WO2012070380A1

WO2012070380A1 - Cover member

Info

Publication number: WO2012070380A1
Application number: PCT/JP2011/075702
Authority: WO
Inventors: 謙一荒木
Original assignee: 株式会社ニフコ
Priority date: 2010-11-24
Filing date: 2011-11-08
Publication date: 2012-05-31
Also published as: JP2012111341A; JP5601991B2; CN103221293B; CN103221293A

Abstract

This cover member is premised upon being used in an end structure wherein: a mount member is attached to an open end of a cross member forming a closed cross-section such that said mount member goes from one edge of said open end to the other; said mount member protrudes from said open end; and a pair of gaps are formed on either side of said mount member. This cover member has an attachment post and a wall section that are formed as a single unit, and as said attachment post is fitted into the aforementioned mount member, the wall section covers the aforementioned pair of gaps. Said gaps can thus easily be covered at any time.

Description

Cover member

The present invention relates to a cover member used in an end structure that is attached so that a columnar member crosses an opening end face of a member having a closed cross section, and a pair of gaps are formed on both sides with respect to the columnar member. .

There are many members whose end faces are open to form a closed cross-sectional structure. The end face opening of such a member is generally closed to prevent intrusion of mud, stones and the like. For example, in a vehicle body structure, a cross member forming a closed cross-sectional structure is generally used, and an end surface opening of such a cross member has a side wall panel (mat guard) as shown in, for example, Patent Document 1. ) And the end of the cross member.

By the way, in the end structure of a member, there is one in which a columnar member is attached so as to cross an opening end surface of a member having a closed cross section, and a pair of gaps are formed on both sides based on the columnar member. Even in such an end structure, it is preferable to close the pair of gaps because mud, stone, or the like may enter the member through the pair of gaps.

Japanese Utility Model Publication No. 7-35260

However, in the end structure, the columnar member is attached so as to cross the opening end surface of the member, so that the outer peripheral portion of the columnar member protrudes outward from the opening end surface, and a pair of gaps in the end structure is formed. It is not easy to close with one flat panel member.

On the other hand, in order to close the pair of gaps, it is conceivable to weld only flat metal plates only to the opening end surface portions on both sides with the columnar member as a reference. However, in this case, in addition to unfavorable workability, a new problem occurs in a coating process (dipping process) that is generally performed thereafter.
That is, the member generally needs to undergo a painting process. When painting (dipping), the paint enters the member from various processed holes and the like, and after finishing the coating, the various processed holes and the like. Therefore, surplus paint is discharged from the inside of the member. However, when the pair of gaps in the member are respectively closed by the metal plate, the paint once entered in the member cannot be easily discharged only by various processed holes, etc. Even if it is produced or not produced, it will take a considerable amount of time to discharge the paint.

The present invention has been made in view of the above circumstances, and its technical problem is that a columnar member is attached to the opening end surface of the member, and the gaps formed on both sides based on the columnar member can be easily simplified at any time. It is to provide a cover member that can be closed.

In order to achieve the technical problem, the present invention provides:
The columnar member is attached so as to cross the opening end surface of the member having a closed cross section, and the columnar member protrudes from the opening end surface, and gaps are formed on both sides with respect to the columnar member. A cover member used for an end structure,
An insertion opening that can be expanded and contracted between both end portions with a curved strip, and a fitting portion that fits an outer peripheral portion of the columnar member from the insertion opening;
The outer peripheral portion of the fitting portion is provided to extend radially outward of the fitting portion,
When the fitting portion is fitted to the columnar member, a wall portion that respectively closes the gaps;
It is set as the structure equipped with.

In the present invention, on each wall portion, when the fitting portion is fitted to the columnar member, a blocking wall portion facing the gap and closing the gap, and a peripheral wall portion projecting forward from the peripheral portion of the blocking wall portion And the peripheral wall portion is set so as to surround the peripheral wall portion of the opening end portion when the fitting portion is fitted to the columnar member. The gap can be closed by the blocking wall portion while covering, so that mud, stones and the like can be reliably prevented from entering the member through the gap.

