KR102485939B1 - Office massage chair with dual massage module - Google Patents

Abstract

The present invention relates to an office chair having a massage module buried in a backrest and, more specifically, to an office chair that comprises: a guide rail and a rack rail formed in a vertical direction to be spaced apart from each other in the backrest of the office chair; and a lumbar massage module and a cervical massage module separately disposed on the guide rail and the rack rail to be individually operated. Accordingly, the lumbar massage module and the cervical massage module are disposed together in the individual guide rail and the rack rail to provide excellent manufacturability and minimize an increase in manufacturing costs. The lumbar massage module and the cervical massage module that are disposed individually allow a fast and effective massage to be applied to a desired part of the body of a user and enable an effective massage with the best shape to be applied to the whole spine with different physical structures and curves, thereby greatly enhancing the massage efficiency. The cervical massage module can function as a neck pillow or a neck cushion when not in operation to give more reasonable action and a massage effect in terms of using the office chair.

Description

Office massage chair with dual massage module {Office massage chair with dual massage module}

The present invention relates to an office chair in which a massage module is embedded in a backrest, and more particularly, a lumbar massage module and a cervical spine massage module are separated and configured in a single unit elevating guider in the backrest frame of the office chair, and the lumbar massage module and the cervical spine As each massage module is configured to operate individually, in the process of using the office chair for work or study, the user can receive individual massage for the lumbar and cervical spine, which makes the office chair very convenient to use as well as providing massage It is about an office massage chair that can further improve the effect.

In general, massage is performed to help the muscles or blood circulation that are united by exercise and fatigue by tapping or rubbing the body with hands, and currently widely used massagers are mutually driven between the body part to be massaged and the massage balls and It is made up of various types depending on the pressurization method.

In particular, various types of chair massagers that massage a specific part of the body (neck, back, waist) while the user is sitting have been developed and used. However, since the structure of the massager is too complex and difficult, professional skills are required for repair and handling, so it is not easy to use, making users feel repulsive, and the complex structure is bulky and takes up a lot of installation space. It cannot be used for purposes other than a massage chair, making the interior space inefficient, and it is heavy, so it is difficult to move after installation.

Accordingly, as shown in Patent Registration No. 10-1374570, which has recently entered, a pair of shoulder massage units installed so as to be capable of arc motion on both corners of the backrest so as to move around the user's shoulder, and It includes a rotation unit, wherein the rotation unit includes a pair of normal and reverse drive motors respectively provided on the backrest, pinions respectively installed on the output shafts of the drive motors, and rack members and shoulders respectively installed on the shoulder massage unit so as to engage with the pinions. A functional chair having a configuration including a rotational frame rotatably installed on a backrest to support each allowable circular motion of a massage unit has been devised and registered.

In addition, in the case of Registered Patent No. 10-1152330, the back support is coupled to the rear of the chair seat and extends upward; A backrest fixed to the backrest support and having a plurality of operation holes zigzag on both sides in the front direction; A rotation axis fixed to the rear center of the backrest; Two rotating plates in which a plurality of combs are formed so as not to interfere with each other at the same position as each operating hole of the backrest in a direction facing each other so that each comb is rotatably fixed to the rotating shaft through a rotating sleeve; It is fixed on the opposite side of the comb teeth of each rotating sleeve and protrudes in the front direction of the backrest through each operating hole when each rotating plate rotates; Massage rollers rotatably fixed between operations; And a functional chair composed of armrests that are fixed to the side parts of each rotating plate and allow massage rollers to appear in front of the backrest according to an operation of opening them to the opposite side has been devised and registered.

Then, as in the case of Patent Publication No. 10-2020-0144928, the backrest and the massage machine inside. A skeleton supporting a person in the central part, a backrest located on the upper part of the body with a cushion for softly sitting on, and a massage machine capable of massaging the shoulder inside the upper part of the body, , A skeleton located in the center of the main body and supporting a person, a cushion for soft sitting, a length adjustment bar located in the center of the leg and adjustable in height, and located at the lower end of the leg and capable of rolling forward or backward. Includes wheels that can be According to a computer chair with a massage function, a computer chair with a massage function has been devised so that when the shoulders get together while working at a computer for a long time, a massage is performed immediately to relieve the stiff shoulders.

