JP4905398B2 - Door position control device - Google Patents

Description

  The present invention relates to a door position regulating device for regulating the opening position of a hinged door provided on a vehicle such as an automobile.

  A hinge-type door device provided in an automobile includes a door checker for restricting the opening position of the door. A typical door checker includes an arm portion that is swingably attached to a vehicle body, and a deterrent mechanism provided on the door. The arm portion is inserted into the suppression mechanism, and the arm portion moves relative to the suppression mechanism when the door is opened and closed. Then, when the door is opened, the arm portion is restrained by the restraining mechanism, so that the door can be stopped at the fully open position or between the fully open position and the fully closed position. However, a general door checker cannot stop the door steplessly at a desired opening angle.

  Therefore, a door position regulating device has been proposed in order to be able to stop the door at a desired opening angle. For example, as disclosed in Patent Document 1 below, a door device including a pulley, a belt-like member wound around the pulley, and a lock mechanism for locking the rotation of the pulley has been proposed. In this door device, when the door moves in the opening direction, the pulley rotates via the belt-like member. Therefore, the door is prevented from further opening by preventing the pulley from rotating by the lock mechanism.

Further, as disclosed in Patent Document 2 below, a door opening operation restriction using a wire connected to an arm portion of a door checker, a pulley for winding the wire, and an electromagnetic clutch for suppressing rotation of the pulley. Devices have also been proposed. In this opening operation regulating device, when the door is opened, the pulley is rotated by pulling the wire by the arm portion of the door checker. And the movement of the door in the opening direction is restricted by suppressing the rotational movement of the pulley by the electromagnetic clutch.
Japanese Utility Model Publication No. 63-185723 JP 2007-321365 A

  As described in Patent Documents 1 and 2, the door position regulating device using a belt-like member or wire wound around a pulley rotates the pulley via the belt-like member or wire when the door moves in the opening direction. be able to. However, the belt-like member and the wire rope cannot transmit a load in the compression direction. That is, when the door is closed, the belt-like member and the wire rope are bent, and the pulley cannot be rotated.

  For this reason, the movement of the door in the opening direction can be restricted, but the movement in the closing direction cannot be restricted. For example, when the door is locked between the fully closed position and the fully open position, the door easily moves in the closing direction from that position. This causes the operator to feel uneasy about whether the door is really locked.

  Accordingly, an object of the present invention is to provide a door position restricting device capable of suppressing not only the opening direction but also the movement in the closing direction when opening and closing the door.

  According to a first aspect of the present invention, there is provided a door position restricting device comprising: a door attached to a door attachment portion of a vehicle body by a hinge so as to be freely opened and closed; The pulley is rotatable, and one end is connected to a member on the vehicle body side, the other end is wound around the pulley, and the pulley is pulled by the member on the vehicle body side when the door moves in the opening direction. A tension transmission member (for example, a rope body such as a wire rope) that rotates in a first direction, one end is connected to the vehicle body side member, the other end extends in the direction of the pulley, and can transmit a compression load. A compression force transmission member (for example, a rigid member such as a rod) that rotates the pulley in the second direction by being pushed by the vehicle body side member when the door moves in the closing direction; 1 It has and a suppressing braking mechanism from rotating in a direction and said second direction.

  According to a second aspect of the present invention, there is provided a door position restricting device comprising: a door attached to a door attachment portion of a vehicle body by a hinge so as to be openable and closable; The pulley is rotatable, and one end is connected to a member on the vehicle body side, the other end is wound around the pulley, and the pulley is pulled by the member on the vehicle body side when the door moves in the opening direction. A first cable body that rotates in a first direction and a reciprocating movement that is disposed on the opposite side of the pulley from the vehicle body and is movable in a direction approaching the pulley and a direction away from the pulley. A body, one end is connected to the vehicle body side member, the other end is connected to the reciprocating body, and the door is pushed by the vehicle body side member when the door moves in the closing direction. The pulley A rod member that moves in a separating direction, one end is connected to the reciprocating body, the other end is wound around the pulley in a direction opposite to the first cable body, and the door moves in the closing direction A second rope that rotates the pulley in the second direction; and a braking mechanism that prevents the pulley from rotating in the first direction and the second direction.

