JP2013086640A - Vehicle frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle frame structure configured to prevent a reduction in adhesion of an electrodeposition liquid (reduction in rust prevention performance) in attaching a reinforcing body to a metallic vehicle frame in order to obtain a light-weight frame with high weight efficiency of strength and rigidity.SOLUTION: By inserting a fixing part 30 integrated with or separate from a reinforcing body 15 to a hole part formed on frame bodies 11 and 14, the reinforcing body 15 is fixed to the frame body. A liquid passage 31 extending to the inside and outside of the frame body is formed in the fixing part 30. Liquid passing port parts 32-35 where a liquid enters/exits the liquid passage 31 are provided so as to connect the inside and the outside of the frame body.

Description

  The present invention relates to a vehicle frame structure in which a reinforcing body that reinforces a frame main body is incorporated in a metal frame main body constituting a part of a vehicle body.

In general, as a member for a vehicle such as a body frame that forms a part of a vehicle body such as a hinge pillar, a side sill, a front side frame, a rear side frame, a front pillar, a roof side rail, a center pillar, a quarter pillar, and a rear pillar, The plate material with a closed cross-sectional shape is widely used, and it is reinforced inside the above-mentioned metal vehicle members formed in the closed cross-sectional shape (inside the pillar closed cross-section, inside the side sill closed cross-section, etc.) 2. Description of the Related Art A structure is known in which a body is attached to reinforce vehicle body strength and vehicle body rigidity while reducing weight.
A vehicle body provided with such a metal vehicle member is subjected to electrodeposition coating as a rust preventive treatment for the purpose of preventing the metal vehicle member from being rusted during the production of the vehicle body. However, when a reinforcing body is mounted inside a vehicle member, the flow of electrodeposition liquid is obstructed by the reinforcing body during electrodeposition coating, and the throwing power of electrodeposition coating is reduced. However, rust was generated from such portions.

  By the way, although the structure which attaches a resin-made reinforcement body to the side sill outer rain as a reinforcement using a clip is disclosed by patent document 1, this patent document 1 relates to the throwing power of electrodeposition coating. There is no disclosure or suggestion regarding technical issues.

  Further, in Patent Document 2, a pipe member is joined to a frame made of a pipe material having a shape corresponding to the peripheral shape of the cabin back panel by welding, and a drain hole for discharging the electrodeposition liquid into the pipe member. However, the structure disclosed in Patent Document 2 is not a structure in which a reinforcing body is built in the frame structure.

  Further, in Patent Document 3, a plurality of holes (drain holes) extending in the longitudinal direction of the frame are provided in the filler filled in the frame cross section, and electrodeposition is performed on the inner panel and outer panel and the reinforcement constituting the frame cross section. In the electrodeposition process for applying paint, an electrodeposition solution is disclosed in which the electrodeposition liquid is discharged from the cross section of the frame and / or from the portion filled with the filler through the drain hole.

  However, in the conventional structure disclosed in Patent Document 3, the electrodeposition liquid is spread inside the frame, and there is no disclosure about discharging the electrodeposition liquid to the outside of the frame.

JP 2009-173109 A Japanese Utility Model Publication No. 5-22272 JP 11-278301 A

  Therefore, the present invention inserts a fixing portion provided in the reinforcing body into the hole of the frame main body, fixes the reinforcing body to the frame main body, and provides a liquid flow path extending in the inner and outer directions of the frame main body to the fixing portion. In order to obtain a lightweight frame with high strength and rigidity and weight efficiency, a liquid passage port portion, which is a liquid inlet / outlet to the liquid passage, is formed so as to communicate the inside and outside of the frame body. It is an object of the present invention to provide a vehicle frame structure capable of preventing the electrodeposition liquid from being reduced in its contactability (decreasing rust prevention performance) when it is attached to a metal vehicle frame.

  A vehicle frame structure according to the present invention is a vehicle frame structure in which a reinforcing body that reinforces the frame body is built in a metal frame body that constitutes a part of the vehicle body, and is integrally formed with the reinforcing body. Alternatively, by inserting a fixing portion attached separately from the hole formed in the frame body, the reinforcing body is fixed to the frame body, and the fixing portion extends inward and outward of the frame body. A liquid passage is formed, and a liquid inlet that is a liquid inlet / outlet to the liquid passage is provided so as to communicate the inside and the outside of the frame body.

The above-mentioned frame body can be set to a metal frame body that constitutes a part of a vehicle body such as a hinge pillar, side sill, front side frame, rear side frame, front pillar, roof side rail, center pillar, rear pillar, quarter pillar, etc. it can.
The reinforcing body described above may be made of either metal or resin, but is preferably made of resin from the viewpoint of weight reduction.
Furthermore, a resin clip (resin fastener), a bolt, or the like can be used as the fixing portion separate from the reinforcing body, but a resin-made one is preferable in consideration of formation of a fluid passage (workability).