In the present invention, on the premise that the outer peripheral shape of the opening end surface of the member is a substantially square shape, the peripheral wall portion extends forward from both side portions in the width direction of the fitting portion among the peripheral portion of the blocking wall portion. A pair of opposed wall portions that are brought out and face each other, and a connecting wall portion that connects the pair of opposing wall portions on the outer end side of the closed wall portion, are each provided, and the pair of opposing wall portions and the connecting wall The spring piece is provided on the wall of which the wall faces in the up-down direction when in use, and the spring piece opens when the pair of opposing wall portions and the connecting wall portion surround the peripheral wall side portion of the opening end portion. If it is set so that it can be bent outward by the end, even if there is a dimensional error in the end structure, the cover member can be moved in the vertical direction by using the biasing force of the spring piece. It can be attached to the end structure in a stable condition without rattling Kill.

In the present invention, on the assumption that either the concave portion or the convex portion fitted into the concave portion is provided in the outer peripheral portion of the columnar member in the member, the concave portion or the convex portion is formed on the inner surface of the fitting portion. If the other is provided, the attachment position of the cover member can be positioned based on the fitting of the concave portion and the convex portion, and the cover member can be properly attached to the end structure (as per the standard). it can.

In the present invention, when the fitting portion is set so that the width thereof becomes narrower toward the center in the circumferential direction, the cover member as a whole is centered on the center portion in the extending direction of the fitting portion. Thus, the degree of freedom of attachment (fitting) to columnar members having various diameters can be increased.

According to the present invention, if the outer peripheral portion of the columnar member is inserted into the fitting portion of the cover member, the fitting portion is fitted and held on the outer peripheral portion, and the wall portion is The pair of gaps on both sides are closed with the columnar member as a reference. For this reason, by using the said cover member, a columnar member is attached to the opening end surface of a member, and the clearance gap formed in both sides on the basis of the columnar member can be easily obstruct | occluded at any time. As a result, even after each gap is used for discharging the excess paint at the end of painting, each gap can be easily closed.

The perspective view which shows the cover member which concerns on embodiment of this invention assembled | attached to the edge part structure of the cross member used in a rear part vehicle body structure. Explanatory drawing explaining attachment of the cover member which concerns on embodiment to a cross member. The figure which shows the attachment state of the cover member which concerns on embodiment with respect to the mount member of the opening end surface in a cross member. FIG. 4 is a sectional view taken along line X4-X4 of FIG. The perspective view which shows the cover member which concerns on embodiment. The front view which shows the cover member which concerns on embodiment. The partial cross section top view which shows the cover member which concerns on embodiment. The right view of FIG. FIG. 8 is a cross-sectional view taken along line X9-X9 in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a rear body structure 1. In the rear vehicle body structure 1, a cross member 2 is used, and the cross member 2 is disposed so as to extend in the vehicle width direction. As shown in FIG. 2, the cross member 2 includes an upper member 3 and a lower member 4. The upper member 3 includes an upper wall portion 3a extending in the vehicle width direction, and side wall portions 3b that respectively hang down from both sides in the width direction of the upper wall portion 3a. Correspondingly, it has a lower wall portion 4a extending in the vehicle width direction and a side wall portion 4b rising from both sides in the width direction of the lower wall portion 4a. The side wall portions 3b of the upper member 3 and the side wall portions 4b of the lower member 4 are joined (welded or the like) to each other, and the cross member 2 forms a closed cross-sectional structure. Both end surfaces have rectangular openings 5 that are wide in the lateral direction (vehicle body longitudinal direction).

As shown in FIG. 2, a columnar mount member 7 as a columnar member is attached to each open end face 6a of the cross member 2 so as to cross in the vertical direction. The mount member 7 is configured by inserting a bush rubber, a shaft and the like in the outer pipe as usual in order to attach the vehicle body and the like to the upper end surface side. On the other hand, a storage recess portion 8 is formed on the opening end surface 6 a of the cross member 2, and the storage recess portion 8 includes an end surface of the upper wall portion 3 a of the upper member 3 and a lower wall portion 4 a of the lower member 4. It is configured by forming a substantially semicircular cutout on the end face. About half of the outer peripheral portion of the mount member 7 is held by press fitting, welding, or the like in the storage recess 8 (each semicircular cutout of the upper member 3 and the lower member 4). The remaining substantially half of the outer peripheral portion of the mount member 7 protrudes from the open end surface of the cross member 2. Therefore, the opening 5 of the opening end surface 6 a of the cross member 2 is divided into two by the mount member 7, and the end structure of the cross member 2 is that a pair of gaps 5 a are formed on the left and right with respect to the mount member 7. (See FIG. 2). A positioning hole 9 is formed as a recess on the outer peripheral surface of the mount member 7 (see FIG. 2). The positioning hole 9 is formed in the mount member 7 so as to be positioned at the center of the opening 5 of the opening end surface 6a of the cross member 2 (the center in the vertical direction and the center in the vehicle longitudinal direction).

