JPS62103261A - Vehicle body structure for automobile - Google Patents

Abstract

PURPOSE:To enhance the rigidity of rear cab side sections in an open-top vehicle, by connecting the vertical section of a center frame coupled to the center section of a front header with a reinforcement connecting between both rear side walls, through the intermediary of a coupling member. CONSTITUTION:A front header 4 connecting between the upper ends of right and left center front pillars 3, 3 in an open-top vehicle, is connected with a floor panel 11 through the intermediary of an inverted L-like center frame 5. Further, both right and left rear cab sides 18, 18 constituting both side walls of the rear section of a vehicle body, are connected with each other through the intermediary of a reinforcement 24 extending widthwise of the vehicle body. Further, a vertical section 5b of the center frame 5 is connected to a reinforcement 22 through the intermediary of a coupling member 30 extending longitudinally of the vehicle body. The reinforcement 22 is connected to the upper ends of both right and left side suspension tower sections 23 which constitute a part of cab side panels 20.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to the body structure of an automobile, and particularly to an open-type car body structure in which the upper part of the passenger compartment is open.

(Prior Art) Conventionally, as an oven-top type automobile, for example, as disclosed in Japanese Patent Application Laid-Open No. 59-209915,
It is generally well known that the upper part of the interior compartment is formed by covering the upper part of the interior with a cover member such as a hood, and this cover member can be removed as necessary to fully open the upper part of the compartment. .

(Problem to be Solved by the Invention) However, since the A-Puntotsubu type automobile has an open structure at the top of the cabin, the rigidity of the vehicle body, especially around the front window and the A7 Kitobub side, has to be improved. There was a problem of low rigidity. Conventionally, this has been dealt with by placing the side sills and cross members located on both the left and right sides of the floor section higher than in non-oven top type automobiles, but it is necessary to ensure sufficient rigidity. The reality is that this has not yet been achieved.

The present invention has been made in view of these points, and its purpose is to appropriately provide a strength member on the upper side of the single compartment of the open structure as described above, so as to sufficiently increase the rigidity of the vehicle body. It is something to do.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a means for solving the problems in an oven-top type automobile in which the upper part of the passenger compartment is open. a front header that connects the pillars, a horizontal part that extends in the longitudinal direction of the vehicle and whose front end is connected to the center of the front header, and a vertical part that extends downward from the rear end of the horizontal part and whose lower end is connected to the floor panel. A center frame consisting of a center frame, a reinforcement connecting the upper parts of the left and right rear cab sides constituting the rear side wall of the vehicle body, and a connecting member connecting the reinforcement and the vertical part of the center frame. be.

(Function) 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 of the front window, and the center part of the front header is formed by a center consisting of a horizontal part and a vertical part. Since the vehicle is connected to the floor panel by the frame, the rigidity around the front window and the rigidity of the floor panel can be sufficiently increased by the connection structure using the front header and the center frame.

Furthermore, by connecting the left and right cabs at the rear of the vehicle body with reinforcements extending in the vehicle width direction at their upper parts, the rigidity in the vehicle width direction around the rear grille is improved, and the reinforcement and center frame By connecting the vertical part of the rear cab side with a connecting member extending in the front-rear direction, the center frame and the left and right A7 cab sides are connected via the connecting member and reinforcement, which increases the rigidity in the front-rear direction around the rear cab side. As a result, the rigidity around the rear cab sides will be significantly improved.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows the overall structure of a car body structure of an automobile according to an embodiment of the present invention, in which the entire upper part of the passenger compartment is covered with a cover member (not shown) such as a hood. It is an oven top type oven that allows you to remove this cover part and open the upper part of the middle chamber to a full oven condition.

In Fig. 1, 1 is the vehicle body, 2 is the front panel 1 to the window,
Reference numeral 3 indicates a pair of left and right front pillars that support the left and right side ends of the front window 2, and 4 indicates a front header disposed at the upper end of the front window 2. It is connected to the upper ends of the left and right front pillars 3, 3, and the front pillar 3
．． 3 together, and the front window 2
It supports the upper end. Further, 5 is a center frame, and the center frame 5 includes a horizontal portion 5a extending in the longitudinal direction of the vehicle body and having a front end connected to the center portion of the front header 4, and a horizontal portion 5a extending downward from the rear end of the horizontal portion 5a. A floor panel 1 whose extended lower end constitutes the floor part of the vehicle body 1
1 and the vertical portion 5b connected to the vertical portion 5b.

The 2F floor panel 11 also includes a front 1-floor panel 13 in which a floor tunnel portion 12 is formed in the center that bulges upward and extends in the front-rear direction of the vehicle body, and a front floor panel 13 located behind and one step higher than the front floor panel 13. The first floor panel 14 has an inclined part formed at the front end of the rear floor panel 14, and a part extending in the vehicle width direction at a predetermined distance rearward from the inclined part. First and second cross members 16 and 17 are provided, and the first and second cross members 16 and 17 are provided. The second cross members 16, 17 each form an open cross section with the rear floor panel 14.

