JPH0214523Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a three-point seat belt that locks the belt body, which is stretched vertically on the vehicle body at the side of the vehicle interior, to a buckle provided in the center of the vehicle interior. The present invention relates to a tongue plate, and particularly relates to a tongue plate that is slidably attached to a belt body.

A three-point seat belt consists of a belt body consisting of a shoulder belt and a waist belt, one end of which is fixed to the vehicle body and the other end of which is constantly wound up by a winding device, and is placed on one side of the seat. The belt body is stretched in the vertical direction, and the tongue plate is slidably supported by the belt body by inserting the belt body into the opening-shaped through portion of the tongue plate. Some seat belts have a tensioned middle section that locks onto a buckle on the other side of the seat.
Such a seat belt is widely used as a seat belt for automobiles because the lengths of the shoulder belt portion and the waist belt portion are automatically adjusted just by wearing it, and it is easy to handle.

By the way, in such a seatbelt, since the tongue plate is slidably attached to the belt body, the tongue plate may fall to the bottom of the seat when the seatbelt is not in use. Therefore, in order to prevent the tongue plate from falling like this and to hold the tongue plate in the position where it is most convenient to handle, a stopper is installed at a predetermined position in the middle of the belt body to prevent the tongue plate from falling when it falls. Some were held in that position by coming into contact with this stopper. However, in such devices, a flat plate was usually used as the tongue plate, so when in contact with the stopper, the tongue plate formed a large angle with respect to the belt body, and both ends of the tongue plate formed a large angle with respect to the belt body. The problem was that it protruded greatly from both sides.

If both ends of the tongue plate protrude significantly from the belt body in this way, when the seat belt is not used, such as when there is no passenger in the passenger seat, vibrations during driving may cause the tongue plate to rear. The edge may collide with the interior panel on the side of the vehicle, producing a harsh noise. Furthermore, the tip of the tongue plate protruding toward the passenger seat may come into contact with the passenger's shoulder or arm. For example, in a two-door car, the belt body is positioned at the rear of the vehicle body when the door is opened, and the belt body is moved in conjunction with the closing operation of the door, so as not to obstruct the passengers in the rear seats from getting on and off the vehicle. Some devices are designed to move to the side of the front seat occupant, and this is a particular problem with such devices.

From this point of view, it is desirable that the tongue plate be held substantially parallel to the belt body when supported by the stopper. To do this, for example, as shown in Japanese Patent Publication No. 54-2446 and Japanese Unexamined Patent Publication No. 50-117131, two through parts are provided in the tongue plate, and the belt body is inserted into these through parts in order. It is possible to do so. However, if you do this,
Since the belt body is curved with a large curvature, the frictional resistance between the tongue plate and the belt body becomes large, and when the belt body is wound up by the winding device, the tongue plate moves together. and will no longer be held in place. Each time the seat belt is worn, the lengths of the shoulder belt and waist belt must be adjusted.

In addition, without such an increase in frictional resistance,
As a device that can prevent the tongue plate from protruding greatly from the belt body, Jikosho
There is one such as that shown in Publication No. 57-27643.
The tongue plate shown in this publication consists of a tongue part provided along the seat-side side of the belt body, a bent plate part having a through part through which the belt body is inserted, and a side surface on the opposite side of the belt body. It is formed into a crank shape with a rear end portion provided along the . Therefore, in such a tongue plate, when an occupant tries to grasp the tongue plate and pull out the belt portion, the tongue portion is the only part that the passenger can grasp. If you try to grab the entire tongue plate, your palm will come into contact with the belt body and get rubbed. Therefore, in the case of such a tongue plate, there is a problem in that it must be operated using only the fingertips, making it difficult to handle.

The present invention was developed in view of the above-mentioned problems, and its purpose is to hold the three-point seat belt in a predetermined position along the belt body when the seat belt is not in use. At the same time, the object is to obtain a tongue plate that has a large grip part and is easy to handle.

In order to achieve this purpose, the tongue plate according to the present invention runs along the side of the belt body on the seat side and almost parallel to this when the belt body is stretched in the vertical direction and the tongue plate is supported by the stopper. a belt engaging part located on the opposite side of the belt body from the tongue part; and a guide part located above the tongue part, and the belt engages with the tongue part and the guide part. A through part is formed between the belt body and the belt body, the through part having a size large enough to allow the belt body to be inserted therethrough while being stretched in the vertical direction.

