Armrest assembly and seat

Abstract

The utility model discloses an armrest assembly and a seat, and the armrest assembly comprises an armrest support which comprises a mounting shaft and a limiting shaft which are arranged at an interval; the supporting piece is arranged on the mounting shaft in a sleeving mode, an arc-shaped limiting groove is formed in the supporting piece, and the limiting shaft penetrates through the arc-shaped limiting groove; the armrest panel is rotatably connected to the mounting shaft and is in sliding fit with the supporting piece; when the armrest panel is subjected to acting force for driving the armrest panel to rotate, the supporting piece rotates relative to the armrest support along with the armrest panel, the limiting shaft moves relative to the arc-shaped limiting groove when the supporting piece rotates, and the groove walls at the two ends of the arc-shaped limiting groove are used for being matched with the limiting shaft in a stopping mode so as to limit the rotating range of the supporting piece and the armrest panel. According to the handrail assembly, even if the handrail panel rotates or slides to be adjusted to different angles / positions, the supporting piece can still stably support the handrail panel all the time, so that the handrail panel can bear large weight or external force, and the bearing capacity of the whole handrail is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat, especially handrail assembly and seat. BACKGROUND

[0002] In the office, study room and other places, the seat is generally visible, which can meet the needs of people sitting at work, study or rest. Generally speaking, the seat has a base, a backrest, a cushion, a handrail and other components, and the arm can be naturally placed on the handrail when people use the seat, and the handrail provides support for the arm.

[0003] In the related art seat, the handrail includes a handrail bracket and a handrail panel mounted on the handrail bracket, and the handrail panel has a position / angle adjustment function, that is, the handrail panel can be adjusted in position along the front and rear directions and can be adjusted in angle.

[0004] However, when the handrail panel is adjusted to a larger support angle (such as a larger inward / outward rotation angle), once the handrail panel bears a larger weight or external force (such as the force applied to the handrail by the user when standing up), it is easy to shake, deform or even break, the handrail has insufficient pressure bearing capacity, and the use experience is affected. SUMMARY

[0005] The main purpose of the utility model is to provide a handrail assembly, which aims to solve the technical problem of insufficient pressure bearing capacity of the handrail with position / angle adjustment function.

[0006] To achieve the above purpose, the utility model provides a handrail assembly, which comprises:

[0007] The handrail bracket comprises an installation shaft and a limiting shaft arranged at intervals;

[0008] The support member is sleeved on the installation shaft, and the support member is provided with an arc-shaped limiting groove, and the limiting shaft is arranged in the arc-shaped limiting groove;

[0009] The handrail panel is rotatably connected to the installation shaft and slidably connected to the support member;

[0010] When the handrail panel is subjected to an external force to drive it to rotate, the support member rotates relative to the handrail bracket along with the handrail panel, the limiting shaft moves relative to the arc-shaped limiting groove when the support member rotates, and the two end groove walls of the arc-shaped limiting groove are used for stop cooperation with the limiting shaft to limit the rotation range of the support member and the handrail panel.

[0011] In some embodiments, the support member is provided with first support protrusions on opposite sides along the width direction of the armrest panel, and the support member is provided with second support protrusions on opposite sides along the length direction of the armrest panel, wherein the height of the second support protrusion is lower than the height of the first support protrusion.

[0012] In some embodiments, the armrest bracket is provided with a plurality of grooves, the plurality of grooves being arranged around the mounting axis;

[0013] The support member has a protruding protrusion on the side facing the handrail bracket. The protrusion is used to extend into different grooves as the support member rotates.

[0014] In some embodiments, the support member is provided with a mounting hole, and the protrusion is movably received in the mounting hole;

[0015] The support member is provided with a first elastic element, which is installed in contact with the protrusion.

[0016] In some embodiments, the armrest bracket is provided with a friction strip that contacts the support member, one end of the limiting shaft passes through the arc-shaped limiting groove and is connected to a pressing plate, the pressing plate presses against the support member so that the support member and the friction strip are tightly fitted together, and the friction strip is used to rub against the support member when the support member rotates.

[0017] In some embodiments, the support member is provided with a shaft hole, and the support member is sleeved on the mounting shaft through the shaft hole to be rotatably connected to the handrail bracket;

[0018] The armrest panel is provided with a sliding groove, and the mounting shaft passes through the sliding groove into the armrest panel. The armrest panel is provided with a rotating component, which is rotatably connected to the mounting shaft, and the armrest panel can slide relative to the rotating component.

[0019] In some embodiments, the support member has a connecting portion on the side facing the armrest panel, the connecting portion passing through the groove into the armrest panel and connected to the rotating member.

[0020] In some embodiments, the armrest panel is provided with a receiving groove extending along its length, and the rotating member is received in the receiving groove;

[0021] The rotating component has elastic buckles on both sides of its opposite sides, and the receiving groove has multiple slots on its side wall. The multiple slots are spaced apart along the sliding direction of the armrest panel. The elastic buckles are used to engage with the slots to lock the armrest panel.

