Method of using a rotary handrail on a seat

Abstract

The application discloses a method for using a rotary handrail on a seat, and the method is as follows: when a user is seated on the seat and in a sitting position, the handrail panel is adjusted to a horizontal supporting position, the length direction of the handrail panel is coincident with the front-back direction, and the handrail supporting surface at the top end of the handrail panel is in a horizontal state; or the handrail panel is deflected from the horizontal supporting position to a central inclined supporting position relative to the supporting main body towards the center of the seat; while the handrail panel is deflected inwards, the handrail supporting surface of the handrail panel is inclined relative to the horizontal plane, so that the height of the outer end of the handrail panel is higher than the height of the inner end of the handrail panel; when the user is seated on the seat and leans back on the seat back, the handrail panel is rotated 180 degrees from the horizontal supporting position to a leaning-back using position relative to the supporting main body, the handrail panel is displaced backwards to suit the arms of the user, and the handrail supporting surface at the top end of the handrail panel is converted into a front-high rear-low state.

Description

Technical Field

[0001] This invention relates to the field of seating, and in particular to a method of using a rotating armrest on a chair. Background Technology

[0002] Seating is an indispensable tool for people's lives, studies, and work. People may sit for extended periods while performing various tasks, making seat comfort extremely important. As a component of the seat, the armrest plays a crucial role in providing comfort. Traditional seat armrests are fixed structures with no adjustment function; they cannot be raised or lowered, thus failing to accommodate people of different heights. They also cannot rotate, making it impossible to accommodate different armrest placement habits, and therefore cannot meet people's comfort requirements. To enrich the functionality of existing chairs, some designs incorporate rotating, raised, and movable armrests, allowing users to easily adjust them.

[0003] For example, Chinese invention patent CN201910465997.0 discloses "A Chair Armrest Adjustable in Multiple Directions," which includes an armrest located at the top and a support rod connected to the bottom of the armrest structure. The armrest includes a top support plate at the top, a bottom connecting plate detachably fastened to the top support plate, and a horizontal adjustment assembly disposed between the bottom connecting plate and the support rod. The horizontal adjustment assembly includes a rotational lateral movement structure that allows the top support plate to rotate and / or move laterally, and a forward and backward translational structure disposed between the rotational lateral movement structure and the bottom connecting plate that allows the top support plate to translate forward and backward. This application's design enables the chair armrest to move left and right, forward and backward, and also rotate. All components of this application are interlocked and cleverly coordinated to ensure multi-directional stability and flexible rotation while maintaining a simple and compact overall structure. However, the rotation and movement adjustments of these armrests are all performed horizontally within a horizontal plane. Most existing chairs, on the other hand, allow for reclining adjustments relative to the seat to enhance user comfort and facilitate daily use or rest. However, the backrest and armrests are separate components, with the armrests typically located on either side of the seat. This means that in a normal sitting position, the user's back rests against the backrest, and their hands rest comfortably on the armrests, providing adequate support for their back and elbows. However, when the user reclines, the backrest rotates backward, and the user's arms move further away from the armrests. Because the armrests can only be adjusted horizontally, the angle adjustment cannot synchronize with the backrest, significantly reducing comfort. The user's arms do not receive effective support when reclining.

[0004] To address the aforementioned issues, the armrests of the seats need to be able to adjust accordingly to the user's sitting and reclining positions to adapt to different usage states and provide effective support for the user's arms and elbows. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for using a rotating armrest on a seat; while the armrest panel rotates, the armrest support surface formed at the top of the armrest panel will also change angle; so that the armrest panel has a horizontal support position, a centrally located oblique support position, and a reclining position, which can provide the armrest support needs of users in different usage states.

[0006] The technical solution of this invention is implemented as follows: A method for using a rotating armrest on a chair includes the following steps: When the user sits on the chair in a seated position, the armrest panel is adjusted to a horizontal support position, so that the length direction of the armrest panel coincides with the front-to-back direction, and the armrest support surface at the top of the armrest panel is horizontal; or, the armrest panel is rotated from the horizontal support position relative to the support body toward the center of the chair to a centrally angled support position; as the armrest panel is rotated inward, the armrest support surface of the armrest panel will tilt relative to the horizontal plane, so that the height of the outer end of the armrest panel is higher than the height of the inner end of the armrest panel; when the user sits on the chair and reclines, the armrest panel is rotated 180° backward from the horizontal support position relative to the support body to a reclining position, and as the armrest panel moves backward to accommodate the user's arms, the armrest support surface at the top of the armrest panel changes to a front-high, back-low state.

