Tongue plate slip-prevention device

Abstract

This invention provides a tongue plate slip-prevention device that can prevent the tongue plate from slipping down with a simple configuration. [Solution] The tongue plate 3 slip-off prevention device is a tongue plate 3 slip-off prevention device provided in a vehicle, and comprises a flexible, elastic, and adhesive convex member 9 that is placed on the webbing belt 4 provided in the seat belt device, and a flexible adhesive member 10 that has an adhesive surface and is attached to the webbing belt 4 with the convex member 9 interposed therebetween.

Description

Technical Field

[0001] The present disclosure relates to a tang plate displacement prevention device provided in a seat belt device of a vehicle such as a passenger car.

Background Art

[0002] Vehicles such as passenger cars are equipped with a seat belt device for ensuring the safety of passengers. The seat belt device generally includes a webbing belt as a belt portion, a tang plate that is movable in the longitudinal direction of the webbing belt, and a buckle that is fixed to the seat side and is detachable from the tang plate.

[0003] In a seat belt device having such a configuration, a tang stopper (a tang plate displacement prevention device) made of a plastic resin is provided on the webbing belt for the purpose of preventing the tang plate from slipping off the webbing belt (for example, Patent Document 1). The tang stopper generally includes a first button having a convex portion and a second button having a concave portion, and is fixed by inserting the convex portion into a small hole formed in the webbing and sandwiching the webbing between the first button and the second button.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, conventional technologies, including those described in Patent Document 1, have the drawback of high installation costs due to the manufacturing and installation effort involved in fixing the tongue stopper to the webbing belt using a dedicated device. Furthermore, if the tongue stopper detaches from the webbing belt for any reason, the repair work also requires a certain amount of effort and cost.

[0006] Therefore, the purpose of this invention is to provide a tongue plate slip-prevention device that can prevent the tongue plate from slipping off the webbing belt with a simple configuration. [Means for solving the problem]

[0007] The tongue plate slip-prevention device of the present disclosure is a tongue plate slip-prevention device provided for a seat belt device installed in a vehicle, comprising a flexible, elastic, and adhesive convex member positioned on the webbing belt of the seat belt device, and a member attached to the webbing belt with the convex member interposed therebetween. , for fixing the convex member to the webbing belt It is equipped with a flexible adhesive material. [Effects of the Invention]

[0008] The tongue plate slip-off prevention device of this disclosure makes it possible to prevent the tongue plate from slipping off the webbing belt with a simple configuration. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram illustrating the structure of a seat belt device equipped with a tongue plate slippage prevention device according to one embodiment of the present disclosure. [Figure 2](a) Cross-sectional view AA of the tongue plate slip-off prevention device and webbing belt shown in Figure 1 in one embodiment of the present disclosure; (b) Cross-sectional view BB of the tongue plate slip-off prevention device and webbing belt shown in Figure 1 in one embodiment of the present disclosure; (c) A schematic diagram illustrating the structure of the tongue plate included in the seat belt device in one embodiment of the present disclosure. [Figure 3] Figure 1 is a cross-sectional view (CC) of a tongue plate slippage prevention device, webbing belt, and tongue stopper according to one embodiment of the present disclosure. [Figure 4] This is a schematic diagram illustrating the structure of a seat belt device equipped with a tongue plate slippage prevention device, which is a modified example of one embodiment of the present disclosure. [Modes for carrying out the invention]

[0010] Referring to Figures 1 and 2, a tongue plate slip-off prevention device in one embodiment of the present invention will be described. Figure 1 is a partial view of a seat belt device equipped with a tongue plate slip-off prevention device. In Figure 1, the seat belt device 1, which is installed in a vehicle such as a passenger car (not shown), comprises a buckle 2 fixed to the seat side (not shown) via a webbing belt 11, a tongue plate 3 that can be fixed to the buckle 2, and a webbing belt 4 to which the tongue plate 3 is attached so as to be movable along the longitudinal direction.