  In one embodiment of the present invention, the vehicle body side member is an arm portion of a door checker, one end of the arm portion is swingably attached to the vehicle body, and the first cable is connected to the other end of the arm portion. One end of the body and one end of the rod member are connected. For example, the first cable body and the second cable body extend in opposite directions with the pulley interposed therebetween, and the rod member extends along the first cable body and the second cable body. ing. Further, a force transmission member capable of transmitting tension and compression force and having flexibility may be provided between the vehicle body side member and the rod member.

  According to the present invention, when the door moves in the opening direction, the pulley is rotated in the first direction by pulling the tension transmitting member such as the rope. When the door moves in the closing direction, the pulley is rotated in the second direction by pressing a compression force transmitting member such as a rod member. Since the rotation of the pulley is suppressed by the braking mechanism, it is possible to brake in both the opening and closing directions of the door.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a part of an automobile 10. A door device 13 having a hinged door 12 is provided on the side of the vehicle body 11 of the automobile 10. The door 12 is supported on the vehicle body 11 by hinges 15 and 16 provided on the door attachment portion 14 of the vehicle body 11 and can be opened and closed between a fully open position and a fully closed position.

  The door device 13 includes a door checker 20. As shown in FIG. 2, the door checker 20 includes a base member 21, an arm member 22, and a stopper unit 23. The base member 21 is fixed to the front pillar of the vehicle body 11. The arm member 22 can turn in the horizontal direction around a shaft 24 provided on the base member 21. The arm member 22 attached to the base member 21 is an example of a member on the vehicle body side. The stopper unit 23 includes a lock case 25 fixed to the front frame of the door 12, an engagement member 26 built in the lock case 25, and the like. The arm member 22 is inserted into a hole 27 formed in the lock case 25 so as to be movable in a substantially horizontal direction.

  When the door 12 moves in the opening direction, the arm member 22 of the door checker 20 moves in the direction of exiting from the inside of the door 12 (the direction indicated by the arrow A1 in FIG. 2). When the door 12 moves in the closing direction, the arm member 22 moves in the direction entering the inside of the door 12 (the direction indicated by the arrow A2 in FIG. 2).

  In the middle of the arm member 22 in the length direction, a first recess 31 and a second recess 32 are formed. A stopper 33 is provided at the tip of the arm member 22. When the door 12 moves to the fully open position, the stopper 33 of the arm member 22 abuts against the lock case 25 and the engaging member 26 enters the first recess 31, whereby the door 12 is held at the fully open position. When the door 12 opens to the intermediate position, the engagement member 26 enters the second recess 32, whereby the door 12 is held at the intermediate position.

  A door position restricting device 40 is provided inside the door 12. The door position regulating device 40 is arranged in series with respect to the arm member 22 of the door checker 20. The door position regulating device 40 will be described below.

  As shown in FIGS. 2 and 3, the door position regulating device 40 includes a case 41 fixed to the door 12, a pulley 42 that functions as a rotating body, a first rope body 43, and a second rope body 44. A reciprocating body 45, a rod member 46, a braking mechanism 47, and the like. The first cable body 43 and the second cable body 44 function as a tension transmission member capable of transmitting a tensile load. The rod member 46 functions as a compression force transmission member capable of transmitting a compression load.

  The pulley 42 can rotate about the shaft 50 in the first direction R1 and the second direction R2. A gear 51 is provided on the pulley 42. The gear 51 rotates integrally with the pulley 42.

  A first cable body 43 is wound around a first groove 55 formed on the outer periphery of the pulley 42 along the circumferential direction. A connection member 60 is provided at one end 43 a (shown in FIGS. 2 and 3) of the first cable body 43. The connection member 60 is swingably connected to the distal end portion 61 of the arm member 22 of the door checker 20. The other end 43 b (shown in FIG. 3) of the first cable body 43 is fixed to the pulley 42.

  A second cable body 44 is wound around the second groove 56 formed in the outer periphery of the pulley 42 in the opposite direction to the first cable body 43. One end 44 a (shown in FIGS. 2 and 3) of the second cable body 44 is connected to the reciprocating body 45. The other end 44 b (shown in FIG. 3) of the second cable body 44 is fixed to the pulley 42.

