JPH04131233U - Electromagnetic solenoid for pounding pine surge machine - Google Patents

Abstract

(57) [Summary] [Objective] To provide an electromagnetic solenoid for a tapping massage machine that can efficiently increase the tapping force, reduce the mass of the movable core, and perform high-speed tapping operations. [Structure] An excitation coil 12 to which a pulse voltage is applied, a fixed iron core 20 disposed on the central axis of the excitation coil 12 and having an attraction surface 29 having a chevron-shaped cross section, and a striking member 3 are connected. The movable iron core 15 is provided with a recess 31 into which the suction surface 29 can be fitted, and is disposed on the central axis of the exciting coil 12 so as to be able to reciprocate.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed into an electromagnetic solenoid for tapping massage machines, which is used to treat stiff shoulders, etc. It is related to

0002

[Prior art]

Conventionally, as an electromagnetic solenoid for tapping massage machines, a pair of movable iron core and fixed iron core was used. The opposing magnetic poles faced each other in a plane perpendicular to the operating direction (for example, Japanese Patent Publication No. 14299/1983). . However, if you increase the suction force of the electromagnetic solenoid to increase the striking force, the As the power consumption increases and the temperature rise of the electromagnetic solenoid coil increases, There was a problem.

0003 On the other hand, the conventional example shown in FIG. , a protruding taper 71 is formed on the movable core 70, and a hole-like taper 7 is formed on the fixed core 72. 3 is formed. 74 is an excitation coil, 75 is a beating member, and 76 is a beaten part. (b) shows the state in which the beating member 75 is pressed against the beating part 76, and (a) shows the state in which the beating member 75 is pressed against the beating part 76. ) is a state in which a pulse voltage is applied to the excitation coil 74 and the beating operation is being performed. Ru.

0004 With this configuration, the magnetic resistance between the movable core 70 and the fixed core 72 can be reduced. , the magnetic efficiency can be improved, so the power consumption of the electromagnetic solenoid can be improved without increasing the power consumption. Can increase gravitational force.

[0005]

[Problem that the idea aims to solve]

However, since the movable core 70 becomes longer, the mass increases and it is not possible to reduce the weight. The striking force applied to the struck part cannot be increased too much, and the transient response becomes poor. There was a problem in that high-speed tapping operations were difficult because of this. Therefore, the purpose of this invention is to increase the striking force efficiently and as much as possible. Electromagnetic device for tapping massage machines that can reduce the mass of the moving iron core and enable high-speed tapping operations. is to provide a solenoid.

[0006]

[Means to solve the problem]

This invented electromagnetic solenoid for a tatami massage machine applies pulse voltage. An excitation coil and a suction surface arranged on the central axis of this excitation coil with a chevron-shaped cross section. It connects the fixed iron core and the tapping member, and has a recess into which the suction surface can fit. and a movable iron core disposed on the central axis of the excitation coil so as to be able to reciprocate freely. It is prepared.

[0007]

[Effect]

According to the configuration of this invention, a pulse voltage is applied to the excitation coil to excite the excitation coil. When magnetized, the movable core is attracted to the fixed core, and the striking member connected to the movable core is A tapping motion is performed on the area to be hit, thereby providing a tapping massage. in this case , the suction surface of the fixed core has a chevron-shaped cross section, and the movable core has a recess that can fit into the suction surface. As a result, the magnetic resistance between the movable core and the fixed core can be reduced, and the movable Iron core becomes lighter. This improves magnetic efficiency and improves the conversion efficiency into attractive force. , without increasing the power consumption of the electromagnetic solenoid. It can give you striking power. Furthermore, by reducing the mass of the movable core, , the transient response is improved, so it is possible to perform high-speed tapping faster than that performed by a masseuse. operation becomes possible.

[0008]

【Example】

An embodiment of this invention will be described based on FIGS. 1 and 2. In other words, this The Taki massage machine has an electromagnetic solenoid 1 and a head cover that covers the electromagnetic solenoid 1. -2 and a striking ball attacher connected to the electromagnetic solenoid 1 near the head cover 2. Supports the beating member 3, which is the timing, the head cover 2, and the electromagnetic solenoid 1. It is composed of a connecting spring 4 and a handle portion 5 that includes a drive circuit 28.

