Anti-rubbing backrest device and chair and bed having the same

Abstract

The present invention provides an anti-rubbing backrest device, comprising a backrest pad and a backrest frame, wherein a guide rail is arranged on the back plate of the backrest pad, and the backrest frame is slidably connected with the back plate through the guide rail, so that the backrest pad can move relative to the backrest frame through the guide rail. When the user adjusts the backrest angle, the backrest pad can fit the user's back and move relative to the backrest frame following the user's back, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, and in particular to an anti-rubbing backrest device and a chair and a bed having the same. Background Art

[0002] As people's living standards improve, the requirements for the comfort of various types of furniture are getting higher and higher. Chairs and beds are commonly used furniture, and their comfort will directly affect the quality of people's work and life. However, in the prior art, when users adjust the backrest of a chair or bed, it will inevitably cause a large friction with their backs, resulting in a rubbing feeling, which will reduce the user's comfort. Summary of the invention

[0003] The following is an overview of the topics described in detail in this article.

[0004] The embodiments of the present invention provide an anti-rubbing backrest device and a chair and a bed having the same, which can significantly reduce the friction between the user's back and the backrest during the process of the user adjusting the backrest, reduce the feeling of back rubbing, and thus improve the comfort level.

[0005] In a first aspect, an embodiment of the present invention provides an anti-rubbing back-to-back device, comprising:

[0006] A backrest pad, the backrest pad comprising a back plate, and a guide rail is arranged on the back plate;

[0007] A backrest frame is slidably connected to the back plate through the guide rail, so that the backrest cushion can move relative to the backrest frame through the guide rail.

[0008] The anti-rubbing backrest device of the embodiment of the present invention comprises a backrest pad and a backrest frame, a guide rail is arranged on the back plate of the backrest pad, and the backrest frame is slidably connected with the back plate through the guide rail, so that the backrest pad can move relative to the backrest frame through the guide rail. When the user adjusts the backrest angle, the backrest pad can fit the user's back and move with the user's back relative to the backrest frame, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0009] In some embodiments of the present invention, the back cushion further comprises a shock absorbing component disposed on a side of the back plate away from the back frame.

[0010] By arranging a shock-absorbing component on the side of the back plate away from the backrest frame, it can provide a cushion for the user when the user leans on the backrest cushion and can better fit the user's back, thereby improving the comfort level of the backrest device and enhancing the user experience.

[0011] In some embodiments of the present invention, the backrest cushion is detachably connected to the back panel.

[0012] The backrest cushion and the back panel are detachably connected, which makes it convenient for users to replace the backrest cushion with different shapes, materials and colors according to their needs. It is more flexible and convenient to use, improves the comfort level of the backrest device and enhances the user experience.

[0013] In some embodiments of the present invention, buffer limit assemblies are provided at both ends of the guide rail.

[0014] The buffer limit assembly is arranged at both ends of the guide rail, and can limit the back cushion when the back cushion moves relative to the back frame through the guide rail, thereby preventing the back cushion from sliding off the back frame, and can reduce the impact received by the back frame when it moves to the two ends of the guide rail, thereby improving the comfort of the backrest device and enhancing the user experience.

[0015] In some embodiments of the present invention, a plurality of guide rails are provided, and the plurality of guide rails are arranged parallel to each other.

[0016] The backrest cushion is connected to the backrest frame through multiple guide rails, which is equivalent to multiple stress points between the backrest cushion and the backrest frame, making the connection between the backrest cushion and the backrest frame more stable, and the backrest cushion moves more smoothly relative to the backrest frame, which improves the comfort of the backrest device on the one hand and the service life of the backrest device on the other hand. The parallel arrangement of multiple guide rails allows the backrest cushion to move smoothly in the direction of the parallel arrangement of the multiple guide rails, improving the comfort of the backrest device and thus improving the user experience.

[0017] In some embodiments of the present invention, two guide rails are provided and are respectively disposed on the first side of the back plate and the side opposite to the first side.