[0022] The rotating component is provided with a second elastic component, one end of which abuts against the elastic buckle on one side wall of the rotating component, and the other end abuts against the elastic buckle on the other side wall of the rotating component.

[0023] In some embodiments, the rotating member is provided with elastic arms on opposite sides along its width direction, and the elastic arms and the elastic buckle are offset along the height direction of the rotating member;

[0024] One end of the elastic arm is provided with a retaining protrusion, and the elastic arm abuts against the side wall of the receiving groove through the retaining protrusion.

[0025] In some embodiments, the armrest assembly further includes:

[0026] The control module is located on the armrest panel;

[0027] The control line has a cable pass-through opening on the rotating component and a cable pass-through hole on the supporting component, with one end of the control line connected to the control module and the other end of the control line passing through the cable pass-through opening and the cable pass-through hole in sequence to extend into the armrest bracket for connecting the power supply component and / or the controlled component of the seat.

[0028] In some embodiments, the armrest panel is provided with a first wire-locking structure, the rotating member is provided with a second wire-locking structure disposed opposite to the first wire-locking structure, and the control line is respectively locked in the first wire-locking structure and the second wire-locking structure;

[0029] The control line has an elastic telescopic section located between the first wire clamping structure and the second wire clamping structure. The elastic telescopic section is used to extend or shorten when the armrest panel slides.

[0030] The present invention also proposes a seat, which includes a base, a cushion and an armrest assembly as described above, the armrest assembly being disposed on the base or the cushion.

[0031] In this utility model of handrail assembly, the front / back position of the handrail panel can be adjusted by sliding it, or the opening angle of the handrail panel can be adjusted by rotating it. The handrail panel is supported by a support member. When the handrail panel is subjected to a force that drives it to rotate, the support member rotates along with the handrail panel relative to the handrail bracket. Therefore, even if the handrail panel is rotated or slid to different angles / positions, the support member will always maintain stable support for the handrail panel. This allows the handrail panel to withstand greater weight or external forces (such as the force exerted on the handrail when a user stands up) without easily wobbling, deforming, or even breaking, thus improving the overall load-bearing capacity of the handrail and enhancing the user experience. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of the seat in one embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the handrail assembly from one perspective in one embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the handrail assembly from another perspective in one embodiment of the present invention;

[0035] Figure 4 for Figure 2 A schematic diagram of a portion of the armrest assembly in the embodiment;

[0036] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0037] Figure 6 for Figure 2 A schematic diagram of another part of the armrest assembly in the embodiment;

[0038] Figure 7 for Figure 2 A schematic diagram of the support member of the handrail assembly in the embodiment from one perspective;

[0039] Figure 8 for Figure 2 An exploded view of the support member of the armrest assembly in the embodiment from another perspective;

[0040] Figure 9 for Figure 2 A schematic diagram of the handrail bracket of the handrail assembly in the embodiment;

[0041] Figure 10 for Figure 2 A schematic diagram of the rotating component of the armrest assembly in the embodiment. Detailed Implementation

[0042] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0043] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0045] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] This utility model embodiment proposes a handrail assembly 100, such as Figure 1 As shown, the armrest assembly 100 is applied to a seat. In addition to the armrest assembly 100, the seat also includes a base 200, a seat cushion 300, and a backrest 400. The seat cushion 300 is located on the base 200 and is used for the user to sit on, providing support for the user's buttocks and thighs. The backrest 400 is located behind the seat cushion 300 and connected to the base 200, used for the user to lean against, providing support for the user's back and waist. When the armrest assembly 100 is applied to the seat, there can be two armrest assemblies 100, with the two armrest assemblies 100 respectively located on the left and right sides of the seat cushion 300 to provide support for the user's left and right arms respectively.

[0047] Reference Figures 2 to 6 The armrest assembly 100 includes:

[0048] The handrail bracket 110 includes a spaced-apart mounting shaft 111 and a limiting shaft 112;

[0049] The support member 120 is sleeved on the mounting shaft 111. The support member 120 is provided with an arc-shaped limiting groove 121, and the limiting shaft 112 passes through the arc-shaped limiting groove 121.

[0050] The armrest panel 130 is rotatably connected to the mounting shaft 111 and slides in engagement with the support member 120;

[0051] When the handrail panel 130 is subjected to a force that drives it to rotate, the support member 120 rotates together with the handrail panel 130 relative to the handrail bracket 110. When the support member 120 rotates, the limiting shaft 112 moves relative to the arc-shaped limiting groove 121. The two end walls of the arc-shaped limiting groove 121 are used to cooperate with the limiting shaft 112 to limit the rotation range of the support member 120 and the handrail panel 130.

[0052] In the handrail assembly 100 involved in this embodiment, the handrail bracket 110 serves as the structural foundation of the handrail assembly 100, providing stable support for the installation and movement of other components. For example... Figure 1 and Figure 2 As shown, the armrest bracket 110 is generally rod-shaped or columnar and can be mounted on the seat cushion 300 bracket or base 200 of the seat. It has sufficient strength and rigidity to withstand various forces acting on the armrest assembly 100 during use. The top of the armrest bracket 110 has a mounting shaft 111 and a limiting shaft 112, which can be spaced apart along the front-back direction of the seat. The mounting shaft 111 serves as the core component for the rotational support of the entire armrest assembly 100, providing a stable shaft connection / fitting basis for the rotation of the support member 120 and the armrest panel 130, ensuring smooth and stable rotation.

