Rotary armrest suitable for seat and seat

Abstract

The utility model relates to the field of household article machinery, in particular to a structural design of a seat armrest part. According to the technical scheme, the rotating armrest suitable for the seat comprises a bottom table and an armrest assembly, and further comprises a first table connected with the armrest assembly and a second table connected with the first table, the two ends of the transfer arm are rotationally connected with the head table and the bottom table respectively; the first table and the bottom table are each provided with a clamping mechanism. The utility model aims to provide a rotary armrest suitable for a seat and the seat, which are high in universality, light in weight and suitable for designing a light seat product. The position of the armrest is convenient and fast to adjust, the flexibility is high, and the adaptive adjustment of the armrest position and the armrest posture can be flexibly achieved in a large-range position area.

Description

Technical Field

[0001] This utility model relates to the field of household goods machinery, specifically to the structural design of the armrest of a chair. Background Technology

[0002] Chairs are common support structures for sitting and reclining postures, widely used in daily life and office work, such as armchairs and sofas. Generally, a chair includes functional components such as a seat, backrest, armrests, and support legs. With the progress of the times and the improvement of living standards, in addition to the traditional support function, chairs have more demands for functionality and comfort.

[0003] Among the various components of a seat, the armrests are functional parts that support the hands, arms, and elbows. In the original design, armrests were often fixed, but such armrest structures offer limited support and can only be installed on seats where the user's posture is fixed and not adjustable. When the seat has a lumbar support that can be folded down or even supports lying flat, these fixed armrests cannot provide comfortable support for the user's elbows.

[0004] Furthermore, some products use an adjustable armrest design. For example, Chinese patent document CN201520490561.4 discloses a height-adjustable armrest suitable for seats. This type of armrest can drive the X-frame to move by a cylinder or other driving component. The armrest is installed on the X-frame, thereby realizing the change of the armrest's position.

[0005] However, this technical solution has the following drawbacks: First, the movement trajectory of the X-frame is fixed, and correspondingly, the movement trajectory of the armrests is also fixed, making flexible position adjustment impossible. Second, the X-frame is often heavy, so the driving force must come from cylinders, motors, and other drive structures, which not only increases manufacturing costs but also adds to the weight of the seat, making it unsuitable for portable seating products. Third, the seat adjustment process with this structure is complex, often requiring the user to get off the chair to operate the cylinders and motors, resulting in a poor user experience. Utility Model Content

[0006] The purpose of this utility model is to provide a rotating armrest suitable for a seat and a seat, which is highly versatile, lightweight, and suitable for designing lightweight seat products; the position adjustment of the armrest is convenient and highly flexible, and can flexibly achieve adaptive adjustment of the armrest position and posture within a large range of positions.

[0007] This utility model is achieved through the following technical solution: a rotating armrest suitable for a seat, comprising a base and an armrest assembly, and further comprising:

[0008] The first unit connected to the armrest assembly;

[0009] An adapter arm, the two ends of which are rotatably connected to the first platform and the base platform, respectively;

[0010] Each of the first unit and the base platform is provided with a set of cards and mechanisms;

[0011] The adapter arm is provided with a set of locking mechanisms at both ends. The locking mechanisms are used to cooperate with the card and mechanism to lock the rotation angle of the adapter arm relative to the first platform and relative to the bottom platform.

[0012] The traction member, of which there are at least two, is connected at one end to the locking mechanism for pulling the locking mechanism closer to and away from the card and mechanism.

[0013] As a preferred embodiment of the present invention, the locking mechanism includes a locking block, the locking block having locking teeth; the latching mechanism includes a latching plate, the latching plate having latching teeth that engage with the locking teeth; and the traction member is connected to the locking block.

[0014] As a preferred embodiment of the present invention, the locking mechanism further includes a spring, one end of which is connected to the locking block and the other end of which is connected to the adapter arm.

[0015] As a preferred embodiment of the present invention, the adapter arm includes a receiving groove for accommodating the first unit.

[0016] As a preferred embodiment of the present invention, the first unit includes a protrusion, and the adapter arm includes a limiting groove that cooperates with the protrusion. The maximum rotation angle of the first unit relative to the adapter arm is limited by the movement of the protrusion in the limiting groove.

[0017] As a preferred embodiment of the present invention, it further includes a wrench assembly mounted on the handrail assembly, the wrench assembly being connected to the traction member.

