Frame body structure of sofa armrest

Abstract

The utility model discloses a frame body structure of a sofa armrest, which can drive the sofa armrest to swing towards a first direction to a first position, a second position or a third position through a connecting arm towards the first direction during adjustment, and can be locked through a locking mechanism after arriving at the corresponding position, so that the first angle adjustment effect of the sofa armrest is realized; the armrest can be driven to swing towards a second direction or a direction opposite to the second direction through the synchronous swing action of the first strip-shaped component and the second strip-shaped component, the second angle adjusting effect of the sofa armrest is achieved, and when the first strip-shaped component and the second strip-shaped component synchronously swing to abut against each other, the maximum swing range is achieved. Compared with the prior art, the structure is simple, installation is convenient, the first strip-shaped component and the second strip-shaped component can be produced and manufactured through conventional parts, special customized design is not needed, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a frame structure for a sofa armrest. Background Technology

[0002] For example, Chinese Utility Model Patent Application No. 202420096493.2 discloses a sofa armrest locking mechanism, which mainly uses the cooperation of a first link, a second link, a first limiting part, and a second limiting part to allow the armrest to rotate within a certain angle.

[0003] Firstly, the first and second limiting parts of this patent are extensions of the first and second connecting rods, respectively. The first limiting part swings with the swing of the first connecting rod, and the second limiting part swings with the swing of the second connecting rod. Furthermore, the first and second connecting rods must swing synchronously. This means that the first connecting rod must make way for the swing of the second limiting part while swinging; the two must absolutely not come into contact. Otherwise, contact between the first connecting rod and the second limiting part would restrict the movement of the sofa armrest. Similarly, the second connecting rod must make way for the swing of the first limiting part while swinging; the two must absolutely not come into contact. Otherwise, premature contact between the second connecting rod and the first limiting part would also restrict the movement of the sofa armrest.

[0004] Secondly, according to the patent Figure 3 The disclosed structural diagram shows that the first connecting rod is wavy and the second connecting rod is arc-shaped. These special shapes are designed to avoid the first and second limiting parts, respectively. However, this also creates a problem: the first and second connecting rods, after being specially treated, are non-standard parts and cannot be replaced by readily available standard parts. Therefore, manufacturers need to specially open molds and customize the first and second connecting rods. When the product is updated, the first and second connecting rods must also be re-molded and customized, which inevitably leads to higher production costs.

[0005] Therefore, the applicant believes it is necessary to make structural improvements and propose a sofa armrest frame structure that can be manufactured using conventional parts in order to reduce production costs. Utility Model Content

[0006] The main purpose of this utility model is to propose a frame structure for a sofa armrest, which aims to reduce production costs by using conventional parts to manufacture the sofa armrest frame structure.

[0007] To achieve the above objectives, this utility model proposes a frame structure for a sofa armrest, including a plate-shaped first strip member, a plate-shaped second strip member, a first connecting seat, a connecting arm, and a locking mechanism;

[0008] The first strip member and the second strip member are adjacent to each other with a left-right gap. The lower ends of the first strip member and the second strip member are pivotally connected to the sofa body, respectively, and the upper ends of the first strip member and the second strip member are pivotally connected to the first connecting seat, respectively.

[0009] One end of the connecting arm is pivotally connected to the first connecting seat, and the pivot connection between the connecting arm and the first connecting seat is provided with the locking mechanism. The connecting arm can swing relative to the first connecting seat in a first direction to a first position, a second position, and a third position in sequence, and can lock the connecting arm by means of the locking mechanism after swinging to the corresponding position.

[0010] The first strip member and the second strip member can swing synchronously in the second direction, and the second strip member gradually approaches the first strip member as it swings until it touches the first strip member, so as to limit the first strip member and the second strip member from continuing to swing in the second direction;

[0011] The first strip member and the second strip member can also swing synchronously in the opposite direction to the second direction, and the first strip member gradually approaches the second strip member as it swings until it touches the second strip member, so as to limit the first strip member and the second strip member from continuing to swing in the opposite direction to the second direction.

[0012] Preferably, the upper and lower end faces of the first strip member are curved surfaces, and the upper and lower end faces of the second strip member are also curved surfaces.

