CN1308170C - Vehicle safety belt apparatus and assembling method thereof - Google Patents

Abstract

The seat belt device for a vehicle according to the present invention includes a slide rail for moving the anchor bolt of the seat belt, the front and rear ends of the slide rail are mounted on the vehicle body, and the rear mounting part of the slide rail is mounted on the vehicle body through a vibration absorbing device. Located on the rear floor under the rear seat at a specified distance from the side wall of the vehicle body, so that the front side mounting part of the slide rail can be moved in the vertical direction and the vehicle width direction (horizontal direction) in a non-fixed state. Rotation, thereby expanding the freedom of installation of the slide rail, and reliably prevents shaking after assembly.

Description

Vehicle safety belt device and assembly method thereof

Technical field

The invention relates to a safety belt device for a vehicle and an assembly method thereof. The safety belt device for a vehicle has a slide rail, which can make an anchor bolt (anchor) of a seat belt restraining a passenger Moving along the front and rear direction of the vehicle, the front and rear ends of the slide rail are installed on the vehicle body.

Background technique

The current safety belt device, such as disclosed in the Publication No. 59-131346, has a slide rail which can make the anchor bolt of the seat belt restraining the occupant move along the front and rear direction of the vehicle.

That is, the track (rail) itself of the slide rail of the safety belt device has an integrally formed front side curved portion slightly curved in a "C" shape on its front side, and an integrally formed reverse "C" shaped curved portion on its rear side. The rear side bending part, and the above-mentioned sliding rails are installed on the side sill inner by bolts and other mounting parts, so that the anchor bolts of the seat belts move from the sliding rails in the front and rear direction of the vehicle to meet the needs of the rear seats. The convenience of getting up and down the chair and the restraint performance of the front seat belt.

In the above-mentioned structure, since the length of the above-mentioned sliding rail along the front-rear direction of the vehicle is relatively short, it is not necessary to adopt a structure with special consideration for assembly performance. The front and rear slender slide rails are adopted, the front end of the slide rail is located near the rear side of the front seat, and the rear end is attached to the rear floor under the rear seat. The following problems may occur when using the vehicle safety belt device.

If the front and rear ends of the above-mentioned slide rails are installed on the vehicle body before the rear door and the seat are assembled, then, since the safety belts used by the occupants of the front seats are built into the rear The doors, without the rear doors, there is no way to pass the anchors for the seat belts through the slide rails, assuming the rear doors are installed on the body before the rear seats are installed, the rear doors will block the installation of the rear seats, Make it impossible for the rear seats to be inserted into the compartment.

On the other hand, although it can be considered to assemble the rear seat, the front seat, then assemble the front and rear doors to the vehicle body, and finally install the above-mentioned slide rail on the vehicle body, since the front side of the slide rail is installed on the On the inner rail or the seat bracket, the rear side of the sliding rail is installed on the rear floor under the rear seat, especially the installation space on the rear side of the sliding rail is too narrow, so the operation The performance is extremely bad, thereby hindering the smooth progress of the assembly operation.

Contents of Invention

An object of the present invention is to provide a safety belt device for a vehicle, by which the degree of freedom of installation of a sliding rail can be increased and shaking after assembly can be prevented.

Moreover, the object of the present invention is also to provide a method for assembling a safety belt device for a vehicle. Using the method for assembling, each required component can be smoothly assembled, especially the slide rail can be assembled on a space-limited installation seat. s position.

The seat belt device for a vehicle according to the present invention includes a slide rail for moving the anchor bolt of the seat belt, the front and rear ends of the slide rail are mounted on the vehicle body, and the rear mounting part of the slide rail is mounted on the vehicle body through a vibration absorbing device. The rear floor under the rear seat is located at a predetermined distance from the side wall of the vehicle body, so that the front side mounting part of the slide rail can rotate in the vertical direction and the vehicle width direction in a non-fixed state.

According to the above structure, since the rear mounting part of the slide rail is installed on the rear base plate, and the front mounting part is in an unfixed state, the sliding rail can be supported by the rear mounting part as a fulcrum in the up and down direction. And turn in the vehicle width direction (horizontal direction), thereby expanding the freedom of installation of the slide rail.

Furthermore, since the rear mounting portion of the above-mentioned slide rail can be mounted on the rear floor below the rear seat through the sway absorbing device, swaying after assembly can be reliably prevented.

In one embodiment of the present invention, the front mounting portion of the slide rail is mounted on a side rail (sidesill) at a position near the top of the seat frame, wherein the seat frame is provided on the inner rail for mounting. The outboard rear of the front seat.

According to the above structure, the mounting rigidity on the front side of the slide rail can be improved without degrading the assemblability.

In one embodiment of the present invention, the front mounting portion of the slide rail is mounted on the upper side of the occupant detection device under the front seat.

According to the above structure, since the front mounting part of the slide rail is mounted on the upper side of the occupant detecting device for detecting the occupant's weight, the assembly performance is not deteriorated, and the entire installation does not affect the load detection performance.

