Seat backrest and seat with same

Abstract

The utility model discloses a seat backrest and a seat with the same. The seat backrest comprises a seat backrest keel, a seat back and a driving mechanism, and the seat back is located on the front side of the keel and can move relative to the keel; one end of the driving mechanism is connected with the keel, the other end of the driving mechanism is connected with the chair back, and the driving mechanism is used for driving the chair back to move forwards and downwards or backwards and upwards. According to the seat backrest disclosed by the utility model, the driving mechanism drives the seat back to move forwards and downwards or drives the seat back to move backwards and upwards, and when the body type of a user is small, the driving mechanism can drive the seat back to move forwards and downwards, so that the waist of the small-body-type user can be better supported, and the use body feeling of the small-body-type user is better; when the body of the user is large, the driving mechanism can drive the chair back to move backwards and upwards, the waist of the large-body-type user can be better supported, and the using body feeling of the large-body-type user is good. The chair back can adapt to users of different body types, and the use requirements of the users of different body types are met.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of seats, in particular to a seat back and a seat having the same. Background Art

[0002] In the prior art, most chair backs can only be adjusted up and down, which is limited in adapting to people of different body shapes. They lack multi-dimensional adjustment and cannot meet the needs of users of different body shapes. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a seat backrest that can adapt to users of different body shapes and meet the needs of users of different body shapes.

[0004] The present invention also provides a seat, which comprises the seat backrest.

[0005] The seat back according to an embodiment of the present invention includes a keel, a seat back and a driving mechanism, wherein the seat back is located in front of the keel and is movable relative to the keel; one end of the driving mechanism is connected to the keel, and the other end is connected to the seat back, for driving the seat back to move forward and downward or backward and upward.

[0006] According to the seat back of the embodiment of the utility model, the drive mechanism drives the seat back forward and downward or backward and upward. When the user is small, the drive mechanism can drive the seat back forward and downward, which can better support the waist of the small user, making the small user feel better. When the user is large, the drive mechanism can drive the seat back backward and upward, which can better support the waist of the large user, making the large user feel better. The seat back can adapt to users of different body shapes and meet the needs of users of different body shapes.

[0007] In some embodiments of the present invention, the driving mechanism includes a driving device and a connecting rod, the driving device is connected to the keel and the chair back, and is used to drive the chair back to move in the forward and backward directions; one end of the connecting rod is rotatably connected to the keel, and the other end is rotatably connected to the chair back.

[0008] In some embodiments of the present invention, the connecting rod is multiple and includes a first connecting rod and a second connecting rod respectively provided on the upper and lower sides of the chair back.

[0009] In some embodiments of the present invention, the driving device is disposed between the first connecting rod and the second connecting rod.

[0010] In some embodiments of the present invention, the driving device is a pneumatic spring, one end of the driving device is rotatably connected to the keel, and the other end is rotatably connected to the chair back.

[0011] In some embodiments of the present invention, the connecting rod is an aluminum alloy part.

[0012] In some embodiments of the present invention, the driving mechanism is rotatably connected to the keel via a locking screw; and / or the driving mechanism is rotatably connected to the chair back via a locking screw.

[0013] In some embodiments of the present invention, the keel is a nylon piece; and / or the chair back is a nylon piece.

[0014] The seat according to the embodiment of the present invention comprises a seat surface and the above-mentioned seat backrest, and the lower end of the keel is fixedly connected to the rear side of the seat surface.

[0015] According to the chair of the embodiment of the utility model, the drive mechanism drives the chair back to move forward and downward or backward and upward. When the user is small, the drive mechanism can drive the chair back forward and downward, which can better support the waist of the small user, so that the small user has a better sense of use; when the user is large, the drive mechanism can drive the chair back backward and upward, which can better support the waist of the large user, so that the large user has a better sense of use. The chair back can adapt to users of different body shapes and meet the needs of users of different body shapes.

[0016] In some embodiments of the present invention, the seat further includes a control switch, and the control switch controls the drive mechanism to drive the seat back to move forward and downward or to drive the seat back to move backward and upward.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a left side view of a seat back according to an embodiment of the present utility model;

[0020] Figure 2 is a perspective view of a seat back according to an embodiment of the present utility model;

[0021] Figure 3 is a rear view of a seat back according to an embodiment of the present invention;

[0022] Figure 4 is an exploded view of a seat back according to an embodiment of the present invention;

[0023] Figure 5 It is an exploded view of the seat back according to another angle of the embodiment of the present invention.

[0024] Reference numerals:

[0025] 100. Seat back;

[0026] 1. Keel; 11. Second mounting hole;

[0027] 2. Chair back; 21. Third mounting hole;

[0028] 3. Driving mechanism; 31. Driving device; 32. Connecting rod; 321. First connecting rod; 322. Second connecting rod; 33. First mounting hole. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Reference below Figure 1-Figure 5 A seat back 100 according to an embodiment of the present invention will be described.

[0033] like Figure 1 and Figure 2 As shown, the seat back 100 according to the embodiment of the present invention includes a keel 1 , a seat back 2 and a driving mechanism 3 .