[0018] By arranging two guide rails respectively on the first side of the back plate and the side opposite to the first side, a stable connection between the back cushion and the back frame and a smooth movement of the back cushion relative to the back frame can be achieved at a relatively low cost.

[0019] In some embodiments of the present invention, the anti-rub backrest device also includes a damping device connected to the back cushion, and the damping device is used to change the damping size when the back cushion and the back frame move relative to each other according to the pressure applied to the back cushion.

[0020] By arranging a damping device to provide damping during the movement of the back cushion relative to the back frame, the movement process can be made more stable, and the damping device can change the damping size when the back cushion and the back frame move relative to each other according to the pressure exerted on the back cushion, so that the backrest device can provide damping of appropriate size according to different situations, thereby improving the comfort level of the backrest device and enhancing the user experience.

[0021] In some embodiments of the present invention, the damping device comprises:

[0022] a pressure sensor connected to the backrest cushion and used to detect the pressure exerted on the backrest cushion;

[0023] a damper connected to the guide rail and used to provide damping when the backrest cushion and the backrest frame perform relative motion;

[0024] A controller is electrically connected to the pressure sensor and the damper, and is used to adjust a damping parameter of the damper according to the pressure detected by the pressure sensor.

[0025] The pressure sensor connected to the back cushion can detect the pressure applied to the back cushion by the user's back. The controller is electrically connected to the pressure sensor and the damper. The damping parameters of the damper are adjusted according to the pressure detected by the pressure sensor, so that the backrest device can provide appropriate damping according to different situations, thereby improving the comfort of the device and enhancing the user experience.

[0026] In a second aspect, an embodiment of the present invention further provides a chair, comprising the anti-rub backrest device as described in the embodiment of the first aspect above.

[0027] The chair of the embodiment of the present invention includes the anti-rubbing backrest device in the embodiment of the first aspect as described above, and the anti-rubbing backrest device includes a backrest pad and a backrest frame, and a guide rail is arranged on the back plate of the backrest pad, and the backrest frame is slidably connected with the back plate through the guide rail, so that the backrest pad can move relative to the backrest frame through the guide rail. When the user adjusts the backrest angle, the backrest pad can fit the user's back and move with the user's back relative to the backrest frame, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0028] In a third aspect, an embodiment of the present invention further provides a bed, comprising the anti-rub back-to-back device as described in the embodiment of the first aspect above.

[0029] The bed of the embodiment of the present invention includes the anti-rubbing backrest device in the embodiment of the first aspect as described above, and the anti-rubbing backrest device includes a backrest cushion and a backrest frame, and a guide rail is arranged on the back plate of the backrest cushion, and the backrest frame is slidably connected with the back plate through the guide rail, so that the backrest cushion can move relative to the backrest frame through the guide rail. When the user adjusts the backrest angle, the backrest cushion can fit the user's back and move with the user's back relative to the backrest frame, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of an anti-rubbing back-to-back device provided in an embodiment of the present invention;

[0032] Figure 2 for Figure 1 Another angle structural schematic diagram of the anti-rub back-to-back device shown in .

[0033] Figure numerals: anti-rub backrest device 100, back cushion 110, backboard 111, shock-absorbing assembly 112, guide rail 113, buffer limit assembly 114, fixing assembly 115, backrest frame 120, cross beam 121, longitudinal beam 122, slider assembly 123, armrest 130, rotating shaft 131. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation on the present invention.

[0036] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] The present invention provides an anti-rubbing backrest device and a chair and a bed having the same, which can enable the backrest cushion to fit the user's back and move with the user's back relative to the backrest frame when the user adjusts the angle of the backrest device, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0039] In a first aspect, an embodiment of the present invention provides an anti-rub back-to-back device 100 .

