An automobile seat with leg massage

Abstract

The present invention discloses a car seat with leg massage, which relates to the technical field of car seats, and includes: a massage seat and a seat bracket installed at the bottom of the massage seat; an automatic massager, located on the inner side of the massage seat, used to massage the user's legs, the automatic massager includes a support plate fixedly connected to the top of the seat bracket, a plurality of grooves are provided on the inner side of the massage seat, and a massage roller is provided on the inner side of each groove; a swing mechanism, located on the inner side of the groove, used to move the massage roller to swing back and forth, and the swing mechanism includes a connecting ring provided on the inner side of the groove. The present invention arranges the cooperation of parts such as a rotating block, so that the massage roller can always fit on the inner side of the massage seat during the swinging process, so that the device can perform massages at different positions, thereby improving the comfort of the user.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to an automobile seat with leg massage function. Background Art

[0002] As an important part of modern automobiles, the design and manufacture of car seats reflect a high level of concern for the comfort and safety of drivers and passengers. Car massage seats are an important comfort configuration in modern automobiles. They provide massage services to drivers and passengers through built-in electric massage devices to relieve fatigue and improve riding comfort.

[0003] Existing car massage seats generally generate vibrations through the vibration motor inside the seat, which acts on the human body with different frequencies and intensities, helping to relieve muscle tension, or use the inflation and deflation of airbags to squeeze the massage parts, simulating the feeling of manual kneading, and providing a comfortable massage experience for the driver and passengers. However, the massage positions of existing car massage seats are fixed, and massage can only be performed at fixed positions and cannot adapt to the massage needs of different parts of the human body, thereby reducing the overall practicality of the device. For this reason, we provide a car seat with leg massage to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a car seat with leg massage in order to solve the problem that the existing massage seats have fixed massage positions and cannot meet the massage needs of different parts of the human body.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a car seat with leg massage, comprising: a massage seat and a seat bracket installed at the bottom of the massage seat; an automatic massager, located on the inner side of the massage seat, for massaging the user's legs, the automatic massager comprising a support plate fixedly connected to the top of the seat bracket, a plurality of grooves are provided on the inner side of the massage seat, a massage roller is provided on the inner side of each groove; a swing mechanism, located on the inner side of the groove, for moving the massage roller to swing back and forth, the swing mechanism comprising a connecting ring provided on the inner side of the groove, an auxiliary seat is fixedly connected to the top of the connecting ring, a rotating block is provided on the inner side of the auxiliary seat, and an adaptive auxiliary member for driving the rotating block to perform adaptive twisting is provided between the rotating block and the auxiliary seat.

[0006] As a further solution of the present invention: the automatic massager also includes a support seat fixedly connected to the top of the support plate, the inner side of the support seat is rotatably connected with a one-way threaded screw, the outer wall of the one-way threaded screw is threadedly connected with a sliding frame, and the sliding frame is fixedly connected to the connecting ring, the sliding frame is slidably connected to the inner side of the support seat, a first drive motor is installed on the top of the support plate, and the output end of the first drive motor is connected to the one-way threaded screw, a connecting plate is provided above the sliding frame, the inner side of the connecting plate is rotatably connected with a massage roller, the outer wall of the massage roller is embedded with a plurality of balls, a second drive motor is installed on one side of the connecting plate, and the output end of the second drive motor is connected to the massage roller.

[0007] As a further solution of the present invention: a plurality of the one-way threaded screws are provided, and the plurality of the one-way threaded screws are equidistantly distributed on the inner side of the massage seat, and the outer wall of each of the one-way threaded screws is fixedly connected to a first spur gear, and a chain is installed on the outer walls of the plurality of the first spur gears.

[0008] As a further solution of the present invention: the pitches of the outer wall threads of the plurality of one-way threaded screw rods increase in an arithmetic progression, so that the pitches of the threads of the plurality of one-way threaded screw rods decrease from left to right.

