Armrest components and seats

Abstract

This utility model discloses an armrest assembly and a seat. The seat includes a seat and a backrest. The armrest assembly includes an armrest body, which is provided with a trigger for controlling the seat height adjustment and / or the backrest rotation. The backrest has a first connecting part and a second connecting part. The first connecting part is rotatably connected to the seat, and the second connecting part is connected to the armrest body. The armrest body is configured to follow the rotation of the backrest to drive the trigger, thereby keeping the minimum distance between the trigger and the second connecting part constant. In this utility model, no matter what angle the backrest is adjusted to, the trigger always maintains a constant minimum distance from the second connecting part, and the user's hand can operate the trigger in a natural posture supported by the armrest body.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to armrest components and seats. Background Technology

[0002] A chair typically includes chair legs, a seat, a backrest, and armrests. The seat can be raised and lowered relative to the chair legs to adjust the seat height; the backrest can be rotated relative to the seat to adjust the backrest recline angle; and the armrests are used to support the user's arms.

[0003] To facilitate control of seat height adjustment and backrest rotation, triggers are typically installed on the armrests. When the backrest is in a partially adjusted position, the user's arms are supported on the armrests, allowing for easy operation of the triggers. However, when the angle between the backrest and the seat is too large or too small, the position of the user's arms changes significantly, while the triggers remain in their original position, making them unreachable and increasing the difficulty of operation. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to propose an armrest assembly and a seat to solve the problem that it is difficult to operate the trigger after adjusting the backrest angle in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is an armrest assembly applied to a seat. The seat includes a seat and a backrest. The armrest assembly includes an armrest body. The armrest body is provided with a trigger for controlling the lifting and lowering of the seat and / or for controlling the rotation of the backrest. The backrest is provided with a first connecting part and a second connecting part. The first connecting part is rotatably connected to the seat, and the second connecting part is connected to the armrest body. The armrest body is configured to follow the rotation of the backrest to drive the trigger to move, thereby keeping the minimum distance between the trigger and the second connecting part constant.

[0006] This utility model has at least the following beneficial effects:

[0007] The trigger is mounted on the armrest body, which is connected to the chair back. When the chair back rotates relative to the seat, it moves the armrest body, causing the trigger on the armrest body to move as well. Ultimately, the trigger moves with the rotation of the chair back. Therefore, no matter what angle the chair back is adjusted to, the trigger maintains a constant minimum distance from the second connection point, allowing the user to operate the trigger with their hands naturally supported by the armrest body.

[0008] Furthermore, the armrest body is rotatably connected to the second connecting portion, and the armrest body is configured to rotate in the opposite direction to the chair back during the rotation of the chair back relative to the chair seat.

[0009] Furthermore, the handrail body has a third connecting part and a fourth connecting part, wherein the third connecting part is rotatably connected to the second connecting part;

[0010] The handrail assembly also includes a connector, which has a fifth connecting part and a sixth connecting part, and the fifth connecting part is rotatably connected to the fourth connecting part;

[0011] The chair seat has a seventh connecting part and an eighth connecting part, the seventh connecting part being rotatably connected to the sixth connecting part, and the eighth connecting part being rotatably connected to the first connecting part.

[0012] Furthermore, the line connecting the first connecting portion and the second connecting portion is the first connecting line; the line connecting the third connecting portion and the fourth connecting portion is the second connecting line;

[0013] The angle between the first connecting line and the vertical plane is the first angle; the chair back has a first posture and a second posture, and the angle of the first angle in the second posture is greater than the angle of the first angle in the first posture;

[0014] The angle between the second line and the horizontal plane is the second angle, and the angle of the second angle in the second posture is greater than the angle of the second angle in the first posture.

[0015] Furthermore, the armrest body has a first connecting segment and a second connecting segment located on both sides of the fourth connecting portion, the first connecting segment being connected to the end of the second connecting segment facing away from the chair back; the trigger is disposed on the side of the first connecting segment facing the chair seat.

