Seat belt

Abstract

Provided is a seat belt (1), comprising webbing (10) and a tongue (20). The tongue comprises a base body (21) and a tongue piece (22) which are connected at a predetermined angle relative to each other; the base body has open slots; the webbing comprises first webbing (11) and second webbing (12); the open slots comprise a first open slot (21A) and a second open slot (21B); and after passing through the first open slot and the second open slot respectively, the first webbing and the second webbing extend in different directions. The base body comprises a first base portion (211) and a second base portion (212), the first base portion being fixed to the tongue piece, the second base portion being fixed to both the first webbing and the second webbing, the first base portion and the second base portion being connected to a first predetermined position and a second predetermined position of an adapter portion (213), and the first predetermined position and the second predetermined position being spaced apart by a predetermined distance. The seat belt is capable of independently applying restraining forces at the shoulders and pelvis of an occupant.

Description

seat belt Technical Field

[0001] This invention relates to safety devices for vehicles, particularly seat belts. Background Technology

[0002] As one of the most commonly used safety devices, seat belts are installed in vehicles to restrain occupants during a collision and to prevent occupants from secondary collisions with the steering wheel and dashboard, or to prevent occupants from being ejected from the vehicle and suffering injury or death.

[0003] The seat belt includes sections for restraining the pelvis and sections for restraining the shoulders, and can pass freely through a common latch and then be secured to the buckle via the latch; since these two sections are usually set as different parts of the same webbing, the restraining forces applied by the seat belt to the occupant's pelvis and shoulders will affect each other.

[0004] Therefore, a seat belt that can independently apply restraint to the occupant's shoulders and pelvis is desired. Summary of the Invention

[0005] The purpose of this invention is to provide a seat belt that can independently apply restraint forces to the shoulders and pelvis of the occupant.

[0006] The present invention provides a seat belt comprising a webbing and a latch, the latch comprising a base and a tongue piece connected relative to each other at a predetermined angle, the base having an opening slot.

[0007] in,

[0008] The webbing includes a first webbing and a second webbing, and the opening slot includes a first opening slot and a second opening slot. The first webbing and the second webbing respectively pass through the first opening slot and the second opening slot and then extend in different directions.

[0009] The base includes a first base portion and a second base portion. The first base portion is fixed together with the tongue, and the second base portion is fixed together with both the first webbing and the second webbing. The first base portion and the second base portion are connected to a first predetermined position and a second predetermined position of the adapter, wherein the first predetermined position and the second predetermined position are spaced apart by a predetermined distance.

[0010] According to an embodiment of the present invention, the first base portion is configured as a plate-like member, and the first predetermined position and the second predetermined position are spaced apart by a predetermined distance in the thickness direction of the first base portion.

[0011] According to an embodiment of the present invention, the second base portion is constructed as an elongated member, provided with a pair of said transition portions, and both ends of the second base portion are respectively fixed to the pair of said transition portions; and

[0012] The first base portion includes a first bent portion and a second bent portion that bend relative to each other. The tongue and the second bent portion are respectively positioned on opposite sides of the first bent portion. The other opposite sides of the first bent portion are respectively fixed to a pair of the transition portions. The second bent portion is provided with the first opening groove.

[0013] According to an embodiment of the present invention, a portion of one of the first webbing and the second webbing forms an annular member surrounding the second base portion, and the ends of the first webbing and the second webbing are both located outside the annular member and fixed together.

[0014] According to an embodiment of the present invention, the base further includes a cover that mates with the first base portion, the first base portion and the cover together defining the second opening groove, and the cover and the first base portion defining an inner cavity for receiving the ends of both the first webbing and the second webbing.

[0015] According to an embodiment of the present invention, a first mating part is provided on the first base portion, and a second mating part is provided on the cover portion that mates with the first mating part.

[0016] According to an embodiment of the present invention, the adapter portion is provided with a through hole for the second base portion to pass through, and the adapter portion is accommodated in the inner cavity.

[0017] According to an embodiment of the present invention, the adapter portion is integrally formed with the first base portion and extends perpendicular to the plane in which the first base portion is located.

[0018] According to an embodiment of the present invention, the first opening groove and the second opening groove are respectively located on opposite sides of the second base portion.

