Safety belt structure

Abstract

The present application provides a seat belt structure which can prevent the potential sliding phenomenon caused by vehicle collision with low cost and low installation time, and can firmly fix the buckle device without moving arbitrarily. The seat belt structure comprises a seat adapted for a passenger to sit on, a webbing adapted to bind the waist or the thigh of the passenger sitting on the seat and having a tongue, a buckle device arranged on one side of the seat in the width direction and adapted to be buckled with the tongue, an anchor plate connecting the buckle device and a side frame of the seat, and a pivot member rotatably connecting the anchor plate to the side frame. The anchor plate comprises a claw portion extending outward from the edge of the anchor plate, and the side frame comprises a slot. The claw portion is buckled in the slot. When the vehicle collides, the weight applied to the buckle device through the webbing causes the claw portion to fall off the slot, and the buckle device rotates around the pivot member as the center axis.

Description

TECHNICAL FIELD

[0001] The present invention relates to a safety belt structure. BACKGROUND

[0002] In the conventional safety belt device, in order to prevent the passenger from falling down from the seat due to the vehicle collision, a mechanism is provided to move the buckle downward when the vehicle collides, so that the safety belt originally tied around the waist is moved to an angle to prevent the passenger from falling down. However, the rotating mechanism by means of a powder cylinder or a motor is complicated in structure, and is high in cost and installation time.

[0003] [Conventional Art Document]

[0004] [Patent Document]

[0005] [Patent Document 1] Japanese Patent Publication No. 2005-193846 SUMMARY

[0006] The present invention provides a safety belt structure which can prevent the falling down phenomenon due to the vehicle collision with a simple structure at a low cost and low installation time, and can firmly fix the buckle device without moving arbitrarily.

[0007] The present invention provides a safety belt structure, comprising: a seat adapted for a passenger to sit on; a webbing to restrain the waist or the thigh of the passenger sitting on the seat, and having a tongue; a buckle device disposed on one side in the width direction of the seat, and adapted to be buckled with the tongue; an anchor plate connecting the buckle device and a side frame of the seat; and a pivot member rotatably mounting the anchor plate to the side frame, wherein the anchor plate includes a claw portion, the side frame includes a slot, the claw portion extends outward from the edge of the anchor plate, and the claw portion is buckled in the slot, and when the vehicle collides, the weight applied to the buckle device through the webbing causes the claw portion to fall out of the slot, and the buckle device rotates around the pivot member as the center axis.

[0008] In an embodiment of the present invention, the claw portion includes a body portion, an insertion portion adapted to be inserted into the slot, and a bent portion formed between the body portion and the insertion portion, wherein the bent portion is an obtuse angle.

[0009] In an embodiment of the present invention, the width of the slot is greater than the width of the claw portion.

[0010] In an embodiment of the present invention, the claw portion extends from the edge of the anchor plate toward the rear of the seat.

[0011] In one embodiment of the present application, the belt buckle device includes a strap, and the anchor plate further includes a connecting portion to which the strap is connected, and the connecting portion is bent toward the outside in the width direction of the seat.

[0012] Based on the above, in the seat belt structure of the present application, the seat is adapted for a passenger to sit on, the webbing restrains the waist or the thigh of the passenger sitting on the seat, and the tongue, the belt buckle device is arranged on one side in the width direction of the seat, and is used to be buckled with the tongue, the anchor plate is used to connect the belt buckle device and the side frame of the seat, and the pivot member rotatably mounts the anchor plate to the side frame, wherein the anchor plate includes a claw portion, the side frame includes a slot, the claw portion extends outward from the edge of the anchor plate, and the claw portion is buckled in the slot, and when the vehicle collides, the weight applied to the belt buckle device through the webbing causes the claw portion to fall off from the slot, so that the belt buckle device rotates around the pivot member as the rotation center axis. In this way, when the vehicle collides, the belt buckle device rotates around the pivot member as the rotation center axis, so that the belt buckle device and the webbing can move to a position below the waist of the passenger, preventing the passenger from sliding off the seat. Accordingly, the seat belt structure of the present application can prevent the sliding phenomenon caused by the vehicle collision at a lower cost and with low installation time, and can firmly fix the belt buckle device without moving arbitrarily at ordinary times.

[0013] In order to make the above features and advantages of the present application more obvious and easy to understand, the following embodiments are described in detail below, and the detailed description is as follows with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of a seat belt structure according to one embodiment of the present application.

[0015] Figure 2 is Figure 1 is a partial enlarged schematic view of the seat belt structure shown in area A.

[0016] Figure 3 is Figure 1 is a partial top view schematic view of the seat belt structure shown.

[0017] Figure 4 is Figure 1 is another view schematic view of the seat belt structure shown.

