A reclining chair

Abstract

The present invention provides a recliner, comprising a base, a backrest pivotally connected to the base at a first rotating shaft, and an armrest connected to the base, and also comprising an elastic component, the elastic component comprising a spring, a first connecting member and a second connecting member, the first connecting member being fixedly connected to the backrest, the second connecting member being pivotally connected to the armrest via a second rotating shaft and slidingly matched with the backrest, the first connecting member being located between the second connecting member and the first rotating shaft, the spring being arranged between the first connecting member and the second connecting member, and being able to compress the spring when the first connecting member and the second connecting member are close to each other. This recliner has an elastic component arranged between the backrest and the armrest, the backrest can not only swing relative to the base, but also the elastic component can provide a certain elastic force when the backrest swings.

Description

Technical Field

[0001] The invention relates to the technical field of seating, in particular to a reclining chair. Background Art

[0002] A chair is a kind of seat frequently used in daily life, generally including a backrest, a seat and armrests. In pursuit of comfort, people will lean their backs on the backrest of the chair while sitting on it. In order to enhance this comfort, people hope that the backrest can swing within a certain range to accommodate different body weights and leaning postures. Some chairs in the prior art do not have the conditions for the backrest to swing, such as wooden chairs; some chairs, such as chairs made of metal or plastic, can use the elasticity of the material itself to make the backrest swing, but the swing amplitude of such chairs is very small and cannot achieve the effect of enhancing comfort. There are also some chairs whose bottoms have been improved to make them into rocking chairs, which do improve comfort, but because the form of the chair has been changed, it cannot meet the diverse needs of the market. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to enable the backrest of the chair to swing within a certain range and enhance the comfort of the seat, the present invention provides a chair with an elastic component, which can enable the backrest to swing within a certain range and provide elastic force during the swinging.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a recliner, comprising a base, a backrest pivoted to the base at a first rotating shaft, and an armrest connected to the base, and also comprising an elastic component, the elastic component comprising a spring, a first connecting member and a second connecting member, the first connecting member being fixedly connected to the backrest, the second connecting member being pivoted to the armrest via a second rotating shaft and slidingly matched with the backrest, the first connecting member being located between the second connecting member and the first rotating shaft, the spring being arranged between the first connecting member and the second connecting member, and being able to compress the spring when the first connecting member and the second connecting member are close to each other.

[0005] Preferably, the elastic component further comprises a guide rod with a first end portion limited on the first connecting member, the spring is sleeved on the guide rod, and the second connecting member is slidably engaged with the guide rod.

[0006] Preferably, the first connecting member extends a first sleeve along the axial direction of the guide rod toward the second connecting member, and the second connecting member extends a second sleeve along the axial direction of the guide rod toward the first connecting member, the second sleeve is sleeved on the first sleeve or the first sleeve is sleeved on the second sleeve and they are slidably fitted, and the spring is located in a cavity formed by the first sleeve and the second sleeve.

[0007] Preferably, the guide rod further comprises a limiter fixed on the backrest, the second end of the guide rod is limited by the limiter, and the position of the limiter is suitable for blocking the second connecting member.

[0008] Preferably, the first connecting member is provided with a first groove whose contour matches the first end of the guide rod, the limiting member is provided with a second groove whose contour matches the second end of the guide rod, the first end of the guide rod is inserted into the first groove, and the second end of the guide rod is inserted into the second groove.

[0009] Specifically, the backrest includes a backrest rod, an end of the backrest rod is pivotally connected to the base through a first rotating shaft, the first connecting member is fixedly connected to the backrest rod, the second connecting member is slidably matched with the backrest rod, and the limit member is fixed on the backrest rod.

[0010] Preferably, the backrest includes a backrest rod, an end of the backrest rod is pivotally connected to the base via a first rotating shaft, the first connecting member is fixedly connected to the backrest rod, the second connecting member is slidably matched with the backrest rod, and the spring is sleeved on the backrest rod.

