JP4095314B2 - Hollow member mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hollow member mounting structure for fixing a hollow member formed (or integrally formed) with a metal material or a resin material to a mounting object.
[0002]
[Prior art]
Conventionally, various attachment structures for attaching accessory parts such as roof rails and carrier parts to the roof (roof panel) of an automobile have been proposed. For example, in the mounting structure disclosed in Japanese Patent Application Laid-Open No. 2000-43651, a plate-shaped fixing member is disposed inside a support rail of a roof rail integrally formed in a hollow shape, and a screw pin extending vertically downward from the fixing member Is provided. Then, the roof pin of the roof rail is fixed to the roof panel by penetrating the roof of the automobile through the screw pin and attaching a nut or the like from the indoor side to the lower end portion of the screw pin protruding to the lower side of the roof. Yes.
[0003]
In addition, in the mounting structure of a roof rail or the like disclosed in Utility Model Registration No. 2562102, a mounting bracket in which a welding nut is welded and fixed is provided in a molding decorative groove provided in a roof panel of an automobile. The roof rail is fixed to the mounting bracket on the roof panel by inserting a mounting bolt from above and screwing it to the welding nut of the mounting bracket. A work upper opening is provided in the upper part of the roof rail so as to enable a work to be mounted from above with a mounting bolt. However, after the roof rail is fixed with the mounting bolt, a cover plate is attached to the upper opening so that the head of the mounting bolt is not exposed to the outside in consideration of the appearance or the decorative surface. In addition to the above registered gazettes, examples of attaching a cover or cap to the work rail upper opening for the purpose of preventing fasteners such as mounting bolts from being visible from the outside after the roof rail is attached to the roof panel. There are also utility model registration No. 2564344 and utility model 4-98646.
[0004]
[Problems to be solved by the invention]
However, the conventional mounting structure as described above has some drawbacks.
First, in the case of the mounting structure disclosed in Japanese Patent Laid-Open No. 2000-43651, it is necessary to work from the lower side (inside) of the roof of the automobile. In this case, it is necessary to previously attach the roof rail to the vehicle body during the manufacturing process of the automobile. Become. That is, it becomes almost impossible for the dealer after the factory shipment to attach the roof rail according to the customer's request. Moreover, even if the roof rail is attached to the car body in the car factory in advance, the engineer enters the narrow cabin and works while facing the top (ceiling) while sliding, which not only imposes heavy labor on the engineer but also increases productivity. Also decreases. For this reason, there are almost no cases where such a mounting structure is adopted by domestic manufacturers.
[0005]
In this regard, according to the mounting structure of Utility Model Registration No. 2562102, the roof rail can be mounted from the outside (upper side) of the roof, so there is no problem as pointed out in the mounting structure of Japanese Patent Laid-Open No. 2000-43651. . However, in order to enable the installation work from above, it is necessary to previously form a work upper opening in the roof rail itself as a product, and to cover the work upper opening after the installation work is completed. It will be necessary to wear. For this reason, it becomes an appearance that can be clearly seen as if covers are attached to a part of the roof rail, the uniformity and continuity of the surface on the outer surface of the roof rail are lost, and the appearance quality (appearance and design) is greatly impaired . Conversely, for a roof rail of a type that does not dare to form a work upper opening in order to maintain the appearance quality, a conventional mounting structure intended for mounting from the upper side as in Utility Model Registration No. 2562102 is used. It was not possible to adopt.
[0006]
The present invention has been made in view of such circumstances. The objective of this invention is providing the attachment structure of the cavity member which makes it possible to attach the said cavity member with respect to an attachment target object from the outer side, without impairing the external appearance quality of a cavity member.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is for fixing a hollow member having a hollow shape and having a bottom wall portion provided with a through hole and a side wall portion provided with a lateral hole to an attachment object. a mounting structure of the cavity member, and the support member can pass the cavity member bottom wall portion through-hole along with erected on the attachment object, the withdrawal from the distal end portion of the support members is restricted A stopper that is mounted in the vicinity of the tip of the column member in a state, an insertion tool that can enter the inside of the cavity member through a lateral hole in the side wall of the cavity member, and a bottom wall of the cavity member and the attachment state of resilient material for interposing and a underlay, said struts through the through-hole is arranged a cavity member to the attachment object to enter the cavity member between the object in, the insert or transverse direction between the stopper and the cavity member bottom wall portion Force insert and said with pinching the hollow member bottom wall portion and the underlayment, the transverse provided in the side wall portion of the cavity member has a portion of the underlayment between the said insert said attachment object It is the attachment structure of the hollow member characterized by covering a hole .
