JP5163098B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure, and more particularly to a vehicle door structure in which a reinforcement is provided by providing a reinforcement inside the door.

  As a conventional vehicle door structure, an inside seal member corresponding to the door inner seal member is molded integrally with a corner piece positioned before and after the inside seal member and a rear mold part of the door weather strip. Is known (see, for example, Patent Document 1).

  In such a conventional vehicle door structure, a press-molded outer panel member is provided on the outer surface side of the door inner panel of each door body located on the side surface portion of the vehicle, and a vehicle door trim is provided on the inner surface side. It has been.

  The vehicle door trim is mainly configured by polymerizing a core material and a skin material lined with a foam layer.

  And the said door inner panel and the press molding outer panel member are joined in the peripheral part, The closed cross-section substantially box shape is exhibited.

  Next, the effect of this conventional vehicle door structure will be described.

  In the conventional vehicle door structure configured as described above, the door inner panel and the press-molded outer panel member are joined together at the peripheral portion to exhibit a substantially box shape with a closed cross section, thereby ensuring desired rigidity. ing.

As another vehicle door structure, for example, a structure in which a hollow waist garnish member made of a synthetic resin molded body is provided in a door trim is known (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 5-116537 (paragraphs 0010 to 0021, FIG. 1) Japanese Utility Model Publication No. 6-78036 (paragraphs 0012 to 0025, FIGS. 1 and 2)

  In such a conventional vehicle door structure, the end portion in the vehicle front-rear direction of the door inner panel of the door body is flat at the portion where it is joined to the door outer panel.

  Therefore, there are problems that it is difficult to ensure accuracy due to an increase in the number of joining points and to maintain rigidity.

  Therefore, an object of the present invention is to provide a vehicle door structure that can be easily mounted with good mounting accuracy without reducing the rigidity of the door body.

In order to achieve the above object, a first aspect of the present invention is a door-in that extends along the longitudinal direction in the longitudinal direction of the vehicle inside the door outer panel constituting the door body. In the vehicle door structure having a nail force body, the door outer panel is opposed to the vehicle front-rear direction and is provided with a pair of reinforce mounting portions formed with mounting holes. The door inner reinforce body has a longitudinal direction. And is formed of an extruded molded body having a vertical cross-sectional shape that is extruded along the front and rear end surfaces of the door inner reinforcement main body, facing the pair of reinforcement mounting portions , and bolt holes, respectively. There fixing portion formed is provided et al is, the fixing unit may nip the door inner reinforcement body between a pair of the reinforcement mounting portion In state, it is inserted from the vehicle longitudinal direction in the mounting hole of the reinforcement mounting portions, the bolt screwed into the bolt holes, which features a vehicle door structure which is fixed to the reinforcement mounting portion.

  According to what is described in the present invention, the fixing portions provided on the front and rear end surfaces of the door inner reinforcement main body are opposed to the reinforcement mounting portion of the door main body, The bolt is fixed.

  For example, the door inner reinforcement main body is formed by using a light metal extruded molded body having the same vertical cross-sectional shape in the longitudinal direction, and when the shape of the portion fixed to the reinforcement mounting portion of the door main body is configured, The vertical cross-sectional shape does not change over the entire length.

  Therefore, unlike the prior art, the bolt mounting seat surface has a flat plate shape, so that there is no risk of a decrease in the unit rigidity in the bending direction, and the desired rigidity is maintained.

  Further, the bolt fixing fixes the reinforcement mounting portion of the door inner reinforcement main body to the reinforcement mounting portion, thereby improving the rigidity of the door main body.

  In addition, since the bolt fixing is performed on the solid bottom portion, there is no need to add a separate component for mounting the door inner reinforcement main body. For example, by simply screwing the bolt member, the door The nare force main body can be fixed to the reinforce mounting portion of the door main body.

  And, in a state where the door reinforcement main body is mounted on the reinforcement mounting portion of the door main body, positioning of the door inner reinforcement main body in the vehicle longitudinal direction is performed by the reinforcement mounting portion, and By fixing the bolts, positioning in the vehicle width direction and the vertical direction is performed. For example, even with a small number of mounting points by the bolt members, good mounting accuracy can be ensured.

  Hereinafter, a vehicle door structure according to the best mode of the present invention will be described with reference to the drawings.

