Door structure of vehicle side door

Abstract

To provide a door structure of a side door for a vehicle capable of suppressing deflection of a pull handle while avoiding increase in mass and cost.SOLUTION: A second trim member 33, which is provided on a vehicle interior side of a first trim member 22 with a space therebetween and forms a pull handle PH between the first trim member 22 and the second trim member 33, is a longitudinal member that is long in a front-rear direction, and includes a front fastening portion 36 fixed to a door panel 12 on a front side and a rear fastening portion 37 fixed to the door panel 12 on a rear side. A panel fixing unit 50 fixed to a door panel 12 is arranged between a front fastening part 36 and a rear fastening part 37 on the vehicle interior side of the second trim member 33, and the second trim member 33 abuts on the panel fixing unit 50 when a force heading for the vehicle interior side is applied to the second trim member 33.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a door structure of a vehicle side door.

Background Art

[0002] Patent Document 1 below discloses a door trim of a vehicle side door as a vehicle side door. An armrest on which an elbow or the like can be placed is provided on the door trim, and a pull handle for closing the door may be provided on the armrest. In the door trim described in Patent Document 1 below, a member forming the armrest, specifically, a portion forming a gripping portion facing the outside of the vehicle body and catching the fingers of the occupant is long in the vehicle front-rear direction. When the occupant closes the side door using the pull handle, a relatively large load is applied and bending is likely to occur. Therefore, conventionally, it has been necessary to take measures to ensure the rigidity of the pull handle, such as changing the material of the resin to glass fiber or the like, increasing the plate thickness, making the cross-sectional shape such that the second moment of area is increased, or the like. However, such measures have a problem that they lead to an increase in mass and cost.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the door trim described in Patent Document 1 above, a member forming the armrest, specifically, a portion forming a gripping portion facing the outside of the vehicle body and catching the fingers of the occupant is long in the vehicle front-rear direction. When the occupant closes the side door using the pull handle, a relatively large load is applied and bending is likely to occur. Therefore, conventionally, it has been necessary to take measures to ensure the rigidity of the pull handle, such as changing the material of the resin to glass fiber or the like, increasing the plate thickness, making the cross-sectional shape such that the second moment of area is increased, or the like. However, such measures have a problem that they lead to an increase in mass and cost.

[0005] The present invention has been made in view of such circumstances, and an object thereof is to provide a door structure for a vehicle side door that can suppress deflection of a pull handle while avoiding an increase in mass and cost.

Means for Solving the Problems

[0006] In order to solve the above problems, the door structure of a vehicle side door disclosed in the present application has the following configuration. (1) A door structure for a vehicle side door, The vehicle side door includes a door panel and a door trim that covers the interior side of the door panel in the vehicle compartment. The door trim includes a first trim member that serves as a main body covering the door panel, and a second trim member that is provided at an interval on the interior side of the vehicle compartment of the first trim member and forms a pull handle between the first trim member. The second trim member is a longitudinally long member in the front-rear direction, and has a front fastening portion fixed to the door panel on the front side and a rear fastening portion fixed to the door panel on the rear side. The door trim is configured to include a panel fixing unit provided in a fixed manner to the door panel. The panel fixing unit is disposed on the interior side of the vehicle compartment of the second trim member and between the front fastening portion and the rear fastening portion. A door structure for a vehicle side door configured such that when a force acting toward the interior side of the vehicle compartment acts on the second trim member, the second trim member abuts against the panel fixing unit.

[0007] In the door structure of the side door for a vehicle disclosed in the present application, the second trim member forming the pull handle has a large distance between the front fastening portion and the rear fastening portion, and when a passenger closes the side door using the pull handle, bending is likely to occur between them. However, according to the door structure of the side door for a vehicle disclosed in the present application, when a passenger closes the side door using the pull handle, the second trim member abuts against the panel fixing unit, and the bending of the second trim member is restricted. That is, according to the door structure of the side door for a vehicle disclosed in the present application, it is possible to suppress the bending of the pull handle while avoiding an increase in mass and cost. In the door structure of the side door for a vehicle disclosed in the present application, the "panel fixing unit" is not particularly limited, such as a switch base, an inside handle, a lighting device, etc., but it is preferably a unit that has been conventionally fixed to the door panel. For such a unit, there is no need to add members or structures for fixing the unit to the door panel, so an increase in mass and cost can be reliably suppressed.

