Backrest of seat and seat

Abstract

The utility model discloses a backrest of a seat and the seat. The backrest comprises a backrest main body and a supporting piece, the backrest main body is provided with a plurality of openings, the plurality of openings are positioned on the side edge of the backrest main body along the transverse direction, and each opening extends from the edge of the side edge to the direction of the other side edge; the backrest body is further provided with two sets of supporting positions, the two sets of supporting positions are arranged at intervals in the transverse direction or the longitudinal direction of the backrest body, each set of supporting positions comprises at least one supporting position, and the supporting pieces are connected to the two sets of supporting positions. According to the utility model, when the leaning angle or the leaning posture of the user is changed, the backrest main body can adapt to the curve of the human body to deform based on the plurality of openings formed in the backrest main body so as to adapt to the shape of the part of the human body. In addition, the supporting piece of the backrest can support the backrest body, and the attaching effect of the backrest body and the back and / or the waist of the human body can be further enhanced. In conclusion, the backrest of the seat can improve the comfort level when the user uses the seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat, especially a backrest of a seat and the seat. BACKGROUND

[0002] In offices, study rooms and other places, seats are commonly seen, which can meet the needs of people sitting to work, study or rest.

[0003] When a user sits on a seat, his back is usually leaned against the backrest of the seat. In the related art, the backrest of the seat is stiff in line, and the structure design does not meet the curve requirements of the back and waist of the body, so it cannot provide good fitting support for each part of the back and waist of the body. Therefore, when the user changes the leaning angle or leaning posture, some parts of the back and waist of the body are likely to be suspended or not well supported, and the user is likely to feel fatigue, soreness and other discomfort after long leaning, which is not comfortable to use. SUMMARY

[0004] The main purpose of the utility model is to provide a backrest of a seat, which aims to improve the comfort of the user when using the seat.

[0005] To achieve the above-mentioned purpose, the utility model provides a backrest of a seat, which comprises a backrest main body and a support piece.

[0006] The backrest main body is provided with a plurality of openings, which are located on the side edges of the backrest main body along the transverse direction thereof, and each opening extends from the edge of the side edge where it is located towards the direction of the other side edge.

[0007] The backrest main body is also provided with two groups of support positions, which are arranged at intervals along the transverse direction or longitudinal direction of the backrest main body. Each group of support positions comprises at least one support position, and the support piece is connected to the two groups of support positions.

[0008] In some embodiments, the plurality of openings are divided into two groups, and the two groups of openings are arranged oppositely along the transverse direction of the backrest main body.

[0009] Each group of openings comprises at least one opening.

[0010] In some embodiments, the backrest main body comprises:

[0011] A plurality of support ribs are arranged at intervals along the longitudinal direction of the backrest main body, and the gap between any two adjacent support ribs forms the opening.

[0012] Among them, the two groups of support positions are arranged on at least part of the support ribs in the plurality of support ribs.

[0013] In some embodiments, the two groups of support positions are symmetrically arranged about a center line of the backrest body when the two groups of support positions are spaced apart along a transverse direction of the backrest body;

[0014] Each group of support positions comprises a plurality of support positions, and each of the plurality of support positions is arranged on a support rib.

[0015] In some embodiments, any two adjacent support ribs are connected by a connecting portion, and the adjacent connecting portions are arranged staggered along a longitudinal direction of the backrest body.

[0016] In some embodiments, the support member comprises a first support member having two support portions arranged oppositely, one of the two support portions is connected with one of the groups of support positions, and the other is connected with the other group of support positions.

[0017] In some embodiments, the support portion and the support position are movably connected.

[0018] In some embodiments, the support member further comprises at least two groups of second support members, and the at least two groups of second support members are arranged on the two support portions, respectively.

[0019] Each group of the second support members comprises at least one second support member, and each of the second support members is movably connected with the support portion, and each of the support portions is movably connected with a group of support positions corresponding thereto through a group of second support members arranged thereon.

[0020] In some embodiments, the support position is provided with a receiving cavity, and the second support member is provided with a ball connector, and the ball connector is received in the receiving cavity to movably connect the second support member with the support position.