[0016] Furthermore, the seat also includes:

[0017] A first driver for driving the seat to rise and fall, and / or a second driver for driving the backrest to rotate;

[0018] A first transmission element for connecting the trigger and the first driver, and / or a second transmission element for connecting the trigger and the second driver;

[0019] The connector has a first accommodating space, and the first and / or the second transmission member are at least partially located in the first accommodating space.

[0020] Furthermore, the handrail body is fixedly connected to the second connecting part.

[0021] Furthermore, the seat also includes:

[0022] A first driver for driving the seat to rise and fall, and / or a second driver for driving the backrest to rotate;

[0023] A first transmission element for connecting the trigger and the first driver, and / or a second transmission element for connecting the trigger and the second driver;

[0024] The armrest body has a second accommodating space, the backrest has a third accommodating space, the first transmission member is sequentially inserted through the second accommodating space and the third accommodating space, and / or the second transmission member is sequentially inserted through the second accommodating space and the third accommodating space.

[0025] Furthermore, a type of seat was also disclosed, including:

[0026] Chair legs;

[0027] A chair seat and a chair back, wherein the chair seat is height-adjustable and mounted on the chair legs, and the chair back is rotatably mounted on the chair seat;

[0028] Two armrest assemblies are located on opposite sides of the seat.

[0029] Furthermore, both armrest bodies are provided with triggers, one of which is used to control the lifting and lowering of the seat, and the other is used to control the rotation of the backrest.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0032] Figure 1 This is a schematic diagram of the seat structure with the backrest in the first posture according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the seat structure with the backrest in the second posture according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the connector and the handrail body in an embodiment of this utility model;

[0035] Figure 4 This is a schematic diagram of the chair seat in an embodiment of the present utility model;

[0036] Figure 5 This is a schematic diagram of the chair back structure in an embodiment of the present utility model;

[0037] Figure label:

[0038] 100. Armrest assembly; 110. Armrest body; 111. Third connecting part; 112. Fourth connecting part; 120. Connector; 121. Fifth connecting part; 122. Sixth connecting part; 130. Trigger; 200. Seat; 210. Seventh connecting part; 220. Eighth connecting part; 300. Backrest; 310. Support; 320. Support; 321. First connecting part; 322. Second connecting part; 400. Leg. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Please refer to Figures 1 to 3 This embodiment discloses an armrest assembly 100 applied to a seat. The seat includes a seat 200 and a backrest 300. The armrest assembly 100 includes an armrest body 110. The armrest body 110 is provided with a trigger 130 for controlling the lifting and lowering of the seat 200 and / or for controlling the rotation of the backrest 300. The backrest 300 is provided with a first connecting portion 321 and a second connecting portion 322. The first connecting portion 321 is rotatably connected to the seat 200, and the second connecting portion 322 is connected to the armrest body 110. The armrest body 110 is configured to drive the trigger 130 to move in accordance with the rotation of the backrest 300, thereby keeping the minimum distance between the trigger 130 and the second connecting portion 322 constant. Exemplarily, the trigger 130 can be a lever or button, etc.

[0045] Specifically, this design involves mounting the trigger 130 on the armrest body 110, connecting the armrest body 110 to the chair back 300. When the chair back 300 rotates relative to the seat 200, it moves the armrest body 110, causing the trigger 130 on the armrest body 110 to move as well. Ultimately, the trigger 130 moves with the rotation of the chair back 300. Thus, regardless of the angle to which the chair back 300 is adjusted, the trigger 130 maintains a constant minimum distance from the second connection portion 322, allowing the user's hand to operate the trigger 130 in a natural posture supported by the armrest body 110.

[0046] It should be noted that the trigger 130 can be set to simultaneously operate the lifting and lowering of the seat 200 and the rotation of the backrest 300, or different triggers 130 can be set to operate the lifting and lowering of the seat 200 and the rotation of the backrest 300 separately.

