Wrapping piece double-suture structure

Abstract

The utility model discloses a cladding piece double-seam structure which comprises a vehicle body framework and a cladding layer, the vehicle body framework is provided with a framework groove used for positioning, the cladding layer is provided with a skin seam splicing portion, and the skin overlapping portion of the skin seam splicing portion is opposite to the framework groove in position. The double-stitch structure comprises a skin stitch splicing part and a fixing piece, the skin stitch splicing part is provided with decorative stitches, the double-stitch structure further comprises the fixing piece, the fixing piece is located between the wrapping layer and the automobile body framework, and the fixing piece and the wrapping layer are fixed. According to the utility model, the fixing sheet is arranged, and the fixing sheet and the skin are fixed together at the decorative stitches, so that the problem that the stitches are wavy during double-stitch coating is effectively solved, an alignment tool is omitted, the development cost is reduced, the coating difficulty of a coating piece is reduced, the quality of a single piece is improved, the production takt is accelerated, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile covering, and relates to a double-stitch structure of a covering part. Background Art

[0002] With the improvement of people's living standards, as an important means of transportation for people to travel, the interior of automobiles is increasingly valued. Among them, the automobile interior covered with genuine leather can not only improve the comfort of the vehicle, but also enhance the grade and value, so it is favored. Part of the appearance of the genuine leather covering is reflected in the interior stitches of the automobile. The interior stitches of the automobile are used for the splicing of two pieces of leather fabrics in the automobile interior, and the main functions are to sew the leather materials and for decoration and beautification. The initial interior stitches were all made by pure manual manufacturing process, which was famous for high-end quality and expensive manufacturing cost. With the rapid development of industry, the interior stitch process suitable for large-scale manufacturing came into being.

[0003] So far, the stitch technology has evolved into two major categories: real stitches and false stitches. As the name implies, real stitches are to splice two covering parts by stitches through a machine. Among real stitches, the most widely used covering part splicing method is double stitches. Double stitches have a good decorative effect, improve the internal quality of the automobile, and meet the daily pursuit of users.

[0004] As Figure 1 shown, the traditional design scheme of double stitches is to sew two pieces of epidermis into one piece at 4 places, then add double stitches at the position shown as 5, and then insert the seam into the skeleton groove 3 for positioning. Using this method will cause problems that the epidermis cannot be fixed during the covering process, and the stretching at each place is inconsistent, resulting in wavy stitches. Content of the Utility Model

[0005] Purpose of the utility model: The purpose of the utility model is to provide a double-stitch structure of a covering part, which solves the problems that the epidermis cannot be fixed during the double-stitch covering process, and the stretching at each place is inconsistent, resulting in wavy stitches.

[0006] Technical solution: A double-stitch structure of a covering part of the utility model includes a vehicle body skeleton and a covering layer. A skeleton groove for positioning is opened on the vehicle body skeleton. The covering layer is provided with an epidermis stitch splicing part. The overlapping part of the epidermis of the epidermis stitch splicing part is opposite to the position of the skeleton groove. The epidermis stitch splicing part is provided with decorative stitches. The double-stitch structure further includes a fixing piece. The fixing piece is located between the covering layer and the vehicle body skeleton, and the fixing piece is fixed to the covering layer.

[0007] Further, the fixing piece is fixed to the covering layer through the decorative stitches.

[0008] Further, the fixing piece is provided with a bending part, and the bending part is clamped in the skeleton groove.

[0009] Furthermore, the epidermal overlapping part of the epidermal suture splicing part is embedded in the bent part of the fixing piece.

[0010] Furthermore, the stretchability of the fixing piece is less than that of the covering layer material.

[0011] Furthermore, the fixing piece is an extrusion sheet.

[0012] Furthermore, the covering layer is made of genuine leather.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following advantages: 1. By setting the fixing piece, the fixing piece and the epidermis are fixed together at the decorative suture, effectively solving the problem of the wavy suture during double-suture covering, eliminating the need for a wire alignment tooling, and reducing the development cost;

[0014] 2. The utility model reduces the covering difficulty of the covering part, improves the single-piece quality, speeds up the production rhythm, and reduces the production cost. Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of the traditional scheme.

[0016] Figure 2 It is a structural schematic diagram of the utility model. Detailed Embodiment

[0017] The technical solution of the utility model will be further described below with reference to the drawings.