[0013] Preferably, the connecting arm is plate-shaped and has a second connecting seat. The second connecting seat includes an L-shaped first corner plate and an L-shaped second corner plate. The two sides of the connecting arm abut against and are fixed to the first corner plate and the second corner plate, respectively.

[0014] Preferably, the second connecting seat and the connecting arm are integrally formed or are detachable. When they are detachable, the second connecting seat is locked to the connecting arm by screws or by a snap-fit ​​structure.

[0015] Preferably, when screw locking is used, the connecting arm is provided with a plurality of first positioning holes spaced apart along its own length direction, and the second connecting seat is provided with a second positioning hole for cooperating with the first positioning holes. The second connecting seat is locked to the connecting arm through the first positioning holes, the second positioning holes and the screws.

[0016] Preferably, a third connecting seat is also provided for fixed connection with the sofa body, wherein the lower ends of the first strip member and the lower ends of the second strip member are pivotally connected to the third connecting seat.

[0017] Preferably, the third connecting seat has a space in which the lower ends of the first strip member and the lower ends of the second strip member can move. After the lower ends of the first strip member and the lower ends of the second strip member extend into the space, they are pivotally connected to the third connecting seat by rivets, so that the first strip member and the second strip member can swing synchronously relative to the third connecting seat.

[0018] Preferably, the third connecting seat is an integral structure or a split structure. When it is a split structure, the third connecting seat includes an L-shaped third triangular plate and an L-shaped fourth corner plate, with the third corner plate and the fourth corner plate spaced apart to form the gap space.

[0019] Preferably, the third connector is a high-hardness metal product.

[0020] Preferably, the first strip member, the second strip member, the connecting arm, and the second connecting seat are all high-hardness metal products.

[0021] This utility model's technical solution involves pivotally connecting the upper ends of the first and second strip components to a first connecting seat, creating a left-right gap between the first and second strip components. One end of a connecting arm is pivotally mounted on the first connecting seat and controlled by a locking mechanism. During installation, the lower ends of the first and second strip components are pivotally connected to the sofa body, and the connecting arm is fixedly connected to the sofa armrest. During adjustment, the connecting arm can be used to swing the sofa armrest in a first direction to a first, second, or third position, and the locking mechanism can be used to lock it in the corresponding position, achieving the first angle adjustment effect of the sofa armrest. Alternatively, the synchronized swinging motion of the first and second strip components can be used to swing the armrest in a second direction or in the opposite direction, achieving the second angle adjustment effect of the sofa armrest. The maximum swing range is reached when the first and second strip components swing synchronously to a point of contact. Compared with the traditional method, this utility model has a simple structure and is easy to install. The first and second strip components can be manufactured using conventional parts without the need for special custom design, which effectively reduces production costs. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is the front view of the present utility model;

[0024] Figure 3 This is a schematic diagram showing the first and second strip components swinging synchronously in the second direction.

[0025] Figure 4 This is a schematic diagram showing the first and second strip components swinging synchronously in opposite directions in the second direction.

[0026] Figure 5 This is a schematic diagram showing the connecting arm after it has swung to the first position;

[0027] Figure 6 This is a schematic diagram showing the connecting arm after it has swung to the second position;

[0028] Figure 7 This is a schematic diagram of the connecting arm after it has swung to the third position. Detailed Implementation

[0029] The technical solutions of 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.

[0030] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is 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 indication will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are 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, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. 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.

[0032] This utility model proposes a frame structure for a sofa armrest.

[0033] In this embodiment of the utility model, such as Figures 1 to 7As shown, the frame structure of the sofa armrest includes a plate-shaped first strip member 1, a plate-shaped second strip member 2, a first connecting seat 3, a connecting arm 4, and a locking mechanism 5;

[0034] The first strip member 1 and the second strip member 2 are adjacent to each other with a left-right interval. The lower ends of the first strip member 1 and the second strip member 2 are pivotally connected to the sofa body, respectively, and the upper ends of the first strip member 1 and the second strip member 2 are pivotally connected to the first connecting seat 3, respectively.

[0035] One end of the connecting arm 4 is pivotally connected to the first connecting seat 3, and the pivot connection between the connecting arm 4 and the first connecting seat 3 is provided with the locking mechanism 5. The connecting arm 4 can swing to the first position, the second position and the third position in the first direction relative to the first connecting seat 3, and can lock the connecting arm 4 by means of the locking mechanism 5 after swinging to the corresponding position.

