CN110811194A - A leisure chair frame capable of sinking and unfolding and its leisure chair - Google Patents

Abstract

The invention relates to the technical field of chairs, in particular to a leisure chair frame and a leisure chair that can be sunk and unfolded, including: a driving component, one end of which is connected to the bottom end of the seat frame of the chair, and the other end is connected to the frame of the bracket; the chair; Driven by the driving component, the seat frame rotates and sinks or rises relative to the bracket; and the leg support frame is hinged to the seat frame, one end of which is fixedly connected to the bracket; through the relative relationship between the bracket and the seat Displacement, so that the leg rest frame is linked relative to the seat frame; the leg rest frame includes a frame and a leg rest, and the leg rest can slide relative to the frame to meet different comfortable sitting postures.

Description

A leisure chair frame capable of sinking and unfolding and its leisure chair

technical field

The invention relates to the technical field of chairs, in particular to a leisure chair frame and a leisure chair which can be unfolded downwardly.

Background technique

The chair is one of the most frequently used items in people's daily life. With the development and progress of the times, people have higher requirements for the function of the chair. When people need to rest after working for a long time, they are eager to lie on the chair and relax. Close your eyes and rest in order to improve your work efficiency.

At present, there are relatively few chairs with their own leg rests. Without leg rests, people can only sit on the chair and cannot lie on the chair, which makes it impossible to relax the whole body. If you need to lie down, you must change to a reclining chair. It also takes up a lot of space, so it is more troublesome; a small number of chairs with leg rests require a separate driver to drive the leg rests to unfold, but the seat part of the chair and the bracket remain unchanged, so The design is only to add the function of the leg rest without considering the needs of the human body structure. Therefore, the market is in urgent need of a leisure chair that can link the leg rest and the seat frame.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a leisure chair skeleton and a leisure chair which can automatically unfold the leg rest in accordance with the sinking of the leisure chair.

In order to achieve the above-mentioned purpose, the main technical solution of the present invention is a leisure chair frame that can sink and unfold, which is characterized in that it includes:

seat frame;

a seat back frame, the bottom of which is hinged to one end of the seat frame;

a bracket, the two sides of which are respectively connected to the two sides of the seat frame through the adapter;

A driving assembly, one end of which is connected to the bottom end of the seat frame, and the other end is connected to the frame body of the bracket; the seat frame rotates and sinks or rises relative to the bracket under the driving of the driving assembly; and

The leg rest frame is hinged to the seat frame, and one end of the leg rest frame is fixedly connected to the bracket; the leg rest frame includes a frame and a leg rest, and the leg rest can slide relative to the frame;

Through the relative displacement between the bracket and the seat frame, the leg rest frame is linked relative to the seat frame; when the leg rest frame is linked relative to the seat frame, the leg rest slides relative to the frame; For the existing chair, a leg rest frame is added so that the legs of the human body can be placed; secondly, the leg rest can be unfolded or stored without occupying space; the most important thing is that the entire chair is linked through a driving component, which can Switch back and forth between sitting or lying down.

In some examples, the drive assembly includes a first electric push rod, the fixed end of the first electric push rod is fixedly connected to the bottom surface of the seat frame, and the telescopic end of the first electric push rod is fixedly connected to the bracket frame; The linear reciprocating motion drives the seat frame to rotate relative to the bracket and sink or rise; only one power source of the first electric push rod is needed to make the entire chair sink and expand or rise and store.

In some examples, the leisure chair frame further comprises a second electric push rod, the telescopic end of the second electric push rod is fixedly connected to the bottom of the seat frame, and the fixed end of the second electric push rod is fixedly connected to the bottom end of the seat back frame; Through the linear reciprocating motion of the second electric push rod, the seat back frame is driven to rotate relative to the seat frame, and the angle formed by the seat back frame and the seat frame changes with the expansion and contraction of the second electric push rod; The angle between the seat frame is changed to meet the needs of different people.