According to the above configuration, since the reinforcing body for reinforcing the frame main body is built in the frame main body, a lightweight frame with high strength and rigidity weight efficiency can be obtained.
In addition, a liquid passage that extends inward and outward of the frame main body is formed in the fixing portion, and a liquid passage port portion of the liquid passage communicates the inside and outside of the frame main body, so that the reinforcing body is connected to the metal frame main body. At the time of mounting, it is possible to prevent the throwing power of the electrodeposition liquid from deteriorating, to ensure rust prevention performance, and to facilitate the supply and discharge of the electrodeposition liquid.
Furthermore, since the above-described liquid flow path is formed by effectively using a fixing portion that fixes the reinforcing body to the frame body, it is not necessary to separately provide another member for forming the liquid flow path.

In one embodiment of the present invention, at least a part of the reinforcing body is fixed to the inner wall of the frame main body at a predetermined interval, and the liquid passing port portion is at least outside the frame main body, It is provided in the hollow part formed between the reinforcing body and the inner wall of the frame body.
According to the above configuration, since the liquid passage port portion is provided on the outer side of the frame main body and the hollow portion, the electrodeposition liquid is applied to the hollow portion (gap) between the reinforcing body and the inner wall of the frame main body. Supply and discharge can be performed easily.

In one embodiment of the present invention, a foam filler that is cured after being foamed by being heated is installed on at least a part of the outer wall of the reinforcing body facing the hollow portion, and the foam filler is foamed at the time of foaming. The liquid passage port is provided at a position where it is not blocked.
According to the above configuration, it is possible to prevent the foam filler from blocking the liquid passage port and the liquid passage, further ensuring the supply and discharge of the electrodeposition liquid, and water that has entered the frame structure due to dew condensation or the like. Can also be discharged.

In one embodiment of the present invention, the reinforcing body extends in a substantially cross-sectional direction of the frame body so as to connect the wall surface portion formed at least partially along the circumferential direction of the frame body and the wall surface portion. The fixed portion is provided on the wall surface portion, and the liquid passing port portion is formed on the wall surface portion or the wall surface portion side so as not to wrap with the first surface portion. It is.
According to the above configuration, when the fixing portion is attached separately from the reinforcing body, the liquid passage port portion of the fixing portion is formed on the wall surface side and at a position that does not wrap with the first surface portion. It is possible to supply and discharge the electrodeposition liquid to the inside of the reinforcing body. On the other hand, when the fixing portion is formed integrally with the reinforcing body, the liquid passage port portion of the fixing portion is the wall surface portion. And since it forms in the position which does not wrap with a 1st surface part, supply / discharge of an electrodeposition liquid can be enabled also to the inner side of a reinforcement.

In one embodiment of the present invention, the reinforcing body has a rib portion standing substantially in the axial direction of the frame body on the first surface portion, and the liquid passage port portion does not wrap around the rib portion. It is formed.
According to the above configuration, it is possible to improve the strength and rigidity of the reinforcing body itself or the vehicle body strength and the vehicle body rigidity by the rib portion while ensuring the performance of supplying and discharging the electrodeposition liquid to the inside of the reinforcing body. .

In one embodiment of the present invention, the liquid passage is constituted by a hole or a groove formed in the fixed portion, or a combination thereof.
According to the said structure, a liquid flow path can be easily formed by the said hole part, a groove part, or the combination of both.

  According to the present invention, the fixing portion provided in the reinforcing body is inserted into the hole of the frame main body to fix the reinforcing body to the frame main body, and a liquid passage extending in the inner and outer directions of the frame main body is formed in the fixing portion. In addition, since the liquid inlet port which is the liquid inlet / outlet to the liquid passage is provided so as to communicate the inside and outside of the frame main body, the reinforcing body is obtained in order to obtain a lightweight frame with high strength and rigidity and weight efficiency. Is attached to a metal vehicle frame, there is an effect that it is possible to prevent the throwing power of the electrodeposition liquid from being lowered (decrease in rust prevention performance).

Vehicle side view Sectional drawing of the vehicle frame structure which follows the AA line of FIG. Sectional view showing the state before foaming of the foam filler 2 is an enlarged view of the main part of FIG. Perspective view of reinforcement (A) is a side view of a fixed portion, (b) is a left side view of FIG. 6 (a), and (c) is a right side view of FIG. 6 (a). BB cross-sectional view of FIG. 6 (a) (A) is a half cut sectional view showing another embodiment of the fixing portion, (b) is a left side view of FIG. 8 (a), and (c) is a right side view of FIG. 8 (a). Sectional drawing before foaming of the foaming filler which shows the other Example of the frame structure for vehicles Cross section after foaming Sectional drawing before foaming of the foaming filler which shows other Example of the frame structure for vehicles 11 is an enlarged view of the main part Cross section after foaming

  The purpose of preventing the electrodepositing liquid from dropping (decreasing rust prevention performance) when attaching a reinforcing body to a metal vehicle frame in order to obtain a lightweight frame with high strength and rigidity and weight efficiency In a vehicle frame structure in which a reinforcing body that reinforces the frame body is built in a metal frame body that constitutes a part of the vehicle body, the fixing portion is formed integrally with the reinforcing body or attached separately. Is inserted into a hole formed in the frame main body to fix the reinforcing body to the frame main body, and a liquid passage that extends inward and outward of the frame main body is formed in the fixing portion. This is realized by a configuration in which a liquid inlet port that is a liquid inlet / outlet to the liquid passage is provided so as to communicate the inside and outside of the frame body.

