JP2004308112A - Movable hinge mechanism for slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the amount of translation operation of a slide door without enlarging. <P>SOLUTION: A second door supporting member 30 is mounted on a first door supporting member 20, which is supported in the state of being movable along a door guide 10 and which swings along an arc-shaped part 12 of the door guide 10, in such a manner as to be freely slidable in a direction perpendicular to the direction of the movement of the member 20. A third irrotational door supporting member 40 for supporting the door in parallel with a linear part of the door guide 10 is mounted on the member 30. A first motion conversion means 50, which relatively rotates the member 40 so that a rotational motion associated with a swing motion can be inhibited when the members 20 and 30 swing along the arc-shaped part 12, is provided between the members 30 and 40. A second motion conversion means 60, which converts the rotational motion by the member 50 into a slide-direction linear motion along with the relative rotation of the member 40 so as to transfer it to the supporting member, is provided between the members 20 and 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a movable hinge mechanism for a sliding door used for a sliding door of a wagon, for example.
[0002]
[Prior art]
As is well known, the slide door of a wagon car opens and closes in a direction parallel to the door, but moves parallel to a direction perpendicular to the door near the closed position to avoid interference with the body.
[0003]
That is, when an external force in the opening direction is applied to the closed slide door, the door moves parallel to the outside of the body while moving to the rear of the body, and after moving to the outside of the body, moves only to the rear of the body. Completely open. Conversely, when closing an open slide door, the slide door moves to the front of the body to near the closed position, and then moves in parallel to the inside of the body while moving to the front of the body, and is completely closed. become.
[0004]
By the way, there is a demand for such a sliding door to increase the amount of parallel movement in the vicinity of the closed position. That is, in recent years, restrictions on the modification of automobiles have been relaxed, and cases where the outer surface of the body is greatly extended outward and shelves and the like are attached to the inner surface of the slide door are increasing. When such a modification is made, the sliding door may interfere with the outer surface of the body and may not be able to be opened and closed with the hinge mechanism of the standard equipment depending on the degree of the modification.
[0005]
Patent Literature 1 discloses one hinge mechanism that meets such a demand. The hinge mechanism presented in Patent Document 1 will be described with reference to FIG.
[0006]
[Patent Document 1]
JP 2000-073644 A
The hinge mechanism presented in Patent Document 1 includes a first door support member 1 movably supported along a door guide 10 and a slide door connected to the first door support member 1 to move a slide door in a sliding direction. And a motion converting means 3 provided between the two door support members.
[0008]
The door guide 10 is provided on the side of the skeleton on which the slide door is mounted. A straight portion 11 is formed along the opening / closing direction of the slide door, and an arc portion 12 is continuously provided on the start end side of the straight portion 11. The structure has been. The first door support member 1 normally swings along an arc portion 12 of the door guide 10. The second door support member 2 is rotatably supported by the first door support member 1 by a hinge shaft 4, and the hinge shaft 4 is guided by a slide groove 5 perpendicular to the slide door to slide. It is movably supported in a direction perpendicular to the door. The motion converting means 3 includes a pinion gear 6 fixed to the first door support member 1 and a rack gear 7 provided on the second door support member 2 so as to mesh with the pinion gear 6. The pinion gear 6 is concentric with the hinge shaft 4, and the rack gear 7 is parallel to the slide groove 5 perpendicular to the slide door.
[0009]
When the slide door is pulled backward from a state in which the slide door is closed, the first door support member 1 pivots along the arc portion 12 of the door guide 10. At this time, the pinion gear 6 rotates around the center O of the arc portion 12 together with the first door support member 1. The turning motion of the pinion gear 6 is changed by the motion converting means 5 into a linear motion in a direction perpendicular to the slide door. As a result, the second door support member 2 relatively rotates in the opposite direction, and the rotational movement accompanying the turning of the second door support member 2 is absorbed. Maintain a state parallel to. At the same time, the second door support member 2 linearly moves relative to the first door support member 1 in a direction (outside) perpendicular to the slide door.