[0019] According to an embodiment of the present invention, the first webbing is configured as a shoulder webbing and includes the annular member, the second webbing surrounds a portion of the second base portion, and the ends of the first webbing and the second webbing are fixed together at intervals. Attached Figure Description

[0020] The features, advantages, and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. In the drawings, the same symbols denote the same elements, wherein:

[0021] Figures 1(a) and 1(b) schematically illustrate the seat belt according to an embodiment of the present invention.

[0022] Figure 2 schematically illustrates the various components of a seat belt according to an embodiment of the present invention.

[0023] Figure 3 schematically illustrates the various components of a seat belt according to another embodiment of the present invention. Detailed Implementation

[0024] The following describes specific embodiments of the seat belt according to the present invention in conjunction with the accompanying drawings. The detailed description and drawings below are provided to illustrate the principles of the invention. The invention is not limited to the described preferred embodiments; the various embodiments described can be used individually or in any combination. The scope of protection of the invention is defined by the claims.

[0025] Furthermore, spatially related terms (such as "up," "down," "left," and "right") are used to describe the relative positional relationship between elements shown in the accompanying drawings and other elements. Therefore, spatially related terms can be applied to directions different from those shown in the accompanying drawings. Clearly, while all these spatially related terms refer to the directions shown in the accompanying drawings for ease of explanation, those skilled in the art will understand that directions different from those shown in the accompanying drawings can be used.

[0026] Figures 1(a) and 1(b) schematically illustrate a seat belt according to an embodiment of the present invention. Figure 2 schematically illustrates various components of a seat belt according to an embodiment of the present invention. The seat belt according to an embodiment of the present invention will be described below with reference to Figures 1(a), 1(b), and 2.

[0027] As shown in Figures 1(a), 1(b), and 2, the present invention provides a seat belt 1 comprising a webbing 10 and a latch 20, wherein the webbing 10 and the latch 20 are interconnected. Specifically, the latch 20 comprises a base 21 and a tongue 22 connected relative to each other at a predetermined angle, the base 21 comprising an opening groove. In the seat belt 1 of the present invention, the opening groove comprises a first opening groove 21A and a second opening groove 21B, and the webbing 10 comprises a first webbing 11 and a second webbing 12, the first webbing 11 extending through the first opening groove 21A in a first direction, and the second webbing 12 extending through the second opening groove 21B in a second direction, wherein the first direction is different from the second direction. As is known, the tongue 22 is to be inserted into a buckle fixed to the seat, thereby restraining the occupant on the seat by the webbing 10.

[0028] Typically, seatbelt webbing includes shoulder webbing for restraining the occupant's shoulders and leg webbing for restraining the occupant's pelvis. The latch can be considered as located at the boundary between the shoulder and leg webbing. The shoulder webbing extends from the occupant's shoulder to the opposite side and then to the buckle (also located on the opposite side), covering the occupant's chest and abdomen. The leg webbing extends from one side of the occupant's pelvis to the opposite side and then to the buckle, covering the lower abdomen. In existing designs, the shoulder and leg webbing are generally formed from a single continuous webbing, and the latch can slide freely along the length of the webbing to accommodate occupants of different body types. The latch typically includes a stiffer body and a softer cover over the body. The body is formed in a generally T-shaped frame, and the cover is typically a resin material component that covers the latch's grooved base. The width of the opening slot is greater than the width of the shoulder webbing and the leg webbing, and the height of the opening slot is greater than the height of the webbing, so as to allow the webbing to slide freely.

[0029] Referring again to Figures 1(a) and 1(b). As described above, in the seat belt 1 of the present invention, the webbing 10 includes a first webbing 11 and a second webbing 12, which are used to protect different body parts of the occupant. For example, the first webbing 11 is used as a shoulder webbing, and the second webbing 12 is used as a leg webbing. Therefore, the first webbing 11 and the second webbing 12 extend in different directions after passing through the first opening slot 21A and the second opening slot 21B, respectively.