An embodiment of the present invention will be described in detail with reference to the drawings.
Before describing the vehicle frame structure, first, the vehicle body structure will be schematically described with reference to FIG.
A side sill 1 extending in the front-rear direction is provided at the lower part of the vehicle, and a rear side frame 2 extending in the front-rear direction of the vehicle toward the rear side is provided at the rear of the side sill 1, while The hinge pillar 3 extending in the direction is coupled and fixed.
A front pillar 4 extending obliquely from the upper end of the above-described hinge pillar 3 is provided obliquely and rearward, and a roof side rail 5 extending in the front-rear direction of the vehicle is coupled and fixed to the rear end of the front pillar 4. ing.
In addition, a rear pillar 6 that extends obliquely downward and rearward from the rear end portion of the roof side rail 5 described above is provided, while the front-rear direction middle of the roof side rail 5 and the front-rear direction middle of the side sill 1 are connected to the vehicle. It is coupled and fixed by a center pillar 7 extending in the vertical direction.
A door opening 8 for the front seat occupant surrounded by the hinge pillar 3, the front pillar 4, the roof side rail 5, the center pillar 7, and the side sill 1 is formed, and the center pillar 7, the roof side rail 5, and the rear pillar 6. The rear side panel 9 and the side sill 1 form a door opening 10 for a rear seat occupant.

  For convenience of illustration in FIG. 1, hatched areas e1, e2, e3, e4, and e5 indicate application parts of the vehicle frame structure of the present embodiment to the vehicle body, and area e1 is a door for a rear seat passenger An intermediate part in the front-rear direction of the side sill 1 at the lower part of the opening 10, an area e2 is an area in the front-rear direction of the side sill 1 at the lower part of the door opening 8 for the front seat occupant, and e3 is a lower part of the hinge pillar 3 and the side sill 1 continuous thereto. The front part, area e4 is the lower part of the center pillar 7 and the intermediate part in the front-rear direction of the side sill 1, and the area e5 is the part where the rear side frame 2 is disposed.

When the vehicle frame structure is applied to the areas e1, e2, e4, the side impact strength can be improved, and when the vehicle frame structure is applied to the area e3, the front impact strength and the side impact strength can be improved. it can.
In the following embodiment, a case will be described in which a vehicle frame structure is adopted in the side sill 1 below the door opening 10 for the rear seat occupant indicated by the line AA in FIG.

2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a cross-sectional view showing a state before foaming of the foam filler, FIG. 4 is an enlarged view of the main part of FIG. 2, and FIG. FIG. 6, FIG. 7 is explanatory drawing of the clip as a fixing | fixed part. In the drawing, the arrow IN indicates the inner side in the vehicle width direction, and the arrow OUT indicates the outer side in the vehicle width direction.
In FIG. 2, a side sill 1 includes a side sill inner 11 located on the inner side in the vehicle width direction, a side sill outer 12 located on the outer side in the vehicle width direction, and a side sill outer rain 14 located in the side sill closed section 13 (hereinafter simply referred to as reinforcement). The upper and lower joining flange portions 1a, 1b are joined and fixed to form a side sill closed section 13 extending in the front-rear direction of the vehicle.
Here, the side sill inner 11, the side sill outer 12, and the reinforcement 14 are formed of a metal such as a steel plate.

  As shown in FIG. 2, between the reinforcement 14 as the frame body and the side sill inner 11, there is a side sill 1, specifically, a reinforcement 14 that reinforces the reinforcement 14 and the side sill inner 11 as the frame body. Built in.

The reinforcing body 15 is configured as shown in FIG.
That is, the reinforcing body 15 includes a substantially pentagonal outer wall surface 16 including an outer upper piece 16a, an inner upper piece 16b, an outer vertical piece 16c, an inner vertical piece 16d, and a bottom piece 16e. The outer wall surface portion 16 is formed along the circumferential direction of the side sill inner 11 and the reinforcement 14. Support pieces 16f and 16g are integrally formed on the bottom piece 16e of the outer wall surface portion 16 so as to stabilize the posture of the reinforcing body 15 when temporarily tightened.
Further, the reinforcing body 15 has a nodal first surface portion 17 extending in a substantially cross-sectional direction of the frame body so as to connect the outer wall surface portion 16, that is, a closed cross-sectional direction in which the side sill inner 11 and the reinforcement 14 are combined. The opposing corner portions of the substantially pentagonal outer wall surface portion 16 are connected to each other, and are erected on the first surface portion 17 in a substantially axial direction (front-rear direction of the vehicle) of the frame body (side sill inner 11 and reinforcement 14). The two rib portions 18 and 19 are combined in an X shape.
Further, a lateral gate-shaped clip seat 20 is integrally formed at the upper part of the above-mentioned vehicle exterior vertical piece 16c, and a clip locking portion 20a is formed at the center portion of the clip seat 20 as the middle in the vertical direction. In addition, a hole 21 is formed through the vehicle outer vertical piece 16c corresponding to the clip locking portion 20a so as not to overlap the first surface portion 17 and the rib portions 18 and 19.
The outer wall surface portion 16, the first surface portion 17, the rib portions 18, 19 and the clip seat 20 are integrally formed of a synthetic resin such as polyamide (nylon 6).