[0008]
According to this configuration, when the hollow member is fixed to the attachment target, first, the column material erected on the attachment target enters the hollow member through the through hole of the hollow member bottom wall. The hollow member is arranged with respect to the attachment object. In this arrangement, the insertion tool is inserted into the hollow member through the lateral hole in the side wall of the hollow member, and the insertion tool is inserted between the stopper mounted near the tip of the column member and the bottom wall of the hollow member. Forcibly inserted from the side. Then, since the stopper is restricted from detaching from the tip of the column material, the forceful insertion of the insertion tool generates a pressing force in the vertical direction (the direction along the column material). It works in the direction of pressing toward the mounting object. As a result, the cavity member bottom wall is firmly sandwiched between the insertion tool and the attachment object, and the cavity member is fixed to the attachment object. According to this attachment structure, the hollow member can be attached to the attachment target object only from the outside. In addition, there is no need to provide a large working opening in the upper part of the hollow member, and the horizontal hole for inserting the insertion tool provided in the side wall of the hollow member is sufficient, and the hollow member can be easily covered. The appearance quality will not be greatly impaired. Furthermore, according to this structure, the horizontal hole provided in the side wall portion of the hollow member is covered with a part of the underlay made of an elastic material interposed between the bottom wall portion of the hollow member and the attachment object. Therefore, the appearance quality of the hollow member can be kept good even after the attachment is completed. On the other hand, when it is desired to insert the insertion tool into the hollow member from the horizontal hole, it is possible to expose the horizontal hole by pushing down a part of the underlay against the elasticity of the elastic material. The presence does not interfere with the installation work.
[0009]
According to a second aspect of the present invention, in the mounting structure for a hollow member according to the first aspect, the stopper is formed with an inclined surface that comes into contact with the insertion tool, and the stopper has the stopper in an insertion operation. A wedge-shaped tip claw having a first inclined surface slidably contactable with the inclined surface, a second inclined surface that can be joined to the inclined surface of the stopper when the attachment is completed, the second inclined surface, and the wedge-shaped tip An engagement step portion for preventing slipping formed by the back surface of the nail is formed.
[0010]
According to this configuration, when the insertion tool is forcibly inserted from the lateral direction, the inclined surface formed on the stopper and the first inclined surface provided on the wedge-shaped tip claw of the insertion tool mutually guide each other. Thus, the forced insertion of the insertion tool between the stopper and the bottom wall of the hollow member is facilitated. Further, after the stopper has passed over the wedge-shaped tip claw of the insertion tool, the stopper is constituted by a second inclined surface provided on the insertion tool and the back surface of the wedge-shaped tip claw for preventing slipping. The insertion tool is prevented from coming out from between the stopper and the cavity member bottom wall, and the inclined surface of the stopper is joined to the second inclined surface of the insertion tool when the installation is completed. . Therefore, the downward pressing action by the insertion tool becomes continuous, and the hollow member is stably fixed to the attachment object.
[0011]
According to a third aspect of the present invention, there is provided a hollow member mounting structure according to the second aspect, wherein a pair of left and right wedge-shaped tip claws in the insertion tool are provided, and the support column is disposed between the pair of wedge-shaped tip claws. A recess for receiving the material is secured.
[0012]
According to this configuration, the support material is received in the recess between the pair of left and right wedge-shaped tip claws provided on the insertion tool. Therefore, it is possible to forcibly insert the insertion tool from the side between the stopper and the bottom wall of the hollow member mounted near the tip of the support material while avoiding mutual interference between the support material and the insertion tool. It becomes.