[0053] The handrail panel 130, as the part directly in contact with the user, is rotatably connected to the mounting shaft 111, allowing the user to easily adjust the angle of the handrail panel 130 according to their needs. The support member 120, as one of the key structures in this solution for improving the handrail's load-bearing capacity, is sleeved on the mounting shaft 111, effectively distributing the pressure borne by the handrail panel 130 and evenly transferring the pressure to the handrail bracket 110. The support member 120 can be a plate or a base structure, etc., and is located between the handrail bracket 110 and the handrail panel 130, supporting the handrail panel 130 from its bottom surface. Furthermore, the handrail panel 130 and the support member 120 are in sliding engagement. For example,... Figure 3 As shown, the bottom of the armrest panel 130 is recessed with a mounting groove 131 extending along its length. The armrest panel 130 is accommodated in the mounting groove 131 to form a sliding fit with the armrest panel 130. With this sliding fit structure, the armrest panel 130 can slide relative to the support member 120 to adjust its position. The support member 120 will not interfere with the sliding movement of the armrest panel 130. Furthermore, when the armrest panel 130 rotates, the support member 120 can rotate together with the armrest panel 130.

[0054] The arc-shaped limiting groove 121 on the support member 120 and the limiting shaft 112 of the handrail bracket 110 are designed to control the rotation angle of the support member 120, thereby controlling the angle adjustment range of the handrail panel 130. Moreover, a stable limiting relationship is formed in the structure to prevent structural damage or instability caused by excessive rotation of the handrail panel 130.

[0055] Specifically, when a user applies a force to the armrest panel 130 to drive it to rotate, since the armrest panel 130 is rotatably connected to the mounting shaft 111, the armrest panel 130 can begin to rotate about the mounting shaft 111 as the center of rotation. Simultaneously, the support member 120 is sleeved on the mounting shaft 111 and slides with the armrest panel 130, causing the support member 120 to rotate relative to the armrest bracket 110 along with the rotation of the armrest panel 130. During this process, such as... Figure 6 As shown, the limiting shaft 112 passes through the arc-shaped limiting groove 121 of the support member 120. As the support member 120 rotates, the limiting shaft 112 will move relative to the arc-shaped limiting groove 121.

[0056] As the support member 120 and the armrest panel 130 rotate, the limiting shaft 112 gradually approaches one end of the arc-shaped limiting groove 121. Once the limiting shaft 112 contacts one end of the arc-shaped limiting groove 121, it will be blocked by the groove wall and unable to move further in that direction, thus limiting the continued rotation of the support member 120 and the armrest panel 130, and thus determining the rotation range of the support member 120 and the armrest panel 130. For example, if the user attempts to rotate the armrest panel 130 excessively clockwise, when the limiting shaft 112 abuts against the clockwise end of the arc-shaped limiting groove 121, the armrest panel 130 and the support member 120 will no longer be able to continue rotating clockwise; conversely, if rotating counterclockwise, the rotation will also stop when the limiting shaft 112 abuts against the counterclockwise end of the groove.

[0057] The pressure bearing principle is:

[0058] When the handrail panel 130 is subjected to pressure by a user leaning against it or other external forces, the pressure is first applied to the handrail panel 130. Due to the sliding fit between the handrail panel 130 and the support member 120, and the structural design of the support member 120 being sleeved on the mounting shaft 111 and moving in tandem with the handrail panel 130, the pressure is transmitted to the support member 120 through the handrail panel 130.

[0059] The support member 120 evenly distributes the pressure it bears to the contact points with the mounting shaft 111 and the handrail bracket 110, while resisting the deformation caused by the pressure through its own structural strength. Due to the presence of the support member 120, the pressure on the handrail panel 130 is no longer concentrated at the connection point with the mounting shaft 111, but forms a more stable force-bearing system through the support member 120, effectively improving the pressure-bearing capacity of the entire handrail assembly 100.

[0060] In addition, when the armrest panel 130 is at different rotation angles, the support member 120 can maintain support for the armrest panel 130 as it rotates, ensuring that it can reliably withstand pressure at various angles and avoiding the problem of reduced pressure bearing capacity due to angle changes.

[0061] That is, the armrest panel 130 is supported by the support member 120. When the armrest panel 130 is subjected to a force that drives it to rotate, the support member 120 will rotate with the armrest panel 130 relative to the armrest bracket 110. Therefore, even if the armrest panel 130 is rotated or slid to different angles / positions, the support member 120 will always maintain stable support for the armrest panel 130, so that the armrest panel 130 can withstand greater weight or external force (such as the force applied to the armrest when the user gets up), and will not easily wobble, deform or even break, thus improving the overall pressure resistance of the armrest and helping to improve the user experience.