[0011] Buckle 2 has an insertion opening (not shown) into which the tongue plate 3 is inserted. Buckle 2 also has a built-in locking mechanism (not shown) that securely fastens the tongue plate 3 when it is inserted into the insertion opening. The tongue plate 3 is fastened and released by operating a release button (not shown) on buckle 2. This buckle 2 is of prior art.

[0012] The tongue plate 3 comprises a tongue plate body 7 formed from a metal such as an aluminum alloy, and a holder 8 that holds one end of the tongue plate body 7. The tongue plate body 7 is the part that is directly inserted into the buckle 2. The holder 8 has an opening 8a into which the webbing belt 4 is inserted, and the tongue plate 3 is movable along the longitudinal direction of the webbing belt 4 through the opening 8a. The holder 8 is molded from, for example, a plastic resin.

[0013] Webbing belt 4 is a strip of fabric extending in one direction, and refers to a cloth belt commonly recognized as a "seat belt."

[0014] In Figures 1 and 2(a), a slender convex member 9 is positioned below the tongue plate 3 and on the upper surface of the webbing belt 4. To enhance adhesion to the webbing belt 4, it is desirable that the convex member 9 has adhesive properties on its entire surface and is made of a soft, elastic material. Furthermore, the convex member 9 may be made not only of a soft, elastic resin, but also of a hard resin or a material other than resin (paper, rubber, metal, mineral, etc.).

[0015] The convex member 9 has a predetermined thickness and is positioned approximately in the center of the webbing belt 4 such that the longitudinal direction of the convex member 9 coincides with the direction that intersects (orthogonal to) the longitudinal direction of the webbing belt 4 (Figure 1). It is preferable that the convex member 9 be attached to the surface of the webbing belt 4 that is on the tongue plate body 7 side. The shape of the convex member 9 is not limited to an elongated shape or a rectangle, and can be any shape.

[0016] A thin sheet-like flexible adhesive member (tape member) 10 having an adhesive surface is attached to the webbing belt 4 so as to cover the convex member 9. Fig. 2(a) is a cross-sectional view taken along the line A-A shown in Fig. 1. The adhesive member 10 includes a base material 12 made of a soft resin material or the like that is thin and flexible, and an adhesive layer 13 formed on one surface of the base material 12. As shown in Fig. 2(a), the adhesive member 10 is attached to the webbing belt 4 with the adhesive layer 13 in contact therewith in a state of being partially raised following the convex member 9. The adhesive member 10 can be selected to have an arbitrary shape, such as rectangular, circular, or elliptical. In short, it is only necessary to have a region within a predetermined range that spreads in the in-plane direction on the webbing belt 4.

[0017] <000008​​​​​​​​​​​​As shown in Fig. 1, in the adhesive member 10, on one surface side where the adhesive layer 13 is formed, a non - adhesive region 14 where the adhesive layer 13 is not formed is partially formed. Fig. 2(b) is a cross - sectional view taken along the line B - B shown in Fig. 1. As shown in Fig. 2(b), the non - adhesive region 14 is in an open state, that is, exposed to the outside air, from the rear end portion 10b of the adhesive member 10. When it is necessary to peel the adhesive member 10 from the webbing belt 4, for example, by inserting a driver (tool) into the non - adhesive region 14, the adhesive member 10 can be easily peeled from the webbing belt 4.

[0021] Fig. 3 is a cross - sectional view taken along the line C - C shown in Fig. 1. In Fig. 3, when the tongue plate 3 falls along the longitudinal direction of the webbing belt 4 due to its own weight (arrow a), in the process, the adhesive member 10 passes through the opening 8a of the holder 8 from the front end portion 10a side. Then, in the process of the tongue plate 3 moving relatively to the rear end portion 10b side of the adhesive member 10, the opening 8a of the holder 8 cannot pass through the convex member 9 and interferes with the holder 8. As a result, the further fall of the tongue plate 3 is prevented. For the sake of convenience, in Fig. 3, the illustration of the adhesive member 10 is simplified (the base material 12 and the adhesive layer 13 are omitted).