  As shown in FIGS. 2 and 3, the reinforcing body 15 shown in FIG. 5 has a resin clip 30 as a fixing part attached separately from the reinforcing body 15, and a hole 14 a formed in the reinforcement 14. It is fixed to the reinforcement 14 by being inserted (see FIG. 4).

The above-described resin clip 30 is configured as shown in FIGS.
That is, the resin clip 30 includes an engaged portion 30a disposed in the hole 14a of the reinforcement 14, and engaging portions having different diameters located on both the inner and outer sides in the vehicle width direction of the engaged portion 30a. 30b, 30c, a neck portion 30d that is locked to the clip locking portion 20a of the clip seat 20, and a head portion 30e that is located on the inner side in the vehicle width direction of the neck portion 30d. It is formed into a shape.
The substantially axial resin clip 30 is formed with a fluid passage 31 extending in the inner and outer directions of the reinforcement 14 through the shaft core portion, and at a liquid inlet / outlet to the fluid passage 31. Ports 32, 33, 34, and 35 serving as liquid passing ports are provided so as to communicate the inside and outside of the above-described reinforcement 14.

  The port 32 is formed at the outer end of the liquid passage 31, the port 33 is formed at the inner end of the liquid passage 31, and the port 34 is passed through the lateral hole 36 (see FIG. 7). The passage 31 is formed so as to communicate with the outside of the locking portion 30b, and the port 35 communicates with the liquid passage 31 and the outside of the head 30e via a lateral hole 37 (see FIG. 7). Is formed.

The resin clip 30 shown in FIGS. 6 and 7 has its neck portion 30d engaged with the clip engaging portion 20a of the clip seat 20 of the reinforcing body 15 shown in FIG. However, after the resin clip 30 is attached, the ports 32, 33, 34, and 35, especially the port 33, which are formed in the resin clip 30, are the first surface portion 17 of the reinforcing body 15 and the port 33. Each position of the port is set so as not to overlap the rib portions 18 and 19.
That is, the ports 32 to 35 as the liquid passage ports are formed at positions where they do not overlap with the first surface portion 17 and the rib portions 18 and 19 described above, and the ports 32 to 35 are the elements 17, 18, 19. It is formed so as not to be blocked by.
In particular, after the resin clip 30 is attached to the clip seat 20, as shown in FIG. 4, the port 33 of the resin clip 30 coincides with the hole 21 of the reinforcing body 15, and these both 33 and 21 communicate with each other. Is.

  By the way, the above-described reinforcing body 15 is formed by injection molding of a synthetic resin. At the same time, a foam filler 38 is injection-molded on the outer surface of the outer wall surface 16 of the reinforcing body 15 as shown in FIG. The reinforcement 15 having the foam filler 38 on the outer surface is incorporated in the reinforcement 14 as the frame body and the side sill inner 11 using the resin clip 30 described above. As the above-described foam filler 38, urethane foam or the like can be used.

As shown in FIG. 3, at least a part of the reinforcing body 15 (substantially the whole in this embodiment) is fixed to the reinforcement 14 and the inner wall of the side sill inner 11 at a predetermined interval. Of the ports 32 to 35, the port 32 is located outside the reinforcement 14, and the port 35 is located between the clip seat 20 and the outer wall surface 16 of the reinforcing body 15.
Here, the above-mentioned foam filler 38 is installed on the outer wall surface portion 16 of the reinforcing body 15 facing the hollow portion 39, and is foamed as shown in FIG. 2 from the state of FIG. It hardens | cures later and fixes the reinforcement body 15 in a frame main body (reinforcement 14, the side sill inner 11).
The above-mentioned foam filler 38 is provided at a position where the ports 33, 34, 35 are not blocked when foaming.

When the above-mentioned vehicle frame is subjected to electrodeposition coating by dipping (specifically, cationic electrodeposition coating), a hot air drying furnace is provided in the next stage of the paint tank in which the vehicle frame is immersed. Inside, the above-mentioned foaming filler 38 is heated and foamed.
Further, when the vehicle frame is immersed in the paint tank of the dipping coating line, the electrodeposition liquid flows into the side sill closed section 13, and this electrodeposition liquid passes through the port 32, the liquid passage 31, and the ports 34 and 35. Then, it flows out into the hollow portion 39 and flows into the space between the foam filler 38 before foaming and the inner wall of the frame body, and also flows into the inside of the reinforcing body 15 through the port 33 and the hole 21.
Further, when the vehicle frame is pulled upward from the paint tank of the dipping coating line in the direction of the next hot air drying furnace, the electrodeposition liquid flowing into the frame main body and the side sill closed section 13 It is discharged from 32 to 35. The reinforcing filler 15 is fixed and held in the frame main body by heating and foaming the above-mentioned foam filler 38 in a hot air drying furnace disposed in the next stage of the above-mentioned coating tank, and curing after foaming.