[0021] In some embodiments, the backrest body is elastically deformable; and / or,

[0022] Each of the support ribs is formed with a curved surface, and the curved surface is concave towards a human body along a transverse direction of the backrest body.

[0023] In some embodiments, the backrest body further comprises a first support structure corresponding to the structure of the backrest body, and the first support structure is connected to a side of the backrest body facing the human body.

[0024] In some embodiments, the backrest body further comprises a second support structure corresponding to the structure of the backrest body, and the second support structure is connected between the first support structure and the backrest body.

[0025] In some embodiments, one of the backrest body and the second support structure is provided with a plug hole, the other is provided with a plug part matched with the plug hole, and the second support structure is plugged into the plug hole through the plug part to achieve detachable connection with the backrest body.

[0026] The utility model also provides a seat, the seat includes seat body and the backrest of the seat as described above, the backrest of the seat is connected with the seat body.

[0027] The backrest of the seat provided by the utility model technical scheme comprises a backrest body and a support part, the backrest body can be used to bear the back and / or waist of a user, when the reclining angle or reclining posture of the user changes, the backrest body can be deformed according to the human body curve based on the plurality of openings arranged thereon, and then adapt to the human body part form. In addition, the support part of the backrest can provide support for the backrest body, and the fitting effect of the backrest body and the back and / or waist of the human body can be further enhanced. In conclusion, the backrest of the seat of the utility model can improve the comfort of the user when using the seat. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic view of the backrest in an embodiment of the utility model;

[0029] Figure 2 It is Figure 1 It is an exploded view of the backrest in an embodiment;

[0030] Figure 3 It is Figure 1 It is a structural schematic view of the backrest body of the backrest in an embodiment;

[0031] Figure 4 It is Figure 3 It is an enlarged view of A in the embodiment;

[0032] Figure 5 It is Figure 1 It is an exploded view of the support part of the backrest in an embodiment;

[0033] Figure 6 It is Figure 1 It is an exploded view of the backrest body of the backrest in an embodiment. DETAILED DESCRIPTION

[0034] The scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments in the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0036] It should also be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element.

[0037] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0038] The seat is a seat for people to work, study or rest, and its technology is developing towards more humanization and more intelligence, striving to provide comfortable and healthy sitting experience for users.

[0039] The embodiment of the present application provides a backrest 100 of a seat, when a human body sits on the seat, the back and / or waist can lean on the backrest 100, and the backrest 100 can provide support for the back and / or waist of the human body.

[0040] Referring to Figure 1 and Figure 2 The backrest 100 of the seat comprises a backrest body 110 and a support piece 120.

[0041] The backrest body 110 is provided with a plurality of openings K, the plurality of openings K are located at the side edges of the backrest body 110 along the transverse direction thereof, and each opening K extends from the edge of the side edge where it is located to the direction of the other side edge.

[0042] The backrest body 110 is also provided with two groups of support positions W, the two groups of support positions W are arranged at intervals along the transverse direction or the longitudinal direction of the backrest body 110, each group of support positions W comprises at least one support position W, and the support piece 120 is connected to the two groups of support positions W.

[0043] The backrest body 110, as the core support structure of the backrest, can be made of nylon, metal, or high-strength plastic, etc., to provide the necessary strength and rigidity to support the back and / or waist of the human body. The backrest body 110 can be provided with a filling layer and wrapped by an outer skin. The main function of the filling layer is to provide comfortable support and cushioning, which can be selected from sponge, foam plastic, memory foam, etc. The outer skin serves to protect the filling layer and provide an aesthetic appearance, which can be fabric, leather, artificial leather, etc. The actual needs can be selected, and this is not limited.

[0044] The backrest body 110 can be a single-body structure, i.e., the number of bodies is one, and the backrest body 110 is arranged corresponding to the human body part, which can only provide support for the back of the human body, or only provide support for the waist of the human body, or can provide support for the back and waist of the human body. In addition, the backrest body 110 can also be a multi-body structure, i.e., the number of bodies is more than one, for example, the backrest body 110 is a double-body structure, specifically, the backrest body 110 has a first backrest body and a second backrest body, which are arranged in sequence in the longitudinal direction of the seat. The first backrest body can provide support for the back of the human body, and the second backrest body can provide support for the waist of the human body. Alternatively, the first backrest body and the second backrest body can also be arranged in sequence in the transverse direction of the seat. This is only exemplary and not limiting.

