Seat belt system and seat assembly

Abstract

The present invention provides a seat belt system and a seat assembly. The safety belt system comprises: a seat belt and a seat belt tensioner, the seat belt tensioner and a webbing of the seat belt being fixed together. The seat belt system further comprises a holder and a guide, the holder being used for fixing the seat belt tensioner at a predetermined position in a seat, the guide being used for guiding the webbing from the seat belt tensioner to a seat side part, and the holder and the guide being integrally formed as a single member.

Description

Seat belt system and seat components Technical Field

[0001] This invention relates to safety devices for vehicles, and more specifically, to seat belt systems and seat assemblies equipped with such seat belt systems. Background Technology

[0002] As a safety device in vehicles, seat belts are used to restrain occupants in the event of a collision, thereby preventing occupants from secondary collisions with the steering wheel and dashboard, or from being ejected from the vehicle and suffering injury or death. Seat belts use webbing pulled from the seat belt retractor to restrain occupants seated in their seats, protecting them in the event of a collision or other accidents.

[0003] Typically, a seatbelt tensioner is included in the seatbelt assembly to prevent the seatbelt from slackening. This tensioner acts on, for example, the end of the seatbelt and applies a counter-tensioning force. When a vehicle experiences a collision, the tensioner acts on the seatbelt, causing it to move in the tensioning direction. This type of seatbelt tensioner can be installed on the side or under the vehicle seat, and the seatbelt and tensioner are connected by a connecting member to allow for flexible and smooth movement of the seatbelt.

[0004] Therefore, there is a need to provide a seat belt device that is both compact and comfortable. Summary of the Invention

[0005] The purpose of this invention is to provide a compact and comfortable seat belt system, and a seat assembly equipped with the seat belt system.

[0006] One aspect of the present invention provides a seatbelt system comprising:

[0007] The seat belt and seat belt tensioner are provided, and the seat belt tensioner is fixed to the webbing of the seat belt.

[0008] in,

[0009] The seatbelt system further includes a retainer and a guide, the retainer for securing the seatbelt tensioner at a predetermined position in the seat, and the guide for guiding the webbing from the seatbelt tensioner to the side of the seat.

[0010] The retainer and the guide are integrally formed as a single component.

[0011] According to an embodiment of the invention, the guide has a hollow cavity for the webbing to pass through; and,

[0012] The guide includes a first guide section extending along a first direction and a second guide section extending along a second direction, wherein the first direction is different from the second direction.

[0013] According to an embodiment of the present invention, the retainer includes a channel portion in which a portion of the seat belt tensioner is positioned, and the first guide section communicates with the channel portion.

[0014] According to an embodiment of the present invention, a fastener is further included for securing the guide member to a predetermined installation position of the seat, and the fastener is positioned on the second guide section.

[0015] According to an embodiment of the present invention, the fastener is configured to surround a portion of the outer surface of the second guide section.

[0016] According to an embodiment of the present invention, the fastener includes a lug, and the lug is provided with a fixing portion for fixing to a predetermined installation position of the seat.

[0017] According to an embodiment of the present invention, the retaining member includes a first plate and a second plate spaced apart, the first plate and the second plate defining the channel portion, and both being fixed to the ends of opposite sidewalls of the first guide section.

[0018] According to an embodiment of the present invention, one end of the webbing is fixed to the seat belt tensioner.

[0019] Another aspect of the present invention provides a seat assembly comprising a seat belt system as described in any of the preceding claims and a seat equipped with said seat belt system.

[0020] The seat includes a seat frame with a seat frame side portion, the seat frame side portion including a side opening facing the vehicle interior space; the seat includes a seat cross tube connected to the seat frame side portion and including a receiving portion for accommodating the seat belt tensioner, the receiving portion communicating with the side opening; and...

[0021] A portion of the guide is housed in the receiving portion and extends from the side opening to the side of the seat frame.

[0022] According to an embodiment of the present invention, the guide is configured as a bent tube;

[0023] And / or,

[0024] The seat belt tensioner fixes one end of the webbing, which can move between a first position and a second position, both of which are located within the receiving portion. Attached Figure Description

[0025] 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:

[0026] Figure 1 schematically illustrates a seat assembly according to an embodiment of the present invention.