[0030] As shown in Figure 2, the base 21 includes a first base portion 211 and a second base portion 212. The first base portion 211 and the second base portion 212 are two separate components that are later connected together, as will be described in detail later. The first base portion 211 is fixed together with the tongue 22, and, as shown in Figures 1(a) and 1(b), the second base portion 212 is fixed together with both the first webbing 11 and the second webbing 12. Furthermore, in order to connect the first base portion 211 and the second base portion 212 together, a connecting portion 213 is provided. The first base portion 211 and the second base portion 212 are connected to a first predetermined position and a second predetermined position of the connecting portion 213, wherein the first predetermined position and the second predetermined position are spaced apart by a predetermined distance, thereby connecting the first base portion 211 and the second base portion 212 at different positions of the connecting portion 213.

[0031] According to an embodiment of the present invention, the first base portion 211 can be constructed as a plate-like member, and the first base portion 211 can be integrally formed with the latch 22. The second base portion 212 can be constructed as an elongated member, for which a pair of transition portions 213 are provided, and the two ends of the second base portion 212 are respectively fixed to the pair of transition portions 213. The first base portion 211 includes a first bent portion 2111 and a second bent portion 2112 bent relative to each other, and a first opening groove 21A is provided on the second bent portion 2112. The tongue 22 and the second bent portion 2112 are respectively positioned on opposite sides of the first bent portion 2111, which are the upper and lower sides of the first bent portion 2111 shown in FIG. 2, that is, the second bent portion 2112 is positioned on the upper side of the first bent portion 2111, and the tongue 22 is positioned on the lower side of the first bent portion 2111. Furthermore, the other two opposite sides of the first bend 2111 are respectively fixed to a pair of transition portions 213, that is, in Figure 2, a transition portion 213 is fixed to the left and right sides of the first bend 2111. In other words, the first predetermined position and the second predetermined position are spaced apart by a predetermined distance in the thickness direction of the first base portion 211, which makes the first base portion 211 and the second base portion 212 spaced apart when the first base portion 211 and the second base portion 212 are connected to the transition portion 213. Specifically, both the first bend 2111 and the second bend 2112 of the first base portion 211 are spaced apart from the second base portion 212. It should be noted that the first base portion 211 and the second base portion 212 are set to be spaced apart from each other, so that a space is reserved between the first base portion 211 and the second base portion 212 for accommodating the first webbing 11 and the second webbing 12 when they are fixed to the second base portion 212.

[0032] It is understood that in the seat belt of the present invention, the second base portion is fixed together with both the first webbing and the second webbing; in other words, the first webbing and the second webbing cannot slide relative to the second base portion. Simultaneously, the first base portion and the second base portion are connected to a first predetermined position and a second predetermined position of the adapter, and the first predetermined position and the second predetermined position are spaced apart by a predetermined distance. That is, the first base portion and the second base portion are separate components, which allows the first base portion and the second base portion to have different designs. For example, the second base portion can be configured to have greater strength than the first base portion to improve the connection strength between the base portion and the first webbing and the second webbing.

[0033] As an embodiment of the present invention, as shown in FIG2, the adapter portion 213 can be integrally formed with the first base portion 211 and extend perpendicular to the plane where the first base portion 211 is located. Thus, the adapter portion 213, together with the first and second bend portions of the first base portion, constitute a semi-enclosed space with three sidewalls, in which the second base portion 212 is positioned. To transform this semi-enclosed space into a more enclosed space with an inner cavity, the base 21 also includes a cover 214 that cooperates with the first base portion 211. As shown in FIG1(b) and FIG2, the first base portion 211 and the cover 214 jointly define the aforementioned second opening groove 21B, and the cover 214 and the first base portion 211 define an inner cavity for accommodating the ends of both the first webbing 11 and the second webbing 12. It should be noted that the ends of the first webbing 11 and the second webbing 12 accommodated in this inner cavity are the free ends of the webbing, and these free ends are fixed to the second base portion 212. Accordingly, in order to connect the first base portion 211 and the cover 214, the first base portion 211 is provided with a first mating portion 2111A, and the cover 214 is provided with a second mating portion 214A that mates with the first mating portion 2111A. In one example, the first mating portion 2111A is constructed as a snap-fit ​​portion, and the second mating portion 214A is constructed as a slot portion, so that the first base portion 211 and the cover 214 are connected together by a snap-fit ​​connection. It can be understood that in the seat belt of the present invention, the first base portion and the cover together form an inner cavity that accommodates the ends of the first webbing and the second webbing that are connected to the base, so as to cover the ends of both the first webbing and the second webbing and the fixing portion (e.g., the stitching portion) that fixes the webbing to the second base portion, thereby improving the external aesthetics of the latch.