In one embodiment of the present invention, the rear side mounting part of the above-mentioned slide rail is installed on the rear bottom plate by stepped bolts, and the above-mentioned shake absorbing device includes a spring washer (spring washer) arranged between the bolt head and the stepped part. ).

According to the above structure, since the stepped bolt is used as the mounting means for mounting the rear mounting part of the slide rail to the rear floor, and the spring washer is used in the shake absorbing device, the stability of the slide rail can be ensured despite a simple structure. The function of turning the rear side mounting part in the vertical direction and the vehicle width direction, and absorbing the vibration generated after mounting.

In one embodiment of the present invention, the stepped bolt includes a washer fixed to a threaded portion on the lower side of the stepped portion, and an interval adjustment device provided on the upper side of the washer and having a smaller diameter than the washer.

According to the above structure, since the spacer is provided, the size of the spring washer will not be increased, so that the finished spring washer can be effectively used, and the sloshing generated after assembly can be reliably absorbed by its repulsive force. .

Moreover, the position of the rear end of the slide rail can be raised from the bottom plate by the height of the interval adjustment device, so that the slide rail is in a forward inclined state, and the diameter of the interval adjustment device is small, so the rear end of the slide rail can be used as a starting point, so that The front end of the sliding rail makes a relatively large rotation above the side rail.

The method for assembling a seat belt device for a vehicle according to the present invention is a method for assembling a seat belt device for a vehicle provided with a slide rail for moving an anchor bolt of the seat belt, including: At the position of the rear floor under the rear seat at a specified distance from the side wall of the vehicle body, the front side mounting part of the slide rail can be rotated in the vertical direction and outward in the vehicle width direction, and can be opened from the door. Rear assembly process in which the opening is pulled out to the outside of the vehicle, outward movement process in which the front mounting part of the slide rail is moved from the door opening to the outside of the vehicle, and rear seats and front seats are installed in the vehicle compartment Seat installation process, the inward movement process of moving the front side mounting part of the slide rail to the inside of the vehicle, the door installation process of installing the door with the seat belt recovery device built into the vehicle body, and the anchor bolt of the seat belt from the A front-side assembly process of assembling the front-side mounting portion of the slide rail at a predetermined position on the vehicle body side after the front-side mounting portion of the slide rail passes through the slide rail.

According to the above assembly method, in the rear assembly process, the rear mounting portion of the slide rail is mounted on the rear floor below the rear seat by means of a shake absorbing device so that the front mounting portion of the slide rail is mounted on the unfixed In this state, it can be turned vertically and outwardly in the width direction of the vehicle, and can be pulled out from the door opening to the outer side of the vehicle.

And the outward moving process of next step makes the front side installation part of slide rail move to the outside of the car from the door opening.

The seat installation process installs the rear seats and the front seats on the vehicle body.

The inward movement process moves the front mounting part of the slide rail that was temporarily moved outside the vehicle back into the vehicle.

The door assembly process installs the doors with built-in seat belt retractors to the body.

Front assembly process After passing the anchor bolt of the seat belt from the front mounting part of the slide rail (at this time, the front mounting part is in a non-fixed state) through the slide rail, the front mounting part of the slide rail is assembled to the vehicle body The specified position on the side.

Thus, the front and rear mounting parts of the slide rail, the rear seat, the front seat, the door and the anchor bolts of the safety belt are installed according to the above-mentioned special assembly sequence, and the above-mentioned components can be assembled smoothly in sequence, especially the The slide rails fit where the seat is installed where space is limited.

In one embodiment of the present invention, the outer rear portion of the front seat is mounted on a seat frame provided on the side rail, and the front mounting portion of the slide rail is mounted near the top of the seat frame. on the sidebar.

According to the above method, since the front mounting portion of the slide rail is mounted on the side rail, the mounting rigidity can be improved.

In one embodiment of the present invention, the designated position on the vehicle body side is set above the occupant detection device provided under the seat.

According to the method described above, since the front mounting portion of the slide rail is mounted on the upper side of the passenger detecting device for detecting the weight of the passenger, this mounting method does not affect the load detecting performance.

Description of drawings

Fig. 1 is a schematic side view of a vehicle provided with a seat belt device of the present invention;

Fig. 2 is a front view of the main parts in the closed state of the car door;

Fig. 3 is a schematic side view of the mobile seat belt device in the state where the vehicle door is opened.

Fig. 4 is a front view of the main parts in the state where the rear door is opened;

Figure 5 is an enlarged schematic view of the main part of Figure 4;

Figure 6 is a schematic diagram of the right side of Figure 5;

Figure 7 is a schematic plan view of Figure 6;

Fig. 8 is an enlarged schematic view of the structure of the rear mounting part of the slide rail;

Fig. 9 is a sectional view of a stepped bolt;

Fig. 10 is a sectional view of other embodiments of stepped bolts;

Fig. 11 is a process diagram of the assembly method of the vehicle safety belt device of the present invention;

Fig. 12 is an explanatory diagram of the rear side assembly process;

Fig. 13 is an explanatory diagram of an outward movement process;

Fig. 14 is an explanatory diagram of the seat installation process;

Fig. 15 is an explanatory diagram of an inward movement process;

Fig. 16 is an explanatory diagram of a door assembly process;

Fig. 17 is an explanatory diagram of the front side assembly process;

Figure 18 is an explanatory diagram when the assembly is complete;

Fig. 19 is a partial side view of another embodiment of the structure of the front mounting part of the sliding rail;

Figure 20 is a schematic plan view of Figure 19;

Figure 21 is a schematic diagram of the back of Figure 19;

Fig. 22 is an exploded perspective view of the occupant detecting device.