In some examples, the leg support frame includes a fixed base, a frame, a leg support, a telescopic link and a power assembly, the fixed base is fixedly connected to the bottom of the seat frame, one end of the frame is hinged on the fixed base, and the power The assembly acts on the frame; the telescopic link includes a first link, a second link and a third link that are hinged in sequence, one end of the first link is connected to the fixed seat, and one end of the third link is connected to the leg On the bracket, the shaft of the second link is hinged on the frame.

In some examples, the power assembly includes a push rod, a guide tube and a support, the shaft of the push rod is placed in the guide tube and can move axially in the guide tube, and the extension end of the push rod is fixedly connected to the guide tube. On the fixed seat, one end of the guide tube is fixedly connected to the bracket, and the two ends of the support are hinged to the frame and the guide tube respectively; the power component has no power source of its own, and the seat frame and the bracket are offset by the drive component, Then, the push rod and the guide tube in the power component move relative to each other, and the linkage effect is terminated.

In some examples, when the first electric push rod performs a linear contraction movement, the seat frame rotates and moves downward relative to the bracket, thereby driving the fixed seat to deflect inwardly, so that the push rod shrinks toward the inside of the guide tube, and the frame is relatively The fixed seat rotates, the telescopic link rotates synchronously with the frame, and linkage occurs between the links, so that the leg bracket slides relative to the frame, and the leg bracket frame is stretched.

In some examples, two sides of the bracket are fixedly connected with mounting plates, two ends of the adapter are hinged to the mounting plate and the seat frame respectively, and two limit posts are provided on the mounting plate, The adaptor can swing back and forth between the two limit posts; thereby partially limiting the swinging range of the adaptor, indirectly limiting the offset of the seat frame relative to the bracket, and ensuring the safety of its sinking.

In some examples, one end of the first link is hinged to the rotating part of the fixed seat, and the other end is hinged to the second link through a linkage; the second link is in the shape of a pair of hooks, including a first section and a second section , the length of the first segment is shorter than that of the second segment, the first segment and the second segment form an obtuse angle, one end of the second segment is hinged to the third link; one end of the third link is hinged to the leg bracket; the second The setting of the connecting rod utilizes the lever principle to ensure that the sliding force generated by the sliding of the leg bracket relative to the frame is relatively small.

In some examples, the adaptor is in an inverted Z shape, wherein a section of the folded edge is hinged on the mounting plate and swings along and against the wall of the mounting plate.

A leisure chair is also provided, which includes the above-mentioned leisure chair frame that can be unfolded by sinking.

Since the present invention adopts the above technical solutions, when it is necessary to lie on the leisure chair, the frame of the leisure chair will sink and expand, and only the first motor push rod needs to be activated, and the linear movement of the first motor push rod is used to make the seat frame Relative to the displacement between the brackets, the rotating member rotates relative to the bracket, so that the seat frame sinks relative to the bracket. Since the fixed seat is fixed at the bottom of the seat frame, the fixed seat and the seat frame are relative to the bracket. A synchronous displacement occurs between the two parts, which drives the push rod to shrink toward the guide tube, and the fixed seat also moves inward under the drive of the push rod. The telescopic link rotates with the rotating part. During the rotation of the telescopic link, the first link, the second link and the third link are linked together. During the rotation, the leg rest and the bearing frame The angle between them can be changed arbitrarily; in addition, in order to make the lying more comfortable, the second electric push rod can be activated, so that the second electric push rod can contract to increase the angle between the seat back frame and the seat frame.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention,

Fig. 2 is the structural representation of the unfolded structure of the leisure chair frame of the embodiment of Fig. 1,

Fig. 3 is the side view structure schematic diagram when the leisure chair frame of the embodiment of Fig. 1 is contracted,

Fig. 4 is the side view structure schematic diagram when the leisure chair frame of the embodiment of Fig. 1 is unfolded,

FIG. 5 is a schematic structural diagram of the unfolded leg rest frame of the embodiment of FIG. 1

In the figure: seat frame 100, seat frame 101, seat mounting plate 102, seat back frame 200, bracket 300, bracket body 301, support shaft 302, mounting plate 303, base 304, cross column 305, leg rest frame 400 , leg bracket 401, frame 402, push rod 403, telescopic link 404, support 405, first link 406, second link 407, third link 408, slider 409, guide tube 410, fixed seat 411 , the rotating part 412 , the beam 413 , the first electric push rod 500 , the second electric push rod 600 , and the connecting piece 700 .

