JPS609085Y2 - Passive seat belt device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a passive seat belt device that automatically tightens and releases the seat belt in order to improve the rate of seat belt use in automobiles.

As a passive seatbelt device, one end of the seatbelt is attached to the vehicle body member at the rear lower part of the center layer of the seat via a retractor, and the other end of the seatbelt is attached to the rear of the door, and when the door is closed, the seatbelt automatically moves to the retractor. The seat belt fits around the body of a seated occupant who is caught in the seat, and when the door is opened, the joint end of the seat belt on the door side moves from the outside to the front, and the seat belt is pulled out from the retractor and released. However, it has the simplest structure and has been commonly used (for example, Japanese Patent Application Laid-Open No. 1986-13
(See Publication No. 2724).

However, the above-mentioned device does not require a drive source such as a motor to perform the various operations of tightening and releasing the seat belt, and does not require a seat belt guiding mechanism, etc., and is extremely advantageous in terms of structure and cost. However, at the beginning of the release operation and at the end of the tightening operation as the door opens and closes, the seatbelt rubs against the occupant's lower back on the center side of the vehicle body, pulling out or getting caught in the seatbelt, causing extreme discomfort to the occupant. However, depending on the case, a part of the clothing may be dragged and the fastening may not be performed properly.

The present invention aims to solve the above-mentioned problems, and will be described below with reference to embodiments shown in the accompanying drawings.

In FIG. 1, 1 is a seat belt, and 2 is a retractor. One end of the seat belt 1 is attached to a vehicle body member (the floor or a member fixed to the floor, etc.) at the lower rear of the center layer of the seat 3 via the retractor 2. and the other end is attached to seat 3.
The seat belt 1 is connected to the window frame 4a above the rear of the window layer portion of the door 4, and is configured such that the seat belt 1 is fastened crosswise from one shoulder to the other waist of a seated occupant when the door is closed. ing.

In the case of a sash-less door without a window frame 4a, the outer end of the seat belt 1 is coupled to a belt support portion that projects upwardly from the rear of the window layer of the sash-less door.

Reference numeral 5 denotes an armrest fixed to the side surface of the seat cushion 3a on the vehicle center side with bolts or the like, and a belt guide portion 5a through which the seat belt 1 is inserted and guided is formed on the front inner surface of the armrest 5.

The seat belt 1 is inserted from the rear of the arm rest 5 into the belt guide part 5a through the space 5b in the arm rest 5 from the retractor 2, and then the other end is attached to the door 4.

Therefore, when the seatbelt is fastened by closing the door, the part of the seatbelt 1 that should be in contact with the occupant's waist is held in place by the belt guide part 5a provided on the armrest 5, as shown in FIG. The belt 1 is supported in a position where the belt 1 is in contact with the waist or slightly in front of the waist.

As described above, in the present invention, an armrest is provided on the side surface of the center side of the seat that is not related to getting on and off the passenger, and a belt guide section for inserting and guiding the seatbelt is provided in the armrest. The armrest is supported by the belt guide part of the armrest slightly forward of the position where it is normally fitted to the passenger's waist, so the seatbelt strongly rubs the passenger's waist when the seatbelt is released or fastened when the door is opened or closed. These problems can be reduced or eliminated, and the seat belt can be properly worn at all times, and the feeling of pressure on the occupant due to the winding force of the retractor can be reduced when the belt is fastened, thereby improving the feeling of the seat belt being fastened. obtain.

Furthermore, when the door is opened, the center portion of the seatbelt is supported by the armrest's belt guide section well in front of the base of the seatbelt, so the space for getting in and out of the seat belt is significantly larger than that of conventional models, making it easier to get in and out of the vehicle. This can lead to significant improvements.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the door in the closed state, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a plan view of the door in the open state. . 1... Seat belt, 2... Retractor, 3... Seat, 4... Door, 5...
...Armrest, 5a...Belt guide part.

Claims (1)

[Scope of utility model registration request] An armrest is provided on the side surface of the seat cushion on the center side of the vehicle body, a belt guide portion for inserting and guiding the seat belt is provided in the armrest, and one end of the seat belt is attached to a vehicle body member at the rear lower part of the center layer of the seat via a retractor. The seat belt, which is inserted through the belt guide part of the armrest and connected at the other end to the rear part of the door, restrains the body of the seated occupant when the door is closed. A passive seat belt device characterized in that it is configured to be supported so as to lightly contact the waist of a person or to be positioned slightly in front of the waist.