[0034] In an embodiment of the present invention, the first opening groove 21A and the second opening groove 21B are located on opposite sides of the second base portion 212, i.e., the upper side and the lower side in the figure. It can be understood that this symmetrical arrangement of the first opening groove 21A and the second opening groove 21B relative to the second base portion 212 facilitates the application of force to the second base portion 212 by the first webbing 11 and the second webbing 12 in a symmetrical manner, resulting in balanced force on the second base portion 212, thereby achieving higher stability and a longer service life.

[0035] In one example, the adapter 213 has a through hole for the second base portion 212 to pass through, and the adapter 213 is accommodated within the cavity defined by the first base portion 211 and the cover 214. In one example, the second base portion is a rivet. The cover 214 accommodates the adapter 213 to cover the adapter and its connection with both the first and second base portions.

[0036] As an embodiment of the present invention, the first webbing 11 is configured as a shoulder webbing and includes an annular member 111 that surrounds the second base portion 212 for a complete circle, and the second webbing 12 surrounds a portion of the second base portion 212. The ends of the first webbing 11 and the second webbing 12 are fixed together at intervals, with both ends located outside the annular member 11 and fixed together. This ensures that the webbing 10 is uniformly stressed overall. Of course, this is merely an example; the seatbelt of the present invention is not limited to this. Alternatively, a portion of the second webbing can be formed as an annular member surrounding the second base portion, with both ends of the first and second webbing located outside the annular member and fixed together.

[0037] Figure 3 schematically illustrates the various components of a seat belt according to another embodiment of the present invention. The seat belt according to another embodiment of the present invention will be described below with reference to Figure 3.

[0038] The following mainly describes the differences from the embodiment shown in FIG2; similarities will not be described to avoid redundancy. As shown in FIG3, the first base portion 211 can be constructed as a plate-like member, and the first base portion 211 can be integrally formed with the latch 22. The first base portion 211 includes a first bent portion 2111 and a second bent portion 2112 bent relative to each other, and a second opening groove 21B is provided on the first bent portion 2112. Unlike the embodiments shown in FIG1(a), FIG1(b) and FIG2, in the embodiment shown in FIG3, the first webbing 11 and the second webbing 12 extend from the convex side of the first base portion 211, rather than from the concave side of the first base portion 211.

[0039] Similarly, the second base portion 212 can be constructed as an elongated member, and a pair of transition portions 213 are provided, which can be integrally formed with the second base portion 212. Accordingly, each of the pair of transition portions 213 is provided with a through hole, and a fastener (e.g., a screw) fixes the transition portion 213 together with the second base portion 212 to the concave side surface of the first base portion 211. In other words, a second base portion 212 is fixed at the lower edge of the adapter portion 213, and a first base portion 211 is fixed at the middle portion of the adapter portion 213. Thus, the first base portion 211 and the second base portion 212 are fixed at different first predetermined positions and second predetermined positions of the adapter portion 213. The first predetermined position and the second predetermined position are spaced apart by a predetermined distance in the thickness direction of the first base portion 211. This makes the first base portion 211 and the second base portion 212 spaced apart when the first base portion 211 and the second base portion 212 are connected to the adapter portion 213. Specifically, both the first bent portion 2111 and the second bent portion 2112 of the first base portion 211 are spaced apart from the second base portion 212. It should be noted that the first base portion 211 and the second base portion 212 are set to be spaced apart from each other, so that a space is reserved between the first base portion 211 and the second base portion 212. This space is used to accommodate the first webbing 11 and the second webbing 12 when they are fixed to the second base portion 212.

