JP2008137411A - Upper cross structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively suppress horizontal twisting and vertical twisting of the whole of a body by an upper cross body or the like. <P>SOLUTION: The upper cross structure comprises an upper cross body 12 extending in a vehicular width direction at a rear part position of a seat back 3b, and a pair of right and left connecting members 22 connecting both end portions of the upper cross body 12 to a body side wall 1s in the body of a convertible. The connecting members 22 are connected to the upper cross body 12 at base end portions, and constituted to extend forward at the same level with the upper cross body 12. Outside surfaces of the connecting members 22 are connected to a body inside wall 1s, and tip end portions are connected to a center pillar 5. At a corner portion between the inside surface 222 of the connecting member 22 and a front surface 120 of the upper cross main body 12, a reinforcing member 30 is fixed while one end side and the other end side of an arc-shaped side surface 32 is superimposed on an inside surface 222 and the front surface 120. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an open car body comprising an upper cross body extending in the vehicle width direction at a rear position of the seat back and a pair of left and right connecting members for connecting both ends of the upper cross body to the side walls of the body. Concerning structure.

A technique related to an upper cross structure in an open car body is described in Patent Document 1.
In the upper cross structure in the body of the open car described in Patent Document 1, as shown in FIGS. 6 (A) and 6 (B), a connection having an approximately L-shaped plane is formed at both ends of the upper cross body 101 extending in the vehicle width direction. The member 103 is connected so as to protrude forward from the upper cross body 101. Further, a holding portion 105 of the link bracket 104 is connected to the distal end portion of the connection member 103.
The link bracket 104 is a bracket that supports a link mechanism of a so-called open / close hard roof, and a bracket body 106 of the link bracket 104 is connected to a side panel that constitutes a side wall of the body.
JP 2006-160143 A

In the above-described conventional upper cross structure, the connecting members 103 connected to both ends of the upper cross main body 101 are configured such that the tip ends are indirectly connected to the side panels of the body via the link bracket 104. That is, the entire outer surface of the connecting member 103 is not directly connected to the side panel of the body. For this reason, when the vertical or horizontal twist of the body is applied from the side panel to the link bracket 104, the connecting member 103, and the upper cross body 101, the twisting force is absorbed by the link bracket 104 and the connecting member 103. It is not efficiently transmitted to the upper cross body 101.
Further, the link bracket 104 is connected to the side panel of the body and is not directly connected to the center pillar of the body. For this reason, the torsion of the entire body applied to the center pillar is not efficiently transmitted to the upper cross body 101.
Therefore, in the above-described upper cross structure, it is difficult to efficiently suppress horizontal and vertical twists of the entire body by the upper cross body 101 and the like.

  The present invention has been made to solve the above-described problems, and the problem to be solved by the present invention is to effectively suppress the horizontal twist and the vertical twist of the entire body in the upper cross body or the like. Is to be able to do it.

The above-described problems are solved by the inventions of the claims.
According to the first aspect of the present invention, in the body of the open car, an upper cross body that extends in the vehicle width direction at the rear position of the seat back, and a pair of left and right connecting members that connect both ends of the upper cross body to the side walls of the body; The connecting member is configured such that a base end portion of the connecting member is connected to the upper cross main body and extends forward from the upper cross main body, and the vehicle width of the connecting member is An outer surface located on the outer side in the direction is connected to the inner side wall of the body, and a front end portion of the connecting member is connected to a center pillar of the body, and an inner side surface located on the inner side in the vehicle width direction of the connecting member And a reinforcing member having an arc-shaped side surface at a corner between the front surface of the upper cross body and one end side and the other end side of the arc-shaped side surface. Characterized in that it is fixed in a state of overlapping each the front of the scan body.

