which a drive circuit 28 which is connected to a commercial power source and supplies intermittent pulse voltage to the electromagnetic solenoid 1 is installed. The other end of the connecting member 4 is connected and fixed to the portion. The operation will be described. First, when the power cord 27 is connected to a commercial power source, the grip portion 5 is held in the hand, and the tapping member 3 is brought into contact with a hitting portion such as a shoulder or waist, the plunger 15 of FIG. It slides from the state shown by the solid line to the position shown in FIG. When the switch 26 is turned on, a pulse voltage is applied to the exciting coil 12 of the electromagnetic solenoid 1 and a pulse current is supplied to the exciting coil 12 to be excited, and the plunger 15 of the electromagnetic solenoid 1 is attracted to reduce the mass. The plunger 15 having a small inertia pushes the hitting portion with the hitting member 3, and the pushing force (pushing amount) is applied to the hitting portion as the hitting force, and the hitting operation is performed. Further, since the pulse voltage is applied to the exciting coil 12, the plunger 15 is pushed back by the returning force (load) of the hit part after the pulse voltage is completed, and the state before the pulse voltage is applied to the exciting coil 12 is restored. .. On the other hand, during the tapping operation, the fixed portion of the electromagnetic solenoid 1 having a large mass and a large inertia with respect to the plunger 15 moves up and down a little with respect to the hit portion due to the reaction force of the tapping force, but in this way, it is intermittent. By applying a different pulse voltage to the exciting coil 12 of the electromagnetic solenoid 1, the plunger 15 pushes the hitting portion through the hitting member 3 to perform a series of hitting operations.

According to this embodiment, when a pulse voltage is applied to the exciting coil 12, the plunger 15 is attracted to the fixed iron core 20 for each pulse voltage, and the force causes the knocking member 3 to project and hit the knocked part. Is added and a tapping massage is performed. In this case, since the hole 50 for weight reduction is provided on the side of the plunger 15 opposite to the drive rod 17, the weight can be reduced without shortening the plunger 15 and the transient response is improved, so that high speed response is possible. For example, since a high-speed tapping motion of 600 rpm or more can be performed, a massaging teacher can provide a tapping massage that is more effective for the user in the same way that a massaging teacher can enhance the tapping massage effect by a high-speed tapping motion of approximately 600 rpm. It is possible to provide a new tapping massage because a high-speed tapping operation that cannot be realized by a masseuse, for example, 1,000 rpm or more can be realized.

Moreover, since the length of the plunger 15 does not change, the magnetic efficiency does not decrease, the conversion efficiency to the displacement of the movable part can be improved, and the tapping force can be increased without increasing the power consumption. Therefore, the amount of pushing of the movable portion 14 into the hit portion can be increased, so that a large hitting force can be applied to the hit portion. Further, since the surface area of the plunger 15 is increased by the hole 50, the heat radiation effect is increased and the temperature rise of the plunger 15 can be suppressed.

In this embodiment, the hand-held massager is used for the user to hold, but may be applied to other large-sized massagers such as chairs and beds.

[0017]

[Effect of the device]

 According to the electromagnetic solenoid of the tapping massage machine of the present invention, since the hole for reducing the weight is provided on the side opposite to the drive rod of the plunger, the weight can be reduced without shortening the plunger, and the transient response is improved, resulting in high-speed response. It will be possible. Moreover, since the length of the plunger does not change, the magnetic efficiency does not decrease, and therefore the tapping force can be increased without increasing the power consumption. Furthermore, the surface area of the plunger is increased by the hole, so that the heat radiation effect is increased and the temperature rise of the plunger can be suppressed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a non-excited state of an electromagnetic solenoid of a beating massage machine according to an embodiment of the present invention.

FIG. 2 is a sectional view of a beating massage machine.

FIG. 3 is a partially enlarged sectional view of an electromagnetic solenoid.

FIG. 4 is a cross-sectional view of an excited state of an electromagnetic solenoid.

FIG. 5 is a cross-sectional view of an electromagnetic solenoid of a conventional tapping massage machine.

[Explanation of symbols]

 3 Tapping member 12 Excitation coil 15 Plunger 17 Drive rod 20 Fixed iron core 34 Through hole 50 Hole

Claims (1)

[Scope of utility model registration request] 1. A pulse voltage that surrounds the plunger and the fixed iron core, a plunger having a base end portion of a drive rod to which a tapping member is attached to the tip end connected thereto, a fixed iron core having a through hole through which the drive rod penetrates, and a pulse voltage. And a magnetizing coil for attracting the plunger to the fixed iron core by applying a force to the fixed iron core, and a hole for weight reduction is provided on an end surface of the plunger opposite to the drive rod. Electromagnetic solenoid.