[0027] Figure 2 schematically illustrates a seatbelt system in an assembled state according to an embodiment of the present invention.

[0028] Figure 3 schematically illustrates a seatbelt system in a disassembled state according to an embodiment of the present invention. Detailed Implementation

[0029] The following describes specific embodiments of the seatbelt system and seat assembly according to the present invention with reference to 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.

[0030] 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.

[0031] Figure 1 schematically illustrates a seat assembly according to an embodiment of the present invention. The seat assembly according to an embodiment of the present invention will be described below with reference to Figure 1.

[0032] As shown in Figure 1, the present invention provides a seat assembly 100 for passenger seating in a vehicle, which can be any vehicle used to transport passengers, such as a car, truck, or bus. The seat assembly 100 includes a seatbelt system 1 and a seat 2, the seat 2 being equipped with the seatbelt system 1 to protect the safety of the passenger on the seat 2. This is described in detail below.

[0033] Seat 2 includes a seat cushion, a backrest, and a seat frame 201. The seat cushion and backrest are fixed to a floor panel in the vehicle interior space via the seat frame 201. The seat frame 201 includes seat frame sides 202, with two seat frame sides 202 arranged on opposite sides of seat 2. The seat frame 201 also includes a seat cross tube 203 for connecting the seat frame sides 202 together. The seat frame 201 may be made of a high-strength material. Optionally, the seat frame sides 202 may be connected to the seat cross tube 203 in any way, particularly integrally. Of course, the seat cross tube 203 may optionally be a separate component, i.e., not part of the seat frame 201 and / or not integrally connected to the seat frame sides 202.

[0034] In the orientation of seat 2 shown in Figure 1, from the perspective of a passenger seated in seat 2, the rightward direction in Figure 1 is the forward direction, and the seat cross tube 203 extends through seat 2 in a direction approximately perpendicular to the plane of the paper; that is, the seat cross tube 203 extends laterally to the passenger's forward direction. It can be understood that the length direction of the seat cross tube 203 is approximately horizontal and perpendicular to the forward direction. Of course, this is merely an example, and the seat cross tube 203 can extend through seat 2 in any direction. In one example, the seat cross tube 203 is designed as a hollow cylinder with a circular cross-section, and the hollow space inside the seat cross tube 203 serves as a receiving portion that can accommodate the seat belt tensioner 10 in the seat belt system 1. Of course, this is merely an example, and the seat cross tube 203 is not limited to the form of a hollow cylinder and can have other forms, as long as it includes a receiving portion for the seat belt tensioner 10. Accordingly, the seat frame side portion 202 has a through hole extending through the seat frame side portion 202 in a direction perpendicular to the plane of the paper, and has an opening on its outer side facing the vehicle interior space. The seat cross tube 203 is connected to the seat frame side portion 202 such that it passes through the through hole into the vehicle interior space, and the opening on its outer side forms an entrance to the receiving portion. The seat frame 201 may be made of steel, and the seat frame side portion 202 is welded to the seat cross tube 203.

[0035] The seatbelt system 1 includes a seatbelt 20 and a seatbelt tensioner 10, wherein the seatbelt tensioner 10 is fixed to the webbing 21 of the seatbelt 20. The seatbelt tensioner 10 is used to pull the webbing 21 in a direction perpendicular to the paper and inwards, for example, in the event of a collision, to tension the webbing 21. Therefore, the seatbelt tensioner 10 can be moved from a first position to a second position, both of which are located within a receiving portion, and an actuator (not shown) provides driving force to drive the aforementioned displacement of the seatbelt tensioner 20. In one example, the actuator may be configured in the form of a gas generator.

[0036] Figure 2 schematically illustrates a seatbelt system in an assembled state according to an embodiment of the present invention. Figure 3 schematically illustrates a seatbelt system in a disassembled state according to an embodiment of the present invention. The seatbelt system according to an embodiment of the present invention will be described below with reference to Figures 2 and 3.

[0037] As shown in Figures 2 and 3, in addition to the seat belt tensioner 10 and the webbing 21 of the seat belt 20, the seat belt system 1 also includes a retainer 40 and a guide 30. These two components will be described in detail below.