  1 to 3 show a vehicle door structure for a vehicle according to an embodiment of the present invention.

  In this embodiment, a front door 10 as a vehicle door is provided so as to be swingable on the vehicle body.

  In the front door 10, a door inner reinforcement main body 13 is extended inside the door outer panel 12 constituting the door main body 11 along the longitudinal direction B of the vehicle.

  The door inner reinforcement body 13 is constituted by an extrusion molded product obtained by cutting an aluminum extrusion molded body as a light metal into a certain length, and as shown in FIG. An extruded product having a cross-section is formed by being extruded along the longitudinal direction, and is configured as a substantially hollow cylindrical body having the same vertical cross-sectional shape at all locations.

  The front and rear end surfaces 13a and 13b of the door inner reinforcement main body 13 are cut substantially vertically, and the upper and lower cover fixing portions 14, as fixing portions provided on the front and rear end surfaces 13a and 13b, Bolt holes 14a, 15a and 16a, 17a are formed in the openings 15, 16 and 17, respectively.

  In this embodiment, these bolt holes 14a and 16a and 15a and 17a are continuous so as to communicate with each other along the longitudinal direction of the door inner reinforcement body 13 when the extrusion molding is performed. Is formed.

  Further, a part of the inner wall portion constituting these bolt holes 14a and 16a and 15a and 17a is partially cut away from the peripheral surfaces of the bolt holes 14a to 17a along the longitudinal direction as shown in FIG. Thus, slits 20 and 21 are formed that allow dimensional expansion in the diameter expansion direction.

  Furthermore, a pair of upper and lower mounting holes 18a, 18a and 19a, 19a are formed in the reinforcement mounting surface portions 18, 19 as the reinforcement mounting portions provided on the door outer panel 12 of the door body 11, respectively.

  Bolt members 22 and 22 are inserted into the mounting holes 18a and 18a and 19a and 19a from the front and rear direction of the vehicle, and project so as to face each other.

  For this reason, as shown in FIG. 1, the bolt shaft portions 22a, 22a and 22a of these bolt members 22, 22 and 22, 22 projecting from the reinforcement mounting surface portions 18 and 19 of the door main body 11, The insertion direction of 22a corresponds with the direction in which the bolt holes 14a-17a along the longitudinal direction of the door inner reinforcement main body 13 are formed.

  Then, the bolt members 22, 22 and 22, 22 are screwed onto the inner peripheral surfaces of these bolt holes 14 a to 17 a, so that the door inner rain is provided on the reinforcement mounting surface portions 18, 19 of the door body 11. The front and rear end surfaces 13a and 13b of the force main body 13 are configured to be bolted.

  The door inner reinforcement body 13 is provided with an extended flange portion 23 that projects integrally toward the upper outer side.

  Further, the extended flange portion 23 is provided with an upper edge portion 23a cut along the shapes of the door body 11 and a door trim member (not shown), as shown in FIGS. The height h1 of the front upper edge 23b located in the front of the vehicle is set to be higher than the height h2 of the rear upper edge 23c located in the rear of the vehicle.

  Further, the extended flange portion 23 is extrusion-molded so that a pair of seal lip engaging convex portions 23e and 23e are integrally formed on a surface 23d facing the elevating glass member (not shown).

  In this embodiment, after the door inner reinforcement main body 13 is extruded, the upper edge portion 23a of the extended flange portion 23 is cut, so that the front upper edge portion 23b is cut. To the rear upper edge portion 23c, the upper edge portion 23 is smoothly formed along the shape of the door body.

  Next, the effect of the vehicle door structure of this embodiment will be described.

  In this embodiment, as shown in FIG. 1, the upper and lower fixed portions 14, 15 and 16, 17 provided on the front and rear end surfaces 13a, 13b of the door inner reinforcement body 13 are The door inner reinforcement main body 13 is positioned so as to be sandwiched by the reinforcement mounting surface portions 18 and 19 from the front and rear sides of the vehicle, facing the reinforcement mounting surface portions 18 and 19 of the door body 11.

  Next, the bolt members 22, 22 and 22, 22 are inserted through the attachment holes 18 a, 18 a and 19 a, 19 a of the reinforcement mounting surfaces 18, 19 so as to face from the front and the rear of the vehicle.