Detailed ways

The following description serves to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and to simplify the description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus the above terms should not be construed as limiting the invention.

It should be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be one. The number may be plural, and the term "one" should not be understood as a limitation on the number.

Example 1:

Referring to the drawings in the description of the present invention, a sunk-deployable leisure chair frame according to a preferred embodiment of the present invention is illustrated. The leisure chair frame includes a seat frame 100 , a seat back frame 200 , and a bracket 300 , a driving assembly and a leg support frame 400; the bottom of the seat back frame 200 is hinged to one end of the seat frame 100, the two sides of the bracket 300 are respectively connected to both sides of the seat frame 100 through adapters, and the driving assembly One end is connected to the bottom end of the seat frame 100, and the other end is connected to the frame body of the bracket 300; the seat frame 100 is driven by the driving component, so that the seat frame 100 and the bracket 300 are relatively displaced, that is, the seat frame 100 rotates and sinks or rises relative to the bracket 300 .

Specifically, the seat frame 100 includes a seat frame ( 101 ), a plurality of transverse seat mounting plates 102 are fixedly arranged in the seat frame ( 101 ), and the bottom of the seat back frame 200 is hinged to the seat back frame ( 101 ) through a connecting member 700 . One end of the seat frame 100 .

The bracket 300 includes a bracket body 301, a support shaft 302, and a base 304 fixed at the bottom end of the support shaft 302. The base 304 is in the shape of a disk, wherein the projections of the bracket body 301 all fall into the area of the disk. In some implementations In an example, the base 304 can also be configured as a plurality of supporting legs that are scattered outward from the center of the circle, and the bottom of the supporting legs can also be provided with rollers; the bracket body 301 is fixedly connected to the top of the support shaft 302, and the bracket body The front and rear ends of the 301 are provided with transverse columns 305, the transverse columns 305 extend and bend upward, and the transverse columns 305 at the front and rear ends are connected with a mounting plate 303, and the mounting plates 303 on both sides of the seat frame 100 are connected to the seat through an adapter. The two sides of the frame 100; wherein, the adapter is in an inverted Z shape, and the two ends of the adapter are hinged to the seat frame 100 and the mounting plate 303 respectively, and a section of the hinged to the mounting plate 303 is along and close to the mounting plate On the wall of the plate 303, in order to prevent the adapter from swinging too much, the mounting plate 303 is provided with two limit posts, and the adapter can swing back and forth between the two limit posts.

The drive assembly includes a first electric push rod 500, the fixed end of the first electric push rod 500 is disposed at the bottom of the seat frame 100, and its telescopic end is fixedly connected to the bracket main body 301, the first electric push rod 500 is electrically driven. The push rod is driven to perform a linear reciprocating motion, thereby driving the seat frame 100 to move relative to the bracket 300. When the first electric push rod 500 performs an extending motion, the seat frame 100 is raised relative to the bracket 300. On the contrary, the first When the electric push rod 500 performs a retracting motion, the seat frame 100 sinks relative to the bracket 300 .

In order to be more comfortable to lie down, the leisure chair frame further includes a second electric push rod 600 , the telescopic end of the second electric push rod 600 is fixedly arranged at the bottom of the seat frame 100 , and the fixed end is fixedly connected to the seat back frame 200 At the bottom end, the axis of the first electric push rod 500 is diametrically opposite to the axis of the second electric push rod 600. The rotation of the seat back frame 200 relative to the seat frame 100 is driven by the second electric push rod 600. When the electric push rod 600 is retracted, the angle formed between the seat back frame 200 and the seat frame 100 gradually increases. On the contrary, when the second electric push rod 600 is stretched, the angle formed between the seat back frame 200 and the seat frame 100 becomes larger. gradually become smaller.