[0011] Preferably, the first connecting member extends a first sleeve toward the second connecting member along the axial direction of the backrest rod, and the second connecting member extends a second sleeve toward the first connecting member along the axial direction of the backrest rod, the second sleeve is sleeved on the first sleeve or the first sleeve is sleeved on the second sleeve and they are slidably fitted, and the spring is located in a cavity formed by the first sleeve and the second sleeve.

[0012] Preferably, it further comprises a limiting member fixed on the backrest rod, wherein the position of the limiting member is suitable for blocking the second connecting member.

[0013] Preferably, the first connecting member, the second connecting member and the limiting member are all sleeved on the backrest rod.

[0014] The beneficial effect of the present invention is that an elastic component is arranged between the backrest and the armrest of the chair, so that the backrest can not only swing relative to the base, but also the elastic component can provide a certain elastic force when the backrest swings; when the user uses the chair, the elastic component controls the swing amplitude of the backrest according to the pressure exerted by the user's back on the backrest; when the user leans back, the elastic force of the elastic component can support the backrest to swing slowly backward and provide cushioning; when the user stands up, the elastic force of the elastic component can restore the backrest, thereby improving the comfort of the chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of embodiment 1 of a recliner.

[0017] Figure 2 The present invention is a side structural schematic diagram of embodiment 1 of a recliner.

[0018] Figure 3 It is a side structural schematic diagram of embodiment 2 of a recliner.

[0019] Figure 4 It is a schematic structural diagram of another embodiment of an armchair without an elastic component.

[0020] Figure 5 It is a schematic structural diagram of another embodiment of an armchair without an elastic component.

[0021] In the figure, 1 is the first rotating shaft, 2 is the armrest, 3 is the front supporting leg, 4 is the rear supporting leg, 5 is the middle frame, 6 is the limiter, 7 is the backrest rod, 8 is the second hinge, 9 is the spring, 10 is the first connecting member, 11 is the second connecting member, 12 is the second rotating shaft, 13 is the guide rod, 10-1 is the first groove, 10-2 is the first sleeve, 11-1 is the second sleeve, and 6-1 is the second groove. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] like Figure 1 and 2 As shown, an embodiment 1 of a recliner is provided, comprising a base, a backrest pivotally connected to the base at a first rotating shaft 1, and an armrest 2 connected to the base. In this example, the chair is a folding chair. The base comprises a front support leg 3, a rear support leg 4, and an intermediate frame 5. A first hinge (obstructed by the armrest in the figure, not shown) is arranged on the armrest 2. The first hinge is fixedly connected to the armrest and cannot move relative to the armrest, or the first hinge is connected to the armrest in a sliding manner and can be locked at multiple locations within the sliding stroke, thereby realizing the function of adjusting the position of the first hinge on the armrest. The upper ends of the front support leg 3 and the rear support leg 4 are pivotally connected to the first hinge, so that the front support leg 3 and the rear support leg 4 support the armrest 2 when the chair is unfolded; the backrest comprises two symmetrically arranged backrest rods 7, and a second hinge 8 is pivotally connected to the rear support leg 4. The end of the backrest rod 7 is pivotally connected to the second hinge 8 through the first rotating shaft 1.

[0026] This armchair also includes an elastic component, which includes a spring 9, a first connecting member 10 and a second connecting member 11. The first connecting member 10 is fixedly connected to the backrest rod 7, and the second connecting member 11 is pivoted to the end of the armrest 2 through a second rotating shaft 12, and the second connecting member 11 and the armrest 2 can rotate around the second rotating shaft 12; the second connecting member 11 is slidably matched with the backrest rod 7, the first connecting member 10 is located between the second connecting member 11 and the first rotating shaft 1, and the spring 9 is arranged between the first connecting member 10 and the second connecting member 11. When a user sits on this armchair and leans on the backrest, the backrest is subjected to pressure and has a tendency to swing backward with the first rotating shaft 1 as the axis; since a triangle is formed between the backrest rod 7, the armrest 2 and the rear support leg 4, when the backrest rod 7 swings backward, the pressure on the user's back will push the second connecting member 11 to move toward the first connecting member 10, and the spring 9 is compressed by the first connecting member 10 and the second connecting member 11, providing elastic force for the backrest. When the user stands up, the rebound force of the spring 9 will reset the backrest.