[0010]
As a result, the translational movement amount ΔY of the sliding door in the parallel movement section (X1-X2) in which the first door support member 1 pivots along the arc portion 12 of the door guide 10 is equal to the first door support member 1. The movement amount ΔY1 of the second door support member 2 is added to the movement amount ΔY1 due to the turning.
[0011]
[Problems to be solved by the invention]
By using the hinge mechanism presented in Patent Literature 1, the parallel movement amount ΔY in the parallel movement section (X1-X2) of the slide door becomes the movement amount ΔY1 accompanying the turning of the first door support member 1, and the second movement amount. Of the door support member 2 is added. This makes it possible to increase the slide door parallel movement amount ΔY without increasing the slide door movement amount ΔX in the slide movement section (X1-X2).
[0012]
Here, in order to further increase the parallel movement amount ΔY, it is necessary to increase the straight movement amount ΔY2 of the second door support member 2. This linear movement amount ΔY2 is determined by the operation converting means 5, and the rotation operation of the second door support member 2 when the first door support member 1 pivots along the arc portion 12 of the door guide 10 is determined. Since there is a restriction that the second door support member 2 is kept parallel to the sliding door by absorbing the light, the linear movement amount ΔY2 is limited.
[0013]
That is, the rotation angle of the pinion gear 6 corresponds to the rotation angle of the second door support member 2 when the first door support member 1 pivots along the arc portion 12 of the door guide 10. Specifically, if the turning angle of the first door support member 1 is 60 degrees, the relative rotation angle of the second door support member 2 is also 60 degrees, and the straight movement amount ΔY2 is limited to 60 degrees. You. Due to this limitation, the rotation angle of the pinion gear 6 of the motion conversion means 5 cannot be increased, and only the increase in the diameter of the pinion gear 6 increases the linear movement amount ΔY2, but this increases the size of the hinge mechanism. Inevitable.
[0014]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a movable hinge mechanism for a slide door that can increase the amount of parallel movement of the slide door without significantly increasing the size.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, a movable hinge mechanism for a sliding door according to the present invention, when opening and closing the sliding door in a direction parallel to the door, moves the door in a direction substantially perpendicular to the door near the closing portion. A movable hinge mechanism for a sliding door that translates in parallel with the sliding door, the hinge mechanism being provided on a side of a skeleton on which the sliding door is mounted, a linear portion is formed along the opening and closing direction of the door, and a starting end side of the linear portion A first door support member that is movably supported along a door guide having an arc portion connected to the first door support member and that pivots along the arc portion of the door guide; A second door support member slidably mounted in a direction substantially perpendicular to the moving direction of the first door support member, the second door support member pivotally moving together with the first door support member when the first door support member moves along an arc portion of the door guide; A non-rotating third door support member rotatably attached to the second door support member and always supporting the sliding door parallel to the linear portion of the door guide; and a second door support member and a third door support member. When the first door support member and the second door support member pivotally move along the arc portion of the door guide, the pivotal movement of the third door support member is provided. A first movement converting means for relatively rotating the third door support member, and a first door provided between the first door support member and the second door support member so as to prevent the accompanying rotational movement; When the support member and the second door support member pivotally move along the arc portion of the door guide, the rotational motion generated by the first motion conversion means with the relative rotation of the third door support member In the sliding direction of the second door support member. Is converted into kinetic is and a second motion conversion means for transmitting to the support member.
[0016]
With this configuration, in the movable hinge mechanism for a slide door according to the present invention, the parallel movement amount of the slide door can be increased without increasing the gear diameter, that is, the radius of rotation in the rotational motion. That is, the parallel movement amount ΔY of the sliding door in the parallel movement section in which the first door support member swings along the arc portion of the door guide is the normal movement amount accompanying the swing of the first to third door support members. The linear movement amount ΔY2 of the second door support member is added to ΔY1, but the rotation of the third door support means is absorbed by the third door support member and the second door support. The first motion converting means provided between the members performs linear motion by the absorbed rotational motion by the second motion converting means provided between the second door supporting member and the first door supporting member. Do. Due to the function sharing by the two motion converting means, the final rotation angle of the motion converting means can be independently set without being influenced by the turning angle. As a result, the turning radius in the rotary motion can be increased. Without doing so, it is possible to increase the straight movement amount ΔY2.