[0047] Please refer to Figure 3 and Figure 5 Regarding the specific structure of the armrest assembly 100, this embodiment provides one implementation method: the armrest body 110 is rotatably connected to the second connecting portion 322, and the armrest body 110 is configured to rotate in the opposite direction to the backrest 300 during the rotation of the seat 200 relative to the backrest 300. Specifically, the armrest body 110 rotates in the opposite direction following the rotation of the backrest 300, so that the height of the trigger 130 remains constant during the rotation of the backrest 300; or, the height of the trigger 130 increases slowly during the rotation of the backrest 300; or, the height of the trigger 130 decreases slowly during the rotation of the backrest 300. Thus, under this structure, the above three specific implementation methods are provided to suit different user groups or usage conditions.

[0048] For example, a driver such as a motor for driving the armrest body 110 to rotate in the opposite direction can be provided at a position such as the second connection part 322.

[0049] Regarding the specific structure of the armrest assembly 100, this embodiment also provides another implementation method: Please refer to... Figure 3 The handrail body 110 has a third connecting portion 111 and a fourth connecting portion 112, the third connecting portion 111 being rotatably connected to the second connecting portion 322; the handrail assembly 100 also includes a connector 120, the connector 120 having a fifth connecting portion 121 and a sixth connecting portion 122, the fifth connecting portion 121 being rotatably connected to the fourth connecting portion 112; please refer to Figure 4 The chair seat 200 has a seventh connecting part 210 and an eighth connecting part 220. The seventh connecting part 210 is rotatably connected to the sixth connecting part 122, and the eighth connecting part 220 is rotatably connected to the first connecting part 321. The line connecting the first connecting part 321 and the second connecting part 322 is the first connecting line. The line connecting the third connecting part 111 and the fourth connecting part 112 is the second connecting line. The line connecting the fifth connecting part 121 and the sixth connecting part 122 is the third connecting line. The line connecting the seventh connecting part 210 and the eighth connecting part 220 is the fourth connecting line.

[0050] Specifically, the armrest body 110 maintains a stable angle as the chair back 300 rotates. When the chair back 300 reclines, it moves the armrest body 110 backward, and at the same time, the armrest body 110 pulls the connecting member 120 to rotate, so that the connecting member 120 has a restraining and supporting effect on the armrest body 110. This ensures that the angle between the armrest body 110 and the horizontal plane remains constant, which not only supports the arm to a comfortable position, but also keeps the angle of the trigger member 130 constant, so that the user can operate the trigger member 130.

[0051] For example, when the second and third lines intersect, the first, second, third, and fourth lines form a quadrilateral; when the second and third lines are on the same straight line, the first, second, third, and fourth lines form a triangle.

[0052] Furthermore, the angle between the first connecting line and the vertical plane is the first angle; the chair back 300 has a first posture and a second posture, and the angle of the first angle in the second posture is greater than the angle of the first angle in the first posture; the angle between the second connecting line and the horizontal plane is the second angle, and the angle of the second angle in the second posture is greater than the angle of the second angle in the first posture.

[0053] For example, please refer to Figure 1 The first posture can be understood as the posture when the chair back is at a 300° vertical angle; please refer to... Figure 2The second posture is the posture when the chair back 300 is reclined. When the chair back 300 rotates from the first posture to the second posture, the angle of the first included angle gradually increases to change the angle of the support surface of the chair back 300 used to support the back and waist; when the chair back 300 rotates from the first posture to the second posture, the angle of the second included angle gradually increases to change the angle of the support surface of the armrest body 110 used to support the arms. In this way, when the chair back 300 rotates to any angle, it can drive the armrest body 110 to rotate to a posture that supports the arms at a comfortable angle, thereby improving the comfort of the seat.

[0054] It should also be noted that the rotation of the backrest 300 can be driven by a driver such as a motor installed in the first connecting part 321, and its reset can be achieved by the reverse rotation of the driver, or by a reset spring installed in the first connecting part 321 or other positions. When the driver stops, the backrest 300 rotates in the reverse direction and resets under the action of the reset spring. When the backrest 300 rotates to certain extreme positions, such as when the second and third connecting lines are close to being on the same straight line, the reverse rotation of the backrest 300's driver or the force of the reset spring alone is insufficient to drive the armrest body 110 and the connecting member 120 to reset. In this case, a reset spring or other component can be installed in other positions such as the third connecting part 111 or the fourth connecting part 112 to provide a force to reset the armrest body 110 and the connecting member 120 at the extreme positions, thereby cooperating with the force of the backrest 300's driver to drive the armrest body 110 and the connecting member 120 to reset.

