Piston finger pressure device for spinal massage

Abstract

This invention relates to a piston acupressure device for spinal massage. The piston, which rises and falls by the expansion and contraction of an air bag, is securely supported by upper and lower structures to ensure stable lifting and lowering without wobbling. This allows for precise acupressure application and prevents the piston from moving in the direction of travel during lifting and lowering. This prevents damage, noise, and vibration caused by friction due to piston imbalance, thereby increasing product durability and ensuring operational reliability.

Description

TECHNICAL FIELD

[0001] The present invention relates to a piston finger pressing device for spinal massage, and more particularly, to a piston finger pressing device for spinal massage in which spacers are arranged at intervals along the spine of a human body, thereby improving the structure to enable the operation reliability of a piston raised by working pressure to be increased, whereby the massage effect can be improved by the finger pressing action at the accurate position, and the generation of device damage, noise, and vibration caused by the imbalance of the piston can be suppressed, thereby enabling the operation reliability to be ensured. BACKGROUND

[0002] As the number of people who are insufficiently exercised and work in the same posture for a long time increases, one of the diseases that frequently occur is a lumbar disc herniation, and in particular, recently, as the use time of various mobile devices including a notebook computer, a tablet computer, and a smart phone, which are not limited by age, gender, or the like, is getting longer, the number of people suffering from diseases of the cervical spine, which is a part between the skull and the thoracic spine constituting the spine, is rapidly increasing. That is, the cervical spine is generally a part called a cervical vertebra in the spine of our body, is composed of 7 spinal segments, and has a hole for the passage of the vertebral artery formed in the transverse process of each cervical vertebra, has a vein and a brachial plexus around the hole, and is connected to the body below and to the head above, and thus can be considered as an important part of the body. Such a cervical spine, like the thoracic spine and the lumbar spine, is greatly affected by the posture of a person and has various skeletal muscle diseases caused thereby. As one example thereof, a cervical disc herniation, like other disc herniations, can occur, deformation occurs on the ligament supporting the cervical spine from the rear side, the cervical muscle is stiffened due to various causes while compressing the nerve, and finally, various skeletal muscle diseases such as headache, cervical pain, shoulder and arm pain, etc. can occur.

[0003] In general, in order to treat low back pain or shoulder and arm pain, physical therapy for strengthening the muscle or stimulation of an acupuncture point to smoothly complete blood circulation, etc. is performed, and such a method is widely used to treat or even alleviate the disease state. In addition, the spinal disease is preferably relaxed by widening the interval between the spines to relax the compressed intervertebral disc, thereby accurately correcting the body shape by the relaxing action. That is, the finger pressing or massage is a kind of hand therapy in which a certain method is directly applied to the skin by mainly using the hand to give a mechanical stimulus, thereby causing a biological response to correct the change of the body to treat a disease and promote health. The blood circulation or lymph circulation is promoted by the finger pressing / massage, the metabolism is accelerated, the nutrition of the tissue is improved, the aged substances are excreted, and the resistance is enhanced. Such a tactile finger pressing stimulus stimulates the nerve to cause analgesic action, and thus has the effect of promoting the recovery of paralyzed nerves and promptly correcting the change of visceral function.

[0004] However, such a finger pressure / massage is mostly not performed by the person receiving the treatment alone, and thus requires the help of another person, and is troublesome, and in addition, since it is performed by the strength of a person, it has the problem that the effect is not constant. In order to solve this problem, various types of finger pressure / massage instruments that can receive finger pressure / massage by oneself have been developed and used in the past, and such instruments are mainly divided into a vibration massage instrument that vibrates a finger pressure member using a driving source, and an air pressure massage instrument that uses the pressure of air, but when it is a vibration massage instrument, it adopts a way of repeatedly hitting (pounding) a part of the body, and thus not only is the finger pressure effect low, but also has the disadvantage of causing secondary pain due to the hitting, and in addition, in order to accurately transmit the vibration of the finger pressure member to the body, it is necessary to press the body part with a certain strength using the finger pressure member, and thus not only is it inconvenient to use, but also is laborious, and has the problem that it is difficult to use continuously.

[0005] In addition, the air pressure massage instrument is an instrument that repeatedly applies pressure to a part of the body by injecting and discharging air into a cuff that surrounds a body part such as an arm or a leg or a waist, and such an instrument is simply a way of rubbing a part of the body, and thus not only is it difficult to expect the finger pressure effect of stimulating an acupuncture point or the like, but also needs to be worn on the arm or the leg or the waist or the like of the body, and thus has the disadvantage of being troublesome to use, and in such an air pressure massage instrument, there is a treatment instrument having a band shape that expands upward and downward by the action of air pressure, and thus exerts a traction force, and such a treatment instrument also needs to be worn on the neck or the waist or the like, and thus is inconvenient to use, and when the air pressure is not effective, not only is it difficult to respond quickly, but also the traction effect is not sufficient, and thus has the disadvantage of having a low treatment effect.

[0006] In particular, as a prior art that relaxes the cervical spine while compressing the suboccipital muscle or its surrounding part to improve the flow of cerebrospinal fluid, a functional cervical pillow is proposed in Registered Patent Gazette No. 10-1665115 (2016.10.12.), and specifically, a technology related to a functional cervical pillow that maintains the cervical spine in a "C" shape while lying down, and relieves the tension and pain of the neck muscles by finger pressing the first cervical vertebra, and when lying on the side, can sleep in a comfortable and correct posture without pressing the shoulder part is described, and it is configured to maintain the curvature of the cervical spine while being able to finger press the first cervical vertebra to finger press the suboccipital muscle, and thus has some similarities with the present invention, but only maintains the curvature of the cervical spine without including the function of relaxing the cervical spine and moving the cervical muscle, and does not include a structure for compressing the cerebral ventricle together with the suboccipital muscle, and thus has the disadvantage of not having the function of making the flow of cerebrospinal fluid smooth.

[0007] As still another prior art, Registered Patent Gazette No. 10-1077885 (2011.10.31.) relates to a fascia relaxation apparatus for physical therapy, and more particularly, discloses a technique related to a fascia relaxation apparatus for physical therapy, which includes a main body horizontally placed on a floor, a pillow finger pressure part protruding from one side of the main body to support a finger pressure pillow bone, a sub-occipital part protruding from a position in front of the pillow finger pressure part of the main body to support a finger pressure sub-occipital part higher than the pillow finger pressure part, and an upper thoracic vertebrae finger pressure part supporting a rear neck while the main body is not pushed away and protruding from a position in front of the sub-occipital part of the main body to finger pressure an upper thoracic vertebrae. However, this fascia relaxation apparatus for physical therapy simply compresses a sub-occipital muscle and structures around the same using a plurality of protrusions, and thus has a problem in that a therapeutic effect cannot be expected.