[0009] First, the electromagnetic solenoid 1 includes an excitation coil wound around the outer circumference of a cylindrical coil frame 11. 12 and the yoke 13 outside this excitation coil 12 are the main fixing members, and the plunger The carrier 14 includes a movable iron core 15 housed within the coil frame 11 so as to be able to freely reciprocate, and a A drive coupled to one end of the iron core 15 and inserted through the through hole 16 in the center of the yoke 13. It consists of a rod 17. It also improves the magnetic coupling between the movable iron core 15 and the yoke 13. Therefore, the collar is sandwiched and fixed between the yoke 13 and the coil frame 11, and the movable core 15 is provided with a magnetic ring 30 that slides on the center. Length of sliding part of movable iron core 15 The length is longer than the length of the magnetic ring 30, and the length of the plunger 14 of the electromagnetic solenoid 1 is greater than the length of the magnetic ring 30. The side surface of the movable iron core 15 is in contact with the entire inner surface of the magnetic ring 30 at any position. It is set.

0010 Also, between the flange 18 protruding from the side of the rear end of the movable iron core 15 and the upper surface of the yoke 13, is made of an elastic body such as rubber that absorbs the impact of the flange 18, and has a movable iron in the center hole. A soundproof elastic body 19 through which a core 15 is inserted is interposed. The fixed core 20 is cylindrical and fits into the inner peripheral edge of the through hole 16 of the yoke 13. A driving rod 17 is placed in the center of the fixed core 20. A guide bush 21 is inserted through which the plunger 14 can be moved reciprocally. It makes up the department.

[0011] In addition, the magnetic coupling between the fixed iron core 20 and the movable iron core 15 is improved, and the absorption of the electromagnetic solenoid 1 is improved. In order to increase the attractive force, the fixed iron core 20 and the movable iron core 15 of the electromagnetic solenoid 1 are opposed to each other. At this point, the suction surface 29 of the fixed core 20 has a chevron-shaped cross section, that is, a substantially circular shape in this embodiment. The movable iron core 15 is formed into a conical shape, and the movable iron core 15 has a recess 31 into which the suction surface 29 fits. In the example, it is formed into a substantially conical shape.

0012 On the other hand, two extending plate portions 22 are vertically opposed to each other from the joint portion at the center of the yoke 13. are formed integrally extending outward, and between these two extending plate portions 22 there is a A connecting member 4, which will be described later, is sandwiched therebetween. The tip of the drive rod 17 of the plunger 14 can freely come into contact with a hit area such as the shoulder or waist. A beating member 3 is fixedly provided. Also, a beating member 3 is attached to the lower end of the yoke 13. A soundproof elastic body 23 for absorbing impact sound and a return spring biasing the striking member 3. It has a spring body 24.

[0013] The connecting member 4 is a magnetic connecting member having a long and thin plate shape and having a predetermined spring constant. A connecting hole having the same positional relationship as the extension plate portion 22 of the electromagnetic solenoid 1 is bored in the hole. This tip is interposed between the extension plate parts 22 and inserted into each connecting hole. A bed 25 is inserted and connected and fixed by rivets. The handle part 5 is equipped with a power switch 26 and a power cord 27, and a drive circuit is installed inside it. A channel 28 is installed, and the other end of the connecting member 4 is connected and fixed to the front part. drive circuit 28 is connected to a commercial power supply, and is intermittent to perform a tapping operation every time a pulse voltage is applied. A pulse voltage is automatically supplied to the electromagnetic solenoid 1.

[0014] The operation of this electromagnetic solenoid 1 will be explained first. That is, power cord 2 7 to a commercial power source, hold the handle 5 in your hand, and place the beating member 3 on your shoulder or waist. When the plunger 14 comes into contact with the hit portion, the plunger 14 changes from the state shown by the solid line in Fig. 1 to the imaginary line. It slides to the position shown in Figure 2(b). Next, the power switch 26 When turned on, a pulse voltage is applied to the excitation coil 12 of the electromagnetic solenoid 1. A pulse current is supplied to the excitation coil 12, which causes the mass of the electromagnetic solenoid 1 to decrease. The movable core 15 of the plunger 14, which is small and has low inertia, is attracted to the fixed core 20, The tapping member 3 protrudes outward from the electromagnetic solenoid 1 as shown in FIG. The pushing force (pushing amount) on the hit part due to the movement is the hitting force. They join the group and perform a tapping motion. In addition, a pulse voltage is applied to the excitation coil 12. Therefore, after the pulse voltage ends, the plan is restored due to the returning force (load) of the beaten part. The roller 14 is pushed back and returned to the state before the pulse voltage was applied to the excitation coil 12. Ru. On the other hand, during the tapping operation, the reaction force of the tapping force causes the plunger 14 to The fixed part of the electromagnetic solenoid 1, which has a large mass and large inertia, is slightly It will move up and down, but in this way, apply intermittent pulse voltage to electromagnetic solenoid 1. By applying the voltage, the plunger 14 pushes the beaten part through the beating member 3. A series of tapping motions is performed by pressing the button.

