KR20200079779A - Seat back angle adjusting of chair having massage - Google Patents

Abstract

The present invention relates to an angle adjustment structure of a backrest of a chair to which a massage function is provided to provide a massage function to the backrest of an office chair and to adjust the angle of the backrest by the operation of a cylinder. To the seat plate support, which is rotatably connected to the seat plate support to support the backrest, a massager provided inside the front of the backrest to massage a user's body part, and to the lower and backrest supports of the seat plate. Connected to the cylinder to adjust the angle of the backrest, the cylinder is connected to the control bar for controlling the operation of the cylinder, the seat plate and the stopper part connected to the backrest support, and provided on both sides of the seatboard support connected to the backrest support It includes a guide portion for guiding the armrest.

Description

Angle adjustment structure of backrest of a chair with massage function{SEAT BACK ANGLE ADJUSTING OF CHAIR HAVING MASSAGE}

The present invention relates to an angle adjustment structure for a backrest of a chair with a massage function, and more particularly, a chair with a massage function that provides a massage function to the backrest of an office chair and gently adjusts the angle of the backrest by the operation of a cylinder. It relates to the angle adjustment structure of the backrest.

In general, a chair is provided with a seat plate supporting a user's buttocks, a back plate installed at the rear of the seat plate to support the user's waist and back, a leg installed to allow height adjustment under the seat plate, and both sides of the seat plate. It is installed on the armrest supporting the user's arm, and is made of a large angle control device for adjusting the angle of the seat plate and the back plate.

At this time, the angle adjustment device is provided with a height adjustment lever, an angle adjustment lever and a locking member.

Accordingly, the user can appropriately adjust the height of the seat plate by operating the height adjustment lever, and when the angle adjustment lever is operated, the locking member is locked or released so that the user can appropriately adjust the angle of the backboard.

These devices are generally designed to lie down or stand up (restore) using the spring's elasticity.

However, when using the elasticity of the spring as in the case of the prior art, when the backrest is laid down, there is not much difficulty, but when it is erected, a sudden and strong force acts on the backrest by the restoring force of the spring.

Therefore, the user has the inconvenience of paying attention to the impact due to the sudden restoration of the backrest. In addition, there is a problem in that it is difficult to adjust the backrest at an angle desired by the user due to the sudden restoration of the backrest.

In addition, the conventional chair has a problem in that when a user sits in the chair for a long time, only the function of sitting by the user is given.

Republic of Korea Utility Model Publication No. 20-0382313

Therefore, the present invention has been devised to solve the above-mentioned problems, and its purpose is to increase the efficiency of the product and maximize the convenience to the user by diversifying functions by allowing the user to slowly adjust the angle of the backrest together with the massage function. It is possible to provide an angle adjustment structure for a backrest of a chair to which a massage function capable of being provided is provided.

In order to achieve the above object, the angle adjustment structure of a backrest of a chair to which a massage function is provided according to an embodiment of the present invention is connected to a seat plate at an upper portion of a leg, and a seat plate stand connected to a lower portion of the seat plate and rotatable on the seat plate stand It is connected to the backrest support to support the backrest, a massager provided inside the front of the backrest to massage a user's body part, a cylinder to adjust the angle of the backrest connected to the bottom of the seat plate and the backrest support, and the cylinder It may be connected to the control bar for controlling the operation of the cylinder, a stopper portion connected to the seat plate and the backrest base, and a guide portion provided on both sides of the seat plate support to guide the armrest connected to the backrest support.

The stopper portion may include a connecting rod provided vertically on the lower portion of the seat plate, and a stopper connected to the connecting rod and the backrest base.

The stopper has a fitting groove formed to be connected to the lower side of the connecting rod with a bolt and a nut, and a rotating piece may be provided at the end to be connected with a bolt and a nut to the lower portion of the backrest base.

The fitting groove may be formed in an elliptical shape to the left or right to adjust the connection position of the bolt to adjust the spacing of the backrest.

The rotating piece may be formed in a donut shape so that the backrest stand can be rotated smoothly according to the operation of the cylinder when connected to the lower part of the backrest stand.

The guide portion may include a guide member provided on the side of the seat plate support, a guide groove formed therein, and a guide bar provided inside the lower end of the armrest and fitted into the guide groove and guided along the guide groove according to the rotation of the backrest support.