[0008] As still another prior art, Korean Patent Laid-Open Publication No. 10-2010-0113330 discloses a "finger pressure apparatus using an air bag" in which the following features are disclosed in claim 1: "A finger pressure apparatus using an air bag, which has an air bag placed under an air bag compression plate, has a plate having a finger pressure rod at a lower end under the air bag, and has a support fixed to four corners of the plate, so that the plate having the finger pressure rod is moved up and down by expansion and contraction of the air bag in a state in which the support is inserted into holes formed in four corners of the air bag compression plate, thereby compressing and releasing acupoints of a body under the finger pressure rod, so that an acupoint part can be finger pressed."

[0009] The finger pressure apparatus using an air bag according to the prior art is a structure in which the plate having the finger pressure rod is moved up and down with the air bag interposed therebetween and the support inserted into the holes formed in the four corners of the air bag compression plate, and thus has a disadvantage in that it is structurally complicated when arranged in parallel along a row of vertebrae. In particular, the prior art has a disadvantage in that the air bag is not firmly supported and moves in a horizontal direction during expansion and contraction, so that expansion pressure of the air bag cannot be accurately applied to a central part of the plate having the air bag compression plate and the finger pressure rod.

[0010] That is, since the air bag is inflated like a balloon into an elliptical shape, only when the air bag is fixed in position on the central portion of the plate having the air bag compression plate and the finger pressing rod, the plate having the finger pressing rod can have an up-and-down displacement without shaking by the inflation and contraction action, but the air bag according to the prior art is in an unconfined state, so it is easy to move in the horizontal direction when the inflation and contraction action is performed, and finally, with respect to the plate having the finger pressing rod, the inflation force is applied in an eccentric position, so the plate having the finger pressing rod is not parallel and is inclined. Therefore, in the state in which the plate having the finger pressing rod is inclined, the four supports and the holes of the air bag compression plate through which the supports pass do not maintain accurate positions with respect to each other and are eccentric due to the above reasons, thereby causing noise and frictional interference between the devices, so there is a problem in that it is difficult to smoothly lift and lower.

[0011] As still another prior art, "Air pressure massage device having physical therapy function" is proposed by Korean Patent No. 10-1468845, which proposes a structure in which a piston finger pressing plate is lifted and lowered inside a guide cylinder at the time of air bag collision, but the guide cylinder is a structure that is completely closed except for the upper surface, so it is necessary to assemble the air bag and the piston finger pressing plate, thereby having a problem in that assemblability is poor. In addition, the air bag is formed in a barrel shape, and a port (injection nozzle) for injecting air is formed on the side surface, so not only is it very difficult to manufacture, but when the air bag is contracted, the upper and lower surfaces of the air bag cannot be completely in close contact due to the air injection port, and finally, the finger pressing plate cannot be completely lowered due to the volume of the port, and furthermore, the port is joined to the air bag by heat fusion, so it has a problem in that it is easy to be damaged due to the accumulation of fatigue at the joint portion.

[0012] In addition, the air bag has a port for the injection and discharge of air formed on one side surface, so that the injection of air is completed, and the air bag can have a local inflation phenomenon in which inflation starts from the portion close to the port. That is, the existing air bag structure cannot be uniformly inflated and inflation occurs locally, so finally, the piston finger pressing plate cannot maintain horizontal balance and is inclined to either the left or right side, and finally, the left and right side surfaces of the piston finger pressing plate are in a state of frictional contact with the inner wall surface of the guide cylinder, and the lifting and lowering are completed with a disadvantage.

[0013] Therefore, the air bag needs to be inflated by normal air injection to cause the upward movement of the piston pressing plate, but the piston pressing plate is in frictional contact with the guide cylinder, thus having the disadvantage that excessive air injection needs to be completed, thereby causing the durability of the air bag to decrease, and not only that, noise and vibration are generated due to the friction of the piston pressing plate and the guide cylinder, thus not only causing dissatisfaction of the consumer, but also having the problem that the device is damaged due to repeated friction.

[0014] In addition, the piston pressing plate that moves upward in a state of tilting to one side also descends in a state of tilting to one side, thus having the same problem that occurs when it moves upward, and importantly, the piston pressing plate cannot accurately maintain the balance to move up and down, causing local pain to the body part of the user, thus having the problem that dissatisfaction with the product is aggravated.

[0015] As still another prior art, "Massage device having physical therapy function" is proposed by Korean Patent No. 10-1561005, which discloses the structure of a pressing piece, a cylinder, and a lifting air bag, the pressing piece is provided on a pillow placement part to be lifted by the supply and exhaust of air pressure, the cylinder accommodates the lower end of the pressing piece, and the lifting air bag is provided inside the cylinder to be inflated in volume by the supplied air pressure. However, according to the massage device of the prior art, when air is supplied to the lifting air bag, local inflation occurs from the portion connected to the air injection nozzle, and this local inflation eventually causes the pressing piece to tilt to either the left or right side in a state of not maintaining the horizontal state, and finally, the pressing piece is lifted in a state of being in frictional contact with one side of the inner wall surface of the cylinder, thus not only causing noise and vibration, but also having the serious problem that the device is damaged due to friction. In addition, according to the massage device of the prior art, the lower end of the pressing piece is lifted in a state of being inserted into the cylinder, thus finally being lifted in a state where only the lower end of the pressing piece is supported by the cylinder and the upper end is not supported at all, and thus, the upper end of the pressing piece is easily moved in the horizontal direction and has the serious problem of shaking when the air bag is inflated and contracted. Thus, the upper end of the pressing piece is moved seriously while being lifted, causing the pressing piece to not effectively press the body of the user in the accurate position, and not only that, pain is caused due to the displacement of the position of the pressing piece, thus having the serious problem that dissatisfaction with the product is aggravated. SUMMARY

[0016] TECHNICAL PROBLEM

[0017] The present invention has been made to solve the problems of the prior art as described above, and an object of the present invention is to provide a piston pressure device for spinal massage, which can stably perform a lifting operation without shaking the piston in a lifting direction, thereby improving a massage effect by a finger pressure at an accurate position, and can improve reliability of operation and satisfaction with a product by preventing damage to the device, noise, and generation of vibration caused by imbalance of the piston in advance.

[0018] In addition, an object of the present invention is to provide a piston pressure device for spinal massage, which can simplify a structure, thereby improving reliability of operation, and can adjust a gap of a cylinder housing according to a gap between spines corresponding to a height of a user, thereby being able to perform a finger pressure at an accurate position.

[0019] In addition, an object of the present invention is to provide a piston pressure device for spinal massage, which can improve a therapeutic effect caused by vibration or warm heating by a structure in which a vibration motor or a warm heater is provided in a finger pressure protrusion, thereby being able to improve a therapeutic effect caused by vibration or warm heating together with a finger pressure effect generated as the piston is lifted.

