Automobile seat backrest structure

Abstract

The utility model discloses an automobile seat backrest structure, which belongs to the technical field of automobile seats and comprises a backrest framework assembly, backrest foam, a backrest protective surface and a C-shaped ring, the backrest framework assembly is enclosed by a first connecting plate, a second connecting plate, a first side plate and a second side plate, and steel wires are respectively welded on the first side plate and the second side plate. A plurality of through holes are formed in the backrest foam, the steel wire is fixed on the through holes through C-shaped rings, a tensioning strip is arranged on the backrest protective surface, the tensioning strip is fixed on the through holes, a plurality of convex structures are arranged on the steel wire, the through holes correspond to the convex structures, and the convex structures are fixed on the through holes through the C-shaped rings; according to the utility model, on the basis of providing functions of positioning, safety, comfort and the like, additional functions of ventilation, heating, massage, waist support and the like are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seats, in particular to a backrest structure of an automobile seat. Background Art

[0002] Patent No. CN117755176A discloses a front-row backrest core component skeleton platform, in which the two ends of the first crossbeam are fixedly connected to the first side panel and the second side panel respectively, and the two ends of the second crossbeam are fixedly connected to the first side panel and the second side panel respectively. The skeleton structure is simple and versatile, and can be designed and developed as a skeleton platform and shared by multiple products, saving man-hours and development. However, since there is no structure for hanging the protective surface on the skeleton, the protective surface can only be hung on the embedded steel wire of the foam, which makes it easy to encounter common problems in current seat development: for example, due to the arrangement of ventilation ducts or the occupation of massage air bags, the foam core is thin, the depth of the embedded steel wire is insufficient, resulting in poor appearance, or the steel wire pull-out force is unqualified, and at the same time, on the backrest equipped with a pneumatic lumbar support, the side wings often flash outward, causing interference with the auxiliary instrument panel, etc.

[0003] Due to the addition of additional functions such as ventilation, heating, and massage, the foam grooves are too shallow, which not only makes the groove depression effect of the finished seat not obvious, but also often makes it difficult to meet the pull-out force requirements of the steel wire embedded in the foam. In the traditional face guard hanging method (the face guard is hung on the steel wire embedded in the foam), during the airbag explosion test, the steel wire sometimes falls out after the test, affecting the test approval. In the traditional face guard hanging method, when the pneumatic lumbar support is lifted (the ejection amount: about 40mm for a single lumbar support and about 30mm for the entire chair), the seat core drives the side wings forward, causing the side wings of the backrest to flash outward beyond the standard, which ultimately causes the backrest to interfere with the auxiliary instrument panel and customer dissatisfaction. Utility Model Content

[0004] In view of the above problems, the utility model provides a car seat back structure, including a back frame assembly, back foam, back cover and C-shaped ring, the back frame assembly is surrounded by a first connecting plate, a second connecting plate, a first side plate and a second side plate, steel wires are respectively welded on the first side plate and the second side plate, a plurality of through holes are provided on the back foam, the steel wires are fixed on the through holes through C-shaped rings, a tension strip is provided on the back cover, the tension strip is fixed on the through holes, a plurality of protrusion structures are provided on the steel wire, the through holes correspond to the protrusion structures, and the protrusion structures are fixed on the through holes through C-shaped rings; the utility model enables the seat to provide additional functions such as ventilation, heating, massage, lumbar support, etc. on the basis of providing functions such as positioning, safety and comfort.

[0005] The technical scheme of the utility model is as follows: a car seat back structure, comprising: a back frame assembly, a back foam, a back cover and a C-shaped ring, the back frame assembly is surrounded by a first connecting plate, a second connecting plate, a first side plate and a second side plate, steel wires are respectively welded on the first side plate and the second side plate, a plurality of through holes are provided on the back foam, the steel wires are fixed on the through holes through the C-shaped ring, a tension strip is provided on the back cover, and the tension strip is fixed on the through hole.

[0006] Furthermore, a plurality of protrusion structures are provided on the steel wire, the through holes correspond to the protrusion structures, and the protrusion structures are fixed on the through holes via C-shaped rings.

[0007] Furthermore, there are four or more protruding structures.

[0008] Furthermore, the diameter of the steel wire is 4.5-5 mm.

[0009] The beneficial effects of the utility model are:

[0010] The utility model enables the seat to provide additional functions such as ventilation, heating, massage, lumbar support, etc. on the basis of providing functions such as positioning, safety and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the backrest frame assembly of the utility model.

[0012] Figure 2 It is a schematic diagram of the steel wire of the utility model.

[0013] Figure 3 This is a schematic diagram of the backrest foam of the utility model.

[0014] Figure 4 for Figure 3 Middle AA cross section.

[0015] Figure 5 for Figure 3 Middle BB cross section.

[0016] Figure 6 It is a front view of the utility model.

[0017] In the figure:

[0018] 1 back frame assembly, 2 backrest foam, 3 backrest cover, 4 C-shaped ring, 101 first connecting plate, 102 second connecting plate, 103 first side plate, 104 second side plate, 105 steel wire, 106 protruding structure, 201 through hole, 301 tension strip. DETAILED DESCRIPTION

[0019] It should be noted that in the description of the present invention, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; the connection can be a mechanical connection or an electrical connection; the connection can be a direct connection or an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] A car seat backrest structure comprises a backrest frame assembly 1, a backrest foam 2, a backrest cover 3 and a C-shaped ring 4.

[0022] The backrest frame assembly 1 is surrounded by a first connecting plate 101 , a second connecting plate 102 , a first side plate 103 and a second side plate 104 . Steel wires 105 are welded to the first side plate 103 and the second side plate 104 , respectively. A plurality of protrusion structures 106 are provided on the steel wires 105 .

[0023] The backrest foam 2 is provided with a through hole 201 at a position corresponding to the steel wire protrusion structure 106 , and the protrusion structure 106 is fixed on the through hole 201 via a C-shaped ring 4 .

[0024] A tension strip 301 is provided on the backrest cover 3 , and the tension strip 301 is fixed on the through hole 201 .

[0025] The diameter of the steel wire 105 is 4.5-5 mm.

[0026] φ4.5 / φ5.0 special-shaped steel wires are welded on the first side panel and the second side panel respectively, and the two steel wires are symmetrical about the center of the seat; through holes are provided in the backrest foam groove at specific positions; when assembling the backrest cover, the backrest cover and the steel wires are assembled together at the backrest foam through holes through the C-shaped ring.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any modification, equivalent replacement and improvement made by any technician familiar with the technical field within the technical scope disclosed by the utility model and within the spirit and principle of the utility model shall be covered by the protection scope of the utility model. At the same time, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A car seat back structure, characterized in that: include: A backrest frame assembly, backrest foam, backrest cover and C-shaped ring. The backrest frame assembly is surrounded by a first connecting plate, a second connecting plate, a first side plate and a second side plate. Steel wires are respectively welded on the first side plate and the second side plate. A plurality of through holes are provided on the backrest foam. The steel wires are fixed on the through holes through C-shaped rings. A tension strip is provided on the backrest cover and fixed on the through holes.

2. The automobile seat back structure according to claim 1, characterized in that: A plurality of protruding structures are arranged on the steel wire, the through holes correspond to the protruding structures, and the protruding structures are fixed on the through holes through C-shaped rings.

3. The automobile seat back structure according to claim 2, characterized in that: There are four or more raised structures.

4. The automobile seat back structure according to any one of claims 1 to 3, characterized in that: The diameter of the steel wire is 4.5-5mm.

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