JPH0665536B2 - Seat belt mounting structure for automobiles - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a seatbelt mounting structure in an automobile, particularly an open top type automobile in which an upper portion of a vehicle compartment is opened.

(Prior Art) Conventionally, as an open-top type automobile, for example, as disclosed in JP-A-59-209915,
It is generally well known that the upper part of the passenger compartment is formed by covering with a cover member such as a hood, and the cover member is removed as necessary to open the upper part of the passenger compartment to a fully open state.

On the other hand, in an automobile, a seat belt for a front seat is usually configured such that one end on the shoulder side is attached to an upper portion of the center pillar (a portion near a roof side rail).

(Problems to be solved by the invention) However, in the case of the above-mentioned open-top type automobile,
Since the upper part of the center pillar extends only to a position slightly above the belt line, if one end of the seat belt shoulder side is attached to the upper part of the center pillar, the shoulder part of the seat belt becomes lower than the shoulder part of the occupant. There was a problem that it would be located on the side.

Further, in an open-top type automobile, since the upper part of the passenger compartment is open, there is a problem that the rigidity of the vehicle body, particularly the rigidity of the front windshield and the floor is low.

The present invention has been made in view of the above points, and an object of the present invention is to appropriately provide a strength member on the upper side of a passenger compartment of the above-described open structure to provide rigidity around the front window and a body floor portion. While sufficiently increasing the rigidity,
The above-mentioned strength member is used to secure a good seat belt attachment structure.

(Means for Solving the Problems) In order to achieve the above object, the solution of the present invention is to provide an open top type automobile in which the upper part of the passenger compartment is open, and the left and right front pillars are arranged at the upper ends of the front windows. A front header that connects the front and rear parts, a horizontal part whose front end extends in the front-rear direction of the vehicle body and is connected to the center of the front header, and a vertical part whose lower end extends downward from the rear end of the horizontal part and is connected to the floor panel. And a center frame. Further, at least one end of the seat belt is attached to the center frame.

(Operation) With the above configuration, in the present invention, the left and right front pillars are connected by the front header located at the upper end portion of the front window, and the central portion of the front header has a center portion including a horizontal portion and a vertical portion. Since the frame is connected to the floor panel, the rigidity around the front window and the rigidity of the floor panel can be sufficiently increased by the connection structure of the front header and the center frame.

Further, one end of the seat belt on the shoulder side can be arbitrarily attached to a vertical part extending in the vertical direction of the center frame or a horizontal part extending in the front-rear direction on the upper side of the passenger compartment. It is possible to easily secure a good mounting state that does not occur.

Here, since the horizontal portion of the center frame extends in the front-rear direction on the upper side of the passenger compartment, the seat belt is automatically attached / detached by using the horizontal portion when the side door is opened / closed. The seat belt can be easily attached. That is, this passive seat belt may be configured such that one end thereof is engaged with a guide rail provided in the horizontal direction of the center frame in the front-rear direction so as to be movable back and forth, and the other end is attached to the side door. .

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 3 shows an overall structure of a vehicle body structure of an automobile equipped with a seat belt mounting structure according to an embodiment of the present invention. It is of an open top type that is formed, and the cover member can be removed as necessary to open the upper part of the vehicle compartment in a fully open state.

In FIG. 3, 1 is a vehicle body, 2 is a front window, 3
Is a pair of left and right front pillars for supporting the left and right side end portions of the front window 2, and 4 is a front header arranged at the upper end portion of the front window 2. Connected to the upper ends of the front pillars 3, 3 of
3 are connected to each other, and the upper end of the front window 2 is supported. Reference numeral 5 denotes a center frame. The center frame 5 has a horizontal portion 5a extending in the front-rear direction of the vehicle body and having a front end portion connected to the central portion of the front header 4, and a lower portion from a rear end of the horizontal portion 5a. Floor panel 11 whose extended lower end constitutes the floor of the vehicle body 1
It is formed in a substantially inverted L shape by the vertical portion 5b connected to.

The connection structure between the front header 4 and the front end of the horizontal portion 5a of the center frame 5 is shown in detail in FIGS. 4 to 7, the front header 4 is formed by the upper panel 41 and the lower panel 42 in a closed cross-sectional shape, while the horizontal portion 5a of the center frame 5 is a rectangle by the frame upper 51 and the frame lower 52. It has a closed cross section. The front end portion of the horizontal portion 5a of the center frame 5 is set such that the height dimension of its rectangular closed cross section becomes smaller as it goes forward, and the reinforcement formed by projecting downward on the left and right sides of the frame upper 51. It has bead parts 53, 53 for use. Then, the frame upper 51 of the center frame 5 is attached to the lower panel 42 of the front header 4 by a contact plate 54.
The front end of the horizontal portion 5a of the center frame 5 is connected to the front header 4 by being joined via the. still,
Reference numeral 43 is a rain rail formed at the rear end portion of the front header 4, and a position above the rain rail 43 is covered with a cover member. Reference numeral 55 is a trim provided inside the vehicle compartment to cover the center frame 5.