[0062] In some embodiments, refer to Figure 7 The support member 120 is provided with a first support protrusion 1221 on each side of the width direction of the handrail panel 130, and a second support protrusion 1222 on each side of the length direction of the handrail panel 130. The height of the second support protrusion 1222 is lower than the height of the first support protrusion 1221.

[0063] Along the width of the armrest panel 130, the support member 120 has first support protrusions 1221 on opposite sides (which can be considered as the left and right sides). These first support protrusions 1221 can be strip-shaped protrusions extending along the length of the armrest panel 130. Under normal use, the first support protrusions 1221 provide the main support, maintaining close contact with the armrest panel 130 to provide stable support and ensure that the user feels a uniform and firm support force when placing their arm. Furthermore, the first support protrusions 1221 also provide friction to the armrest panel 130, preventing it from sliding due to external forces and enhancing the stability of the armrest during use.

[0064] Along the length of the armrest panel 130, second support protrusions 1222 are provided on opposite sides (which can be considered as the front and rear sides) of the support member 120. The second support protrusions 1222 can be block-shaped protrusions, and multiple second support protrusions 1222 can be provided. Since the height of the second support protrusions 1222 is lower than the height of the first support protrusions 1221, there is a slight gap between the second support protrusions 1222 and the armrest panel 130 under normal use, and they do not participate in the support process, remaining in a standby state.

[0065] For example, after prolonged use of the armrest panel 130's position adjustment function, the sliding of the armrest panel 130 relative to the support member 120 will cause wear on the first support protrusion 1221. The height of the first support protrusion 1221 may decrease, altering the contact condition with the armrest panel 130 and causing slight sagging of the armrest panel 130 in certain locations, affecting the flatness and stability of the support. However, when the wear of the first support protrusion 1221 reaches a certain level, and the armrest panel 130 continues to bear pressure or friction, due to the slight deformation of the armrest panel 130, the second support protrusion 1222, which was not initially in contact, gradually begins to contact the armrest panel 130, assuming some of the support force or providing frictional resistance between the armrest panel 130 and the support member 120. As the pressure further increases, the second support protrusion 1222 can effectively compensate for the insufficient support caused by the wear of the first support protrusion 1221, restoring the support state of the armrest panel 130 and ensuring its continued normal use.

[0066] For example, when the armrest panel 130 is slidably adjusted to a forward or backward position, and a large pressure is applied to the front or rear end of the armrest panel 130, the armrest panel 130 is prone to tilting forward or backward due to uneven force distribution. When the armrest panel 130 shows a slight tilting tendency, the second support protrusion 1222 can play a timely role. Since its position is along the length of the armrest panel 130, the gap between it and the armrest panel 130 can be quickly reduced until contact is made when the armrest panel 130 tilts, thereby effectively preventing further tilting of the armrest panel 130, ensuring the flatness and stability of the armrest panel 130, so that even under large uneven force conditions, the armrest panel 130 can still maintain a relatively horizontal position, providing reliable support for the user.

[0067] In some embodiments, refer to Figure 8 and Figure 9 The handrail bracket 110 is provided with multiple grooves 113, which are arranged around the mounting shaft 111;

[0068] The support member 120 has a protrusion 123 on the side facing the handrail bracket 110. The protrusion 123 is used to extend into different grooves 113 as the support member 120 rotates.

[0069] To optimize the adjustability and user experience of the handrail, a mating structure can be designed between the groove 113 of the handrail bracket 110 and the protrusion 123 on the support member 120. Multiple grooves 113 are arranged around the mounting shaft 111 on the handrail bracket 110 to provide precise positioning and stopping functions for the rotation of the support member 120 and the handrail panel 130, thereby making the position adjustment of the handrail panel 130 more accurate and stable. The number and spacing of the grooves 113 can be set according to actual needs; for example, there can be 5 or 7 grooves. On the side of the support member 120 facing the handrail bracket 110, the protrusion 123 protrudes, and the size and shape of the protrusion 123 are adapted to the groove 113 to ensure that it can accurately extend into different grooves 113 during the rotation of the support member 120.

[0070] When a user applies rotational force to the armrest panel 130, the support member 120 rotates with the armrest panel 130, and the protrusion 123 moves along the surface of the armrest bracket 110. When it encounters the next groove 113, it will naturally engage in the groove 113, thereby generating a clear sense of scale. This allows the user to clearly perceive that the armrest panel 130 has been rotated and adjusted to a new angle. In other words, through the cooperation between the protrusion 123 and the groove 113, a sense of scale can be generated during the rotation of the armrest panel 130, so that the user can perceive the change in the armrest angle and provide rotational feedback to the user.

[0071] When the armrest panel 130 rotates, the protrusion 123 disengages from the groove 113 and makes a hard collision with the surface of the armrest bracket 110, which can easily generate obvious noise. This noise can cause an unpleasant experience for users, especially when the angle of the armrest panel 130 is frequently adjusted. It can also cause interference in some noise-sensitive environments, such as offices, libraries, and conference room benches.

