JPH0514923Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention involves attaching one end of the webbing to a retractor, fixing the retractor to the lower part of the seat cushion, and movably attaching the other end to the main part of the vehicle body. This invention relates to a passive belt device that wraps webbing around a seated person.

"Prior Art" As a conventional passive belt device, there is one shown in FIG. 4, for example.

That is, a bracket 3 is erected on the seat cushion mounting surface 2a of the seat side rail 2 of the seat slide device 1 along the side of the seat cushion to be mounted, and a retractor 5 is mounted on the erected surface 4 of the bracket 3. is tightened with a screw member 6, and one end of the webbing 7 is attached to the retractor 5.

``Problems to be solved by the invention'' However, in such a conventional passive belt device, the retractor 5 protrudes laterally from the side of the seat cushion, and the retractor 5 protrudes laterally from the side of the seat cushion, and the retractor 5 protrudes from the side of the seat cushion and other parts adjacent to the side of the seat cushion. The installation space for the bracket is limited, and the parts of the bracket 3 must be specially provided, which not only increases costs, but also because the bracket 3 is installed in a position that is disadvantageous in terms of strength, so it tends to be insufficient in strength. However, there was a problem in that the weight increased.

The present invention was developed by focusing on these conventional problems, and it can provide sufficient strength, does not limit the installation space in the area adjacent to the side of the seat cushion, and does not increase costs. The purpose of the present invention is to provide a passive belt device that is free of passive belts.

"Means for Solving the Problem" The gist of the present invention to achieve this purpose is to wrap one end of the webbing around a retractor, fix the retractor to the bottom of the seat tension, and make the other end movable. In the passive belt device, which is attached to a main part of the vehicle body in order to wrap the webbing around the seated person, the seat cushion has a substantially U-shaped cross section and protrudes downward from the side of the lower surface of the seat cushion. A support leg is provided that has a mounting surface to the seat side rail at a substantially U-shaped bottom and has a storage section formed inside, and the retractor is stored in the storage section of the support leg and pivoted to the support leg. The present invention relates to a passive belt device characterized by the following.

``Function'' Since the support legs on the lower surface of the seat cushion are used as storage areas for the retractor, the retractor does not protrude sideways from the side of the seat cushion, saving installation space in the area adjacent to the side of the seat cushion. There is no limitation, and there is no need to newly provide a member for attaching the retractor to the seat cushion side.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 3 show an embodiment of the present invention.

As shown in FIGS. 1 and 2, a seat 20 is attached to a vehicle body 10 so as to be movable back and forth by seat slide devices 30, 30, and a webbing 4
0 are arranged diagonally across the front of the seat 20.

One end 41 of the webbing 40 is wrapped around a retractor 50, and a cover 43 is provided so that the retractor 50 cannot be seen from the outside.

End bracket 4 which is the other end of webbing 40
2 is attached to the upper part of the door attachment frame 11 at a movable anchor point (not shown). By moving the anchor point, the webbing 40 wraps around the seated person, and in the wrapped state (the state shown by imaginary lines in FIG. 2), the webbing 40 takes the form of a so-called diagonal seat belt.

The present invention is not limited to this type of bassive belt device, but essentially requires one end to be attached to a moving anchor point, the other end to be wrapped around a retractor, and the retractor to adjust the length of the webbing 40 and absorb slack. applied to things.

As shown in FIGS. 1 and 3, the lower surface 23 of the cushion frame 22 of the seat cushion 21
Support legs 24, 24, . , 27 are substantially U-shaped, and a storage section 29 is constituted by these. If the supporting legs 27 are box-shaped so that the inside is not visible, there is no need to provide the cover 43.

A retractor 50 is housed in the support leg 25. That is, the retractor 50 is attached to the support wall 27.
A winding shaft 51 passes through the winding shaft 51 in the front and back direction in a substantially horizontal state, and nuts 56 are screwed into the front and rear sides of the winding shaft 51, respectively.
By tightening the seats 28 of both support walls 27
The retractor 50 is held between the two.

The mounting surfaces 26 of the support legs 24 and 25 are fastened to the seat side rail 31 of the seat slide device 30 with bolts 55. A vehicle body side rail 32 is fixed to the vehicle body 10 via mounting brackets 33 and 34.

Next, the action will be explained.

In FIG. 2, the end bracket 42 of the webbing 40 is positioned in front of the door mounting frame 11 by means of a movable anchor point (as shown in solid lines). In this state, the user can sit without being obstructed by the webbing 40.

When it is sensed that the person is seated, the anchor point moves, and thereby the end bracket 42 also moves from the front side of the door attachment frame 11 to the upper frame and is positioned at the rear side (the state shown by the imaginary line). As a result, the webbing 40 comes to wrap around the seated person, completing the wearing of the seat belt. During this time, the retractor 50 adjusts the length by winding or unrolling one end 41 of the webbing 40 according to changes in the tension of the webbing 40, and also absorbs slack, so that the webbing 40 is wrapped around the seated person with appropriate tension. Become.

Even when the seat 20 is adjusted to move back and forth, the end bracket 42 remains fixed, and one end 41 of the webbing 40 is wound or let out by the retractor 50 so that the webbing 40 is wrapped around the seated person with appropriate tension. . Since the retractor 50 does not protrude laterally from the side of the seat cushion 21 and only the cover 43 only slightly protrudes laterally from the side of the seat cushion 21, the seat 10 does not have a protruding feel. In addition, even if other parts are arranged close to the sides of the seat cushion 21, the seat 20 will not come into contact with those parts when moving back and forth, and a sufficient installation space for the other parts can be secured.

Further, since the retractor 50 is housed in the storage portion 29 of the support leg 25 of the seat cushion 21, there is no need to separately provide a member for attaching the retractor 50.

"Effects of the invention" According to the passive belt device according to the invention, the seat cushion does not have a protruding feeling and its appearance is not impaired without restricting the arrangement space of the parts adjacent to the sides of the seat cushion. Since it is stored in the leg and there is no need to provide a new member for attaching the retractor, the cost does not increase. Also, since the retractor was pivoted to the support leg,
The weight of the retractor can be reduced by omitting members to support the retractor, and the support legs are approximately U-shaped and form a closed cross section when installed, providing strength and preventing the retractor from collapsing in the event of a collision. It can withstand strong loads and has sufficient strength without increasing weight or cost.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention; Figure 1 is a side view of a seat with a fixed retractor; Figure 2 is an overall perspective view showing the passive belt device installed; FIG. 3 is an exploded perspective view showing the retractor installed, and FIG. 4 is an exploded perspective view showing a conventional passive belt device, showing the retractor installed. 10...Vehicle body, 21...Seat cushion, 2
5...Support leg, 29...Storage section, 30...Seat slide device, 40...Webbing, 41...One end, 42...Other end bracket (other end), 50...
Retractor.

Claims (1)

[Claim for Utility Model Registration] A passive belt in which one end of the webbing is wrapped around a retractor, the retractor is fixed to the lower part of the seat cushion, the other end is movably attached to a main part of the vehicle body, and the webbing is wrapped around a seated person. In the device, the seat cushion has a substantially U-shaped cross-section and protrudes downward on the side of the lower surface of the seat cushion, and has a substantially U-shaped bottom portion that has a mounting surface for attaching the seat slide device to the seat side rail, and has an inner portion. A passive belt device, characterized in that a support leg is provided with a storage section formed therein, and the retractor is stored in the storage section of the support leg and pivoted to the support leg.