[0018] As Figure 2 shown, the double-suture structure of the covering part in this embodiment includes a vehicle body skeleton 1 and a covering layer 2. A skeleton groove 3 for positioning is provided on the vehicle body skeleton 1. The covering layer 2 is provided with an epidermal suture splicing part. The epidermal overlapping part of the epidermal suture splicing part is opposite to the position of the skeleton groove 3. In a specific embodiment, the covering layer 2 is formed by splicing two pieces of epidermis 21 at 4 in the figure through sutures. The epidermal overlapping part generated by the splicing and sewing is arranged in the skeleton groove 3. The epidermal suture splicing part is provided with decorative sutures 5. The double-suture structure further includes a fixing piece 6. The fixing piece 6 is located between the covering layer 2 and the vehicle body skeleton 1. The fixing piece 6 is fixed to the covering layer 2. In a specific embodiment, the decorative sutures 5 are arranged on both sides of the splicing part 4. The distances between the two decorative sutures 5 and the splicing part 4 are equal, forming a double-suture structure. The fixing piece 6 and the covering layer 2 are directly fixed together through the decorative sutures 5, which can save processing steps and time, or can also be fixed together by pasting.

[0019] In this embodiment, the fixing piece 6 is provided with a bending part 61. The bending part 61 is clamped in the 3-skeleton groove, and the overlapping part of the epidermis of the epidermis suture splicing part is embedded in the bending part 61. After the fixing piece 6 is fixed to the covering layer 2, they are then embedded together into the skeleton groove 3 of the vehicle body skeleton 1. In a specific embodiment, the stretchability of the fixing piece 6 is less than that of the epidermis 21, ensuring that the decorative suture 5 will not deform due to uneven force during stretching during covering, thus avoiding the problem of unequal spacing and ensuring the fixed position of the double suture 5.

[0020] In a specific embodiment, the epidermis 21 is made of genuine leather, which can better improve the comfort and grade of the interior trim, and the fixing piece 6 is made of an extruded plastic board.

[0021] Next, the double-suture structure of the covering part of the present utility model will be further demonstrated in combination with a specific preparation method: The preparation process includes the following steps: First, two pieces of epidermis 21 are spliced and sutured at 4 to form the covering layer 2; then the extruded plastic sheet 6 is placed, and the epidermis 21 and the extruded plastic sheet 6 are fixed together with the decorative suture 5 at the splicing end of the epidermis 21; finally, the above-mentioned epidermis 21 together with the extruded plastic sheet 6 is embedded into the vehicle body skeleton 1 through the skeleton groove 3. Ensure the fixed position of the double suture, and the epidermis at the suture position cannot move during stretching, thus ensuring the parallelism of the double suture. The problem of wavy sutures during double-suture covering can be solved without a wire alignment tooling, which not only reduces the development cost, but also reduces the covering difficulty of the covering part, improves the single-piece quality, speeds up the production beat, and thus reduces the production cost.

Claims

1. A double-sewing structure of a covering part, comprising a body frame and a covering layer, wherein the body frame is provided with a frame groove for positioning, the covering layer is provided with a skin seam splicing part, the skin overlapping part of the skin seam splicing part is opposite to the frame groove, and the skin seam splicing part is provided with decorative seams, characterized in that: The double-seam structure further includes a fixing plate, which is located between the covering layer and the vehicle body frame and is fixed to the covering layer.

2. The double-sewing structure of the covering member according to claim 1, characterized in that: The fixing plate and the covering layer are fixed by the decorative stitching.

3. The double-sewing structure of the covering member according to claim 1, characterized in that: The fixing sheet is provided with a bending portion, and the bending portion is clamped in the frame groove.

4. The double-sewing structure of the covering member according to claim 3, characterized in that: The skin overlapping portion of the skin suture splicing portion is embedded in the bent portion of the fixing plate.

5. The double-sewing structure of the covering member according to claim 1, characterized in that: The stretchability of the fixing sheet is less than the stretchability of the covering layer material.

6. The double-sewn structure of the covering according to any one of claims 1 to 5, characterized in that: The fixing sheet is an extruded sheet.

7. The double-sewn structure of the covering according to any one of claims 1 to 5, characterized in that: The covering layer is made of genuine leather.

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