[0038] The retainer 40 is used to secure the seat belt tensioner 10 at a predetermined position in the seat 2, for example, it can be secured to a receiving portion of the seat cross tube 203 mentioned above. In one example, the retainer 40 may include a first plate 41 and a second plate 42 spaced apart, which define a passage in which a portion of the seat belt tensioner 10 and a portion of the webbing 21 are positioned and connected together; it is understood that in this example, the passage has two opposing walls and two opposing open sides (the front and rear sides in FIG2 are open sides), such that the open sides facilitate easy observation and operation of the connection between the seat belt tensioner 10 and the webbing 21. The connection between the seat belt tensioner 10 and the webbing 21 can be, for example, by fixing one end of the seat belt tensioner 10 with a fixing device 11, which is a component in the form of a webbing buckle, through which the annular end of the webbing 21 passes, thereby fixing the end of the webbing 21 to the seat belt tensioner 10, and in particular its tension transmission element (not shown). In this example, the seatbelt tensioner 10 is used as an end fitting at the end of the webbing 21; of course, the seatbelt tensioner 10 can also be arranged at other locations on the seatbelt, such as the buckle. Optionally, the tension transmission element is a steel rope or rod. Furthermore, the first plate 41 and the second plate 42 are fixed to the seatbelt tensioner 10 at their ends (left end in the figure), and the first plate 41 and the second plate 42 are fixed to the seat cross tube 203, thereby securing the seatbelt tensioner 10 to the seat cross tube 203. Of course, the above embodiment is merely an example; the retainer of the present invention is not limited to a channel portion with an open side, and the retainer can have other forms, as long as the retainer can secure the seatbelt tensioner to a predetermined position, such as the seat cross tube.

[0039] In the seat belt system 1 of the present invention, the guide 30 and the retainer 40 are integrally formed as a single component, and, as shown in FIG1, the guide 30 is used to guide the webbing 21 from the seat belt tensioner 10 to the seat side.

[0040] Therefore, the guide and retainer have an integral design, which can have higher structural strength; and the seat belt system of the present invention has fewer parts, and thus has a compact structure and occupies less installation space, while guiding the webbing to an angle / direction that is comfortable for the passenger, thus providing a high level of passenger comfort.

[0041] In one example, the guide 30 can be constructed as a bent tube, meaning that the guide 30 is completely closed in the circumferential direction. Of course, this is merely an example; the guide can also extend only partially in the circumferential direction, giving it a segmental shape rather than a fully closed loop. Furthermore, a portion of the guide 30 is received within a receiving portion of the seat cross tube 203 to ensure that the retainer 40, and thus the seatbelt tensioner 10, are fully received within the receiving portion. Additionally, the guide 30 extends from a side opening in the seat frame side portion 202. As one embodiment of the invention, the guide 30 may include a first guide segment 31 and a second guide segment 32, the first guide segment 31 being substantially positioned within the receiving portion of the seat cross tube 203, and the second guide segment 32 being substantially positioned at the side of the seat frame. The first guide section 31 extends along a first direction, that is, the length direction of the seat cross tube 203, and the second guide section 32 extends along a second direction, that is, a direction substantially perpendicular to the length direction of the seat cross tube 203. The second guide section 32, which has a deflecting function, extends generally in the front and upward direction towards the passenger, so that the webbing 21 has a comfortable extension direction for the passenger. It is understood that, due to the guide section, the webbing can be guided towards the vehicle occupants, allowing the webbing to provide excellent protection while maintaining restraint, and making the vehicle occupants feel particularly comfortable. Optionally, the first guide section 31 and the second guide section 32 are connected by an arc transition section, so that the webbing 21 is guided with less friction, thereby reducing wear on the webbing 21 and ensuring smooth movement of the webbing 21, providing a higher level of safety.

[0042] Furthermore, the first plate 41 and the second plate 42 of the retainer 40 are respectively fixed to the ends of the opposite sidewalls of the first guide section 31 of the guide 30, and the first guide section 31 communicates with the channel portion of the retainer 40. Thus, the channel portion of the retainer 40 and the hollow cavity of the guide 30 together define the path of the webbing 21 from the seat frame side 202 to the seat belt tensioner 10. Of course, the curved tube type guide is merely an example, and the guide is not limited to this; any guide with a hollow cavity for the webbing to pass through is acceptable. It is understood that because a portion of the guide with the first and second guide sections extends into the receiving portion of the seat cross tube, the webbing is guided into the interior of the seat cross tube, so that the vehicle occupant does not see the connection between the webbing and the seat belt tensioner; moreover, the webbing located on the side of the seat frame is a single piece (i.e., not segmented), thus having a more compact structure.