[0027] In this example, the elastic component also includes a guide rod 13, and the axial direction of the guide rod 13 is parallel to the axial direction of the backrest rod 7. In this example, the guide rod 13 is limited in the axial and radial directions by the first connecting member 10: the guide rod 13 is a cylindrical rod, and the first connecting member 10 is provided with a first groove 10-1, and the first groove 10-1 is a cylindrical groove with a diameter consistent with the diameter of the guide rod 13 or the diameter of the first groove 10-1 is slightly smaller than the diameter of the guide rod 13. The first end of the guide rod 13 is inserted into the first groove 10-1 until the bottom. This structure is convenient for disassembly and assembly. The spring 9 is sleeved on the guide rod 13, and the second connecting member 11 is sleeved on the guide rod 13 and slidably cooperates with the guide rod 13.

[0028] The first connecting member 10 extends a first sleeve 10-2 toward the second connecting member 11 along the axial direction of the guide rod 13, and the second connecting member 11 extends a second sleeve 11-1 toward the first connecting member 10 along the axial direction of the guide rod 13. The second sleeve 11-1 is sleeved on the first sleeve 10-2. The second sleeve 11-1 and the first sleeve 10-2 are hollow cylindrical. The inner diameter of the second sleeve 11-1 is consistent with the outer diameter of the first sleeve 10-2 or slightly larger than the outer diameter of the first sleeve 10-2, so that the second sleeve 11-1 and the first sleeve 10-2 are slidably matched. In some other embodiments, the first sleeve is sleeved on the second sleeve. The spring 9 is located in the cavity formed by the first sleeve 10-2 and the second sleeve 11-1. The cooperation of the first sleeve 10-2 and the second sleeve 11-1 further enhances the stability of the elastic component and the guiding property of the second connecting member 11 during movement, and can also protect the spring 9 from corrosion.

[0029] In order to prevent the first sleeve 10-2 and the second sleeve 11-1 from being separated from each other, the elastic component further includes a stopper 6 fixed on the backrest. When the second connecting member 11 slides away from the first connecting member 10, before the first sleeve 10-2 and the second sleeve 11-1 are separated, the second connecting member 11 is blocked by the stopper 6. In this example, when the backrest is unfolded, the spring 9 is in a relaxed and slightly compressed state, and both ends of the spring 9 are against the first connecting member 10 and the second connecting member 11, so that the backrest can always obtain the elastic force of the spring 9 in the entire movement range of the second connecting member 11.

[0030] In order to further limit the guide rod 13, the limiting member 6 is provided with a second groove 6-1, which is a cylindrical groove having a diameter consistent with that of the guide rod 13 or a diameter slightly smaller than that of the guide rod 13. The second end of the guide rod 13 is inserted into the second groove 6-1 to the bottom.

[0031] like Figure 3As shown, it is the embodiment 2 of this armchair, which is different from the embodiment 1 in that no guide rod is used, but the backrest rod 7 is used as the guide rod. The first connecting member 10 and the stopper 6 are both sleeved on the backrest rod 7, the second connecting member 11 is sleeved on the backrest rod 7 and slidably cooperates with the backrest rod 7, and the spring 9 is also sleeved on the backrest rod 7.