[0007] Preferably, a rotating connector connects the armrest panel and the supporting body. A rotating mechanism is provided between the rotating connector and the supporting body, causing the rotating connector to rotate relative to the supporting body, thereby rotating the armrest panel. The rotating mechanism includes a shaft connection on the rotating connector and a rotating engagement part on the upper end of the armrest body. The shaft connection and the rotating engagement part are vertically aligned, and a first rotating inclined surface inclined relative to the horizontal plane is provided at the bottom end of the shaft connection. The upper end surface of the rotating engagement part is correspondingly inclined to form a second rotating inclined surface. From back to front, the second rotating inclined surface slopes forward and upward. During the rotation of the armrest panel relative to the supporting body, the rotational guidance between the first and second rotating inclined surfaces causes the angle of the armrest support surface at the top of the armrest panel to change simultaneously. The cooperation of the first and second rotating inclined surfaces allows the armrest panel to rotate while its angle changes.

[0008] Preferably, in the horizontal support position, the first rotating ramp and the second rotating ramp are aligned; during the process of rotating the armrest panel backward to the reclining position, the first rotating ramp rotates 180° relative to the second rotating ramp and aligns with it again. This allows the armrest panel to automatically switch to a front-high, rear-low position when reclining.

[0009] Preferably, the first and second rotating inclined planes are elliptical with the same profile; and the major axis of the second rotating inclined plane coincides with the front-to-back direction. This ensures that when the rotating connector rotates 180° backward, the armrest panel will remain in the front-to-back direction again; and the elliptical shape allows the armrest support surface to adaptively tilt at the centrally inclined support position.

[0010] Preferably, a sliding adjustment mechanism is provided between the armrest panel and the rotating connector, allowing the armrest panel to slide relative to the rotating connector along its length; in the reclining position, the armrest panel is moved forward and backward in an oblique direction relative to the rotating connector. This allows for further adjustment of the armrest panel's forward and backward position in the reclining position.

[0011] Preferably, in the horizontal support position, the rotating connector is angled forward and upward, with its front end connected to the front of the armrest panel, and the shaft connection located at the rear end of the rotating connector. This ensures that when the rotating connector rotates, the entire armrest panel will shift backward instead of rotating in place, thus accommodating the user's arm in a leaning position.

[0012] Preferably, the rotating mechanism further includes a rotating shaft disposed on the second rotating inclined surface and protruding upward, and a shaft hole correspondingly disposed on the first rotating inclined surface, the rotating shaft being rotatably inserted into the shaft hole; and the upper end of the shaft connection portion is recessed with a mounting groove communicating vertically with the shaft hole, and an adjusting limiting member is provided in the mounting groove for circumferential engagement and fixation with the rotating shaft. This prevents the rotating inclined shaft from disengaging from the rotating mating portion, allowing the rotating inclined shaft to rotate stably relative to the rotating mating portion.

[0013] Preferably, the upper end of the rotating shaft has an upwardly protruding locking protrusion located within the mounting groove; the bottom end of the adjusting limit member has a corresponding locking groove that engages with the locking protrusion. The adjusting limit member is embedded in the mounting groove so that the locking protrusion engages within the locking groove, and further, a longitudinal screw connects the adjusting limit member and the rotating shaft. This circumferentially fixes the adjusting limit member and the rotating shaft, and the screw secures the connection between them.

[0014] Preferably, a positioning mechanism is also provided between the adjusting limit member and the shaft connection. The adjusting limit member is a cam structure with a contracting end. The positioning mechanism includes several positioning slots recessed in the bottom wall of the mounting groove and corresponding positioning protrusions at the bottom of the contracting end of the adjusting limit member. The positioning slots are arranged in an arc shape in the mounting groove. The adjusting limit member is configured to press against the bottom wall of the mounting groove. Rotating the armrest panel drives the rotating connector to rotate, causing the positioning protrusions to engage with the corresponding positioning slots in sequence. The adjusting limit member is circumferentially fixed to the support body. When the rotating connector rotates relative to the support body, the positioning protrusions will rotate relative to the trajectory of the positioning slots, allowing the adjusting limit member to stop at multiple rotation positions during rotation, providing a clear sense of adjustment.