[0045] The backrest body 110 is provided with an opening K, which is located at the side edge of the backrest body 110 in the transverse direction of the backrest (which can also be regarded as the left-right direction of the backrest), and extends towards the opposite side edge. Optionally, the opening K is a strip-shaped opening. The opening K has multiple, i.e., two or more, which can be set according to actual needs, and the extension length of each opening K can be the same or different, which is not limited in the embodiment. As an example, as shown in Figure 1 The left side edge of the backrest body 110 has at least one first opening extending towards the right side edge, and / or the right side edge of the backrest body 110 has at least one second opening extending towards the left side edge. Due to the presence of the opening K, when the user leans on the backrest, the backrest body 110 can adapt to the body curve of the user to adaptively deform to fit the body part of the user and provide sufficient support for the user, adapt to the body shape of different users, or adapt to the change of sitting posture, etc.

[0046] The backrest body 110 has two groups of support positions W, which are arranged in opposite directions in the transverse direction of the backrest body 110 (which can also be regarded as the left-right direction of the backrest) or the longitudinal direction (which can also be regarded as the up-down direction of the backrest). In each group of support positions W, there can be only one support position W, or there can be multiple (i.e., two or more) support positions W. When a group of support positions W includes multiple support positions W, the multiple support positions W can be arranged in a straight line in sequence. In addition, the number of support positions W in the two groups of support positions W can be the same or different, and can be set according to actual needs. As an example, as shown in FIG. 11, the two groups of support positions W are a first group of support positions and a second group of support positions, and the number of support positions W in the first group of support positions is the same as that in the second group of support positions, and the positions of the support positions W in the first group of support positions are symmetric about the center line of the backrest body 110. Figure 1

[0047] In the front-rear direction of the backrest 100, a support member 120 is arranged on the back side of the backrest body 110, and the support member 120 is connected to the two groups of support positions W on the backrest body 110 to support the backrest body 110, so that when a user leans on the backrest 100, the support member 120 cooperates with the backrest body 110 to support the body part of the user. The support member 120 can be one or more (i.e., two or more) to correspond to the connection with the two groups of support positions W. In addition, the support member 120 can be in the form of a support frame, a support frame, etc., which is not limited in the present embodiment. The support positions W can be arranged in the form of support points, and the connection between the support member 120 and the support positions W corresponds to point connection. In addition, the support positions W can be arranged in the form of a support surface. According to the actual structure requirement, the support member 120 and the support position W can be fixedly connected or movably connected (such as rotary connection, sliding connection, etc.), which is not limited in the present embodiment. When the support member 120 and the support position W are fixedly connected, they cannot move relative to each other; when the support member 120 and the support position W are movably connected, they can move relative to each other, and the form of movement is determined according to the form of connection.

[0048] The backrest 100 of the seat according to the technical scheme of the present application comprises a backrest body 110 and a support member 120, and the backrest body 110 can be used to support the back and / or waist of a user. When the leaning angle or posture of the user changes, the backrest body 110 can deform to adapt to the human body curve based on the multiple openings K arranged thereon, thereby adapting to the shape of the human body part. In addition, the support member 120 of the backrest 100 can provide support for the backrest body 110, which can further enhance the fitting effect of the backrest body 110 with the back and / or waist of the human body. In summary, the backrest 100 of the seat of the present application can improve the comfort of the user when using the seat. ​

[0049] In some embodiments, referring to Figure 1 and Figure 3 , the plurality of openings K are divided into two groups, and the two groups of openings K are oppositely arranged along the transverse direction of the back body 110.

[0050] Each group of openings K includes at least one opening K.