[0032] The first connecting member 10 extends a first sleeve 10-2 toward the second connecting member 11 along the axial direction of the backrest rod 7, and the second connecting member 11 extends a second sleeve 11-1 toward the first connecting member 10 along the axial direction of the backrest rod 7. The second sleeve 11-1 is sleeved on the first sleeve 10-2. The second sleeve 11-1 and the first sleeve 10-2 are hollow cylindrical. The inner diameter of the second sleeve 11-1 is consistent with the outer diameter of the first sleeve 10-2 or slightly larger than the outer diameter of the first sleeve 10-2, so that the second sleeve 11-1 and the first sleeve 10-2 are slidably matched. In some other embodiments, the first sleeve is sleeved on the second sleeve. The spring 9 is located in the cavity formed by the first sleeve 10-2 and the second sleeve 11-1. The inner diameter of the first sleeve 10-2 is consistent with the outer diameter of the spring 9 or slightly larger than the outer diameter of the spring 9.

[0033] Figure 4 Another embodiment of a folding chair that can use the elastic components in Embodiments 1 and 2 is shown.

[0034] Figure 5 Another embodiment of a folding chair that can use the elastic components in Embodiments 1 and 2 is shown.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A recliner, comprising a base, a backrest pivotally connected to the base at a first rotating shaft, and an armrest connected to the base, characterized in that: It also includes an elastic component, the elastic component includes a spring, a first connecting member and a second connecting member, the first connecting member is fixedly connected to the backrest, the second connecting member is pivotally connected to the armrest through a second rotating shaft and is slidably matched with the backrest, the first connecting member is located between the second connecting member and the first rotating shaft, the spring is arranged between the first connecting member and the second connecting member, and the spring can be compressed when the first connecting member and the second connecting member are close to each other; The elastic component further comprises a guide rod with a first end portion limited on the first connecting member, the spring is sleeved on the guide rod, and the second connecting member is slidably matched with the guide rod; The first connecting member extends a first sleeve toward the second connecting member along the axial direction of the guide rod, and the second connecting member extends a second sleeve toward the first connecting member along the axial direction of the guide rod. The second sleeve is sleeved on the first sleeve or the first sleeve is sleeved on the second sleeve and they are slidably fitted, and the spring is located in a cavity formed by the first sleeve and the second sleeve.

2. A recliner according to claim 1, characterized in that: It also includes a limiting member fixed on the backrest, and the second end of the guide rod is limited to the limiting member, and the position of the limiting member is suitable for blocking the second connecting member.

3. A recliner according to claim 2, characterized in that: The first connecting member is provided with a first groove whose contour matches the first end of the guide rod, and the limiting member is provided with a second groove whose contour matches the second end of the guide rod. The first end of the guide rod is inserted into the first groove, and the second end of the guide rod is inserted into the second groove.

4. A recliner according to claim 2 or 3, characterized in that: The backrest includes a backrest rod, an end of the backrest rod is pivotally connected to the base through a first rotating shaft, the first connecting member is fixedly connected to the backrest rod, the second connecting member is slidably matched with the backrest rod, and the limit member is fixed on the backrest rod.

5. The armchair according to claim 1, characterized in that: The backrest comprises a backrest rod, the end of the backrest rod is pivotally connected to the base through a first rotating shaft, the first connecting member is fixedly connected to the backrest rod, the second connecting member is slidably matched with the backrest rod, and the spring is sleeved on the backrest rod.

6. A recliner according to claim 5, characterized in that: The first connecting member extends a first sleeve toward the second connecting member along the axial direction of the backrest rod, and the second connecting member extends a second sleeve toward the first connecting member along the axial direction of the backrest rod. The second sleeve is sleeved on the first sleeve or the first sleeve is sleeved on the second sleeve and they are slidably fitted, and the spring is located in a cavity formed by the first sleeve and the second sleeve.

7. A recliner according to claim 6, characterized in that: It also includes a limiting member fixed on the backrest rod, and the position of the limiting member is suitable for blocking the second connecting member.

8. A recliner according to claim 7, characterized in that: The first connecting member, the second connecting member and the limiting member are all sleeved on the backrest rod.

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