[0055] Furthermore, please refer to Figure 5 The chair back 300 includes a support member 310 and a support 320. The support member 310 is fixedly disposed on or detachably connected to the support 320, and the first connecting part 321 and the second connecting part 322 are both disposed on the support 320.

[0056] Regarding the positional design of the trigger 130, this embodiment provides one structure: Please refer to Figure 3 The armrest body 110 has a first connecting segment and a second connecting segment located on both sides of the fourth connecting portion 112. The first connecting segment is connected to the end of the second connecting segment facing away from the backrest 300. The trigger 130 is disposed on the side of the first connecting segment facing the seat 200. That is, the trigger 130 is connected to the first connecting segment and located below the first connecting segment, so that when the user's arm is supported on the armrest body 110, the hand can naturally fall from the end of the first connecting segment to the position of the trigger 130, thereby allowing the user's hand to operate the trigger 130 in a natural and comfortable posture.

[0057] Regarding the internal wiring structure, this embodiment provides one implementation structure: the seat further includes: a first driver for driving the seat 200 to rise and fall, and / or a second driver for driving the backrest 300 to rotate; a first transmission member for connecting the trigger 130 and the first driver, and / or a second transmission member for connecting the trigger 130 and the second driver; the connector 120 has a first accommodating space, and the first transmission member and / or the second transmission member are at least partially located in the first accommodating space. Exemplarily, the first driver and the second driver can be configured as driving components such as motors or cylinders, and the first transmission member and the second transmission member can be configured as wires for transmitting electrical signals or cables for transmitting mechanical forces.

[0058] Specifically, the connector 120 is hollow inside to form a first accommodating space, and the first and / or second transmission members can be at least partially hidden in the first accommodating space, and then pass through the lower end of the first accommodating space and connect to the first and / or second drivers, thereby avoiding the transmission members being exposed on the side of the armrest assembly 100 and affecting the use and appearance.

[0059] Regarding the specific structure of the armrest assembly 100, this embodiment also provides another implementation method: the armrest body 110 is fixedly connected to the second connecting part 322. Specifically, the armrest body 110 is fixedly connected to the second connecting part 322. When the backrest 300 rotates relative to the seat 200 around the first connecting part 321, the armrest body 110 rotates along with it, and the angle between the armrest body 110 and the backrest 300 remains constant. The trigger 130 on the armrest body 110 has not only horizontal displacement but also vertical displacement to suit different users and usage scenarios.

[0060] Regarding the internal wiring structure, this embodiment provides another implementation structure: the seat further includes: a first driver for driving the seat 200 to rise and fall, and / or a second driver for driving the backrest 300 to rotate; a first transmission member for connecting the trigger 130 and the first driver, and / or a second transmission member for connecting the trigger 130 and the second driver; the armrest body 110 is provided with a second accommodating space, the backrest 300 is provided with a third accommodating space, the first transmission member is sequentially inserted through the second accommodating space and the third accommodating space, and / or the second transmission member is sequentially inserted through the second accommodating space and the third accommodating space.

[0061] Specifically, the upper ends of the first and / or second transmission members are connected to the same trigger 130, or to two triggers 130 respectively. The lower ends of the first and / or second transmission members pass through the second and third accommodating spaces in sequence and then emerge from the backrest 300, connecting to the first and / or second drive. This provides another implementation method that also avoids the transmission members being exposed on the sides of the armrest assembly 100, thus preventing them from affecting usability and appearance.