[0040] Reference Figure 1 , Figure 2 In some embodiments of the present invention, the anti-rubbing backrest device 100 includes a backrest pad 110 and a backrest frame 120. A guide rail 113 is provided on the back plate 111 of the backrest pad 110. The backrest frame 120 is slidably connected to the back plate 111 through the guide rail 113, so that the backrest pad 110 can move relative to the backrest frame 120 through the guide rail 113. When the user adjusts the backrest angle, the backrest pad 110 can fit the user's back and move with the user's back relative to the backrest frame 120, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0041] In some embodiments of the present invention, a plurality of guide rails 113 are provided, and the plurality of guide rails 113 are arranged parallel to each other. The back cushion 110 is connected to the back frame 120 through the plurality of guide rails 113, which is equivalent to having a plurality of force points between the back cushion 110 and the back frame 120, so that the connection between the back cushion 110 and the back frame 120 is more stable, and the movement of the back cushion 110 relative to the back frame 120 is more stable, which improves the comfort of the backrest device on the one hand, and improves the service life of the backrest device on the other hand. The plurality of guide rails 113 are arranged in parallel so that the back cushion 110 moves smoothly in the direction in which the plurality of guide rails 113 are arranged in parallel, which improves the comfort of the backrest device and thus improves the user experience.

[0042] Reference Figure 1 , Figure 2 In some embodiments of the present invention, two guide rails 113 are provided and are respectively provided on the first side and the opposite side of the first side of the back plate 111, and the two guide rails 113 are provided in parallel with each other. By providing two guide rails 113 respectively provided on the first side and the opposite side of the first side of the back plate 111, a stable connection between the back cushion 110 and the back frame 120 and a smooth movement of the back cushion 110 relative to the back frame 120 can be achieved at a relatively low cost. For example, the guide rails 113 can be respectively provided on the left and right sides of the back plate 111. When the guide rails 113 are respectively provided longitudinally on the left and right sides of the back plate 111 and are provided in parallel with each other, the back cushion 110 can slide up and down relative to the back frame 120.

[0043] Reference Figure 1 , Figure 2In some embodiments, buffer limiter components are provided at both ends of the guide rail 113. For example, rubber components are provided at both ends of the guide rail 113, and spring components are provided at both ends of the guide rail 113. The buffer limiter component 114 can prevent the back cushion 110 from being limited when the back cushion 110 moves relative to the back frame 120 through the guide rail 113, thereby preventing the back cushion 110 from sliding off the back frame 120, and can reduce the impact of the back frame 120 when it moves to both ends of the guide rail 113, thereby improving the comfort level of the anti-rubbing backrest device 100 and enhancing the user experience.

[0044] In some embodiments, the backrest frame 120 is composed of a crossbeam 121 and a longitudinal beam 122 connected to each other. There may be multiple crossbeams 121 and longitudinal beams 122, which are not specifically limited in the embodiments of the present invention. A slider assembly 123 is also provided at a position corresponding to the guide rail 113 on the longitudinal beam 122, one end of the slider assembly 123 is connected to the longitudinal beam 122, and the other end is slidably connected to the guide rail 113.

[0045] Reference Figure 1 , Figure 2 The upper and lower cross beams 121 are provided, and the left and right longitudinal beams 122 are provided. The two ends of the upper and lower cross beams 121 are respectively connected to the left and right longitudinal beams 122 to form the backrest frame 120. The backrest frame 120 is formed by the cross beams 121 and the longitudinal beams 122, which can save materials and reduce manufacturing costs while ensuring the strength of the backrest frame 120.

[0046] Reference Figure 1 , Figure 2 In some embodiments, the anti-rub backrest device 100 further includes an armrest 130 connected to the backrest frame 120. The armrest 130 is located on the left and right sides of the anti-rub backrest device 100 and is respectively connected to the longitudinal beams 122 on the left and right sides of the backrest frame 120. By providing the armrest 130, the user can use the anti-rub backrest device 100 in a more comfortable posture, thereby improving the user experience.

[0047] Reference Figure 1 , Figure 2 In some embodiments, the armrest 130 is connected to the longitudinal beam 122 of the backrest frame 120 via the rotation axis 131. In this way, the armrest 130 can rotate around the rotation axis 131. The user can adjust the armrest 130 to a suitable angle as needed, thereby improving the user experience.