[0015]
Invention of Claim 4 is the attachment structure of the hollow member as described in any one of Claims 1-3, Comprising : The said support | pillar material is standingly arranged in the groove | channel formed in the attachment target object, The support | pillar An adjustment sleeve is provided around the material.
[0016]
According to this configuration, it is possible to adjust the situation in which the stopper attached near the tip of the support material falls into the groove formed in the attachment object before the insertion tool is forcibly inserted from the lateral direction. Therefore, it is possible to prevent the problem and prevent the installation work from proceeding smoothly. Further, it is possible to limit or adjust the downward pressing force of the insertion tool against the bottom wall portion of the hollow member and the underlay depending on the length setting of the adjusting sleeve.
[0017]
(Additional remarks) In the above first to fourth aspects, it is preferable that “the hollow member is a roof rail integrally formed in a tubular shape and the attachment object is a roof panel of an automobile”.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
As an embodiment of the present invention, a case where a roof rail 20 as a hollow member is attached to a roof (roof panel) 10 of an automobile as an attachment object will be described (see FIG. 1).
[0019]
As shown in FIGS. 1 and 2, the roof rail 20 includes leg portions 22 and 22 on the front and rear sides of the main body portion 21, respectively. The main body portion and the front and rear leg portions of the roof rail 20 are integrally formed by subjecting an aluminum cylindrical tube to hydroforming. That is, the roof rail 20 is provided as an integral tubular member having a hollow inside. However, as shown in FIGS. 2 and 3, a through hole 25 and a lateral hole 26 are provided in the bottom wall portion 23 and the side wall portion 24 constituting the hollow leg portion 22 of the roof rail, respectively. The inner space of the roof rail leg portion 22 communicates with the later-described molding groove 11 through the through hole 25 and communicates with the outside through the lateral hole 26.
[0020]
Formed on the left and right sides of the upper surface of the roof panel 10 are molding grooves 11 (see FIG. 3) extending in the longitudinal direction of the vehicle body. In a car without a roof rail attached, the molding groove 11 is covered with a roof molding (not shown). On the other hand, when the roof rail 20 is attached to the automobile, a part of the roof molding is notched at the position where the leg portion 22 of the roof rail is disposed, and the molding groove 11 is exposed. A welding nut 12 is fixed by welding to the lower side of the bottom wall portion of the molding groove 11 to be exposed. Since the molding groove 11 and the welding nut 12 are pre-applied to the automobile in the manufacturing process at the automobile factory, the automobile can be retrofitted with the roof rail 20 in any automobile supplied from the manufacturer to the dealer.
[0021]
FIG. 3 shows a state where the roof rail 20 is completely attached to the roof panel 10. As shown in FIG. 3, components of the roof rail mounting structure include a support bolt 30 as a support material, a height adjusting sleeve 40, a stopper plate 50 as a stopper, a driving plate 60 as an insertion tool, and an underlay 70.
[0022]
The support bolt 30 as a support material has a head portion 31 at its upper end and a male screw portion 32 at its lower end. By screwing the male screw portion 32 at the lower end of the support bolt into the female screw portion of the welding nut 12, the support bolt 30 is erected vertically with respect to the bottom wall of the molding groove 11. The adjustment sleeve 40 is a cylindrical member that is externally fitted to the shaft portion of the support bolt 30 that is erected on the bottom wall of the molding groove.
[0023]
As shown in FIGS. 3 and 4, the stopper plate 50 as a stopper is a flat, substantially rectangular parallelepiped plate member having a hole 51 in the center. The central hole 51 is provided to receive the shaft portion of the support bolt 30, and plays a role of guiding the stop plate 50 to move up and down along the shaft portion when the bolt shaft portion is received. The upper surface of the stop plate 50 is provided as a horizontal surface 52 that contacts the lower surface of the head portion 31 of the support bolt. On the other hand, the lower surface of the stopper plate 50 is provided as an inclined surface 53 that is not parallel to the upper surface, that is, an inclined surface 53 that is tapered from one side of the four sides to the opposite side.