The guide member may be formed in a'b' form to stably support the guide bar being guided by being fitted into the guide groove.

The guide groove may be formed in an elliptical shape to the left and right to guide the guide bar smoothly when the backrest is rotated.

The massager includes a cover frame forming first and second openings parallel to each other and forming an outer shape, and a pair of first massagers accommodated in the cover frame and protruding through each of the first and second openings. It includes a first massage module that massages the neck area, a pair of second massage parts that are stored at a lower position than the first massage module in the cover frame and protrude through each of the first and second openings, and A second massage module for massage, and a guide rail for receiving the inside of the cover frame and connected to the first and second openings in parallel to move the first and second massage modules vertically.

As described above, according to the angle adjustment structure of the backrest of a chair with a massage function according to the present invention, the angle of the backrest can be adjusted according to the operation of the cylinder and supported by the stopper part by being connected to the backrest support under the seatboard support of the seat. In addition, by providing a massager capable of massaging the neck and back of the user on the backrest, it is possible to maximize comfort and product efficiency for the user.

1 is a perspective view showing a backrest massage and an angle-adjustable chair according to the present invention.
Figure 2 is a side view showing a backrest massage and angle-adjustable chair according to the present invention.
Figure 3 is a bottom view showing a chair with a backrest massage and angle adjustment according to the present invention.
Figure 4 is a bottom perspective view showing a chair with a backrest massage and angle control according to the present invention.
Figure 5 is an enlarged view showing the angle adjustment of the backrest massage and angle-adjustable chair according to the present invention.
Figure 6 is a side view showing a state in which the backrest of the chair and the angle-adjustable chair according to the present invention is tilted.
7 is a bottom perspective view showing a state in which the backrest of the backrest massager and the angle-adjustable chair according to the present invention is retracted.
8 is a bottom view showing a state in which the backrest of the backrest massager and the angle-adjustable chair according to the present invention is tilted.
9 is a front view showing a massage of a backrest massage and an angle-adjustable chair according to the present invention.
FIG. 10 is a front view showing the inside of the massager according to FIG. 9 with the cover frame removed.
11 is a front view showing the internal configuration of the first massage module according to FIG.
12 is a front view showing the internal configuration of the second massage module according to FIG.
13 is a perspective view showing a second massage part of the second massage module according to FIG. 12.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, the embodiments of the present invention are not limited to the specific form shown and are exaggerated for clarity. Although specific terms are used in this specification, they are used for the purpose of describing the present invention, and are not used to limit the scope of the present invention described in the meaning limitation or the claims.

In this specification, the expression'and/or' is used to mean including at least one of the components listed before and after. Also, the expression'connected/combined' is used to mean that it is directly connected to another component or indirectly connected through another component. In the present specification, the singular form includes the plural form unless otherwise specified in the phrase. Also, components, steps, operations and elements referred to as'comprises' or'comprising' as used in the specification mean the presence or addition of one or more other components, steps, operations and elements.

In addition, expressions such as'first and second' are expressions used only to distinguish a plurality of components, and do not limit the order or other features between components.

In the description of the embodiments, each layer (membrane), region, pattern or structure may be "on/on" or "under/under" the substrate, each side (membrane), region, pad or pattern. The term "formed on" includes both those formed directly or via another layer. The standards for the top/bottom/bottom/bottom of each layer are described based on the drawings.

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

1 is a perspective view showing a backrest massage and an angle-adjustable chair according to the present invention, FIG. 2 is a side view showing a backrest massage and an angle-adjustable chair according to the present invention, and FIG. 3 is a backrest massage according to the present invention and It is a bottom view showing an angle-adjustable chair, and FIG. 4 is a bottom perspective view showing a backrest massage and an angle-adjustable chair according to the present invention, and FIG. 5 is an angle adjustment of a backrest massage and an angle-adjustable chair according to the present invention 6 is a side view showing a state in which the backrest of the backrest massager and the angle-adjustable chair according to the present invention is retracted, and FIG. 7 is the backrest of the backrest massager and the angle-adjustable chair according to the present invention. 8 is a bottom perspective view showing the reclined state, FIG. 8 is a bottom view showing the reclining state of a backrest massage and an angle-adjustable chair according to the present invention, and FIG. 9 is an adjustable backrest massage and angle according to the present invention Fig. 10 is a front view showing the massager of the chair, Fig. 10 is a front view showing the interior with the cover frame of the massager according to Fig. 9, and Fig. 11 is a front view showing the internal structure of the first massage module according to Fig. 9, and 12 is a front view showing the internal configuration of the second massage module according to Figure 9, Figure 13 is a perspective view showing a second massage module of the second massage module according to FIG.