  As described above, the vehicle frame structure according to the first embodiment shown in FIGS. 1 to 7 includes a metal frame main body (see the side sill inner 11 and the reinforcement 14) constituting a part of the vehicle body, and the frame main body. A frame structure for a vehicle in which a reinforcing body 15 for reinforcing the body is built, and a fixing portion (see the resin clip 30) attached separately from the reinforcing body 15 is formed in the frame body (see the reinforcement 14). The reinforcing body 15 is fixed to the frame main body by being inserted into the hole 14a, and a liquid passage 31 extending inward and outward of the frame main body is formed in the fixing portion (resin clip 30). A liquid inlet (see ports 32 to 35) that is a liquid inlet / outlet to the liquid passage 31 is provided so as to communicate the inside and outside of the frame main body (see FIG. 3, see FIG. 4).

According to this configuration, the frame body (side sill inner 11, reinforcement 14) includes the reinforcing body 15 that reinforces the frame body, so that a lightweight frame with high strength and rigidity and weight efficiency can be obtained. .
In addition, a liquid passage 31 extending inward and outward of the frame body is formed in the fixing portion (resin clip 30), and liquid passage ports (ports 32 to 35) of the liquid passage 31 pass inside and outside the frame body. Because of the communication, when attaching the reinforcing body 15 to the metal frame main body, it is possible to prevent the electrodeposition liquid from falling and prevent the rust prevention performance, and to supply the electrodeposition liquid. Discharging can be facilitated.
Further, since the above-described liquid flow path 31 is formed by effectively using the fixing portion (resin clip 30) itself for fixing the reinforcing body 15 to the frame body, a separate member for forming the liquid flow path is separately provided. There is no need to provide it.
Further, at least a part of the reinforcing body 15 (substantially the whole in this embodiment) is fixed to the inner wall of the frame main body (side sill inner 11, reinforcement 14) at a predetermined interval, Portions (ports 32 to 35) are provided at least on the outer side of the frame main body and a hollow portion 39 formed between the reinforcing body 15 and the inner wall of the frame main body (the rain shown in FIG. 4). A port 32 provided on the outside of the reinforcement 14, and a port 34 located in a hollow portion 39 formed between the reinforcement 15 and the inner wall of the reinforcement 14).

According to this configuration, since the liquid passage ports (ports 32 and 34) are provided on the outer side of the frame main body and the hollow portion 39, the hollow portion 39 (between the reinforcing body 15 and the inner wall of the frame main body ( It is possible to easily supply and discharge the electrodeposition liquid with respect to the gap).
Further, at least a part (substantially whole in this embodiment) of the outer wall (outer wall surface part 16) of the reinforcing body 15 facing the hollow part 39 is provided with a foam filler 38 which is cured after being foamed by heating. The foam filling material 38 is provided at a position that does not block the liquid passage port (ports 32 to 35) during foaming (see FIGS. 2 and 3). Providing the foam filler 38 at a position that does not block the ports 32 to 35, particularly the ports 34 and 35, as the liquid passage ports means that the foam filler 38 is provided avoiding the position where the resin clip 30 is disposed. To do.

According to this configuration, the foaming filler 38 can be prevented from blocking the liquid passage opening (ports 32 to 35) and the liquid passage 31, and the supply and discharge of the electrodeposition liquid can be further ensured. Water that has intruded due to condensation or the like can also be discharged through the ports 32 to 35 and the liquid flow path 31.
In addition, the reinforcing body 15 has a wall surface portion (see the outer wall surface portion 16) formed at least partially along the circumferential direction of the frame body (see the side sill inner 11 and the reinforcement 14), and the wall surface portion (see FIG. A first surface portion 17 extending in a substantially cross-sectional direction of the frame body so as to connect the outer wall surface portion 16), the fixing portion (resin clip 30) is provided on the wall surface portion (outer wall surface portion 16), and The liquid passage port portions (ports 32 to 35) are formed on the wall surface side (outer wall surface portion 16 side) and at a position where they do not overlap with the first surface portion 17 (see FIG. 2).

According to this configuration, in the case of the first embodiment in which the fixing portion (resin clip 30) is attached separately from the reinforcing body 15, the liquid passage port portions (ports 32 to 35 of the fixing portion (resin clip 30)). Among them, in particular, the port 33) is formed on the wall surface side (outer wall surface 16 side) and at a position where it does not wrap with the first surface portion 17, so that the electrodeposition liquid can be supplied and discharged also to the inside of the reinforcing body 15. Can be possible.
The reinforcing body 15 has a plurality of rib portions erected on the first surface portion 17 in a substantially axial direction (in this embodiment, the longitudinal direction of the vehicle) of the frame body (see the side sill inner 11 and the reinforcement 14). 18 and 19, and the liquid passage port portion (refer to port 33 among ports 32 to 35) is formed at a position where it does not overlap with rib portions 18 and 19 (see FIGS. 2 and 5). ).

