JPH0523219B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an improvement in a vehicle seat belt device that prevents the engine of a vehicle, particularly an automobile, from starting unless the seat belt is fastened.

[Prior art and its issues]

Although seatbelts are now required by law, they are not enforced and are considered cramped and troublesome. However, research has shown that more than 80% of people who died in traffic accidents while riding in a car would have survived if they had fastened their seatbelts, and based on this data, the use of seatbelts must be further promoted. Must be. Conventional seatbelt devices have not been sufficient to ensure that the seatbelt is worn thoroughly, as the vehicle can still move without the seatbelt being fastened. The solution to this problem was published in Japanese Patent Application Laid-Open No. 57-167846.
It is disclosed in the publication. This seatbelt device is equipped with a switch at the back end of the receiving metal fitting, and when the locking plate is not inserted into the receiving metal fitting, that is, when the seat belt is not fastened, the above switch is turned OFF.
The starter motor does not operate even if the key switch is turned on. However, when the locking plate is inserted into the receiving metal fitting, that is, when the seat belt is fastened, the tip of the locking plate pushes the switch, turning it on and activating the starter motor. According to the above-mentioned seat belt device, it is possible to prevent the vehicle from traveling without wearing a seat belt. However, the following problem arises. In addition to the normal seat belt device, parts such as a switch are required, which increases the cost accordingly. Manufacturing is complicated because the switch is located at the far end of the metal holder. In addition, the switch is operated at the tip of the locking plate,
Moreover, since the locking plate is pushed in with a relatively strong force, if the switch is not placed in an accurate position, there is a risk that the switch will not operate or that the switch will be destroyed. If the switch fails, the engine cannot be started. Furthermore, Japanese Patent Application Laid-Open No. 59-92234 discloses that a connecting fitting serving as an insertion member has a conductive hook,
A cord is connected to this connecting fitting, and on the other hand,
A seatbelt warning device is disclosed that includes a belt switch in which a terminal constituting an electric circuit is connected to a connecting metal fitting serving as a receiving member. The connecting fittings that make up this belt switch are electrically conductive, so the entirety is a live part.
Moreover, because it is exposed, there is a risk of electric shock for passengers and malfunction for those with heart base manufacturers. In addition, the side that becomes the insertion member is attached to the seat belt, and when the seat belt is used, it is pulled out and bent violently over a considerable range, and a tensile force is applied, so the cord connected to the connecting fitting may be damaged. However, since the base side of the seat belt has a winding structure, it is troublesome to connect it to the electric circuit of the vehicle body, and although it is theoretically possible to manufacture it, it is not practical.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle seat belt device that does not require parts such as a switch, has a simple structure, and is accurate in operation. Another object of the present invention is to provide a vehicle seat belt device that prevents accidents such as electric shock. Still another object of the present invention is to provide a vehicle seat belt device that can withstand long-term use.

[Structure of the invention]

The configuration of the present invention taken to achieve the above object is as follows. That is, the present invention is a seat belt device for a vehicle that prevents the engine from starting unless the seat belt is fastened, and this seat belt device includes an insertion member provided on the seat belt side and a case. and a receiving member to be fixed, the insertion member having a conductive hook, and the receiving member having at least a hook and an insertion guide in the case. ,
Terminals constituting an electric circuit are connected to the above-mentioned latching tool and the above-mentioned insertion guide, and the connection between the above-mentioned latching tool and the above-mentioned insertion guide is electrically disconnected when the above-mentioned latching member is not inserted. When the latching member is inserted, the latching member and the insertion guide are electrically connected to each other via the latching member, so that the vehicle engine can be started. It is a device.