According to the present invention, both ends of the upper cross body are connected to the inner side wall of the body and the center pillar by the connecting member configured to extend forward from the upper cross body. For this reason, when the body is twisted in the vertical direction, the twist is mainly applied from the center pillar to the connection member, and the connection member is twisted in the vertical rotation direction with respect to the upper cross body. However, at the corners of the inner side surface of the connecting member in the vehicle width direction and the front surface of the upper cross body, the reinforcing member connects the one end side and the other end side of the arc-shaped side surface to the inner side surface of the connecting member and the upper cross. It is fixed in a state of being overlapped on the front surface of the main body. As a result, even if the connecting member receives a force that twists the upper cross body in the vertical rotation direction, the torsional force is concentrated on the connection portion between the connecting member and the upper cross body by the function of the reinforcing member. Without being transmitted to the central portion of the upper cross body. In other words, the vertical twist of the body is efficiently applied to the entire upper cross body via the center pillar and the connecting member, so that the vertical twist of the body can be suppressed by the upper cross body.
When the body is twisted in the horizontal direction, the twist is mainly applied from the center pillar to the connection member, and the connection member is twisted in the horizontal rotation direction with respect to the upper cross body. However, as described above, at the corners between the inner side surface of the connecting member located in the vehicle width direction and the front surface of the upper cross body, the reinforcing member having the arc-shaped side surface is provided on the arc-shaped side surface as described above. The one end side and the other end side are fixed in a state where they are overlapped on the inner side surface of the connection member and the front surface of the upper cross body. As a result, even if the connection member receives a force that is twisted in the horizontal direction with respect to the upper cross body, the torsional force is concentrated on the corners of the connection member and the upper cross body by the function of the reinforcing member. Rather, the upper cloth body is almost evenly distributed. Accordingly, the twisting force in the horizontal direction of the body is efficiently transmitted to the upper cross body, and the horizontal twist of the body can be effectively suppressed by the upper cross body.

According to the invention of claim 2, the upper cross body is configured to extend linearly in the vehicle width direction, and is formed in a square hollow closed cross-sectional shape by the first plate member and the second plate member. And
For this reason, the 1st board | plate material and 2nd board | plate material which comprise an upper cross main body can be manufactured by a bending process. For this reason, cost reduction can be aimed at compared with the case where the 1st board material and the 2nd board material are manufactured by press processing.
According to the invention of claim 3, the connection member is connected to the upper cross body so that the upper surface of the upper cross body and the upper surface of the connection member are substantially flush with each other.
For this reason, the strength in the upper cross structure is improved, and the twisting of the body can be suppressed.

According to the invention of claim 4, the connecting member is formed so that the base end portion is wide and the distal end side is gradually narrowed in plan view, and the outer side surface of the connecting member forms the inner side wall of the body. A hollow closed cross section is formed by the connecting member and the side wall member in a state where the connecting member and the side wall member are connected, and a pillar inner and a pillar outer are provided between the distal end portion of the connecting member and the side wall member. The pillar inner of the center pillar made of is sandwiched and fixed.
In this way, the connecting member is formed so that the base end portion is wide and the distal end side is gradually narrowed in plan view, so that the reinforcing member is generally flat from the inner surface to the arc-shaped side surface. It becomes possible to form in a substantially arc shape. For this reason, it becomes difficult for the twisting force to concentrate on the corners of the connecting member and the upper cross body.
Moreover, since it is the structure by which a hollow closed cross section is formed by a connection member and a side wall member, the intensity | strength of the longitudinal direction of the said connection member improves.
Further, since the pillar inner of the center pillar is sandwiched and fixed between the distal end portion of the connecting member and the side wall member, the connection between the distal end portion of the connecting member and the center pillar becomes strong.
According to invention of Claim 5, the unevenness | corrugation extended in the direction along the said circular arc is formed in the circular arc-shaped side surface of a reinforcement member, It is characterized by the above-mentioned.
For this reason, the compressive strength and tensile strength of the reinforcing member at the corners of the connecting member and the upper cross body are improved.

  According to the present invention, the horizontal twist of the body and the vertical twist of the body can be efficiently suppressed by the upper cross structure.

[Embodiment 1]
Hereinafter, the upper cross structure according to the first embodiment of the present invention will be described with reference to FIGS. Here, FIG. 1 is a schematic perspective view showing a seat portion in a body of an open car having an upper cross structure according to the present embodiment, FIG. 2 is an enlarged perspective view taken along the line II in FIG. 1, and FIG. IIIA and IIIB-IIIB arrow cross-sectional views, and FIG. 4 is a IV-IV arrow vertical cross-sectional view of FIG. FIG. 5 is a perspective view showing components of the upper cross structure.
In addition, front and rear, right and left and up and down in the figure correspond to front and rear, right and left and up and down of the vehicle.