[0020] Technical Solution

[0021] To achieve the object, a piston pressure device for spinal massage according to a preferred embodiment of the present invention is characterized in that the device is composed of a cylinder housing, a piston, an upper housing, a balance spring, and a driving part, the cylinder housing is composed of a chamber in which a gas bag is accommodated inside and an upper surface of which is open, and a cover plate which covers the open upper surface of the chamber and forms a slot in a width direction, the piston is composed of a lifting plate part which is disposed to be lifted by the gas bag by passing through the slot inside the chamber, and a pressure plate part which extends to an upper portion of the lifting plate part and presses spines by the upper portion thereof when being lifted, the upper housing is connected to the cylinder housing at one end thereof to guide and support the pressure plate part of the piston, the upper housing has a guide surface which is vertically extended from an edge of an access hole through which the pressure plate part passes, thereby allowing the pressure plate part to be in sliding contact with the ground even in a completely lowered state, the balance spring is supported at one end thereof by the cylinder housing or the upper housing and at the other end thereof by one side of the piston, thereby applying a descending elastic force, and the driving part is composed of a valve which is connected to the gas bag to limit supply and exhaust of air, a pump which generates air pressure, and a controller which controls the valve and the pump.

[0022] As a preferred feature of the present invention, the cylinder housing is composed of a main body and a cover plate, the main body has both side surfaces thereof open and forms a chamber in a trapezoidal shape in which a width gradually widens from a lower portion to an upper portion, and the cover plate is disposed to cover the open upper surface of the main body and forms an assembly hole to allow the lifting plate part to be inserted in a side surface, the cover plate forms a slot which is connected to the assembly hole to allow the lifting plate part to pass therethrough.

[0023] As a preferred other feature of the present application, the cylinder housing is internally formed as a bucket shape open at the top, divided into 2-7 chambers by partition walls, the cylinder housing is composed of a main body, open at both sides, and forming chambers of trapezoidal shape gradually widening in width from the lower part to the upper part, and a cover plate provided on the open top of the main body, and composed of assembly holes formed to insert pistons in the cross direction at the side for adjacent chambers, and slots connected to the assembly holes, for the passage of the lift plate.

[0024] As a preferred further other feature of the present application, the balance spring is hung at one end at the lower center of the side of the lift plate part, and curved upward at both ends with the center as a fulcrum, to be supported by the lower face of the cover plate, thereby acting a descending elastic force on the rising piston, the balance spring is composed of an insertion slot having a size for the insertion passage of the lift plate part, a pair of elastic displacement parts having "U" shape arranged in front and back sides with the insertion slot as a center, and a connecting part connecting both ends of the pair of elastic displacement parts, thereby presenting a closed curve, wherein the balance spring is composed of one of a leaf spring or a steel wire spring formed by bending a steel wire.

[0025] As a preferred further other feature of the present application, the balance spring is hung at one end at the lower center of the side of the pressurizing plate part, and curved upward at both ends with the center as a fulcrum, to be supported by the lower face of the upper housing, thereby acting a descending elastic force on the rising piston, the balance spring is composed of an insertion slot having a size for the insertion passage of the pressurizing plate part, a pair of elastic displacement parts having "U" shape arranged in front and back sides with the insertion slot as a center, and a connecting part connecting both ends of the pair of elastic displacement parts, thereby presenting a closed curve, wherein the balance spring is composed of one of a leaf spring or a steel wire spring formed by bending a steel wire.

[0026] As a preferred further other feature of the present application, the balance spring is a plurality of coil springs, one end of the coil spring is supported by one side of the lift plate part or the descending plate part, and the other end is supported by the lower face of the chamber or the upper housing, thereby acting a descending support force on the piston.

[0027] As a preferred further feature of the present application, the cylinder housing is composed of a main body forming a trapezoidal shaped cavity with an open upper surface and two side surfaces and a gradually increasing width from the lower part to the upper part, a cover plate provided to shield the open upper surface of the main body, forming a slot having a reduced width of the cavity in the width direction for the passage of the lifting plate part, and a rail protruding at intervals on the lower surface of the cover plate, so that both ends of a "U" shaped balance spring having a center part curved in a concave shape are slidably inserted between the rails, thereby being movable in the spring displacement direction and preventing movement in the width direction.

[0028] As a preferred further feature of the present application, the air bag is composed of an inflation bag part in contact with the lower surface of the lifting plate part to apply an inflation force, and a reinforcement bag part connected to one side of the inflation bag part by a folding structure to have a nozzle for injecting and discharging air from the outside.

[0029] As a preferred further feature of the present application, the controller is composed of a pressure detection sensor for detecting the inflation pressure of the air bag, and an inflation control part connected to the pressure detection sensor circuit to compare and judge with a preset value, thereby applying a control signal to the pump and the valve to maintain within the set value range.

[0030] As a preferred further feature of the present application, the lifting plate part is composed of a flat surface formed flat on the lower surface to be in contact with the upper surface of the air bag, a lower frame extending to be formed with a thickness decreasing upward from the flat surface, and a hook protruding to be formed at the center lower part of the front and rear side surfaces to hook the center part of the balance spring, the pressurizing plate part having an enlarged volume at the upper part of the lower frame and located at the upper part of the cover plate, the pressurizing plate part being composed of an upper frame formed with one or more guide rails in a direction perpendicular to the front and rear side surfaces to be slidably inserted into a guide groove formed corresponding to the upper housing, the upper frame extending to be formed from the upper part of the lower frame, a cover cap covering the outside of the upper frame with a central part of the upper surface curved in a spine placement curve to place the spine of the human body, and a finger pressure plate formed with a plurality of finger pressure protrusions integrally protruding at the upper part of the cover cap by injection molding to press the muscles on both sides of the spine.

[0031] As a preferred further feature of the present application, the finger pressure protrusions are composed of any one or both of a vibration motor supplied with a power source to generate vibration or a warm heater supplied with a power source to generate a heating effect.

[0032] As a preferred still other feature of the present application, the cylinder housings are composed of 2 to 7 in number so that the intervals therebetween can be adjusted, the cylinder housings are composed of a sliding tray that guides movement in a direction for adjusting the intervals in a state where the cylinder housings are arranged side by side, and adjusting bolts that are inserted through one ends of the respective cylinder housings by screw coupling and are screw-coupled to each other at intervals that gradually increase or decrease with respect to the respective cylinder housings.

[0033] As a preferred still other feature of the present application, the cylinder housings are composed of 2 to 10 in number so that the intervals therebetween can be adjusted, the cylinder housings are composed of a guiding tray in which the cylinder housings are slidably placed, and fixing screws that are coupled to one side of the guiding tray so that end portions thereof selectively pressurize the cylinder housings, thereby limiting the positions.

[0034] Inventive Effects

[0035] The spine massage piston finger pressing device according to the present application has the advantage that the piston that is raised and lowered by the expansion and contraction of the air bag is firmly secured against shaking by the support structure of the upper and lower portions, thereby being able to improve the massage effect by the finger pressing action at an accurate position.

[0036] In addition, the piston can be prevented from moving in the traveling direction during the raising and lowering operation, thereby being able to prevent the generation of damage, noise, and vibration caused by friction due to the interference of the device resulting from the imbalance of the piston in advance, thereby being able to increase the durability of the product, ensure the reliability of the operation, and ultimately expect a useful effect of greatly improving the satisfaction of the consumer with the product.