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] 10: passenger;

[0020] 11: waist;

[0021] 12: thigh;

[0022] 100: seat belt structure;

[0023] 110: seat;

[0024] 112: side frame

[0025] 112a: slot

[0026] 120: webbing

[0027] 122: tongue

[0028] 130: buckle device

[0029] 132: strap

[0030] 140: anchor plate

[0031] 140a: edge

[0032] 142: claw portion

[0033] 142a: body portion

[0034] 142b: curved portion

[0035] 142c: insertion portion

[0036] 144: connecting portion

[0037] 150: pivot

[0038] A: area

[0039] Fr: seat front direction

[0040] L: seat left direction

[0041] Rr: seat rear direction

[0042] R: seat right direction

[0043] W1, W2: width DETAILED DESCRIPTION

[0044] Reference will now be made in detail to the exemplary embodiments of the present application, examples of which are illustrated in the accompanying drawings. Figure 1 is a schematic view of a safety belt structure according to an embodiment of the present application. Figure 2 is a schematic view of a safety belt structure according to an embodiment of the present application. Figure 1 is a partial enlarged schematic view of the safety belt structure shown in FIG. 1. Figure 3 is a partial schematic view of the safety belt structure shown in FIG. 1. Figure 1 is a partial top view schematic view of the safety belt structure shown in FIG. 1. Figure 4 is another perspective view schematic view of the safety belt structure shown in FIG. 1. Figure 1 The following will explain the detailed structure of the safety belt structure 100, but the safety belt structure 100 is only one example of the present application, and the present application is not limited to this. Figures 1 to 4 The following will explain the detailed structure of the safety belt structure 100, but the safety belt structure 100 is only one example of the present application, and the present application is not limited to this.

[0045] Please refer to Figure 1 In the present embodiment, the seat belt structure 100 includes a seat 110, a webbing 120, a buckle device 130, an anchor plate 140, and a pivot 150. The seat 110 is provided in a vehicle (not shown) and is adapted for a passenger 10 to sit on. The webbing 120 is provided on the seat 110 and restrains the waist 11 or the thigh 12 of the passenger 10 sitting on the seat 110, and has a tongue 122. The buckle device 130 is disposed on one side in the width direction of the seat 110 (for example, on the right side of the seat 110 as shown in the drawing, but can be disposed on the left side of the seat 110 in other embodiments not shown) and is adapted to be engaged with the tongue 122. The anchor plate 140 connects the buckle device 130 and a side frame 112 of the seat 110. The pivot 150 rotatably mounts the anchor plate 140 to the side frame 112. The specific structure of the seat belt structure 100 can be adjusted as needed, and the present application is not limited thereto. Figure 1

[0046] The seat belt structure 100 configured as described above can, when the vehicle collides, rotate the buckle device 130 about the pivot 150 as a rotation center axis, and thereby displace the webbing 120 engaged with the buckle device 130 to a position further downward relative to the waist 11 or the thigh 12 of the passenger 10 normally restrained. In this way, the seat belt structure 100 can prevent the passenger 10 from sinking and sliding down when the vehicle collides, and thereby cause less damage. In order to better illustrate the mechanism of the rotation of the buckle device 130 when the vehicle collides, the seat belt structure 100 in the region A is further described below. Figure 1

[0047] Please refer to Figure 2 , Figure 2 Figure 1 is an enlarged view of the region A. In the present embodiment, the anchor plate 140 includes a claw portion 142, and the side frame 112 includes a slot 112a. The claw portion 142 extends outward from an edge 140a of the anchor plate 140, and the claw portion 142 is engaged with the slot 112a so that the anchor plate 140 is not allowed to rotate arbitrarily relative to the side frame 112. When the vehicle collides, the weight applied to the buckle device 130 via the webbing 120 pulls the anchor plate 140, the claw portion 142 is disengaged from the slot 112a, the anchor plate 140 is no longer fixed to the side frame 112, and thereby the buckle device 130 is allowed to rotate about the pivot 150 as a rotation center axis. By the above-described configuration, the seat belt structure 100 does not need to drive the buckle device 130 with a complicated mechanism, and can reduce the cost of the seat belt structure 100 while achieving the rotation of the buckle device 130 when necessary with a simple structure to prevent the sinking and sliding down of the passenger 10.

[0048] In detail, in the present embodiment, as shown in Figure 2 ​​​As shown, the width Wl of the slot 112a is greater than the width W2 of the claw portion 142. Accordingly, when the anchor plate 140 is mounted on the side frame 112, the claw portion 142 can be easily inserted into the slot 112a, in addition to the position of the installation, to reduce the time spent on assembly. In addition, since the claw portion 142 extends from the edge 140a of the anchor plate 140 to the rear direction of the seat 110 (i.e. the seat rear direction Rr in Figure 2 the vehicle collision, the direction of the weight applied by the webbing 120 to the buckle device 130 is the same as the direction of the extension of the claw portion 142. Thus, the webbing 120 can quickly rotate the buckle device 130 in the direction of the seat 110 (i.e. the seat front direction Fr in Figure 2 the vehicle collision, the direction of the weight applied by the webbing 120 to the buckle device 130 is the same as the direction of the extension of the claw portion 142. Thus, the webbing 120 can quickly rotate the buckle device 130 in the direction of the seat 110 (i.e. the seat front direction Fr in

[0049] Further, please refer to Figure 3 In the present embodiment, the claw portion 142 includes a body portion 142a, an insertion portion 142c, and a curved portion 142b formed between the body portion 142a and the insertion portion 142c. The insertion portion 142c is adapted to be inserted into the slot 112a so that the anchor plate 140 is fixed to the side frame 112 in the normal state (i.e. the state without the vehicle collision). In the normal use state, the weight applied by the webbing 120 to the buckle device 130 does not exceed 200N, and thus the insertion portion 142c does not deform and is still firmly buckled in the slot 112a, and the buckle device 130 and the anchor plate 140 do not rotate arbitrarily relative to the side frame 112.