[0018] As a preferred embodiment of this utility model, the traction component is a traction rope.

[0019] As a preferred embodiment of the present invention, the wrench assembly includes a wrench plate, a wrench coupling connected to the wrench plate, and a connecting hook connected to the wrench plate. The traction rope is installed in the connecting hook, and the wrench coupling is rotatably connected to the handrail assembly.

[0020] As a preferred embodiment of this utility model, the adapter arm is provided with a rope groove for the two traction ropes to pass through.

[0021] As a preferred embodiment of this utility model, it also includes a connecting seat, wherein the base is rotatably connected to the connecting seat and rotates horizontally relative to the connecting seat.

[0022] As a preferred embodiment of the present invention, the connecting seat includes a central main seat, the central main seat includes a connecting surface and a recess, and the base includes an extension platform for extending into the recess.

[0023] As a preferred embodiment of this utility model, the extending platform is frustum-shaped, and its cross-section gradually decreases in the vertically downward direction.

[0024] As a preferred embodiment of this utility model, the main seat includes a ball pin, and the base includes a mating ring. The position of the base relative to the connecting seat is fixed by the ball pin being snapped into the mating ring.

[0025] A seat includes a rotating armrest suitable for a seat, and also includes a seat, a lumbar support, and a seat frame, the base being connected to the seat frame.

[0026] In summary, this utility model has the following beneficial effects:

[0027] 1. By operating the two traction components, the locking / unlocking states of the "first platform and adapter arm" and "bottom platform and adapter arm" can be switched, achieving "two-point flipping". The position and posture of the handrail assembly can be adjusted more flexibly.

[0028] 2. The flipping mechanism does not rely on a heavy frame or cylinders; users can operate it by hand, reducing the overall weight of the armrest and seat.

[0029] 3. With the wrench component, users can switch between two positions with one hand, making it easier to adjust the position and posture of the armrest component.

[0030] 4. With the operating area at the rear, the connecting hook in the middle, and the wrench shaft at the front, the user's hands are less strained and the operation is light and easy; the displacement distance of the locking block is short, and the stroke design of the components can be short, which is more conducive to the optimization of the small size of the components.

[0031] 5. The entire base can rotate horizontally in a circular direction relative to the connecting seat, and the position locking is flexible and convenient.

[0032] 6. The downward-retracting design of the extension platform saves volume in the lower part of the entire device, making it aesthetically pleasing and compact; the central main seat provides a vertical upward supporting force to the base platform, improving the stability of the base platform.

[0033] 7. The protrusion abuts against the wall of the limiting groove, thereby limiting the maximum rotation angle of the first unit relative to the connecting arm and the maximum rotation angle of the bottom platform relative to the connecting arm, thus enhancing the controllability of the position adjustment stroke. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of Example 1;

[0035] Figure 2 yes Figure 1 A schematic diagram showing the adapter arm concealed by its housing.

[0036] Figure 3 This is an exploded diagram of the base platform;

[0037] Figure 4 This is a schematic diagram of the connection between the first unit and the adapter arm;

[0038] Figure 5 yes Figure 4 The side sectional view after the position is connected;

[0039] Figure 6 This is a schematic diagram of the wrench assembly;

[0040] Figure 7 This is a schematic diagram of the flipping of Example 1.

[0041] In the picture:

[0042] 1. Connecting seat; 11. Seat housing; 12. Middle main seat; 121. Connecting surface; 122. Cavity; 123. Ball pin; 2. Base platform; 21. Mating ring; 22. Extension platform; 3. Adapter arm; 31. Main body; 311. Receiving platform groove; 4. First stage; 41. Protrusion; 5. Handrail assembly; 6. Wrench assembly; 61. Wrench plate; 62. Wrench connecting shaft; 63. Rope hook; 7. Rotating shaft; 8. Locking mechanism; 81. Locking block; 811. Locking tooth; 82. Spring; 9. Locking mechanism; 91. Locking piece; 911. Locking tooth; 10. Traction component. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings.