[0037] In addition, the accurate movement of the piston can be secured, thereby being able to accurately and effectively perform the finger pressing action on the cervical vertebrae or thoracic vertebrae and lumbar vertebrae that constitute the spine, thereby relaxing and strengthening the spine and the surrounding muscles therebetween, thereby smoothly guiding the blood circulation and activation, and having the advantage that the therapeutic effect can be improved by the finger pressing that promotes metabolism.

[0038] In addition, the present application is a structure that enables the user to enjoy the finger pressing in a comfortable posture without being limited to the body parts, and thus has the advantage that not only is there no danger of a safety accident due to a mechanical failure, but also the use is relatively safe from the occurrence of pain and injury due to excessive physical force, i.e., the finger pressing force.

[0039] In addition, the present application has a simple structure and a small size, and thus has the advantage that the portability and storage convenience are high, the psychological burden of the user on the existing spine therapeutic instrument can be minimized, and the use in a stable and comfortable posture is possible.

[0040] In addition, the present application is of a type in which a plurality of cylinder housings are arranged, whereby the spacing between the respective cylinder housings is adjusted, so that the finger pressure can be enjoyed in accordance with the spacing between the vertebrae in accordance with the height of the user, with the advantage that the effect of the finger pressure can be improved.

[0041] In addition, the present application is of a type in which a plurality of cylinder housings are arranged, whereby the spacing between the respective cylinder housings is adjusted, so that the finger pressure can be enjoyed in accordance with the spacing between the vertebrae in accordance with the height of the user, with the advantage that the effect of the finger pressure can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a perspective view showing a piston finger pressure device for spinal massage according to the present application,

[0043] Figure 2 is an example view for explaining the operation of Figure 1

[0044] Figure 3 is a sectional view for explaining the internal structure of Figure 1

[0045] Figure 4 is an exploded perspective view for explaining the structure of Figure 1

[0046] is a plan view showing the upper housing assembly shown in Figure 5 Figure 1 is a sectional view showing the 'A-A' line of

[0047] Figure 6 Figure 5 is a perspective view showing the main part structure of the present application,

[0048] Figure 7 is a view from the side of

[0049] Figure 8 is a plan view from above of Figure 7

[0050] Figure 9 is a perspective view for explaining an operation example of Figure 7

[0051] is a view from the side of Figure 10 Figure 9 is a plan view from above of

[0052] Figure 11 Figure 7 is a sectional view showing the 'C-C' of

[0053] Figure 12 is a sectional view showing the 'C-C' of Figure 11 ​​​​​​​​

[0054] Figure 13 and Figure 14 is an exploded perspective view for explaining the structure of the cylinder housing,

[0055] Figure 15 and Figure 16 is a view for explaining a modified embodiment of the present application,

[0056] Figure 17 is a view showing an embodiment of the interval adjustment between the cylinder housings in the present application,

[0057] Figure 18 is a block diagram for explaining the structure of the driving portion in the present application.

[0058] Reference numerals:

[0059] 10: cylinder housing, 11: main body, 12: chamber, 13: cover plate, 13a: slot, 13b: assembly hole, 14: rail, 15: air bag, 15a: expansion bag portion, 15b: reinforcement bag portion, 15c: nozzle, 20: piston, 21: lifting plate portion, 23: pressurizing plate portion, 30: upper housing, 31: placement portion, 31a: access hole, 32: guide surface, 40: balance spring, 50: driving portion, 51: valve, 53: pump, 55: controller DETAILED DESCRIPTION

[0060] The structure and action of the embodiments of the present application are explained in detail below with reference to the drawings. However, it should be understood that the present application is not limited to the specific disclosed forms, including all modifications, equivalents, and even alternatives included in the concept and technical scope of the present application.

[0061] Figure 1 is a perspective view showing a piston finger pressing device for spinal massage according to the present application. In the figure, an upper housing 30, which forms an outer shape, having a curved curvature to be able to place a spinal portion of a human body when a user lies down, and a piston 20, an upper end portion of which is supported by the upper housing 30, thereby performing a finger pressing action on a user's spine by a lifting action, are illustrated, and a piston finger pressing device for spinal massage 1 having a structure in which the upper housing 30 and the piston 20 are combined with an upper cover 5 and a bottom cover 7, which form an outer shape, are illustrated.

[0062] Figure 2 is a view for explaining Figure 1is a diagram showing an example of the operation of the present application. In the diagram, a piston 20 is shown assembled on an upper cover 5 and a bottom cover 7 that form the outer shape, and an upper case 30 that guides the upper part of the piston 20 so as to prevent movement. The diagram shows a cervical vertebra massage piston finger pressure device having a plurality of pistons 20 spaced apart so as to pressurize and support the periphery of the cervical vertebra of a user by selectively raising and lowering.

[0063] Figure 3 is a diagram showing the internal structure of the cervical vertebra massage piston finger pressure device shown in Figure 1

[0064] Figure 4 is a diagram showing the internal structure of the cervical vertebra massage piston finger pressure device shown in Figure 1 is an exploded perspective view showing the structure of the present application. In the diagram, a cervical vertebra massage piston finger pressure device 1 is shown having a structure composed of an upper case 30, a piston 20, and a cylinder case 10. The upper case 30 is formed with an access hole 31a that is a hole that passes through in a rectangular shape so that the piston 20 can be accessed from the uppermost side. The piston 20 is disposed on the lower side of the upper case 30 so as to be selectively raised and lowered and accessed through the access hole 31a. The cylinder case 10 is provided with a chamber 12 that houses a gas bag 15 that applies a raising and lowering force to a raising plate portion 21 that constitutes the piston 20. The cylinder case 10 is assembled on a bottom cover 7 that is assembled integrally with an upper cover 5. The upper cover 5 and the bottom cover 7 form the outer shape of the massage device. In the present application, the upper cover 5 and the bottom cover 7 that are applied to the cervical vertebra massage device shown in FIG. 21 are used for convenience.​

[0065] Figure 5 is a plan view showing Figure 1 the upper case assembly shown in Figure 6 is a sectional view taken along the line Figure 5 of the upper case 30 formed with a guide surface 32, each of the access holes 31a extending in a vertical direction so that the guide surface 32 is in sliding contact with an outer surface of the pressure plate portion 23 constituting the piston 20, thereby preventing movement and ensuring stable lifting operation, the placement portion 31 at this time being provided with a curved curvature to enable arrangement of a plurality of pistons 20 along the spine of a user's body, whereby the guide surface 32 can be formed in a downward direction or protruded in an upward direction with the access holes 31a formed on the placement portion 31 as a reference.

[0066] Figure 7 is a perspective view showing a main portion structure of a spine massage piston finger pressing device according to the present application, Figure 8 is a view observed from Figure 7 the side. In the drawing, a spine massage piston finger pressing device 1 is illustrated, the spine massage piston finger pressing device 1 being composed of an upper case 30 provided with a placement portion 31 formed with a plurality of access holes (not shown) at a spaced interval, a cylinder housing 10 arranged at a lower side of the upper case 30 and integrally combined with or limited by a constituting means (not shown) to include a main body 11 provided with a plurality of chambers 12 for accommodating a gas bag 15 supplied with gas pressure to expand or contract in volume, and a piston 20 in which a lifting plate portion 21 is accommodated in the chamber 12 of the cylinder housing 10 to be lifted by a lifting force obtained by the gas bag 15, the piston 20 being composed of a pressure plate portion 23 which is lifted or lowered by selection to apply a pressure support force to a user's body portion through the access hole 31a of the upper case 30.

