JPH0345886Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a webbing protector used in a seat belt device for protecting vehicle occupants.

[Background technology]

In the seat belt device, an occupant restraining webbing is attached to the occupant, and this webbing is configured to restrain the occupant in the event of a vehicle emergency.

This webbing has a portion attached to the vehicle body that is wrapped around a webbing locking member such as a tongue plate or an anchor plate and then folded back, and a webbing protector for protecting the webbing is attached to this folded portion.

This webbing protector is generally configured to be held to a webbing locking member such as an anchor plate by a winding part of the webbing.
Before the webbing is attached, it has a structure that makes it easy to fall off. Therefore, when automating the attachment of the webbing protector and webbing to the locking member, there is a possibility that the protector may fall off from the locking member before the webbing is attached to the locking member, which may hinder automation of assembly. Become.

[Purpose of invention]

The present invention has been made in consideration of the above facts, and an object of the present invention is to provide a webbing protector that can reliably attach the webbing protector to the locking member and prevent it from falling off even before the webbing is attached to the locking member.

[Summary of the idea]

The present invention is a webbing protector that is attached to a webbing locking member, a part of which is attached to a vehicle body and has a hole for wrapping and folding the webbing, and on which the webbing is locked, the webbing protector comprising: It has an opening for insertion and placement from the hole into a site opposite to the attachment site to the vehicle body, and a protrusion provided on a surface opposite to the opening and protruding toward the opening. , both ends of the webbing locking member located in the wall thickness direction are deformed into a curved shape as a whole by receiving a pressing force in the protruding direction of the protrusion, and are fixed to the opposite side portion of the webbing locking member. It is characterized by being possible.

The operation of the present invention will be explained through the attachment of the webbing protector to the webbing locking member.

Since the webbing protector is provided with an opening, the webbing protector is inserted through the hole of the webbing locking member and placed at a location opposite to the location where the webbing locking member is attached to the vehicle body. In this state, the protruding end portion of the protrusion provided on the webbing protector is in contact with the inner peripheral surface of the hole of the webbing locking member on the side opposite to the attachment portion.

Next, a pressing force is applied to both ends of the webbing protector located in the thickness direction of the webbing locking member in the direction in which the protrusion protrudes. This results in
The opening side edges of both ends of the webbing protector are pressed and fixed to the opposite side of the webbing locking member to the vehicle body, and are attached to the protrusion of the webbing protector in the opposite direction to the protruding direction. Since the pressing force in the direction is applied, the protrusion is protruded in the opposite direction to the protrusion direction. Therefore, the webbing protector is deformed into a curved shape as a whole and is fixed to the part opposite to the part where the webbing locking member is attached to the vehicle body.

The webbing protector attached to the webbing locking member in this manner is securely fixed to the webbing locking member, and the webbing protector will not fall off from the webbing locking member before the webbing is attached to the webbing locking member.

Moreover, the webbing protector can be fixed to the webbing locking member by simply applying a pressure contact force in the protruding direction of the protrusion to both ends of the webbing locking member in the thickness direction of the webbing protector, so that the webbing protector can be fixed to the webbing locking member. It is easy to attach and can contribute to automation of the assembly process.

In addition, when the webbing protector is fixed to the webbing locking member, it is deformed into a curved shape as a whole, so in this state, the webbing is wrapped around the hole in the webbing locking member and folded back to the webbing locking member. When locked, the contact surface between the webbing surface and the webbing protector has a curved shape. Therefore, even when the part of the webbing that is wrapped around the webbing locking member rotates due to a change in the posture of the occupant after wearing the webbing, the webbing smoothly slides on the webbing protector. Therefore, the occurrence of fuzzing of the webbing is significantly reduced, so that the durability of the webbing can be improved. As a result, the occupant restraint performance of the webbing can be maintained at a high level.

Furthermore, when the webbing protector is fixed to the webbing locking member in a U-shape, for example,
The webbing is subjected to a relatively large tensile force in the direction of tearing at each corner of the webbing protector, but according to the present invention, the webbing protector has a curved shape when the webbing protector is fixed to the webbing locking member. Because of the deformation, the webbing receives the above-mentioned tensile force only at the curved end opposite to the opening of the webbing protector. Therefore, the durability of the webbing can be improved from this point as well.

[Example of idea]

1 to 4 show a state in which a webbing protector 40 to which the present invention is applied is attached to an anchor plate 42 as a webbing locking member.

As shown in FIG.
2 is formed by punching out a substantially equilateral triangular shape from a thick plate material, and a long hole 14 formed at one end is for the occupant restraint webbing 16 to be wrapped around and folded back. Further, a circular hole 44 is formed at the other end of the anchor plate 42, and serves as a through hole for a screw bolt when attaching to the vehicle body.

As shown in FIG. 3, the webbing protector 40 is formed into a long shape by bending a thin metal plate, and a center portion of the webbing protector 40 is provided on the side opposite to the opening side. A protrusion 46 as a protrusion is formed along the longitudinal direction of the webbing protector 40. This protrusion 46 is
It protrudes toward the opening side of the webbing protector 40. For this reason, webbing protector 4
0 has a substantially E-shaped longitudinal cross section before being attached to the anchor plate 42.