[0008] Further, in the door structure of the side door for a vehicle having the above configuration, it is possible to adopt various aspects shown below.

[0009] (2) The door trim has an armrest, The second trim member is configured to form a part of the side wall on the outside of the vehicle compartment in the armrest, The panel fixing unit is an inside handle unit for opening and closing the side door for the vehicle from inside the vehicle compartment, and is arranged on the armrest. The door structure of the side door for a vehicle according to item (1).

[0010] The inside handle is subjected to a large force during operation by the passenger and is preferably fixed to the door panel. Also, since the inside handle and the pull handle are arranged at positions close to each other, the operability during opening and closing of the side door is high. That is, the inside handle unit is suitable as the "panel fixing unit" in the door structure of the side door for a vehicle disclosed in the present application.

[0011] (3) A bracket having a support surface that projects toward the inside of the vehicle compartment and faces upward is fixed to the door panel. The inside handle unit includes a handle body that can be rotated in the vertical direction and a base that rotatably holds the handle body. The base has an attachment portion for attaching to the door panel in front of the handle body. In the attachment portion, together with the front fastening portion of the second trim member, it is fastened on the support surface of the bracket. The door structure of the side door for a vehicle according to item (2).

[0012] The door structure of the side door for a vehicle with this configuration has a structure in which the inside handle unit and the second trim member are fastened together, and can have a simpler structure, and can further suppress an increase in mass and cost. In the door structure of the side door for a vehicle with this configuration, at least the section where deflection occurs can be shortened by the length of the inside handle in the front-rear direction.

[0013] (4) A displacement restricting portion for restricting displacement of the rear end portion of the base in the vehicle compartment interior and exterior direction with respect to the bracket is provided on the rear side of the handle body in the base. The door structure of the side door for a vehicle according to item (3).

[0014] The door structure of the side door for a vehicle with this configuration avoids a situation where the inside handle unit tilts around the attachment portion provided on the front end side of the base due to the presence of the displacement restricting portion, and the inside handle unit can surely suppress the deflection of the second trim member.

[0015] (5) The base has a protruding portion that protrudes downward at the rear end portion. The bracket has a hole portion into which the protruding portion fits. The displacement restricting portion is configured to include the protruding portion and the hole portion. The door structure of the side door for a vehicle according to item (4).

[0016] The door structure of the vehicle side door with this configuration does not require work to be fixed in the displacement restricting portion, and only the fastening work in the mounting portion is required, so that the assembly work of the door trim can be simplified.

[0017] (6) The door panel is composed of an outer panel and an inner panel. The inner panel has a service hole. The second trim member is fastened such that the front fastening portion is fastened to the edge portion on the front side of the service hole in the inner panel, and the rear fastening portion is fastened to the edge portion on the rear side of the service hole, and is the door structure of the vehicle side door according to any one of items (1) to (5).

[0018] In the door structure of the vehicle side door with this configuration, since the service hole is provided in the inner panel, the locations for fixing to the door panel are restricted, and it is difficult to fix the second trim member to the door panel in the middle between the front fastening portion and the rear fastening portion. Therefore, the door structure of the vehicle side door disclosed in the present application is suitable for the vehicle side door with this configuration.

Effect of the Invention

[0019] According to the present invention, it is possible to provide a door structure for a vehicle side door that can suppress the deflection of the pull handle while avoiding an increase in mass and cost.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiment for Carrying out the Invention

[0021] The door structure of the vehicle side door of the present invention is adopted in the side door 10 for vehicles (vehicles), and the side door 10 of the present embodiment will be described in detail with reference to FIGS. 1 to 9. In a part of the drawings, directions are indicated using the reference signs Fr, Rr, IN, OUT, U, D, which represent the front side, rear side, inner side of the passenger compartment (vehicle compartment) in the vehicle width direction, outer side of the vehicle compartment, upper side, and lower side of the vehicle, respectively.