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows two tongue plates according to the present invention.
This shows an example of application to the seat belt of a door car. The seat belt retractor 1 is housed in a hollow chamber of a pillar 2 on the side of the vehicle body, for example, and is fixed to the vehicle body. One end of the belt main body 3 is locked to this winding device 1, and the belt main body 3
It is designed to constantly apply force in the winding direction. The belt main body 3 extends upward from the winding device Y, is guided into the vehicle interior through an opening 4 provided in the pillar 2, is folded back through a through anchor 5 attached to the upper portion of the pillar 2, and extends downward. . The other end of the belt body 3 is
It passes through a boot 6 rotatably attached to the vehicle body and is fixed to the lower side of the vehicle body. Of course, a rotating arm may be used in place of the boot 6, and the other end of the belt body 3 may be fixed to the tip of the arm. The boot 6 and the like are rotated in the front and rear directions by a motor 8 and the like that operate in conjunction with the opening and closing of the door 7.

With this configuration, the belt main body 3 is stretched vertically between the through anchor 5 and the tip of the boot 6 on the side inside the vehicle interior. And this part of the belt body 3
A tongue plate 9 is slidably supported at an intermediate portion of the tongue plate 9 . When the door 7 is closed, the boot 6 is in the forward rotated position as shown by the solid line in the figure, and the belt body 3 extends to the side of the seat 10, so the tongue plate 9 is easy for the occupant to handle. in position. The occupant grasps this tongue plate 9, pulls out the belt body 3 against the winding force of the winding device 1, engages the tongue plate 9 with a buckle 11 provided in the center of the vehicle interior, and secures the seat. Wear your belt. When the tongue plate 9 is removed from the buckle 11, the belt main body 3 is wound up by the winding device 1 and returns to its original vertically stretched state. When the door 7 is opened, the boot 6 rotates rearward in conjunction with the opening of the door 7, and the belt body 3 comes to be located at the rear as shown by the imaginary line in the figure. This allows sufficient space for passengers to get on and off the vehicle.

When the belt body 3 is wound up by the winding device 1, the tongue plate 9 slides smoothly on the belt body 3. In order to be able to hold the tongue plate 9 in a predetermined position when the seat belt is not in use, with the belt body 3 stretched in the vertical direction, the belt body 3 has a structure as shown in FIG. 2A. A tongue plate stopper 12 is attached. The stopper 12 is arranged so that its attachment position along the belt body 3 can be adjusted as appropriate. As shown in FIG. 2A, the stopper 12 is large enough to come into contact with the tongue plate 9 and prevent it from descending due to its own weight.

On the other hand, the tongue plate 9 has a tongue portion 9 having a plate-shaped tongue T, as shown in FIGS.
t, an upper guide portion 9g located apart on the same plane as this, and these tongue portions 9t and upper guide portions 9.
g (to the right in FIG. 2). This tongue plate 9
is made of synthetic resin such as nylon or ABS, which has relatively low friction with the belt body 3, and is molded as an integral mold in which a metal tongue T or the like is embedded. Opening-shaped through parts 9a and 9b through which the belt body 3 is inserted are formed between the tongue part 9t and the belt engaging part 9s, and between the upper guide part 9g and the belt engaging part 9s, respectively. There is. Therefore, when the belt main body 3 is inserted through these through parts 9a and 9b, the tongue plate 9
The tongue portion 9t and the upper guide portion 9g are located on the seat 10 side with respect to the belt body 3, and the belt engaging portion 9s is located on the opposite side of the vehicle body. Then, as shown in FIG. 2A, these through portions 9a, 9
b has a size sufficient to allow the belt body 3 to be inserted in a vertically stretched state.

By doing so, when the belt body 3 is stretched in the vertical direction, the tongue plate 9 has its tongue portion 9t, upper guide portion 9g, and belt engaging portion 9s on both sides of the belt body 3. They are then held in contact with each other. Therefore, as shown in FIG. 2A, the tongue portion 9t is approximately parallel to the side surface of the belt body 3, the guide portion 9g is located above it, and the belt engaging portion 9s is located on the opposite side of the belt body 3. By making contact with the sides of the belt body 3, even when the tongue plate 9 is supported by the stopper 12, the end portion thereof will not protrude significantly from both sides of the belt body 3.