<About the outline of body 1>
As shown in FIG. 1, the body 1 of the open car including the upper cross structure 10 according to the present embodiment is configured so that two seats 3 (see a two-dot chain line) can be installed in the vehicle width direction. . Further, at the left front side position of the left seat 3 and the right front side position of the right seat 3, there are formed entrances 4 that are opened and closed by doors (not shown). A center pillar 5 that constitutes a frame of the body 1 is erected in a columnar shape on the rear side of the left and right entrances 4 at a position just beside the seat 3.
Further, an upper cross body 12 that similarly constitutes a frame of the body 1 is horizontally disposed at a rear position of the seat back 3b of the seat 3, and both ends of the upper cross body 12 are connected to the connecting member 20 and the reinforcing member 30. To the side wall of the body 1 and the upper part of the center pillar 5. In other words, the upper cross body 10, the connecting member 20, the reinforcing member 30 and the like constitute the upper cross structure 10 according to the present embodiment.
Further, the upper cross body 12 is provided with a mountain-shaped guard bar 10b at a position corresponding to the left and right seat backs 3b.

<About the upper cross body 12>
Next, the upper cross body 12 constituting the upper cross structure 10 will be described.
The upper cross body 12 is a rectangular tube-shaped member that extends linearly in the vehicle width direction. As shown in FIG. 5C, the first plate member 13 and the second plate member 14 are formed in a substantially L-shaped cross section. It consists of and. The first plate member 13 is a member constituting the front plate 120 and the upper plate 124 of the upper cloth body 12, and the lower receiving portion 13 d in which the second plate member 14 (described later) is aligned with the lower end edge of the front plate 120. Is formed. In addition, an upper receiving portion 13u is formed on the rear end edge of the upper plate 124 of the first plate member 13 so that the second plate member 14 is similarly aligned therewith.
The second plate member 14 is a member that constitutes the lower plate 123 and the rear plate 125 of the upper cloth main body 12, and the front end edge 14 d of the lower plate 123 is bent downward, so that the lower plate of the first plate member 13 is received. It is comprised so that it may match | combine with the part 13d. Further, the upper end edge 14 u of the rear plate 125 of the second plate member 14 is bent about 90 ° to the rear side so as to be matched with the upper receiving portion 13 u of the first plate member 13.
That is, the lower receiving portion 13 d of the first plate member 13 is aligned with the front end edge 14 d of the second plate member 14 and connected by welding or the like, and the upper receiving portion 13 u of the first plate member 13 is connected to the upper end of the second plate member 14. The upper cross body 12 is formed in a square hollow closed cross section by being connected to the edge 14u by welding or the like.

<About the connecting member 20>
The connection member 20 constituting the upper cross structure 10 is a member for connecting the end portion of the upper cross body 12 and the center pillar 5 and connecting the end portion of the upper cross body 12 to the side wall of the body 1.
The connection member 20 includes a connection member main body 22 (see FIGS. 2 and 5A) that connects the end of the upper cross main body 12 and the center pillar 5, and the end of the upper cross main body 12 constitutes the side wall of the body 1. The upper cross extension 21 is connected to the columnar portion 1h (see FIG. 3B). Note that FIG. 3B is a cross-sectional view taken along arrow IIIB-IIIB in FIG.
As shown in FIG. 5A, the connecting member main body 22 is a member having a substantially U-shaped longitudinal section (section taken along the arrow II) opened on the side wall of the body 1, and includes an upper plate 221, an inner plate 222, a lower plate Plate 223. The upper plate 221 and the lower plate 222 have substantially the same planar shape and are formed so as to gradually become narrower as they approach the tip. Further, the outer edge 221c of the upper plate 221 in the vehicle width direction is bent upward at a right angle, and the outer edge 223e of the lower plate 223 in the vehicle width direction is bent downward at a right angle. Then, in a state where the connection member main body 22 is held horizontally, the end edge 221c of the upper plate 221 and the end edge 223e of the lower plate 223 are connected to the inner wall member 1s of the body 1 as shown in FIG. Is done. Thereby, the cylindrical body extended in the front-back direction is formed by the connection member main body 22 and the inner wall member 1s of the body 1.
Then, the pillar inner 5 e of the center pillar 5 is fixed between the front end of the connection member main body 22 and the inner wall member 1 s of the body 1.