[0072] In some embodiments, refer to Figure 7 and Figure 8 The support member 120 is provided with a mounting hole 120K, and the protrusion 123 is movably accommodated in the mounting hole 120K;

[0073] The support member 120 is provided with a first elastic member 124, which is installed in contact with the protrusion 123.

[0074] The mounting hole 120K of the support member 120 is located at its bottom and is adapted to the protrusion 123. The protrusion 123 is within the mounting hole 120K of the support member 120, allowing for a certain degree of flexible displacement of the support member 120. One side of the protrusion 123 is used to extend into the groove 113, and the first elastic member 124 is located on the other side of the protrusion 123 and contacts the protrusion 123. Optionally, the support member 120 is constructed with a mounting cavity that communicates with the mounting hole 120K. The first elastic member 124 is accommodated in the mounting cavity to contact and install with the protrusion 123. The first elastic member 124 may be an elastic silicone block, including but not limited to this.

[0075] During the angle adjustment of the armrest panel 130, when the protrusion 123 disengages from the groove 113, the elastic element 124 provides a certain degree of cushioning to the movement of the protrusion 123 due to its elasticity. Specifically, the first elastic element 124 is gradually compressed, absorbing some of the kinetic energy of the protrusion 123, making the contact process between the protrusion 123 and the surface of the armrest support 110 relatively gentle. This cushioning effect not only reduces the impact force generated at the moment of collision between the protrusion 123 and the surface of the armrest support 110, but also reduces the noise generated by the collision.

[0076] In some embodiments, refer to Figure 6 and Figure 9 The handrail bracket 110 is provided with a friction strip 114 that contacts the support member 120. One end of the limiting shaft 112 passes through the arc-shaped limiting groove 121 and is connected to a pressing plate 115. The pressing plate 115 presses against the support member 120 so that the support member 120 and the friction strip 114 are tightly fitted together. The friction strip 114 is used to rub against the support member 120 when the support member 120 rotates.

[0077] On the surface of the armrest bracket 110, friction strips 114 extend along the rotation direction of the support member 120. One or more friction strips 114 can be provided, depending on actual needs. The friction strips 114 are used to rub against the support member 120 during the angle adjustment of the armrest panel 130. The friction strips 114 have an appropriate coefficient of friction, ensuring sufficient resistance when the support member 120 rotates without making the rotation process too strenuous, achieving a balanced adjustment feel. Furthermore, by providing a pressing plate 115 on the limiting shaft 112 to press against the support member 120, the support member 120 and the friction strips 114 can always maintain a tight fit. The pressing plate 115 is detachably connected to the limiting shaft 112, and the connection method includes screw connection, etc. This pressing structure is ingeniously designed to ensure stable friction between the support member 120 and the friction strips 114 on the armrest bracket 110. When the user applies rotational force to the armrest panel 130, the support member 120 generates continuous friction between itself and the friction strip 114 due to the pressure of the pressing plate 115 during rotation. This friction not only provides damping for the rotation of the armrest panel 130, allowing the user to clearly perceive the adjustment force and position changes, but also effectively prevents the armrest from rotating accidentally due to external interference after it is adjusted to a specific position, thus enhancing the stability of the armrest during use.

[0078] In some embodiments, refer to Figures 4 to 8 The support member 120 is provided with a shaft hole 120Z. The support member 120 is sleeved on the mounting shaft 111 through the shaft hole 120Z to be rotatably connected to the handrail bracket 110.

[0079] The handrail panel 130 is provided with a slide groove 130C, and the mounting shaft 111 passes through the slide groove 130C into the handrail panel 130. The handrail panel 130 is provided with a rotating member 140, which is rotatably connected to the mounting shaft 111. The handrail panel 130 can slide relative to the rotating member 140.

[0080] like Figures 6 to 8 As shown, the shaft hole 120Z of the support member 120 is adapted to the mounting shaft 111, so that the support member 120 can be sleeved on the mounting shaft 111 through the shaft hole 120Z, thereby realizing a rotatable connection with the handrail bracket 110. This structural setting allows the support member 120 to rotate flexibly during the angle adjustment of the handrail panel 130.

[0081] like Figure 4 and Figure 5As shown, the sliding groove 130C of the armrest panel 130 is located at its bottom and extends along the length of the armrest panel 130. A mounting shaft 111 passes through the sliding groove 130C into the armrest panel 130. When the armrest panel 130 slides to adjust its position, the mounting shaft 111 moves relative to the sliding groove 130C, causing a positional change. The arrangement of the mounting shaft 111 within the sliding groove 130C provides crucial guidance and support for the rotation and sliding of the armrest panel 130. Optionally, the armrest panel 130 includes a bottom shell and a top cover. The top cover is detachably mounted on the bottom shell and forms a receiving cavity with the bottom shell. A rotating member 140 is located within the receiving cavity, and the sliding groove 130C is constructed on the bottom shell.