In the illustrated example, the belt engaging portion 9s of the tongue plate 9 is inclined with respect to the tongue portion 9t. By doing this, when the seat belt is used, the contact area between the belt body 3 and the tongue plate 9 is reduced, as shown in FIG. 2B, and the frictional resistance between them is reduced. This makes it even easier to handle. However, because of this, the belt engaging part 9s will protrude slightly from the belt main body 3, so if there is a risk that the belt engaging part 9s will come into contact with the side of the vehicle body, part 9s to tongue part 9t
so that it is parallel to

When an occupant grasps the tongue plate 9 to fasten the seat belt, the entire portion of the belt body 3 on the seat side, including the tongue portion 9t and the upper guide portion 9g, becomes a grip portion. Therefore, the tongue plate 9 can be grasped and operated with the entire palm of the hand, making it easy to handle.

In the above embodiment, the belt body 3 of a two-door car is applied to a seat belt of the type that moves back and forth, but the tongue plate according to the present invention is not limited to this, and the belt body 3 is It is obvious that the present invention can be applied to any type of three-point seat belt that is tensioned in the vertical direction.

As described above, according to the present invention, the tongue plate is provided with a plate-shaped tongue portion located on the seat side with respect to the belt body and an upper guide portion, and the tongue plate is provided with a plate-shaped tongue portion located on the seat side with respect to the belt body, and the tongue plate is provided with a plate-shaped tongue portion located on the seat side with respect to the belt body. The engaging part is provided so that the tongue part is almost parallel to the belt body when the belt body is tensioned in the vertical direction, so even when the seat belt is not in use, the tongue supported by the stopper The plate will not protrude significantly from the belt body, and the tongue plate will not come into contact with the side of the vehicle body and generate noise. Further, even in the case of a seat belt for a two-door car shown in FIG. 1, when the belt body moves forward, the tongue plate does not come into contact with the occupant.
In addition to the tongue portion, an upper guide portion is provided on the passenger side of the belt body, so these serve as grip portions and can be easily handled. Furthermore, the through portions of the belt body provided between the tongue portion, the upper guide portion, and the belt engaging portion are large enough to allow the belt body to be inserted in a state in which the belt body is stretched in the vertical direction. Therefore, the frictional resistance between the tongue plate and the belt body is reduced, and the tongue plate can be supported at a predetermined position.

Furthermore, since the tongue portion and the upper guide portion are arranged on substantially the same plane, when the tongue plate is grasped, the tongue plate comes into contact with the palm of the hand in a flat manner. Therefore, it is easy to grasp and has a good feel. Since the belt body is located behind the surface, the belt body does not rub the palm of the hand.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a seatbelt to which the tongue plate according to the present invention is applied, and FIGS. 2A and 2B are longitudinal cross-sectional views showing one example of the tongue plate according to the present invention in different usage conditions. ,
FIG. 3 is a front view of the tongue plate, and FIG. 4 is a perspective view of the tongue plate. 1... Winding device, 3... Belt body, 5...
... Through anchor, 6 ... Boot, 9 ... Tongue plate, 9a, 9b ... Through part, 9g ... Upper guide part, 9s ... Belt engaging part, 9t ... Tongue part, 10 ... Seat, 11 ...Batsukuru, 12...
Stopper.

Claims (1)

[Claims for Utility Model Registration] One end is wound up by the winding device 1, the other end is fixed to the vehicle body, and the belt body 3 is stretched vertically on the vehicle body at the side of the vehicle interior. A buckle 11 is supported freely and at a predetermined position by a stopper 12 attached to the belt body 3, and is provided in the center of the vehicle interior.
A tongue plate 9 of a three-point seat belt, in which a seat belt is attached by engaging with the tongue plate 9; a plate-shaped tongue portion 9t located on the seat 10 side with respect to the belt body 3; It has a through part 9a through which the belt body 3 is inserted between the tongue part 9t and the belt body 3.
and a belt engaging part 9s located on the opposite side of the tongue part 9t; and a through part 9b through which the belt main body 3 is inserted between the belt engaging part 9s and and an upper guide portion 9g located above the same side as the tongue portion 9t; the upper guide portion 9g is disposed on substantially the same plane as the tongue portion 9t; and the through portions 9a, 9b. has a size that allows the belt body 3 to be inserted through the belt body 3 in a vertically stretched state; when the belt body 3 is in a vertically stretched state, the tongue portion 9t The tongue plate of a three-point seat belt is characterized by being supported almost parallel to the .