As shown in FIG. 5A, the upper plate 221 of the connection member main body 22 protrudes rearward from the inner plate 222 and the lower plate 223 by the front-rear width of the upper cross main body 12, and the protrusion The edge 221x is bent upward at a right angle. Then, the protruding end edge 221 x of the upper plate 221 of the connection member main body 22 is connected to the upper cross extension 21.
The inner plate 222 of the connecting member body 22 is bent until the base end edge 222k is parallel to the front plate 120 of the upper cross body 12, and the base end edge 222k of the inner plate 222 is bent to the end of the front plate 120. Connected to the edge 121. Further, the inner plate 222 of the connection member main body 22 is curved in a concave arc shape from the base end portion to the tip end, and a concave portion 222m extending from the base end portion to the tip end side is formed in the inner plate 222. . Thus, the bending strength of the horizontal direction of the connection member main body 22 improves by forming the recessed part 222m.
As described above, the upper cross extension 21 of the connecting member 20 is a member that connects the end of the upper cross main body 12 to the columnar portion 1h (see FIG. 3B) that constitutes the side wall of the body 1. It is formed in a rectangular tube shape with a configuration substantially equal to that of the cross body 12.

<Reinforcing member 30>
The reinforcing member 30 is a member that is fixed to the inside of the corner between the connection member main body 22 and the upper cross main body 12 and reinforces the connection portion between the connection member main body 22 and the upper cross main body 12.
As shown in FIGS. 2 and 5B, the reinforcing member 30 includes an arc-shaped side plate 32 formed in a planar arc shape and a support plate 34 formed in the center of the upper end of the arc-shaped side plate 32. Yes.
The arc-shaped side plate 32 of the reinforcing member 30 is connected in a state where one end side in the horizontal direction is overlapped with the inner plate 222 of the connection member main body 22 and the other end side is connected in a state overlapped with the front plate 120 of the upper cross main body 12. Is done. Here, the curvature of the arc-shaped side plate 32 of the reinforcing member 30 is set to a curvature that is substantially equal to the curvature of the inner plate 222 of the connection member main body 22 and gently overlaps the front plate 120 of the upper cross main body 12. Yes. That is, at the corners of the inner plate 222 of the connection member main body 22 and the front plate 120 of the upper cross main body 12, the reinforcing member 30 connects the surface of the arc-shaped side plate 32 to the surface of the inner plate 222 of the connection member main body 22 and the upper cross. It is fixed to the surface of the front plate 120 of the main body 12 in a substantially continuous state.
For this reason, the surface of the inner plate 222 of the connecting member main body 22 corresponds to the inner side surface of the connecting member in the vehicle width direction inside of the present invention, and the surface of the front plate 120 of the upper cross main body 12 is the upper cross main body of the present invention. It corresponds to the front of. Further, the surface of the reinforcing member 30 in the arc-shaped side plate 32 corresponds to the arc-shaped side surface of the reinforcing member in the present invention.

A bolt hole 32b is formed at one end of the arc-shaped side plate 32 of the reinforcing member 30 at a position corresponding to the bolt hole 222b (see FIG. 5A) of the inner plate 222 of the connection member main body 22. A horizontally long welding hole 32w is formed below the hole 32b. Further, on the other end side of the arc-shaped side plate 32, a bolt hole 32 b is formed at a position corresponding to the bolt hole 120 b (see FIG. 5C) of the front plate 120 of the upper cross body 12. A vertically long welding hole 32w is formed on the upper side of 32b.
Further, the arc-shaped side plate 32 of the reinforcing member 30 is provided with a groove 32m and a protrusion 32t (unevenness) from one end side to the other end side.
As shown in FIG. 2, the support plate 34 of the reinforcing member 30 is overlapped with the upper plate 221 of the connection member main body 22 and the upper plate 124 of the upper cross main body 12 to position the reinforcing member 30 in the height direction. It is a part and is bent at a right angle to the arc-shaped side plate 32.

<About the construction procedure of the upper cross structure 10>
Next, the construction procedure of the upper cross structure 10 will be described.
First, the plate material in the first plate member 13 of the upper cloth body 12 cut into a predetermined shape and the plate member of the second plate member 14 are bent, so that the first plate member 13 and the second plate member 14 are formed. Molded. In parallel with the molding of the first plate member 13 and the second plate member 14, the connection member main body 22, the upper cross extension 21, and the reinforcing member 30 of the connection member 20 are press-molded.
Next, as shown in FIG. 3B, the upper cross extension 21 constituting the connecting member 20 is horizontally connected to the columnar portions 1h of the left and right bodies 1 so as to protrude in the vehicle width inner direction. . Here, “connection” includes not only connection by welding but also connection by combining welding and bolting (screwing) or the like.
Furthermore, both ends of the second plate member 14 of the upper cloth body 12 are connected to the left and right upper cloth extensions 21. Thereby, the 2nd board | plate material 14 of the upper cross main body 12 is arrange | positioned so that it may extend linearly in a vehicle width direction.