[0015] In addition, the suction surface 29 of the fixed iron core 20 of the electromagnetic solenoid 1 is formed into a substantially conical shape, and is movable. By forming the concave portion 31 of the iron core 15 into a substantially conical shape, electromagnetic It is possible to improve the magnetic coupling of the lenoid 1 and increase the suction force, so that the striking part 3 is covered. It is possible to increase the amount of pressure applied to the striking part and apply a large striking force to the striking part. I can do that.

[0016] Furthermore, by making the concave portion 31 of the movable core 15 into a substantially conical shape, the movable core 15 Since the mass can be reduced, the transient response of the moving parts is improved, and the High-speed tapping motion is possible, so the masseuse can tap at a speed of approximately 600 rpm. In the same way that the massage effect is enhanced, the tapping is even more effective for the user. Approximately 1,000 massages can be provided that cannot be achieved by a human masseuse. It is possible to realize high-speed tapping motions exceeding rpm, so we can provide a new type of tapping massage. Wear.

[0017] Furthermore, a magnetic link is provided between the yoke 13 and the movable iron core 15 to improve magnetic coupling. A ring 30 is provided so that the movable core 15 is always in slidable surface contact with the magnetic ring 30. As a result, the magnetic resistance between the yoke 13 and the movable iron core 15 is reduced, and the magnetic efficiency is increased. The suction power can be further increased. In the conventional case, electromagnetic There is a limit to shortening the length of the movable core 15 without reducing the magnetic efficiency of the solenoid 1. There was also a limit to reducing the mass. In other words, the mass of the movable iron core 15 If the length of the movable core 15 is shortened in order to reduce the distance between the yoke 13 and the movable core 15, The magnetic coupling of the sliding parts deteriorated, resulting in lower efficiency and less attractive force.

[0018] In addition, since the movable core 15 is cylindrical, the suction surface 29 and concave Since the portion 31 can be easily formed and manufactured, the cost can be reduced. In addition, in this example, we used a handy massage machine that the user holds in his/her hand. However, it may also be applied to other large massage machines such as chairs and beds.

[0019]

[Effect of the idea]

This invented electromagnetic solenoid for a tapping massage machine has a cross-section of the suction surface of the fixed core. The movable core has a chevron shape and a recess that can fit into the suction surface of the movable core. The magnetic resistance between the fixed core and the fixed core can be reduced, and the weight of the movable core can be reduced. others This improves the magnetic efficiency, improves the conversion efficiency to attractive force, and reduces the power consumption of the electromagnetic solenoid. It is possible to apply sufficient hitting force to the part to be hit by the user without increasing the force. Wear. Furthermore, by reducing the mass of the moving core, transient response is improved. This has the effect of enabling high-speed tapping motions that are faster than the tapping speed performed by masseuses. There is fruit.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of one embodiment of this invention.

FIG. 2 is an explanatory diagram of its operation.

FIG. 3 is an explanatory diagram of the operation of a conventional example.

[Explanation of symbols]

3 Knocking parts 12 Excitation coil 15 Movable iron core 20 Fixed core 29 Suction surface 31 Recess

Claims (1)

[Scope of utility model registration request] [Claim 1] An excitation coil to which a pulse voltage is applied;
A fixed iron core disposed on the central axis of the excitation coil and having a suction surface having a chevron-shaped cross section is connected to a striking member, and has a recess into which the suction surface can be fitted. An electromagnetic solenoid for a tapping massage machine, which is equipped with a movable iron core that is reciprocatably arranged on a central axis.