As shown in FIGS. 1 to 4, a cover member 10 is attached to the open end 6A of the cross member 2 so as to close the pair of gaps 5a. The cover member 10 is attached after finishing the coating process (immersion process) on the cross member 2. This is because not only the various holes 11 in the cross member 2 but also the pair of gaps 5a are used for discharging excess paint after painting. As shown in FIGS. 2 and 5 to 9, the cover member 10 is integrally formed using a resin material so as to have a fitting portion 12 and a pair of wall portions 13.

The fitting portion 12 continuously extends with a substantially same degree of curvature from the fitting main body portion 14 formed as a strip material curved in a substantially semicircular shape, and from each end surface of the fitting main body portion 14 to the front. A pair of fitting legs 15 are integrally provided, and these cooperate to constitute a ring-shaped member having a notch gap.

As shown in FIGS. 2 to 8, the fitting main body portion 14 is determined in consideration of the curved state and the length between both ends in consideration of the outer diameter of the mounting member 7. The space between both ends of the landing main body portion 14 can be enlarged or reduced. In the present embodiment, the width direction (vertical direction in FIG. 6) length of the fitting main body portion 14 is set at the respective end portions so as to enhance the expansion / contraction property of both ends of the fitting main body portion 14. 2 is slightly longer than the vertical length of the opening end surface 6a, and narrows as it goes inward in the circumferential direction (extending direction) of the fitting portion 12, and the width of the central portion in the extending direction is the narrowest width. It is said that. On the inner peripheral surface of the fitting main body 14, a positioning pin 16 is provided as a convex portion at the center in the circumferential direction. The positioning pin 16 can be fitted into the positioning hole 9 of the mount member 7, and the fitting position of the fitting main body portion 14 with respect to the mount member 7 is positioned by fitting both the pins 9 and 16. It is supposed to be. A rib 17 is provided on the outer peripheral surface of the fitting main body portion 14. The rib 17 extends over the entire circumferential direction of the fitting main body portion 14 in a state of protruding from the outer peripheral surface of the fitting main body portion 14, and the protruding length of the rib is the other length at both ends in the extending direction. It is longer than the part.

The pair of fitting legs 15 are also formed as curved strips as shown in FIGS. 2 and 4 to 9. The width direction (vertical direction in FIG. 6) of each fitting leg portion 15 is oriented in the same direction as the width direction of the fitting main body portion 14, and the inner peripheral surfaces of the fitting main body portion 14 and the fitting leg portion 15. Is a continuous circular arc surface. The distance between the distal end portions of the pair of fitting leg portions 15 is narrower than the length between both end portions of the fitting main body portion 14 to form an insertion opening 18 into the fitting portion 12. Can be expanded and contracted based on the bending of the fitting main body 14 and the fitting leg 15 with respect to the center in the circumferential direction of the fitting main body 14. The length in the width direction of each fitting leg portion 15 is narrower than the length in the width direction of the end portion in the fitting main body portion 14, and is shorter than the vertical length of the gap 5a of the opening end surface 6a in the cross member 2. It is said. For this reason, the pair of fitting leg portions 15 are fitted with the fitting main body portion 14 on the outer (bulged) outer peripheral portion of the mounting member 7 and the positioning pins 16 of the fitting main body portion 14 are mounted. When inserted into the positioning hole 9 of the member 7, it enters the cross member 2 through the pair of gaps 5 a and fits the outer peripheral portion of the mount member 7 in the cross member 2. (See FIG. 4).
In this case, in order to facilitate the insertion of the mount member 7 into the fitting portion 12, a guide portion 19 is provided at the distal end portion of each fitting leg portion 15, and both the guide portions 19 are disposed forward. It sets so that it may mutually space apart as it goes.
In addition, ribs are also provided on the outer peripheral surface of each fitting leg 15 so as to reinforce, and each rib is provided in the circumferential direction (extending direction) of each fitting leg 15. It is formed over the entire length.

