JPS5931486Y2 - Automobile seat belt - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in automobile seat belts.

In general, cars are designed to protect occupants from shocks such as rear-end collisions that occur while driving.
Each seat is equipped with a seat belt.

Conventionally, this type of seatbelt includes a two-point seatbelt called a lap belt or lap belt, a diagonal seatbelt (also called a shoulder belt), or a three-point seatbelt that is a combination of both. is generally known.

Among these, three-point seat belts have particularly excellent occupant protection performance in the event of a collision, and are also highly neutral, so they can be said to be the ideal seat belt system at present.

By the way, if we consider how each of these types of seatbelts protect occupants during a collision, no matter which type of seatbelt they are in, the protection they provide mainly protects against the impact (load) in the forward direction (direction of travel). ), the structure is such that it can exert a restraining action on the occupant.

Therefore, for example, while driving or stopped,
In the case of a rear-end collision from another vehicle, that is, in the case of an impact in the opposite direction to the forward impact described above, the restraining effect cannot be expected to have much of a protective effect on the occupants.
Therefore, the shock to the occupant caused by the rear-end collision was mainly absorbed by the seat back.

However, in general automobiles, etc., there is an adjustment mechanism that adjusts the tilting angle of the seat back according to the body shape of the occupant, so if the vehicle is subject to a relatively strong impact, such as a rear-end collision at high speed, In such a case, the seat bank alone will not be able to absorb the rearward load of the occupant caused by the impact, and the seat bank, which was positioned in the proper position by the aforementioned adjustment mechanism, will suddenly become The mirror tilts backwards, and at the same time, the occupants are often thrown backwards and injured.
Accidents like this greatly depend on the speed and weight of the vehicle that rear-ends you, and of course become more noticeable as the speed increases.

Furthermore, rear visibility for passengers while driving can only be confirmed through the rearview mirror or fender mirror, and most rear-end collisions that occur while driving at high speeds are difficult for the driver to predict, making the injuries to the occupants even more serious. There is.

Therefore, it is necessary to take some kind of protective measures to minimize injury to the occupants even in the event of a rear impact caused by such an accident.

The present invention was developed with these points in mind, and is an automobile seat that can sufficiently protect the occupant from not only frontal impacts but also rearward impacts. It provides belts.

The automobile seat belt according to the present invention is an automobile seat belt that restrains an occupant to the seat by a heddle and protects the occupant from the impact of a collision, and a seat back that suppresses the backward movement of the seat hack of the seat. A belt for use is further provided.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the automobile seat belt according to the present invention, as shown in FIGS. 1 and 2, a waist belt 1 restrains the waist of an occupant M, and the waist belt 1 is also strapped over the upper torso of the occupant M from the shoulder to the chest to restrain the occupant. A shoulder belt 2 is provided diagonally as shown in FIG. A so-called three-point seatbelt consisting of anchorage inner metal fittings 4 and 5 (the parts are removable) and connectors 6 and 7 at the same positions as the shoulder belts 20 and both ends of this three-point seatbelt, respectively. and the waist belt 1 and the shoulder belt 20
It is constituted by a seatback belt 9 that restrains the seatback 8 from a direction opposite to the direction in which the combination is being restrained.

Nylon, polyester, vinylon, etc. are usually used as materials for webbing.

The operation of the automobile seat belt according to the present invention constructed as described above will be explained below.

FIGS. 2a and 2b are a side view and a plan view showing how the seat belt in an automobile according to the present invention is worn, and the side line portion in the figure shows the newly added seatback belt 9.

Now, in this state, if a rear-end collision occurs from behind with, for example, a relatively large impact amount V, as shown in Fig. 3,
A reaction load corresponding to the impact amount V of the rear-end collision acts on the occupant M, and the occupant M tries to rapidly move rearward together with the seat back 8.

However, the seatback belt 9 provided to prevent the rearward movement of the seatback 8 acts to suppress the rearward movement of the seatback 8 within a certain range.

In this way, in the car seat belt according to the present invention, the seat back belt 9 suppresses the backward movement of the seat back 8 within a certain range and absorbs the impact, so that in the event of a rear-end collision, However, it can perform its protective function without causing any injury to the occupants.

In addition, for frontal impact, waist belt 1 and shoulder belt 2 are used.
The occupant is restrained and protected by the so-called three-point seatbelt section based on the zero combination, as in the conventional case.

Furthermore, the seatback belt 9 mentioned above is provided diagonally so as to be supported at the rear of the seatback 8, so it is not located in front of the occupant, and may not be visible when driving the car, for example. It is possible to perform the operations necessary for the operation in the same manner as before.

As mentioned above, in the automobile seat belt according to the present invention,
By adding a seatback belt to the shoulder belt of a conventional three-point seatbelt to suppress rearward movement of the seatback, which is an extremely effective and simple measure, it is possible to reduce the impact not only from the front but also from the rear. It can sufficiently protect the occupants against impact,
Of course, it also has excellent advantages such as being inexpensive to manufacture.

It goes without saying that the automobile seat belt according to the present invention is not limited to the above-mentioned three-point seat belt, but can also be broadly applied to two-point seat belts, diagonal seat belts, and the like.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the automobile seat belt according to the present invention, Fig. 2a is a side view showing the state in which the automobile seat belt according to the embodiment is worn, FIG. 3 is a side view for explaining the operation of the automobile seat belt according to the same embodiment. 1... Waist hold, 2... Shoulder bell), 3
．． 9... Seat back belt, 4.5...
...Anchorage fittings, 6,7...Connector, 8...Seat back.

Claims (1)

[Scope of utility model registration request] In a three-point automobile seatbelt that combines a waist belt and a shoulder belt, the seatback belt, which has a tilt angle adjustment mechanism and restrains the rearward tilting of the seatback in the event of a rear-end collision, is integrated between the connectors of the shoulder belt. An automobile seat belt characterized by being attached to.