[0051] The two groups of openings K can be divided into a first group of openings and a second group of openings, and the first group of openings is located at the left side edge of the back body 110 and the second group of openings is located at the right side edge of the back body 110 in the transverse direction of the back body 110, and the first group of openings is oppositely arranged with the second group of openings. Among them, the first group of openings can include one first opening, or can include a plurality (two or more) of first openings. When the first opening has a plurality, the plurality of first openings are sequentially and spacedly arranged along the longitudinal direction of the back body 110, for example, as shown in Figure 1 , seven first openings are sequentially and spacedly arranged along the longitudinal direction of the back body 110 at the left side edge of the back body 110. The second group of openings can include one second opening, or can include a plurality (two or more) of second openings. When the second opening has a plurality, the plurality of second openings are sequentially and spacedly arranged along the longitudinal direction of the back body 110. For example, as shown in Figure 1 , seven second openings are sequentially and spacedly arranged along the longitudinal direction of the back body 110 at the right side edge of the back body 110. Optionally, the number of the first openings is the same as that of the second openings and the positions of the first openings correspond to those of the second openings.

[0052] In some embodiments, referring to Figure 3 and Figure 4 , the back body 110 includes:

[0053] A plurality of support ribs 111, the plurality of support ribs 111 are spacedly arranged along the longitudinal direction of the back body 110, and the gap between any two adjacent support ribs 111 forms an opening K;

[0054] Among them, the two groups of support positions W are arranged on at least part of the plurality of support ribs 111.

[0055] The support ribs 111 are substantially long strip-shaped or plate-shaped, and can be designed as separate components or integrated with other structures. The support ribs 111 are provided in multiple (two or more), and the multiple support ribs 111 are sequentially and spacedly arranged in the longitudinal direction of the back body 110. The number of the support ribs 111 can be set according to actual needs, for example, eight, and the embodiment is not limited in this regard. In addition, in the transverse direction of the back body 110, the support ribs 111 can be arranged on one side, for example, multiple support ribs 111 are arranged on the left side or the right side of the back body 110; or the support ribs 111 can be arranged on both sides, for example, multiple support ribs 111 are arranged on the left side and the right side of the back body 110. Since each support rib 111 corresponds to a different position of the human body and is designed according to the principle of ergonomics, the shape and size (such as length, width, etc.) of each support rib 111 are different, so as to better fit the body parts of the user and provide personalized support for users of different body types.

[0056] Since the support ribs 111 are arranged at intervals, the gap formed between any two adjacent support ribs 111 can correspond to the opening K. The size of the opening K can be determined by the spacing between the support ribs 111. The support ribs 111 can be connected or not connected, and when the support ribs 111 are not connected, the support ribs 111 can be connected to the support member 120 to establish a structural connection, and the embodiment is not limited in this regard.

[0057] Based on the multiple support ribs 111 included in the back body 110, the two groups of support positions W can be arranged on part of the support ribs 111. For example, the support ribs 111 have eight, and each group of support positions W includes four support positions W, which are sequentially arranged in the longitudinal direction of the back body 110 and distributed on the first, third, fifth, and seventh support ribs 111 from top to bottom in the longitudinal direction of the back body 110. Alternatively, the two groups of support positions W can be arranged on all the support ribs 111. For example, the support ribs 111 have eight, and each group of support positions W includes eight support positions W, which are sequentially arranged in the longitudinal direction of the back body 110 and distributed on the eight support ribs 111.

[0058] When the user leans against the back body 110, if the leaning posture changes, the back body 110 will adaptively deform and have a good deformation effect due to the rib structure design with intervals, thereby providing a better flexible support effect for the user.

[0059] In some embodiments, with reference toFigure 3 When the two groups of support positions W are arranged at intervals in the transverse direction of the back body 110, the two groups of support positions W can be symmetric about the center line of the back body 110;

[0060] Each group of support positions W includes a plurality of support positions W, and each support position W in the plurality of support positions W is arranged on a support rib 111.

[0061] With the transverse direction of the back body 110 as a reference direction, the two groups of support positions W are symmetric about the center line of the back body 110, and the symmetry involved can be basic or approximate symmetry, allowing for a positional difference. That is, the two groups of support positions W are respectively located on the left and right sides of the center line of the back body 110, and the distances of the two groups of support positions W from the center line of the back body 110 are substantially equal. Moreover, the number of support positions W in the two groups of support positions W is the same, and the positions correspond.