[0067] Figure 9 is a perspective view for explaining Figure 7 an operation example, Figure 10 is a view observed from Figure 9Fig. 1 is a diagram showing the state in which the middle one of the three pistons 20 is in an upward moving state, and the pistons 20 on both sides in which the air bag 15 is not inflated are in a downward state, and the middle one of the pistons 20 in which the air bag 15 is inflated is in an upward moving state. At this time, the piston 20 is composed of a lifting plate portion 21 and a pressing plate portion 23. The lifting plate portion 21 is located on the upper side of the air bag 15 and is linked with the expansion and contraction force. The pressing plate portion 23 extends from the upper portion of the lifting plate portion 21 and thus exerts a pressing support force on the user's body part. Fig. 1 illustrates a spine massage piston finger pressing device 1. The structure of the spine massage piston finger pressing device 1 is such that the lifting plate portion 21 of the piston 20 is accommodated in the cylinder housing 10 that constitutes a plurality of chambers 12 divided by a partition wall, and thus is linked with the air bag 15 to perform a lifting action.

[0068] Figure 7 Fig. 2 is an exploded view of the structure shown in Fig. 1. The components are arranged in the order of an upper case 30, a piston 20, a balance spring 40, and a cylinder housing 10 from the uppermost side, and the upper case 30 is shown as being assembled on the upper cover 5 that forms an outer shape, and an access hole 31a through which the piston 20 passes in and out is formed. The upper case 30 is composed of a guide surface 32 and a placement portion 31. The guide surface 32 extends in the vertical direction along the edge of the access hole 31a, and thus is in sliding contact with the side surface of the pressing plate portion 23 of the piston 20 to guide the piston 20 to prevent movement. The placement portion 31 is formed with a guide groove 31b that is formed in the vertical direction along the guide surface 32, and a guide rail 23e that is formed on the side surface of the pressing plate portion 23 of the piston 20 to be described later is inserted into the guide groove 31b to stably guide displacement in the vertical direction.

[0069] In addition, Fig. 2 illustrates the structure in which the piston 20 is composed of the lifting plate portion 21 and the pressing plate portion 23. The lifting plate portion 21 is composed of a flat surface 21a, a lower frame 21b, and a hook 21c. The flat surface 21a is formed flat on the lower side to be in contact with the upper surface of the air bag 15. The lower frame 21b is formed vertically on the flat surface 21a to have a thickness that decreases toward the upper side. The hook 21c is formed on the center lower side of the front and rear side surfaces of the lower frame 21b to hook the center portion of the balance spring 40 to be described later. The pressing plate portion 23 is composed of an upper frame, a cover, and a finger pressing plate 23c. The upper frame has a volume that is enlarged from the upper portion of the lower frame 21b and is located on the upper portion of the cover plate 13. The cover is composed of a member that surrounds the outer portion of the upper frame. The upper surface of the cover is formed as a placement curved surface that has a groove shape in which the center portion is concave to place the spine of the human body. The finger pressing plate 23c is formed with a plurality of finger pressing protrusions 23d that are provided on the upper portion of the cover to press the muscles on both sides of the spine.

[0070] Then, a balance spring 40 configured in the lower portion of the piston 20 is composed of an insertion groove having a size for the lift plate portion 21 to be inserted therethrough, a pair of elastic displacement portions configured in front and rear sides with the insertion groove as a center so as to have a shape in which the central portion is concave and both ends are curved upward, and a connection portion connecting both ends of the pair of elastic displacement portions so as to have a closed curve, and in the present embodiment, a steel wire spring in which a steel wire is bent and formed is illustrated.

[0071] Finally, a structure in which the cylinder housing 10 is composed of a main body 11 forming a plurality of chambers 12 having a trapezoidal shape in which the width is gradually widened toward the upper portion while being partitioned by a partition wall, and a cover plate 13 formed to shield the open upper surface of the main body 11 and formed with an assembly hole 13b so as to be able to insert the lift plate portion 21 of the piston 20 in the lateral direction, the cover plate 13 being formed with a slot 13a which is a hole connected with the assembly hole 13b for the lift plate portion 21 to pass through, is illustrated.

[0072] Figure 11 is a plan view Figure 7 observed from above, Figure 12 is a sectional view Figure 11 of 'C-C' of Figure 11 and Figure 12Fig. 1 is a perspective view showing a cylinder housing 10, a piston 20, a balance spring 40, and a gas bag 15. The cylinder housing 10 is composed of a main body 11 formed in a rectangular shape and having a plurality of chambers 12 formed therein to accommodate the gas bag 15, and a cover plate 13 covering the open upper surface of the main body 11 and having an assembly hole 13b formed in a cross direction and a slot 13a formed in one side of the assembly hole 13a to allow a lifting plate portion 21 of the piston 20 to pass therethrough. The piston 20 is composed of the lifting plate portion 21 accommodated in the chamber 12 of the cylinder housing 10 to be lifted in conjunction with the expansion and contraction force of the gas bag 15, and a pressurizing plate portion 23 integrally provided at the upper portion of the lifting plate portion 21 and positioned at the upper side of the cover plate 13 to be lifted in conjunction therewith. The balance spring 40 has one end hung at the lower portion of the side surface center of the lifting plate portion 21 of the piston 20 and both ends bent upward to be elastically supported by the lower surface of the cover plate 13 to apply an elastic support force downward with respect to the piston 20. The gas bag 15 is composed of an expansion bag portion 15a provided in the chamber 12 to be expanded by the supply of gas pressure from the outside, a reinforcing bag portion 15b connected in a folded structure at one side of the expansion bag portion 15a to be folded vertically at the outside of the chamber 12, and a nozzle 15c connected to the reinforcing bag portion 15b to function as a connection port for injecting air and exhausting gas from the outside.

[0073] Figure 13 and Figure 14 Fig. 2 is an exploded perspective view for explaining the structure of the cylinder housing. The figure shows the main body 11 having a plurality of chambers 12 in a trapezoidal shape and having the upper surface and both side surfaces open, the cover plate 13 as a plate-shaped member assembled on the open upper surface of the main body 11 and having a slot 13a formed with a perforation through which one end of the piston 20 passes, the slot 13a being formed by connecting the assembly hole 13b in a cross direction to assemble the piston 20 at the side surface, the cover plate having a rail 14 protruded at the lower surface to allow both ends of the balance spring 40 to be displaced only in the elastic displacement direction to prevent movement in the width direction, thereby maintaining the lifting support force of the piston 20, and the gas bag 15 accommodated in the chamber 12 to apply the lifting force to the piston 20. The gas bag 15 is composed of the expansion bag portion 15a and the reinforcing bag portion 15b having the nozzle 15c.