[0082] Meanwhile, the rotating component 140 within the armrest panel 130 can be made of high-quality wear-resistant material, such as high-strength nylon or metal alloy. It can be provided with a socket to tightly fit onto the mounting shaft 111 and can rotate around the mounting shaft 111. The armrest panel 130 and the rotating component 140 within it are in sliding engagement. This sliding engagement can be achieved using a sliding groove 130C or a slider mechanism, among other things. Since the rotating component 140 is rotatably connected to the mounting shaft 111, and the armrest panel 130 is in sliding engagement with the rotating component 140, it can be considered that the armrest panel 130 is rotatably connected to the mounting shaft 111 via the rotating component 140.

[0083] When the position of the armrest panel 130 needs to be adjusted, the armrest panel 130 slides forward or backward relative to the rotating member 140 to adjust its position. When the angle of the armrest panel 130 needs to be adjusted, it is adjusted by rotating the rotating member 140 to rotate left or right around the mounting shaft 111.

[0084] In some embodiments, refer to Figure 6 and Figure 7 The support member 120 has a connecting portion 120B on the side facing the armrest panel 130. The connecting portion 120B passes through the slide groove 130C into the armrest panel 130 and connects to the rotating member 140. In this embodiment, the support member 120 is connected to the rotating member 140 through the connecting portion 120B. When the armrest panel 130 rotates to adjust its angle or slides to adjust its position, the support member 120 and the rotating member 140 can combine as a stable and coordinated whole, achieving action coordination with the armrest panel 130. This helps improve structural stability and makes the rotation or sliding of the armrest panel 130 smoother and more precise. For example, when the armrest panel 130 rotates, the combination of the support member 120 and the rotating member 140 rotates accordingly; when the armrest panel 130 slides, it slides relative to the combination of the support member 120 and the rotating member 140. The connecting portion 120B and the rotating member 140 can be connected by fasteners such as screws.

[0085] In some embodiments, refer to Figure 5 and Figure 10 The handrail panel 130 is provided with a receiving groove 130R extending along its length, and the rotating part 140 is received in the receiving groove 130R.

[0086] The rotating part 140 is provided with elastic buckles 10 on both opposite side walls. The groove side wall of the receiving groove 130R is provided with multiple slots 20. The multiple slots 20 are spaced apart along the sliding direction of the handrail panel 130. The elastic buckles 10 are used to engage with the slots 20 to lock the handrail panel 130.

[0087] A second elastic member 141 is provided on the rotating member 140. One end of the second elastic member 141 abuts against the elastic buckle 10 on one side wall of the rotating member 140, and the other end abuts against the elastic buckle 10 on the other side wall of the rotating member 140.

[0088] When the armrest panel 130 is stationary, the elastic latches 10 on both sides of the rotating component 140 engage with the corresponding slots 20 on the side wall of the receiving groove 130R under their own elastic force. The elastic latches 10 and the inner wall of the slots 20 are tightly fitted to form a stable locking structure, which effectively restricts the sliding of the armrest panel 130, thereby ensuring that the armrest panel 130 remains in its current position and will not accidentally slide or shift due to external forces.

[0089] When the position of the armrest panel 130 needs to be adjusted, the user can apply appropriate external force to the armrest panel 130 to compress and deform the elastic buckle 10, overcoming its elasticity to disengage from the current slot 20, and then slide the armrest panel 130 to adjust its position. When the armrest panel 130 has slid to the appropriate position, the user stops applying external force. At this time, the elastic buckle 10 returns to its original shape under its own elasticity and locks into the corresponding slot 20 of the receiving groove 130R, thereby locking the armrest panel 130.

[0090] The rotating component 140 can be a frame structure with a hollow center. Elastic buckles 10 are formed on both sides of the frame. A second elastic component 141 is housed within the frame and abuts against both sides of the frame, thereby achieving contact between the rotating component 140 and the elastic buckles 10 on the opposite side walls. The second elastic component 141 can be made of a material with an appropriate elastic coefficient and good shock absorption performance, such as a coil spring or elastic silicone block. Its function is to provide a buffer for the elastic buckles 10 during their disengagement from the slot 20, reducing the impact and vibration caused by the disengagement of the elastic buckles 10, thereby achieving shock absorption and noise reduction.

[0091] In some embodiments, refer to Figure 5 and Figure 10The rotating component 140 is provided with elastic arms 142 on opposite sides along its width direction, and the elastic arms 142 and the elastic buckle 10 are offset along the height direction of the rotating component 140.

[0092] One end of the elastic arm 142 is provided with a retaining protrusion 1421, and the elastic arm 142 abuts against the side wall of the receiving groove 130R through the retaining protrusion 1421.

[0093] The elastic arm 142 on the side of the rotating component 140 naturally opens slightly outward when not under force, possessing a certain elastic deformation capability. When the rotating component 140 is installed into the receiving groove 130R, the elastic arm 142 is squeezed inward by the side wall of the receiving groove 130R and retracts inward. At the same time, due to the elastic characteristics of the elastic arm 142, the abutment protrusion 1421 can fit tightly against the side wall of the receiving groove 130R. By abutting the protrusion 1421, the elastic arm 142 tightly abuts against the side wall of the receiving groove 130R, effectively eliminating the gap between the rotating component 140 and the side wall of the receiving groove 130R, making the installation of the rotating component 140 in the receiving groove 130R more stable, and greatly reducing the swaying and displacement of the rotating component 140 when the handrail panel 130 rotates or is subjected to external force. Furthermore, it avoids mutual collision and friction between the rotating part 140 and the side wall of the receiving groove 130R due to the gap, thus reducing noise generation.

