JP4924826B2 - Seat belt mounting device - Google Patents

Description

  The present invention relates to a seat belt mounting device attached to a vehicle, and more particularly to a seat belt device that facilitates mounting of a seat belt and prompts a passenger to mount the seat belt.

  Traditionally, vehicles have been equipped with seat belts to protect passengers in the event of a collision. However, since it is now mandatory to use seat belts when boarding a vehicle, the vehicle engine must be installed without seat belts. When is activated, a method of urging the passenger to wear a seat belt or notifying that a seat bell is not worn by lighting a warning lamp or generating an alarm sound is common.

Problems to be solved by the invention

  However, in such a method of prompting the wearing of the conventional seat belt and warning that it is not worn, the passenger twists the body and grips the seat belt wound and stored on the vehicle body side by the pretensioner, There is a series of annoyances that the tongue must be fixed to the buckle while pulling out the seat belt from the car body storage part, ignoring the warning sound and lighting of the warning lamp, and driving the car without wearing the seat belt However, there are problems such as losing time, and wearing a seat belt is not easy for a handicapped person and takes time.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a seat belt mounting apparatus that facilitates the mounting of the seat belt and promotes the mounting more reliably.

Means for solving the problem

In order to achieve the above object, as shown in claim 1 of the present application, a bag layer capable of sealing air can be bonded to a conventional seat belt, or gas can be sealed inside by using two seat belts. A bag layer is provided, and the bag layer is separated into two in the vehicle body side direction where the seat belt is attached with the vicinity of the tongue as a boundary, and on the vehicle body side where the seat belt is attached. Are connected to pumps capable of blowing and discharging gas, respectively, in a bag layer bonded to a seat belt.
A tube for blowing and sucking gas is connected to this pump, and an open portion that is the tip of the tube passes through the bag layer and reaches the vicinity of the tongue that is the end of the bag layer.

  From this state, each pump detects the seating of the occupant on the seat or the engine start signal, and starts to blow and inflate into the bag layer to counter the force of the pretensioner. Pull out from the car body storage part and harden the seat belt by raising the internal pressure of the bag layer to form a triangle with the tongue part as the apex of the boundary between the two bag layers, boarding the tongue The passenger can easily insert the seat belt tongue into the buckle and fix it by crossing in front of the passenger toward the buckle.

  When the tongue is inserted into the buckle and fixed by the passenger, the signal is detected and each pump starts to discharge the air filled in the bag layer, softening the seat belt and hindering driving Fit the passenger's body so that they will not become seated and complete the seat belt installation. As a result, the occupant is surely prompted to install the seat belt and at the same time can easily install the seat belt.

The invention's effect

  According to the present invention, the seating of the occupant's seat or the start of the engine is detected, and the blowing of the pump is automatically started to harden the seat belt and to be positioned in front of the occupant. Therefore, when the seatbelt is not installed, the seatbelt located in front of the seatbelt interferes with the seatbelt and prompts the user to install the seatbelt. There is no need to bother to pull it out and fix it to the buckle. This makes it easy to attach the seat belt and urge it reliably.

Embodiment of the Invention

  Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings. FIG. 1 is a view showing a state of a seat belt mounting apparatus according to an embodiment of the present invention, and FIG. 2 is a partial cross section of the seat belt. FIG. 3 shows a state where the seat belt is mounted.

  In FIG. 1, 7 is a vehicle seat, 8 is a passenger, and 1 is a buckle for fixing a tongue 3 inserted through the seat belt 2. The seat belt 2 is fixed to a seat belt pretensioner 4 and a seat belt vehicle body attachment portion 5 of the vehicle body 9. When the passenger is not seated on the seat 7 or when the seat belt is not used, the seat belt 2 is housed inside the vehicle body by the seat belt pretensioner 4 and the tongue 3 inserted through the seat belt 2 is used. Is located on the side of the vehicle body.

As shown in a partial cross section in FIG. 2, the seat belt 2 is provided with a bag layer 2b made of an elastic body in accordance with the width of a general seat belt fabric 2a.
The seat belt fabric 2a is made of the same material as the conventional one having a small elasticity, while the layer 2b of the attached bag may be made of the same material as 2a so that the gas can be sealed. If it is made of a rubber-based material with high airtightness, a greater effect can be obtained.
Further, the bag layer 2b is not bonded to the seat belt fabric 2a, but the seat belt fabric 2a may be formed in two layers and sandwiched between them.
The bag layer 2b is connected to the pump 6a of FIG. 1 attached to the vehicle body side, and the other end of the bag layer extends to the position of the tongue 3 and is closed. The bag layer 2b is provided adjacent to the seat belt pretensioner 4 side along the width of the seat belt with the tongue 3 as a boundary, and the second bag layer 2c is formed from the vicinity of the tongue 3 Along the width of the seat belt toward the seat belt vehicle body side attachment portion 5, it is connected to the pump 6b.