[0048] In some embodiments, the armrest 130 can rotate as the angle of the anti-rub backrest device 100 changes. For example, when the user adjusts the angle of the anti-rub backrest device 100, the armrest 130 automatically rotates relative to the backrest frame 120, so that during the entire process of adjusting the angle of the anti-rub backrest device 100, the user's hand can maintain a fixed angle with the ground together with the armrest 130, thereby improving the user's experience.

[0049] Reference Figure 1 , Figure 2 In some embodiments of the present invention, the backrest cushion 110 further includes a shock absorbing component 112 disposed on the side of the back plate 111 away from the backrest frame 120. The material of the shock absorbing component 112 includes but is not limited to sponge and latex. By arranging the shock absorbing component 112 on the side of the back plate 111 away from the backrest frame 120, it can provide a cushion for the user when the user leans on the backrest cushion 110 and can better fit the user's back, thereby improving the comfort of the backrest device and enhancing the user experience.

[0050] In some embodiments, the shock absorbing assembly 112 is detachably connected to the back plate 111. For example, the shock absorbing assembly 112 is connected to the back plate 111 by a snap, or the shock absorbing assembly 112 is connected to the back plate 111 by screws. The present invention does not specifically limit the detachable connection between the shock absorbing assembly 112 and the back plate 111. The detachable connection between the back cushion 110 and the back plate 111 facilitates the user to replace the back cushion 110 with different shapes, materials, and colors according to needs, which is more flexible and convenient to use, can meet the personalized needs of users, and improves the user experience.

[0051] In some embodiments, a fixing assembly 115 is provided on the back plate 111, and the fixing assembly 115 is composed of a fixing block and a fixing screw. Correspondingly, a screw hole is provided on the damping assembly 112 at a position corresponding to the fixing screw. The fixing screw passes through the fixing block and is connected to the screw hole on the damping assembly 112, thereby realizing a detachable connection between the back plate 111 and the damping assembly 112.

[0052] In some embodiments of the present invention, the anti-rub backrest device 100 further includes a damping device connected to the backrest pad 110, and the damping device is used to change the damping magnitude when the backrest pad 110 and the backrest frame 120 perform relative motion according to the pressure applied to the backrest pad 110. By providing the damping device to provide damping during the motion of the backrest pad 110 relative to the backrest frame 120, the motion process can be made more stable, and the damping device can change the damping magnitude when the backrest pad 110 and the backrest frame 120 perform relative motion according to the pressure applied to the backrest pad 110, so that the backrest device can provide appropriate damping magnitude according to different situations, thereby improving the comfort of the backrest device and enhancing the user experience.

[0053] In some embodiments of the present invention, the damping device comprises:

[0054] The pressure sensor is connected to the back cushion 110 and is used to detect the pressure exerted on the back cushion 110 . The pressure sensor is disposed at a position connected to the back cushion 110 and capable of detecting the pressure exerted on the back cushion 110 .

[0055] The damper is connected to the guide rail 113 and is used to provide damping when the back cushion 110 and the back frame 120 perform relative motion.

[0056] The controller is electrically connected to the pressure sensor and the damper and is used to adjust the damping parameter of the damper according to the pressure detected by the pressure sensor.

[0057] The pressure applied to the back cushion 110 by the user's back can be detected by the pressure sensor connected to the back cushion 110. The controller is electrically connected to the pressure sensor and the damper. The damping parameter of the damper is adjusted according to the pressure detected by the pressure sensor, so that the backrest device can provide the appropriate amount of damping according to different situations, thereby improving the comfort of the backrest device and enhancing the user experience.

[0058] In some embodiments, the pressure sensor is disposed at a position connected to the back cushion 110 and is capable of detecting the pressure exerted on the back cushion 110. For example, the pressure sensor can be disposed at the connection between the slider assembly 123 and the guide rail 113. The pressure sensor can also be disposed between the back plate 111 and the buffer assembly. For another example, the pressure sensor can be disposed between the guide rail 113 and the back plate 111.

[0059] In some embodiments, the damper may be disposed inside the guide rail 113 or outside the guide rail 113 , and this is not specifically limited in the embodiments of the present invention.