[0022] The side door 10 of the present embodiment is a front door, and as shown in Fig. 1, it includes a door panel 12 made of a steel plate and a door trim 14. The door panel 12 is composed of an outer panel 16 and an inner panel 18. The door trim 14 is attached so as to cover the vehicle interior side of the inner panel 18.

[0023] The door trim 14 mainly consists of a generally plate-shaped lower board 20 that constitutes the relatively lower part, a generally plate-shaped upper board 21 that constitutes the relatively upper part, and a middle board 22 that is disposed between the lower board 20 and the upper board 21 and is recessed toward the outside of the vehicle compartment. Also, an armrest portion 24 is provided on the vehicle compartment inner side of the middle board 22. The armrest portion 24 extends in the vehicle longitudinal direction, and an armrest AR is formed on the upper surface side of the rear side. Further, in front of the armrest AR, an inside handle IH for opening and closing the side door 10 from the vehicle compartment is arranged. Also, as shown in FIGS. 2 to 4, a gap is formed between the armrest portion 24 and the middle board 22, and this gap functions as a pull handle PH that a passenger grips when opening and closing the side door 10.

[0024] As shown in FIGS. 1 and 4, the armrest portion 24 includes a main board member 30, an armrest member 31, a cover member 32, and a pull handle member 33. The main board member 30 forms generally the lower part of the outer contour portion that bulges toward the vehicle compartment inner side of the armrest portion 24. The armrest member 31 covers the upper surface of the rear side of the main board member 30 and forms an elbow rest surface (armrest AR) facing upward on which a passenger can place an arm. The cover member 32 is disposed on the front side of the armrest member 31 and covers the periphery of the inside handle IH and the upper surface of the front side of the main board member 30. The pull handle member 33 extends downward from the outer edges on the vehicle compartment outer side of the armrest member 31 and the cover member 32 to form a side wall facing the middle board 22, and it is possible for a passenger to hook a finger when opening and closing the side door 10. And in the present embodiment, the middle board 22 corresponds to the first trim member, and the pull handle member 33 corresponds to the second trim member.

[0025] The pull handle member 33 is a longitudinally long plate-like member in the front-rear direction, and is attached at a first fastening portion 36 provided at the front end and a second fastening portion 37 provided at the rear end. Since a large force directed toward the vehicle interior is applied to the pull handle member 33 when an occupant closes the side door 10, the first fastening portion 36 and the second fastening portion 37 are fastened to the inner panel 18 of the door panel 12.

[0026] Incidentally, as shown in FIGS. 2 and 3, the inner panel 18 is formed with a service hole 18a for performing work such as maintenance on functional components disposed between the outer panel 16 and the inner panel 18, and the service hole 18a is covered with a resin service hole cover 18b. Since the pull handle member 33 is disposed at a position crossing the service hole 18a with respect to the inner panel 18, the second fastening portion 37 is fastened to the edge portion on the rear side of the service hole 18a, and the first fastening portion 36 is fastened to the edge portion on the front side of the service hole 18a.

[0027] Regarding the fastening structure of the second fastening portion 37, as shown in FIG. 5, a metal first bracket 40 is fixed to the edge portion on the rear side of the service hole 18a so as to extend forward, and the second fastening portion 37 is fastened to the first bracket 40 together with the middle board 22.

[0028] Also, the fastening structure of the first fastening portion 36 will be described in detail with reference to FIGS. 3 and 6 to 9. A metal second bracket 42 is fixed to the edge portion on the front side of the service hole 18a, and the first fastening portion 36 is fastened to the second bracket 42. As shown in FIG. 6, the second bracket 42 is generally an L-shaped member in a view from the vehicle front-rear direction, and includes a fixing portion 43 which is a portion fixed to the inner panel 18, and a pedestal portion 44 which projects from the fixing portion 43 toward the vehicle interior side and forms a support surface 44a facing upward.