[0040] Furthermore, a first opening slot 21A is provided on the top of the cover 214. Similarly, the cover 214 and the first base portion 211 define an inner cavity for receiving the ends of both the first webbing 11 and the second webbing 12. Accordingly, in order to connect the first base portion 211 and the cover 214, a first mating portion 2111A is provided on the first base portion 211, and a second mating portion (not shown) is provided on the cover 214 to mate with the first mating portion 2111A. In one example, the first mating portion 2111A is constructed as a snap-fit ​​portion, and the second mating portion 214A is constructed as a slot portion, so that the first base portion 211 and the cover 214 are connected together in a snap-fit ​​manner. In this embodiment, the angle between the first bend and the second bend of the first base portion is relatively large, making the inner cavity formed by the first base portion and the cover more flat. That is, in the seat belt of the present invention, the inner cavity of the latch has a variety of shapes and / or sizes to meet different needs. However, the inner cavity can still cover the ends of the first and second webbing and the fixing portion (e.g., the stitching portion) that fixes the webbing to the second base portion, thereby improving the external aesthetics of the latch.

[0041] As mentioned above, although exemplary embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the specific embodiments described above, and the scope of protection of the present invention should be defined by the claims and their equivalents.

Claims

1. A seat belt (1) comprising a webbing (10) and a latch (20), the latch (20) comprising a base (21) and a tongue (22) connected relative to each other at a predetermined angle, the base (21) having an opening slot, Its features are, The webbing (10) includes a first webbing (11) and a second webbing (12), the opening groove includes a first opening groove (21A) and a second opening groove (21B), the first webbing (11) and the second webbing (12) extend in different directions after passing through the first opening groove (21A) and the second opening groove (21B) respectively, and, The base (21) includes a first base portion (211) and a second base portion (212). The first base portion (211) is fixed together with the tongue (22), and the second base portion (212) is fixed together with both the first webbing (11) and the second webbing (12). The first base portion (211) and the second base portion (212) are connected to a first predetermined position and a second predetermined position of the adapter (213), wherein the first predetermined position and the second predetermined position are spaced apart by a predetermined distance.

2. The seat belt (1) according to claim 1, wherein, The first base portion (211) is configured as a plate-like member, and the first predetermined position and the second predetermined position are spaced apart by a predetermined distance in the thickness direction of the first base portion (211).

3. The seat belt (1) according to claim 2, wherein, The second base portion (212) is constructed as an elongated member, and is provided with a pair of the aforementioned transition portions (213). Both ends of the second base portion (212) are respectively fixed to the pair of the aforementioned transition portions (213); and The first base portion (211) includes a first bent portion (2111) and a second bent portion (2112) bent relative to each other. The tongue (22) and the second bent portion (2112) are respectively positioned on opposite sides of the first bent portion (2111). The other opposite sides of the first bent portion (2111) are respectively fixed to a pair of the transition portions (213). The second bent portion (2112) is provided with the first opening groove (21A).

4. The seat belt (1) according to claim 3, wherein, A portion of one of the first webbing (11) and the second webbing (12) forms an annular member (111) surrounding the second base portion (212), and the ends of the first webbing (11) and the second webbing (12) are located outside the annular member (111) and are fixed together.

5. The seat belt (1) according to claim 4, wherein, The base (21) also includes a cover (214) that mates with the first base portion (211), the first base portion (211) and the cover (214) together defining the second opening groove (21B), and the cover (214) and the first base portion (211) defining an inner cavity for receiving the ends of both the first webbing (11) and the second webbing (12).

6. The seat belt (1) according to claim 5, wherein, The first base portion (211) is provided with a first mating portion (2111A), and the cover (214) is provided with a second mating portion (214A) that mates with the first mating portion (2111A).

7. The seat belt (1) according to claim 5, wherein, The adapter (213) is provided with a through hole for the second base part (212) to pass through, and the adapter (213) is accommodated in the inner cavity.

8. The seat belt (1) according to claim 2, wherein, The adapter (213) is integrally formed with the first base part (211) and extends perpendicular to the plane where the first base part (211) is located.

9. The safety belt (1) according to claim 8, wherein The first opening groove (21A) and the second opening groove (21B) are located on opposite sides of the second base portion (212).

10. The safety belt (1) according to claim 4, wherein The first webbing (11) is configured as a shoulder webbing and includes the ring (111), the second webbing (12) surrounds a portion of the second base portion (212), and the ends of the first webbing (11) and the second webbing (12) are fixed together at intervals.

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