The leg rest frame 400 includes a leg rest 401, a frame 402, a fixed seat 411, a power assembly and a telescopic link 404. The leg rest 401 slides relative to the frame 402 when the leg rest is stored or unfolded. The fixed seat 411 is fixedly installed on the seat frame of the chair. One end of the frame 402 is hinged to both sides of the fixed seat 411 . The power to rotate, the telescopic link 404 includes a first link 406, a second link 407 and a third link 408 that are hinged in sequence, and one end of the first link 406 is rotatably connected to the fixed seat 411, The third link 408 is rotatably connected to the leg bracket 401 , and the shaft of the second link 407 is rotatably connected to the frame 402 .

Specifically, the leg bracket 401 has a well-shaped structure as a whole, and radially opposite chutes are arranged on the frame walls on both sides of the leg bracket 401, and a plurality of laterally connected mounting plates 303 are arranged on the frame walls on both sides. The mounting plate 303 is used to install the leg support plate; the frame 402 includes a horizontal plate, two ends of the horizontal plate are respectively connected with a frame frame arranged diametrically opposite, and one end of each frame frame is provided with at least one The sliding member 409, in this embodiment, the sliding member 409 is a roller, the sliding member 409 is placed in the chute, and can slide back and forth along the direction of the channel formed by the chute, thereby making the leg bracket 401 move relative to the frame 402. Sliding, the other end of the frame frame is hinged to the fixed seat 411, the frame 402 can be rotated relative to the fixed seat 411, wherein the fixed seat 411 is fixedly connected to the seat frame of the chair, the fixed seat 411 in this embodiment is also It includes a rotating part 412 and a beam 413. Both sides of the rotating part 412 are hinged with the fixed seat 411. Both ends of the beam 413 are fixedly connected to the fixed seat 411. The axis of the rotating part 412 is radially opposite to the axis of the beam 413 ;

The power assembly includes a push rod 403, a guide tube 410 and a support member 405. The shaft of the push rod 403 is placed in the guide tube 410 and can move axially in the guide tube 410. It is fixedly connected to the beam 413 of the fixed seat 411, and as the seat frame of the chair sinks or rises, the fixed seat 411 and the push rod 403 are driven to move synchronously; one end of the support member 405 is hinged on the frame 402, and the other end It can be hinged on the guide tube 410. In this embodiment, a guide elongated through hole is provided on a tube wall of the guide tube 410, and a raised limit post is provided on the rod body of the push rod 403. The limit post can pass through the through hole of the guide strip, and along with the movement of the push rod 403, the limit post moves along the path formed by the guide strip through hole, and the length of the push rod 403 that can be extended is The length of the guiding elongated through hole, the guiding elongated through hole combined with the setting of the limit post is used to guide the push rod 403 to expand and contract along the guide tube 410 on the one hand, and to limit the expansion and contraction of the push rod 403 on the other hand. length, to prevent the push rod 403 from disengaging from the guide tube 410. In order to prevent the guide tube 410 from shifting during the movement process, the power assembly of this embodiment further includes a fixing frame, and the guide tube 410 is stably connected to the bottom of the chair through the fixing frame. The support member 405 is hinged to the fixing frame.

The telescopic link 404 includes a first link 406, a second link 407 and a third link 408 that are hinged in sequence. The first link 406 is twisted, so as to reduce the number of links and facilitate the process of expansion and contraction. For stabilization, the second connecting rod 407 is in the shape of a pair of hooks, that is, the first section and the second section of the second connecting rod 407 form a certain angle (corner), preferably an obtuse angle. One end and one end of the second section are respectively provided with a mounting hole, the length of the first section is shorter than the length of the second section; the second connecting rod 407 is rotatably connected to the horizontal plate through the mounting hole at the corner, and the first connecting rod 406 passes through The linkage is rotatably connected to the mounting hole on the first section of the second link 407; one end of the third link 408 is rotatably connected to the mounting hole on the second section of the second link 407, and the other One end is rotatably connected to the mounting plate 303 of the leg bracket 401; the linkage in this embodiment is L-shaped, including a longitudinal part and a transverse part, the first link 406 is rotatably connected to the longitudinal part, and the second link 407 is rotatably connected with the transverse part, and the linkage is driven by the first link 406, which in turn links the second link 407 to rotate relative to the transverse plate.