[0094] In some embodiments, refer to Figures 2 to 5 , Figures 7 to 8 The armrest assembly 100 also includes:

[0095] The control module 150 is located on the handrail panel 130;

[0096] The control line has a cable pass-through port 140K on the rotating part 140 and a cable pass-through hole 120K on the support part 120, which is opposite to the position of the cable pass-through port 140K. One end of the control line is connected to the control module 150, and the other end of the control line passes through the cable pass-through port 140K and the cable pass-through hole 120K in sequence and extends into the armrest bracket 110 to connect the power supply component and / or the controlled component of the seat.

[0097] The control module 150 can be embedded in the armrest panel 130 and exposed on the surface of the armrest panel 130. The control module 150 can integrate control buttons, indicator lights, or display screens, allowing users to control the seat's functions by operating the control module 150. The control cable, which connects the control module 150 to other components of the seat, is designed to be hidden within the armrest bracket 110 and armrest panel 130, avoiding exposure and improving aesthetics. This also prevents wiring failures due to external environmental influences, enhancing reliability and safety. Specifically, one end of the control cable connects to the control module 150 using a reliable plug-in or soldering method to ensure stable electrical signal transmission. The other end of the control cable passes through the cable pass-through port 140K of the rotating component 140 and the cable pass-through hole 120K of the support component 120 to extend into the armrest bracket 110, and finally connects to the power supply components and / or controlled components of the seat, completing the electrical circuit. The power supply component can be a control power supply, and the controlled component can be a specific functional component such as an electric actuator. The size and shape of the cable passage 140K on the rotating component 140 and the cable hole 120K on the supporting component 120 are adapted to the outer diameter of the control cable, ensuring that the control cable can pass through smoothly without affecting the rotational performance of the rotating component 140 and the supporting component 120. When the handrail panel 130 rotates and slides, the control cable can move freely within the cable passage 140K and the cable hole 120K without being subjected to excessive bending or pulling.

[0098] In some embodiments, refer to Figure 4 and Figure 5 The armrest panel 130 is provided with a first wire-locking structure K1, and the rotating part 140 is provided with a second wire-locking structure K2 that is opposite to the first wire-locking structure. The control line is respectively locked in the first wire-locking structure K1 and the second wire-locking structure K2.

[0099] The control line has an elastic telescopic section located between the first wire clamping structure K1 and the second wire clamping structure K2. The elastic telescopic section is used to extend or shorten when the handrail panel 130 slides.

[0100] Within the handrail panel 130, the first wire-locking structure K1 can be a first wire-locking groove. The shape and size of the first wire-locking groove are adapted to the outer diameter of the control wire, enabling it to tightly hold the control wire and prevent it from moving freely inside the handrail panel 130. Furthermore, one or multiple first wire-locking grooves can be provided. The first wire-locking structure K1 can be arranged along the approximate path of the control wire within the handrail panel 130, and can be located at one end of the rotating member 140 to coordinate with the second wire-locking structure K2 on the rotating member 140, jointly providing effective fixation and guidance for the control wire.

[0101] The second wire-locking structure K2 on the rotating component 140 corresponds to the first wire-locking structure K1 inside the armrest panel 130. The second wire-locking structure K2 can be a second wire-locking groove on the surface of the rotating component 140, and its shape and position are matched with the first wire-locking structure K1. When the rotating component 140 and the armrest panel 130 are assembled together, a complete wire-locking channel can be formed to stably fix the control line in the predetermined position.

[0102] A specific section of the control line is designed as a flexible telescopic segment, located between the first wire clamping structure K1 and the second wire clamping structure K2. The flexible telescopic end can be spiral-shaped, allowing it to be stretched or naturally shortened. The flexible telescopic segment is made of materials with good elasticity and conductivity, such as rubber-coated metal wire or specially formulated flexible conductive plastic. Its outer rubber or plastic material has wear-resistant, insulating, and bending-resistant properties, protecting the internal conductive core wire while providing the necessary elasticity.

[0103] When a user applies an external force to the armrest panel 130, causing it to slide, the armrest panel 130 undergoes relative displacement with respect to the rotating component 140. At this time, the elastic extension segment of the control line located between the first wire-locking structure K1 and the second wire-locking structure K2 begins to function. For example, if the armrest panel 130 slides towards the front of the seat, the elastic extension segment will be stretched, and the elastic material inside will deform accordingly to accommodate the movement of the armrest panel 130, while ensuring that the conductive core of the control line does not break, allowing for continuous and stable transmission of electrical signals. Conversely, if the armrest panel 130 slides towards the rear of the seat, the elastic extension segment will shorten under its own elastic restoring force, similarly without affecting the normal operation of the control line.