In addition, as in Patent Publication No. 10-2021-0015184, it is configured to include a massage unit movably installed on the backrest and a driving unit for moving the massage unit, and the driving unit is provided on a holder bracket installed on the backrest. It is characterized by a configuration comprising a drive motor capable of driving, a pinion installed on the output shaft of the drive motor, and a rack member installed on the holder bracket to support the massage unit and engage with the pinion to be movable with respect to the backrest, for study or office use. A user who sits on a chair for a long time can easily receive a massage on the nape of the neck while seated as needed, and in particular, can easily adjust the setting position of the massage unit in response to the height of the seated height according to the user's physical condition. Therefore, an office chair having the effect of increasing the convenience of use as well as the increase in learning efficiency and office efficiency has been devised.

However, various chairs as described above have a form in which a separately provided massager or massage device is embedded or embedded in the backrest of the chair, and if the electric massage module located inside the backrest is broken or malfunctions, In the case where the entire chair back body has to be disassembled or cannot be disassembled, the entire chair back body including the back support body cannot be used due to the mutual fastening structure.

In particular, most of the massage modules have massage balls on the front that move up and down. The convex massage balls feel foreign when the user sits down and leans against the backrest when the massage module is not in use. Since the protruding massage balls as described above will press the user's back or lumbar spine when the massage module is not used repeatedly and continuously, the massage module feels rather uncomfortable.

In addition, when the massage function is used by sitting on various chairs as described above, effective massage is not performed depending on the shape or position of the user. You will feel strong pressure on the part, and if you sit with your back tilted to the rear, the massage effect is reduced for the lumbar region, while the shoulder region receives relatively strong massage pressure. Flexibility and responsiveness according to user type or convenience It is true that this is absolutely lacking.

Accordingly, the applicant of the present invention is a back chair in which a seat plate and a backrest are combined on a lower leg having a radial support, as in Patent No. 10-2339033, and a massage module insertion part is formed on the front of the backrest, , The upper front side of the backrest body is configured by sealing the front end of the opening and closing sheet so as to cover the entire massage module insertion part, and the massage module insertion part is formed by inserting an electric massage module formed with a module frame coupled to the outside, As four driving motors connected to the electric massage module are mounted on the inside of the module frame,

When the electric massage module is not in use by individual or simultaneous operation of the drive motor, the angle of the backrest is adjusted by adjusting the angle of the module frame, and the entire electric massage module protrudes toward the user due to the operation of the drive motor. A chair with a backrest that can protrude upward and downward, protrude left and right, or protrude in a twisted form so that the massage pressure can be adjusted in a desired shape by the user has been devised and registered.

However, in the existing office chair having a massage module, including a chair with a backrest registered by the applicant of the present invention, the massage module located in the backrest repeatedly ascends and descends to the user's lumbar, thoracic and cervical spine to perform massage. Therefore, it has a problem that the massage effect is relatively low because the total round-trip time is very long, and since it does not effectively match the shape of the spine with flexion, it has a problem that the massage effect for each part is different.

That is, the massage module applied to the existing office chair moves up and down along the guide rail in the backrest so that limited massage is performed on the lumbar and thoracic spine along the user's spine, or the massage module is formed by extending the guide rail. It is made to reach the cervical vertebrae and massage is performed. If the massage module moves at a rapid speed, the massage efficiency will decrease and the massage module will rise and fall at a very low speed.

Accordingly, considerable time is consumed from the lumbar vertebrae to the thoracic and cervical vertebrae, so it takes a relatively long time to obtain a massage effect while taking a break while sitting in an office chair or to obtain a massage effect over the entire spine. Compared to the spine, which is usually bent in an "S" shape, the massage module located in the flat backrest does not effectively respond to the curvature of the spine, so relatively weak massage pressure is applied to the lumbar and cervical spine, while excessive pressure is applied to the thoracic spine. Some users complain of pain due to the massage pressure.