[0074] Figure 15 and Figure 16is a view for explaining a modified embodiment of the present application. In this embodiment, the size of the access hole 31a formed on the placement portion 31 constituting the upper case 30 is set so that the piston 20 can be tilted to the right or left side to be raised or lowered, and although not shown, at the lower portion of the piston 20, with the view as a reference, air bags 15 can be provided at the left and right sides, respectively, and in the air bags 15 disposed at the left and right sides, when the left-side air bag is selectively inflated, as shown in Figure 15 , the piston 20 is in a state in which the left side is raised and the right side is lowered, and when the right-side air bag is selectively inflated, as shown in Figure 16 , the piston 20 is in a state in which the left side is lowered and the right side is raised.

[0075] In this embodiment, a spine massage piston finger pressing device 1 is illustrated in which the piston 20 is in a state in which the pressure plate portion 23 constituting the upper portion thereof is in sliding contact with the guide surface 32 formed perpendicularly along the edge of the access hole 31a of the placement portion 31 to be raised or lowered, and thus stability can be imparted to the raising and lowering operation, and in particular, the balance spring 40 is a structure in which the central lower portion uniformly exerts an elastic support force downward regardless of the tilt of the piston 20, and thus ultimately, during the raising and lowering operation of the piston 20, shaking or vibration caused by irregular inflation of the air bag 15 and the generation of motion caused by other factors can be suppressed.

[0076] Figure 17 is a view showing an embodiment of the interval adjustment between the cylinder cases in the present application. In the view, cylinder cases 10 are disposed at the left and right sides, respectively, and the respective cylinder cases 10 are set to be adjustable in interval from each other, and for this purpose, various techniques known in the art can be applied without any problem.

[0077] In the present application, as a preferred embodiment, a sliding tray t is exemplified which guides the movement of the respective cylinder cases 10 in the direction in which they are brought closer to or farther apart from each other in a state in which a plurality of cylinder cases 10 are disposed in parallel, and is coupled to be combined at one end of the respective cylinder cases 10 by a screw, so that the plurality of cylinder cases 10 as a whole are moved along the thread by being rotated in the clockwise or counterclockwise direction. At this time, the respective end portions of the adjustment bolt S are screw-coupled to the respective cylinder cases 10 by being formed with different step thread pitches Ll, L2 from each other, and thus even if the adjustment bolt S is rotated by a predetermined angle in the clockwise or counterclockwise direction, the movement amounts of the respective cylinder cases 10 are different from each other.

[0078] As described above, in the present application, the reason for providing the interval adjustment means is that when the user is tall, the interval between the vertebrae is relatively wide, but when the user is short, the interval between the vertebrae is relatively narrow, and thus it is for compensating for this problem.

[0079] Figure 18is a block diagram for explaining the structure of the driving section 50 in the present application.

[0080] The structure of a valve 51 provided on a discharge pipe connected to a nozzle 15c of the air bag 15 to open and close the pipe by a control signal to inject air into the air bag 15 and discharge air, a pump 53 for generating and supplying air pressure to the valve 51, and a controller 55 for applying a control signal to the valve 51 and the pump 53 to control the operation are illustrated in the drawing.

[0081] Hereinafter, the structure of the piston finger pressure device for spinal massage according to the present application will be explained with reference to the drawings.

[0082] The piston finger pressure device for spinal massage 1 according to the present application is generally composed of a cylinder housing 10 as a fixed member, a piston 20 as a running member provided on the cylinder housing 10 to perform a lifting operation, an upper housing 30 for supporting an upper end portion of the piston 20, a balance spring 40 for stably maintaining the balance of the lifting operation of the piston 20 while applying a descending elastic support force to the piston 20, and a driving section 50 for performing air supply and discharge for the lifting operation of the piston 20.

[0083] The cylinder housing 10 is generally composed of a main body 11 forming an overall shape and a cover plate 13 assembled on the open upper surface of the main body 11 or provided by one-piece injection molding.

[0084] The main body 11 internally accommodates an air bag 15 and is open at the upper surface and both side surfaces, and is formed with a chamber 12 having a trapezoidal shape having a width gradually widened from the lower portion to the upper portion.

[0085] The cover plate 13 is used to shield the chamber 12 upper surface of the open main body 11, and is formed with a slot 13a in the width direction so that a lifting plate portion 21 constituting the piston 20 described later can be inserted therethrough. The slot 13a is formed with an assembly hole 13b connected on one side, and the piston 20 is assembled by being inserted into the side portion of the chamber 12 through the assembly hole 13b.

[0086] In addition, the cover plate 13 is formed with rails 14 protrudingly provided at intervals under the cover plate 13, so that both end portions of a curved balance spring 40 having a "U" shape with a central portion recessed are slidably inserted therebetween, and the rails 14 function to guide the both end portions of the balance spring 14 to be slidably inserted to be movable in the direction of elastic displacement while suppressing movement in the thickness direction of the piston 20.

[0087] In one aspect, in the present invention, the cylinder housing 10 can be provided in a form of forming only one chamber 12 or as shown, in a form of forming a plurality of chambers 12, preferably about 2 to 7, when the plurality of chambers 12 are formed, each chamber 12 is formed by being partitioned by a partition wall, and the cover plate 13 is formed with an assembly hole 13b to enable the assembly piston 20 to be inserted in a cross direction to the adjacent chamber 12 on the side surface.

[0088] In addition, the air bag 15 accommodated in the chamber 12 is generally composed of an expansion bag portion 15a which is greatly affected by the expansion pressure on the lower surface of the lifting plate portion 21 and a reinforcing bag portion 15b which is connected by being folded on one side of the expansion bag portion 15a and to which a nozzle 15c for injecting air and exhausting air from the outside is connected. Among them, the expansion bag portion 15a is a portion which substantially expands by injecting air and then floats by contacting the flat surface 21a of the piston 20, and the reinforcing bag portion 15b is provided as a portion to which the nozzle 15c is connected in a state of being vertically folded in a state of protruding to the outside of the chamber 12. By this structure, the nozzle 15c is located outside the chamber 12.

[0089] The piston 20 is composed of a lifting plate portion 21 which is a moving portion located in the chamber 12 and moves up and down through the slot 13a and is lifted in conjunction with the expansion and contraction of the air bag 15, and a running plate which is integrally provided on the upper portion of the lifting plate portion 21 and has a pressure ridge on the upper surface thereof when moving up.

[0090] The lifting plate portion 21 is composed of a flat surface 21a which is formed flat on the lower surface to contact the upper surface of the air bag 15, a lower frame 21b which extends from the flat surface 21a with a thickness decreasing toward the upper side, and a hook 21c which is formed to protrude from the lower frame 21b at the center of the front and rear surfaces to hook the center portion of the balance spring 40 described later.

[0091] The pressurizing plate portion 23 is an element exposed to the outside of the upper portion of the chamber 12, i.e., the cover plate 13, while having an enlarged volume in the upper portion of the lower frame 21b, and is a structure formed with one or more guide rails 23e in a direction perpendicular to the front and rear sides and slidably inserted into a guide groove 31b formed in correspondence with the upper case 30. The pressurizing plate portion 23 is composed of an upper frame connected to the upper portion of the lower frame 21b, a cover covering the outside of the upper frame, and a finger pressure plate 23c formed with a plurality of finger pressure protrusions 23d integrally protruding from the upper portion of the cover by insert or embed injection molding, thereby finger-pressing the muscles on both sides of the spine.