1 to 13, the angle adjustment structure of the backrest provided with a massage function according to the present invention includes a seat plate support 100, a back support support 200, a cylinder 310, and an adjustment bar 320. Wow, the stopper portion 330, the guide portion 400, and includes a massager 500.

The seat plate support 100 is connected to the lower portion of the seat plate 10 to connect the seat plate 10 connected to the upper portion of the leg (30).

The backrest pedestal 200 supports the backrest 20 and is rotatably connected to the side of the seat pedestal 100.

In addition, the backrest base 200 is connected to the seat base 100 and the hinge (h), the lower end is connected to the cylinder 310 and the stopper portion 330.

The cylinder 310 is connected to the lower portion of the seat plate 10 and the backrest pedestal 200 so that the angle of the backrest 20 can be adjusted.

In addition, one side of the cylinder 310 is connected to the connecting piece 340 provided on the lower portion of the seat plate 10, and the other side is connected to the end of the backrest base 200 with a bolt (B) and a nut (N). It becomes.

That is, by connecting the cylinder 310 to the seat plate 10 and the backrest support 200, the backrest 20 is gradually bent and folded by the cylinder 310, thereby reducing the impact of the body to promote safety and to be desired by the user. It is possible to smoothly adjust the backrest 20 at an angle.

The adjustment bar 320 is connected to the cylinder 310 to the connecting piece 340 to control the operation of the cylinder 310.

The stopper part 330 is connected to the backrest stand 200 and the seat plate 10 to support the backrest 20 whose angle is adjusted.

3 and 5, the stopper part 330 includes a connecting stand 331 and a stopper 332.

The connecting rod 331 is vertically provided on the lower portion of the seat plate 10 to be provided.

The stopper 332 is connected to the connecting rod 331 and the backrest support 200 by bolts (B) and nuts (N).

In addition, the stopper 332 is formed with a fitting groove 331a connected to the connecting rod 331 and the bolt (B) and the nut (N), and the bolt (B) and the nut (N) on the backrest support (200) Donut-shaped rotating piece 331b is provided to be connected to and rotated.

In addition, the fitting groove 331a is formed in an elliptical shape to the left and right so that the backrest 20 can be rotated smoothly while being connected to the connecting rod 331 with a bolt (B) and a nut (N).

That is, the stopper part 330 is connected to the seat plate 10 and the backrest base 200, and the stopper 332 is fitted into a connecting rod 331 with a bolt (B) and a nut (N), so that a fitting groove (331a) is connected. The rotation piece 331b formed in this oval shape and connected to the backrest stand 200 is formed in a donut shape to stably support the backrest 20 when the angle of the backrest 20 is adjusted according to the operation of the cylinder 310. And can be rotated smoothly.

The guide part 400 is provided on the seat base 100 and the armrest 40 so that the armrest 40 can be guided stably when the backrest 20 is rotated.

The guide part 400 is provided on each of the seat plate support 100 and the armrest 40, respectively.

In addition, the guide part 400 includes a guide member 410 and a guide bar 420 provided on the armrest 40.

The guide member 410 is provided on the lower side of the seat base (100).

In addition, the guide member 410 is formed with a guide groove 411 formed of an oval shape elongated left and right.

In addition, the guide member 410 supports the guide bar 420 to be fitted in the guide groove 411, so that the guide bar 420 is stably guided.

In addition, the guide member 410 can be fixed to the seat plate support 100 by welding or fastened with a piece.

The guide bar 420 is provided at the lower end of the armrest 40 and is fitted into the guide groove 411 to be guided along the guide groove 411 according to the angle adjustment of the backrest support 200.

The massager 500 is provided on the front of the backrest 20 to massage the user's neck and back.