[0062] Based on the plurality of support ribs 111 arranged, in each group of support positions W, each support position W in the plurality of support positions W is arranged on a support rib 111. As an example, each group of support positions W includes eight support positions W, and the support ribs 111 are provided with eight support ribs 111. The eight support positions W are correspondingly distributed and arranged on the eight support ribs 111. That is, the support positions W are uniformly dispersed on the plurality of support ribs 111 of the back body 110, the support member 120 is connected with the support positions W, and the support force formed can be uniformly distributed on the back body 110, thereby supporting the body parts of the user in balance.

[0063] In some embodiments, with reference to Figure 3 Any two adjacent support ribs 111 are connected by a connecting portion 112, and in the longitudinal direction of the back body 110, the adjacent connecting portions 112 are arranged at intervals.

[0064] The connecting portion 112 can be integrally formed with the support rib 111, so that the two adjacent support ribs 111 are connected, the connected support ribs 111 form an integral back body 110 frame, and the structural strength and supportability of the back body 110 are improved. Moreover, the connection between the support ribs 111 through the connecting portion 112 enables the pressure to be more uniformly distributed throughout the back range. The connecting portion 112 between the two adjacent support ribs 111 can be one or multiple (two or more), and the multiple connecting portions 112 are arranged at intervals in the transverse direction of the back body 110, which is not limited in the present embodiment.

[0065] In the longitudinal direction of the backrest body 110, the connection portions 112 between the adjacent positions of the support ribs 111 in the upward and downward directions are staggered. For example, taking some of the support ribs 111 as an example, one connection portion 112 is arranged above the support rib 111, and the connection portion 112 can be located on the center line of the backrest body 110; two connection portions 112 are arranged below the support rib 111, and the two connection portions 112 can be located on the left and right sides of the center line of the backrest body 110, so that the adjacent connection portions 112 are staggered. Alternatively, taking some other support ribs 111 as an example, two connection portions 112 are arranged above the support rib 111, and the two connection portions 112 can be located on the left and right sides of the center line of the backrest body 110; one connection portion 112 is arranged below the support rib 111, and the connection portion 112 can be located on the center line of the backrest body 110, so that the adjacent connection portions 112 are staggered. The above is only exemplary and is not limiting. Since the body types and sitting habits of different users are different, the connection positions between the support ribs 111 are staggered, which can better adapt to these differences, can adjust the support according to different parts of the human body and posture, and provide more conformable support.

[0066] In some embodiments, with reference to Figure 1 and Figure 2 The support 120 includes a first support 121, and the first support 121 has two support portions 1211 arranged oppositely, one of the two support portions 1211 is connected with one of the groups of support positions W, and the other is connected with the other group of support positions W. The support 120 is arranged in the structure of the first support 121, and the two support portions 1211 arranged oppositely of the first support 121 are connected with the two groups of support positions W, thereby realizing the connection and support of the backrest body 110. Optionally, the two support portions 1211 are located at opposite ends of the first support 121 and are arranged in the vertical direction of the first support 121, and the first support 121 and the two support portions 1211 arranged thereon form a “H” shaped member. In addition, the support portion 1211 can also be arranged without extension, such as a square, circular or triangular structure. Among them, the support portion 1211 can be directly connected with the support position W of the backrest body 110, or can be connected with the support position W of the backrest body 110 through other intermediate members.

[0067] If the two groups of support positions W are arranged in the transverse direction of the backrest body 110, the first support member 121 is arranged in the transverse direction, one support portion 1211 is arranged at the left side of the backrest body 110 corresponding to one group of support positions W and connected thereto, and the other support portion 1211 is arranged at the right side of the backrest body 110 corresponding to the other group of support positions W and connected thereto. If the two groups of support positions W are arranged in the longitudinal direction of the backrest body 110, the first support member 121 is arranged in the longitudinal direction, one support portion 1211 is arranged at the upper side of the backrest body 110 corresponding to one group of support positions W and connected thereto, and the other support portion 1211 is arranged at the lower side of the backrest body 110 corresponding to the other group of support positions W and connected thereto.

[0068] In addition, the first support member 121 can be arranged in one or multiple (two or more) according to actual needs. When the first support member 121 is arranged in multiple, one support portion 1211 of the multiple first support members 121 corresponds to one group of support positions W and is connected thereto, and the other support portion 1211 of the multiple first support members 121 corresponds to the other group of support positions W and is connected thereto.