[0009] As a further solution of the present invention: the swing mechanism also includes a first rotating shaft rotatably connected to the inner side of the auxiliary seat, a third drive motor is installed on one side of the auxiliary seat, and the output end of the third drive motor is connected to the first rotating shaft, a slider is slidably connected to the inner side of the rotating block, and one end of the slider extends to the top of the rotating block and is fixedly connected to a tray, the bottom of the slider is fixedly connected to a first spur rack, and a toggle component for toggling the first spur rack to move back and forth up and down is provided on the inner side of the rotating block.

[0010] As a further solution of the present invention: the toggle assembly includes a first spur rack fixedly connected to the bottom of the slider, a second spur gear meshing with the first spur rack is rotatably connected to the inner side of the rotating block, a second spur gear meshing with the first spur rack is meshed with a second spur rack on one side of the second spur gear, a connecting block is fixedly connected to the bottom of the second spur rack, a sliding rod is fixedly connected to the bottom of the connecting block, and one end of the sliding rod penetrates through the outer wall of the rotating block and is slidably connected to the rotating block, a roller is rotatably connected to the bottom of the sliding rod, an arched ramp is fixedly connected to the inner side of the connecting ring below the roller, and a connecting spring is installed between the connecting block and the rotating block.

[0011] As a further solution of the present invention: The adaptation auxiliary member includes second rotating shafts fixedly connected to both sides of the rotating block. One end of each second rotating shaft penetrates to the inner side of the first rotating shaft and is rotatably connected to the first rotating shaft. A fixing ring is fixedly connected to one end of each second rotating shaft, and a torsion spring is installed between the fixing ring and the first rotating shaft.

[0012] As a further solution of the present invention: The adaptation auxiliary member further includes a hydraulic damper installed at the bottom of the tray, and the output end of the hydraulic damper penetrates above the tray and is fixedly connected to the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. Through the cooperation of components such as the rotating block, when the massage roller moves upward to a specified position, the third driving motor and the second driving motor are started. The output end of the second driving motor drives the massage roller to rotate to massage the user's leg. The output end of the third driving motor can rotate forward and backward, and the forward and backward rotation range is 120 degrees. When the output end of the third driving motor drives the rotating block to swing reciprocally, during the process of the roller swinging from the highest point to the lowest point of the arched ramp, the roller gradually elongates under the action of the connecting spring, thereby driving the second straight rack to drive the second straight gear to rotate, and then driving the first straight rack to drive the tray to move upward, so that the massage roller can always fit on the inner inclined slope of the massage seat during the swinging process, so that the device can perform massages at different positions, thereby improving the comfort of the user;

[0015] 2. Through the cooperation of components such as the first driving motor, the output end of the first driving motor drives a single-thread screw rod to rotate, thereby driving a first straight gear to rotate, and then driving a chain to rotate, so as to drive other first straight gears to drive a single-thread screw rod to rotate respectively. Since the support part of the massage seat is inclined from the outside to the inside, and the pitches of the external threads of multiple single-thread screw rods form an arithmetic sequence and increase sequentially, the pitches of the threads of multiple single-thread screw rods from left to right are smaller. When multiple single-thread screw rods rotate synchronously, they respectively drive a massage roller to move upward. Finally, when the first driving motor stops running, multiple massage rollers are distributed in a stepped manner on the inner side of the massage seat, so that the stepped massage rollers can adapt to the inclined state of the user's legs when sitting on the massage seat, so that the device can better realize the massage of the user's legs;

[0016] 3. By setting the cooperation of parts such as hydraulic dampers, when the user suddenly exerts a large downward pressure during the massage process of the massage roller, when the massage roller is in a vertical state, when receiving the downward pressure, it can squeeze the output end of the hydraulic damper downward, thereby buffering. When the massage roller is in an inclined state, the downward pressure received by the massage roller can adaptively drive the rotating block to rotate, so that the torsion spring is twisted, thereby being able to contract the position, avoiding the impact injury caused by the user suddenly exerting too large a downward force, thereby improving the safety of the device during use and further improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a sectional view of the massage seat of the present invention;