Furthermore, 18 is a rear cab side that constitutes a side wall at the rear of the vehicle body, and the V cab side 18 is a closed space with a cab side panel 20 disposed on the outside of the cow body and a cab side panel 20 disposed on the inside of the vehicle interior. It is formed into a planar shape, and at the end of the rear cab side 18, there is a center pillar 21 extending upward on both left and right sides of the floor panel 11.
is formed.

Further, a tie)7 house 22 is formed on the cab side panel 20 at a position corresponding to the rear width wheel and curvedly bulged inward of the vehicle body, and the tire house 22 has a suspension tower portion 23. It is formed to protrude toward the inside of the vehicle body and constitutes a part of the cab side panel 20.

Then, 1. Freon 1 to header 4 and center fly Lz
The connection structure between the front end portion of the horizontal portion 5a and the horizontal portion 5a is detailed in FIGS. 2 to 5. In Figures 2 to 5,
The front header 4 includes an upper panel 41 and a lower panel 4.
The horizontal portion 5a of the center frame 5 is formed into a rectangular closed cross section by the frame upper 51 and the frame lower 52. The front end of the horizontal part 58 of the center frame 5 is set such that the height of its rectangular closed section decreases in the + It has a reinforcing bead portion 53.53 formed by reinforcing it. Therefore, by joining the frame upper 51 of the center frame 5 to the lower panel 42 of the L control header 4 via the patch plate 54, the horizontal portion 5a+n end of the center frame 5 is connected to the front header 4. ing. Incidentally, reference numeral 43 is a rain rail formed at the rear end of the front header 4 and the rain rail 43 is covered with a cover member up to a position above the rain rail 43. Further, 55 is a rim provided on the inside of the vehicle to cover the center frame 5.

On the other hand, to explain the connection structure between the floor panel 11 and the lower end of the vertical portion 5b of the center frame 5, the vertical portion 5b of the center frame 5 is connected to the frame front 56.
It is formed into a rectangular closed section shape by the frame reel A757, and the length dimension of this closed section in the longitudinal direction of the vehicle body is set to gradually increase downwardly at the lower part of the vertical portion 5b. The vertical part 5bl"OH part of the center frame 5 straddles the front part 1-the floor 1-channel part 12 of the floor panel 13 in the vehicle width direction on the front side, and the first part of the A7 floor panel 14 on the rear side. Cross member 1
6 is connected and fixed to the floor panel 11 while straddling the front and back direction of the vehicle body.

C1 A reinforcement 24 extends in the vehicle width direction above the rear floor panel 14. 1 The reinforcement 24 extends in the vehicle width direction as shown in FIGS. It consists of a reinforcement main body 25 with an extending cross-section ν8-shaped frame structure +jl, and brackets 26 attached to both ends of the reinforcement main body 25. It is joined to the upper surface of the suspension tower part 23 through the formed mounting holes 27a, 27a, and connected to the upper part of the left cab side 18.18. There is.

Further, between the reinforcement 24 and the vertical portion 5b of the center frame 5, there are 13 connecting portions 30 having a rectangular frame structure extending in the longitudinal direction of the vehicle body. vertical part 5 of center frame 5
The rear end of the reinforcement body 25 is connected to the rear surface of the reinforcement body 25 by tightening mounting bolts 31a and 31b with the tightening nuts 1 to 24. and the vertical portion 5b of the center frame 5 are connected to each other.

Note that 17a and 17b are respectively designated by the second rear flap [which forms an open cross section with the core panel 14 and extends in the vehicle width direction].
34 is a connection bracket for connecting the reinforcement members 1 to 25 and the connection member 30, 35 is a A bell extending in the longitudinal direction of the vehicle body at the upper part of the bridge 18 [-line reinf A-
Smen [~, 3G] is a leased pension device housed in the tower part 23 marked 1. Further, in FIG. 1, 37 is a reinforcement that connects the vertical portion 5b of the center frame 5 and the center pillar 21, 38 is a side member extending in the longitudinal direction of the vehicle body at both ends of the floor panel 11, and 39 is a reinforcement member that connects the vertical portion 5b of the center frame 5 and the center pillar 21; This is a side sill that corresponds to the side member 38 and extends in the longitudinal direction of the vehicle body.

Therefore, in the above embodiment, the left and right front pillars 3.3 are connected by the closed-section front header 4 located at the upper end of the front window 2, and the central part of the rudder 4 is connected to the front. Since it is connected to the floor panel 11 by a center frame 5 having a substantially inverted shape and consisting of a horizontal portion 5a and a vertical portion 5b having a closed cross section,
Due to the strong connection structure of the front header 4 and center frame 5, the rigidity of these strength members can significantly increase the rigidity of the vehicle body, especially the rigidity around the front window 2 and the rigidity of the floor panel 11.
This is extremely effective in countering vehicle body vibrations and ensuring occupant safety in the event of a collision.