Next, the edge 221c of the upper plate 221 of the connection member main body 22 and the edge 223e of the lower plate 223 are horizontally connected to the inner wall member 1s of the body 1 from the inside as shown in FIG. Furthermore, at the tip of the connection member main body 22, the end edge 221 c of the upper plate 221 and the end edge 223 e of the lower plate 223 are connected to the side surface of the pillar inner 5 e of the center pillar 5 from the inside. Here, as shown in FIG. 3A showing the IIIA-IIIA cross section of FIG. 2 and FIG. 4 showing the IV-IV cross section of FIG. 2, the inner wall member 1s of the body 1 is in contact with the pillar inner 5e of the center pillar 5. Connected from the outside. For this reason, the connecting member main body 22 is connected to the pillar inner 5 e and the inner wall member 1 s of the body 1 from the inside, so that the pillar inner 5 e is sandwiched between the inner wall member 1 s of the body 1 and the connecting member main body 22. .
Here, the outer panel 1p is connected to the outside of the pillar outer 5f of the center pillar 5 through the outer reinforcement 1y as shown in FIGS. 2, 3A, and 4. In FIG. 3B, the outer ring force 1y and the outer panel 1p are omitted.

Further, as shown in FIG. 2, the base end portion of the upper plate 221 of the connection member main body 22 covers the upper cross extension portion 21 from above, and the protruding end formed at the base end portion of the upper plate 221. The edge 221x is connected to the upper cross extension 21. Moreover, the base end edge 222k of the inner side plate 222 of the connection member main body 22 is overlaid on the front surface of the upper cross extension part 21, as shown in FIG.
Next, the upper receiving portion 13u (see FIG. 5C) of the first plate member 13 of the upper cloth body 12 is connected to the upper edge 14u of the second plate member 14 so as to be connected under the first plate member 13. The receiving portion 13d is connected to the front end edge 14d of the second plate member 14 so as to be connected. Thereby, the upper cross main body 12 is shape | molded by the square hollow closed cross-sectional shape.
Further, both end portions of the first plate 13 of the upper cloth body 12 are connected to the left and right upper cloth extensions 21. Further, the end edge 121 of the front plate 120 of the first plate member 13 is formed between the base end edge 222k of the inner plate 222 of the connection member main body 22 and the front surface of the upper cross extension portion 21, as shown in FIG. Connected in a stacked state. As a result, both end portions of the upper cross body 12 are positioned on the left and right connection member bodies 22 configured to extend forward at the same height as the upper cross body 12 and the extension line of the upper cross body 12. The upper cross extension 21 is connected to the inner wall of the body 1. Further, the upper surfaces of the left and right connecting member main bodies 22 and the upper surface of the upper cross main body 12 are substantially flush.

Next, the reinforcing member 30 is disposed inside the corner portion of the connecting member main body 22 and the upper cross main body 12, and the support plate 34 of the reinforcing member 30 is above the upper plate 221 of the connecting member main body 22 and the upper cross main body 12. Overlaid on the plate 124. In this state, the plurality of bolt holes 32 b in the arc-shaped side plate 32 of the reinforcing member 30 are respectively aligned with the bolt holes 222 b of the inner plate 222 of the connection member main body 22 and the bolt holes 120 b of the front plate 120 of the upper cross main body 12. The reinforcing member 30 is bolted to the connecting member main body 22 and the upper cross main body 12. As a result, the reinforcing member 30 is positioned in a state where the arc-shaped side plate 32 is substantially continuous with the inner plate 222 of the connection member main body 22 and the front plate 120 of the upper cross main body 12. Next, the reinforcing member 30 is welded to the inner plate 222 of the connection member main body 22 and the front plate 120 of the upper cross main body 12 using the welding holes 32w, and the upper cross structure 10 is completed.
In the present embodiment, after the second plate member 14 of the upper cross body 12 is attached to the body 1, the connection member body 22 is attached to the body 1, and then the first plate member 13 is assembled to the second plate member 14. Although the example of attaching was shown, it is also possible to form the upper cross body 12 by combining the second plate material 14 and the first plate material 13 and then attach the upper cross body 12 to the body 1.