[0015] Preferably, in the horizontal support position, the rear end of the armrest panel is provided with a rearward and downward inclined support; in the reclining position, this rearward inclined support rotates to the front of the seat for easy hand gripping. The rearward inclined support provides convenient support for the user's elbow in the horizontal support position; while in the reclining position, it is convenient for the user's palm to grip, making the design more thoughtful.

[0016] The design starting point, concept, and beneficial effects of the present invention, which adopts the above technical solution, are as follows: The handrail of this invention differs from existing handrails that can only be rotated in place. Through the rotational guiding action of a first and second rotating inclined plane, the handrail support surface formed at the top of the handrail panel changes angle simultaneously during rotation, allowing the handrail to provide support for users in different usage states. This results in a reclining position where the handrail panel rotates 180° backward relative to the support body from a horizontal support position. In this reclining position, the first rotating inclined plane still aligns with the second rotating inclined plane after rotating 180°, and as the handrail panel rotates backward, the upper handrail support surface of the handrail panel shifts to a position that is higher in the front and lower in the back. This change in the handrail panel perfectly matches the position of the user's arms in the reclining position, ensuring effective support for the user's arms and elbows. Furthermore, a sliding adjustment mechanism is provided between the armrest panel and the rotating connector. The sliding adjustment mechanism is configured to allow the armrest panel to slide relative to the rotating connector along its length direction. Then, in the backward support position, the armrest panel can be further adjusted to slide diagonally in the front-back direction to adjust its position more precisely, making it more convenient to use.

[0017] Secondly, the armrest panel also features a centrally angled support position that tilts from the horizontal support position towards the center of the seat. In this position, the armrest panel allows users to comfortably read or play mobile games while seated. The user's arms can rest directly on the armrest panel in the center, resulting in high support comfort. Furthermore, the difference between this new type of armrest panel in the centrally angled support position and existing conventional rotatable armrests lies in the fact that, guided by the rotation of the first and second rotating inclined planes, the armrest support surface of this new design is tilted, with the outer end of the armrest panel being higher than the inner end. This creates an inclined surface with a lower inner side and a higher outer side, better suited to the user's posture of resting both arms centrally on the armrest panel, thus enhancing comfort. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the handrail in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection between the panel assembly and the supporting body in an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the handrail from another angle in an embodiment of the present invention; Figure 4 This is an exploded view of the connection between the panel assembly and the support body in an embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram of the present invention in which the adjusting limiting member is disposed in the shaft joint in an embodiment; Figure 6 This is a three-dimensional structural diagram of the armrest panel rotated to the central support position in an embodiment of the present invention; Figure 7 This is a three-dimensional structural diagram of the armrest panel rotated to the rearward support position in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the seat in an embodiment of the present invention; Figure 9 This is a three-dimensional structural diagram of the seat with the armrest body in the rearward support position in an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the handrail body in an embodiment of the present invention, showing further forward and backward sliding adjustment when the handrail body is in a backward support position. Figure 11 This is a three-dimensional structural diagram of the seat with the armrest body in a centrally supported position in an embodiment of the present invention; Figure 12 This is a three-dimensional structural diagram of the handrail support surface in an embodiment of the present invention, showing the handrail body in a centrally supported position.

[0019] The attached figures are labeled as follows: Support body 1; Panel assembly 2; Armrest panel 3; Rotating connector 4; Rotating mating part 5; Shaft connection part 6; Connecting cover 601; First rotating inclined surface 7; Second rotating inclined surface 8; Rotating shaft 9; Shaft hole 10; Mounting groove 11; Armrest support surface 12; Limiting adjustment part 13; Snap-fit ​​protrusion 14; Snap-fit ​​groove 15; Positioning slot 16; Positioning protrusion 17; Rear inclined support body 18; Backrest assembly A; Seat assembly B. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0022] In the description of this invention, the term "at least one" means one or more, unless otherwise expressly defined. The terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] This embodiment involves the reference orientation of each component, such as front and rear, and is described in the normal use state with the user seated behind the seat.