In addition, the massager 500 is made of an outer shape that matches the shape of the back of the body.

9 to 13, the massager 500 includes a cover frame 510, a first massage module 530, a second massage module 540, a guide rail 550, and a control unit 560. It will include.

The cover frame 510 is provided inside the backrest 20 to form an external shape of the massager 500, and is covered with a buffer, leather, or the like to complete the backrest 20.

In the center portion of the cover frame 510, first and second openings 511 and 512 are formed parallel to each other in the vertical direction.

The first and second openings 511 and 512 are formed to correspond to muscles arranged on both sides along the spinal line at the back of the body, respectively.

In addition, the left and right directions of the first and second openings 511 and 512 are blocked by the cover frame 510, but the up and down directions are extended to open.

Meanwhile, a storage space is formed inside the cover frame 510, and the first and second massage modules 530 and 540 and the guide rail 550, which will be described later, are accommodated in the storage space.

In this case, a fixed frame 520 is provided inside the cover frame 510 as shown in FIG. 6, and the first and second massage modules 530 and 540 and the guide rail 550 are the fixed frame 520. It is fixed to.

The fixing frame 520 is formed with a first damping portion 521 at the top, and a third damping portion 522 is formed at the bottom.

The first and third attenuation portions 521 and 522 contact the first sensor portion 537 of the first massage module 530 and the third sensor portion 548 of the second massage module 540, respectively. It is possible to stop the movement of the first and second massage modules 530 and 540 by alleviating the contact shock upon contact and sensing the contact upon contact.

The first massage module 530 and the second massage module 540 are accommodated in a storage space inside the cover frame 510, and the first massage module 530 is greater than the second massage module 540. It will be located at the top.

That is, the first massage module 530 is positioned above the second massage module 540 to massage the user's neck, and the second massage module 540 is lower than the first massage module 530. It is located in the massage of the user's back.

9 to 11, the first massage module 530 includes a first base frame 531, a first massage unit 532, a first driving unit 533, and a second driving unit 534. And, it includes a first drive transmission unit 535, the second drive transmission unit 536, the first sensor unit 537, and the second damping unit 538.

The first base frame 531 is formed in a plate shape inside the cover frame 510 to constitute a basic body of the first massage module 530, and a first driving part 533 and a second driving part 534 to be described later. ), the first massage unit 532, the first driving transmission unit 535 and the second driving transmission unit 536 are assembled.

Then, as the first base frame 531 moves in the up and down directions, the first massage part 532 also moves at the same time to perform massage at a required position.

The first massage portion 532 is provided on both sides of the front of the first base frame 531, the first rotating plate 532a, and the first and second openings 511 and 512 on the respective first rotating plate 532a It is made of a first massage ball (532b) provided to protrude through each.

At this time, the first massage ball 532b is provided on the first rotating plate 532a, but is provided by being biased to one side rather than at the center of the first rotating plate 532a to widen the massage area.

That is, the first massage ball (532b) is provided by being biased to one side of the first rotating plate (532a) is not rotated at a certain position when the first massage ball (532b) is rotated according to the rotation of the first rotating plate (532a) It is rotated in a circular motion without being able to massage a large area of the user's neck.

The first driving part 533 is disposed and assembled on the first base frame 531 and generates a driving force capable of driving the first massage part 532.

The first driving transmission unit 535 is disposed and assembled on the first base frame 531 and transmits the driving force generated by the first driving unit 533 to the first massage unit 532.

At this time, the first driving part 533 is made of a driving motor, and the first driving transmission part 535 can be made of a combination of gears.

That is, since the driving force generated by the first driving part 533 is transmitted to the first massage part 532 equally, the pair of first massage parts 532 move symmetrically with each other with the same driving force to massage the body. It becomes possible.

The second driving unit 534 is disposed and assembled on the first base frame 531, and generates a driving force capable of moving the first massage module 530 in the up and down directions.

The second drive transmission part 536 is disposed and assembled on the first base frame 531 and transmits the driving force generated by the second drive part 534 to the guide rail 550.

Accordingly, the first massage module 530 may move up and down along the guide rail 550 to be positioned at a position suitable for a user's body structure.

At this time, the second driving unit 534 is made of a driving motor, and the second driving transmission unit 536 can be made of a combination of gears.