In addition, massage modules applied to office chairs do not have a massage function for the user's shoulders, unlike massage chairs for home use. Since the shoulder massager module must have a relatively large and wide shape, it is very difficult to individually accommodate each of them in the back of the chair, and a typical office chair has a lumbar massage module or a cervical massage module separately. There is an urgent need for an office chair for massaging both the lumbar and cervical vertebrae.

Korean Registered Patent No. 10-1374570 (2014.03.10. Registration) Korean Registered Patent No. 10-1152330 (registered on May 25, 2012) Korean Patent Publication No. 10-2020-0144928 (2020.12.30. Publication) Korean Registered Patent No. 10-2021-0015184 (2021.02.10. Publication) Korean Registered Patent No. 10-2339033 (2021.12.09. Registration)

The present invention has improved the problems as described above, and a lumbar massage module and a cervical massage module in which guide rails and recrails spaced apart from each other are formed in the vertical direction in the backrest of an office chair, and these guide rails and recrails are individually operated. As each is configured separately,

The user can individually or simultaneously massage the lumbar and thoracic spine with the lumbar massage module or the cervical spine and shoulder with the cervical massage module to obtain a faster and more efficient massage effect as needed. It is an object of the present invention to provide an office massage chair equipped with a dual massage module so that a user can accurately and effectively massage a desired area through an individually driven lumbar massage module and a cervical massage module.

In order to achieve the above object, the present invention is provided with a seat plate on a lower body having a radial support angle, and consists of armrests on both sides of the seat board and a backrest on the rear side of the seat board. In the office massage chair with a built-in massage module to enable,

Guide rails and rails spaced apart from each other in the transverse direction are vertically formed on the back plate in the frame of the backrest, and the guide rails and the rails are located at the lower part and ascend and descend along these guide rails and rails. Lumbar massage module and upper part The cervical massage module, which is located on the lumbar spine and moves up and down along these guide rails and rails, is mounted, but the lumbar massage module is located in the cover of the backrest and moves up and down within the range of the lumbar and thoracic spine of the user, and the cervical massage module The module is located on the outside of the cover of the backrest and moves up and down within the range of the user's cervical vertebrae so as to massage the cervical vertebrae and shoulders.

In the present invention, since the lumbar massage module and the cervical massage module are provided together in the guide rail and the rail of a single object, not only the manufacturability is excellent, but also the increase in manufacturing cost can be minimized, and the individually provided lumbar massage module and Due to the cervical massage module, fast and effective massage can be performed for the body part desired by the user, and effective massage with the best form is achieved through individually separated massage modules for the entire spine with different physical structures and curves. Therefore, the massage efficiency can be further improved, and the cervical massage module can also serve as a neck pillow or neck cushion when not in operation, so that a more rational action and massage effect can be obtained in using an office chair.

1 is an overall perspective view of an office chair according to the present invention
Figure 2 is a front view of a state in which the cover of the back of the office chair is removed according to the present invention
Figure 3 is an enlarged view of the configuration of the back massage module of the office chair according to the present invention
Figure 4 is an enlarged view of the cervical spine massage module of the office chair according to the present invention
Figure 5 is an enlarged plan view of the cervical spine massage module of the office chair according to the present invention
Figure 6 is an enlarged view of the cervical massage module connection support of the office chair according to the present invention
Figure 7 is another embodiment of the cervical massage module connection support of the office chair according to the present invention

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention may make various changes and may have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

In addition, when a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. It should be understood that there is On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Then, terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In addition, terms such as "...unit", "...unit", and "...module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view of an office chair according to the present invention, and FIG. 2 is a front view of the office chair according to the present invention with the back cover removed.

As shown in the figure, the office chair according to the present invention is an improved invention for the existing office chair with a built-in massage module, and the seat 20 is on the lower body 10 having radial support angles 11 and 11'. It is provided and consists of armrests 30 and 30' on both sides of the seat plate 20 and a backrest 40 on the rear side of the seat plate 20, and a massage module is built into the backrest 40 so as to be able to move up and down. It is applied to office chairs in the form of

At this time, the lower body 10 is free to move by the radial support angles 11 and 11', and at the same time, a cylinder is mounted so that the seat plate 20 and the backrest 40 can be adjusted in height. , The seat plate 20 may be additionally provided with a separately provided massage module and a heat wire, and the armrests 30 and 30' can be adjusted in height and outward through the application of a rotation structure and an elevating structure. It may be configured so that the deployment takes place.