[0062] This embodiment also discloses a seat, including: chair legs 400, seat 200, backrest 300, and two armrest assemblies 100. The seat 200 is height-adjustable on the chair legs 400, and the backrest 300 is rotatably mounted on the seat 200. The two armrest assemblies 100 are located on opposite sides of the seat 200. Each of the two armrest bodies 110 is provided with a trigger 130. The trigger 130 on one armrest body 110 is used to control the height adjustment of the seat 200, and the trigger 130 on the other armrest body 110 is used to control the rotation of the backrest 300.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An armrest assembly for use in a seat, the seat comprising a seat and a backrest, characterized in that, The armrest assembly includes an armrest body, which is provided with a trigger for controlling the lifting and lowering of the seat and / or for controlling the rotation of the backrest; the backrest is provided with a first connecting portion and a second connecting portion, the first connecting portion being rotatably connected to the seat and the second connecting portion being connected to the armrest body; the armrest body is configured to follow the rotation of the backrest to drive the trigger to move, thereby keeping the minimum distance between the trigger and the second connecting portion constant.

2. The armrest assembly according to claim 1, characterized in that, The armrest body is rotatably connected to the second connecting part, and the armrest body is configured to rotate in the opposite direction to the chair back during the rotation of the chair back relative to the chair seat.

3. The handrail assembly according to claim 2, characterized in that, The handrail body has a third connecting part and a fourth connecting part, and the third connecting part is rotatably connected to the second connecting part; The handrail assembly also includes a connector, which has a fifth connecting part and a sixth connecting part, and the fifth connecting part is rotatably connected to the fourth connecting part; The chair seat has a seventh connecting part and an eighth connecting part, the seventh connecting part being rotatably connected to the sixth connecting part, and the eighth connecting part being rotatably connected to the first connecting part.

4. The handrail assembly according to claim 3, characterized in that, The line connecting the first connecting part and the second connecting part is the first connecting line; the line connecting the third connecting part and the fourth connecting part is the second connecting line; The angle between the first connecting line and the vertical plane is the first angle; the chair back has a first posture and a second posture, and the angle of the first angle in the second posture is greater than the angle of the first angle in the first posture; The angle between the second line and the horizontal plane is the second angle, and the angle of the second angle in the second posture is greater than the angle of the second angle in the first posture.

5. The handrail assembly according to claim 3, characterized in that, The armrest body has a first connecting segment and a second connecting segment located on both sides of the fourth connecting portion. The first connecting segment is connected to the end of the second connecting segment facing away from the backrest. The trigger is located on the side of the first connecting segment facing the seat.

6. The armrest assembly according to claim 3, characterized in that, The seat also includes: A first driver for driving the seat to rise and fall, and / or a second driver for driving the backrest to rotate; A first transmission element for connecting the trigger and the first driver, and / or a second transmission element for connecting the trigger and the second driver; The connector has a first accommodating space, and the first and / or the second transmission member are at least partially located in the first accommodating space.

7. The handrail assembly according to claim 1, characterized in that, The handrail body is fixedly connected to the second connecting part.

8. The handrail assembly according to claim 2 or 7, characterized in that, The seat also includes: A first driver for driving the seat to rise and fall, and / or a second driver for driving the backrest to rotate; A first transmission element for connecting the trigger and the first driver, and / or a second transmission element for connecting the trigger and the second driver; The armrest body has a second accommodating space, the backrest has a third accommodating space, the first transmission member is sequentially inserted through the second accommodating space and the third accommodating space, and / or the second transmission member is sequentially inserted through the second accommodating space and the third accommodating space.

9. A seat, characterized in that, include: Chair legs; A chair seat and a chair back, wherein the chair seat is height-adjustable and mounted on the chair legs, and the chair back is rotatably mounted on the chair seat; Two armrest assemblies as described in any one of claims 1 to 8, wherein the two armrest assemblies are respectively located on opposite sides of the seat.

10. The seat according to claim 9, characterized in that, Both armrest bodies are equipped with triggers. The trigger on one armrest body is used to control the lifting and lowering of the seat, and the trigger on the other armrest body is used to control the rotation of the backrest.

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