According to this configuration, the strength and rigidity of the reinforcing body 15 itself or the strength and rigidity of the reinforcing body 15 or the vehicle body strength and the vehicle body rigidity are secured by the plurality of rib portions 18 and 19 while ensuring the performance of supplying and discharging the electrodeposition liquid to the inside of the reinforcing body 15. Can be improved.
Furthermore, the liquid passage 31 is constituted by a hole formed in the fixing part (resin clip 30) (see FIG. 7).

According to this configuration, the liquid passage 31 can be easily formed by the above-described hole portion by drilling or the like.
Further, as disclosed in the above embodiment, when the resin clip 30 as the fixing portion is configured to be inserted and attached to the gate-shaped clip seat 20 from the lateral direction, the foam filler 38 is formed at both legs of the clip seat 20. It is possible to prevent the port 35 from being blocked by the foam filler 38 during foaming.

FIG. 8 shows another embodiment of the resin clip as a fixing portion, FIG. 8 (a) is a half-sectional view of the resin clip, FIG. 8 (b) is a left side view of FIG. 8 (a), and FIG. ) Is a right side view of FIG.
In this embodiment shown in FIG. 8, the liquid passage is constituted by a concave groove portion 40 that continuously extends substantially over the entire length in the axial direction of the resin clip 30 and is open at both ends.
Thus, even if the liquid passage is formed by the concave groove portion 40, the ports 32, 33, 34, and 35 serving as liquid inlets and outlets for the liquid (electrodeposition liquid) to the concave groove portion 40 are provided in the frame body In particular, the reinforcement 14 can be provided so as to communicate with the inside and outside of the reinforcement 14, and the port 32 is located outside the reinforcement 14, and is formed in the hollow portion 39 between the reinforcement 15 and the reinforcement 14 inner wall. Since the port 34 is located, even if the reinforcing body 15 is incorporated in the frame body, the wrapping performance of the electrodeposition liquid can be prevented from being lowered, and rust prevention performance can be secured. Can be easily supplied and discharged.

As described above, in the embodiment shown in FIG. 8, the liquid passage is composed of the concave groove portion 40 formed in the fixing portion (see the resin clip 30) (particularly, in FIG. b) (see c)).
According to this configuration, the liquid passage can be easily formed by cutting or the like by the recessed groove portion 40.
In the second embodiment shown in FIG. 8 as well, the other configurations, operations, and effects are almost the same as those of the first embodiment. Therefore, in FIG. Although not described in detail, the above-described liquid flow path may be configured by combining a hole (see FIGS. 6 and 7) and a concave groove 40 (see FIG. 8).

  FIGS. 9 and 10 show still another embodiment of the vehicle frame structure. In this embodiment 3, a structure applied to the side sill 1 having no reinforcement 14 is shown. 9 is a cross-sectional view showing a state before foaming of the foam filler 38, and FIG. 10 is a cross-sectional view showing a state after foaming of the foam filler 38.

In the third embodiment shown in FIGS. 9 and 10, the side sill 1 has the side sill inner 11 and the side sill outer 12A joined and fixed by the upper and lower joining flange portions 1a and 1b. It constitutes the main body.
In this case, the resin clip 30 for fixing the reinforcing body 15 to the side sill outer 12A as the frame body is inserted and fixed so as to be directed in the vertical direction to the lower side portion 12a of the side sill outer 12A so as to be invisible from the outside of the vehicle. Has been.

  The vehicle frame structure of the third embodiment shown in FIGS. 9 and 10 is also reinforced to reinforce the frame body on a metal frame body (see side sill inner 11 and side sill outer 12A) that constitutes a part of the vehicle body. A vehicle frame structure in which a body 15 is incorporated, and a fixing portion (see resin clip 30) attached separately from the reinforcing body 15 is inserted into a hole formed in the frame body (side sill outer 12A). As a result, the reinforcing body 15 is fixed to the frame body (side sill outer 12A), and a liquid passage 31 extending inward and outward of the frame body (side sill outer 12A) is formed in the fixing portion (resin clip 30). The liquid inlet port (see ports 32 to 35), which is the inlet / outlet of the liquid to the liquid passage 31, is connected to the frame main body (side sill out). Out those provided so as to communicate the 12A) (see FIG. 9, FIG. 10).

According to this configuration, the frame body (side sill inner 11, side sill outer 12A) incorporates the reinforcing body 15 that reinforces the frame body, so that a lightweight frame with high strength and rigidity and weight efficiency can be obtained.
In addition, a liquid passage path 31 extending in the inner and outer directions of the frame body (side sill outer 12A) is formed in the fixing portion (refer to the resin clip 30), and liquid passage ports (ports 32 to 35) of the liquid passage path 31 are formed. Since the inside and outside of the frame main body (side sill outer 12A) communicate with each other, when attaching the reinforcing body 15 to the metal frame main body, it is possible to prevent the electrodeposition liquid from falling and prevent rust prevention performance. In addition, the supply and discharge of the electrodeposition liquid can be facilitated.
Furthermore, since the above-described liquid flow path 31 is formed by effectively using a fixing portion (resin clip 30) for fixing the reinforcing body 15 to the frame body (side sill inner 11, side sill outer 12A), the liquid flow path. There is no need to separately provide a separate member for forming.
In addition, as disclosed in the above embodiment, the resin clip 30 is attached to the lower side portion of the side sill outer 12A by inserting the side sill outer 12A in the vertical direction. Is not visible, and the appearance is not impaired.

