Seat belt webbing

Abstract

The present invention relates to a seat belt webbing (10) for an automobile seat belt system, comprising a woven fabric of warp threads (11) and weft threads (12), wherein the fabric includes a base color in one or more base portions (13). The seat belt webbing comprises at least one stripe of a different color extending parallel to the warp threads. The transition stripe is located at the transition from the base portion to the stripe, and the warp threads of the base portion and the stripe include the base thread fineness. The transition stripe comprises at least two warp threads having a transition thread fineness finer than the base thread fineness.

Description

Technical Field

[0001] The present invention relates to a seat belt webbing for an automobile seat belt system as described in the preamble of claim 1.

Background Art

[0002] The seat belt webbing of a seat belt system may include elements that emphasize colors such as stripes. Such stripes may extend, for example, along the longitudinal extension of the seat belt webbing. The seat belt webbing typically comprises a fabric of warp and weft threads, and the color contrast stripes extend along a longitudinal range parallel to the warp threads.

[0003] However, the color contrast stripes emphasize the type of webbing of the seat belt webbing at the edges of the stripes, and the type of webbing must meet the technical requirements for restraining the occupant. Therefore, such strips often have blurred or jagged edges that adversely affect the desired visual effect of the color contrast strip.

Summary of the Invention

[0004] An object of the present invention is to provide a seat belt webbing for a seat belt system that overcomes the above disadvantages.

[0005] This object is solved by the features of the independent claims. Further, preferred embodiments of the present invention can be found in the dependent claims, the figures, and the accompanying description.

[0006] A seat belt webbing for an automobile seat belt system is proposed, comprising a woven fabric of warp and weft threads, the fabric having a base color in one or more base portions, and the seat belt webbing comprising at least one stripe extending parallel to the warp threads, the stripe having a stripe color different from the base color. A transition stripe is positioned at the transition from the base portion to the stripe, the warp threads of the base portion and the stripe having a base thread fineness, and the transition stripe is proposed to comprise at least two warp threads having a transition thread fineness finer than the base thread fineness.

[0007] A transition stripe with a transition yarn finer than the base yarn finer allows for a finer weave in that area and makes the edges at the transition from the stripe to the base area appear smoother. Optically noticeable steps in the weave at the color transition can be significantly reduced in size. Thus, the weave of the seat belt webbing is refined in a locally limited area, resulting in a visually improved image of the stripe relative to one or more base areas. Thus, a rough zigzag pattern at the edges of the stripe can be avoided. The weave properties of the seat belt webbing are not affected by the transition stripe. The edges can be visually improved by using several warp threads with a finer yarn finer than the base yarn finer in the transition stripe. Preferably, all warp threads in the transition stripe include a transition yarn finer.

[0008] Preferably, the stripe is located in the center of the seat belt webbing, resulting in two symmetrical base portions on either side of the stripe. For example, if the stripe extends to the edge of the seat belt webbing, only one base portion may be adjacent to the stripe, in which case the seat belt webbing will have only one transition stripe.

[0009] Preferably, the seat belt webbing has stripes. In alternative embodiments, the seat belt webbing has two, three, four, or more stripes.

[0010] The base of the seatbelt webbing is typically black, but other colors are also available.

[0011] In a further developmental form, it is proposed that the transition yarn fineness be at least 40%, preferably 50%, finer than the base yarn fineness. This allows the transition stripe to sufficiently smooth the edges of the stripe.

[0012] Preferably, the transition yarn fineness is 550 dtex. This refines the visual appearance of the transition stripe to such an extent that the transition from the stripe to the base portion does not appear zigzag to the observer or occupant. More preferably, the base yarn fineness is 1100 dtex.

[0013] Preferably, the weft threads of the seat belt webbing have a fineness equal to the base thread fineness, preferably 1100 dtex.

[0014] In a further developmental form, it is proposed that one or more transition stripes each contain four warp threads. This allows for a particularly smooth transition from the stripe to the base section.

[0015] Preferably, a portion of the warp threads in each transition stripe contains the base color, and a portion of the warp threads in each transition stripe contains the stripe color. Thus, the transition from the stripe color to the base color occurs within the transition stripe, which contains threads of a finer diameter than the stripe and the base portion.

[0016] In a particularly advantageous embodiment, two warp threads of each transition stripe contain the base color, and two warp threads of each transition stripe contain the stripe color. Thus, the stripes can have particularly smooth edges, which is particularly advantageous for the visual appearance of the stripes on the seat belt webbing.

[0017] Preferably, the warp threads of the transition stripe adjacent to the stripe have the stripe color, and the warp threads of the transition stripe adjacent to the base portion have the base color.

[0018] In advantageous embodiments, the woven fabric of the seat belt webbing includes a 2 / 2 twill weave. [Brief explanation of the drawing]

[0019] The present invention will be described below with reference to preferred embodiments, with regard to the attached figures.