[0019] Figure 3 is of the present invention Figure 2 enlarged view at A in;

[0020] Figure 4 is a schematic structural diagram of the automatic massager of the present invention;

[0021] Figure 5 is a sectional view of the tray and the rotating block of the present invention;

[0022] Figure 6 is of the present invention Figure 5 enlarged view at B in;

[0023] Figure 7 is a sectional view of the auxiliary seat of the present invention;

[0024] Figure 8 is a schematic structural diagram of the massage roller of the present invention.

[0025] In the figure: 1. Massage seat; 2. Seat bracket; 3. Hydraulic damper; 4. Support plate; 5. Groove; 6. One-way threaded lead screw; 7. First drive motor; 8. Chain; 9. First straight gear; 10. Support seat; 11. Sliding frame; 12. Connecting ring; 13. Second drive motor; 14. Rotating block; 15. Tray; 16. Massage roller; 17. Ball; 18. Arch ramp; 19. Auxiliary seat; 20. Third drive motor; 21. First straight rack; 22. Slide block; 23. Second straight rack; 24. Second straight gear; 25. Connecting block; 26. Slide bar; 27. Connecting spring; 28. Roller; 29. First rotating shaft; 30. Second rotating shaft; 31. Fixed ring; 32. Torsion spring; 33. Connecting plate. DETAILED DESCRIPTION OF THE INVENTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The following will explain the embodiments according to the overall structure of the present invention.

[0028] Please refer to Figures 1 to 8, this embodiment provides a car seat with leg massage, including a massage seat 1 and a seat bracket 2 installed at the bottom of the massage seat 1; an automatic massager located inside the massage seat 1 for massaging the user's legs. The automatic massager includes a support plate 4 fixedly connected to the top of the seat bracket 2. A plurality of grooves 5 are formed inside the massage seat 1, and a massage roller 16 is provided inside each groove 5. The automatic massager further includes a support seat 10 fixedly connected to the top of the support plate 4. A one-way threaded lead screw 6 is rotatably connected inside the support seat 10. A sliding frame 11 is threadedly connected to the outer wall of the one-way threaded lead screw 6, and the sliding frame 11 is fixedly connected to a connecting ring 12. The sliding frame 11 is slidably connected inside the support seat 10. A first driving motor 7 is installed on the top of the support plate 4, and the output end of the first driving motor 7 is connected to the one-way threaded lead screw 6. Above the sliding frame 11 is a connecting plate 33. A massage roller 16 is rotatably connected inside the connecting plate 33. A plurality of balls 17 are embedded in the outer wall of the massage roller 16. A second driving motor 13 is installed on one side of the connecting plate 33, and the output end of the second driving motor 13 is connected to the massage roller 16. There are a plurality of one-way threaded lead screws 6, and the plurality of one-way threaded lead screws 6 are equidistantly distributed inside the massage seat 1. A first straight gear 9 is fixedly connected to the outer wall of each one-way threaded lead screw 6. A chain 8 is installed on the outer walls of the plurality of first straight gears 9. The pitches of the threads on the outer walls of the plurality of one-way threaded lead screws 6 increase in an arithmetic progression, so that the pitches of the threads of the plurality of one-way threaded lead screws 6 are smaller from left to right;

[0029] First, when the user sits on the massage seat 1 and needs to be massaged, the first driving motor 7 can be started. The output end of the first driving motor 7 drives a one-way threaded lead screw 6 to rotate, thereby driving a first straight gear 9 to rotate, and then driving the chain 8 to rotate, so as to drive other first straight gears 9 to drive a one-way threaded lead screw 6 to rotate respectively. Since the supporting part of the massage seat 1 is inclined from the outside to the inside, and since the pitches of the threads on the outer walls of the plurality of one-way threaded lead screws 6 increase in an arithmetic progression, the pitches of the threads of the plurality of one-way threaded lead screws 6 are smaller from left to right. When the plurality of one-way threaded lead screws 6 rotate synchronously, they respectively drive a massage roller 16 to move upward. Finally, when the first driving motor 7 stops running, the plurality of massage rollers 16 are distributed in a stepped manner inside the massage seat 1, so that the stepped massage rollers 16 can adapt to the inclined state of the user's legs when sitting on the massage seat 1, so that the device can better realize the massage of the user's legs.