[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0045] Example 1, such as Figure 1 As shown, it includes the following main structural components: connecting seat 1, base platform 2, adapter arm 3, head unit 4, handrail assembly 5, and wrench assembly 6. Among them, as... Figure 3As shown, the connecting seat 1 is a component that connects to the seat. Specifically, it includes a base shell 11 and a central main seat 12. The central main seat 12 includes a vertical plane and a connecting surface 121. The connecting surface 121 is used to connect with the frame of the seat. The upper surface of the central main seat 12 includes a concave cavity 122 into which the extension platform 22 extends. In this embodiment, the extension platform 22 is a downwardly recessed frustum shape. This downwardly recessed design saves volume in the lower part of the device, making it aesthetically pleasing and compact. On the other hand, the circular design facilitates the smooth horizontal circumferential rotation of the base platform 2, and the recessed design allows the central main seat 12 to provide a vertically upward supporting force to the base platform 2, improving the stability of the support for the base platform 2.

[0046] The entire base 2 is capable of horizontal circumferential rotation relative to the connecting seat 1, and its position is locked by a ball pin 123. The base 2 includes a circumferential mating ring 21 with multiple circular alignment holes. When the base 2 rotates relative to the connecting seat 1, the ball pin 123 springs into the alignment hole, thus determining their position. When further rotation is needed, the user simply needs to apply slightly more force to rotate the base 2, overcoming the spring force of the ball pin 123, allowing for another rotation—flexible and convenient.

[0047] like Figure 3 As shown, to facilitate the connection between the base platform 2 and the connecting arm 3, the base platform 2 can be made in a split form. A rotating shaft 7 passes through both the base platform 2 and the connecting arm 3, and both rotate around the rotating shaft 7. The connecting arm 3 and the head platform 4 also rotate using the same rotating structure. Figure 2 As shown, the connecting arm 3 and the first platform 4 are relatively locked in their rotational positions by the locking mechanism 8 and the locking mechanism 9. The connecting arm 3 and the base platform 2 also rely on the same structure and principle. The following explanation uses the structure of the first platform 4 and the connecting arm 3 as an example.

[0048] like Figure 4 and Figure 5 As shown, the adapter arm 3 includes a main body 31 and an outer casing for the adapter arm. When the casing is hidden, as... Figure 4 As shown. The first unit 4 is generally disc-shaped, while the upper part of the main body 31 has a receiving groove 311. After installation, the first unit 4 is located in the receiving groove 311. When the two rotate relative to each other, a protruding piece 411 on the first unit 4 moves in a limiting groove in the main body 31. Through the shape design of the limiting groove, the piece 411 abuts against the groove wall, thereby limiting the maximum rotation angle of the first unit 4 relative to the connecting arm 3. The limiting of the rotation angle of the connecting arm 3 and the base 2 also adopts the same structural principle, which will not be described in detail here. The traction component 10 can be in the form of a traction rod, traction chain, etc. In this embodiment, a traction rope is used. There are two traction ropes, which are respectively connected to two sets of locking mechanisms 8. Figure 5As shown, the front end of the traction rope is connected to the locking block 81, which contains multiple locking teeth 811. The first unit 4 is equipped with a latch and mechanism 9, which includes a latch and plate 91, and contains multiple locking teeth 911. When the user pulls the traction rope, the locking block 81 moves, disengaging the locking teeth 811 and locking teeth 911. The first unit 4 and the adapter arm 3 are in an unlocked state, and the angle between them can be flexibly adjusted. When the user releases the traction rope, one end of the spring 82 is connected to the main body 31 and abuts against it, while the other end is connected to the locking block 81, thereby applying elastic force to the locking block 81 to reset it. The locking teeth 911 and locking teeth 811 mesh with each other, locking the positions of the first unit 4 and the adapter arm 3.

[0049] Therefore, by operating the two traction components 10, the locking / unlocking states of the "first platform 4 and the adapter arm 3" and the "bottom platform 2 and the adapter arm 3" can be switched, achieving "two-point flipping". And the flipping of these two points, as... Figure 1 and Figure 7 As shown, on the one hand, the position and posture of the armrest assembly 5 can be adjusted more flexibly; on the other hand, this flipping method does not rely on a heavy frame and cylinder, and the user can operate it by hand, which reduces the overall weight of the entire armrest and the entire seat.

[0050] Furthermore, such as Figure 6 As shown, the design of the wrench assembly 6 further enhances the ease of operation. The wrench plate 61 is horizontally positioned, with a wrench connecting shaft 62 at its front end for rotatable connection with the handrail assembly 5. A rope hook 63 is located on the lower surface of the wrench plate 61, to which two traction ropes are connected. The rear end of the wrench plate 61 is the operating area for hand operation. This design allows the user to switch between the two positions mentioned above with a single hand, making it easier to adjust the position and posture of the handrail assembly 5. Furthermore, with the operating area at the rear, the rope hook 63 in the middle, and the wrench connecting shaft 62 at the front—meaning the distance from the operating area to the wrench connecting shaft 62 is greater than the distance from the rope hook 63 to the wrench connecting shaft 62—the user's hand effort is reduced, resulting in a lighter operating feel. The large range of hand movement, coupled with the short displacement distance of the locking block 81, allows for a shorter stroke design, facilitating smaller component dimensions.