[0069] In some embodiments, the support portion 1211 and the support position W are movably connected. The movable connection includes rotary connection, sliding connection, elastic connection, etc., which is not limited in the present embodiment. Since the support portion 1211 and the support position W are movably connected, the backrest body 110 is allowed to move relative to the first support member 121 to adjust according to different user body shapes and / or postures, adapt to the body shape and posture of the human body, and provide support and cushioning.

[0070] In some embodiments, referring to Figure 1 , Figure 2 and Figure 5 , the support member 120 further comprises at least two groups of second support members 122, and the at least two groups of second support members 122 are arranged on the two support portions 1211, respectively.

[0071] Each group of second support members 122 comprises at least one second support member 122, and each second support member 122 is movably connected to the support portion 1211. Each support portion 1211 is movably connected to one group of support positions W corresponding thereto through one group of second support members 122 arranged thereon.

[0072] Specifically, the support 120 comprises at least two groups of second supports 122 arranged at two support portions 1211 of the first support 121 respectively, the second supports 122 are located between the support portions 1211 of the first support 121 and the back body 110, and are movably connected with the support portions 1211 of the first support 121 and the support positions W on the back body 110 respectively, thereby realizing the movably connection between the support portions 1211 of the first support 121 and the support positions W on the back body 110. The form of the movably connection can refer to the foregoing embodiments.

[0073] The connection structure between the second support 122 and the first support 121 can be in the following two forms:

[0074] Firstly, a connecting shaft is arranged on the first support 121, and the second support 122 is connected with the connecting shaft to form a hinged (i.e. rotary connection) relationship with the first support 121, thereby the second support 122 can rotate relative to the first support 121 through the connecting shaft.

[0075] Secondly, the first support 121 is configured with a slide, a slide column is arranged in the slide, and the second support 122 is connected with or integrally formed with the slide to form a rotary connection and a sliding connection with the first support 121 at the same time, thereby the second support 122 can rotate relative to the first support 121 through the slide column, and can also slide relative to the first support 121, so that when the back body 110 moves relative to the first support 121, the position and / or angle of the back body 110 can be changed variously, so that the back body 110 can be more fitted to the human body part and provide sufficient support. The above two structure settings are only exemplary and not restrictive, including but not limited to.

[0076] Each support portion 1211 can be provided with one or more (i.e. two or more) second supports 122, and each second support 122 can correspond to and be connected to one or more (i.e. two or more) support positions W. As an example, each of the two groups of support positions W includes eight support positions W, the first supports 121 are provided with two, and each support portion 1211 of each first support 121 is provided with two second supports 122, and each second support 122 corresponds to and is connected to two support positions W, that is, through two first supports 121 and four second supports 122, the first support 121 is connected to a total of sixteen support positions W in the two groups of support positions W. Through the movable connection provided between the support portion 1211 of the first support 121 and the support position W of the back body 110 by the second support 122, the relative movement between the back body 110 and the first support 121 is more flexible, so that the back body better fits the human body curve and provides more comfortable support.

[0077] In some embodiments, with reference to Figure 4 and Figure 5 , the support position W is provided with a receiving cavity Q, and the second support 122 is provided with a ball connector 1221, which is accommodated in the receiving cavity Q to movably connect the second support 122 with the support position W. Specifically, the second support 122 is accommodated in the receiving cavity Q at the support position W of the back body 110 through the ball connector 1221, and the articulated cooperation between the ball connector 1221 and the receiving cavity Q allows the back body 110 to rotate and / or move in multiple directions relative to the second support 122, which overcomes the limitations of traditional fixed connection, so that the back body 110 can be adjusted to adapt to the change in the user's posture.

[0078] When the user leans against the back 100, the ball connector 1221 can move within the receiving cavity Q. The change in the user's reclining posture causes the ball connector 1221 to move and / or rotate within the receiving cavity Q, so that the back body 110 adjusts the angle and / or position relative to the second support 122 accordingly, so that the back body 110 can adapt to the human body curve when the user reclines, and improve the comfort of the support.