[0022] Also, the adhesive member 10 has a certain length dimension along the longitudinal direction of the webbing belt 4, thereby increasing the range for receiving the load (pressure) of the tongue plate 3 on the convex member 9, so that the load (pressure) of the tongue plate 3 can be dispersed and the pressure resistance can be enhanced.

[0023] In addition, since the convex member 9 is arranged at a substantially central position on the webbing belt 4, away from the front end portion 10a and the rear end portion 10b of the adhesive member 10, it is possible to prevent the convex member 9 from being peeled off due to the interference of the tongue plate 3. Furthermore, by making the entire surface of the convex member 9 adhesive, it is possible to suppress the occurrence of displacement of the convex member 9 with respect to the webbing belt 4 and the adhesive member 10 during the interference of the tongue plate 3.

[0024] As described above, the tongue plate 3 slip-off prevention device in this embodiment is a tongue plate 3 slip-off prevention device provided in a vehicle seat belt device 1, and integrally comprises an adhesive convex member 9 placed on the webbing belt 4 provided in the seat belt device 1, and an adhesive member 10 that is attached to the webbing belt 4 with the convex member 9 interposed therebetween. Furthermore, the convex member 9 is sandwiched between the webbing belt 4 and the adhesive member 10 at positions excluding the front end 10a and rear end 10b of the adhesive member 10 along the longitudinal direction of the webbing belt 4.

[0025] With the tongue plate 3 slippage prevention device of this embodiment, there is no need to fix the tongue stopper using a dedicated device, unlike conventional button-type tongue stoppers composed of a first button and a second button.

[0026] Furthermore, conventional tongue stoppers, which consist of a first and second button, are made of a rigid material and can be damaged by getting caught in the door, but by adopting a flexible convex member 9, damage and scratching of the vehicle door can be prevented. In addition, since it can be easily installed by the user, manufacturing and installation costs can be kept low. Moreover, even if the adhesive member 10 deteriorates over time, it can be easily replaced. In other words, the effort and cost of repair work can be reduced.

[0027] Various materials can be selected as the base material for the adhesive member 10. For example, plastic films such as polypropylene, polyester, and polyvinyl chloride, paper materials such as kraft paper, and fabric materials such as cotton and polyester cloth can be used.

[0028] The tongue plate 3 slippage prevention device described herein is not limited to the embodiments described herein, and can be modified as appropriate without departing from the spirit of the invention. For example, a substantially hemispherical convex member 9A may be adopted, as shown in the modified example in Figure 4. [Industrial applicability]

[0029] According to the present invention, the tongue plate can be prevented from slipping down with a simple configuration. [Explanation of Symbols]

[0030] 1. Seat belt device 3 Tongue Plate 4. Webbing belt 9,9A Convex member (device to prevent slippage of the tongue plate) 10. Adhesive material (device to prevent tongue plate from slipping)

Claims

1. A device to prevent slippage of the tongue plate of a seat belt system installed in a vehicle, A flexible, elastic, and adhesive convex member is placed on the webbing belt of the aforementioned seat belt device, A tongue plate slip-prevention device comprising a flexible adhesive member for fixing the convex member to the webbing belt, which is attached to the webbing belt with the convex member interposed therebetween.

2. The tongue plate slippage prevention device according to claim 1, wherein the convex member is sandwiched between the webbing belt and the adhesive member at positions excluding the front and rear ends of the adhesive member along the longitudinal direction of the webbing belt.

3. In the adhesive member, a non-adhesive region is formed on a part of the surface on which the adhesive layer is formed, where the adhesive layer is not formed. The tongue plate slip-off prevention device according to claim 1 or 2, wherein the non-adhesive area is exposed to the outside air from the rear end of the adhesive member.

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