[0029] As shown in FIGS. 7 and 8, the first fastening portion 36 is formed in the pull handle member 33 so as to project from the lower end thereof toward the vehicle interior side with respect to the side wall portion 33a standing upright facing the outside of the vehicle compartment. The first fastening portion 36 is aligned with the upper surface side of the pedestal portion 44 of the second bracket 42 and fastened from above by a screw 46. The second bracket 42 is also provided for fixing the inside handle unit 50 to the door panel 12 (inner panel 18) as shown in FIGS. 6 to 8. The inside handle unit 50 includes a handle body 52 that can be rotated in the vertical direction and a base 54 that rotatably holds the handle body 52. When the front end side of the handle body 52 is pulled upward, the lock mechanism of the side door 10 is configured to be released. The base 54 has a mounting portion 54a for mounting to the pedestal portion 44 of the second bracket 42 in front of the handle body 52. By fastening the first fastening portion 36 and the mounting portion 54a to the pedestal portion 44 with the screw 46, the pull handle member 33 and the inside handle unit 50 are fastened together. The inside handle IH in the present embodiment has a configuration in which the handle body 52 is pulled upward. However, the mounting portion 54a provided in front of the handle body 52 can firmly suppress the force during operation input and avoid a situation where the inside handle unit 50 floats.

[0030] Also, due to the above configuration, most of the inside handle unit 50 is located on the rear side of the first fastening portion 36 of the pull handle member 33. As shown in FIGS. 3 and 6, ribs 33b are erected on the back surface (vehicle interior side surface) of the side wall portion 33a of the pull handle member 33, and the tips of the ribs 33b are adjacent to the inside handle unit 50. More specifically, the base 54 of the inside handle unit 50 has a pair of standing wall portions 54b that rotatably hold the handle body 52, and the standing wall portions 54b and the ribs 33b of the pull handle member 33 are in an adjacent positional relationship.

[0031] As a result, when the occupant closes the side door 10, even if a force acting toward the interior of the vehicle compartment is applied to the pull handle member 33 and bending occurs between the first fastening portion 36 as the front fastening portion and the second fastening portion 37 as the rear fastening portion, the rib 33b of the pull handle member 33 abuts against the inside handle unit 50 as the panel fixing unit. Therefore, the dimension L1 of the portion where bending occurs in the pull handle member 33 becomes smaller than the distance L0 between the first fastening portion 36 and the second fastening portion 37, and the bending of the pull handle member 33 can be suppressed. Thus, according to the door structure of the side door 10 of the present embodiment, there is no need to take measures to ensure the rigidity of the pull handle member 33 by changing the resin material to glass fiber or the like, increasing the plate thickness, or adopting a cross-sectional shape with a large second moment of area. It is possible to suppress the bending of the pull handle member 33 while avoiding an increase in mass and cost.

[0032] Also, as shown in FIG. 9, the inside handle unit 50 has a protrusion 54c that protrudes downward at the rear end portion (the rear side of the handle main body 52). On the other hand, the second bracket 42 has a pedestal portion 44 with a fitting hole (hole portion) 44b. The inside handle unit 50 is fastened at the attachment portion 54a in a state where the protrusion 54c is fitted into the fitting hole 44b of the second bracket 42. That is, the door structure of the side door 10 of the present embodiment includes a displacement restricting portion 60 constituted by the protrusion 54c and the fitting hole 44b. Therefore, according to the door structure of the side door 10 of the present embodiment, when the occupant closes the side door 10, even if a force acting toward the interior of the vehicle compartment is applied from the pull handle member 33 to the inside handle unit 50, a situation where the inside handle unit 50 inclines about the attachment portion 54a in the vehicle longitudinal direction is avoided, and the inside handle unit 50 can surely suppress the bending of the pull handle member 33.

[0033] <Other Embodiments> Note that the present invention is not limited to the above-described embodiments, and can be implemented in various forms with various changes and improvements based on the knowledge of those skilled in the art.

[0034] In the above embodiment, the inside handle unit 50 as the panel fixing unit is fastened together with the first fastening portion 36 as the front fastening portion, and it has been assumed that with a simple configuration, an increase in mass and cost can be further suppressed. However, the position where the panel fixing unit is fixed to the door panel 12 may be different from the front fastening portion. For example, by shifting the panel fixing unit backward from the front fastening portion, the section where deflection occurs can be made shorter, and deflection can be further suppressed.