  Also in the third embodiment shown in FIGS. 9 and 10, the other configurations, operations, and effects are almost the same as those in the first embodiment. Therefore, in FIGS. Are denoted by the same reference numerals, and detailed description thereof is omitted.

11, 12, and 13 show still another embodiment of the vehicle frame structure, in which a resin clip as a fixing portion is integrally formed with the reinforcing body 15, and FIG. 11 shows the foam filler 38 before foaming. FIG. 12 is a main part enlarged view of FIG. 11, and FIG. 13 is a cross-sectional view showing a state after foaming of the foam filler 38.
As shown in FIG. 11, two resin clips 50 and 50 having the same structure are integrally formed as a plurality of fixing portions on the vehicle outer side vertical piece 16 c in the outer wall surface portion 16 of the supply body 15.

As shown in the enlarged view of the resin clip 50 in FIG. 12, the resin clip 50 includes a locked portion 50a disposed in the hole 14a of the reinforcement 14, and a vehicle width of the locked portion 50a. Engaging portions 50b and 50c having different diameters located on both the inner and outer sides in the direction, a shaft portion 50d extending from the outer wall surface 16 of the reinforcing body 15 to the vehicle outer direction, and a plurality of integrally formed at the outer end portion of the shaft portion 50d Locking pieces 50e, 50e are provided.
The resin clip 50 is formed with a liquid passage 51 extending in the inner and outer directions of the reinforcement 14 so as to penetrate the inner surface of the outer wall surface 16 along the shaft core portion of the shaft portion 50d. Ports 52, 53, 54, and 55 serving as liquid inlets and outlets for liquid to the passage 51 are provided so as to communicate the inside and outside of the reinforcement 14 and the inside and outside of the outer wall surface 16.

The port 52 is formed at the outer end of the liquid passage 51, and the port 53 is formed at the inner end of the liquid passage 51, that is, the inner surface of the outer wall surface 16 of the reinforcing body 15. The liquid passage 51 is formed so as to communicate with the outside of the reinforcement 14, and the port 55 is formed so as to communicate the liquid passage 51 with the hollow portion 39 described above.
Moreover, the port 53 of the above-described ports 52 to 55 is not wrapped with the outer wall surface portion 16 of the reinforcing body 15 and the first surface portion 17 and the rib portions 18 and 19 as shown in FIGS. Formed in position.
Further, as shown in FIG. 11, the foam filler 38 is spaced from the resin clip 50 so as not to block the port 55 of each resin clip 50, 50 after the foaming (see FIG. 13). The reinforcing body 15 is provided on the outer wall surface 16, specifically on the surface facing the hollow portion 39.

  As described above, in the vehicle frame structure of the fourth embodiment shown in FIGS. 11 to 13, the frame main body is attached to the metal frame main body (side sill inner 11 and reinforcement 14) constituting a part of the vehicle body. A vehicle frame structure in which a reinforcing body 15 to be reinforced is incorporated, and a fixing portion (see resin clip 50) formed integrally with the reinforcing body 15 is formed in a hole formed in the frame body (reinforcement 14). The reinforcing body 15 is fixed to the frame body by being inserted into the portion 14a, and a liquid passage 51 extending inward and outward of the frame body (reinforcement 14) is formed in the fixing portion (resin clip 50). The liquid passage opening (see ports 52 to 55), which is the inlet / outlet of the liquid to the liquid passage 51, is connected to the frame body (reinforcement 14). Those provided inside and outside of such communicating (see FIG. 11, FIG. 12).

According to this configuration, the frame body (side sill inner 11, reinforcement 14) includes the reinforcing body 15 that reinforces the frame body, so that a lightweight frame with high strength and rigidity and weight efficiency can be obtained. .
In addition, a liquid passage 51 extending inward and outward of the frame main body is formed in the fixing portion (resin clip 50), and a liquid passage opening (see ports 52 to 55) of the liquid passage 51 is provided inside and outside the frame main body. Therefore, when attaching the reinforcing body 15 to the metal frame main body, it is possible to prevent the electrodeposition liquid from falling and prevent rust prevention performance. Supply and discharge can be facilitated.
Furthermore, the above-described liquid flow path 51 is formed by effectively using a fixing portion (resin clip 50) for fixing the reinforcing body 15 to the frame body (reinforcement 14). There is no need to provide a separate member separately.
Further, the reinforcing body 15 has a wall surface portion (see the outer wall surface portion 16) at least a part (substantially the whole in this embodiment) formed along the circumferential direction of the frame main body (side sill inner 11, reinforcement 14). ) And a first surface portion 17 extending in a substantially cross-sectional direction of the frame body so as to connect the wall surface portion (outer wall surface portion 16), and the fixing portion (resin clip 50) is the wall surface portion (outer wall surface portion). 16), and the liquid passage part (refer to port 53 among ports 52 to 55, in particular, port 53) is the wall surface part (outer wall surface part 16) and is formed at a position that does not wrap with the first surface part 17. (See FIG. 11).