In addition, the backrest 40 may be configured to be tilted at various angles by a separate locking device located below the seat plate 20 or maintained in a tilted state, and the office chair of the present invention is as described above. It can be applied to almost all types of general office chairs with various structures or functions.

Therefore, in the present invention, in the office chair as described above, vertical guide rails 42 and rails 43 spaced apart from each other in the transverse direction are vertically formed in the frame 41 of the backrest 40, and the guide The rail 42 and the recrail 43 are located at the lower part and the lumbar massage module 100, which moves up and down along these guide rails 42 and the recrail 43, and the upper part of the guide rail 42 and the recrail It is configured by mounting each cervical massage module 200 that goes up and down along the work 43.

Here, the backrest frame 41 is made by bending a metal tube or a metal rod to complete the shape of the backrest 40, and various cushioning materials may be applied together. ) is positioned to support the user's weight and load together with the frame 41.

In addition, the guide rail 42 and the rail rail 43 spaced apart in the transverse direction from the back plate 45 are fixed in the vertical direction to the front surface of the back plate 45, and the lumbar massage module 100 It serves to guide and lift the cervical spine massage module 200, and the guide rail 42 on one side allows the lumbar massage module 100 and the cervical spine massage module 200 to be lifted stably without movement. , The rail 43 on the other side is gear-coupled with the drive unit of the lumbar massage module 100 and the cervical massage module 200 so that it can move with accurate speed and distance through power transmission.

At this time, the lumbar massage module 100 is located in the covering body 44 of the backrest 40 and is operated by moving up and down within the range of the lumbar and thoracic vertebrae of the user. It is located on the outside of the cover body 44 and is configured to move up and down within the range of the user's cervical vertebrae to massage the cervical spine and shoulders. Since the lumbar massage module 100 is located inside the cover body 44, it is not exposed in appearance. In addition to the original massage function, the cervical massage module 200 is located outside the cover body 44 and moves up and down in the cover body 44 to perform massage on the user's lumbar and thoracic spine. Or, to serve as a neck cushion, the cervical massage module 200 combined with the guide rail 42 and the recrail 43 is lifted from the outside of the cover 44 on the upper part of the cover 44. It will be natural that a vertical incision (not shown in the drawing) is formed so as to be able to do so.

Accordingly, the office chair of the present invention can perform simultaneous massage of the lumbar spine, thoracic spine, cervical spine and shoulders due to the lumbar massage module 100 and the cervical spine massage module 200, respectively, and through their individual operation, the pillow Alternatively, it can be operated so that only the lumbar and thoracic spine massage is performed while the neck cushion is provided, or only the cervical spine and shoulder are partially massaged, so that a massage effect can be obtained much faster and more efficiently than conventional massage chairs. It can.

Here, the lumbar massage module 100; The lifting actuator 110, one side of which is inserted and locked into the guide rail 42 and the other side gear-coupled to the rail 43 by the pinion gear, and the massage ball 120 rotated from the front of the lifting actuator 110 ( 120') and is lifted inside the backrest covering body 44, and this massage module is the same as the conventional massage module. The rotation of the motor and the pinion gear connected to the drive motor rotate in engagement with the rail 43 to raise or lower the lifting actuator 110, and the massage balls 120 and 120' are electrically operated. It rotates in conjunction with one driving motor or is connected to a separate operating motor and is repeatedly rotated by a power source. This is a massage for the thoracic spine.

In addition, the cervical spine massage module 200; A lifting actuator 210, one side of which is inserted into and locked into the guide rail 42 and the other side gear-coupled to the rail 43 by a pinion gear, and a neck lift 220 coupled to the front of the lifting actuator 210, It consists of a pair of massage balls 230 and 230' mounted on the front of the neck lift 220 and rotated, and the neck lift 220 and the massage balls 230 and 230' are separately provided. It is configured to be elevated from the outside of the backrest cover 44 in a state of being wrapped by the cover 240.