[0043] The following describes the fixing between the guide member and the side of the seat frame. For this purpose, the seat belt system 1 of the present invention also includes a fastener 50 for fixing the guide member 30 to a predetermined installation position of the seat 2 (e.g., the side of the seat frame), and the fastener 50 is positioned on the section of the guide member 30 located on the side of the seat frame 202, namely the second guide section 32. In one example, the fastener 50 is a single component separate from the guide member 30 and can be configured to surround a portion of the outer surface of the second guide section 32, that is, the sides of the second guide section 32 other than those abutting the side of the seat frame 202; and the fastener 50 is directly fixed to the side of the seat frame 202, thereby clamping the second guide section 32 between the fastener 50 and the side of the seat frame 202. In one example, the fastener 50 includes lugs 51 and two lugs 52 located on the lateral sides of the guide 30. The lugs 51 are provided with a fixing portion for securing to the seat, such as a hole through which a screw passes to secure the fastener 50 to the side of the seat frame. Of course, this is merely an example; the fastener is not limited to the above-described form or individual component, and the fixing portion is not limited to the above embodiments. For example, the fastener may be integrally formed with the guide, and / or the fixing portion may be other forms such as a snap-fit, welded portion, or adhesive portion.

[0044] 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 seatbelt system (1), comprising: The seat belt (20) and seat belt tensioner (10) are provided, and the seat belt tensioner (10) is fixed together with the webbing (21) of the seat belt (20). Its features are, The seatbelt system (1) further includes a retainer (40) and a guide (30), the retainer (40) for securing the seatbelt tensioner (10) at a predetermined position in the seat (2), and the guide (30) for guiding the webbing (21) from the seatbelt tensioner (10) to the side of the seat, and, The retainer (40) and the guide (30) are integrally formed as a single component.

2. The safety belt system (1) according to claim 1, wherein The guide (30) has a hollow inner cavity for the webbing (21) to pass through; as well as, The guide (30) includes a first guide section (31) extending along a first direction and a second guide section (32) extending along a second direction, wherein the first direction is different from the second direction.

3. The safety belt system (1) according to claim 2, wherein The retainer (30) includes a channel portion in which a portion of the seat belt tensioner (10) is positioned, and the first guide section (31) communicates with the channel portion.

4. The seatbelt system (1) according to claim 3, wherein, It also includes a fastener (50) for securing the guide (30) to a predetermined installation position on the seat (2), and the fastener (50) is positioned on the second guide section (32).

5. The safety belt system (1) according to claim 4, wherein The fastener (50) is configured to surround a portion of the outer surface of the second guide section (32).

6. The seatbelt system (1) according to claim 5, wherein, The fastener (50) includes a lug (51), and the lug (51) is provided with a fixing part that is fixed to a predetermined installation position of the seat (2).

7. The seatbelt system (1) according to claim 3, wherein, The retainer (40) includes a first plate (41) and a second plate (42) spaced apart, the first plate (41) and the second plate (42) defining the channel portion, and both being fixed to the ends of opposite sidewalls of the first guide section (31).

8. The seatbelt system (1) according to claim 1, wherein, One end of the webbing (21) is fixed to the seat belt tensioner (10).

9. A seat assembly (100), Its features are, Includes a seat belt system (1) according to any one of claims 1 to 8 and a seat (2) equipped with said seat belt system (1), The seat (2) includes a seat frame (201) having a seat frame side portion (202), the seat frame side portion (202) including a side opening facing the vehicle interior space; the seat (2) includes a seat cross tube (203) connected to the seat frame side portion (202) and including a receiving portion for accommodating the seat belt tensioner (10), the receiving portion communicating with the side opening; and... A portion of the guide (30) is housed in the receiving portion and extends from the side opening to the side portion (202) of the seat frame.

10. The seat assembly (100) according to claim 9, wherein, The guide (30) is constructed in the form of a bent tube; And / or, The seat belt tensioner (10) fixes one end of the webbing (21) and is movable between a first position and a second position, both of which are located in the receiving portion.

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