[0030] Please refer to Figures 4 to 8, a swing mechanism is located on the inner side of the groove 5 and is used to move the massage roller 16 to swing back and forth. The swing mechanism includes a connecting ring 12 arranged on the inner side of the groove 5, and the top of the connecting ring 12 is fixedly connected to an auxiliary seat 19, and a rotating block 14 is arranged on the inner side of the auxiliary seat 19. The swing mechanism also includes a first rotating shaft 29 rotatably connected to the inner side of the auxiliary seat 19, and a third driving motor 20 is installed on one side of the auxiliary seat 19, and the output end of the third driving motor 20 is connected to the first rotating shaft 29. A slider 22 is slidably connected to the inner side of the rotating block 14, and one end of the slider 22 extends to the top of the rotating block 14 and is fixedly connected to the tray 15, and the bottom of the slider 22 is fixedly connected to the first straight rack 21, and the inner side of the rotating block 14 is provided with a slider 22 for moving the first straight rack 21. A toggle assembly for reciprocating up and down movement of a spur rack 21, the toggle assembly includes a first spur rack 21 fixedly connected to the bottom of a slider 22, a second spur gear 24 meshing with the first spur rack 21 is rotatably connected to the inner side of a rotating block 14, a second spur gear 23 meshing with a second spur gear 24 is meshed with a second spur rack 23, a connecting block 25 is fixedly connected to the bottom of the second spur rack 23, a sliding rod 26 is fixedly connected to the bottom of the connecting block 25, and one end of the sliding rod 26 penetrates the outer wall of the rotating block 14 and is slidably connected to the rotating block 14, a roller 28 is rotatably connected to the bottom of the sliding rod 26, an arched ramp 18 is fixedly connected to the inner side of the connecting ring 12 below the roller 28, and a connecting spring 27 is installed between the connecting block 25 and the rotating block 14;

[0031] When the massage roller 16 moves upward to the specified position, the third drive motor 20 and the second drive motor 13 are started, and the output end of the second drive motor 13 drives the massage roller 16 to rotate to massage the user's legs. The output end of the third drive motor 20 can be forward and reverse, and the forward and reverse interval is 120 degrees. When the output end of the third drive motor 20 drives the rotating block 14 to swing back and forth, so that the roller 28 swings from the highest point to the lowest point of the arched ramp 18, the roller 28 gradually extends under the action of the connecting spring 27, thereby driving the second spur gear 24 to rotate through the second spur rack 23, and then driving the first spur rack 21 to drive the tray 15 to move upward, so that the massage roller 16 can always fit on the inner inclined slope of the massage chair 1 during the swinging process, so that the device can perform massages at different positions, thereby improving the user's comfort.

[0032] See also Figure 7, an adaptation auxiliary member for driving the rotating block 14 to adaptively twist is provided between the rotating block 14 and the auxiliary seat 19. The adaptation auxiliary member includes second rotating shafts 30 fixedly connected to both sides of the rotating block 14. One end of the second rotating shaft 30 penetrates to the inner side of the first rotating shaft 29 and is rotatably connected to the first rotating shaft 29. A fixing ring 31 is fixedly connected to one end of the second rotating shaft 30, and a torsion spring 32 is installed between the fixing ring 31 and the first rotating shaft 29. The adaptation auxiliary member further includes a hydraulic damper 3 installed at the bottom of the tray 15, and the output end of the hydraulic damper 3 penetrates above the tray 15 and is fixedly connected to a connecting plate 33;