[0020] As a result, [Figure 1] Shows seat belt webbing with stripes, [Figure 2] This diagram shows a detailed view of the transition stripe between the seatbelt webbing stripe and the base portion. [Modes for carrying out the invention]

[0021] Figure 1 shows a schematic diagram of an embodiment of a seat belt webbing 10 for an automobile seat belt system. In this advantageous embodiment, a strip 14 is positioned in the center of the seat belt webbing 10, parallel to its edges. The stripe 14 includes a stripe color, for example, red, white, or blue. The base portions 13 on both sides of the stripe 14 include a base color, for example, black.

[0022] The seat belt webbing 10 comprises a woven fabric of warp threads 11 and weft threads 12 (see also Figure 2), with the stripe 14 extending parallel to the warp threads 11. The stripe 14 and base portion 13 include a base yarn fineness of the warp threads 11, for example, 1100 dtex.

[0023] The transitions from the stripe 14 having the stripe color to the base portion 13 having the base color are each located within the transition stripe 15 of the woven fabric of the seat belt webbing 10. The warp threads 11 of the transition stripe 15 have a remarkably fine fineness. This transition thread fineness of the transition stripe 15 is, for example, 550 dtex, and therefore, in this advantageous embodiment, the warp threads 11 of the transition stripe 15 are half as fine as the warp threads 11 of the base portion 13 and the stripe 14.

[0024] Figure 2 shows in detail the woven fabric of the seat belt webbing 10 at the transition from the stripe 14 to the base portion 13, which has a transition stripe 15. On the right side of Figure 2, the stripe 14 is arranged with warp threads 11 of the stripe color. On the left side, the warp threads 11 of the base portion 13 are arranged with the base color. In the transition stripe 15 arranged between them, the warp threads 11 having the transition thread fineness include warp threads 11 that are significantly finer, for example, half fine, i.e., warp threads 11 with half the weight per unit length.

[0025] In this advantageous embodiment, the transition stripe 15 comprises four warp threads 11 having a transition yarn fineness, where the two warp threads 11 on the left side of Figure 2, facing the base portion 13, contain the base color; and the two warp threads 11 on the right side of the figure, facing the stripe 14, contain the stripe color of the stripe 14. Thus, the color transition from the base color to the stripe color is centered among the four warp threads 11 of the transition stripe 15, thereby the transition is produced by a transition yarn fineness with a relatively smooth edge, improving the visual appearance without significantly affecting the mechanical and tactile properties of the seat belt webbing 10. In this advantageous embodiment, the weft threads 12 contain the base yarn count of the warp threads 11 of the stripe 14 and the base portion 13, for example, 1100 dtex.

Claims

1. A seat belt webbing (10) for an automobile seat belt system, comprising a woven fabric of warp threads (11) and weft threads (12), - The woven fabric includes a base color in one or more base portions (13), - The seat belt webbing (10) extends parallel to the warp threads (11) and comprises at least one stripe (14) having a stripe color different from the base color. - The transition stripe (15) is characterized in that it is arranged in one or more transition sections from the base portion (13) to one or more of the stripes (14), - The warp threads (11) of the base portion (13) and the stripe (14) include the base thread fineness, - The seat belt webbing (10) comprises one or more transition stripes (15) having at least two warp threads (11) with a transition thread fineness finer than the base thread fineness.

2. The seat belt webbing (10) according to claim 1, characterized in that the transition yarn fineness is at least 40% finer than the base yarn fineness.

3. The seat belt webbing (10) according to any one of claims 1 to 2, characterized in that the transfer yarn fineness is 550 dtex.

4. The seat belt webbing (10) according to any one of claims 1 to 3, characterized in that the base yarn fineness is 1100 dtex.

5. The seat belt webbing (10) according to any one of claims 1 to 4, characterized in that one or more of the transition stripes (15) each contain four warp threads (11).

6. The seat belt webbing (10) according to any one of claims 1 to 5, characterized in that a portion of the warp threads (11) of each transition stripe (15) contains the base color, and a portion of the warp threads (11) of each transition stripe (15) contains the stripe color.

7. The seat belt webbing (10) according to claim 6, characterized in that two warp threads (11) of each transition stripe (15) include the base color, and two warp threads (11) of each transition stripe (15) include the stripe color.

8. The seat belt webbing (10) according to claim 6 or 7, characterized in that the warp threads (11) of the transition stripe (15) having the stripe color are adjacent to the stripe (14), and the warp threads (11) of the transition stripe (15) having the base color are adjacent to the base portion (13).

9. The seat belt webbing (10) according to any one of claims 1 to 8, characterized in that the woven fabric of the seat belt webbing (10) includes a 2 / 2 twill weave.

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