【Example】

The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a partially cutaway exploded perspective view of one embodiment, and FIG. 2 is a partially transparent perspective view of the device when it is installed. Symbol A indicates a seat belt device,
It includes a receiving member 1 that is attached to the vehicle body with a wire W, and an insertion member 2 to which a seat belt B is connected. The receiving member 1 and the inserting member 2 have substantially the same structure as a general seat belt device. The receiving member 1 includes a base metal 11, a latch 12, and a receiving member 1.
9, and a case 10. The base metal 11 is a metal plate that is substantially rectangular in plan view, and one end of a wire W, the other end of which is attached to the vehicle body, is attached to the rear part. Both left and right ends of the front side of the base metal 11 are bent into an upper inner concave shape to form an insertion guide 110. Further, a latch receiving member 111, which is slightly narrower than the width of the base metal 11, is formed at the tip of the base metal 11 so as to wrap the plate body inward. The latching tool 12 has a U-shape in plan view, and a latching claw 13 is formed in the center of the upper surface, and a leaf spring 112 is formed on the lower surface.
It is equipped with Then, with the latching release piece 14 side facing backward, the latching release piece 14 is flipped upward diagonally by the leaf spring 112, and the latching tool receiving member 11
It is embedded in 1. Note that the hook 12 and the insertion guide 110 are insulated and normally do not come into contact with each other. The latch 12 and the insertion guide 110 are provided with terminals 101, which are part of the circuit of the automobile's electrical system.
102 are connected to each other. In addition, a receiver 19 is provided behind the latch 12 of the base metal 11.
is installed. Return springs 18 are provided on both sides of the receiver 19 (shown in FIG. 2), and the return springs 18 are fitted into the insertion guide 110. In addition, since the plate spring 112 of the latch 12 is arranged so as to touch the front end of the receiver 19, the latch 12 will not shift rearward even if a latch 21, which will be described later, is inserted. These are housed in a case 10. In addition, the release button 15 provided on the case 10
The lower part of the holder is in contact with the latching release piece 14 of the latching tool 12. The insertion member 2 consists of a latching body 21 in which a latching hole 22 of a size compatible with the latching claw 13 is formed in the center, and a seatbelt attachment part 23. is installed. FIG. 3 is an electrical system diagram of an automobile showing the installation position of this embodiment. Terminals 101 and 102 in the seat belt device A according to this embodiment are arranged between the starting switch and the starting motor (in the drawing). When starting a car, the seat belt device A is first put on. When the latching body 21 is attached to the receiving member 1 side, the latching body 21 is attached to the latching tool 12 and the insertion guide 110.
The terminal 101 and the terminal 102 are placed in a energized state via the hook 21. According to this, if the seat belt device A is not worn and energized at the time of starting, the starter motor will not be driven even if the start switch is turned on, and the engine will not start, but the radio, alarm, etc. will not be activated. Operate. Furthermore, even if the seat belt device A is removed for some reason while the vehicle is running, the engine will not stop and there will be no problem with the vehicle running. Note that terminals 101 and 10 of seat belt device A
The installation location in 2 is not limited to , and may be anywhere as long as the engine will not start unless the seat belt device A is attached; however, even if the seat belt device A is removed after the vehicle has started, it will not affect the running of the vehicle. Location is preferred. Further, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims.

【Effect of the invention】

The present invention has the above configuration and has the following effects. (1) It has an insertion member provided on the seat belt side, and a receiving member having a case and fixed to the vehicle body side, and the insertion member has an electrically conductive hook, and The receiving member has at least a hook and an insertion guide inside the case, and terminals constituting an electric circuit are connected to the hook and the insertion guide, respectively. Thus, the connection between the latch and the insertion guide is electrically disconnected when the latch is not inserted, and when the latch is inserted, the electricity between the latch and the insertion guide is connected via the latch. The vehicle engine is now connected and can be started. In other words, since the hook itself for attaching the seat belt functions as a switch, no separate parts such as a switch are required. In addition, there are no moving parts as a switch, and it has a simple structure that is almost the same as a conventional seat belt device.Moreover, it is electrically connected simply by inserting the catch into the receiving member, so it operates accurately. We can provide seat belt devices for vehicles. (2) Since the latching device and insertion guide, which are live parts, are built into the case, there is no risk of electric shock to the occupants or malfunction of the pacemaker. (3) Since the electrical components are grouped together on the receiving member side that is fixed to the vehicle body, connection to the vehicle body's electrical circuit is easy. Furthermore, since the seat belt, which is violently bent while being pulled out and subjected to tensile force during use, does not have any electrical components, the cord will not be damaged and can withstand long-term use.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a partially cutaway exploded perspective view of one embodiment, FIG. 2 is a perspective view of the embodiment when it is installed, and FIG. 3 is a diagram showing the arrangement of the embodiment. FIG. 2 is an electrical diagram of the vehicle showing the location. 1: Receiving member, 2: Insertion member, 12: Hanging tool, 2
1: Latching body, 110: Insertion guide.

Claims (1)

[Claims] 1. A seat belt device for a vehicle that prevents the engine from starting unless the seat belt is fastened, and this seat belt device includes an insertion member 2 provided on the seat belt side and a case 10. The insertion member 2 has a receiving member 1 fixed to the vehicle body side, and the insertion member 2 has a hooking body 21 having conductivity.
The receiving member 1 has at least a hook 12 and an insertion guide 110 inside the case 10, and the hook 12 and the insertion guide 110 include:
The terminals constituting an electric circuit are connected to each other, and the connection between the latching tool 12 and the insertion guide 110 is electrically disconnected when the latching member 21 is not inserted. 21, the latching tool 12 and the insertion guide 110 are electrically connected via the latching member 21, so that the vehicle engine can be started.