In this case, the second driving unit 534 is arranged in a direction oblique to the movement direction of the first massage module 530, that is, inclined in the movement direction, the guide rail 550 from the second driving unit 534 The distance between them can be narrowed, so that the number of gears used in the second drive transmission unit 536 can be reduced, and as a result, the second drive transmission unit 534 is transferred to the second drive transmission unit 536. The loss of driving force is reduced.

The first sensor unit 537 is provided on the upper surface of the first base frame 531 so as to contact each other with the position of the first damping unit 521, the first massage module 530 moves too much in the upper direction It is sensed not to be.

That is, when the first sensor unit 537 comes into contact with the first damping unit 521, the first damping unit 521 alleviates contact shock and senses the position of the first massage module 530. The operation is stopped so that the first massage module 530 no longer moves upward.

In this case, the contact sensing may be achieved by, for example, a method of inducing the current of the first sensor unit 537 to flow through the first attenuation unit 521 to a separate control determination unit (not shown). do.

The second attenuator 538 is provided on the lower surface of the first base frame 531, and when the first massage module 530 and the second massage module 540 move in the up and down directions and contact each other , It is possible to prevent the damage of the first and second massage modules (530,540) by preventing the impact of the contact.

In addition, the second damping unit 538 is in contact with the second sensor unit 547 formed at a position in contact with the second damping unit 538 on the upper surface of the second massage module 540, the first and second It is possible to sense that the massage modules 530 and 540 contact each other.

In addition, in order to improve the shock absorbing force of the contact, the second damping portion 438 may be formed of a spring having elastic force.

That is, when the first and second massage modules 530 and 540 are sensed as being in contact with the second attenuator 538 and the second sensor unit 547, the first and second massage modules 530 and 540 Each is controlled to stop moving in the up and down directions or to move only in opposite directions.

9 to 10 and 12 to 13, the second massage module 540 includes a second base frame 541, a second massage unit 542, a third driving unit 543, The fourth driving unit 544, the third driving transmission unit 545, the fourth driving transmission unit 546, the second sensor unit 547, and the third sensor unit 548 are included.

The second base frame 541 is formed in a plate shape inside the cover frame 510 to constitute a basic body of the second massage module 540, and a third driving part 543 and a fourth driving part (described later) 544), the second massage unit 542, the third driving transmission unit 545, and the fourth driving transmission unit 546 are assembled.

In addition, as the second base frame 541 moves in the up and down directions, the second massage part 540 also moves at the same time to perform massage at a required position.

The second massage portion 542 is provided with a pair on each side of the front of the second base frame 541, and protrudes through the first and second openings 511 and 512, respectively, and the first and second openings 511 and 512 ).

13, the second massage part 542 includes a connector 542a provided at the front of the second base frame 541, a second rotating plate 542b connected to the connector 542a, and the It is connected to the front of the second rotating plate 542b and includes a second massage ball 542c that massages the user's body while being rotated.

The connector 542a is provided so that the top surface is inclined (S).

The second rotating plate (542b) is in close contact with the inclined (S) surface of the connector (542a) to be inclined without being parallel to the top surface of the second base frame 541 to form an angle.

That is, the second rotating plate 542b is disposed while forming an angle with the second base frame 541 while being in close contact with the inclined (S) surface of the connector 542a, according to the driving of the third driving unit 543 ( 542b) is rotated in an inclined state.

The second massage ball 542c is connected to a plurality of both sides of the upper portion of the second rotating plate 542b so as to move according to the rotation of the second rotating plate 542b, it is possible to massage the user's back.

In addition, when the second massage balls 542c on both sides are rotated by the rotation of the second rotating plate 542b, the projecting ranges are different, so that the force transmitted to the body is continuously changed to increase the massage efficiency.

The third driving unit 543 is disposed and assembled on the second base frame 541, and generates a driving force capable of driving the second massage unit 542.

The third driving transmission unit 545 is disposed and assembled on the second base frame 541 and transmits the driving force generated by the third driving unit 543 to the second massage unit 542.

At this time, the third driving unit 543 may be formed of a driving motor, and the third driving transmission unit 545 may be formed of a combination of gears.

That is, since the driving force generated by the third driving unit 543 is transmitted to the second massage unit 542 equally, the pair of second massage units 542 move symmetrically with each other with the same driving force and massage the body. Is done.