[0050] When the vehicle collision occurs, the force at the moment of the collision can make the weight applied by the webbing 120 to the buckle device 130 exceed 5000N, and thus a torque is generated with the pivot 150 as the fulcrum. At this time, the insertion portion 142c deforms and escapes from the slot 112a under the load of the torque, and the anchor plate 140 is driven to rotate in the direction of the torque, so that the buckle device 130 and the anchor plate 140 are displaced to the position below the seat 110 to protect the passenger 10.

[0051] It should be particularly noted that in order to ensure that the claw portion 142 can deform to escape from the buckling state and make the anchor plate 140 and the buckle device 130 rotate when the collision occurs, it is preferred that the curved portion 142b is designed as an obtuse angle. When the curved portion 142b is an obtuse angle, the insertion portion 142c does not excessively insert into the slot 112a. In addition, the body portion 142a extends from the anchor plate 140 to the rear direction of the seat 110 (i.e. the aforementioned direction of the claw portion 142 extending from the anchor plate 140 to the seat rear direction Rr) is the same as the direction of the weight transmission, which more easily promotes the deformation of the insertion portion 142c due to the weight, and accelerates the starting speed of the safety mechanism.

[0052] In addition, please refer to Figure 2and Figure 4 ,in Figure 4 Is Figure 2 A partial enlarged view of the vicinity of the buckle device 130. In this embodiment, the buckle device 130 includes a strap 132, and the anchor plate 140 further includes a connecting portion 144. The strap 132 is connected to the connecting portion 144, and the connecting portion 144 extends outward in the width direction of the seat 110 (e.g., in...). Figure 4 The buckle is shown as being positioned on the right-hand (R) side of seat 110, but in other embodiments not shown, it may also be positioned on the left-hand (L) side of seat 110. Accordingly, the load applied to the anchor plate 140 by the buckle device 130 is distributed, preventing stress concentration at the connection 144 and subsequent breakage. Simultaneously, the anchor plate 140 is easier to rotate, allowing the buckle device 130 to be quickly moved into place, preventing the passenger 10 from slipping.

[0053] In summary, in the seat belt structure of the present invention, the seat is suitable for a passenger to sit on, the webbing restrains the passenger's waist or thighs, and has a tongue, a buckle device disposed on one side of the seat in the width direction for engaging with the tongue, an anchor plate for connecting the buckle device to the side frame of the seat, and a pivot member for rotatably mounting the anchor plate to the side frame. The anchor plate includes a claw portion, the side frame includes a slot, the claw portion extends outward from the edge of the anchor plate, and the claw portion engages with the slot. Furthermore, when a vehicle impacts, the weight applied to the buckle device via the webbing causes the claw portion to disengage from the slot, allowing the buckle device to rotate around the pivot member as its rotation axis. Preferably, the claw portion also includes a body portion, an insertion portion, and a bending portion, wherein the bending portion is designed with an obtuse angle to facilitate deformation of the claw portion, ensuring reliable activation of the safety mechanism during a vehicle impact. Thus, in the event of a vehicle collision, the buckle device rotates around the pivot point, allowing the buckle device and webbing to move to a position below the passenger's waist, preventing the passenger from sliding off the seat. Accordingly, the seatbelt structure of the present invention, with its simple construction, can prevent slippage during a vehicle collision at a lower cost and with less installation time, while also reliably securing the buckle device to prevent arbitrary movement under normal conditions.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seat belt arrangement, characterized in that Including: a seat adapted for a passenger to sit on; a webbing restraining a waist or a thigh of the passenger sitting on the seat, and having a tongue; a buckle device disposed at one side in a width direction of the seat, and adapted to be buckled with the tongue; an anchor plate connecting the buckle device and a side frame of the seat; and a pivot member rotatably mounting the anchor plate to the side frame, wherein the anchor plate includes a claw portion, the side frame includes a slot, the claw portion extends outward from an edge of the anchor plate, and the claw portion is buckled in the slot, and when a vehicle collides, a weight applied to the buckle device via the webbing, the claw portion is released from the slot, and then the buckle device is rotated about the pivot member as a center axis, the claw portion includes a body portion, an insertion portion adapted to be inserted into the slot, and a curved portion formed between the body portion and the insertion portion, wherein the curved portion is an obtuse angle.

2. The safety belt structure according to claim 1, wherein a width of the slot is greater than a width of the claw portion.

3. The safety belt structure according to claim 1, wherein the claw portion extends from the edge of the anchor plate in a direction toward a rear of the seat.

4. The safety belt structure according to claim 1, wherein the buckle device includes a strap, the anchor plate further includes a connecting portion, the strap is connected to the connecting portion, and the connecting portion is curved toward an outside in a width direction of the seat. ​

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