The specific sinking deployment and rising storage structure of the leisure chair skeleton is as follows:

When it is necessary to lie on the lounge chair, the lounge chair frame performs a sinking and unfolding motion, that is, the first motor push rod is activated, and the linear motion of the first motor push rod is used to make the seat frame 100 move relative to the bracket 300 and rotate. The component rotates relative to the bracket 300, so that the seat frame 100 sinks relative to the bracket 300. Since the fixing seat 411 is fixedly arranged at the bottom of the seat frame 100, the fixing seat 411 and the seat frame 100 are relative to the bracket 300. Synchronous displacement occurs, thereby driving the push rod 403 to shrink toward the guide tube 410 , and the fixed seat 411 also moves inward under the drive of the push rod 403 , the frame 402 rotates around the rotation point with the fixed seat 411 , and the rotation in the fixed seat 411 The part 412 rotates synchronously with the frame 402, and the telescopic link 404 rotates with the rotating part 412. During the rotation of the telescopic link 404, between the first link 406, the second link 407 and the third link 408 The linkage occurs, that is, the first link 406 drives the second link 407 through the linkage, and the second link 407 rotates relative to the horizontal plate. The connecting rod 408 extends outward, and the pushing leg bracket 401 of the third connecting rod 408 slides relative to the frame 402, so that the whole leg rest is extended. During the rotation, the angle between the leg rest and the bearing frame can be Arbitrary changes; in addition, in order to make lying more comfortable, the second electric push rod 600 can be activated, so that the second electric push rod 600 moves in contraction to increase the angle between the seat back frame 200 and the seat frame 100 .

On the contrary, it can be seen that when the leisure chair frame needs to be moved up and down, that is, the first motor push rod is activated, and the linear movement of the first motor push rod is used to make the seat frame 100 move relative to the bracket 300, and the rotating member is relative to the bracket 300. The opposite rotation occurs, so that the seat frame 100 is raised relative to the bracket 300. Since the fixed seat 411 is fixedly arranged at the bottom of the seat frame 100, the fixed seat 411 and the seat frame 100 are displaced synchronously with respect to the bracket 300. Thereby, the push rod 403 is driven to extend toward the outside of the guide tube 410, and the fixed seat 411 also moves outward under the drive of the push rod 403. The frame 402 rotates in the opposite direction around the rotation point of the fixed seat 411, and the rotating part 412 in the fixed seat 411 follows the rotation of the fixed seat 411. As the frame 402 rotates synchronously, the telescopic link 404 rotates with the rotating part 412. During the rotation of the telescopic link 404, the first link 406, the second link 407 and the third link 408 are linked together. That is, the first link 406 drives the second link 407 through the linkage, and the second link 407 rotates in the opposite direction relative to the horizontal plate. 408 is retracted inward, the push leg bracket 401 of the third link 408 slides relative to the frame 402, and the second electric push rod 600 is activated, so that the second electric push rod 600 stretches and shrinks the seat back frame 200 and the seat frame. angle between 100.

Embodiment two:

The present invention also provides a leisure chair (not shown) that can be sunk and unfolded. The leisure chair includes the leisure chair frame described in Embodiment 1, and the leisure chair is formed by filling the leisure chair frame with flexible fillers.

It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention.

The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims (10)