[0034] Specifically, the seat back 100 is used in a chair, and the keel 1 is the basic support structure of the seat back 100, bearing the user's weight and various forces during use. The main function of the seat back 2 is to support the user's back, relieve pressure on the back and spine, and thus improve user comfort.

[0035] Furthermore, the design of the chair back 2 takes ergonomic principles into consideration to ensure that it can fit the user's back curve and provide optimal support.

[0036] The chair back 2 is located in front of the keel 1 and is movable relative to the keel 1 . The position between the chair back 2 and the keel 1 can be adjusted according to the needs of the user to meet the needs of different users.

[0037] One end of the driving mechanism 3 is connected to the keel 1, and the other end is connected to the chair back 2, for driving the chair back 2 to move forward and downward or backward and upward, wherein the front-to-back direction and the up-down direction are as shown in FIG. Figure 1 As shown. It is understandable that when the user is small, the drive mechanism 3 can drive the chair back 2 to move forward and downward, making the seat depth shallower. The downward movement of the chair back 2 can better support the waist of a small user and better fit the spine shape of a small user, so that the small user has a better physical experience. When the user is large, the drive mechanism 3 can drive the chair back 2 to move backward and upward, making the seat depth deeper. The upward movement of the chair back 2 can better support the waist of a large user and better fit the spine shape of a large user, so that the large user has a better physical experience.

[0038] Therefore, the chair back 2 can adapt to users of different body shapes and meet the usage needs of users of different body shapes.

[0039] According to the seat back 100 of the embodiment of the present invention, the drive mechanism 3 drives the seat back 2 forward and downward or backward and upward. When the user is small, the drive mechanism 3 can drive the seat back 2 forward and downward, which can better support the waist of the small user, making the small user feel better. When the user is large, the drive mechanism 3 can drive the seat back 2 backward and upward, which can better support the waist of the large user, making the large user feel better. The seat back 2 can adapt to users of different body shapes and meet the needs of users of different body shapes.

[0040] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, the drive mechanism 3 includes a drive device 31 and a connecting rod 32. The drive device 31 is connected to the keel 1 and the backrest 2 and is used to drive the backrest 2 to move forward and backward. One end of the connecting rod 32 is rotationally connected to the keel 1, and the other end is rotationally connected to the backrest 2. When the drive device 31 drives the backrest 2 forward, the connecting rod 32, which is rotationally connected to both the keel 1 and the backrest 2, can restrain the backrest 2, causing the backrest 2 to move forward and downward. When the drive device 31 drives the backrest 2 backward, the connecting rod 32, which is rotationally connected to both the keel 1 and the backrest 2, can restrain the backrest 2, causing the backrest 2 to move backward and upward. The driving process of the drive mechanism 3 is relatively simple and reliable.

[0041] Further, if Figure 1 and Figure 5 As shown, there are multiple connecting rods 32, including a first connecting rod 321 and a second connecting rod 322, respectively, disposed on the upper and lower sides of the chair back 2. When the drive device 31 drives the chair back 2 forward, the first connecting rod 321 and the second connecting rod 322, which are rotationally connected to both the keel 1 and the chair back 2, constrain the chair back 2 at its upper and lower ends, causing the chair back 2 to move forward and downward. When the drive device 31 drives the chair back 2 backward, the first connecting rod 321 and the second connecting rod 322, which are rotationally connected to both the keel 1 and the chair back 2, constrain the chair back 2 at its upper and lower ends, causing the chair back 2 to move backward and upward. The driving process of the drive mechanism 3 is relatively simple and reliable.

[0042] Furthermore, if Figure 1 and Figure 5 As shown, the driving device 31 is disposed between the first connecting rod 321 and the second connecting rod 322. When the driving device 31 drives the chair back 2, the first connecting rod 321 and the second connecting rod 322 constrain the chair back 2 symmetrically, making the forward and downward movement of the chair back 2 or the backward and upward movement of the chair back 2 relatively smooth, providing a better user experience.

[0043] In some embodiments of the present invention, the drive device 31 is a pneumatic spring. Pneumatic springs have a relatively simple structure, primarily consisting of gas and sealing elements. They are lightweight, reducing the overall weight of the seat back 100 and making installation, maintenance, and replacement more convenient and quick. One end of the drive device 31 is pivotally connected to the keel 1, and the other end is pivotally connected to the seat back 2. This prevents interference when the pneumatic spring drives the seat back 2, ensuring a more reliable movement of the seat back 2.

[0044] In some embodiments of the present invention, the connecting rod 32 is an aluminum alloy part. The connecting rod 32 is light in weight, which can reduce the overall weight of the seat back 100. The connecting rod 32 is also strong, ensuring the restraining effect of the connecting rod 32 on the seat back 2.