Pumps 6a and 6b capable of blowing and discharging gas are respectively attached to the seat belt pretensioner 4 in which the seat belt 2 is accommodated and the seat belt vehicle body side attachment portion 5 to which the seat belt 2 is fixed. The tube 6 shown in FIG. 2 is connected to the pump 6 a attached to the seat belt pretensioner 4, and the opening 10 a of the tube 10 penetrates the inside of the bag layer 2 b attached to the seat belt 2. And it is extended to the vicinity of the tongue 3 used as the edge part of the said bag.

When the occupant 8 is seated on the seat 7 from this state, the pumps 6a and 6b start operation, and the pump 6a starts to blow air from the opening 10a into the bag layer 2b through the tube 10 and The seat belt 2 is pulled out from the pretensioner 4 by gradually inflating from the portion 3. The pump 6b disposed in the seat belt vehicle body mounting portion 5 also blows gas to the bag layer 2c, thereby curing the seat belt 2 by air pressure, attaching the seat belt pretensioner 4 and the seat belt vehicle body with the tongue 3 at the top. A triangle connecting the three points of the part 5 is formed.
Although not shown, the pretensioner 4 may be equipped with a motor for sending out the seat belt earlier when the stored seat belt is pulled out.

From this state, the seat belt 2 is pulled out from the pretensioner 4 while maintaining a triangular shape, and the tongue 3 which is the apex moves in the order of 3b and 3c shown by dotted lines in FIG. Cross and approach the direction of buckle 1. Thereby, the passenger 8 can easily grasp the tongue 3 and insert and fix it to the buckle 1. When the tongue 3 is fixed to the buckle 1, the pumps 6 a and 6 b that have detected the signal are discharged by the gas filled in the bag layers 2 b and 2 c shown in FIG. The seatbelt is completely attached to the passenger's body.

It is a figure which shows the state of the seatbelt mounting apparatus which shows the example of embodiment of this invention. It is principal part sectional drawing which shows the detail of the seatbelt of FIG. It is a figure which shows the state which mounting | wearing of the seatbelt of FIG. 1 was completed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buckle 2 Seat belt 2a Seat belt fabric 2b Bag layer 2c Bag layer 3 Tongue 4 Seat belt pretensioner 5 Seat belt body attachment 6a Pump (pretensioner side)
6b Pump 7 Seat 8 Passenger 9 Car body 10 Tube 10a Opening (tube)

Claims (5)

  In a three-point seat belt mounted on a car, a bag layer is provided along the width of the seat belt so as to be filled with gas and sealed, and the bag layer is inserted into the seat belt. The seat belt is separated and separated into two independent bag layers toward the two locations on the side of the vehicle body where the seat belt is fixed and stored, with the vicinity of the tongue as a boundary. Are connected to pumps for filling and discharging gas to and from the two layers of the previous period, and when the passenger sits on the seat, the two pumps are activated and gas is discharged to the two layers of the previous period. By starting the air blowing and raising the internal pressure, the seat belt is cured against the pretensioner force while forming a triangle with the tongue of the seat belt as a vertex. Pull out from the storage part on the body side and bring the tongue closer to the buckle direction to make it easier to fix the tongue and buckle. A seatbelt mounting apparatus characterized in that a seatbelt is softened and closely adhered to a passenger's body by discharging the filled gas.   The seatbelt mounting device according to claim 1, wherein the pump for filling the bag layer along the width of the seatbelt with gas passes through the bag layer and in the vicinity of the bag buckle. A tube with an open part is connected to the seat belt, and when gas is blown, the seat belt starts to expand from the buckle side of the bag layer attached to the seat belt, and the seat belt is pulled out from the vehicle body storage part. Seat belt wearing device.   The seatbelt mounting device according to claim 1, wherein when a gas is filled into a bag layer provided along the width of the seatbelt by a pump, the seatbelt housed inside the vehicle body by a pretensioner is installed. A seat belt mounting apparatus comprising a motor that is pulled out from the vehicle body side.   2. The seat belt mounting apparatus according to claim 1, wherein the layer of the bag provided along the width of the seat belt is made of an elastic body capable of expanding and contracting with gas sealed. apparatus.   2. The seat belt mounting device according to claim 1, wherein when the weight when the occupant is seated on the seat or the start signal of the engine is detected, the respective pumps automatically start the gas blowing, and the tongue is buckled. The seatbelt mounting device characterized in that the pump discharges gas from the bag layer when it is detected by a signal that it is fixed to the bag.

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