That is, the cervical massage module 200 is also similar to the conventional massage module, and the cervical massage module (200 ) The whole is lifted up and down along the guide rail 42 and the rail 43, and the rotation of the massage balls 230 and 230' linked to the driving motor or connected to a separate operating motor Massage for the cervical vertebrae and shoulders is performed, and the cervical massage module 200 in the present invention has the massage balls 230 and 230' located on the front of the separately provided neck lift 220, The lift actuator 210 and the neck lift 220 are coupled to each other through a separate connection support 250.

In particular, the massage balls 230 and 230' have a relatively large and wide separation distance compared to the massage balls 120 and 120' of the lumbar massage module 100, and the cervical massage module in this form Sufficient massage effect can be obtained up to the shoulders including the entire nape of the user through the rotation and elevation driving of the massage heads 230 and 230' of the 200.

In addition, a separate cover 240 is wrapped around the entire neck lift 220 including the massage balls 230 and 230', and cervical massage that moves up and down from the front outer side of the backrest cover 44 Due to the structural characteristics of the module 200, the covering body 240 prevents the internal components of the cervical spine massage module 200 from being exposed, and at the same time uses the same natural or artificial leather or fabric as the backrest covering body 44. By doing so, it is possible to achieve a beautiful appearance of the neck lifting device 220 due to the covering body 240, while maintaining both decorativeness and luxury, and more directly, the massage balls 230 and 230' are directly By preventing contact with the human body, it is possible to prevent pain caused by direct contact with each other or slipping or wrinkles of clothes.

Subsequently, the separately provided connection support 250 inserted between the lift actuator 210 and the neck lift 220 of the aforementioned cervical spine massage module 200 has the lift actuator 210 and the neck lift 220 It is to be connected and fixed to each other and at the same time to give a predetermined elasticity to the neck lift 220 to obtain a massage effect in a more comfortable and comfortable state. As shown in FIG. 6, the connecting support 250 is a rectangular It is made of an elastic panel body 251, and a fastening protrusion 252 for fastening with the lifting actuator 210 is formed at the center of the rear surface of the elastic panel body 251, and both sides of the front surface of the elastic panel unit 251 It is configured by protruding the fixing post 253 (253 ') for fastening with the neck hoisting sphere 220.

That is, the elastic panel body 251 of the connection support 250 attaches the fastening protrusion 252 formed on the rear surface to the front surface of the lifting actuator 210 and mutually bolts, and the fixing post of the elastic panel body 251 ( 253) (253') is configured so that the rear side of the neck lift 220 is coupled to each other by bolts, so that the pressing force acting on the neck lift 220 moves through the elastic panel body 251 to the lift actuator 210 will have a structure passed to it.

In addition, in the connection support 250, since the backrest 40 is located inside the cover 44, only the incision line for the fixing posts 253 and 253' to move up and down is formed in the cover 44 of the backrest. It will be.

Therefore, in the cervical spine massage module 100, the massage balls 230 and 230' rotate at the same time as the neck lift 220 moves up and down to massage the user's cervical vertebrae and shoulders. Such a massage process The pressing force by the user's load acting on is transmitted to the connection support 250 through the massage balls 230, 230' and the neck lift 220, and the connection support 250 has a fastening protrusion at the center of the rear surface ( 252) has a form coupled to the lifting actuator 210, and eventually, both sides of the elastic panel body 251 except for the fastening protrusion 252 will be elastically deformed to the rear side and retreated, such an elastic panel The resilient retreating action of the body 251 plays a role of buffering the pressing force by the user and at the same time preventing excessive force from being transmitted to the back of the head, cervical vertebrae or shoulders of the user.

Accordingly, the connection support 250 serves to elevate the cervical massage module 200 in a protruding state from the outside of the cover 44 of the backrest 40, and at the same time the load acting on the cervical massage module 200 And it will show elastic elasticity according to the pressing force, and will provide an effect of producing an excellent cushioning action and a softer and more rhythmic massage action.