Detailed ways

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

What the attached drawing shows is the vehicle safety belt device and its assembly method. Firstly, referring to Fig. 1 to Fig. 4, the structure of the vehicle body and the structure of the car door will be described.

As shown in Figure 1 and Figure 3, on the side of the vehicle body of the vehicle 1, a side door consisting of a front door 2 and a rear door 3 is provided, and a hinge unit is provided at the front end of the front door 2 and the rear end of the rear door 3 respectively. The front door hinge 4 and the rear door hinge 5 of (hinge) constitute the side door of a kind of freestyle structure (that is, the double door structure left and right).

The front door 2 and the rear door 3 constituting the side door include door panels 6, 7, door sashes 8, 9, and window glass 10, 11, respectively. , 7. Inside (the specific position is between the inner panel of the car door and the outer panel of the car door), a safety anti-collision beam (side impact bar) (not shown) extending along the front and rear direction of the vehicle is provided.

The front door 2 is also provided with an outside door handle (door outer handle) (not shown) that can open and close the front door 2 from the outside of the vehicle, and a rearview mirror (door mirror) 12 for checking the situation behind the vehicle.

The car door of the left and right side-by-side double-door structure of the present embodiment is that the front car door 2 is opened preferentially in the composition, and the rear car door 3 must be opened after the front car door is opened.

A front seat entrance and exit 13a and a rear seat entrance and exit 13b are formed on the interior side of the above-mentioned doors, and the front seat entrance and exit 13a are opened and closed through the front door 2, and the rear seat entrance and exit 13b are opened and closed through the rear door. 3 to switch, at the same time, the above-mentioned two inlets and outlets 13a, 13b form a continuous opening 13 (door opening), and this opening 13 can be opened and closed freely by the doors 2, 3, which constitutes a kind of no central column ( center pillar less) body.

As shown in Fig. 1, locking devices 14, 15 for locking the rear door 3 to a striker (striker) on one side of the vehicle body are provided up and down on the front side of the rear door 3, and a front center position of the rear door 3 is provided. The locking device 17 is used to lock the impact portion 16 of the front door 2 .

In addition, as shown in FIGS. 2 and 3 , the front seat 21 is mounted on a floor panel 18 via a seat bracket 19 and a seat slide device 20 .

The front seat 21 includes a seat cushion (seat cushion) 22, a backrest (seat back) 23, and a headrest (head rest) 24, and on the tunnel portion (tunnel) 18a side of the seat cushion 22 of the front seat 21, a Belt buckle (buckle) 25, this belt buckle 25 is fixed on the cushion support (seat cushion bracket) of cushion 22 one side by auxiliary rod (stoke) 26, or is fixed on the seat cushion bracket (bucklebracket) by unillustrated belt buckle support (bucklebracket) On the bottom plate 18.

At the rear portion of the above-mentioned base plate 18, a lift portion (kick up) 27 integrally formed or integrally formed with the base plate is provided, and a seat cushion 29 of a rear seat 28 is installed on a top deck surface (top deck surface) 27a of the lift portion 27. That is, as shown in FIG. 3 , in the compartment 30 of the vehicle 1 , rows of seats 21 and 28 are arranged front and rear.

Fig. 2 is a partial front view of the above-mentioned front seat 21 and the rear door 3 when they are closed, and Fig. 4 is a partial front view of the rear door 3 in an open state, and shows a front view for restraining a passenger seated on the front seat 21. Personnel seat belt 31 .

The seat belt 31 is retracted and reset by a retractor 32 provided inside a door front structure 3 a having the same rigidity as a center pillar of the rear door 3 .

An integrally formed door interior trim (door trim) 34 with an armrest (arm rest) 33 is provided on most of the lower side of the rear door 3 on the side of the compartment; On the upper side of the front seat 21, a shoulder anchor 35 is provided at a position approximately corresponding to the height of the headrest 24 of the front seat 21.

And, after the safety belt 31 pulled out from the recovering device 32 inside the rear door 3 is pulled from the upper end of the door interior trim 34 to the position inside the vehicle compartment of the door front side structure 3a, its middle part is supported by the shoulder anchor 35. The support can extend to the inside of the compartment 30.

The middle position of the extension of the above-mentioned safety belt 31 is provided with a movable protrusion (tang) 36, and as shown in FIG. The underside of the edge slides in the front-to-rear direction of the vehicle.

Next, the front-back sliding structure of the lower end portion of the above-mentioned seat belt 31 will be described.