[0036] The first strip member 1 and the second strip member 2 can swing synchronously in the second direction, and the second strip member 2 gradually approaches the first strip member 1 as it swings, so as to limit the first strip member 1 and the second strip member 2 from continuing to swing in the second direction;

[0037] The first strip member 1 and the second strip member 2 can also swing synchronously in the opposite direction to the second direction, and the first strip member 1 gradually approaches the second strip member 2 as it swings, so as to limit the first strip member 1 and the second strip member 2 from continuing to swing in the opposite direction to the second direction.

[0038] When the connecting arm 4 swings to the first position, the locking mechanism 5 restricts the connecting arm 4 from swinging in the opposite direction to the first direction, but the connecting arm 4 can still swing in the first direction; when the connecting arm 4 swings to the second position, the locking mechanism 5 restricts the connecting arm 4 from moving in the opposite direction to the first direction, but the connecting arm 4 can still swing in the first direction; when the connecting arm 4 swings to the third position, the locking mechanism 5 restricts the connecting arm 4 from moving in the opposite direction to the first direction, but the connecting arm 4 can still swing in the first direction; when the connecting arm 4 continues to swing in the first direction to the fourth position, the locking mechanism 5 releases the restriction, allowing the connecting arm 4 to swing in the opposite direction to the first direction back to the starting position;

[0039] It should be noted that the above-described locking structure and function are common existing technologies, and their specific structural principles will not be elaborated here.

[0040] Understandably, the connecting arm can also release the restriction when swinging to the fifth or even sixth position.

[0041] Specifically, the upper and lower end faces of the first strip member 1 are curved surfaces, and the upper and lower end faces of the second strip member 2 are also curved surfaces.

[0042] Specifically, the connecting arm 4 is plate-shaped and has a second connecting seat. The second connecting seat includes an L-shaped first corner plate 61 and an L-shaped second corner plate 62. The two sides of the connecting arm 4 abut against and are fixed to the first corner plate 61 and the second corner plate 62, respectively.

[0043] Specifically, the second connecting seat and the connecting arm 4 are either integrally formed or detachable. When they are detachable, the second connecting seat is locked to the connecting arm 4 by screws or by a snap-fit ​​structure.

[0044] Specifically, when the screw is locked, the connecting arm 4 is provided with a plurality of first positioning holes 63 spaced apart along its own length direction, and the second connecting seat is provided with a second positioning hole 64 for cooperating with the first positioning holes 63. The second connecting seat is locked to the connecting arm 4 through the first positioning holes 63, the second positioning holes 64 and the screw.

[0045] Specifically, a third connecting seat is provided for fixed connection with the sofa body, and the lower ends of the first strip member 1 and the second strip member 2 are pivotally connected to the third connecting seat respectively.

[0046] Specifically, the third connecting seat is provided with a space 7 in which the lower ends of the first strip member 1 and the second strip member 2 can move. After the lower ends of the first strip member 1 and the second strip member 2 extend into the space 7, they are pivotally connected to the third connecting seat by rivets, so that the first strip member 1 and the second strip member 2 can swing synchronously relative to the third connecting seat.

[0047] Specifically, the third connecting seat is either an integral structure or a split structure. When it is a split structure, the third connecting seat includes an L-shaped first triangular plate 81 and an L-shaped fourth corner plate 82, with the third corner plate 81 and the fourth corner plate 82 spaced apart to form the gap space 7.

[0048] Specifically, the third connector is a high-hardness metal product.

[0049] Specifically, the first strip member 1, the second strip member 2, the connecting arm 4, and the second connecting seat are all high-hardness metal products.