<Advantages of Upper Cross Structure 10 According to the Present Embodiment>
As described above, according to the upper cross structure 10 according to the present embodiment, both ends of the upper cross main body 12 are connected to the inner side wall 1s of the body 1 and the center pillar by the connection member main body 22 extending forward from the upper cross main body 12. 5 is connected. Therefore, when the body 1 is twisted in the vertical direction, the twist is mainly applied from the center pillar 5 to the connection member main body 22, and the connection member main body 22 is twisted in the vertical rotation direction with respect to the upper cross main body 12. . However, the reinforcing member 30 connects one end side and the other end side of the arc-shaped side plate 32 at corners of the inner plate 222 located on the inner side in the vehicle width direction of the connection member main body 22 and the front plate 120 of the upper cross main body 12. The connecting member body 22 is fixed to the inner plate 222 of the connecting member main body 22 and the front plate 120 of the upper cross body 12 in a state of being overlapped. Thereby, even if the connection member main body 22 receives a force that twists the upper cross body 12 in the up-and-down rotation direction, the torsional force is applied to the connection member main body 22 and the upper cross by the function of the reinforcing member 30. The light is transmitted to the central portion of the upper cross body 12 without concentrating on the connection portion of the main body 12. That is, since the vertical twist of the body 1 is efficiently applied to the entire upper cross body 12 via the center pillar 5 and the connecting member main body 22, the upper cross body 12 suppresses the vertical twist of the body 1. be able to.
Further, when the body 1 is twisted in the horizontal direction, the twist is mainly applied from the center pillar 5 to the connection member main body 22, and the connection member main body 22 is twisted in the horizontal rotation direction with respect to the upper cross main body 12. However, as described above, at the corners of the inner plate 222 located on the inner side in the vehicle width direction of the connection member main body 22 and the front plate 120 of the upper cross main body 12, the reinforcing member is provided with the arc-shaped side plate 32 as described above. The member 30 is fixed in a state where one end side and the other end side of the arc-shaped side plate 32 are overlapped with the inner plate 222 of the connection member main body 22 and the front plate 120 of the upper cross main body 12. Thereby, even if the connecting member main body 22 receives a force that is twisted in the horizontal direction with respect to the upper cross main body 12, the torsional force is applied to the connecting member main body 22 and the upper cross main body 12 by the function of the reinforcing member 30. Are not concentrated on the corners of the upper cross body 12 and are almost uniformly distributed. Accordingly, the horizontal twisting force of the body 1 is efficiently transmitted to the upper cross body 12, and the horizontal twisting of the body 1 can be efficiently suppressed by the upper cross body 12.
In addition, since the upper surfaces of the left and right connection member bodies 22 and the upper surface of the upper cloth body 12 are substantially flush with each other, the strength of the upper cloth structure 10 is improved and the twist of the body 1 can be suppressed.

Further, the upper cross body 12 is configured to extend linearly in the vehicle width direction, and is formed in a square hollow closed cross section by the first plate member 13 and the second plate member 14. For this reason, the 1st board | plate material 13 and the 2nd board | plate material 14 which comprise the upper cross main body 12 can be manufactured by a bending process. For this reason, cost reduction can be aimed at compared with the case where the 1st board | plate material 13 and the 2nd board | plate material 14 are manufactured by press work.
Further, the connecting member main body 22 is formed so that the base end portion is wide and the distal end side is gradually narrowed in plan view, and the entire area from the inner plate 222 of the connecting member main body 22 to the arc-shaped side plate 32 of the reinforcing member 30 is formed. In general, it is formed in a substantially circular arc shape. For this reason, the twisting force is less likely to concentrate on the corners of the connection member main body 22 and the upper cross main body 12.
Moreover, since it is the structure by which a hollow closed cross section is formed by the connection member main body 22 and the side wall member 1s, the intensity | strength of the longitudinal direction of the connection member main body 22 improves.
Further, since the pillar inner 5e constituting the inner wall of the center pillar 5 is sandwiched and fixed between the tip of the connection member main body 22 and the side wall member 1s, the tip of the connection member main body 22 and the center pillar 5 are fixed. Connection is strong.
Further, the arc-shaped side plate 32 of the reinforcing member 30 is formed with protrusions 32t and groove portions 32m extending in the direction along the arc, so that the reinforcing member 30 at the corner between the connecting member main body 22 and the upper cross main body 12 is formed. The compressive strength and tensile strength of are improved.