[0024]
As shown in FIG. 6 (A), the support bolt 30 is erected with respect to the bottom wall of the molding groove in a state where the adjusting sleeve 40 and the stop plate 50 are mounted on the shaft portion of the support bolt 30. All of the head portion 31 of the support bolt, the stop plate 50, and the adjustment sleeve 40 are set to a size that can pass through the through hole 25 provided in the bottom wall portion 23 of the roof rail leg portion without difficulty. On the other hand, the retaining plate 50 mounted near the upper end of the support bolt 30 is restricted from being detached from the support bolt 30 by the head portion 31 of the support bolt.
[0025]
As shown in FIGS. 3 and 5, the driving plate 60 as an insertion tool is a slightly flat plate material having a substantially U-shaped plane. The driving plate 60 has a pair of left and right wedge-shaped tip claws 61, 61. A recess 62 for receiving the shaft portion of the support bolt 30 is secured between the wedge-shaped tip claws 61, 61. ing. The lower surface of the driving plate 60 is provided as a horizontal surface 63 for contacting the upper surface of the bottom wall portion 23 of the roof rail leg portion. On the other hand, two types of inclined surfaces (first inclined surface 64 and second inclined surface 65) that are not parallel to the horizontal surface 63 are formed on the upper surface side of the driving plate 60.
[0026]
That is, a first inclined surface 64 is formed on the upper surface side of each wedge-shaped tip claw 61 so as to be in sliding contact with the inclined surface 53 of the stopper plate 50 when the driving plate 60 is inserted. Further, a second inclined surface 65 that can be joined to the inclined surface 53 of the stop plate 50 when the insertion of the driving plate 60 is completed is formed on the upper surface side of the driving plate 60 other than the wedge-shaped tip claws 61. The first inclined surface 64 and the second inclined surface 65 of each wedge-shaped tip claw are continuous via a vertical back surface 66 formed behind each wedge-shaped tip claw 61. The wedge plate 60 has a vertical back surface 66 and a second inclined surface 65, so that an engagement step portion (65, 66) for preventing removal is defined on the driving plate 60.
[0027]
The underlay 70 is a sealing member that is interposed between the upper surface of the roof panel 10 and the bottom wall portion 23 of the roof rail leg portion 22 and is made of an elastic material (for example, rubber or soft plastic). The underlay 70 is formed in a shape that surrounds the molding groove 11 and opens the molding groove upward. The underlay 70 is intended to prevent rainwater or the like from entering the molding groove 11 in the first place. However, as shown in FIGS. 2, 3 and 6A, the roof rail leg is used. The peripheral edge portion (part) 71 of the underlay 70 extending upward along the side wall portion 24 of the portion 22 serves to cover the lateral hole 26 provided in the side wall portion 24. For this reason, normally, the horizontal hole 26 is covered and covered by the part 71 of the underlay, and the presence of the horizontal hole 26 cannot be recognized in appearance. On the other hand, as shown in FIG. 6 (B), the lateral hole 26 can be exposed to the outside by pushing down a part 71 of the underlay against the elasticity.
[0028]
Next, the attachment procedure of the roof rail 20 in this embodiment is demonstrated.
First, as shown in FIG. 6 (A), with the adjusting sleeve 40 and the retaining plate 50 inserted through the shaft portion of the support bolt 30, the male screw portion of the support bolt 30 is attached to the welding nut 12 at the bottom of the molding groove 11. The support bolt 30 is erected vertically by screwing. Next, the underlay 70 is disposed on the roof panel 10, and the leg portions 22 of the roof rail 20 are disposed on the underlay 70. At this time, the head portion 31 of the support bolt and the stopper plate 50 are caused to enter the roof rail 20 through the through hole 25 of the bottom wall portion 23 of the roof rail leg portion. The height of the adjustment sleeve 40 is set to be approximately equal to the sum of the depth of the molding groove 11, the thickness of the underlay 70, and the thickness of the bottom wall portion 23. For this reason, in the state of FIG. 6A, the adjustment sleeve 40 located on the lower side of the stop plate 50 prevents the stop plate 50 from falling into the molding groove 11, and the stop plate 50 is attached to the roof rail leg portion. It is held above the bottom wall 23.