As shown in Fig. 2 and Fig. 3, a side sill (side sill) 40 as a rigid part of the vehicle body is provided on the left and right sides of the base plate 18 (only one side is shown in the drawings), and the side sill 40 includes an inner side sill 37 and The outer side rail 38 and the side rail closed section 39 extending in the front-rear direction of the vehicle, and approximately along the height position of the upper end of the side rail 40, are fixed by bolts 42 and mounting members 43 (see FIGS. 5 to 7 ). Slide rail 41 made of metal tube or metal round bar.

The anchor bolt 44 provided at the extended end portion of the seat belt 31 is movable along the slide rail 41 in the front-rear direction of the vehicle. That is, the slide rail 41 is a rail member that guides the anchor 44 of the seat belt 31 to slide in the front-rear direction of the vehicle.

5 is an enlarged schematic view of the main part of FIG. 2, FIG. 6 is a schematic view of the right side of FIG. 5, and FIG. 7 is a schematic plan view of FIG. The curved portion 41b bent in a "C" shape is integrally formed with the front side of the sliding guide portion 41a or the flat front mounting portion 41f is integrally formed, and the bent portion 41c bent in a slightly "L" shape is connected to the front side of the sliding guide portion 41a. The rear side of the sliding guide portion 41a is integrally formed or a flat rear mounting portion 41r is integrally formed.

As shown in Fig. 5, Fig. 6, and Fig. 7, the seat frame 45 at the rear of the outer side of the front seat 21 is fixedly engaged between the inner side rail 37 and the floor 18, and the above-mentioned slide rail 41 The front side mounting portion 41 f is mounted on the inner side rail 37 located near the upper side of the seat frame 45 .

That is, as shown in Figure 5, a nut 46 is welded and fixed in advance on the closed section 39 side of the inner side rail 37, and a washer (washer) 47 is arranged between the side of the side rail 37 on the side of the compartment and the front mounting part 41f. and a spacer 48, and the front mounting portion 41f of the slide rail 41 can be mounted on the inner side rail 37 using the above-mentioned bolt 42 in this state.

The rear mounting portion 41r of the above-mentioned slide rail 41 is mounted on the top layer of the kick up portion (kick up) of the rear floor under the seat cushion 29 of the rear seat 28 on the inner side of the predetermined distance from the side wall of the vehicle body through the mounting member 43. surface 27a.

That is, as shown in Fig. 6, Fig. 8 and Fig. 9, the fixing nut 50 is pre-welded on the lower surface relative to the top layer surface 27a, relative to the stepped bolt 54 integrally formed by the bolt head 51, the stepped portion 52, and the threaded portion 53, The spring washer 55 as the shake absorbing device, the rear side mounting part 41r of the slide rail 41 (the specific position is its mounting hole), the interval adjusting device 56, the fixing washer 57, and the stopper for determining the position of the fixing washer and fixing it are provided in sequence. Moving metal part 58, in this state, after screwing the threaded part of above-mentioned stepped bolt 54 into nut 50 from above, the rear mounting part 41r of slide rail 41 can be fixed on the rear bottom plate.

Here, the spring washer 55 is provided between the rear mounting portion 41r on the outer periphery of the stepped portion 52 and the bolt head 51, and the repulsive force of the spring washer 55 absorbs vibration after the slide rail 41 is assembled.

In addition, compared with the washer 57 fixed to the threaded portion 53 on the lower side of the stepped portion 52 by the stopper metal piece 58, the interval adjusting device 56 provided on the upper portion of the washer 57 has a smaller diameter. , can avoid above-mentioned spring washer 55 being too big, and spring washer 55, interval adjusting device 56, fixed washer 57, and stop metal piece 58 can all use finished products to reduce manufacturing cost.

And, the stepped portion 52 shown in FIG. 9 can also be shown in FIG. 10, using a stepped portion formed by setting a metal ring member 59 between the bolt head 51 and the gap adjustment device 56, instead of the integrally formed stepped bolt 54. , each structural element 51, 53, 54, 55, 56, 57, 58, 59 can all use the finished product like this, make the manufacturing cost more tend to cheap.

Moreover, the position of the rear end of the slide rail can also be raised from the base plate by the height of the space adjustment device, so that the slide rail is in a forward tilting state. Because the diameter of the space adjustment device is small, the front side of the slide rail can be the rear end of the slide rail. From the starting point, make a larger turn above the sidebar.

Using the stepped bolt 54 shown in FIG. 9 or FIG. 10, the rear side mounting portion 41r of the slide rail 41 is mounted on the top floor surface 27a, and in the non-fixed state in which the front side mounting portion 41f of the slide rail 41 is not fixed. , the sliding rail 41 can rotate in the vertical direction and the vehicle width direction by using the stepped bolt 54 as a fulcrum.

In Fig. 5, Fig. 6, and Fig. 7, the solid line A is the original installation position of the sliding rail 41, the dotted line B is the position after the sliding rail 41 is lifted up, and the dotted line C is the installation position of the sliding rail 41 from the door opening 13. After being pulled out in the vehicle width direction, it can move to the position of the stepped portion 38 a of the outer side rail 38 .

