JP5786725B2 - Sliding door structure - Google Patents

Description

  The present invention relates to a sliding door structure.

  In Patent Document 1, there is a guide rail that opens toward the outside of the vehicle on the outer surface of the rocker rail that forms the lower edge of the opening of the doorway that is opened and closed by the slide door, and that guides and moves the guide roller of the slide door inside. An automobile slide door structure is disclosed in which an installed guide groove is provided so that the lower end of the slide door covers the guide groove when the slide door is closed. In this sliding door structure, the upper edge of the guide groove opens when the sliding door is pushed into the passenger compartment due to a side collision of the automobile, etc. at the lower end of the door inner panel. A hook bead that engages with the sliding door is formed to prevent the sliding door from entering the vehicle interior (see Patent Document 1).

  Here, since the ratio from the center lock to the top and bottom of the door is generally large including the above-mentioned prior art documents, it is easy to rotate in the vehicle width direction with the center lock as a fulcrum. For this reason, when the slide door is closed, the slide door may be deformed or moved in the vehicle width direction due to the reaction force of the weather strip, etc., and there is room for improvement in the installation of the slide door when the slide door is closed. is there.

JP 2005-81853 A

  In view of the above fact, an object of the present invention is to improve the mountability of the sliding door when the sliding door is closed.

According to a first aspect of the present invention, there is provided a slide door that opens and closes a door opening provided on a side of the vehicle by moving in the vehicle front-rear direction, and is provided at an upper rear side of an edge of the door opening. An upper cushion rubber that is in contact with the upper rear side of the sliding door when the door is closed, and a lower rear side of the edge of the door opening. When the sliding door is closed, the upper cushion rubber contacts the lower rear side of the sliding door. A lower cushion rubber that is in contact with the lower cushion rubber, and is provided on the slide door, locks the slide door when the slide door is closed, and a distance from the lock position with respect to the vehicle vertical direction to the upper cushion rubber is L1, and the lock position with respect to the vehicle vertical direction. a locking mechanism a distance to the lower cushion rubber case of the L2, which is arranged so that L1 / L2 ≦ 1.8 from the previous Between the door outer panel constituting the outer plate of the sliding door at the rear end of the sliding door and the door inner panel constituting the inner plate of the sliding door, the vehicle vertical direction is disposed as the longitudinal direction, A rear reinforcement that extends upward along the rear end in the vehicle vertical direction and has an upper end extending forward in the vehicle longitudinal direction along the upper end of the sliding door, and the upper cushion rubber contacts The abutting surface at the upper rear side of the sliding door and the abutting surface at the lower rear side of the sliding door with which the lower cushion rubber abuts are connected in the vertical direction of the door by a wall surface without a step .

  In the first aspect of the invention, the position of the lock mechanism that locks the slide door when closed is the distance from the lock position in the vehicle vertical direction to the upper cushion rubber, and the distance from the lock position in the vehicle vertical direction to the lower cushion rubber. When L2 is L2, L1 / L2 ≦ 1.8.

  Thus, the ratio of the distance between the lock mechanism and the upper cushion rubber and the lower cushion rubber is reduced, and movement of the slide door on the outer side in the vehicle width direction with the lock mechanism as a rotation fulcrum when the slide door is closed is suppressed. Is done. Therefore, the installation property of the slide door at the time of closing improves.

Further, the rear reinforcement extends upper end in the longitudinal direction front side the vehicle along the upper end portion of the sliding door as well as extending upward along the rear end of the sliding door. Therefore, the rigidity of the rear end portion of the slide door is improved, and deformation of the slide door is suppressed.

In addition, a reaction force against the pressing force that presses the lower side of the slide door outward in the vehicle width direction due to the reaction force of the lower cushion rubber is secured, and as a result, the vehicle width direction on the upper side of the slide door using the lock mechanism as a rotation fulcrum The outward movement is suppressed.
According to another aspect of the invention, the abutment surface on which the lower cushion rubber abuts on the sliding door that is integrally coupled with the door opening seal face.

The invention of claim 3, the vehicle vertical direction between the door inner panel constituting the inner plate of the slide the door outer panel constituting the outer plate sliding de door of the door at the front end portion of the slide adjusting its longitudinal direction A front-side reinforcement that is disposed and extends upward along the front end portion of the slide door and has an upper end portion disposed near the upper end portion or the upper end portion of the slide door.

  In the invention of claim 3, the front side reinforcement extends upward along the front end portion of the slide door, and the upper end portion is disposed near the upper end portion or the upper end portion of the slide door. Therefore, the rigidity of the front end portion of the slide door is improved, and deformation of the slide door is suppressed.

  According to a fourth aspect of the present invention, an upper frame that supports an upper end portion of the slide door, a door frame that supports a peripheral portion of a door glass provided on the slide door, and the front reinforcement are joined and integrated. ing.

  In the invention of claim 4, since the upper frame, the door frame, and the front reinforcement are joined and integrated, the rigidity of the front end portion of the slide door is further improved, and the deformation of the slide door is further suppressed.

  According to the first aspect of the present invention, as compared with the case where the position of the lock mechanism is L1 / L2> 1.8, the vehicle width direction on the upper side of the slide door using the lock mechanism as the rotation fulcrum when the slide door is closed The outward movement can be suppressed, and as a result, the installation of the slide door at the time of closing is improved.

According to invention of Claim 2, the movement to the vehicle width direction outer side of the upper side of a slide door which makes the lock mechanism the rotation fulcrum at the time of closing of a slide door can be further suppressed.

  According to the third aspect of the present invention, the deformation of the sliding door can be suppressed as compared with a configuration in which the front side reinforcement does not extend upward along the front end portion of the sliding door.

  According to the fourth aspect of the present invention, the deformation of the slide door can be suppressed as compared with a configuration in which the upper frame, the door frame, and the front reinforcement are not joined and integrated.

A side view of a vehicle to which a sliding door structure according to an embodiment of the present invention is applied is shown, (A) is a side view showing a closed state in which the sliding door is closed, and (B) is a sliding door opened ( It is a side view which shows the state in the middle of being closed. It is a rear view at the time of seeing the slide door shown in FIG. 1 from the vehicle rear side. It is an enlarged side view at the time of seeing the vehicle rear direction rear side part of the sliding door shown in FIG. 1 from the vehicle width direction inner side. (A) is an enlarged side view when the lower part of the rear side in the vehicle front-rear direction of the sliding door shown in FIG. FIG. It is an enlarged side view which shows the vehicle rear direction rear part in the slide door shown in FIG. It is an enlarged side view which shows the vehicle front-back direction front side part in the slide door shown in FIG. It is the enlarged view to which the upper part of FIG. 6 was expanded. It is the enlarged view to which the upper part of FIG. 7 was expanded. It is a side view which shows the bead formed in the door inner panel of the slide door shown in FIG. The deformation | transformation of the vehicle width direction at the time of the closing of the sliding door of this embodiment and the deformation | transformation at the time of the closing of the vehicle width direction of the sliding door to which this invention is not shown are shown, (A) is the vehicle width direction of the upper end part of a sliding door. (B) is a graph showing the deformation in the vehicle width direction of the front end portion of the sliding door, and (C) is a side view schematically showing the sliding door. It is a graph which shows the relationship between L1 / L2 and a deformation | transformation of the rear-end part of a slide door.

  A sliding door structure according to an embodiment of the present invention will be described with reference to FIGS. In each figure, the vehicle up-down direction upper side is indicated by an arrow UP, the vehicle body front-rear direction front side is indicated by an arrow FR, and the vehicle width direction outer side is indicated by an arrow OUT.

  FIG. 1 shows a vehicle 10 provided with the sliding door structure 100 of the present embodiment. A side opening 12 of the vehicle 10 is provided with a door opening (occupant entrance / exit) 14 for a passenger to get on and off, and a sliding door that opens and closes the door opening 14 by moving in the vehicle front-rear direction. 102 is provided.

  1A shows a closed state where the slide door 102 is closed, and FIG. 1B shows a state where the slide door 102 is being opened (or closed).

  Although not shown, in this embodiment, an upper roller is disposed at the upper end 103 of the slide door 102 and a lower roller is disposed at the lower end 105. The upper roller is supported by an upper rail provided at the upper end portion of the side portion 12 of the vehicle 10 along the vehicle front direction, and the lower roller is provided at the lower end portion of the side portion 12 of the vehicle 10 along the vehicle front-rear direction. Supported by the lower rail, the slide door 102 can be slid in the vehicle front-rear direction.

  As shown in FIG. 1, a door glass 111 is provided on the upper side of the slide door 102. The peripheral edge of the door glass 111 is supported by an inverted U-shaped door frame 119. As shown in FIGS. 1 and 2, the sliding door 102 includes a door outer panel 110 that is disposed on the outer side in the vehicle body width direction and forms an outer plate, and an inner plate that is provided on the inner side in the vehicle width direction with respect to the door outer panel 110. And a door inner panel 120 (see FIG. 2). A door trim (not shown) is provided on the inner side (vehicle compartment side) of the door inner panel 120 in the vehicle width direction.

  As shown in FIG. 1, a weather strip 200 is attached to the outer edge portion 16 of the door opening 14 to seal a gap between the sliding door 102 and the outer edge portion on the inner side in the vehicle width direction.

  Further, an upper cushion rubber 250 is provided on the upper rear side of the outer edge portion 16 of the door opening 14. Further, a lower cushion rubber 260 is provided at the lower rear side of the outer edge 16 of the door opening 14 (see also FIG. 2). The upper cushion rubber 250 and the lower cushion rubber 260 are formed on the rear upper contact surface 262 and the lower rear contact surface 263 of the slide door 102 when the slide door 102 is closed as shown in FIG. 2), the impact when the door is closed is buffered.

  Note that the upper cushion rubber 250 and the lower cushion rubber 260 in the present embodiment have a cylindrical shape and are arranged with the vehicle width direction as the axial direction.

  As shown in FIGS. 1 and 2, the rear end portion 104 of the slide door 102 is provided with a lock mechanism 150 that locks the slide door 102 when the slide door 102 is closed (see FIG. 1A). . The lock mechanism 150 is provided between the upper cushion rubber 250 and the lower cushion rubber 260. As shown in FIGS. 1B and 2, the distance from the lock position to the upper cushion rubber 250 from the lock position in the vehicle vertical direction to the upper cushion rubber 250 is L1, and from the lock position to the lower cushion rubber 260 in the vehicle vertical direction. Is set and arranged so that L1 / L2 ≦ 1.8. In this embodiment, L1 / L2 = 1.76 is set.

  In other words, when the positions of the upper cushion rubber 250 and the lower cushion rubber 260 are the same as the conventional one, the lock mechanism 150 is disposed above the conventional one.

  As shown in FIG. 3, a flat surface 112 without a step is formed between the contact surface 263 and the contact surface 262 where the upper cushion rubber 250 and the lower cushion rubber 260 in the rear end portion 104 abut against the slide door 102. Has been.

  Further, as shown in FIG. 4, the abutting surface 262 with which the lower cushion rubber 260 abuts on the slide door 102 is coupled and integrated with the door opening seal surface 264.

  As shown in FIG. 5, a rear reinforcement 160 is provided at the rear end portion 104 of the slide door 102. The rear reinforcement 160 is disposed between the door outer panel 110 (see FIG. 2) and the door inner panel 120 with the vehicle vertical direction as the longitudinal direction, and the door frame 119 that supports the peripheral portion of the door glass 111. An extending portion 162 extending upward along the rear side portion 113 is provided, and an upper end portion 164 extends along the upper end portion 103 of the slide door 102 toward the front side in the vehicle front-rear direction.

  As shown in FIGS. 6 to 8, a front side reinforcement 170 is provided at the front end portion 106 of the slide door 102. The front reinforcement 170 is disposed between the door outer panel 110 (see FIG. 2) and the door inner panel 120 with the vehicle vertical direction as the longitudinal direction. An extension 172 is provided along the front side 118 (see FIGS. 7 and 8) of the door frame 119, and the upper end 174 (see FIGS. 7 and 8) of the extension 172 is the upper end of the slide door 102. It extends to the vicinity of the portion 103.

  As shown in FIG. 7, the extension 172 of the front reinforcement 170 is joined to the front side 118 of the door frame 119 by spot welding at four hit points D1.

  As shown in FIG. 8, the upper end portion 174 of the front side reinforcement 170 is joined and integrated with the front side portion 118 of the door frame 119 and the front end portion 178 of the upper frame 175 that supports the upper portion of the slide door 102. . The upper end portion 174 of the front reinforcement 170, the front side portion 118 of the door frame 119, and the front end portion 178 of the upper frame 175 are joined by spot welding at three points D2.

  Further, as shown in FIG. 9, a bead 180 is formed on the door inner panel 120 so as to go around the periphery of the door glass 111 and the outer periphery of the portion constituting the lower portion of the door glass 111. .

<Action and effect>
Next, the operation and effect of this embodiment will be described.

  When the slide door 102 is closed (see FIG. 1A), the reaction force of the weather strip 200 and the upper cushion rubber 250 causes the lock mechanism 150 to be a rotation fulcrum and the upper end portion 103 (particularly in FIG. 10). The third corner C) shown moves (rotates) outward in the vehicle width direction.

  However, when the distance between the lock mechanism 150 and the upper cushion rubber 250 in the vehicle vertical direction is L1, and the distance between the lower cushion rubber 260 is L2, L1 / L2 = 1.76 (L1 / L2 ≦ 1.8). The locking mechanism 150 is arranged so that Therefore, the amount of movement of the third corner portion C (see FIG. 10) of the upper end portion 103 of the slide door 102 to the outside in the vehicle width direction is suppressed within 2.0 mm. The details of the relationship between L1 / L2 and the amount of movement of the corner portion C will be described later.

  Further, as shown in FIG. 5, the rear reinforcement 160 is disposed between the door outer panel 110 (see FIG. 2) and the door inner panel 120 with the vehicle vertical direction as the longitudinal direction, and the door glass 111 An extension portion 162 extending upward along the rear side portion 113 of the door frame 119 is provided, and an upper end portion 164 extends along the upper end portion 103 of the slide door 102 to the front side in the vehicle front-rear direction.

  Therefore, for example, compared to the configuration in which the rear reinforcement 160 extends only to the middle portion (Y1 in FIG. 5) of the rear side portion 113 of the door frame 119, the torsional rigidity of the rear end portion 104 of the sliding door 102 is increased. improves.

  Further, as shown in FIG. 3, there is no step between the contact surface 263 and the contact surface 262 where the upper cushion rubber 250 and the lower cushion rubber 260 in the rear end portion 104 abut against the slide door 102. Is formed. Therefore, the rigidity, particularly torsional rigidity, of the rear end portion 104 of the slide door 102 is improved as compared with a configuration having a step.

  And, by improving the rigidity of the rear end portion 104 of the slide door 102, a reaction force against a pressing force pressing the lower side of the slide door 102 outward in the vehicle width direction due to the reaction force of the lower cushion rubber 260 is secured ( As a result, the movement of the upper end portion 103 of the slide door 102 with the lock mechanism 150 as a rotation fulcrum to the outside in the vehicle width direction is more reliably suppressed.

  Further, in the present embodiment, as shown in FIG. 4, the contact surface 262 with which the lower cushion rubber 260 contacts the slide door 102 is combined and integrated with the door opening seal surface 264.

  Therefore, the surface rigidity of the contact surface 262 against which the lower cushion rubber 260 hits is improved, and it is difficult to break. Therefore, the reaction force against the pressing force that the lower cushion rubber 260 pushes the lower side of the slide door 102 outward in the vehicle width direction is further increased. As a result, the lock mechanism 150 serves as a rotation fulcrum and the upper end portion 103 of the slide door 102 Movement to the outside in the vehicle width direction is further suppressed.

  Further, as shown in FIGS. 6 and 7, the front reinforcement 170 is provided with an extension 172 along the front side 118 of the door frame 119 that supports the peripheral part of the door glass 111, and the upper end of the extension 172. 174 (see FIGS. 7 and 8) extends to the vicinity of the upper end 103 of the slide door 102. And as shown in FIG. 7, the extension part 172 of the front side reinforcement 170 is joined by the spot welding of the front end part 178 and the four hit points D1. As a result, the rigidity of the front end portion 106 of the slide door 102 and the rigidity of the front side portion 118 of the door frame 119 are improved. Further, by causing the door frame 119 to function as a rigid component, the rigidity of the front end portion 106 of the slide door 102 is improved without increasing the number of components.

  Further, as shown in FIG. 8, the upper end portion 174 of the front reinforcement 170 is joined and integrated with the front end portion 178 of the door frame and the front end portion 178 of the upper frame 175 that supports the upper portion of the slide door 102. Therefore, the rigidity of the front end portion 106 of the slide door 102 is further improved.

  Further, as shown in FIG. 9, the bead 180 is formed on the door inner panel 120 so as to go around the outer shape, thereby improving the rigidity of the entire slide door 102.

  Here, FIG. 10 is a graph for comparing the deformation in the vehicle width direction of the slide door 102 of the present embodiment at the time of closing and the deformation in the vehicle width direction of the slide door to which the present invention is not applied at the time of closing. is there.

  10A is a graph showing the deformation of the upper end portion 103 in the vehicle width direction. In addition, the horizontal axis of (A) indicates the position of the slide door in the vehicle front-rear direction, and the vertical axis indicates the vehicle width direction. (B) is a graph showing the deformation of the front end portion 106 in the vehicle width direction. The vertical axis of (B) indicates the position of the sliding door in the vehicle vertical direction, and the horizontal axis indicates the amount of deformation in the vehicle width direction. In each graph, the deformation of the sliding door 102 in the vehicle width direction is indicated by a solid line SD1, and the deformation of the sliding door in the vehicle width direction to which the present invention is not applied is indicated by a one-dot broken line SD2.

  As can be seen from these graphs, the amount of deformation of the sliding door 102 in the vehicle width direction is smaller than the amount of deformation of the sliding door to which the present invention is not applied. In other words, by applying the present invention, it is possible to suppress the movement and deformation of the sliding door at the time of closing, and as a result, the mountability of the sliding door 102 is improved.

  In addition, wind noise due to the gap caused by the deformation of the slide door is reduced, and the impact sound of the upper cushion rubber 250 and the lower cushion rubber 260 is reduced when closed, thereby improving the NV performance.

  Next, when the distance between the lock mechanism 150 and the upper cushion rubber 250 in the vehicle vertical direction is L1 and the distance between the lower cushion rubber 260 in the vehicle vertical direction is L2 in the closed state of the slide door 102, L1 / By setting L2 ≦ 1.8, the amount of movement of the upper end portion 103 of the sliding door 102 to the outside of the third corner portion C (see FIG. 10) can be suppressed within 2.0 mm. This will be described with reference to 11 graphs.

  FIG. 11 shows the deformation of the rear end 104 (see FIG. 10) of the sliding door when L1 / L2 is the following values. The vertical axis indicates the position of the slide door in the vehicle vertical direction, and the horizontal axis indicates the amount of deformation in the vehicle width direction.

A: L1 / L2 = 1.76 (setting of this embodiment)
B: L1 / L2 = 1.00
C: L1 / L2 = 1.80
D: L1 / L2 = 2.20
E: L1 / L2 = 1.10
F: L1 / L2 = 2.00
G: L1 / L2 = 1.85

  As can be seen from this graph, the movement amount of the C portion is 2.0 mm or less in the case of A, B, C, E, and the movement amount of the C portion is less than 2.0 mm in the case of D, F, G. growing. In other words, by setting L1 / L2 ≦ 1.8, the movement amount of the third corner portion C (see FIG. 10) of the upper end portion 103 of the sliding door 102 to the outside in the vehicle width direction is within 2.0 mm. It can be seen that it can be suppressed.

  In addition, if the moving amount of the corner part C is 2.0 mm or less, it has been confirmed that the correction of the installation property is substantially eliminated in the production line. In other words, it has been confirmed that if the amount of movement of the corner portion C is 2.0 mm or less, the slide door can be easily installed when closed.

  The present invention is not limited to the above embodiment. Needless to say, various embodiments can be implemented without departing from the scope of the present invention.

12 side (vehicle side)
DESCRIPTION OF SYMBOLS 14 Door opening part 100 Sliding door structure 102 Sliding door 103 Upper end part 104 Rear end part 105 Lower end part 106 Front end part 110 Door outer panel 111 Door glass 119 Door frame 120 Door inner panel 150 Lock mechanism 160 Rear side reinforcement 170 Front side reinforcement 175 Upper frame 250 Upper cushion rubber 260 Lower cushion rubber

Claims (4)

A sliding door that opens and closes a door opening provided on the side of the vehicle by moving in the vehicle longitudinal direction;
An upper cushion rubber provided at the upper rear side of the edge of the door opening, and abutting the upper rear side of the sliding door when the sliding door is closed;
A lower cushion rubber that is provided at the lower rear side of the edge of the door opening, and abuts against the lower rear side of the sliding door when the sliding door is closed;
The sliding door is provided at the sliding door, locks the sliding door when the sliding door is closed, and the distance from the locking position in the vehicle vertical direction to the upper cushion rubber is L1, and from the locking position in the vehicle vertical direction to the lower cushion rubber. When the distance of L2 is L2, the lock mechanism is arranged so that L1 / L2 ≦ 1.8,
Between the door outer panel constituting the outer plate of the sliding door at the rear end portion of the sliding door and the door inner panel constituting the inner plate of the sliding door, the vehicle vertical direction is disposed as the longitudinal direction, and the sliding door A rear reinforcement that extends upward in the vehicle vertical direction along the rear end of the vehicle and that has an upper end extending forward in the vehicle longitudinal direction along the upper end of the slide door;
Equipped with a,
The contact surface of the upper rear side of the slide door that the upper cushion rubber contacts and the contact surface of the lower rear side of the slide door that the lower cushion rubber contacts are in the vertical direction of the door with a wall surface without a step. Linked sliding door structure. It said abutment surface on which the lower cushion rubber in sliding door abuts, the sliding door structure according to claim 1 is combined with the door opening seal face that is integrated. Between the door outer panel constituting the outer plate of the sliding door at the front end of the sliding door and the door inner panel constituting the inner plate of the sliding door , the vehicle vertical direction is disposed as the longitudinal direction, 3. The slide door structure according to claim 1, further comprising a front side reinforcement that extends upward along the front end portion and has an upper end portion disposed at or near the upper end portion of the slide door.   The upper frame that supports the upper end portion of the slide door, the door frame that supports the peripheral portion of the door glass provided on the slide door, and the front reinforcement are joined and integrated. Sliding door structure.