[0092] The upper case 30, like the cylinder case 10, can be combined and connected with the cylinder case 10 by a plurality of constituent devices or integrally assembled, and in the present application, a structure integrally combined with the upper cover 5 and the bottom cover 7 is proposed. The upper case 30, as an element for preventing movement and enabling stable operation when the pressurizing plate portion 23, which is the upper end portion of the piston 20, is raised and lowered, is provided with a placement portion 31 formed with an access hole 31a through which the pressurizing plate portion 23 passes, and a guide surface 32 formed in a vertical direction at the edge of the access hole 31a, which slidably comes into contact with the outer surface of the pressurizing plate portion 23 constituting the piston 20 in a state in which the piston 20 is completely lowered.

[0093] The balance spring 40, one end of which is supported by the cylinder case 10 or the upper case 30 and the other end of which is supported by one side of the piston 20, is a restoring element that exerts an elastic force. The balance spring 40 can be provided in various forms, and in the present application, as a preferred embodiment, the balance spring is a structure in which one end is hung on a hook 21c protrudingly formed in the center of the lower portion of the side surface of the lower frame 21b constituting the lifting plate portion 21 and the both ends are symmetrically curved upward about the hook 21c to be supported by the lower surface of the cover plate 13, and by this structure, the piston 20 that has been raised is exerted with a descending elastic force.

[0094] The balance spring 40 is composed of an insertion groove having a width and a magnitude through which the lifting plate portion 21 is inserted, a pair of elastic displacement portions having a "U" shape arranged in front and rear sides about the insertion groove and located in the front and rear side surfaces of the piston 20, and a connecting portion in a closed curve connecting the both ends of the pair of elastic displacement portions. The balance spring 40 can be provided by a plate spring or a steel wire spring in which a steel wire is bent and formed.

[0095] In one aspect, the balance spring 40 in the present application is arranged with one end hanging from the lower center of the lower frame 21b constituting the piston 20 and both ends supported by the lower sides of the lower surface of the cover plate 13, thereby guiding the sliding in the elastic displacement direction and suppressing the movement in the front and rear directions, but in addition thereto, as long as the descending support force is applied to the piston 20, it is provided in various forms without any problem.

[0096] As an example, although not shown, the balance spring can be configured with one end hanging from the lower side of the pressurizing plate portion 23 and both ends curved upward with the same as the center, thereby applying the descending elastic force to the piston 20 supported by the lower surface of the upper case and raised, the balance spring at this time is composed of an insertion groove having a size for the pressurizing plate portion 23 to be inserted therethrough, a pair of elastic displacement portions having a "U" shape arranged on the front and rear sides with the insertion groove as the center, and a connection portion in a closed curve connecting both ends of the pair of elastic displacement portions, and the balance spring can use any one of a plate spring or a steel wire spring formed by bending a steel wire.

[0097] As still another embodiment, in addition to the plate spring or the steel wire spring formed by bending a steel wire, a coil spring can also be used, the coil spring at this time can adopt a structure in which a plurality of coil springs are arranged, one end of the coil spring is supported by one side of the lifting plate portion 21 or the descending plate portion, and the other end is supported by one side of the lower surface of the chamber 12 or the upper case 30, thereby applying the descending support force to the piston 20.

[0098] In one aspect, the finger pressure protrusion 23d can be provided with any one or all of a vibration motor (not shown) or a warm heater inside thereof, the vibration motor supplies the power source when the piston 20 is raised, thereby generating vibration, the warm heater is supplied with the power source, thereby generating the heating effect, the vibration motor or the warm heater is an element for improving the massage effect by vibration and warm effect together with the finger pressure effect by the pressurization of the piston 20.

[0099] The driving portion 50 is composed of a valve 51 connected with the air bag 15, thereby limiting the supply and exhaust of air, a pump 53 supplied with the power source, thereby selectively generating the air pressure, and a controller 55 controlling the operation of the valve 51 and the pump 53.

[0100] The valve 51 is provided on the discharge pipe connected with the nozzle 15c of the air bag 15, thereby functioning to supply the air pressure or exhaust, the valve 51 is an element circuit-connected with the controller 55, thereby receiving the control signal and performing the opening and closing operation. The valve 51 can use a publicly known electromagnetic valve.

[0101] The pump 53 can use an externally supplied power source to generate air pressure, and the pump 53 is electrically connected to the controller 55 to selectively apply a control signal to control the generation or interruption of air pressure.

[0102] The controller 55 is a control element that is connected to an operation panel configured as a plurality of buttons or switches to input an operation force from a user to input a control signal while applying a control signal to the valve 51 and the pump 53. The controller can be provided in various forms, and can be provided in the form of a wireless remote controller or configured to control a smartphone or computer through Bluetooth, WIFI, wireless broadband, NFC, or the like. The controller 55 is configured with a pressure detection sensor 55a that detects the inflation pressure of the air bag 15 and an inflation control portion 55b that is electrically connected to the pressure detection sensor 55a to compare and determine with a preset value to maintain the pressure value in the air bag 15 within a set value range.

[0103] In the present application, the cylinder housings 10 can be provided in a plurality of configurations to enable adjustment of the spacing therebetween, because the spacing of the spine is narrow or wide depending on the height of the user, and thus the spacing of the cylinder housings 10 can be adjusted to address this issue.

[0104] To this end, in the present application, as a preferred embodiment, as shown in Figure 17 a sliding tray t that guides the plurality of cylinder housings 10 in a direction to approach or separate from each other, and an adjustment screw s that is coupled by screwing at one end of each of the cylinder housings 10 to move the plurality of cylinder housings 10 as a whole along the threads by rotating in the clockwise or counterclockwise direction. Characteristically, the adjustment screw S is formed with different stepped thread pitches L1, L2 from each other, and each of the cylinder housings 10 is screw-coupled to the stepped thread pitches L1, L2.

[0105] With this structure, when the adjustment screw S is rotated by a predetermined angle in the clockwise or counterclockwise direction, each of the cylinder housings 10 moves along the stepped thread pitches L1, L2 formed with different thread pitches from each other, and thus the displacement amount of each of the cylinder housings 10 eventually differs.

[0106] In one aspect, the adjustment screw can be configured to be connected to a driving motor, so that the user adjusts the spacing of the cylinder housings 10 by operating a switch.

[0107] As still another embodiment, although not shown, the cylinder housings 10 are composed of 2 to 10 pieces, so that the intervals between them can be adjusted, and for this purpose, a guide tray (not shown) on which the cylinder housings 10 are slidably placed, and a fixing screw coupled to one side of the guide tray so that the end portion thereof selectively presses the cylinder housings to restrict the position are composed, and by this structure, after the user moves each of the cylinder housings 10, the position is fixed by the fixing screw.