[0024] The specific embodiments of the present invention are as follows: like Figure 1-12 As shown, the present invention provides a method for using a rotating armrest on a seat; wherein the armrest includes a longitudinal support body 1 and a panel assembly 2 connected to the upper end of the support body 1; the support body 1 is connected to the side end of the seat, and the panel assembly 2 is connected to the upper end of the support body 1. The panel assembly 2 includes an armrest panel 3 for supporting the user's elbow and a rotating connector 4 connecting the panel assembly 2 and the support body 1; wherein a rotating mechanism is provided between the rotating connector 4 and the armrest body 1, allowing the rotating connector 4 to rotate circumferentially relative to the armrest body 1, thereby driving the armrest panel 3 to rotate and adjust relative to the armrest body 1. The rotating mechanism includes a shaft connection part 6 provided on the rotating connector 4 and a rotating engagement part 5 provided on the upper end of the armrest body 1; the shaft connection part 6 and the rotating engagement part 5 are vertically connected, and a first rotating inclined surface 7 inclined relative to the horizontal plane is provided at the bottom end of the shaft connection part 6, and the upper end surface of the rotating engagement part 5 is correspondingly inclined to form a second rotating inclined surface 8; and from back to front, the second rotating inclined surface 8 faces forward and upward; as shown Figure 1As shown, the handrail panel 3 has a horizontal support position. In this horizontal support position, the length direction of the handrail panel 3 coincides with the front-to-back direction, and the handrail support surface 12 formed at the top of the handrail panel 3 tends to be horizontal. The first rotating inclined plane 7 and the second rotating inclined plane 8 match, and the handrail can be used as a regular handrail. When the handrail panel 3 rotates relative to the support body 1 from the horizontal support position, under the rotational guiding action between the first rotating inclined plane 7 and the second rotating inclined plane 8, the handrail support surface 12 formed at the top of the handrail panel 3 changes angle simultaneously, so that the handrail has multiple usage forms.

[0025] Specifically, such as Figure 2-5 As shown, in the horizontal support position, the rotating support 4 is inclined forward and upward; the front end of the rotating support 4 is connected to the bottom end of the handrail panel 3, and the shaft connection 6 is located at the rear end of the rotating support 4. The rotating mechanism also includes a rotating shaft 9 located at the center of the second rotating inclined plane 8 and protruding upward, and a shaft hole 10 correspondingly located at the center of the first rotating inclined plane 7. The rotating shaft 9 rotatably passes through the shaft hole 10; and a mounting groove 11 that communicates vertically with the shaft hole 10 is recessed at the upper end of the shaft connection 6, and an adjusting limiting member 13 that is fixedly connected to the rotating shaft 9 is provided in the mounting groove 11. Specifically, the upper end of the rotating shaft 9 is provided with an upwardly protruding snap-fit ​​protrusion 14, which is located in the mounting groove 11; The bottom end of the adjusting limit member 13 is provided with a corresponding snap-fit ​​groove 15 that can engage with the snap-fit ​​protrusion 14. The adjusting limit member 13 is embedded in the mounting groove 11 so that the snap-fit ​​protrusion 14 is snapped into the snap-fit ​​groove 15, thereby fixing the adjusting limit member 13 and the rotating shaft 9 circumferentially. Furthermore, a longitudinal screw is connected between the adjusting limit member 13 and the rotating shaft 9, thereby fixing the connection between the two. The adjusting limit member 13 has a cam structure, which, after connection, can prevent the rotating connecting member 4 from disengaging from the support body 1, making the connection stable. Furthermore, a connecting cover 601 is provided at the upper end of the shaft connection part 6. This connecting cover 601 can cover the mounting groove 11 and improve the appearance.

[0026] like Figure 4 , 5As shown, a positioning mechanism is also provided between the adjusting limit member 13 and the shaft connection part 6. The adjusting limit member 13 is a cam structure and has a contracting end 112. The positioning mechanism includes a plurality of positioning slots 16 recessed on the bottom wall of the mounting groove 11 and positioning protrusions 17 correspondingly provided at the bottom end of the contracting end 112 of the adjusting limit member 13. The positioning slots 16 are arranged in an arc shape in the mounting groove 11. The adjusting limit member 13 is circumferentially fixed to the support body 1. When the rotating connector 4 rotates relative to the support body 1, the positioning protrusions 17 will rotate relative to the trajectory of the positioning slots 16. The adjusting limit member 13 is configured such that the positioning protrusions 17 press against the bottom wall of the mounting groove 11, so that the adjusting limit member 13 can stop at multiple rotation positions during rotation, with a clear sense of shifting.