[0045] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the drive mechanism 3 is rotatably connected to the keel 1 via a locking screw. It is understood that both ends of the connecting rod 32 and the drive device 31 in the longitudinal direction are provided with a first mounting hole 33, and the keel 1 is provided with a second mounting hole 11 at the mounting position corresponding to the drive mechanism 3. The locking screw can be inserted into the first mounting hole 33 and the second mounting hole 11 to ensure the rotational connection between the drive mechanism 3 and the keel 1. Furthermore, both ends of the locking screw in the axial direction are provided with a screw head with a larger diameter to prevent the locking screw from falling out of the first mounting hole 33 and the second mounting hole 11, making the rotational connection between the drive mechanism 3 and the keel 1 relatively simple and reliable.

[0046] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the drive mechanism 3 is rotatably connected to the chair back 2 via a locking screw. It is understood that first mounting holes 33 are provided at both ends of the connecting rod 32 and the drive mechanism 31 in the longitudinal direction, and a third mounting hole 21 is provided on the chair back 2 at the mounting position corresponding to the drive mechanism 3. The locking screw can be inserted into the first mounting hole 33 and the third mounting hole 21 to ensure the rotatable connection between the drive mechanism 3 and the chair back 2. Furthermore, screw heads with larger diameters are provided at both ends of the locking screw in the axial direction to prevent the locking screw from dislodging from the first mounting hole 33 and the third mounting hole 21, thereby making the rotatable connection between the drive mechanism 3 and the chair back 2 relatively simple and reliable.

[0047] In some embodiments of the present invention, the keel 1 is a nylon member. Nylon members have high hardness, high tensile strength, high bending resistance, high impact strength, and high elongation, so the keel 1 can withstand large stress and impact.

[0048] In some embodiments of the present invention, the chair back 2 is made of nylon. Nylon has high hardness, high tensile strength, high bending resistance, high impact strength, and high elongation, so the chair back 2 can withstand large stress and impact.

[0049] The chair according to the embodiment of the present invention includes a seat and a seat back 100 , wherein the lower end of the keel 1 is fixedly connected to the rear side of the seat, the seat supports the user's buttocks and thighs, and the seat back 100 supports the user's back.

[0050] According to the chair of the embodiment of the present invention, the drive mechanism 3 drives the chair back 2 to move forward and downward or backward and upward. When the user is small, the drive mechanism 3 can drive the chair back 2 forward and downward, which can better support the waist of the small user, so that the small user has a better sense of use; when the user is large, the drive mechanism 3 can drive the chair back 2 backward and upward, which can better support the waist of the large user, so that the large user has a better sense of use. The chair back 2 can adapt to users of different body shapes and meet the needs of users of different body shapes.

[0051] In some embodiments of the present invention, the seat also includes a control switch, which controls the drive mechanism 3 to drive the chair back 2 to move forward and downward or drive the chair back 2 to move backward and upward, which can increase the automation effect of the drive mechanism 3 driving the chair back 2 to move forward and downward or drive the chair back 2 to move backward and upward, thereby improving the user experience.

[0052] For example, a small user turns on the control switch, and the chair back 2 moves forward and downward until it is close to the user's back. The control switch is then turned off, which can better support the small user's waist and better fit the spinal shape of the small user, making the small user feel better. A large user turns on the control switch, leans back, and the chair back 2 moves backward and upward until it reaches the appropriate position. The control switch is then turned off, which can better support the large user's waist and better fit the spinal shape of the large user, making the large user feel better.

[0053] Other structures and operations of the seat back 100 and the seat having the same according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0054] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0055] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A seat back, characterized in that: include: keel; a chair back, the chair back being located in front of the keel and being movable relative to the keel; A driving mechanism, one end of which is connected to the keel and the other end of which is connected to the chair back, is used to drive the chair back to move forward and downward or to drive the chair back to move backward and upward.

2. The seat back according to claim 1, wherein: The driving mechanism comprises: a driving device connected to the keel and the chair back and configured to drive the chair back to move in a front-to-rear direction; A connecting rod, one end of which is rotatably connected to the keel, and the other end of which is rotatably connected to the chair back.

3. The seat back according to claim 2, wherein: The connecting rods are multiple and include a first connecting rod and a second connecting rod respectively arranged on the upper and lower sides of the chair back.

4. The seat back according to claim 3, wherein: The driving device is arranged between the first connecting rod and the second connecting rod.

5. The seat back according to claim 2, wherein: The driving device is a pneumatic spring, one end of which is rotatably connected to the keel, and the other end of which is rotatably connected to the chair back.

6. The seat back according to claim 2, wherein: The connecting rod is an aluminum alloy part.

7. The seat back according to claim 1, wherein: The driving mechanism is rotatably connected to the keel via locking screws; And / or, the driving mechanism is rotationally connected to the chair back via locking screws.

8. The seat back according to claim 1, wherein: The keel is a nylon piece; And / or, the chair back is made of nylon.

9. A seat, characterized in that: include: seat surface; According to the seat back according to any one of claims 1 to 8, the lower end of the keel is fixedly connected to the rear side of the seat surface.

10. The seat according to claim 9, characterized in that Also includes: A control switch controls the drive mechanism to drive the seat back to move forward and downward or to drive the seat back to move backward and upward.

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