[0029]
Subsequently, as shown in FIG. 6B, the lateral hole 26 provided in the side wall portion 24 of the roof rail leg portion is exposed to the outside by pushing down the peripheral edge portion 71 of the underlay 70 against its elasticity. Then, the driving plate 60 is caused to enter the leg portion 22 of the roof rail through the lateral hole 26, and the driving plate 60 is forcibly inserted from the lateral direction between the bottom wall portion 23 of the roof rail and the stopper plate 50.
[0030]
In the initial stage of forced insertion of the driving plate 60, the first inclined surface 64 formed on each wedge-shaped tip claw 61 of the driving plate contacts the lower inclined surface 53 of the stop plate 50. Then, as the driving plate 60 is pushed in from the right to the left in the figure, the stopper plate 50 is gradually raised based on the guide relationship between the first inclined surface 64 and the lower inclined surface 53 of the stopper plate. When the upper horizontal surface 52 of the stop plate 50 abuts against the head portion 31 of the support bolt and further upward movement of the stop plate 50 is restricted, based on the force of pushing the driving plate 60 from right to left, A force is generated that the lower inclined surface 53 of the stop plate pushes the driving plate 60 downward. This downward pressing force correlates with the magnitude of the force when the driving plate 60 is pushed from right to left, and gradually increases as the driving plate 60 is pushed.
[0031]
If the driving plate 60 is further inserted from the right to the left while resisting the force that the stopper plate 50 pushes the driving plate 60 downward, the left end portion of the stopper plate 50 rides over the top portion of the wedge-shaped tip claw 61, and the stopper plate 50 The lower inclined surface 53 is joined to the second inclined surface 65 of the driving plate 60 (see FIG. 3). Then, the left end side surface of the stop plate 50 is joined to the back surface 66 of each wedge-shaped tip claw, and the stop plate 50 is opposed to the acute-angled engaging step portion constructed by each back surface 66 and the second inclined surface 65. The whole fits in. This fitting prevents the driving plate 60 from coming off in the reverse direction (the direction from left to right).
[0032]
Even after the lower inclined surface 53 of the stop plate 50 is joined to the second inclined surface 65 of the driving plate 60, the pressing force that the stop plate 50 pushes the driving plate 60 downward remains sufficiently. The bottom wall portion 23 and the underlay 70 of the roof rail leg portion are firmly sandwiched between the driving plate 60 and the roof panel 10 (see FIG. 3). Thus, the fixing of the roof rail 20 to the roof panel 10 is completed.
[0033]
Note that the pressing force when the driving plate 60 presses the roof panel 10 with the roof rail bottom wall portion 23 and the underlay 70 sandwiched therebetween is adjusted between the driving plate 60 and the bottom wall of the molding groove 11. It is limited to a certain limit by the high sleeve 40, and an excessively large pressing force is prevented from acting on the roof rail bottom wall portion 23 and the underlay 70. That is, the adjustment sleeve 40 also functions as a pressing force regulating means for regulating the pressing force when the driving plate 60 presses the roof panel 10 downward within a predetermined limit.
[0034]
(Effects) In the present embodiment, the roof rail bottom wall portion 23 in a state in which the support bolts 30 erected on the roof panel 10 are inserted into the leg portions 22 of the roof rail through the through holes 25 of the roof rail bottom wall portion 23. A mounting structure for fixing the roof rail 20 to the roof panel 10 by forcibly inserting the driving plate 60 from the lateral direction between the stopper plate 50 and the stopper plate 50 is employed. For this reason, it is not necessary to form an opening for mounting work in the upper part of the roof rail 20 which is a product, and it is not necessary to install covers for closing the working upper opening. Therefore, the entire roof rail 20 can be integrally formed by hydroforming, the surface uniformity and continuity on the outer surface of the roof rail 20 are maintained, and the appearance quality (appearance and design) is improved. In addition, since the horizontal hole 26 provided in the side wall part 24 of the roof rail 20 is covered with a part of the underlay 70 except at the time of attachment work, the designability is not impaired by the exposure of the horizontal hole 26.