[0027] like Figure 1-2 As shown in Figures 8-11, the first and second rotating inclined planes 7 and 8 are elliptical with identical outlines; and the major axis of the second rotating inclined plane 8 coincides with the front-to-back direction. Then, as... Figure 1 As shown, in the horizontal support position, the first rotating inclined plane 7 and the second rotating inclined plane 8 fit together, the armrest panel 3 is arranged in the front-to-back direction, and the armrest support surface 3 tends to be horizontal; and at the rear end of the armrest panel 3, there is also a rear inclined support body 18 that is inclined downwards and backwards, which facilitates support of the user's elbows and makes the body feel more comfortable.

[0028] like Figure 8-11 As shown, when the armrest is specifically applied to a seat: the support body 1 is connected to the side of the seat assembly B, and the backrest assembly A can tilt and rotate relative to the seat assembly B. Furthermore, by rotating the armrest panel 3 from its horizontal support position, the armrest support surface 12 at the upper end of the armrest panel 3 can be adjusted to different angles to meet the user's needs in different states. The specific usage method is as follows: Figure 11-12 As shown, when the user is seated in a seated position, the armrest panel 3 can be rotated from a horizontal support position towards the center of the seat to a centrally angled support position; at this time, the armrest panel 3 allows the user to conveniently read or play mobile games while seated. The user's arm can be directly rested on the armrest panel 3 in a central position, resulting in high support comfort. Furthermore, as... Figure 12 As shown, the difference between the handrail panel 3 in its centrally inclined support position and existing conventional rotatable handrails lies in the fact that, under the rotational guidance of the first rotating inclined surface 7 and the second rotating inclined surface 8, the handrail support surface 12 of the handrail panel 3 will be in an inclined state at this time. Specifically, as shown... Figure 12As shown: the height of the outer end of the armrest panel 3 will be higher than the height of the inner end of the armrest panel 3; thus, the armrest support surface 12 is an inclined surface with the inner side lower and the outer side higher; which is more suitable for the user to place both arms on the armrest panel 3 in the middle, thus making it more comfortable.

[0029] like Figure 9-10 As shown, when the user sits in the seat and reclines using the backrest assembly A, the backrest assembly A rotates backward, causing the user's arms to move backward simultaneously. At this time, the user can rotate the armrest panel 3 180° backward from its horizontal support position relative to the support body 1 to a reclining position. In this reclining position, the first rotating ramp 7, after rotating 180°, still aligns with the second rotating ramp 8. Simultaneously, as the armrest panel 3 rotates backward, the armrest support surface 12 at the upper end of the armrest panel 3 shifts to a position that is higher in the front and lower in the back. This change in the armrest panel 3 perfectly matches the position of the user's arms in the reclining position, ensuring effective support for the user's arms and elbows. Furthermore... Figure 10 As shown, a sliding adjustment mechanism is provided between the armrest panel 3 and the rotating connector 4. The sliding adjustment mechanism is configured to allow the armrest panel 3 to slide relative to the rotating connector 4 along its length direction. Furthermore, in the reclining support position, the armrest panel 3 can be further adjusted to slide diagonally in the front-back direction for more precise position adjustment, making it more convenient to use. This sliding adjustment mechanism is a common sliding structure in existing armrests that allows the armrest panel 3 to be adjusted front-back, so it will not be described in detail in this embodiment. In addition, in the reclining use position, the rear inclined support 18 can rotate to the front of the seat for easy hand gripping. This allows the rear inclined support 18 to conveniently support the user's elbow in the horizontal support position, while in the reclining use position, it is convenient for the user's palm to grip, demonstrating a more thoughtful design.