[0079] In some embodiments, the backrest body 110 can be elastically deformable. Specifically, the backrest body 110 can be made of a material capable of elastic deformation, such as plastic. When the backrest body 110 is subjected to an external force, the main body part thereof deforms in shape, and can restore to the original shape or close to the original shape after the external force is removed. When a user leans on the backrest, the backrest body 110 can deform to adapt to the shape of the human body, provide support and cushioning, and reduce the pressure on the body; and when the seat is subjected to an impact in an unexpected situation, the elastic deformation of the backrest body 110 can absorb part of the impact force and reduce the harm to the human body.

[0080] In some embodiments, referring to Figure 1 and Figure 3 Each support rib 111 is formed with a curved surface, which is concave inward in the direction of the human body along the transverse direction of the backrest body 110. The curvature of the curved surface on the support rib 111 can be set according to actual needs, and the curvature of the curved surface on each support rib 111 can be the same or different, which is not limited in the present embodiment. Specifically, the design of the concave curved surface of the support rib 111 can better fit the natural curve of the back and / or waist of the human body, provide good and stronger support for the key parts of the human body, and can uniformly distribute the pressure to a larger area, avoid excessive local pressure, reduce the pressure on the specific parts of the back and / or waist, and improve the comfort; in addition, the backrest can better wrap the human body, increase the contact area between the body and the backrest 100, and thus improve the stability.

[0081] In some embodiments, referring to Figure 6The back body 110 further comprises a first support structure 1121 corresponding to the structure of the back body 110, which is connected to the side of the back body 110 facing the human body. The first support structure 1121 and the back body 110 can be detachably connected, and the connection mode can be, for example, buckle connection, screw connection, etc., including but not limited to. When the user leans on the back 100, the back body 110 contacts the human body through the first support structure 1121 and forms support to the human body. The first support structure 1121 can be a flexible support structure, such as flexible cotton, fabric, sponge, etc., and covers the back body 110, which can deform moderately according to the body shape and weight of the human body, fit the human body part curve, and provide uniform and comfortable support. In addition, the first support structure 1121 is located at the surface or internal key position of the back 100, which can also play a role in protecting other structure layers. For example, the first support structure 1121 can reduce the damage of external impact to the internal hard support structure (such as the back body 110), prolong the service life of the back. The first support structure 1121 can be wrapped by a cover cloth, which not only has a protective effect, but also can improve the appearance. In addition, a frame-shaped / annular cover cloth pressing plate 1123 can also be correspondingly configured, which is arranged on the side of the first support structure 1121 away from the human body, and is correspondingly pressed on the part of the cover cloth turned to the back of the first support structure 1121, to assist the cover cloth in edge covering. The cover cloth pressing plate 1123 can be made of elastic material, which can assist in edge covering without affecting the elasticity of the cover cloth and / or the back.

[0082] In some embodiments, with reference to Figure 6The back body 110 further comprises a second support structure 1122 corresponding to the structure of the back body 110, and the second support structure 1122 is connected between the first support structure 1121 and the back body 110. The first support structure 1121 is mounted on the back body 110 through the second support structure 1122, and the first support structure 1121 and the second support structure 1122 and the second support structure 1122 and the back body 110 are detachably connected in sequence. Specifically, the second support structure 1122 can be connected with the first support structure 1121 by detachable connection with the cloth pressing plate 1123, and the detachable connection includes buckle connection, screw connection, but is not limited thereto. The second support structure 1122 can be a support plate, which is in a sheet shape and can be elastically deformed. The support plate can be provided in a whole piece or in a rib structure as adopted by the back body 110 in the above embodiment, which can be selected according to actual needs. When the support plate is provided in a rib structure, the ribs between the support plate and the back body 110 are staggered, that is, the ribs of the two are spliced with each other, which can shield the cloth edge, avoid the cloth edge from being exposed from the opening K of the back body 110, and improve the appearance.