[0017]
It is preferable that the first operation converting means also serves as a speed increasing mechanism for increasing the rotational movement accompanying the relative rotation of the third door supporting means.
[0018]
It is preferable that the second motion conversion mechanism is constituted by a combination of a rack gear provided on the first door support member side and a pinion gear provided on the second door support member side.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are plan views of a movable hinge mechanism for a sliding door according to an embodiment of the present invention. FIG. 1 shows a state where the sliding door is closed, and FIG. 2 shows a state where the sliding door has completed parallel movement. Is shown.
[0020]
The movable hinge mechanism for a sliding door according to the present embodiment is used for a sliding door of a wagon car, and is movably supported along a door guide 10 horizontally mounted on a body of the wagon car. A first door support member 20, a second door support member 30 slidably attached to the first door support member 20, and a third support member rotatably attached to the second support member 30 40. The door guide 10 has a straight portion 11 extending in the vehicle length direction and an arc portion 12 continuously provided at the start end thereof. The arc portion 12 is curved at a predetermined radius from the start end of the straight portion 11 to the inside of the body.
[0021]
Between the second door support member 30 and the third door support member 40, there is provided a first operation conversion means 50 constituted by three spur gears 51 to 53, and the first door support member 50 is provided. Between the member 20 and the second door support member 30, there is provided a second motion converting means 60 constituted by a combination of a rack gear 61 and a pinion gear 62.
[0022]
When the first door support member 20 and the second door support member 30 pivotally move along the arc portion 12 of the door guide 10, the first operation conversion means 50 rotates the third door support member 40. In order to prevent the operation, the speed increasing mechanism is configured to convert the turning operation of the first door support member 20 and the second door support member 30 into a rotational motion and absorb the rotational motion, and increase the number of rotations. The second motion converting means 60 is configured to rotate the first motion converting means 50 when the first door support member 20 and the second door support member 30 pivotally move along the arc portion 12 of the door guide 10. The movement is converted into a linear movement in the sliding direction of the second door support member 30 and transmitted to the support member.
[0023]
The first door support member 20 is a turning member that turns and moves along the arc portion 12 of the door guide 10. The door support member 20 has a moving portion 20A supported by the door guide 10 and a support portion 20B projecting outward at a right angle from the moving portion 20A to support the second door support member 30. The moving portion 20A protrudes outward from the door guide 10, and its base is cantilevered on the door guide 10 by a pair of vertical rollers 21, 21 and a horizontal roller 22 provided between the vertical rollers 21, 21. Have been. The support portion 20B is a vertical plate perpendicular to the moving direction of the moving portion 20A, and has guide grooves 23 on upper and lower end surfaces. A horizontal rack gear 61 constituting the second motion converting means 60 is provided on the surface of the support portion 20B.
[0024]
The second door support member 30 is a turning member that performs a turning operation together with the first door support member 20 when the first door support member 20 turns and moves along the arc portion 12 of the door guide 10. At the same time, the door support member 30 is a slider slidably supported in a direction perpendicular to the door guide 10 along the surface of the support portion 20B by guide grooves 23 provided on both end surfaces of the support portion 20B.
[0025]
A horizontal pinion gear 62 that meshes with the rack gear 61 is rotatably attached to a base of the second door support member 30 by a vertical support shaft 63. The pinion gear 62, together with the rack gear 61, constitutes a second operation conversion means 60. The support shaft 63 is a non-fixed shaft rotatable with respect to the second support member 30, and is fixed between the support shaft 63 and the pinion gear 62.
[0026]
The third door support member 40 is a non-rotating member that constantly supports the sliding door in parallel with the linear portion 11 of the door guide 10. The door support member 40 is rotatably attached to the distal end of the second door support member 30 by a vertical support shaft 41. The support shaft 41 is a fixed shaft fixed to the third door support member 40, and is rotatable with respect to the second door support member 30.
[0027]
A first gear 51 is fixed to the support shaft 42. The first gear 51 meshes with a third gear 53 fixed to a non-fixed support shaft 63 via a free second gear 52 attached to the second door support member 40. The first gear 51, the second gear 52, and the third gear 53 form a third gear when the first door support member 20 and the second door support member 30 pivotally move along the arc portion 12 of the door guide 10. In order to prevent the rotation operation of the door support member 40, the first operation changing means 50 is configured to convert the turning operation of the first door support member 20 and the second door support member 30 into a rotational motion and absorb it. At the same time, a speed increasing mechanism for increasing the number of revolutions of the third gear 53 to a predetermined multiple of the number of revolutions of the first gear 51, here substantially twice.
[0028]
Incidentally, the second motion converting means 60 is provided to the first motion converting means 50 when the first door support member 20 and the second door support member 30 pivotally move along the arc portion 12 of the door guide 10. The generated rotational movement is converted into a linear movement in the sliding direction of the second door support member 30 and transmitted to the support member.
[0029]
Next, the operation of the movable hinge mechanism for a sliding door according to the present embodiment will be described in detail.
[0030]
When the sliding door is closed, the first door support member 20 is at the start position of the arc portion 12 of the door guide 10. This state is shown in FIG. In order to open the sliding door, when the door is pulled to the rear of the body in this state, the first door support member 20 which is a revolving member, together with the second door support member 30 which is the same revolving member, has an arc of the door guide 10. It turns along the part 12.
[0031]
At this time, the slide door maintains a state parallel to the linear portion 11 of the door guide 10. For this reason, the third door support member 40 that supports the sliding door does not rotate, and turns around the center of the circular arc portion 12 while maintaining a state parallel to the linear portion 11 of the door guide 10. This turning operation without rotation is realized by the rotation of the third door support member 40 relative to the second door support member 30 and the rotation operation being absorbed. Then, with the relative rotation of the third door support member 40, the first gear 51 of the first operation conversion means 50 relatively rotates.
[0032]
When the first gear 51 rotates, the third gear 53 rotates in the same direction at approximately twice the number of rotations. The rotation of the third gear 53 is transmitted to the pinion gear 63 in the second motion conversion means 60 via the support shaft 63. As a result, the second door support means 30 is pushed out together with the third door support means 40 in the body outward direction perpendicular to the linear portion 11 of the door guide 10. FIG. 2 shows a state in which the second door support means 30 and the third door support means 40 have been pushed to the outermost sides after passing through the arc portion 12 of the door guide 10. Thus, when the first door support means 20, the second door support means 30, and the third door support means 40 make a turning movement along the arc portion 12 of the door guide 10, the parallel door moving amount ΔY becomes a turning movement. , And the amount of straight movement ΔY2 by the second motion conversion means 60.
[0033]
Here, it should be noted that the first motion converting means 50 absorbs the rotational motion caused by the turning of the third door support means 40, and the second linear motion moves outward by the absorbed rotational motion. The function is performed by the motion converting means 60, and the function is shared by the two motion converting means, so that the final rotation speed can be set independently without being influenced by the turning angle. Here, the rotational movement of the third door support means 40 accompanying the turning is increased to approximately twice the rotational speed. As a result, it is possible to perform a linear motion at a rotation angle exceeding the turning angle, and it is possible to increase the latter linear movement amount ΔY2 without increasing the rotation radius in the rotation motion.