In Fig. 1 to Fig. 4, 60 is a scarf plate formed of materials such as synthetic resin, 61 is a roof panel, 62 is a roof rail, and 63 is an outer side of the roof. Roof side rail outer, 64 is a roof side rail inner, in FIG. 7, F represents the front of the vehicle, R represents the rear of the vehicle, and OUT represents the outside of the vehicle.

In addition, only the structure on the right side of the vehicle is illustrated in the drawings, but the structure on the left side of the vehicle is basically bilaterally symmetrical to the structure on the right side.

Hereinafter, the assembly method of the seat belt device will be described with reference to the process diagram of FIG. 11 and the explanatory diagrams (plan views) of FIGS. ), 66 is a hinge pillar as a rigid part of the vehicle body, 67 is a tunnel reinforcement (tunnel reinforcement) as a strength member extending in the vehicle front-rear direction along the upper side of the tunnel portion 18a, and 68 is a dash cross beam. member), 69 is the rear body.

11, first, as shown in FIG. 12, the rear mounting part 41r of the slide rail 41 is mounted on the top surface 27a using the mounting member 43 (see FIG. 8). At this time, the front mounting portion 41f of the slide rail 41 is kept in a non-fixed state without mounting. In this state, in order to make the front mounting portion 41f of the slide rail 41 rotate in the vertical direction or rotate in the vehicle width direction. and can be pulled out from the door opening 13 to the outside of the vehicle, so on the inside of the specified distance from the side wall of the vehicle body, on the roof surface 27a below the position where the rear seat 28 is installed in the subsequent process, pass The above-mentioned rear side mounting part 41r is mounted with a shake absorbing device (refer to FIG. 8 ).

In the outward moving step S2 of the process diagram in FIG. 11 , as shown by the dotted line B to the dotted line C in FIG. 5 , the front mounting portion 41f of the slide rail 41 can be moved from the door opening 13 to the outside of the vehicle (refer to FIG. 13 ). At this moment, the sliding guide portion 41a of the sliding rail 41 that has been pulled out of the vehicle is at a lower position, so as not to hinder the rear seat 28 from being carried into the vehicle compartment.

In the seat installation step S3 in the process diagram of FIG. 11 , the rear seat 28 and the front seat 21 are carried into the vehicle compartment from the door opening 13, and then the seats 28, 21 are mounted on the vehicle body (refer to FIG. 14). At this time, since the slide rail 41 is at the position of the dotted line C shown in FIG. 5 , the rear seat 28 can be smoothly carried into the vehicle.

In the inward movement process S4 of the process chart of FIG. 11, the front side attachment part 41f of the slide rail 41 temporarily pulled out of a vehicle is moved into a vehicle interior (refer FIG. 15).

In the door attachment step S5 in the process diagram of FIG. 11 , as shown in FIG. 16 , the rear door in which the recovery device 32 of the seat belt 31 is built is attached to the vehicle body.

In the anchor bolt insertion step S6 in the process diagram of FIG. 11 , the anchor bolt 44 of the safety belt 31 is passed through the sliding guide portion 41a from the front side mounting portion 41f through the bent portion 41b, and the anchor bolt 44 is set to be slidable relative to The rail 41 slides in the vehicle front-rear direction (see FIG. 17 ).

In the front side assembly step S7 in the process diagram of FIG. 11 , the front side mounting portion 41f of the slide rail 41 is mounted on the inner side rail 37 (refer to FIG. 17 ) using bolts 42 as mounting parts. The vicinity above the seat frame 45 which is a designated position on the vehicle body side.

Next, as shown in FIG. 18 , the front door 2 is installed on the vehicle body.

After the above-mentioned assembly process is completed, as shown by the dotted line in Fig. 1 or the dotted line α in Fig. 3, when the rear door 3 is closed, the positions of the safety belt 31, the shoulder anchor bolt 35, and the protrusion 36 are roughly in line with those of the front seat. The headrest 24 of 21 is corresponding, when safety belt 31 is fastened, because this safety belt 31 is pulled by the passenger of front seat, the safety belt lower end that is fixed on the anchor bolt 44 (movable anchor bolt, i.e. slider (slider)) portion, the slide guide portion 41a of the slide rail 41 moves to a position as close to the front of the front seat 21 as possible.

Therefore, as shown in FIG. 2 , the fixing metal piece at the top of the protrusion 36 is inserted into the buckle 25 , and the front seat occupant at the front seat 21 can be constrained by the formed 3-point safety belt structure.

On the other hand, after the front seat occupant unclamps the safety belt 31 and opens the front door 2, as shown in Figure 3, once the rear door 3 is opened again, the safety belt 31 will be pulled toward At the rear of the vehicle, the lower end of the safety belt 31 fixed on the anchor bolt 44 moves backward along the sliding guide portion 41a of the slide rail 41 as shown by the solid line in FIG. No obstacle will be felt because of the seat belt 31 . On this point, it is also the same when getting on the bus, so that the safety belt 31 will not hinder the getting on and off of the rear seat passenger.