<Modification example of upper cross structure 10>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, the upper cross extension 21 is formed separately from the connection member main body 22 and the upper cross main body 12, but the upper cross extension 21 may be formed integrally with the connection member main body 22. Alternatively, it may be formed integrally with the upper cross body 12.
Moreover, although the example which forms the connection member main body 22 so that it may become tapered was shown, it is also possible to form the connection member main body 22 by the width dimension equal to the front-back direction. Furthermore, although the example which forms the connection member main body 22 in a longitudinal cross-section substantially U-shape was shown, combining the 1st board | plate material 13 and the 2nd board | plate material 14 which were longitudinal cross-section substantially L-shaped like the upper cross main body 12. FIG. It is also possible to configure by.

It is a model perspective view showing the seat part in the body of an open car provided with the upper cross structure concerning Embodiment 1 of the present invention. FIG. 2 is an enlarged perspective view taken along arrow II in FIG. 1. FIG. 3 is a cross-sectional view taken along the line IIIA-IIIA in FIG. 2 (FIG. A), and a cross-sectional view taken along the line IIIB-IIIB in FIG. FIG. 4 is a vertical sectional view taken along the line IV-IV in FIG. 2. It is a perspective view showing the component of an upper cross structure, and is a perspective view (A figure) of a connection member main body, a perspective view (B figure) of a reinforcement member, and an exploded perspective view (C figure) of an upper cross main body. It is a perspective view (A figure) showing the conventional upper cross structure, and a top view (B figure) showing the connection structure of an upper cross main body, a connection member, and a holding | maintenance part.

Explanation of symbols

1 Body 1s Inner Wall Member (Side Wall Member Forming Inner Wall)
3 seat 3b seat back 5 center pillar 5e pillar inner 5f pillar outer 12 upper cross body 13 first plate member 14 second plate member 20 connecting member 21 upper cross extension (connecting member)
22 Connection member body (connection member)
30 Reinforcing member 32 Arc-shaped side plate 32t Projection (unevenness)
32m groove (unevenness)
120 Front cross body front plate (front of upper cross body)
124 Upper plate of upper cloth body (upper surface of upper cloth body)
221 Upper plate of connecting member body (upper surface of connecting member)
222 Inner plate of connecting member body (inner side of connecting member)

Claims (5)

An open car body has an upper cross structure including an upper cross body extending in the vehicle width direction at a rear position of the seat back, and a pair of left and right connecting members that connect both ends of the upper cross body to the side walls of the body. And
The connection member is configured such that a base end portion is connected to the upper cross main body and extends forward from the upper cross main body,
An outer surface located on the vehicle width direction outer side of the connection member is connected to the inner side wall of the body, and a tip end portion of the connection member is connected to a center pillar of the body,
A reinforcing member having an arcuate side surface connects the one end side and the other end side of the arcuate side surface at a corner portion between an inner side surface of the connecting member located in the vehicle width direction and the front surface of the upper cross body. An upper cloth structure, wherein the upper cloth structure is fixed to the inner side surface of the member and the front surface of the upper cloth main body in an overlapping state. The upper cross structure according to claim 1,
The upper cross body is configured to extend linearly in the vehicle width direction, and is formed into a square hollow closed cross-section by a first plate member and a second plate member. The upper cloth structure according to claim 2,
The upper cross structure, wherein the connection member is connected to the upper cross body so that an upper surface of the upper cross body and an upper surface of the connection member are substantially flush with each other. The upper cross structure according to any one of claims 1 to 3,
The connecting member is formed so that the base end portion is wide and the distal end side is gradually narrowed in plan view,
In a state where the outer surface of the connection member is connected to a side wall member that forms the inner side wall of the body, a hollow closed cross section is formed by the connection member and the side wall member.
An upper cross structure characterized in that the pillar inner of the center pillar composed of a pillar inner and a pillar outer is sandwiched and fixed between a tip end portion of the connecting member and the side wall member. The upper cloth structure according to any one of claims 1 to 4,
The upper cross structure according to claim 1, wherein unevenness extending in a direction along the arc is formed on an arc-shaped side surface of the reinforcing member.

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