[0033] When the user suddenly exerts a large downward pressure during the massage process of the massage roller 16, when the massage roller 16 is in a vertical state, when receiving the downward pressure, it can squeeze the output end of the hydraulic damper 3 downward to buffer. When the massage roller 16 is in an inclined state, the downward pressure received by the massage roller 16 can adaptively drive the rotating block 14 to rotate, so that the torsion spring 32 is twisted, thereby being able to contract the position, avoiding the user being injured by impact due to the sudden excessive downward force, thereby improving the safety of the device during use and further improving the overall practicality of the device.

[0034] Working principle: First, when the user sits on the massage seat 1 and needs to be massaged, the first driving motor 7 can be started. The output end of the first driving motor 7 drives a unidirectional threaded lead screw 6 to rotate, thereby driving a first spur gear 9 to rotate, and then driving the chain 8 to rotate, so as to drive other first spur gears 9 to drive a unidirectional threaded lead screw 6 to rotate respectively. Since the supporting part of the massage seat 1 is inclined from the outside to the inside, and since the pitches of the external threads of the plurality of unidirectional threaded lead screws 6 form an arithmetic progression and increase in sequence, the pitches of the threads of the plurality of unidirectional threaded lead screws 6 from left to right are smaller. When the plurality of unidirectional threaded lead screws 6 rotate synchronously, they respectively drive a massage roller 16 to move upward. Finally, when the first driving motor 7 stops running, the plurality of massage rollers 16 are distributed in a stepped manner inside the massage seat 1, so that the stepped distributed massage rollers 16 can adapt to the inclined state of the user's legs when sitting on the massage seat 1, so that the device can better realize the massage of the user's legs;

[0035] After the massage roller 16 moves upward to the designated position, the third drive motor 20 and the second drive motor 13 are started. The output end of the second drive motor 13 drives the massage roller 16 to rotate to massage the user's leg. The output end of the third drive motor 20 can rotate forward and backward, and the forward and backward rotation range is 120 degrees. When the output end of the third drive motor 20 drives the rotating block 14 to swing reciprocally, during the process that the roller 28 swings from the highest point to the lowest point of the arched ramp 18, the roller 28 gradually elongates under the action of the connecting spring 27, thereby driving the second straight rack 23 to drive the second spur gear 24 to rotate, and further driving the first straight rack 21 to drive the tray 15 to move upward, so that the massage roller 16 can always fit on the inner inclined slope of the massage seat 1 during the swinging process, so that the device can perform massages at different positions, thereby improving the comfort of the user;

[0036] When a relatively large downward pressure suddenly occurs to the user during the massage process of the massage roller 16, when the massage roller 16 is in a vertical state, the output end of the hydraulic damper 3 can be squeezed downward under the downward pressure to perform buffering. When the massage roller 16 is in an inclined state, the downward pressure on the massage roller 16 can adaptively drive the rotating block 14 to rotate, so that the torsion spring 32 is twisted, so as to be able to contract the position, avoiding the impact injury caused by the excessive downward force suddenly generated by the user, thereby improving the safety of the device during use, and further improving the overall practicality of the device.