The vehicle safety belt device of the embodiment shown in FIGS. 1 to 18 is equipped with a slide rail 41 for moving the anchor bolt 44 of the seat belt 31. The front and rear ends of the slide rail 41 are mounted on the vehicle body. The slide rail 41 The rear mounting portion 41r of the rear side is installed on the rear floor (see the top surface 27a) located below the rear seat 28 at a position at a predetermined distance from the side wall of the vehicle body through a shake absorbing device (see the spring washer 55), so that The front mounting portion 41f of the slide rail 41 is rotatable in the vertical direction and the vehicle width direction in a non-fixed state.

With this structure, since the rear mounting portion 41r of the slide rail 41 is mounted on the rear floor, and the front mounting portion 41f is in an unfixed, non-fixed state, the slide rail 41 can use the rear mounting portion 41r as a fulcrum. , rotate in the vertical direction and the vehicle width direction (horizontal direction), thereby expanding the degree of freedom of installation of the slide rail 41 .

Moreover, since the rear side mounting portion 41r of the above-mentioned slide rail 41 can be mounted on the rear floor below the rear seat 28 through a shake absorbing device (refer to the spring washer 55), thereby, as shown in FIG. 6, It can reliably prevent the sliding rail 41 from being slightly tilted and assembled in a state of low front and high rear, resulting in shaking.

In addition, the front mounting portion 41f of the slide rail 41 is mounted on the side rail 40 located near the upper side of the seat frame 45 provided on the inner rail for mounting the front seat 21. Outer rear.

According to this structure, the attachment rigidity of the front side of the slide rail 41 can be improved without deteriorating the assemblability.

Also, the rear mounting portion 41r of the above-mentioned slide rail 41 can be mounted on the rear floor (refer to the top surface 27a) by the stepped bolt 54, and the above-mentioned shake absorbing device is provided with a spring pad between the bolt head 51 and the stepped portion 52. slice 55.

According to this structure, since the stepped bolt 54 is used as the mounting means for mounting the rear side mounting portion 41r of the slide rail 41 to the rear floor, and the spring washer 55 is used in the vibration absorbing means, the structure is simple and stable. The rear mounting portion 41r of the slide rail 41 can ensure the function of turning in the vertical direction and the vehicle width direction, and the function of absorbing the vibration generated after mounting.

The above-mentioned stepped bolt 54 also includes a fixed washer 57 fixed on the threaded portion 53 on the lower side of the stepped portion 52 , and a gap adjustment device 56 arranged on the upper side of the fixed washer 57 and having a smaller diameter than the fixed washer 57 .

According to this structure, since the above-mentioned interval adjustment device 56 is provided, the size of the spring washer 55 will not be increased. Thus, the finished spring washer 55 can be effectively used to absorb the assembled spring with its repulsive force. resulting shaking.

And, the position of the rear end of the slide rail 41 can be raised from the base plate by the height of a spacing adjustment device 56, so that the slide rail 41 is in a forward tilting state, and the diameter of the spacing adjustment device 56 is smaller, so that the rear of the slide rail 41 As starting point, the front end of slide rail 41 is rotated more substantially above the side rail.

The assembly method of the vehicle safety belt device of the embodiment shown in Fig. 11 to Fig. 18 is an assembly method of the vehicle safety belt device provided with the slide rail 41 that moves the anchor bolt 44 of the safety belt 31, including: device (refer to the spring washer 55) to install the rear side mounting portion 41r of the above-mentioned slide rail 41 on the rear floor (refer to the top surface 27a) located below the rear seat 28 at a predetermined distance from the side wall of the vehicle body, The rear side assembly process S1 of making the front mounting portion 41f of the slide rail 41 vertically rotatable and outwardly rotatable in the vehicle width direction and pulled out from the door opening 13 to the outside of the vehicle is to make the slide rail The front side installation part 41f of 41 is moved from the door opening 13 to the outward moving process S2 of the vehicle outside, and the seat installation process S3 of installing the rear seat 28 and the front seat 21 in the compartment is to install the slide rail 41 The front mounting part 41f of the front side is moved to the inward movement process S4 of the vehicle, and the door (refer to the rear door 3) with the recovery device 32 of the seat belt 31 is installed on the door installation process S5 of the vehicle body. After the anchor bolt 44 passes through the slide rail 41 from the front attaching portion 41f of the slide rail 41, the front attaching portion 41f of the slide rail 41 is attached to a predetermined position on the vehicle body side in the front assembly steps S6 and S7.

According to the method described above, in the rear assembly step S1, the rear mounting portion 41r of the slide rail 41 is mounted on the rear floor below the rear seat 28 by means of a vibration absorbing device (refer to the spring washer 55), so that the The front mounting portion 41f of the slide rail 41 is rotatable vertically and outwardly in the vehicle width direction in an unfixed state, and can be pulled out from the door opening 13 outwardly.

The outward movement step S2 moves the front mounting portion 41f of the slide rail 41 from the door opening 13 to the outside of the vehicle.

The seat installation process S3 installs the rear seat 28 and the front seat 21 in the vehicle compartment.

The inward movement step S4 moves the front mounting portion 41f of the slide rail 41 temporarily outside the vehicle back into the vehicle.

In the door assembly step S5 , the door (refer to the rear door 3 ) in which the recovery device 32 for the seat belt 31 is built is attached to the vehicle body.