  The 1st rope body 43 and the 2nd rope body 44 consist of wire ropes, for example. These cords 43 and 44 have flexibility that can be wound around the pulley 42, and have strength to withstand the tensile load applied when the door 12 is opened and closed. The diameter of the second cord body 44 is smaller than the diameter of the first cord body 43. The first rope body 43 and the second rope body 44 extend in opposite directions to each other with the pulley 42 interposed therebetween, and are respectively fed out from the pulley 42 without being slackened. The first cable body 43 and the second cable body 44 may be band-shaped members.

  The reciprocating body 45 moves along a guide portion 65 (shown in FIG. 4) provided in the case 41 in a direction approaching the pulley 42 (direction indicated by an arrow B1 in FIG. 2) and a direction away from the pulley 42 (FIG. 2). In the direction indicated by the arrow B2).

  The reciprocating body 45 and the connection member 60 are connected to each other by the rod member 46. The rod member 46 extends along the first cable body 43 and the second cable body 44 through the side of the pulley 42. That is, the first rope body 43 and the second rope body 44 each extend along the rod member 46. One end 46 a of the rod member 46 is fixed to the connection member 60. The other end 46 b of the rod member 46 is fixed to the reciprocating body 45. The rod member 46 is made of a material having high rigidity such as an iron-based metal, and has a strength that does not buckle against a compressive load applied in the length direction of the rod member 46.

  An example of the braking mechanism 47 is shown in FIGS. The braking mechanism 47 includes a cylindrical fixed side member 70, a cylindrical rotary side member 71, a clutch spring 72 formed of a torsion coil spring, a release member 73, an actuator 74, and the like. The stationary member 70 and the rotating member 71 each have a cylindrical surface and are disposed adjacent to each other in the axis X direction. The rotation side member 71 can rotate relative to the fixed side member 70 about the axis X. The outer diameters of the cylindrical surfaces of the stationary member 70 and the rotating member 71 are equal to each other.

  The stationary member 70 is fixed to the case 41. For example, as shown in FIG. 5, the attachment portion 75 provided on the fixed side member 70 is fixed to the case 41 by a fixing member (not shown) such as a bolt.

  A gear 80 is provided on the rotation side member 71. The gear 80 meshes with the gear 51 of the pulley 42. Therefore, when the pulley 42 rotates in the first direction R1, the rotation side member 71 rotates in the first direction D1 (shown in FIG. 6) via the gears 51 and 80. When the pulley 42 rotates in the second direction R2, the rotation side member 71 rotates in the second direction D2 (shown in FIG. 6) via the gears 51 and 80. The number of teeth of the gear 80 of the rotation side member 71 is smaller than the number of teeth of the gear 51 of the pulley 42.

  The release member 73 can rotate relative to the stationary member 70 about the axis X. A gear portion 85 is provided on the release member 73. The gear portion 85 meshes with the output gear 86 of the actuator 74. Therefore, when the actuator 74 rotates, the release member 73 rotates via the output gear 86 and the gear portion 85. The rotation direction and rotation angle of the actuator 74 are controlled by a signal output from a switch or controller (not shown).

  The clutch spring 72 includes a coil portion 91 formed by winding an element wire 90 having a square cross section into a coil shape, a fixed arm portion 92 (shown in FIG. 3) provided at one end of the coil portion 91, and the coil portion 91. And a movable arm portion 93 provided at the other end. The fixed side arm portion 92 is fixed to the fixed side member 70. The movable arm portion 93 projects in the radial direction of the rotation side member 71. The coil portion 91 has a first portion 91a and a second portion 91b in the axis X direction.

  In a free state where no external force is applied to the clutch spring 72, the inner diameter of the coil portion 91 is smaller than the outer diameters of the cylindrical surfaces of the fixed side member 70 and the rotation side member 71. For this reason, in a state where the fixed side member 70 and the rotation side member 71 are inserted inside the clutch spring 72, the inner circumference of the coil portion 91 is caused by an elastic force (clamping force) generated by the coil portion 91 trying to shrink. The surface is in close contact with the outer peripheral surfaces of both the stationary member 70 and the rotating member 71.

  As shown in FIG. 6, when the rotation side member 71 rotates in the first direction D1, the coil portion 91 is twisted in the winding direction and the rotation side member 71 rotates in the second direction D2. At this time, the coil portion 91 is wound so as to be twisted in the rewinding direction.

  The inner peripheral surface of the first portion 91 a of the coil portion 91 is in contact with the outer peripheral surface of the fixed side member 70. The inner peripheral surface of the second portion 91 b of the coil portion 91 is in contact with the outer peripheral surface of the rotation side member 71. Since the cross section of the strand 90 is a quadrangle, the contact area of the strand 90 with respect to the fixed side member 70 and the rotation side member 71 can be increased as compared with the strand having a circular cross section.

  As shown in FIG. 6, the movable arm portion 93 of the clutch spring 72 is opposed to the pressing portion 95 of the release member 73 in the circumferential direction of the coil portion 91. The release member 73 can be moved by the actuator 74 in a direction E1 (braking mode) in which the pressing portion 95 moves away from the movable arm portion 93. Further, as shown in FIG. 7, the release member 73 is rotated in the braking release direction E2, and the movable side arm portion 93 is pushed by the pressing portion 95, whereby the coil portion 91 is forcibly moved in the rewinding direction (braking release mode). It can also be moved.

Next, the operation of the door position restriction device 40 of this embodiment will be described.
When the door 12 is moved from the fully closed state in the opening direction, the arm member 22 of the door checker 20 moves in a direction (indicated by an arrow A1 in FIG. 2) to exit from the inside of the door 12. For this reason, when the first cable body 43 is pulled by the arm member 22, the pulley 42 rotates in the first direction R1.

  At this time, as shown in FIG. 7, if the release member 73 moves in the braking release direction E2, the coil portion 91 is pushed in the rewinding direction by the pressing portion 95, so the diameter of the coil portion 91 is a little. It is in a spread state. For this reason, the inner peripheral surface of the coil part 91 is separated from the outer peripheral surfaces of the stationary member 70 and the rotating member 71. That is, since the friction between the coil portion 91 and the rotation side member 71 is substantially eliminated, the rotation side member 71 can rotate about the axis X. For this reason, the door 12 can be moved in the opening direction with a small force.

  When an obstacle or the like exists outside the door 12 when the door 12 is opened, the door 12 needs to be stopped halfway. In this case, for example, by operating the actuator 74, as shown in FIG. Then, the release member 73 is moved in the braking mode direction E <b> 1, and the pressing portion 95 is separated from the movable arm portion 93. Under this state, when a force in the opening direction is applied to the door 12, the rotation side member 71 rotates in the winding direction of the coil portion 91. For this reason, the friction force between the coil part 91 and the rotation side member 71 becomes very large, and rotation of the rotation side member 71 is restrained. Therefore, the pulley 42 is suppressed from rotating in the first direction R1, and the door 12 is further prevented from moving in the opening direction.

  When the door 12 is moved in the closing direction, the door checker 20 is moved in a direction protruding toward the inside of the door 12 (direction indicated by an arrow A2 in FIG. 2). For this reason, the rod member 46 moves in the direction indicated by the arrow C in FIG. 2, and the reciprocating body 45 moves in the direction B <b> 2 away from the pulley 42. Therefore, when the second cable body 44 is pulled, the pulley 42 rotates in the second direction R2. When the pulley 42 rotates in the second direction R2, the rotation side member 71 rotates in the second direction D2 via the gears 51 and 80.

  At this time, as shown in FIG. 6, if the release member 73 rotates in the braking mode direction E1 and the pressing portion 95 is separated from the movable arm 93, the inner peripheral surface of the coil portion 91 is on the rotation side. The rotating side member 71 rotates while sliding in the rewinding direction of the coil portion 91 while being in contact with the outer peripheral surface of the member 71. That is, the rotation side member 71 rotates while receiving an appropriate resistance (dynamic frictional force) due to the tightening force of the coil portion 91. For this reason, resistance can be given even when the door 12 is closed. Then, it can be easily confirmed that the brake mechanism 47 is functioning by moving the door 12 in the opening direction and the closing direction.

  When closing the door 12, the actuator 74 is operated to move the release member 73 in the braking release direction E 2 as shown in FIG. Press to. Then, since the diameter of the coil portion 91 is slightly widened, the inner peripheral surface of the coil portion 91 is separated from the outer peripheral surface of the rotation side member 71. Thereby, the friction between the coil part 91 and the rotation side member 71 is substantially eliminated, and the rotation side member 71 can be rotated with a small force. At this time, since the resistance of the closing operation of the door 12 is minimized, the door 12 can be moved to the fully closed position with a small force.

  In addition, you may provide the force transmission member 100 (a part is shown in FIG. 2) which has the flexibility which can transmit tension | tensile_strength and a compressive force between the arm member 22 and the rod member 46. FIG. This force transmission member can absorb the complicated movement of the door checker 20 that occurs when the door 12 is opened and closed. As an example of the force transmission member, a push-pull cable composed of a flexible outer tube and a core member can be adopted, but a link and a universal joint may be used.

  Further, the one end 43a of the first cable body 43 and the one end 46a of the rod member 46 may be connected to members on the vehicle body side other than the door checker 20, respectively. In short, the pulley 42 rotates in the first direction R1 when the first cable body 43 is pulled when the door 12 is opened, and the pulley 42 is pushed when the rod member 46 is pushed when the door 12 is closed. What is necessary is just to be comprised so that it may rotate to direction R2. Further, an electromagnetic clutch may be used as a braking mechanism for suppressing the rotation of the pulley 42.

1 is a perspective view of a part of an automobile provided with a door position restriction device according to an embodiment of the present invention. The perspective view of the door position control apparatus and door checker which were shown by FIG. The top view which shows the door position control apparatus shown by FIG. 2 in a partial cross section. Sectional drawing of the door position control apparatus in alignment with the F4-F4 line | wire in FIG. The perspective view of the braking mechanism of the door position control apparatus shown by FIG. Sectional drawing when the brake mechanism of the door position control apparatus shown in FIG. 2 is in a braking state. FIG. 7 is a cross-sectional view when the braking mechanism shown in FIG. 6 is switched to a braking release state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Automobile 11 ... Car body 12 ... Door 20 ... Door checker 40 ... Door position control apparatus 42 ... Pulley 43 ... 1st rope (tension transmission member)
44 ... 2nd rope body 45 ... Reciprocating body 46 ... Rod member (compression force transmission member)
47 ... Braking mechanism 70 ... Fixed side member 71 ... Rotation side member 72 ... Clutch spring

Claims (5)

A door that can be freely opened and closed by a hinge on the door mounting portion of the vehicle body;
A pulley disposed within the door and rotatable in a first direction and a second direction;
One end is connected to the vehicle body side member, the other end is wound around the pulley, and the pulley is rotated in the first direction by being pulled by the vehicle body side member when the door moves in the opening direction. A tension transmitting member to be
One end is connected to the vehicle body side member, the other end extends in the direction of the pulley, can transmit a compression load, and is pushed by the vehicle body side member when the door moves in the closing direction. A compression force transmitting member for rotating the pulley in the second direction;
A braking mechanism that suppresses rotation of the pulley in the first direction and the second direction;
A door position restricting device comprising: A door that can be freely opened and closed by a hinge on the door mounting portion of the vehicle body;
A pulley disposed within the door and rotatable in a first direction and a second direction;
One end is connected to the vehicle body side member, the other end is wound around the pulley, and the pulley is rotated in the first direction by being pulled by the vehicle body side member when the door moves in the opening direction. A first cable body to be
A reciprocating body that is arranged on the opposite side of the pulley from the body side member and is movable in a direction approaching the pulley and a direction away from the pulley;
One end is connected to the member on the vehicle body side, the other end is connected to the reciprocating body, and the door is pushed by the member on the vehicle body side when the door moves in the closing direction, thereby removing the reciprocating body from the pulley. A rod member that moves in the direction of separation;
One end is connected to the reciprocating body, the other end is wound around the pulley in a direction opposite to the first cable body, and the pulley is moved in the second direction when the door moves in the closing direction. A second cord to rotate;
A braking mechanism that suppresses rotation of the pulley in the first direction and the second direction;
A door position restricting device comprising:   The vehicle body side member is an arm portion of a door checker, and one end of the arm portion is swingably attached to the vehicle body. The other end of the arm portion is connected to one end of the first cable body and the rod member. One end is connected, The door position control apparatus of Claim 2 characterized by the above-mentioned.   The first cable body and the second cable body extend in opposite directions with the pulley interposed therebetween, and the rod member extends along the first cable body and the second cable body. The door position restricting device according to claim 2, wherein the door position restricting device is provided.   The door position according to claim 2, wherein a force transmission member capable of transmitting tension and compression force and having flexibility is provided between the vehicle body side member and the rod member. Regulatory device.

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