[0030] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A method for using a rotating armrest on a seat, characterized in that... Includes the following steps: The handrail includes a longitudinal support body and a panel assembly connected to the upper end of the support body; the panel assembly includes a handrail panel for supporting the user's elbow; a rotating connector is connected between the handrail panel and the support body, and a rotating mechanism is provided between the rotating connector and the support body. The rotating mechanism includes a shaft connection portion disposed on the rotating connector and a rotating engagement portion disposed at the upper end of the handrail body; the shaft connection portion and the rotating engagement portion are vertically connected, and a first rotating inclined surface inclined relative to the horizontal plane is provided at the bottom end of the shaft connection portion, and the upper end surface of the rotating engagement portion is correspondingly inclined to form a second rotating inclined surface; and from back to front, the second rotating inclined surface is inclined forward and upward; during the rotation of the handrail panel relative to the support body, the rotational guide between the first rotating inclined surface and the second rotating inclined surface causes the handrail support surface at the top of the handrail panel to change angle simultaneously; When the user is seated in the chair and in a seated position, adjust the armrest panel to the horizontal support position so that the length direction of the armrest panel coincides with the front and back direction, and the armrest support surface at the top of the armrest panel is in a horizontal state. Alternatively, the armrest panel can be rotated from a horizontal support position relative to the support body towards the center of the seat to a centrally angled support position; as the armrest panel is rotated inward, the armrest support surface of the armrest panel will be tilted relative to the horizontal plane, making the height of the outer end of the armrest panel higher than the height of the inner end of the armrest panel. When the user sits in the chair and leans back, the armrest panel is rotated 180° backward from the horizontal support position relative to the support body to the reclining position. As the armrest panel moves backward to accommodate the user's arms, the armrest support surface at the top of the armrest panel changes to a state where the front is higher than the back.

2. The method of using the rotating armrest on a seat according to claim 1, characterized in that: In the horizontal support position, the first rotating inclined plane and the second rotating inclined plane match; during the process of rotating the armrest panel backward to the reclining use position, the first rotating inclined plane rotates 180° relative to the second rotating inclined plane and matches with each other again.

3. The method of using the rotating armrest on a seat according to claim 2, characterized in that: The first and second rotating inclined planes are elliptical with the same outline; and the major axis of the second rotating inclined plane coincides with the front-back direction.

4. The method of using the rotating armrest on a seat according to claim 1, characterized in that: A sliding adjustment mechanism is provided between the armrest panel and the rotating connector, which allows the armrest panel to slide relative to the rotating connector along its length; in the reclining position, the armrest panel can be moved back and forth in an oblique direction relative to the rotating connector.

5. The method of using the rotating armrest on a seat according to claim 1, characterized in that: In the horizontal support position, the rotating connector is angled forward and upward, and the front end of the rotating connector is connected to the front of the armrest panel, while the shaft connection is located at the rear end of the rotating connector.

6. The method of using the rotating armrest on a seat according to claim 1, characterized in that: The rotating mechanism also includes a rotating shaft that is disposed on the second rotating inclined surface and protrudes upward, and a shaft hole that is disposed on the first rotating inclined surface. The rotating shaft is rotatably inserted into the shaft hole. The upper end of the shaft connection is recessed with a mounting groove that communicates vertically with the shaft hole. An adjusting limiter that is circumferentially engaged and fixed to the rotating shaft is disposed in the mounting groove.

7. The method of using the rotating armrest on a seat according to claim 6, characterized in that: An upwardly protruding snap-fit ​​protrusion is provided at the upper end of the rotating shaft, and the snap-fit ​​protrusion is located in the mounting groove; the bottom end of the adjusting limit member is correspondingly provided with a snap-fit ​​groove that can engage with the snap-fit ​​protrusion. The adjusting limit member is embedded in the mounting groove so that the snap-fit ​​protrusion is snapped in the snap-fit ​​groove, and further, a longitudinal screw is connected between the adjusting limit member and the rotating shaft.

8. The method of using the rotating armrest on a seat according to claim 6, characterized in that: A positioning mechanism is also provided between the adjusting limit member and the shaft connection part; the adjusting limit member is a cam structure, and the adjusting limit member has a contracting end. The positioning mechanism includes a number of positioning slots recessed on the bottom wall of the mounting groove and positioning protrusions correspondingly provided at the bottom end of the contracting end of the adjusting limit member; the positioning slots are arranged in an arc shape in the mounting groove; and the adjusting limit member is configured to make the positioning protrusions press against the bottom wall of the mounting groove; rotating the armrest panel drives the rotating connector to rotate, so that the positioning protrusions sequentially engage with the positioning slots at the corresponding positions.

9. The method of using the rotating armrest on a seat according to claim 1, characterized in that: In the horizontal support position, the rear end of the armrest panel is provided with a rear inclined support that slopes downwards; in the reclining position, the rear inclined support rotates to the front of the seat for easy hand gripping.

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