FIG. 2 shows the state of the webbing protector 40 after being pressed, and in this state, the webbing protector 40 has a C-shaped longitudinal cross section. In this state, the arcuate surface of the webbing protector 40 faces toward the circular hole 44 of the anchor plate 42, and both ends on the opening side (both ends on the pressure contact side) face the circular hole 44 of the anchor plate 42.
and is directed to the opposite side.

The operation of this embodiment will be explained below.

The work of attaching the webbing protector 40 to the anchor plate 42 is automatically performed using a dedicated machine.

First, as shown in FIG. 4, the webbing protector 40 is inserted into the elongated hole 14 of the anchor plate 42 from its opening side, so that the opening side of the webbing protector 40 faces opposite to the circular hole 44 of the anchor plate 42. will be placed in In this state, both ends of the webbing protector 40 are located on the front and back sides of one side of the anchor plate 42 opposite to the circular hole 44, and the protrusion 46 is in contact with the inner peripheral surface of the elongated hole 14.

In this state, a pressing force is applied to both ends of the webbing protector 40 in the direction of arrow A in FIG. As a result, both ends of the webbing protector 40 are pressed against the front and back sides of the anchor plate 42. At this time, a pressing force is applied to the protrusion 46 in the direction opposite to the direction in which the protrusion 46 protrudes, so that the webbing protector 40 after pressure contact is deformed into a substantially C-shaped longitudinal cross section as shown in FIG. That will happen.

After the webbing protector 40 is attached to the anchor plate 42, the webbing protector 4
The middle part of the webbing 16 is wrapped around the webbing 16 and folded back. Thereafter, the folded ends of the webbing 16 are sewn, and the webbing 16 is attached to the anchor plate 42 as shown in FIG.

As described above, in this embodiment, by pressing the webbing protector 40, which has a substantially E-shaped cross section perpendicular to the longitudinal direction, in the state before assembly, the webbing protector 40 can be attached to the webbing protector 40 in the state after assembly.
Since the webbing protector 40 is fixed to the anchor plate 42 while the longitudinal orthogonal cross section of the webbing protector 40 is C-shaped, the webbing protector 40 can be reliably fixed to the anchor plate 42. Therefore, before assembling the webbing 16 to the anchor plate 42, the webbing protector 40
will not fall off. Moreover, since it is only necessary to press the parts together, automated assembly becomes easy.

In addition, the webbing protector 40 after assembly is C
Since the surface of the webbing 16 and the contact surface of the webbing protector 40 have a curved shape, the portion of the webbing 16 that is wrapped around the anchor plate 42 may be bent due to changes in the posture of the occupant after the webbing is attached. Even when rotating, the webbing 16 can be smoothly slid along the arcuate surface of the webbing protector 40. Therefore, the webbing 16 is prevented from fuzzing, and the durability of the webbing 16 can be improved. As a result, the occupant restraint performance of the webbing 16 can be maintained at a high level.

Furthermore, since the webbing protector 40 is C-shaped, the relatively large tensile force acting on the webbing 16 in this part only acts on the curved end located on the opposite side of the opening of the webbing protector 40. From this point of view, webbing 1
6 can be improved.

Note that in this embodiment, the webbing protector 4
0 is attached to the anchor plate 42,
The present invention is not limited to this, and can also be applied to attachment to other locking members.

[Effect of idea]

As explained above, the webbing protector according to the present invention is superior in that the webbing protector does not fall off from the webbing locking member before the webbing is attached to the webbing locking member, and furthermore, assembly by automation is facilitated. have an effect.

Moreover, since the webbing protector after attachment has a curved surface shape, the webbing can be smoothly slid along the curved surface of the webbing protector. Therefore, the occurrence of fuzzing of the webbing is significantly reduced, so that the durability of the webbing can be improved.

Furthermore, since a relatively large tensile force in the direction of tearing the webbing is received only at the curved end of the webbing protector on the opposite side to the opening, the durability of the webbing can be improved from this point as well.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an anchor plate to which a webbing protector according to this embodiment is attached;
Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
FIG. 4 is a perspective view showing a state before the webbing protector shown in the figure is pressed against the anchor plate, and FIG. 14...Long hole (hole), 16...Webbing, 4
0...Webbing protector, 42...Anchor plate, 46...Protrusion (protrusion).

Claims (1)

[Scope of utility model registration request] A webbing protector is attached to a webbing locking member that is partially attached to the vehicle body and has a hole for wrapping and folding the webbing, and the webbing protector is attached to a webbing locking member in which the webbing is locked. The webbing retainer has an opening for insertion into a site opposite to the attachment site to the vehicle body, and a protrusion provided on a surface opposite to the opening and protruding toward the opening. When both ends of the locking member located in the wall thickness direction receive a pressing force in the protruding direction of the protrusion, the entire end portion is deformed into a curved shape and can be fixed to the opposite portion of the webbing locking member. A webbing protector characterized by: