JP2011037354A - Door structure for vehicle - Google Patents

Abstract

An object of the present invention is to improve the closing property of a door while suppressing an increase in an operation load when the door is opened.
In the vehicle door structure, when the side door is closed, the door latch device attached to the side door is engaged with the vehicle body side, and after entering the half latch state, the full latch state is achieved. Here, at least between the half latch state and the full latch state, the side door 14 is urged in the opening direction by the urging means (door latch device, door sash, and weatherstrip). The provided inclined surface 70 applies a rotational force in the closing direction to the side door 14 via the pair of shoes 60. Therefore, since the side door 14 is assisted in the closing direction by the rotational force in the closing direction, the closing performance of the side door 14 is improved.
[Selection] Figure 5

Description

  The present invention relates to a vehicle door structure including a check lever for increasing or decreasing an opening / closing operation load of a vehicle door.

  In the vehicle door check device disclosed in Patent Document 1, the check arm (check lever) includes a first check pattern for opening the door and a second check pattern for closing the door. The first check pattern includes a first gentle slope with a gentle slope. When the occupant starts to open the door, the check ball rolls on the first gentle slope. Thereby, the operation load at the time of door opening is made low. On the other hand, the second check pattern has a steep fourth steep slope, and the check ball descends on the fourth steep slope when approaching the end of closing the side door. Thereby, the assisting force when the side door is fully closed is obtained.

JP 2000-203262 A

  By the way, when closing a door for a vehicle, the door receives a large reaction force (biasing force in the opening direction) from a door latch device or the like. Therefore, in order to close the door smoothly, an inertial force against the reaction force is applied. Need to act on the door. However, when a lightweight door made of aluminum or the like is adopted, the inertial force of the door is reduced, and the closing performance of the door is deteriorated. In this regard, in the door check device described above, an assisting force can be obtained when the door is fully closed, but there is room for improvement in order to improve the closing performance of the lightweight door. In addition, it is necessary to prevent the operation load when opening the door from being unnecessarily increased by measures for improving the closing performance of the door.

  The present invention has been made in consideration of the above-described facts, and an object of the present invention is to obtain a vehicle door structure that can improve the closing performance of the door while suppressing an increase in the operation load when the door is opened.

  According to a first aspect of the present invention, there is provided a vehicle door structure which is attached to one of a door connected to a vehicle body and a vehicle body, and engages with a striker attached to the other when the door is closed, A door latch device that is in a fully latched state that holds the door in a fully closed state after passing through a half latched state that holds the door in a half open state, and biases the door in an opening direction at least between the half latched state and the fully latched state Biasing means, a check lever having one end connected to the vehicle body, a movable body attached to the door and biased in a contact direction with the check lever, and the opening and closing of the door A moving body urging mechanism that increases or decreases the door opening / closing operation load when the moving body is moved, and the check lever is moved forward from the half-latch state. In the range up to the fully-latched state, the inclined surface which imparts the closing force to the door through the moving body is characterized by being provided.

  In the vehicle door structure according to the first aspect, the moving body of the moving body urging mechanism attached to the door is urged in the contact direction with the check lever, and the moving body is opened and closed as the door is opened and closed. Moved. Thereby, the door opening / closing operation load is increased or decreased. Further, when the door is closed, the door latch device attached to either the door or the vehicle body engages with the striker attached to the other, and after entering the half latch state, the full latch state is obtained. Here, in this vehicle door structure, at least between the half latch state and the full latch state, the door is urged in the opening direction by the urging means (for example, a door latch device, a weather strip, etc.). An inclined surface provided on the check lever applies a closing force to the door via the moving body. Therefore, since the door can be assisted in the closing direction by the force in the closing direction, the closing property of the door can be improved. Further, when the door is opened, that is, when the door latch device is released from the fully latched state, the door is urged in the opening direction by the urging means, thereby suppressing an increase in the operation load when the door is opened. it can.

  As described above, in the vehicle door structure according to the present invention, the closing property of the door can be improved while suppressing an increase in the operation load when the door is opened.

1 is a schematic side view showing a configuration of a part of an automobile configured by applying a vehicle door structure according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic front view which shows the structure of the principal part of the door latch apparatus which concerns on embodiment of this invention, (A) shows the state arrange | positioned in the unlatch position, (B) shows the latch in the half latch position. (C) shows a state in which the latch is arranged at the full latch position. FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. It is a schematic longitudinal cross-sectional view which shows the structure of the door check apparatus which concerns on embodiment of this invention, and is a figure when a side door is a full open state. FIG. 5 is a longitudinal sectional view corresponding to FIG. 4, and is a view when the door latch device is between a half latch state and a full latch state.

  Hereinafter, with reference to FIGS. 1-5, the vehicle door structure which concerns on embodiment of this invention is demonstrated. In each figure, the arrow FR indicates the vehicle body front direction, the arrow UP indicates the vehicle body upward direction, and the arrow IN indicates the vehicle width inner side direction.

  FIG. 1 is a schematic side view showing a part of an automobile 12 configured by applying a vehicle door structure 10 according to an embodiment of the present invention. As shown in this figure, the automobile 12 includes a side door 14. The side door 14 is made of aluminum and is lighter than a side door made of steel plate. The side door 14 is pivotally connected to an A-pillar 18A of the vehicle body 18 via a pair of upper and lower hinges 16 at the front end, and has a passenger opening / closing door opening 20 formed on the side of the vehicle body 18. It can be opened and closed. The side door 14 is engaged with a U-shaped (or U-shaped) striker 22 fixed to the B pillar 18B of the vehicle body 18 and a door latch device 24 provided at the rear end of the side door 14. By doing so, it is held in a fully closed state or a half open state (so-called half door state).

  The door latch device 24 includes a base 26 fixed to the side door 14. As shown in FIGS. 2A to 2C, a latch 30 is supported on the base 26 via a support shaft 28. The latch 30 is rotatable relative to the base 26 around the support shaft 28 between the unlatched position shown in FIG. 2A and the full latched position shown in FIG. 2C. The latch urging spring is not urged to the unlatched position shown in FIG. Further, a half latch position shown in FIG. 2B is set between the unlatch position and the full latch position.

  The latch 30 is provided with an engaging recess 30A for restraining the striker 22, and the first claw portion 30B and the second claw portion 30C are provided on both sides in the circumferential direction across the engaging recess 30A. Is provided.

  A pole 34 is supported on the base 26 via a support shaft 32. The pole 34 is between a locked position indicated by a solid line in FIGS. 2 (A) to 2 (C) and an unlocked position indicated by a two-dot chain line in FIGS. 2 (A) to 2 (C). The base 26 is rotatable relative to the periphery of the support shaft 32, and is biased to a lock position by a pole biasing spring (not shown). A door outside handle 36 (see FIG. 1) provided on the side door 14 and a door inside handle (not shown) are indirectly connected to the pole 34, and the pole 34 is operated by operating these handles. Is rotated to the unlock position.

  Here, in a state where the side door 14 is opened, the latch 30 is held at the unlatched position shown in FIG. 2A by the biasing force of the latch biasing spring. When the side door 14 is closed, as shown in FIG. 2A, the first claw portion 30B of the latch 30 hits the striker 22, and the latch 30 is rotated to the half latch position side by the striker 22. The At this time, the pole 34 is pushed down to the unlock position side when the tip of the first claw portion 30B hits the pole 34.

  When the latch 30 reaches the half latch position, the pole 34 is rotated to the lock position by the biasing force of the pole biasing spring, and is hooked on the first claw portion 30B as shown in FIG. Thereby, the rotation of the latch 30 to the unlatch position side is restricted, and the striker 22 is fitted into the engaging recess 30A of the latch 30 and restrained. The latch state at this time is referred to as a half latch state, and the side door 14 is in a half-open state (half-door state).

  When the side door 14 further rotates in the closing direction, the latch 30 is rotated to the full latch position side by the striker 22. At this time, the pole 34 is pushed down to the unlock position side when the tip of the second claw portion 30C hits the pole 34. When the latch 30 reaches the full latch position, the pole 34 is rotated to the lock position by the biasing force of the pole biasing spring, and is hooked on the second claw portion 30C as shown in FIG. Thereby, the rotation of the latch 30 to the half latch position side is restricted. The state of the latch 30 at this time is referred to as a full latch state, and the side door 14 is fully closed.

  When the door outside handle 36 or the door inside handle of the side door 14 is operated in the half latch state or the full latch state described above, the pole 34 is rotated to the unlock position, and the first claw portion 30B or The hooked state of the pole 34 with respect to the two claw portions 30C is released. As a result, the latch 30 is rotated to the unlatched position by the biasing force of the latch biasing spring, and the restraint of the striker 22 by the latch 30 is released. Thereby, the side door 14 can be opened.

  In the present embodiment, when the side door 14 is closed, as described above, the latch 30 hits the striker 22 and is rotated from the unlatched position to the full latch position side. At this time, the side is driven by the biasing force of the latch biasing spring. The door 14 receives a reaction force in the opening direction (hereinafter, this reaction force is referred to as “latch reaction force”).

  Further, when the side door 14 is closed, the upper portion of the door sash (not shown) is brought down to the passenger compartment side, and the side door 14 receives a reaction force from the door sash until the fall-down reaches a predetermined position. (Hereafter, this reaction force is called "Sash reaction force").

  Further, a rubber weather strip (not shown) that seals between the side door 14 and the vehicle body 18 is attached to the periphery of the door opening 20 of the vehicle body 18, and when the side door 14 is closed, The weather strip is elastically deformed between the side door 14 and the vehicle body 18 so that the side door 14 receives a reaction force in the opening direction (hereinafter, this reaction force is referred to as “weather strip reaction force”).

  That is, in the present embodiment, the side door 14 is biased in the opening direction by the door latch device 24, the door sash, and the weather strip (all biasing means) at least between the half latch state and the full latch state. It has become.

  The weatherstrip reaction force gradually increases after the front portion of the side door 14 contacts the weatherstrip, but the latch reaction force and the sash reaction force are required until the latch 30 changes from the half latch state to the full latch state. It increases rapidly in the meantime and reaches a maximum of several tens of kgf. That is, when the occupant slowly closes the side door 14, such a force is required. Usually, the occupant rotates the side door 14 in the closing direction so that the side door 14 obtains an inertial force. This resists the reaction force (door closing load).

  On the other hand, as shown in FIG. 3, a door check device 38 is provided on the front end side (door hinge 16 side) of the side door 14. The door check device 38 limits the opening / closing angle of the side door 14 to a predetermined angle range, and also gives a moderation feeling to the opening / closing operation of the side door 14, and is connected to the A pillar 18A of the vehicle body 18. A long check lever 40 and a door check case Assy 44 (moving body biasing mechanism) disposed in the internal space 42 of the side door 14 are provided.

  The door check case Assy 44 has a door check case 46 attached to the front wall 14 </ b> A of the side door 14. As shown in FIGS. 4 and 5, the door check case 46 is formed in a box shape having an opening on the front wall 14A side, and flange portions 46A provided on both upper and lower sides are fastened to the front wall 14A with screws. . The front wall 14 </ b> A and the door check case 46 are formed with rectangular through holes 50 and 52 that face each other, and an intermediate portion in the longitudinal direction of the check lever 40 is inserted into the through holes 50 and 52. ing.

  The check lever 40 is formed by overlapping and joining a pair of long steel plates, and one end portion in the longitudinal direction is rotatably connected to a mounting bracket 56 on the vehicle body 18 side via a pin 54. ing. The mounting bracket 56 is fixed to the A pillar 18A of the vehicle body 18.

  The other end in the longitudinal direction of the check lever 40 protrudes into the internal space 42 of the side door 14, and a stopper 58 is attached to the other end in the longitudinal direction. The stopper 58 comes into contact with the door check case 46 when the side door 14 is largely opened (the state shown in FIG. 4). Thereby, rotation to the opening direction of the side door 14 is restrict | limited, and the side door 14 is hold | maintained at a full open state.

  A middle portion in the longitudinal direction of the check lever 40 passes through the inside of the door check case 46. Inside the door check case 46, a pair of upper and lower shoes 60 (moving bodies) that are in contact with the upper and lower surfaces of the check lever 40 are accommodated. These shoes 60 have a chevron-shaped surface that comes into contact with the check lever 40, and are pressed and urged in a contact direction with the check lever 40 by a pair of cushion rubbers 62 accommodated in the door check case 46. Yes. As a result, the intermediate portion in the longitudinal direction of the check lever 40 is sandwiched by the pair of shoes 60, and these shoes 60 slide on the upper and lower surfaces of the intermediate portion in the longitudinal direction of the check lever 40 as the side door 14 is opened and closed. It is supposed to be.

  In addition, a first bulging portion 40A and a second bulging portion 40B that bulge in the vehicle body vertical direction are provided in the middle portion of the check lever 40 in the longitudinal direction. The first bulging portion 40A is disposed on one end side (the vehicle body 18 side) in the longitudinal direction of the check lever 40, and the second bulging portion 40B is disposed on the other longitudinal end side of the check lever 40. In addition, a recess 40C is provided in the vicinity of the central portion in the longitudinal direction of the check lever 40 between the first bulging portion 40A and the second bulging portion 40B.

  Here, when the pair of shoes 60 slides with the first bulging portion 40A and the second bulging portion 40B, the pair of shoes 60 are moved away from each other, and the cushion rubber 62 is compressed. . Thereby, the sliding resistance between the pair of shoes 60 and the check lever 40 is increased, and the opening / closing operation load of the side door 14 is increased. On the other hand, when the pair of shoes 60 slides with the recess 40C, the pair of shoes 60 moves in a direction in which they approach each other, and the cushion rubber 62 is elastically restored. Thereby, the sliding resistance between a pair of shoes 60 and the check lever 40 becomes small, and the opening / closing operation load of the side door 14 decreases. Thereby, a sense of moderation is given to the opening / closing operation of the side door 14, and unnecessary rotation of the side door 14 is suppressed.

  Specifically, when the side door 14 is in the fully open state, as shown in FIG. 4, the pair of shoes 60 are inclined to the pair of second bulging portions 40 </ b> B on the other end side in the longitudinal direction of the check lever 40. Abuts on surface 64. In this state, the pair of shoes 60 is pressed against the pair of inclined surfaces 64 by the urging force of the pair of cushion rubbers 62 and receives a reaction force from each inclined surface 64. Thereby, the rotational force (reaction force) in the opening direction is applied to the side door 14 through the pair of shoes 60 (the side door 14 is urged in the opening direction through the pair of shoes 60). Thereby, unnecessary rotation of the side door 14 in the closing direction is suppressed, and the side door 14 is held in a fully opened state.

  Further, when the side door 14 is in an appropriate opening state between the fully open state and the fully closed state (a predetermined opening state in which an occupant can easily get on and off the automobile 12), the pair of shoes 60 abut on the recess 40C. In this state, unnecessary sliding of the pair of shoes 60 is suppressed by the first bulging portion 40A and the second bulging portion 40B, and the side door 14 is appropriately maintained in the opening state.

  Furthermore, in the present embodiment, the check lever 40 is provided with the first bulging portion 40A, so that a pair of upper and lower inclined surfaces 70 are provided at one end in the longitudinal direction of the check lever 40 (the end on the side connected to the vehicle body 18). Is provided. When the side door 14 is in the range from the half open state to the fully closed state, that is, when the door latch device 24 is in the range from the half latch state to the full latch state, as shown in FIG. Abut against the pair of shoes 60. In this state, the pair of shoes 60 is pressed against the pair of inclined surfaces 70 by the urging force of the pair of cushion rubbers 62 and receives a reaction force from each inclined surface 70. Thereby, a rotational force (reaction force) in the closing direction is applied to the side door 14 via the pair of shoes 60 (the side door 14 is urged in the closing direction via the pair of shoes 60). In the present embodiment, the length L (see FIG. 4) of the inclined surface 70 along the longitudinal direction of the check lever 40 is set to about 10 mm, and the inclination angle θ of the inclined surface 70 is 20 degrees. Is set to about.

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

  In the vehicle door structure 10 having the above-described configuration, when the side door 14 is closed, the door latch device 24 attached to the side door 14 engages with the striker 22 on the vehicle body 18 side, and after passing through the half latch state, the full latch state. It becomes. Here, at least between the half latch state and the full latch state, the side door 14 is biased in the opening direction by the biasing means (the door latch device 24, the door sash, and the weather strip). The inclined surface 70 provided on the side applies a rotational force (reaction force) in the closing direction to the side door 14 via the pair of shoes 60. Therefore, since the side door 14 is assisted in the closing direction by the rotational force in the closing direction, the closing property of the side door 14 is improved.

  That is, in the door structure 10 for a vehicle, since the side door 14 is made of aluminum and is lightened, the inertial force that acts on the side door 14 when the occupant closes the side door 14 is a side plate made of a general steel plate. Smaller than the door. In this respect, since the side door 14 is assisted in the closing direction by the inclined surface 70 as described above, the decrease in the inertial force of the side door 14 is compensated, and the closing performance of the side door 14 is improved.

  Moreover, in the vehicle door structure 10, the inclined surface 70 of the check lever 40 is provided so as to abut on the pair of shoes 60 in the range from the half latched state to the fully latched state. L is set as short as about 10 mm. Thereby, since the inclination angle θ of the inclined surface 70 is set to a large value of about 20 degrees, the urging force in the closing direction applied to the side door 14 by the inclined surface 70 is increased. Therefore, the closing property of the side door 14 is improved.

  On the other hand, for example, when an occupant in the automobile 12 operates the door inside handle to open the side door 14, the latch 30 of the door latch device 24 is released from the rotation restriction by the pole 34, and the latch urging spring is attached. It is rotated to the unlatched position by the force. At this time, the side door 14 is urged in the opening direction by a reaction force that the latch 30 receives from the striker 22. Further, at this time, the weather strip and the door sash also urge the side door 14 in the opening direction. Since these urging forces are larger than the rotational force in the closing direction applied to the side door 14 by the inclined surface 70 of the check lever 40, the operation load when the occupant opens the side door 14 may increase unnecessarily. Absent.

  As described above, in the vehicle door structure 10 according to the present embodiment, it is possible to improve the closing performance of the side door 14 while suppressing an increase in the operation load when the side door 14 is opened.

  In the above embodiment, the length L of the inclined surface 70 is about 10 mm and the inclination angle θ of the inclined surface 70 is set to about 20 degrees. However, the present invention is not limited to this. The length L and the inclination angle θ of the inclined surface 70 are different depending on the vehicle type, and the magnitude of two forces, that is, a force required when the occupant closes the side door and a force required when the side door is opened from the vehicle interior. It may be set as appropriate based on the above.

  In addition, the check lever 40 according to the above-described embodiment has a configuration formed by overlapping and joining a pair of steel plates. However, the present invention is not limited thereto, and the check lever material and manufacturing method are appropriately changed. can do.

  In the above embodiment, the pair of shoes 60 of the door check case Assy 44 are in direct contact with the check lever 40. However, the present invention is not limited to this, and the configuration of the door check case Assy 44 can be changed as appropriate. it can. For example, a configuration may be adopted in which a check ball (sphere) is rotatably held by a pair of shoes 60 and the check ball is brought into contact with the check lever 40.

  Moreover, although the said embodiment demonstrated the case where the vehicle door structure which concerns on this invention was applied with respect to the side door 14 (front side door) of the motor vehicle 12, this invention is not restricted to this but this invention. Such a vehicle door structure can be applied to a rear side door, a rear door, and the like of an automobile.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. Needless to say, the scope of rights of the present invention is not limited to the above embodiment.

10 Vehicle door structure 12 Automobile (vehicle)
14 Side door (door)
18 body 22 striker 24 door latch device (biasing means)
40 Check lever 44 Door check case Assy (moving body biasing mechanism)
60 moving body 70 inclined surface

Claims (1)

The door is attached to either the door connected to the vehicle body or the vehicle body, engages with a striker attached to the other when the door is closed, and after passing through a half latch state that holds the door in a half-open state, the door is opened. A door latch device that is in a fully latched state to be held in a fully closed state;
Biasing means for biasing the door in the opening direction at least between the half-latch state and the full-latch state;
A check lever whose one end is connected to the vehicle body;
A moving body attached to the door and biased in a contact direction with the check lever, and increasing / decreasing an opening / closing operation load of the door by moving the moving body as the door is opened / closed. A moving body biasing mechanism;
And having
The vehicle door characterized in that the check lever is provided with an inclined surface that applies a force in the closing direction to the door through the movable body in a range from the half latch state to the full latch state. Construction.

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