Front assembly process S6, S7 After the anchor bolt 44 of the seat belt 31 is passed through the slide rail 41 from the front side mounting part 41f of the slide rail 41 (the front side mount part 41f is in a non-fixed state at this time), the slide rail The front side mounting part 41f of 41 is mounted at a predetermined position on the vehicle body side.

Thus, the front and rear installation parts 41f, 41r of the slide rail 41, the rear seat 28, the front seat 21, the door 3, and the anchor bolt 44 of the safety belt 31 are installed according to the above-mentioned special assembly sequence, and it is possible to proceed smoothly in sequence. The above-mentioned components can be assembled properly, especially the sliding rail 41 can be well assembled at the positions where the seats 21 and 28 are installed where the space is limited.

Also, the outer rear portion of the front seat 21 is mounted on the seat frame 45 provided on the side rail 40, and the front mounting portion 41f of the slide rail 41 is mounted near the top of the seat frame 45. on the sidebar 40.

According to the above structure, since the front mounting portion 41f of the slide rail 41 is mounted on the side rail 40, the mounting rigidity can be improved.

In the above-mentioned embodiment, the front mounting portion 41f of the sliding rail 41 is installed on the above-mentioned side rail 40, and the process S7 shown in FIG. ~The upper side of the occupant detection device 70 shown in Figure 21 replaces the side rail 40, and this structure will be described below.

Between the seat sliding device 20 of the front seat 21 and the seat frame 19 on the floor 18, as shown in FIGS. Vehicle personnel detection device 70.

Here, as shown in FIG. 21 , the above-mentioned seat sliding device 20 includes a lower rail (lower rail) 71, an upper rail (upper rail) 72, and a plurality of balls 73 arranged between the upper and lower rails 71 and 72. , the device 20 is respectively provided at the lower side of the driver's seat and the lower side of the passenger seat respectively, and corresponding to the seat sliding device 20, a total of 4 groups of the above-mentioned occupant detecting devices 70 are arranged.

FIG. 22 is an exploded perspective view of the main parts of the vehicle occupant detecting device 70. The vehicle occupant detecting device 70 is equipped with a concave section arm (arm) 80 and a load sensor 81, which can detect the load of the vehicle occupant's weight. device 82 , a concave section base 83 that supports the load detection device 82 , and a load transfer device 74 that transfers the load added to the front seat 21 to the load detection device 82 .

The length of the above-mentioned base 83 is substantially the same as the length in the front-rear direction of the lower side rail 71 of the seat slide device 20, and extends along the front-rear direction of the vehicle. As shown in FIG. superior.

Furthermore, two sets of the above-mentioned load detection device 82 and load transmission device 74 are provided in total in front and rear of one base 83 .

FIG. 22 is an exploded oblique view of the rear side of the occupant detecting device 70. The above-mentioned arm 80 and load transfer device 74 are mounted on the inside of the base 83 through bolts 84, 85 and nuts 86, 87.

And, the above-mentioned load transmission device 74 is installed on the lower side rail 71 of the seat sliding device 20 using the bolts 88, 88 shown in FIG. 20, and as shown in FIG. Extends to the rear end of the front seat 21 .

Then, once a load is applied to the above-mentioned load transmission device 74, the arm 80 rotates within a maximum range of only 5 degrees, and the active parts 80a, 80a of the arm 80 transmit the load to the load sensor 81, and the output of the load sensor 81 is relatively The electric signal of the mechanical bending deformation of the action part 80a is used to detect the weight of the passenger.

In addition, the detailed structure of the occupant detecting device 70 is the same as that described in Japanese Patent Laid-Open No. 2000-258233.

The above-mentioned load transfer device 74 has an integrally formed substantially cylindrical extension portion 74a, which extends obliquely from the rear end of the load transfer device 74 to the rear. The side mounting part 41f, as shown in Fig. 19, Fig. 20, and Fig. 21, is mounted on the extension part 74a by the bolt 42, so that the front end of the slide rail 41 (refer to the front side mounting part 41f) can be mounted on the front end. The upper side of the occupant detection device 70 below the front seat 21.

Since the front end of the slide rail 41 is installed on the upper side of the occupant detection device 70 below the front seat 21, when the safety belt 31 is used, the detection of the occupant will not be affected by the tension of the safety belt. , so as to ensure accurate detection of the load by the occupant detecting device 70 .

In other words, if the above-mentioned moving rail is installed on the floor, when the occupant in the front seat uses the seat belt, the above-mentioned anchor and the seat belt (lap belt) are subjected to the tension of the seat belt, plus the seat belt located in the front The weight of the occupant of the seat causes the tension of the seat belt to act in the direction of the floor, which may cause erroneous detection by the occupant detection device 70. If the structure shown in Figures 19 to 22 is adopted, the above-mentioned erroneous detection can be prevented. happened.

Therefore, the vehicle seat belt device of the embodiment shown in FIGS. .

According to this structure, since the front mounting portion 41f of the slide rail 41 is mounted on the upper side of the occupant detection device 70 for detecting the weight of the occupant, the deterioration of the assembly performance is not caused, and the entire installation does not affect the load detection. performance.