As shown in FIGS. 1 to 9, the pair of wall portions 13 are arranged in the radial direction from each end portion of the fitting main body portion 14 (the connecting portion between the fitting main body portion 14 and the fitting leg portion 15). Each projectes outward. Each wall part 13 is provided with the obstruction | occlusion wall part 21, the upper wall part 22 and the lower wall part 23 as a pair of opposing wall part, and the side wall part 24 as a connection wall part in this embodiment. . The blocking wall portion 21 faces the gap 5a and closes the gap 5a so that the plate surface faces forward, and the length of the closing wall portion 21 is the same as the width direction of the end portion from the end portion of the fitting main body portion 14. The front surface shape is a rectangular shape whose vertical length is longer than the horizontal length. An end face of the rib 17 is connected to the closing wall portion 21, and the closing wall portion 21 is supported by the rib 17. The upper wall portion 22 projects forward from the upper end portion of the blocking wall portion 21, and its plate surface is directed in the vertical direction. The lower wall portion 23 projects forward from the upper end of the blocking wall portion 21, and the plate surface of the lower wall portion 23 is also directed in the vertical direction. The side wall portion 24 connects the upper and

lower wall portions

22 and 23 on the outer end side of the blocking wall portion 21, and the inner wall surface of the side wall portion 24 is inclined so as to be separated from the fitting portion 12 as it goes forward. ing. The upper wall portion 22, the lower wall portion 23, and the side wall portion 24 constitute a peripheral wall portion 25 that protrudes forward from the peripheral edge portion of the closing wall portion 21, and the fitting portion 12 is formed on the opening end surface 6 a of the cross member 2. When fitted to the mount member 7, as shown in FIGS. 3 and 4, each blocking wall portion 21 is closed to face each gap 5 a, and the upper wall portion 22, the lower wall portion 23, and the side wall portion 24. As a peripheral wall portion 25, the peripheral wall side portion of the opening end portion 6A of the cross member 2 is surrounded from the outside.

As shown in FIGS. 2, 5 to 7, and 9, spring pieces 26 are provided on the upper wall portion 22 of each wall portion 13, respectively. The spring piece 26 is formed by making a notch or a slit in the upper wall portion 22 of the wall portion 13. The spring piece 26 moves downward (from the front portion of the upper wall portion 22 toward the blocking wall portion 21 ( It extends in a cantilever shape so as to incline into the peripheral wall portion 25). Thereby, when the spring piece 26 is bent upward, a spring force is generated in the spring piece 26, and the spring force is applied to the mount member 7. This occurs when the spring piece 26 is bent by the upper wall portion 3a of the cross member 2 that enters the peripheral wall portion 25 when 12 is fitted. The elastic force of the spring piece 26 is easily adjusted by adjusting the width of the spring piece 26 or the like.

When the cover member 10 is attached to the opening end 6A of the cross member 2, the pair of fitting legs 15 in the cover member 10 are mounted on the opening end surface 6a of the cross member 2 as shown in FIG. 7 is pressed. Thereby, the insertion space 18 is expanded, the mount member 7 enters the inside of the fitting portion 12, and the fitting portion 12 is fitted and held on the outer peripheral surface of the mount member 7 (so-called one-touch mounting: FIG. 3 and FIG. 4). Along with this, the peripheral wall side portion of the opening end 6A of the cross member 2 enters the peripheral wall portion 25, and the gaps 5a on both sides of the mount member 7 are respectively closed by the closing wall portion 21, and the opening of the cross member 2 is also closed. A peripheral wall side portion of the end portion is surrounded by the peripheral wall portion 25. This reliably prevents mud, stones and the like from entering the cross member 2 from each gap 5a.
Therefore, if such a cover member 10 is used, the pair of gaps 5a can be easily closed at any time, and even after the excess paint is discharged using the pair of gaps 5a through the painting process. As a result, the gap 5a can be properly dealt with.