[0104] The elastic telescopic design of this section of the control line cleverly solves the problem of its length change during the sliding of the armrest panel 130, allowing the control line to freely extend and retract with the movement of the armrest panel 130 without affecting its electrical performance, greatly improving the flexibility and adaptability of the armrest assembly 100.

[0105] This utility model also proposes a seat, referring to... Figure 1 The seat includes a base 200, a seat cushion 300, and an armrest assembly 100 as described above. The armrest assembly 100 is disposed on the base 200 or the seat cushion 300. The specific structure of the armrest assembly 100 is as described in the above embodiments. Since this seat adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The number of armrest assemblies 100 can be two, with the two armrest assemblies 100 respectively disposed on the left and right sides of the seat cushion 300.

[0106] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A handrail assembly, characterized in that, include: Handrail bracket, including spaced mounting shafts and limiting shafts; A support member is sleeved on the mounting shaft, the support member is provided with an arc-shaped limiting groove, and the limiting shaft passes through the arc-shaped limiting groove; The armrest panel is rotatably connected to the mounting shaft and slides in cooperation with the support member; When the handrail panel is subjected to a force that drives it to rotate, the support member rotates together with the handrail panel relative to the handrail bracket. When the support member rotates, the limiting shaft moves relative to the arc-shaped limiting groove. The two end walls of the arc-shaped limiting groove are used to cooperate with the limiting shaft to stop, thereby limiting the rotation range of the support member and the handrail panel.

2. The armrest assembly according to claim 1, characterized in that, The support member has a first support protrusion on each of its opposite sides along the width direction of the armrest panel, and a second support protrusion on each of its opposite sides along the length direction of the armrest panel. The height of the second support protrusion is lower than the height of the first support protrusion.

3. The armrest assembly according to claim 1, characterized in that, The handrail bracket is provided with multiple grooves, which are arranged around the mounting axis; The support member has a protruding protrusion on the side facing the handrail bracket. The protrusion is used to extend into different grooves as the support member rotates.

4. The handrail assembly according to claim 3, characterized in that, The support member is provided with mounting holes, and the protrusion is movably accommodated in the mounting holes; The support member is provided with a first elastic element, which is installed in contact with the protrusion.

5. The armrest assembly according to claim 1, characterized in that, The handrail bracket is provided with a friction strip that contacts the support member. One end of the limiting shaft passes through the arc-shaped limiting groove and is connected to a pressing plate. The pressing plate presses against the support member so that the support member and the friction strip are tightly fitted together. The friction strip is used to rub against the support member when the support member rotates.

6. The armrest assembly according to claim 1, characterized in that, The support member is provided with a shaft hole, and the support member is sleeved on the mounting shaft through the shaft hole to be rotatably connected to the handrail bracket; The armrest panel is provided with a sliding groove, and the mounting shaft passes through the sliding groove into the armrest panel. The armrest panel is provided with a rotating component, which is rotatably connected to the mounting shaft, and the armrest panel can slide relative to the rotating component.

7. The handrail assembly according to claim 6, characterized in that, The support member has a connecting part on the side facing the armrest panel. The connecting part passes through the slide groove into the armrest panel and is connected to the rotating member.

8. The handrail assembly according to claim 6, characterized in that, The armrest panel is provided with a receiving groove extending along its length, and the rotating component is received in the receiving groove. The rotating component has elastic buckles on both sides of its opposite sides, and the receiving groove has multiple slots on its side wall. The multiple slots are spaced apart along the sliding direction of the armrest panel. The elastic buckles are used to engage with the slots to lock the armrest panel. The rotating component is provided with a second elastic component, one end of which abuts against the elastic buckle on one side wall of the rotating component, and the other end abuts against the elastic buckle on the other side wall of the rotating component.

9. The armrest assembly according to claim 8, characterized in that, The rotating component is provided with elastic arms on opposite sides along its width direction, and the elastic arms and the elastic buckle are offset along the height direction of the rotating component. One end of the elastic arm is provided with a retaining protrusion, and the elastic arm abuts against the side wall of the receiving groove through the retaining protrusion.

10. The armrest assembly according to claim 6, characterized in that, Also includes: The control module is located on the armrest panel; The control line has a cable pass-through opening on the rotating component and a cable pass-through hole on the supporting component, with one end of the control line connected to the control module and the other end of the control line passing through the cable pass-through opening and the cable pass-through hole in sequence to extend into the armrest bracket for connecting the power supply component and / or the controlled component of the seat.

11. The armrest assembly according to claim 10, characterized in that, The armrest panel is provided with a first wire-locking structure, the rotating component is provided with a second wire-locking structure that is opposite to the first wire-locking structure, and the control line is respectively locked in the first wire-locking structure and the second wire-locking structure. The control line has an elastic telescopic section located between the first wire clamping structure and the second wire clamping structure. The elastic telescopic section is used to extend or shorten when the armrest panel slides.

12. A type of seat, characterized in that, It includes a base, a seat cushion, and an armrest assembly as described in any one of claims 1 to 11, the armrest assembly being disposed on the base or the seat cushion.

Images