[0050] This utility model's technical solution involves pivotally connecting the upper ends of the first and second strip components to a first connecting seat, creating a left-right gap between the first and second strip components. One end of a connecting arm is pivotally mounted on the first connecting seat and controlled by a locking mechanism. During installation, the lower ends of the first and second strip components are pivotally connected to the sofa body, and the connecting arm is fixedly connected to the sofa armrest. During adjustment, the connecting arm can be used to swing the sofa armrest in a first direction to a first, second, or third position, and the locking mechanism can be used to lock it in the corresponding position, achieving the first angle adjustment effect of the sofa armrest. Alternatively, the synchronized swinging motion of the first and second strip components can be used to swing the armrest in a second direction or in the opposite direction, achieving the second angle adjustment effect of the sofa armrest. The maximum swing range is reached when the first and second strip components swing synchronously to a point of contact. Compared with the traditional method, this utility model has a simple structure and is easy to install. The first and second strip components can be manufactured using conventional parts without the need for special custom design, which effectively reduces production costs.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A frame structure for a sofa armrest, characterized in that: It includes a plate-shaped first strip member (1), a plate-shaped second strip member (2), a first connecting seat (3), a connecting arm (4), and a locking mechanism (5); The first strip member (1) and the second strip member (2) are adjacent to each other on the left and right. The lower ends of the first strip member (1) and the second strip member (2) are pivotally connected to the sofa body respectively. The upper ends of the first strip member (1) and the second strip member (2) are pivotally connected to the first connecting seat (3) respectively. One end of the connecting arm (4) is pivotally connected to the first connecting seat (3), and the pivotal connection between the connecting arm (4) and the first connecting seat (3) is provided with the locking mechanism (5). The connecting arm (4) can swing relative to the first connecting seat (3) in the first direction to the first position, the second position and the third position in sequence, and can lock the connecting arm (4) by the locking mechanism (5) after swinging to the corresponding position. The first strip member (1) and the second strip member (2) can swing synchronously in the second direction, and the second strip member (2) gradually approaches the first strip member (1) as it swings, so as to limit the first strip member (1) and the second strip member (2) from continuing to swing in the second direction; The first strip member (1) and the second strip member (2) can also swing synchronously in the opposite direction to the second direction, and the first strip member (1) gradually approaches the second strip member (2) as it swings, so as to limit the first strip member (1) and the second strip member (2) from continuing to swing in the opposite direction to the second direction.

2. The frame structure of the sofa armrest as described in claim 1, characterized in that: The upper and lower end faces of the first strip member (1) are arc surfaces, and the upper and lower end faces of the second strip member (2) are arc surfaces.

3. The frame structure of the sofa armrest as described in claim 1, characterized in that: The connecting arm (4) is plate-shaped and has a second connecting seat. The second connecting seat includes an L-shaped first corner plate (61) and an L-shaped second corner plate (62). The two sides of the connecting arm (4) abut against and are fixed to the first corner plate (61) and the second corner plate (62) respectively.

4. The frame structure of the sofa armrest as described in claim 3, characterized in that: The second connecting seat and the connecting arm (4) are integrally formed or are detachable connecting structures. When they are detachable connecting structures, the second connecting seat is locked to the connecting arm (4) by screws or by a snap-fit ​​structure.

5. The frame structure of the sofa armrest as described in claim 4, characterized in that: When the screw is locked, the connecting arm (4) is provided with a plurality of first positioning holes (63) spaced apart along its own length direction, and the second connecting seat is provided with a second positioning hole (64) for cooperating with the first positioning holes (63). The second connecting seat is locked to the connecting arm (4) through the first positioning holes (63), the second positioning holes (64) and the screw.

6. The frame structure of the sofa armrest as described in claim 1, characterized in that: It is also provided with a third connecting seat for fixed connection with the sofa body, wherein the lower end of the first strip member (1) and the lower end of the second strip member (2) are respectively pivotally connected to the third connecting seat.

7. The frame structure of the sofa armrest as described in claim 6, characterized in that: The third connecting seat is provided with an interval space (7) in which the lower ends of the first strip member (1) and the second strip member (2) can move. After the lower ends of the first strip member (1) and the second strip member (2) extend into the interval space (7), they are pivotally connected to the third connecting seat by rivets, so that the first strip member (1) and the second strip member (2) can swing synchronously relative to the third connecting seat.

8. The frame structure of the sofa armrest as described in claim 7, characterized in that: The third connecting seat is either an integral structure or a split structure. When it is a split structure, the third connecting seat includes an L-shaped first triangular plate (81) and an L-shaped fourth corner plate (82), and the third corner plate (81) and the fourth corner plate (82) are spaced apart to form the gap space (7).

9. The frame structure of the sofa armrest as described in claim 6, characterized in that: The third connector is a high-hardness metal product.

10. The frame structure of the sofa armrest as described in claim 3, characterized in that: The first strip member (1), the second strip member (2), the connecting arm (4), and the second connecting seat are all high-hardness metal products.

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