[0034]
That is, the movable hinge mechanism presented in Patent Document 1 is in a state in which the first gear 51 of the first operation converting means 50 is directly meshed with the rack gear 61 of the second operation changing means 60. If the turning angle in the parallel movement section is 60 degrees, only the straight movement amount ΔY2 for 60 degrees can be obtained. However, in the movable hinge mechanism for the sliding door according to the present embodiment, the turning of the third door support means 40 is performed. Is increased to almost twice the number of revolutions by the first motion converting means 50, so that even if the turning angle in the parallel movement section is 60 degrees, it is as if turning 120 degrees. The straight movement amount ΔY2 is obtained.
[0035]
If the speed increase ratio determined by the first gear 51 to the third gear 53 in the first operation conversion means 50 is further increased, it is also possible to obtain a larger linear movement amount ΔY2.
[0036]
【The invention's effect】
As described above, the movable hinge mechanism for a sliding door according to the present invention is provided with the second door support member slidably with respect to the first door support member that pivots along the arc portion of the door guide. A third door support member is provided rotatably with respect to the second door support member, and the third door support member and the second door support member absorb the rotational movement accompanying the turning of the third door support means. The first motion converting means provided between the members performs linear motion by the absorbed rotational motion by the second motion converting means provided between the second door supporting member and the first door supporting member. By performing the function sharing by the two motion converting means, the final rotation angle of the motion converting means can be set independently without being influenced by the turning angle, thereby resulting in a marked increase in size. Without the sliding door Possible to increase the line movement amount.
[Brief description of the drawings]
FIG. 1 is a plan view of a movable hinge mechanism for a sliding door according to an embodiment of the present invention, showing a state where the sliding door is closed.
FIG. 2 is a plan view of the movable hinge mechanism for the sliding door, showing a state in which the sliding door has completed parallel movement.
FIG. 3 is a plan view showing a schematic configuration of a conventional movable hinge mechanism for a sliding door.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Door guide 11 Linear part 12 Arc part 20 First door support member 20A Moving part 20B Support part 21, 22 Roller 23 Guide groove 30 Second door support member 40 Third door support member 41 Support shaft 50 First Motion converting means 51, 52, 53 Gear 60 Second motion converting means 61 Rack gear 62 Pinion gear 63 Support shaft

Claims (3)

A movable hinge mechanism for a sliding door that, when opening and closing the sliding door in a direction parallel to the door, moves the door in a direction substantially perpendicular to the door near the closing portion,
The sliding door is provided on the side of the body to which the sliding door is attached, and a linear portion is formed along the opening and closing direction of the door, and is movable along a door guide having an arc portion continuously provided on the starting end side of the linear portion. A first door support member, which is supported by the door guide and turns along an arc portion of the door guide,
The first door support member is slidably attached to the first door support member in a direction substantially perpendicular to the direction of movement of the support member, and moves together with the support member when the first door support member moves along the arc portion of the door guide. A second door support member that pivots and moves;
A non-rotating third door support member rotatably mounted on the second door support member and always supporting the sliding door parallel to the linear portion of the door guide;
The first door support member and the second door support member are provided between the second door support member and the third door support member, and when the first door support member and the second door support member pivotally move along the arc portion of the door guide, A first motion converting means for relatively rotating the third door support member so as to prevent a rotational movement associated with a turning operation of the third door support member;
The first door support member and the second door support member are provided between the first door support member and the second door support member, and when the first door support member and the second door support member pivotally move along the arc portion of the door guide, The second motion for converting the rotational motion generated by the first motion converting means in accordance with the relative rotation of the third door support member into a linear motion in the sliding direction of the second door support member and transmitting the linear motion to the second door support member. A movable hinge mechanism for a sliding door, comprising: The movable hinge mechanism for a sliding door according to claim 1, wherein the first motion converting means also serves as a speed increasing mechanism for increasing a rotational movement accompanying the relative rotation of the third door supporting means. The second motion conversion mechanism is configured by a combination of a rack gear provided on a side of the first door support member and a pinion gear provided on a side of the second door support member. A movable hinge mechanism for a sliding door according to claim 1.

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