[0083] In some embodiments, referring to Figure 6 One of the back body 110 and the second support structure 1122 is provided with a plug hole 10, and the other is provided with a plug part 20 matched with the plug hole 10, and the second support structure 1122 is inserted into the plug hole 10 through the plug part 20 to realize detachable connection with the back body 110. The back body 110 and the second support structure 1122 are connected through the plug hole 10 and the plug part 20 to realize detachable connection, which is stable and convenient to disassemble and assemble. The back body 110 can be provided with the plug hole 10, and the second support structure 1122 can be provided with the plug part 20, or the second support structure 1122 can be provided with the plug hole 10, and the back body 110 can be provided with the plug part 20, which is not limited in the embodiment, and can be set according to actual needs. The connection structure of the plug hole 10 and the plug part 20 can be provided in multiple groups, and the multiple groups are arranged at intervals along the circumferential side edge of the back body 110, which can improve the fit between the second support structure 1122 and the back body 110.

[0084] The utility model discloses an embodiment further proposes a seat, the seat includes seat body and the back of the seat as described in the foregoing embodiment, and the back of the seat is connected with the seat body. The specific structure of the back of the seat is referred to the above embodiment, because all the technical solutions of the above all embodiments are adopted in the seat, at least all the technical effects brought by the technical solutions of the above embodiments are possessed, and here is not repeated.

[0085] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation or direct / indirect application in other related technical fields under the concept of the whole present application and the contents of the present application and the drawings are included in the scope of protection of the present application.

Claims

1. A backrest of a seat, characterized in that The backrest body is provided with a plurality of openings, which are located at the side edges of the backrest body along the transverse direction thereof and each extends from the edge of the side edge where it is located towards the other side edge. The backrest body is further provided with two groups of support positions, which are spaced apart along the transverse direction or the longitudinal direction of the backrest body, each group of the support positions comprises at least one support position, and the support member is connected to the two groups of support positions. The support member comprises a first support member having two support portions arranged oppositely, one of the two support portions is connected to one of the two groups of support positions, and the other is connected to the other group of support positions, and the support portions are movably connected to the support positions. The plurality of openings are divided into two groups, and the two groups of openings are arranged oppositely along the transverse direction of the backrest body.

2. The seat back of claim 1, wherein Each group of openings comprises at least one opening. The backrest body comprises:

3. The seat back of claim 1, wherein A plurality of support ribs are spaced apart along the longitudinal direction of the backrest body, and the gap between any two adjacent support ribs forms the opening. The two groups of support positions are arranged on at least part of the support ribs.

4. The backrest of the seat according to claim 3, wherein When the two groups of support positions are spaced apart along the transverse direction of the backrest body, they are symmetric about the center line of the backrest body. Each group of support positions comprises a plurality of support positions, and each support position of the plurality of support positions is arranged on a support rib.

5. The backrest of the seat according to claim 3, wherein Any two adjacent support ribs are connected by a connecting portion, and the adjacent connecting portions are arranged staggered along the longitudinal direction of the backrest body. The support member further comprises at least two groups of second support members, which are arranged on the two support portions respectively.

6. The seat back of claim 1, wherein Each group of second support members comprises at least one second support member, each second support member is movably connected to the support portion, and each support portion is movably connected to a group of support positions corresponding to a group of second support members arranged thereon through the group of second support members. The support position is provided with a receiving cavity, and the second support member is provided with a ball connecting member, which is received in the receiving cavity to movably connect the second support member to the support position.

7. The seat back of claim 6, wherein 8. The backrest of the seat according to claim 3, wherein The backrest body can be elastically deformed; and / or Each support rib is formed with a curved surface, which is concave towards the human body along the transverse direction of the backrest body. The backrest body further comprises a first support structure corresponding to the structure of the backrest body, which is connected to the side of the backrest body facing the human body.

9. The seat back of claim 1, wherein The backrest body further comprises a second support structure corresponding to the structure of the backrest body, which is connected between the first support structure and the backrest body.

10. The seat back of claim 9, wherein ​ 11. The seat back of claim 10, wherein One of the backrest body and the second support structure is provided with a plug hole, and the other is provided with a plug part matched with the plug hole, and the second support structure is plugged into the plug hole through the plug part to achieve detachable connection with the backrest body.

12. A seat, characterized by A seat comprising a seat body and a seat back as claimed in any of claims 1 to 11, the seat back being connected to the seat body.

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