[0035]
Moreover, according to this embodiment, the attachment of the roof rail 20 can be completed only by the operation | work from the outer side (upper side) of the roof panel 10, and the work from the lower side (inner side) of the roof of a motor vehicle is not required. For this reason, it becomes possible for the dealer after the factory shipment to retrofit the roof rail 20 according to the customer's request.
[0036]
(Modification) The embodiment of the present invention may be modified as follows.
In the above embodiment, the support bolt 30 is erected on the bottom of the molding groove 11 formed in the roof panel 10, but the support bolt 30 may be erected directly on the surface of the roof panel 10. In this case, the adjustment sleeve 40 is unnecessary.
[0037]
-The material of the support | pillar material which is a component of the attachment structure of this invention, a stopper, and an insertion tool may be resin (for example, engineering plastics) other than a metal.
[0038]
-You may employ | adopt the attachment structure of this invention for attachment of the integrally formed type | mold bar handle (a kind of handle) installed on the trunk lid of a motor vehicle.
[0039]
【The invention's effect】
As described above in detail, according to the mounting structure of the hollow member of the present invention, the hollow member can be mounted to the mounting object from the outside without impairing the appearance quality of the hollow member.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a roof rail attached to a roof panel.
FIG. 2 is a perspective view showing a leg portion of a roof rail.
FIG. 3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is a perspective view showing a stopper plate as a stopper.
FIG. 5 is a perspective view showing a driving plate as an insertion tool.
FIGS. 6A and 6B are cross-sectional views corresponding to FIG. 3 showing a roof rail attachment procedure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Roof panel (attachment object), 11 ... Mole groove (groove formed in the attachment object), 20 ... Roof rail (cavity member), 23 ... Bottom wall part, 24 ... Side wall part, 25 ... Through-hole, 26 DESCRIPTION OF SYMBOLS: Side hole, 30 ... Support bolt (support material), 31 ... Head part, 40 ... Adjusting sleeve, 50 ... Stop plate (stopper), 53 ... Inclined surface of stop plate, 60 ... Driving plate (insertion tool), 61 ... wedge-shaped tip claw, 62 ... concave portion, 64 ... first inclined surface, 65 ... second inclined surface, 66 ... back surface of wedge-shaped tip claw (65 and 66 constitute an engaging step), 70 ... Underlay, 71 ... Part of the underlay.

Claims (4)

A cavity member mounting structure for fixing a cavity member having a hollow shape and having a bottom wall portion provided with a through hole and a side wall portion provided with a lateral hole to an attachment object. ,
And struts which can pass through the cavity member bottom wall portion through-hole along with erected on the attachment object, in the vicinity of the tip portion of the support members in a state of detachment is restricted from the tip portion of the strut member A stopper to be mounted, an insertion tool that can enter the inside of the cavity member through a lateral hole in the side wall of the cavity member, and a space between the bottom wall of the cavity member and the attachment object With a base made of elastic material ,
In a state where the strut member via the through hole is arranged a cavity member to the attachment object to enter the cavity member, transverse the insert between the stopper and the cavity member bottom wall portion forcing inserted from the direction, the pinching of the hollow member bottom wall portion and said underlayment between the with the insert attachment object, provided in the side wall portion of the cavity member has a portion of said underlayment A mounting structure for a hollow member, which covers the lateral hole . The stopper is formed with an inclined surface that comes into contact with the insertion tool,
The insertion tool includes a wedge-shaped tip claw having a first inclined surface that can slide in contact with the inclined surface of the stopper during an insertion operation, and a second inclined surface that can be joined to the inclined surface of the stopper when installation is completed. 2. The hollow member mounting structure according to claim 1, wherein an engagement step portion for preventing slipping is formed which includes a second inclined surface and a back surface of the wedge-shaped tip claw. .   The wedge-shaped tip claw in the insertion tool is provided in a pair of left and right, and a recess for receiving the support material is secured between the pair of wedge-shaped tip claws. The hollow member mounting structure. The said support | pillar material is standingly installed in the groove | channel formed in the said attachment target object, The adjustment sleeve is provided in the circumference | surroundings of the support | pillar material, The any one of Claims 1-3 characterized by the above-mentioned. The hollow member mounting structure described in 1.

Images