When the cover member 10 is attached to the opening end 6A of the cross member 2, the upper wall 3a of the opening end 6A of the cross member 2 that enters the peripheral wall 25 of the cover member 10 The spring piece 26 is bent upward, and the elastic force based on the bending prevents the cover member 10 from shaking up and down with respect to the opening end 6A of the cross member 2. For this reason, it is possible to appropriately cope with the dimensional error of the cross member 2.

Although the embodiments have been described above, the present invention includes the following aspects.
(1) The end structure of the member (cross member 2) is not limited to a structure in which the opening end surface (6a) is attached so as to wrap around a part of the outer peripheral portion of the columnar member (mounting member 7). The cover member 10 is also used for the columnar member (mount member 7) attached to 6a).
It is said that
The cover member characterized by the above-mentioned.
(2) When the shapes and sizes of the

gaps

5a and 5a are asymmetric (when they are different), the respective wall portions 13 (the closed wall portion 21, the upper wall portion 22, the lower wall portion 23, the side walls) The shape and size of the part 24) are set.
(3) The cover member 10 in the above embodiment is used for a connection portion of the suspension arm. That is, FIG. 1 shows a trailing arm 27 that is one of the suspension arms. The trailing arm 27 has a closed cross-sectional structure, and a storage recess portion that is retracted into the opening end surface thereof. Is formed. A columnar support member 28 is held in the storage recess portion of the trailing arm 27 so as to form a pair of gaps 5a (not shown), and the support member 28 is rotatably supported with respect to the vehicle body side. ing. For this reason, the cover member 10 can be used also in such a connecting portion of the trailing arm 27.
(4) In the above embodiment, the spring pieces 26 are provided not only on the upper wall portion 22 but also on both the upper and

lower wall portions

22 and 23 or only on the lower wall portion 23.
(5) When adopting a usage mode in which the side wall portions 24 of the wall portion 13 in the cover member 10 are arranged vertically, the spring piece 26 is provided on at least one of the side wall portions 24. This is also in order to prevent the cover member 10 from rattling in the vertical direction even in such a usage mode.
(6) Do not use positioning pins 16 and positioning pins 16.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2010-261611 filed on Nov. 24, 2010 are incorporated herein as the disclosure of the specification of the present invention. Is.

Claims

The columnar member is attached so as to cross the opening end surface of the member having a closed cross section, and the columnar member protrudes from the opening end surface, and gaps are formed on both sides with respect to the columnar member. A cover member used for an end structure,
An insertion opening that can be expanded and contracted between both end portions with a curved strip, and a fitting portion that fits an outer peripheral portion of the columnar member from the insertion opening;
Walls that are respectively provided on the outer periphery of the fitting portion so as to expand radially outward of the fitting portion, and block the gaps when the fitting portion is fitted to the columnar member. And
Equipped with,
The cover member characterized by the above-mentioned.
In claim 1,
A closed wall portion that faces the gap and closes the gap when the fitting portion is fitted to the columnar member, and a peripheral wall that projects forward from the peripheral edge of the closed wall portion. Each of which is provided with
The peripheral wall portion is set so as to surround a peripheral wall side portion of the opening end when the fitting portion is fitted to the columnar member.
The cover member characterized by the above-mentioned.
In claim 2,
Assuming that the outer peripheral shape of the opening end surface of the member is a substantially rectangular shape,
The peripheral wall portion includes a pair of opposed wall portions that protrude forward from both side portions in the width direction of the fitting portion and are opposed to each other in the peripheral edge portion of the closed wall portion, and the pair of opposed wall portions are And a connecting wall portion connected on the outer end side of the blocking wall portion, respectively,
Of the pair of opposing wall portions and the connecting wall portion, a spring piece is provided on the wall surface facing in the vertical direction during use,
The spring piece is set to be bent outward by the opening end portion when the pair of opposing wall portions and the connecting wall portion surround a peripheral wall side portion of the opening end portion. ,
The cover member characterized by the above-mentioned.
In any one of claims 1 to 3,
On the premise that the outer peripheral portion of the columnar member in the member is provided with either a concave portion or a convex portion fitted into the concave portion,
On the inner surface of the fitting portion, the other of the concave portion or the convex portion is provided,
The cover member characterized by the above-mentioned.
In any one of claims 1 to 4,
The fitting portion is set so that the width thereof becomes narrower toward the center in the circumferential direction,
The cover member characterized by the above-mentioned.