The connection structure between the lower end of the vertical portion 5b of the center frame 5 and the floor panel 11 is shown in detail in FIGS. 8 and 9. 8 and 9, the floor panel 11
Is a front floor panel 1 having a floor tunnel portion 12 that is bulged upward in the central portion and extends in the vehicle longitudinal direction.
3 and a rear floor panel 14 located at a position one step higher than the front floor panel 13 and at a position higher than the front floor panel 13. An inclined portion 15 is formed at the front of the rear floor panel 14 so as to incline forward and downward. Is joined to the rear end of the front floor panel 13. Further, the rear floor panel 14 is provided with inclined members 15 and cross member uppers 16 and 17 and cross member lowers 18 and 19 extending in the vehicle width direction, respectively, at positions rearward from the inclined member 15 by a predetermined distance. The cross member uppers 16, 17 form a closed cross section with the upper surface of the rear floor panel 14, and the cross member lowers 18, 19 are formed.
Forms a closed cross section with the lower surface of the rear floor panel 14.

On the other hand, the vertical portion 5b of the center frame 5 is formed into a rectangular closed cross section by the frame front 56 and the frame rear 57, and at the lower part of the vertical portion 5b, the length of the closed cross section in the vehicle body front-rear direction is downward. It is set so that it gradually increases as you go. The lower end of the vertical portion 5b of the center frame 5 straddles the floor tunnel portion 12 of the front floor panel 13 in the vehicle width direction on the front side thereof.
Further, the cross member upper 16 on the inclined portion 15 of the rear floor panel 14 on the rear side is connected and fixed to the floor panel 11 in a state of straddling in the vehicle front-rear direction. Reference numeral 20 is a reinforcement provided between the cross member uppers 16 and 17 on the rear floor panel 14, and 58 is a reinforcement provided inside the lower end of the vertical portion 5b of the center frame 5 so as to partition the closed cross section. Ment.

And in an automobile having a vehicle body structure as described above,
The mounting structure of the seat belt 5 for the front right seat, which is equipped as the first embodiment of the present invention, is shown in FIGS. The seat belt 6 is stretched from the left shoulder of the occupant to the right waist to restrain the occupant in a two-point supported state, and the occupant restrained state is automatically released when the side door 7 is opened, so-called two-point. It consists of a supporting passive seat belt.

That is, the seat belt 6 has an engagement fitting 62 that is engageable with the buckle 61 at one end on the shoulder side thereof,
The buckle 61 is a horizontal part 5 of the center frame 5.
It is supported via a sliding member 64 slidably inserted into the guide rail 63, which is provided in the front-rear direction so as to hang from the vicinity of the central portion in the longitudinal direction of a to the upper portion of the vertical portion 5b. ing. The sliding member 64 is drivingly connected via a belt 65 to a driving motor 66 mounted on the lower side of the vertical portion 5b of the center frame 5.
Therefore, one end of the seat belt 6 on the shoulder side is engaged with and supported by the guide rail 63 via the engaging metal fitting 62 and the buckle 61, and can be moved back and forth along the guide rail 63 by the operation of the drive motor 66. It is provided.

On the other hand, the other end of the seat belt 6 (one end on the waist side) is
The retractor 67 is connected to the retractor 67 attached to the lower rear end of the side door 7 on the right side of the vehicle body.
The slack of the seat belt 6 is automatically wound up. And when the occupant is sitting in the seat,
One end of the seat belt 6 on the shoulder side is supported by the rear end side of the guide rail 63 (the rear end of the horizontal portion 5a of the center frame 5 or the upper portion of the vertical portion 5b), and the other end is wound up by the retractor 67 for the amount of slack. In this state, the occupant on the seat is restrained by the seat belt 6 by being supported by the side door 7 via the retractor 67, and when the side door 7 is opened, the drive is interlocked with the opening movement of the side door 7. By the operation of the motor 66, one end of the seat belt 6 on the shoulder side is moved forward on the guide rail 63 to release the occupant restraint state.

Although the structure for attaching the seat belt for the front left seat is not shown, the seat belt 6 for the front right seat described above is not shown.
The structure itself is exactly the same as that of the mounting structure of (1) except that it is symmetrically arranged.

Therefore, in the above embodiment, the left and right front pillars 3, 3 are connected by the front header 4 having a closed cross section located at the upper end of the front window 2, and the central portion of the front header 4 has a closed cross section. Since it is connected to the floor panel 11 by a substantially inverted L-shaped center frame 5 composed of a horizontal portion 5a and a vertical portion 5b, the front header 4 and the center frame 5 provide a stronger connection structure to these strength members. With the rigidity, the rigidity of the vehicle body, especially the rigidity around the front window 2 and the rigidity of the floor panel 11 can be greatly increased. In particular, the vertical portion 5 of the center frame 5 as in the embodiment
When the lower end of the b is connected and fixed to the floor tunnel 11 and the cross member upper 16 which are strong in strength in the floor panel 11, the connection strength can be sufficiently secured.