1. A leisure chair frame capable of sinking and unfolding is characterized in that, comprising: Seat frame (100); a seat back frame (200), the bottom of which is hinged to one end of the seat frame (100); a bracket (300), two sides of which are respectively connected to two sides of the seat frame (100) through adapters; A drive assembly, one end of which is connected to the bottom end of the seat frame (100), and the other end is connected to the frame of the bracket (300); the seat frame (100) is driven by the drive assembly to rotate relative to the bracket (300) and the act of sinking or rising; and The leg rest frame (400) is hinged to the seat frame (100), and one end of which is fixedly connected to the bracket (300); the leg rest frame (400) includes a frame (402) and a leg bracket (401), the leg bracket ( 401) capable of sliding relative to the frame (402); Through the relative displacement between the bracket (300) and the seat frame (100), the leg rest frame (400) is linked relative to the seat frame (100); when the leg rest frame (400) is relative to the seat frame (100) ), the leg bracket (401) slides relative to the frame (402). 2 . The leisure chair frame capable of sinking and unfolding according to claim 1 , wherein the driving assembly comprises a first electric push rod ( 500 ), and the fixed end of the first electric push rod ( 500 ) is fixedly connected to the seat seat. 3 . The bottom surface of the frame (100), the telescopic end of which is fixedly connected to the frame body of the bracket (300); the linear reciprocating motion of the first electric push rod (500) drives the seat frame (100) to rotate relative to the bracket (300) and sinking or rising movement. 3 . The leisure chair frame capable of sinking and unfolding according to claim 1 , wherein the leisure chair frame further comprises a second electric push rod ( 600 ), and the telescopic extension of the second electric push rod ( 600 ). The end is fixedly connected to the bottom of the seat frame (100), and the fixed end is fixedly connected to the bottom end of the seatback frame (200); the seatback frame (200) is driven by the linear reciprocating motion of the second electric push rod (600). ) rotates relative to the seat frame (100), and the angle formed by the seat back frame (200) and the seat frame (100) changes with the extension and contraction of the second electric push rod (600). 4. The leisure chair frame capable of sinking and unfolding according to claim 2, wherein the leg rest frame (400) comprises a fixed seat (411), a frame (402), a leg bracket (401), a telescopic A connecting rod (404) and a power assembly, the fixed seat (411) is fixedly connected to the bottom of the seat frame (100), one end of the frame (402) is hinged on the fixed seat (411), and the power assembly acts on the frame (402) ); the telescopic link (404) includes a first link (406), a second link (407) and a third link (408) that are hinged in sequence, and one end of the first link (406) is connected to a fixed On the seat (411), one end of the third link (408) is connected to the leg bracket (401), and the shaft of the second link (407) is hinged to the frame (402). 5. The reclining chair frame capable of sinking and unfolding according to claim 4, wherein the power assembly comprises a push rod (403), a guide tube (410) and a support (405), and the push rod (403) The shaft of 403) is placed in the guide tube (410) and can move axially in the guide tube (410). One end of the tube (410) is fixedly connected to the bracket (300), and both ends of the support member (405) are hinged to the frame (402) and the guide tube (410) respectively. 6 . The leisure chair frame capable of sinking and unfolding according to claim 5 , wherein when the first electric push rod ( 500 ) performs a linear contraction movement, the seat frame ( 100 ) rotates relative to the bracket ( 300 ) and rotates. 7 . The sinking movement drives the fixed seat (411) to deflect inwardly, so that the push rod (403) shrinks toward the inside of the guide tube (410), the frame (402) rotates relative to the fixed seat (411), and the telescopic link (404) It rotates synchronously with the frame (402) and linkage occurs between the links, so that the leg bracket (401) slides relative to the frame (402), so that the leg bracket frame (400) is extended. 7 . The leisure chair frame capable of sinking and unfolding according to claim 1 , characterized in that, two sides of the bracket ( 300 ) are respectively fixedly connected with mounting plates ( 303 ), and two ends of the adapter are respectively fixed and connected. 8 . It is hinged on the mounting plate (303) and the seat frame (100), the mounting plate (303) is provided with two limit posts, and the adapter can swing back and forth between the two limit posts. 8. The leisure chair frame capable of sinking and unfolding according to claim 4, wherein one end of the first link (406) is hinged to the rotating part (412) of the fixed seat (411), and the other end passes through The linkage is hinged to the second link (407); the second link (407) is in the shape of a pair of hooks, including a first segment and a second segment, the length of the first segment is shorter than the second segment, the first segment and the second segment are The segment forms an obtuse angle, and one end of the second segment is hinged to the third link (408); one end of the third link (408) is hinged to the leg bracket (401). 9 . The leisure chair frame capable of sinking and unfolding according to claim 7 , wherein the adaptor is in an inverted Z shape, and a section of the folded edge is hinged on the mounting plate ( 303 ), along and in close contact with the mounting plate ( 303 ). 10 . The wall of the mounting plate (303) swings. 10. A lounge chair, characterized in that it comprises the lounge chair frame capable of sinking and unfolding according to any one of claims 1 to 9.

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