In addition, in the assembly method of the vehicle seat belt device according to the embodiment shown in FIGS. The passenger detects the upper side of the device 70 .

According to this configuration, since the front mounting portion 41f of the slide rail 41 is mounted on the upper side of the occupant detection device 70 for detecting the weight of the occupant, the mounting method does not affect the load detection performance.

And, in the embodiment shown in Fig. 19 ~ Fig. 22, because other structures, functions, effects are basically the same as the above-mentioned embodiment, so in Fig. 19 ~ Fig. symbols, and their detailed descriptions are omitted.

Regarding the corresponding aspects of the structure of the present invention and the above-mentioned embodiment, the shaking absorbing device of the present invention corresponds to the spring washer 55 of the embodiment, and likewise, the rear floor corresponds to the top surface 27a, but the invention is not limited thereto. In the structure of the above-mentioned embodiment.

With the vehicle safety belt device of the present invention, since the rear mounting portion of the slide rail is installed on the rear floor under the rear seat inside the vehicle body through the shake absorbing device, the front mounting portion of the slide rail is not fixed. In this state, it can be rotated in the up and down direction or outward in the vehicle width direction (horizontal direction), so as to achieve the effect of expanding the installation freedom of the sliding rail and preventing the shaking after assembly.

According to the assembly method of the safety belt device for a vehicle of the present invention, since the front and rear mounting parts of the slide rail, the rear seat, the front seat, the door and the anchor bolt of the seat belt are installed in a special order, each element is The installation is very smooth, especially the sliding rail can be well fitted in the place where the seat is installed due to space constraints.

Claims (8)

1. vehicle safety belting comprises the slip rail that the crab-bolt that makes safety strap moves, and the rear and front end of above-mentioned slip rail is installed on the vehicle body, it is characterized in that, also comprises:

Heel slab is positioned at the below of vehicle rear seat;

Rock absorption plant, be arranged on the above-mentioned heel slab;

Wherein, above-mentioned slip rail comprises

Installed in front portion, this installed in front portion can rotate on above-below direction and vehicle-width direction under the on-fixed state;

The rear side installation portion, by above-mentioned rock absorption plant be installed in above-mentioned heel slab on the position of vehicle body sidewall distance to a declared goal.

2. vehicle safety belting according to claim 1 is characterized in that, also comprises:

The side hurdle is positioned at vehicle body side;

Seat support is arranged on the above-mentioned side hurdle, is used for the rear portion, the outside of mounting vehicle front seat;

Wherein, the installed in front portion of above-mentioned slip rail is installed near the position, the above-mentioned seat support of being positioned at of above-mentioned side hurdle top.

3. vehicle safety belting according to claim 1 is characterized in that, also comprises:

Personnel find out device by bus, are arranged on the below of front part of vehicle seat;

Wherein, the installed in front portion of above-mentioned slip rail is mounted the upside that above-mentioned rider person finds out device.

4. according to wherein any one described vehicle safety belting of claim 1 to 3, it is characterized in that, also comprise:

The ladder bolt possesses bolt cap, end difference and threaded portion, and this ladder bolt is installed in the rear side installation portion of above-mentioned slip rail on the above-mentioned heel slab;

Wherein, the above-mentioned absorption plant that rocks comprises the spring shim that is arranged between above-mentioned bolt cap and the above-mentioned end difference.

5. vehicle safety belting according to claim 4 is characterized in that:

Above-mentioned ladder bolt also comprises

Packing ring is fixed on the above-mentioned threaded portion of above-mentioned end difference downside;

Setting device is arranged on above-mentioned packing ring top and diameter less than this packing ring at interval.

6. an assembling possesses the assembly method of the vehicle safety belting of the slip rail that the crab-bolt that makes safety strap moves, and it is characterized in that, comprising:

The rear side assembly process, by rock absorption plant the rear side installation portion of above-mentioned slip rail is installed in the rear seat below heel slab on the position of vehicle body sidewall distance to a declared goal, make the installed in front portion of slip rail rotate on the above-below direction and on vehicle-width direction, outwards to rotate, and can be drawn out to the car outside from the car door peristome;

Outwards mobile process makes the installed in front portion of slip rail shift to outside the car from the car door peristome;

The chair mounted operation is installed in rear seat and front seat on the vehicle body;

Move inward operation, the installed in front portion of slip rail is retracted in the car;

The door fitting operation will be built-in with the door fitting of safety strap regenerative apparatus to vehicle body;

Anterior assembly process after this slip rail passes in the installed in front portion of slip rail, is assemblied in the installed in front portion of slip rail the assigned address of body side with the crab-bolt of safety strap.

7. the assembly method of vehicle safety belting according to claim 6 is characterized in that:

The rear portion in the above-mentioned front seat outside is installed on the seat support that is arranged on the side hurdle,

The installed in front portion of above-mentioned slip rail is assemblied near the side hurdle, above-mentioned seat support top.

8. the assembly method of vehicle safety belting according to claim 6 is characterized in that:

The by bus personnel that above-mentioned body side assigned address is set in the under-seat setting find out the upside of device.

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