  The bolt members 22, 22 and 22, 22 projecting from the reinforcement mounting surface portions 18, 19 are connected to the bolt shaft portions 22 a, 22 a and 22 a, 22 a through the bolt holes 14 a of the door inner reinforcement body 13. ˜17a is inserted and screwed.

  In the door inner reinforcement body 13 of this embodiment, an annular shape of an aluminum extrusion molded body having the same vertical cross-sectional shape in the longitudinal direction is fixed to the reinforcement mounting surface portions 18 and 18 of the door body 11. Over the entire length from the front end surface 13a to the rear end surface 13b of both end portions, a substantially hollow cylindrical shape that does not change is exhibited.

  Therefore, unlike the prior art, the bolt mounting seat surface has a flat plate shape, so that there is no risk of a decrease in the unit rigidity in the bending direction, and the desired rigidity is maintained.

  Further, by screwing the bolt members 22, 22, and 22, 22, the front end surface 13a and the rear end surface 13b of the door inner reinforcement main body 13 are fixed to the reinforcement mounting surface portions 18 and 19, respectively. The door inner reinforcement main body 13 is mounted in the door main body 11 so that the rigidity of the door main body 11 can be improved.

  Further, the upper and lower cover fixing portions 14, 15 and 16, 17 are opposed to the reinforcement mounting surface portions 18, 19 of the door body 11, and the front and rear end surfaces 13 a, 13 b of the door inner reinforcement body 13 are arranged. However, they are brought into contact with the reinforcement mounting surface portions 18 and 19 so as to be sandwiched from the vehicle front-rear direction.

  For this reason, since positioning in the longitudinal direction of the vehicle is completed, no additional jig or the like is required.

  Moreover, since the bolt holes 14a, 16a and 15a, 17a are formed as openings in the upper and lower fixed portions 14, 16, 15 and 17 as fixing portions, the door inner reinforcement main body 13 is separately mounted. Therefore, the door inner reinforcement main body 13 can be fixed to the reinforcement mounting surface portions 18 and 19 of the door main body 11 only by screwing the bolt member 22.

  In this embodiment, the door inner reinforcement main body 13 can be fixed to the reinforcement mounting surface portions 18 and 19 of the door main body 11 with four bolt members 22.

  That is, the reinforcement mounting surface portions 18 and 19 of the door body 11 face each other so as to sandwich the front and rear end surfaces 13a and 13b of the door inner reinforcement body 13 cut substantially vertically, thereby achieving high accuracy. The door inner reinforcement body 13 is positioned in the vehicle longitudinal direction.

  Further, the bolt inner portions 22a of the four bolt members 22 in total are inserted into the mounting holes 18a, 18a and 19a, 19a of the reinforcement mounting surface portions 18, 19, and face the door inner reinforcement main body facing each other. 13 is screwed into bolt holes 14a, 16a and 15a, 17a provided on the front and rear end faces 13a, 13b, thereby positioning in the vehicle width direction and the vertical direction.

  Therefore, with the four bolt members 22..., Good mounting accuracy can be secured even with a small number of mounting points.

  For this reason, the seal member slidingly contacted with the elevating glass member is held with high accuracy by the seal lip engaging ridges 23e and 23e formed on the upper edge 23a.

  Therefore, as compared with the conventional case where the number of junctions between the panels is increased and it is difficult to ensure accuracy, the raising and lowering operation of the raising and lowering glass member can be performed smoothly.

  And since the said bolt holes 14a-17a are formed simultaneously at the time of extrusion molding, it is not necessary to process separately etc. and can be comprised easily.

  Furthermore, in this embodiment, a part of the inner wall portion of the door inner reinforcement main body 13 constituting the bolt holes 14a and 16a and 15a and 17a is provided with bolt holes 14a to 17a along the longitudinal direction. Slits 20 and 21 that allow dimensional expansion in the diameter expansion direction are formed by partially cutting the peripheral surface.

  For this reason, even if the fitting between the bolt hole 14a and the bolt shaft portion 22a of the bolt member 22 is somewhat tight, the slits 20 and 21 cause the slit width to be increased by deformation in the slit width direction. Dimensional expansion in the radial direction is easily performed.

  At this time, deformation of the door inner reinforcement main body 13 hardly occurs, and there is no possibility that the rigidity is lowered.

  Further, in this embodiment, the extending flange portion 23 has an upper edge portion 23a cut along the shapes of the door body 11 and the inner trim. It can be adapted and the degree of freedom of modeling can be improved.