In addition, the connection support 250 is located on both sides of the front side of the elastic panel body 251, as shown in FIG. 7, and the fixing posts 253 and 253' coupled to the neck lift 220, the elastic panel body By configuring to be coupled by the ball joints 254 and 254' from 251, the neck lifter 220 can be twisted by the pressing force acting on the neck lifter 220, and the elastic panel body 251 ) When a load or pressing force acts on the neck lift 220 due to the flexibility of the fixed post 253, 253' by the ball joint 254, 245' along with its own elasticity, the neck lift 220 ) produces a twisting action due to the individual fluidity of the fixing posts 253 and 253' together with the buffering and elasticity by the elastic panel body 251, so that eventually a uniform response to the physical characteristics, movement or resistance of each user The massage effect can be further improved because the massage is performed not only with pressure but also in the most effective state of close contact with the user's body.

Therefore, the office massage chair of the present invention can quickly massage a desired area by the user by the lumbar massage module 100 and the cervical massage module 200 individually located on the backrest 40, as well as cervical massage in the form of an external protrusion The module 200 serves as a neck pillow or neck cushion and at the same time provides a flexible and efficient massage for the curved cervical vertebrae and shoulders, so that the massage effect can be further improved.

The embodiments described in this specification and the configurations shown in the drawings as described above are merely the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, so various equivalents and modifications that can replace them It should be understood that there may be examples.

10: lower body 11,11 ': support angle
20: Seat
30,30' : armrest
40: backrest 41: frame
42: guide rail 43: rail rail
44: covering body 45: backing plate
100: lumbar massage module
110: lifting mechanism
120,120': massage ball
200: cervical massage module
210: lifting mechanism
220: neck lift
230,230': massage ball
240: covered body
250: connection support 251: elastic panel body
252: fastening protrusion 253,253': fixed post
254,254' : ball joint

Claims (4)

The seat plate 20 is provided on the lower body 10 having radial support angles 11 and 11', and the armrests 30 and 30' on both sides of the seat plate 20 and the rear upper part of the seat plate 20 It is made of a backrest 40, and a guide rail 42 and a recrail 43 spaced apart from each other in the transverse direction are vertically formed on the back plate 45 in the frame 41 of the backrest 40, and the guide The rail 42 and the recrail 43 are located at the lower part and the lumbar massage module 100, which moves up and down along these guide rails 42 and the recrail 43, and the upper part of the guide rail 42 and the recrail It is configured by mounting each cervical massage module 200 that ascends and descends along the work 43, and the lumbar massage module 100 is located within the covering body 44 of the backrest 40 and is within the range of the lumbar and thoracic vertebrae of the user. Raise and operate,
The lumbar massage module 100; The lifting actuator 110, one side of which is inserted and locked into the guide rail 42 and the other side gear-coupled to the rail 43 by the pinion gear, and the massage ball 120 rotated from the front of the lifting actuator 110 ( 120') and is configured to be lifted from the inside of the backrest cover body 44, and the cervical spine massage module 200; A lifting actuator 210, one side of which is inserted into and locked into the guide rail 42 and the other side gear-coupled to the rail 43 by a pinion gear, and a neck lift 220 coupled to the front of the lifting actuator 210, It consists of a pair of massage balls 230 and 230' mounted on the front of the neck lift 220 and rotated, and the neck lift 220 and the massage balls 230 and 230' are separately provided. In the office massage chair configured to be lifted from the outside of the backrest cover 44 in a state wrapped by the cover 240,
A separate connection support 250 is inserted and formed between the lifting actuator 210 and the neck lift 220 of the cervical spine massage module 200, and the lifting actuator 210 and the neck through the connection support 250. The hoistway 220 is configured to be connected and fixed to each other in a spaced state,
At the center of the rear surface of the elastic panel body 251, a fastening protrusion 252 for fastening with the lifting actuator 210 is formed, and on both sides of the front surface of the elastic panel body 251, a fixing for fastening with the neck lifting device 220 is formed. The posts 253 and 253' are protruded, and the fixing posts 253 and 253' are coupled from the elastic panel body 251 by the ball joints 254 and 254', so that the elastic panel body ( An office massage chair equipped with a dual massage module, characterized in that the neck lift 220 is configured to flow from the pressing force due to the individual flexibility of the fixing posts 253 and 253' relative to 251).
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