The fourth driving unit 544 is disposed and assembled on the second base frame 541, and generates a driving force capable of moving the second massage module 540 in the up and down directions.

The fourth driving transmission unit 546 is disposed and assembled on the second base frame 541, and transmits the driving force generated by the fourth driving unit 544 to the guide rail 550.

Accordingly, the second massage module 540 may move up and down along the guide rail 550 to be positioned at a position suitable for a user's body structure.

At this time, the fourth driving unit 544 is made of a driving motor, and the fourth driving transmission unit 546 can be made of a combination of gears.

In this case, the fourth driving unit 544 is arranged in a direction oblique to the moving direction of the second massage module 540, that is, in a direction inclined to the moving direction, the guide rail 550 from the fourth driving unit 544 It is possible to narrow the distance between the number of gears used in the fourth drive transmission unit 546 can be reduced, and as a result, the fourth drive transmission unit 544 is transferred to the fourth drive transmission unit 546 The loss of driving force is reduced.

The second sensor unit 547 is provided on the upper surface of the second base frame 541 so as to come into contact with the position of the second attenuator 438, and the functions and structures are the same as described above. Omit.

In addition, the third sensor unit 548 is provided on the lower surface of the second base frame 541 to contact the third attenuation unit 522, and for the function and structure, the first attenuation unit 521 and the first 1 Since the sensor unit 537 has been described, it will be omitted.

Then, when the third sensor unit 548 and the third damping unit 522 are in contact, the second massage module 540 is stopped in the downward direction.

The guide rail 550 is accommodated in the storage space of the cover frame 510 and extends parallel to the first and second openings 511 and 512.

In addition, a first massage module 530 and a second massage module 540 are connected to the guide rail 550, and the first massage module 530 and the second massage module 540 are guide rails 550. It moves independently in the up and down directions.

In addition, although the guide rail 550 is illustrated on one side of the first and second massage modules 530 and 540, the guide rail 550 has the other side and the first and second openings 511 and 512. ), or both sides.

The control unit 560 can control the position and operation of each of the first and second massage modules 530 and 540 by an external input signal.

Looking at the operating state according to the angle adjustment structure of the backrest of the chair to which the massage function of the present invention having the above structure is provided is as follows.

The seat plate 10 supporting the seat plate 10 and the backrest base 200 supporting the backrest 20 are provided with a cylinder 310 to adjust the angle of the backrest 20 according to the operation of the cylinder 310. It is possible to smoothly adjust the angle of the backrest 20 by operating the cylinder 310 by the operation of the adjustment bar 320.

In addition, by connecting the stopper part 330 to the seat plate 10 and the backrest base 200, the backrest 20 that is bent back from the seat plate 10 according to the operation of the cylinder 310 is stably supported, and the backrest The position of (20) can be stopped.

Then, the guide member 410 is provided on the side of the seat base 100 and the guide bar 420 is inserted into the guide groove 411 of the guide member 410 to adjust the angle of the backrest 20. The bar 420 can be guided along the guide groove 411 so that it can be smoothly bent or pulled without being shaken to the left or right of the backrest 20 by the guide part 400.

As described above, the seat plate 10 and the backrest 200 are provided with a cylinder 310, a stopper part 330, and a guide part 400 to the cylinder 310, a stopper part 330, and a guide part 400. By doing so, the angle adjustment operation of the backrest 200 is slow, so that it is possible to minimize the impact on the user's body sitting on the chair.

In addition, a first massage module 530 and a second massage module 540 capable of massaging a user's neck and back are provided on upper and lower portions of the backrest 20, respectively, and the first massage module ( 530) and the second massage module 540 can move to any position in the up and down direction along the guide rail 550, so a wide range of the user's neck and back areas can be massaged at any position. It is possible to maximize the relief of fatigue.

In addition, the first massage ball 532b of the first massage portion 532 is provided by being biased to one side of the first rotating plate 532a, and the first massage ball 532b rotated according to the rotation of the first rotating plate 532a. ) Is rotated in a circle to massage the neck area widely.