When the seat belt 6 for the front seat is attached and equipped, the horizontal portion 5a of the center frame 5 extends in the front-rear direction on the upper side of the passenger compartment, while the vertical portion 5b has the horizontal portion 5a.
Since it extends vertically from the rear end to above the floor panel 11, any of the horizontal portion 5a and the vertical portion 5b of the center frame 5 can be used as a seat belt 6 attachment portion. It is possible to easily secure a good attachment state in which the seat belt 6 does not cause a shoulder shift or the like. Particularly, in the case of a passive seat belt in which the seat belt 6 is automatically attached and detached as the side door 7 is opened and closed as in the above embodiment, the horizontal portion 5 of the center frame 5 is used.
Since the guide rail 63 can be easily attached in the front-rear direction along a, it is advantageous to equip this passive seat belt.

In the above embodiment, the seat belt 6 is mounted on the seat belt 6 which is a two-point-supporting passive seat belt. However, the seat belt 6 is also applicable to a three-point-supporting passive seat belt. . That is, in this case, one end of the seat belt on the shoulder side is provided on the horizontal portion 5a of the center frame 5 in the front-rear direction, as in the case of the passive seat belt supporting two points.
3 is movably engaged in the front-rear direction, while the seatbelt is slidably supported by a guide ring attached to the lower rear end of the side door 7, and the other end of the seatbelt is a vertical portion of the center frame 5. The lower part of 5b or the lower end of the vertical part 5b may be connected to a retractor mounted around the floor panel 11 to which it is connected.

Further, FIG. 10 shows a mounting structure of a seat belt 6'of a type in which anchor points are fixed as a second embodiment of the present invention. That is, one end of the seat belt 6'is rotatably attached to the upper side surface of the vertical portion 5b of the center frame 5 via the mounting metal fitting 68, while the other end is attached to the lower side surface of the vertical portion 5b. And a retractor 67 '. A buckle 61 'is provided in the middle of the seat belt 6', and the buckle 61 'is provided.
Although not shown, one end engages with an engaging fitting of another seat belt paired with the seat belt 6'which is fixedly connected to the side door side floor panel.

Also in the case of the second embodiment, the center frame 5
The arrangement structure of etc. is the same as that of the first embodiment, and
As a result, it is of course possible to achieve the same action and effect.

As described above, according to the present invention, in an open-top type automobile, the left and right front pillars are connected by a front header located at the upper end of the front window, and the central portion of the front header is Since it is connected to the floor panel by the center frame composed of the horizontal portion and the vertical portion, the rigidity around the front window and the rigidity of the floor panel can be greatly increased by the connecting structure of the front header and the center frame. Further, since one end of the seat belt on the shoulder side can be arbitrarily attached to the horizontal portion or the vertical portion of the center frame, it is possible to easily ensure a good seat belt attachment state without shoulder displacement. Especially, since the horizontal portion of the center frame extends in the front-rear direction of the vehicle body on the upper side of the passenger compartment, the horizontal portion can be used as a position for disposing the guide rail to easily mount the passive seat belt. .

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a schematic perspective view showing a seatbelt mounting structure according to the first embodiment.
The figure is an enlarged sectional view showing a guide rail structure of a seat belt. FIG. 3 is a perspective view showing the overall structure of the vehicle body structure of the automobile, FIG. 4 is a vertical sectional side view showing the connection structure between the front header and the front end of the horizontal portion of the center frame, and FIG. 5 is the front end of the horizontal portion of the center frame. Perspective views, FIG. 6 and FIG.
The figure is a cross-sectional view taken along line VI-VI and line VII-VII in FIG. FIG. 8 is a perspective view showing a connection structure between the lower end of the vertical portion of the center frame and the floor panel, and FIG. 9 is a perspective view of FIG.
It is an expanded sectional view in the IX-IX line. FIG. 10 corresponds to FIG. 1 showing the second embodiment. 2 ... Front window, 3 ... Front pillar, 4 ... Front header, 5 ... Center frame, 5a ... Horizontal part, 5b
... vertical part, 6, 6 '... seat belt, 7 ... side door,
11 ... Floor panel, 63 ... Guide rail.

Claims (2)

[Claims] 1. In an open-top type automobile in which an upper part of a passenger compartment is open, a front header arranged at an upper end portion of a front window and connecting left and right front pillars,
A center frame having a horizontal portion extending in the front-rear direction of the vehicle body and having a front end portion connected to the central portion of the front header, and a vertical portion extending downward from the rear end of the horizontal portion and having a lower end connected to the floor panel; At least one end of a seat belt is attached to the center frame, which is a seat belt attachment structure for an automobile. 2. The seat belt according to claim 1, wherein one end of the seat belt is engaged with a guide rail provided in a front-rear direction on a horizontal portion of the center frame so as to be movable back and forth, and the other end is attached to a side door. The seatbelt mounting structure for automobiles as described in (1).