  According to this configuration, the fixing portion (resin clip 50) is integrally formed with the reinforcing body 15, and the liquid passage port portion (port 53) of the fixing portion (resin clip 50) is the wall surface portion (outer wall surface portion 16). In addition, since it is formed at a position where it does not wrap with the first surface portion 17, it is possible to supply and discharge the electrodeposition liquid to the inside of the reinforcing body 15.

  In the fourth embodiment shown in FIGS. 11 to 13, the other configurations, operations, and effects are almost the same as those in the first embodiment. Therefore, in FIGS. Are attached with the same reference numerals, and detailed description thereof is omitted, but the number of resin clips 50 as a fixing portion integrally formed with the reinforcing body 15 may be one or three or more.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The frame body of the present invention corresponds to the side sill inner 11 and the reinforcement 14 of the embodiment, or the side sill inner 11 and the side sill outer 12A.
Similarly,
The fixing part corresponds to the resin clips 30, 50,
The liquid flow path corresponds to the liquid flow path 31, 51 or the groove 40,
The liquid passage part corresponds to each port 32-35 or each port 52-55,
The outer wall and wall surface of the reinforcing body correspond to the outer wall surface 16,
The present invention is not limited to the configuration of the above-described embodiment.

For example, in the above-described embodiment, the structure in which the vehicle frame structure is applied to the side sill is illustrated, but the vehicle frame structure of the present embodiment has a hinge pillar, a center pillar, a rear pillar, a quarter pillar, and a front side frame in addition to the side sill. , Rear side frame, front pillar, roof side rail, floor frame, tunnel member, cross member, apron member, rear end member, suspension tower reinforcement member, etc. It is good to form so that it may correspond to the closed cross section of an application site | part.
Moreover, although the above-mentioned reinforcement body may be made of either metal or resin, a resin-made one is preferable from the viewpoint of weight reduction.
Furthermore, as a fixing part separate from the reinforcing body, a fixing part such as a bolt can be used in addition to the resin clip (resin fastener), but considering the formability (workability) of the liquid passage, Those are preferred.
Furthermore, the port in the frame body is set to have a shape, opening area, and positional relationship that do not allow foaming fillers to enter, and when draining water such as condensed water that has entered the frame body, the discharge performance is secured. Therefore, it is desirable that the liquid filling path is not blocked by the foam filler.

  As described above, the present invention is useful for a vehicle frame structure in which a reinforcing body that reinforces the frame main body is incorporated in a metal frame main body constituting a part of the vehicle body.

11 ... Side sill inner (frame body)
12A ... Side sill outer (frame body)
14 ... Reinforcement (frame body)
14a ... hole
15 ... Reinforcing body
16 ... Outer wall surface (outer wall, wall surface)
17 ... 1st surface part
18, 19 ... rib part
30, 50 ... Resin clip (fixing part)
31, 51 ... liquid passage
32 to 35, 52 to 55 ... Port (fluid port)
38 ... Foam filler
39: Hollow part
40 ... concave groove (fluid passage, groove)

Claims (6)

A vehicle frame structure in which a reinforcement body that reinforces the frame body is built in a metal frame body that constitutes a part of the vehicle body,
The reinforcing body is fixed to the frame body by inserting a fixing portion that is integrally formed with the reinforcing body or attached separately, through a hole formed in the frame body,
A liquid passage that extends inward and outward of the frame body is formed in the fixing portion,
A vehicle frame structure in which a liquid passage opening portion serving as a liquid inlet / outlet to the liquid passage is provided so as to communicate between the inside and the outside of the frame main body. At least a part of the reinforcing body is fixed with a predetermined distance from the inner wall of the frame body,
2. The vehicle frame structure according to claim 1, wherein the liquid passage port portion is provided at least at an outer side of the frame main body and a hollow portion formed between the reinforcing body and the inner wall of the frame main body. At least a part of the outer wall of the reinforcing body facing the hollow portion is provided with a foam filler that cures after being foamed by being heated,
The vehicle frame structure according to claim 2, wherein the foam filler is provided at a position where the liquid passage port portion is not blocked during foaming. The reinforcing body has a wall surface part at least part of which is formed along the circumferential direction of the frame body,
A first surface portion extending in a substantially cross-sectional direction of the frame body so as to connect the wall surface portions,
The fixing part is provided on the wall surface part;
The vehicle frame structure according to any one of claims 1 to 3, wherein the liquid passage port portion is formed on the wall surface portion or the wall surface portion side and at a position not overlapping the first surface portion. The reinforcing body has a rib portion erected in the substantially axial direction of the frame body on the first surface portion,
The vehicle frame structure according to claim 4, wherein the liquid passage port portion is formed at a position where it does not wrap with the rib portion. The frame structure for a vehicle according to any one of claims 1 to 5, wherein the liquid passage is configured by a hole or a groove formed in the fixed portion, or a combination thereof.

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