[0035] In the above embodiment, the panel fixing unit is the inside handle unit 50, but it is not limited thereto. For example, it may be a switch base, a lighting device, or the like. However, if a unit that is preferably fixed to the door panel 12 because a large force acts thereon, such as the inside handle unit employed in the door structure of the above embodiment, is adopted, there is no need to newly add members or structures for fixing the unit to the door panel, so an increase in mass and cost can be surely suppressed.

[0036] In the above embodiment, the displacement restricting portion 60 is formed by the inside handle unit 50 having the protrusion 54c and the second bracket 42 having the fitting hole 44b, respectively, but it is not limited thereto, and various configurations can be adopted.

[0037] In the above embodiment, the door structure of the side door for an automobile is exemplified, but the present invention is not limited thereto, and it can be widely applied to a side door for a vehicle having a configuration in which a pull handle is provided between two members in other vehicles, railways, airplanes, ships, etc.

Explanation of Reference Numerals

[0038] 10… Side door [vehicle side door], 12… Door panel, 14… Door trim, 16… Outer panel, 18… Inner panel, 18a… Service hole, 22… Middle board [first trim member], 24… Armrest part, AR… Armrest, IH… Inside handle, PH… Pull handle, 33… Pull handle member [second trim member], 33a… Side wall part, 37… Second fastening part [rear fastening part], 38… Third fastening part [front fastening part], 42… Second bracket, 44a… Support surface, 44b… Fitting hole [hole part], 50… Inside handle unit [panel fixing unit], 52… Handle body, 54… Base, 54a… Mounting part, 54c… Protrusion, 60… Displacement restricting part

Claims

1. A door structure for a vehicle side door, wherein the vehicle side door includes a door panel and a door trim that covers the inner side of the door panel within the vehicle compartment, the door trim includes a first trim member that serves as a main body covering the door panel, and a second trim member that is provided at an interval on the inner side of the vehicle compartment of the first trim member and forms a pull handle between the second trim member and the first trim member, the second trim member is a longitudinally long member in the front-rear direction, and has a front fastening portion fixed to the door panel on the front side and a rear fastening portion fixed to the door panel on the rear side, the door trim is configured to include a panel fixing unit fixedly provided with respect to the door panel, the panel fixing unit is disposed on the inner side of the vehicle compartment of the second trim member and between the front fastening portion and the rear fastening portion, A door structure for a vehicle side door configured such that when a force acting toward the inner side of the vehicle compartment is applied to the second trim member, the second trim member abuts against the panel fixing unit.

2. the door trim has an armrest, the second trim member is configured to form a part of the side wall on the outer side of the vehicle compartment in the armrest, the panel fixing unit is an inside handle unit for opening and closing the vehicle side door from within the vehicle compartment, and is disposed on the armrest. The door structure of the vehicle side door according to claim 1.

3. A bracket having a support surface that projects toward the inner side of the vehicle compartment and faces upward is fixed to the door panel, the inside handle unit includes a handle body that can be rotated in the vertical direction and a base that rotatably holds the handle body, the base has an attachment portion for attaching to the door panel in front of the handle body, and at the attachment portion, together with the front fastening portion of the second trim member, is fastened on the support surface of the bracket. The door structure of the vehicle side door according to claim 2.

4. A displacement restricting portion for restricting displacement of the rear end portion of the base in the in-vehicle / out-vehicle direction with respect to the bracket is provided on the rear side of the handle body in the base. The door structure of the vehicle side door according to claim 3.

5. the base has a protrusion projecting downward at the rear end portion The bracket has a hole into which the protrusion fits. The displacement restricting portion includes the protrusion and the hole, and the door structure of the side door for a vehicle according to claim 4. **Claim 6** The door panel is composed of an outer panel and an inner panel. The inner panel has a service hole. The second trim member is fastened such that the front fastening portion is fastened to the edge portion on the front side of the service hole in the inner panel, and the rear fastening portion is fastened to the edge portion on the rear side of the service hole, and the door structure of the side door for a vehicle according to any one of claims 1 to 5.

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