Claims

1. A swivel armrest suitable for a seat, comprising a base (2) and an armrest assembly (5), characterized in that, Also contain: The first (4) connected with the handrail assembly (5); Adapter arm (3), both ends of the adapter arm (3) are respectively rotatably connected with the first (4) and the bottom (2); The first (4) and the bottom (2) are respectively provided with a set of card and mechanism (9); The first and second ends of the adapter arm (3) are respectively provided with a set of locking mechanism (8), the locking mechanism (8) is used for cooperating with the card and mechanism (9), thereby locking the rotation angle of the adapter arm (3) relative to the first (4) and the bottom (2); Traction member (10), the traction member (10) is at least two, one end of each traction member (10) is connected with the locking mechanism (8), used for drawing the locking mechanism (8) close to or away from the card and mechanism (9).

2. A swivel armrest for a seat according to claim 1, characterized in that: The locking mechanism (8) contains a lock block (81), the lock block (81) contains a lock tooth (811); the card and mechanism (9) contains a card and piece (91), the card and piece (91) contains a card tooth (911) engaged with the lock tooth (811), the traction member (10) is connected with the lock block (81).

3. A swivel armrest for a seat according to claim 2, characterized in that: The locking mechanism (8) further comprises a spring (82), one end of the spring (82) is connected with the lock block (81), the other end is connected with the adapter arm (3).

4. A swivel armrest for a seat according to claim 1, characterized in that: The adapter arm (3) contains a containing table slot (311) for containing the first (4).

5. A swivel armrest for a seat according to claim 4, characterized in that: The first (4) contains a tab (41), the adapter arm (3) contains a limiting slot matched with the tab (41), the maximum turning angle of the first (4) relative to the adapter arm (3) is limited by moving the tab (41) in the limiting slot.

6. A swivel armrest for a seat according to claim 1, characterized in that: Also contain wrench assembly (6) installed on the handrail assembly (5), the wrench assembly (6) is connected with the traction member (10).

7. A swivel armrest for a seat according to claim 6, characterized in that: The traction member (10) is a traction rope.

8. A swivel armrest for a seat according to claim 7, characterized in that: The wrench assembly (6) contains a wrench plate (61), a wrench connecting shaft (62) connected with the wrench plate (61) and a rope hook (63) connected with the wrench plate (61), the traction rope is installed in the rope hook (63), and the wrench connecting shaft (62) is rotatably connected with the handrail assembly (5).

9. A swivel armrest for a seat according to claim 8, characterized in that: The wrench plate (61) contains an operation area for user hand operation, and the distance from the operation area to the wrench connecting shaft (62) is greater than the distance from the rope hook (63) to the wrench connecting shaft (62).

10. A swivel armrest for a seat according to claim 7, characterized in that: The adapter arm (3) is provided with a lead rope groove for the two traction ropes.

11. A swivel armrest for a seat according to any one of claims 1 to 10, characterized in that: Also contain connecting seat (1), the bottom (2) is rotatably connected with the connecting seat (1), and is rotatable relative to the connecting seat (1) in horizontal direction.

12. A swivel armrest for a seat according to claim 11, characterized in that: The connecting seat (1) contains a middle main seat (12), the middle main seat (12) contains a connecting surface (121), and further contains a recess (122), the bottom (2) contains a protruding table (22) for protruding into the recess (122).

13. A swivel armrest for a seat according to claim 12, characterized in that: The protruding table (22) is a circular table, and its cross section gradually decreases in vertical downward direction.

14. A swivel armrest for a seat according to claim 12, characterized in that: The middle base (12) comprises a ball pin (123), and the bottom base (2) comprises a matching ring (21), the position of the bottom base (2) relative to the connecting base (1) is fixed by the ball pin (123) being bounced into the matching ring (21).

15. A seat, characterized in that The rotating armrest suitable for a seat comprises a seat, a waist rest and a seat frame, and the bottom base (2) is connected with the seat frame.

Images