[0037] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A car seat with leg massage, characterized in that: include: A massage seat (1) and a seat bracket (2) mounted on the bottom of the massage seat (1); An automatic massager, located on the inner side of the massage seat (1) and used for massaging the user's legs, the automatic massager comprising a support plate (4) fixedly connected to the top of the seat bracket (2), a plurality of grooves (5) being provided on the inner side of the massage seat (1), and a massage roller (16) being provided on the inner side of each groove (5); a swing mechanism, located inside the groove (5), for moving the massage roller (16) to swing back and forth, the swing mechanism comprising a connecting ring (12) arranged inside the groove (5), the top of the connecting ring (12) being fixedly connected to an auxiliary seat (19), a rotating block (14) being arranged inside the auxiliary seat (19), and an adaptive auxiliary component for driving the rotating block (14) to perform adaptive twisting being arranged between the rotating block (14) and the auxiliary seat (19); The swing mechanism further comprises a first rotating shaft (29) rotatably connected to the inner side of the auxiliary seat (19); a third driving motor (20) is mounted on one side of the auxiliary seat (19); an output end of the third driving motor (20) is connected to the first rotating shaft (29); a slider (22) is slidably connected to the inner side of the rotating block (14); one end of the slider (22) extends to the top of the rotating block (14) and is fixedly connected to a tray (15); a first straight rack (21) is fixedly connected to the bottom of the slider (22); and a toggle assembly for toggling the first straight rack (21) to reciprocate up and down is provided on the inner side of the rotating block (14); The toggle assembly comprises a first spur rack (21) fixedly connected to the bottom of the slider (22); a second spur gear (24) meshing with the first spur rack (21) is rotatably connected to the inner side of the rotating block (14); a second spur gear (24) meshing with the first spur rack (21) is meshed with a second spur gear (23) on one side of the second spur gear (24); a connecting block (25) is fixedly connected to the bottom of the second spur rack (23); a sliding rod (26) is fixedly connected to the bottom of the connecting block (25); one end of the sliding rod (26) penetrates the outer wall of the rotating block (14) and is slidably connected to the rotating block (14); a roller (28) is rotatably connected to the bottom of the sliding rod (26); an arched ramp (18) is fixedly connected to the inner side of the connecting ring (12) below the roller (28); and a connecting spring (27) is installed between the connecting block (25) and the rotating block (14).

2. The car seat with leg massage according to claim 1, characterized in that: The automatic massager further comprises a support seat (10) fixedly connected to the top of the support plate (4); a one-way threaded screw (6) is rotatably connected to the inner side of the support seat (10); a sliding frame (11) is threadedly connected to the outer wall of the one-way threaded screw (6); the sliding frame (11) is fixedly connected to the connecting ring (12); the sliding frame (11) is slidably connected to the inner side of the support seat (10); a first drive motor (7) is mounted on the top of the support plate (4); an output end of the first drive motor (7) is connected to the one-way threaded screw (6); a connecting plate (33) is arranged above the sliding frame (11); a massage roller (16) is rotatably connected to the inner side of the connecting plate (33); a plurality of balls (17) are embedded in the outer wall of the massage roller (16); a second drive motor (13) is mounted on one side of the connecting plate (33); and an output end of the second drive motor (13) is connected to the massage roller (16).

3. The car seat with leg massage according to claim 2, characterized in that: A plurality of the one-way threaded screw rods (6) are provided, and the plurality of the one-way threaded screw rods (6) are distributed at equal distances on the inner side of the massage chair (1), and the outer wall of each of the one-way threaded screw rods (6) is fixedly connected to a first spur gear (9), and a chain (8) is installed on the outer walls of the plurality of the first spur gears (9).

4. The car seat with leg massage according to claim 3, characterized in that: The pitches of the threads on the outer walls of the plurality of one-way threaded screw rods (6) increase in sequence in an arithmetic progression, such that the pitches of the threads of the plurality of one-way threaded screw rods (6) decrease from left to right.

5. The car seat with leg massage according to claim 1, characterized in that: The adaptation auxiliary component comprises a second rotating shaft (30) fixedly connected to both sides of the rotating block (14), one end of the second rotating shaft (30) passes through the inner side of the first rotating shaft (29) and is rotatably connected to the first rotating shaft (29), one end of the second rotating shaft (30) is fixedly connected to a fixing ring (31), and a torsion spring (32) is installed between the fixing ring (31) and the first rotating shaft (29).

6. The car seat with leg massage according to claim 2, characterized in that: The adaptation auxiliary component also includes a hydraulic damper (3) installed at the bottom of the tray (15), and the output end of the hydraulic damper (3) passes through the top of the tray (15) and is fixedly connected to the connecting plate (33).

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