[0060] In some embodiments, when the pressure value measured by the pressure sensor increases, the controller controls the damper to increase the damping, and when the pressure value measured by the pressure sensor decreases, the controller controls the damper to reduce the damping, thereby providing appropriate damping according to the pressure exerted on the backrest cushion 110 by the user's back, thereby improving the comfort of the backrest and enhancing the user's experience.

[0061] In some embodiments, a plurality of pressure sensors are provided, and data from the plurality of pressure sensors can enable the controller to better adjust the damping parameters of the damper.

[0062] In a second aspect, an embodiment of the present invention provides a chair, comprising the anti-rub backrest device 100 as described in the embodiment of the first aspect above.

[0063] The chair of the embodiment of the present invention includes the anti-rubbing backrest device 100 in the embodiment of the first aspect as described above, and the anti-rubbing backrest device 100 includes a backrest pad 110 and a backrest frame 120. A guide rail 113 is provided on the back plate 111 of the backrest pad 110, and the backrest frame 120 is slidably connected with the back plate 111 through the guide rail 113, so that the backrest pad 110 can move relative to the backrest frame 120 through the guide rail 113. When the user adjusts the backrest angle, the backrest pad 110 can fit the user's back and move with the user's back relative to the backrest frame 120, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0064] In a third aspect, an embodiment of the present invention provides a bed, comprising the anti-rub back-to-back device 100 as described in the embodiment of the first aspect above.

[0065] The bed of the embodiment of the present invention includes the anti-rubbing backrest device 100 in the embodiment of the first aspect as described above, and the anti-rubbing backrest device 100 includes a backrest cushion 110 and a backrest frame 120. A guide rail 113 is provided on the back plate 111 of the backrest cushion 110, and the backrest frame 120 is slidably connected with the back plate 111 through the guide rail 113, so that the backrest cushion 110 can move relative to the backrest frame 120 through the guide rail 113. When the user adjusts the backrest angle, the backrest cushion 110 can fit the user's back and move with the user's back relative to the backrest frame 120, thereby greatly reducing the friction between the user's back and the backrest device, reducing the feeling of back rubbing, improving the comfort level, and enhancing the user experience.

[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An anti-rubbing back-to-back device, characterized in that: include: A backrest pad, the backrest pad comprising a back plate, and a guide rail is arranged on the back plate; a backrest frame, the backrest frame being slidably connected to the back plate via the guide rail, so that the backrest cushion can move relative to the backrest frame via the guide rail; The anti-rubbing backrest device also includes a damping device connected to the backrest cushion, and the damping device is used to change the damping of the backrest cushion and the backrest frame when the backrest cushion moves relative to each other according to the pressure applied to the backrest cushion; The damping device comprises: a pressure sensor connected to the backrest cushion and used to detect the pressure exerted on the backrest cushion; a damper connected to the guide rail and used to provide damping when the backrest cushion and the backrest frame perform relative motion; A controller is electrically connected to the pressure sensor and the damper, and is used to adjust a damping parameter of the damper according to the pressure detected by the pressure sensor.

2. The anti-rubbing back-to-back device according to claim 1, characterized in that: The backrest cushion also includes a shock absorbing component arranged on a side of the back plate away from the backrest frame.

3. The anti-rubbing back-to-back device according to claim 2, characterized in that: The backrest cushion is detachably connected to the back plate.

4. The anti-rubbing back-to-back device according to claim 1, characterized in that: Buffering and limiting components are arranged at both ends of the guide rail.

5. The anti-rubbing back-to-back device according to claim 1, characterized in that: A plurality of guide rails are provided, and the plurality of guide rails are arranged parallel to each other.

6. The anti-rubbing back-to-back device according to claim 4, characterized in that: The guide rails are provided with two and are respectively arranged on the first side of the back plate and the side opposite to the first side.

7. A chair, characterized in that: The invention comprises an anti-rubbing back-to-back device as claimed in any one of claims 1 to 6.

8. A bed, characterized in that: The invention comprises an anti-rubbing back-to-back device as claimed in any one of claims 1 to 6.

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