  Furthermore, in this embodiment, when the door inner reinforcement main body 13 is extruded, the bolt holes 14a, 15a and 16a, 17a are simultaneously extruded.

  Further, the extended flange portion 23 integrally projecting from the door inner reinforcement main body 13 is molded simultaneously with the extrusion molding.

  Then, after the extrusion molding, the upper edge portion 23a of the extending flange portion 23 is cut along the shape of the door main body 11, so that the shape of the door main body 11 can be adapted.

  For this reason, when the door inner reinforcement main body 13 that can be easily attached is mounted on the door main body 11 using the bolt members 22..., The rigidity of the door main body 11 is improved. In particular, the degree of freedom of modeling around the waistline can be obtained, and the appearance quality can be improved.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  That is, in the above-described embodiment, the vehicle door using the front door 10 is shown and described. However, the present invention is not limited to this and may be a door of another part such as a rear door. As long as it has the door inner reinforcement main body 13 extending along the longitudinal direction, the shape, quantity and material are not limited.

  Further, in this embodiment, the door inner reinforcement main body 13 is constituted by an aluminum extrusion-molded body. However, the present invention is not limited thereto, and examples thereof include aluminum alloys, magnesium, beryllium, titanium, and alloys thereof. The shape, quantity, and material are not limited as long as they are made of light metal and have the same vertical cross-sectional shape in the longitudinal direction.

  Further, in this embodiment, the door inner reinforcement main body 13 is fixed to the reinforcement mounting surface portion 18 with four bolt members 22... You may comprise so that it may fix with three or five or more.

  Further, in this embodiment, the extending flange portion 23 has different height direction dimensions due to cutting after extrusion of the upper edge portion 23a cut along the shapes of the door body 11 and the inner trim. Although it is configured to have h1 and h2, the present invention is not limited to this. For example, after extrusion molding, bending is performed in the axial direction so that the shape is adapted to the door main body 11, the inner trim, or the elevating glass member. It may be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a vehicle door body illustrating an overall configuration in a vehicle door structure according to an embodiment of the present invention. It is a vehicle door structure of an embodiment, and is a side view of a door inner reinforcement main part. It is sectional drawing in the position along the AA line in FIG. 2 explaining the structure of a door inner reinforcement main body by the vehicle door structure of embodiment.

Explanation of symbols

10 Front door (vehicle door)
11 Door body 12 Door outer panel 13 Door inner reinforcement body 13a Front end face (end face)
13b Rear end face (end face)
14,16 Upper fixed part (fixed part)
15, 17 Undercoat fixing part (fixing part)
14a-17a Bolt holes 18, 19 Reinforce attachment surface (reinforce attachment)
18a, 19a Mounting holes 20, 21 Slit 22 Bolt member 22a Bolt shaft 23 Extension flange 23a Upper edge

Claims (4)

In the vehicle door structure having a door inner reinforcement main body extending along the longitudinal direction in the longitudinal direction of the vehicle inside the door outer panel constituting the door main body,
The door outer panel is opposed to the vehicle front-rear direction and is provided with a pair of reinforcement mounting portions formed with attachment holes.
The door inner reinforcement main body is formed of an extrusion molded body having a vertical cross-sectional shape formed by being extruded along a longitudinal direction, and the pair of reinforcements on the front and rear end surfaces of the door inner reinforcement main body. respectively mounting portion opposite and fixed portion bolt hole is formed is provided,
The fixing portion is inserted into the attachment hole of the reinforcement mounting portion from the vehicle front-rear direction with the door inner reinforcement body sandwiched between the pair of reinforcement mounting portions, and is screwed into the bolt hole. A vehicle door structure characterized in that the vehicle door structure is fixed to the reinforcement mounting portion by means of a bolt . The sectional shape of the door inner reinforcement body is a substantially annular closed cross section, and the bolt hole is positioned on the annular inner peripheral surface, and a part of the inner wall portion constituting the bolt hole is formed in the longitudinal direction. The vehicle door structure according to claim 1, wherein a slit is provided along the door. The door structure for a vehicle according to claim 1 or 2, wherein the door inner reinforcement body is provided with an extended flange portion integrally projecting outward . 4. The vehicle door structure according to claim 3, wherein the extended flange portion has an upper edge portion that is cut along the shape of the door body .

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