In addition, brackets 26 are provided at both ends of the reinforcement members 24 extending in the vehicle width direction on the upper surfaces of the left and right rear cab sides 18 that constitute the side walls of the rear part of the vehicle body, that is, on the upper surfaces of the suspension tower portions 23 that constitute a part of the cab side panels 20 on both the left and right sides. Since the left and right V cab sides 18, 18 are connected by the reinforcement 24, the rigidity around the rear cab side 18 is improved. Moreover, since the brackets 26 forming both ends of the reinforcement 24 are joined to the upper surface of the highly rigid suspension tower section 23, the mounting strength of both ends of the reinforcement member 24 is high, and the mounting strength around the A7 cab side 18 is increased. Rigidity in the vehicle width direction is further improved.

Further, since the vertical portion 5b of the center frame 5 and the reinforcement 24 are connected by a connecting member 30 extending in the front-rear direction, the center frame 5 and the rear cab side 18 are connected to each other by the connecting member 30 and the reinforcement 24. The rigidity around the rear cab side 18 in the longitudinal direction of the vehicle body is also improved, and as a result, the rigidity around the rear cab side 18 is significantly improved.

In the above embodiment, the reinforcement 24 is attached to the suspension tower section 23 that constitutes a part of the cab side panel 20.
I tried to join the edges of the side panel 2, but the side panel 2
0 may be provided with a bracket having an abbreviated cross-section, and the ends of the reinforcement members 1 to 24 may be placed and joined on the horizontal portion of the bracket, and the same functions and effects as in the above embodiment can be obtained. Play 1! 'J is original.

Further, in the above embodiment, the connection structure between the front header 4 and the front end of the horizontal part 5a of the center frame 5 and the connection structure between the lower end of the vertical part 5b of the center frame 5 and the floor panel 11 are connected by welding. However, it goes without saying that the connection may be made by bolting instead of welding. Further, in this case, bolt insertion holes may be provided on a plurality of sides in the longitudinal direction of the vehicle body so that the arrangement position of the center frame can be moved and adjusted in the longitudinal direction of the vehicle body.

<Effects of the Invention> As described above, according to the present invention, the left and right front pillars are connected by the front header located at the upper end of the windshield. At the same time, the central part of the front header is connected to the floor panel by a center frame consisting of a horizontal part and a vertical part.
The rigidity around the window and the floor panel can be significantly increased.

Furthermore, the left and right rear cab sides are connected by a reinforcement extending in the vehicle width direction, and the reinforcement and the vertical part of the center frame are
+Since they are connected by a connecting member extending in the rearward direction, the rigidity around the rear cab side in both the vehicle width direction and the longitudinal direction is improved. Here, if both ends of the reinforcement are joined to a part of the suspension tower, the rigidity of the suspension tower section is high, so the rigidity around the rear cab side is further improved.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawing shows an embodiment of the present invention, and is a perspective view showing the overall structure of the vehicle body structure of the first automobile. FIG. 3 is a perspective view of the front end of the horizontal portion of the interframe, and FIGS. 4 and 5 are sectional views taken along line IV-IV and V-V in FIG. 2. Fig. 6 is an enlarged sectional view taken at - in Fig. 1, and Fig. 7 is a perspective view showing the connection structure between the rainfon 1 and the connecting member.
・Front leaflet 4...Front header, 5...Center frame,...Horizontal part, 5b...Vertical part, 11.
・・Floor spring 18・・Rileki 1F ugly side, 20・
・Cab Cynel, 23・Suspension tower part, 24・
...Reinforcement, 30...Connecting member. Patent Applicant: Mazda Motor Corporation Representative 1) Hirozu is □2 Figure 4 a, dopao Figure 5 procedural amendment (method) February 24, 1985 Patent Application No. 243420 No. 2, Name of the invention Automobile body structure 3 Relationship with the Shu case for amendment Patent applicant address 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Name (313) Mazda Motor Corporation Ne1 representative Yamamoto Ken - 4 agents Address: 550 Telephone 06 (445) 2128
Address: Mr. Taihei Building, 1-4-8 Utsubohonmachi, Nishi-ku, Osaka
Name Patent Attorney (7793) 1) Ko 5, date of amendment order

Claims (2)

[Claims] (1) In an open-top automobile in which the upper part of the cabin is open, there is a front header that is arranged at the upper end of the front window and connects the left and right front pillars, and a front header that extends in the longitudinal direction of the vehicle body and whose front end is the center of the front header. A center frame consisting of a horizontal part connected to the horizontal part and a vertical part that extends downward from the rear end of the horizontal part and whose lower end is connected to the floor panel, and connects the upper parts of the left and right rear cab sides that make up the side walls at the rear of the vehicle body. 1. A vehicle body structure for an automobile, comprising: a reinforcement; and a connecting member that connects the reinforcement to a vertical portion of the center frame. (2) The automobile body structure according to claim (1), wherein the reinforcement connects the left and right suspension tower portions forming a part of the cab side panel.