[0108] In one aspect, the present application is not limited to the embodiments described and can be used by changing the application site, and it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present application. Therefore, such modified examples or modified examples should belong to the scope of the patent claims of the present application.

Claims

1. A piston finger pressure device for spinal massage, characterized by, The device is composed of a cylinder housing, a piston, an upper housing, a balance spring and a driving part. The cylinder housing is composed of a chamber with an open top and an inner space for accommodating an air bag, and a cover plate shielding the top of the chamber and forming a slot in the width direction. The piston is composed of a lifting plate part located in the chamber and arranged to pass through the slot so as to be lifted by the air bag, and a pressure plate part extending to the upper part of the lifting plate part so as to press the spine on its upper surface when lifted. The upper housing is connected to the cylinder housing at one end to guide and support the pressure plate part of the piston. The upper housing has a guide surface which is a vertical extension of the edge of the access hole through which the pressure plate part passes, so that the pressure plate part is in sliding contact with the ground even in the fully lowered state. The balance spring is supported at one end by the cylinder housing or the upper housing and at the other end by one side of the piston, so as to exert a descending elastic force. The driving part is composed of a valve connected to the air bag to limit the supply and exhaust of air, a pump to generate air pressure, and a controller to control the valve and pump. The balance spring is hung at the lower center part of the side surface of the lifting plate part at one end, and is curved upward at both ends with the lower center part as the center, so as to be supported by the lower surface of the cover plate, thereby exerting a descending elastic force on the lifted piston. The balance spring is composed of an insertion slot with a size for the lifting plate part to pass through, a pair of elastic displacement parts with "U" shape arranged in front and back with the insertion slot as the center, and a connecting part connecting both ends of the pair of elastic displacement parts to form a closed curve. The balance spring is composed of one of a leaf spring or a steel wire spring formed by bending a steel wire.

2. The piston finger pressure device for spinal massage according to claim 1, characterized by The cylinder housing is composed of a main body with open sides and a chamber in the shape of a trapezoid with the width gradually increasing from the lower part to the upper part, and a cover plate arranged to cover the open top of the main body and forming an assembly hole for inserting the lifting plate part in the side surface. The cover plate forms a slot connected to the assembly hole for the lifting plate part to pass through.

3. The piston finger pressure device for spinal massage according to claim 1, characterized in that, The cylinder housing is in the shape of a barrel with an open top and forms 2-7 chambers divided by partitions in the interior. The cylinder housing is composed of a main body with open sides and a chamber in the shape of a trapezoid with the width gradually increasing from the lower part to the upper part, and a cover plate arranged on the open top of the main body and composed of assembly holes for inserting the piston in the side surface in the cross direction between adjacent chambers and slots connected to the assembly holes for the lifting plate to pass through.

4. The piston finger pressure device for spinal massage according to claim 1, characterized in that, The balance spring is composed of one of a leaf spring and a steel wire spring, and is composed of an insertion groove having a size for the pressurizing plate portion to be inserted therethrough, a pair of elastic displacement portions having a "U" shape arranged to the front and rear sides with the insertion groove as a center, and a connecting portion connecting both ends of the pair of elastic displacement portions so as to have a closed curve shape.

5. The piston finger pressure device for spinal massage according to claim 1, wherein The balance spring is composed of a plurality of coil springs, and one end of each of the coil springs is supported by one side of the lifting plate portion or the lowering plate portion, and the other end thereof is supported by the lower side of the chamber or the upper case so as to apply a lowering support force to the piston.

6. The piston finger pressure device for spinal massage according to claim 2, wherein The cylinder case is composed of a main body, a cover plate, and a rail, the main body forms a trapezoidal-shaped chamber having an open upper surface and two side surfaces, and a width gradually increases from a lower portion to an upper portion, the cover plate is provided to shield the open upper surface of the main body, and forms a slot having a width that is reduced with respect to the chamber in the width direction and through which the lifting plate portion is inserted and withdrawn, and the rail is provided to protrude at intervals from the lower surface of the cover plate, and both end portions of a "U"-shaped balance spring having a center portion curved in a concave shape are slidably inserted between the rails, so that the balance spring can move in a spring displacement direction and is prevented from moving in the width direction.

7. The piston finger pressure device for spinal massage according to claim 1, wherein The air bag is composed of an inflation bag portion and a reinforcing bag portion, the inflation bag portion is in contact with the lower surface of the lifting plate portion so as to apply an inflation force, and the reinforcing bag portion is connected to one side of the inflation bag portion by a folding structure so as to be connected to a nozzle for injecting air and exhausting air from the outside.

8. The piston finger pressure device for spinal massage according to claim 1, wherein The controller is composed of a pressure detection sensor for detecting an inflation pressure of the air bag, and an inflation control portion connected to the pressure detection sensor circuit so as to compare and determine a preset value, and thus applies a control signal to a pump and a valve so as to be maintained within a set value range.

9. The piston finger pressure device for spinal massage according to claim 1, wherein The lifting plate part is composed of a flat surface, a lower frame and a hook, the flat surface is flatly formed at the lower side to contact with the upper surface of the air bag, the lower frame is extended and formed with a thickness decreasing from the flat surface to the upper side, the hook is protruded and formed at the center lower part of the front and rear side of the lower frame to hook the center part of the balance spring, the pressurizing plate part has an enlarged volume at the upper part of the lower frame and is located at the upper part of the cover plate, the pressurizing plate part is composed of an upper frame, a cover and a finger pressure plate, the upper frame is formed with one or more than one guide rail in the direction perpendicular to the front and rear side to be slidably inserted into the guide groove formed corresponding to the upper shell, the upper frame is extended and formed from the upper part of the lower frame, the cover covers the outside of the upper frame, the upper surface of the cover is formed with a central part concave curved spine placement curve to place the spine of the human body, the finger pressure plate is formed with a plurality of finger pressure protrusions, the plurality of finger pressure protrusions are integrally protruded and arranged on the upper part of the cover by injection molding, thereby finger pressing the muscles on both sides of the spine.

10. The piston finger pressure device for spinal massage according to claim 9, characterized in that, The finger pressure protrusions are composed of any one or both of a vibration motor supplied with power to generate vibration or a warm heater supplied with power to generate heating effect.

11. The piston finger pressure device for spinal massage according to claim 1, characterized in that, The cylinder housing is composed of 2-7 to adjust the interval between each other, the cylinder housing is composed of a sliding tray and an adjusting bolt, the sliding tray guides the movement in the direction for adjusting the interval in the state of arranging the plurality of cylinder housings side by side, the adjusting bolt is inserted through one end of each cylinder housing by screw coupling and is screw coupled to each other with gradually increasing or decreasing interval with respect to each cylinder housing.

12. The piston finger pressure device for spinal massage according to claim 1, wherein The cylinder housing is composed of 2-10 to adjust the interval between each other, the cylinder housing is composed of a guide tray and a fixing screw, the guide tray slidably places the cylinder housing, the fixing screw is coupled at one side of the guide tray, so that the end part selectively pressurizes the cylinder housing, thereby limiting the position.

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