And, by providing the second massage module 540 of the second massage portion 542 inclined (S) from the front of the second base frame 541, the pair rotated according to the rotation of the second rotating plate 542b The second massage balls 542c are rotated in an inclined state, so that the protrusion intervals are different from each other, so that the second massage module 540 can increase the massage efficiency of the user's back.

As described above, the present invention is not limited to the specific preferred embodiments described above, and any person having ordinary skill in the art to which the present invention pertains may vary without departing from the gist of the present invention as claimed in the claims. Of course, modifications are possible, and such changes are within the scope of the claims.

10: seat 20: backrest
30: leg 40: armrest
100: seat support 200: back support
310: cylinder 320: adjustment bar
330: stopper 331: connecting rod
331a: fitting groove 331b: rotating piece
332: Stopper 340: Connection
400: guide portion 410: guide member
411: Guide groove 420: Guide bar
500: massage machine 510: cover frame
511: first opening 512: second opening
520: fixed frame 521: first damping portion
522: third damping unit 530: first massage module
531: 1st base frame 532: 1st massage part
532a: first rotating plate 532b: first massage ball
533: 1st driving unit 534: 2nd driving unit
535: 1st drive transmission part 536: 2nd drive transmission part
537: first sensor unit 538: second attenuator
540: second massage module 541: second base frame
542: second massage part 542a: connector
542b: Second rotating plate 542c: Second massage ball
543: 3rd driving unit 544: 4th driving unit
545: 3rd drive transmission 546: 4th drive transmission
547: second sensor unit 548: third sensor unit
550: guide rail 560: control unit
h: hinge B: bolt
N: Nut

Claims (9)

A seat plate stand connected to the upper portion of the leg but connected to the lower portion of the seat plate;
A backrest support rotatably connected to the seat support to support the backrest;
A massager provided inside the front of the backrest to massage a user's body part;
A cylinder connected to a lower portion of the seat plate and a backrest base to adjust the angle of the backrest;
An adjustment bar connected to the cylinder to control the operation of the cylinder;
A stopper part connected to the seat plate and the backrest base; And
It is provided on both sides of the seat plate support guide section for guiding the armrests connected to the backrest support; angle adjustment structure of the backrest of a chair with a massage function. According to claim 1,
The stopper portion,
A connecting rod provided vertically below the seat plate; And
A stopper angle control structure including a massage function including a; stopper connected to the connecting rod and a backrest stand. According to claim 2,
The stopper has a fitting groove formed to be connected to the lower side of the connecting rod by a bolt and a nut, and a backrest of a chair with a massage function, characterized in that a rotating piece is provided at the end of the backrest to be connected with a bolt and a nut. Angle adjustment structure. The method of claim 3,
The fitting groove is an angle control structure for a backrest of a chair with a massage function, characterized in that it is formed in an elliptical shape to the left and right to adjust the connection position of the bolt to adjust the spacing of the backrest. The method of claim 3,
When the rotating piece is connected to the lower portion of the backrest base, the backrest angle adjustment structure of the chair with a massage function is characterized in that it is formed in a donut shape so that the backrest base can be rotated smoothly according to the operation of the cylinder. According to claim 1,
The guide portion,
A guide member provided on a side of the seat plate support and having a guide groove; And
Included inside the lower end of the armrest, the guide bar is guided along the guide groove in accordance with the rotation of the backrest support is fitted into the guide groove; angle adjustment structure of the backrest of the chair with a massage function. The method of claim 6,
The guide member is inserted into the guide groove, the backrest angle adjustment structure of the chair with a massage function characterized in that it is made of a'b' shape to stably support the guide bar being guided. The method of claim 6,
The guide groove is an angle control structure for the backrest of a chair with a massage function, characterized in that the guide bar is formed in an elliptical shape to the left and right so that the guide bar can be guided smoothly when the base is rotated. According to claim 1,
The massager,
Cover frames forming first and second openings parallel to each other and forming an outer shape;
A first massage module which is accommodated in the cover frame and includes a pair of first massage parts protruding through each of the first and second openings, and massaging a user's neck;
A second massage module which is stored at a position lower than the first massage module in the cover frame and includes a pair of second massage parts protruding through each of the first and second openings, and massaging the user's back; And
It is housed inside the cover frame and connected to the first and second openings in parallel to guide rails for moving the first and second massage modules up and down.

Images