JP5452674B2 - Door opening and closing biasing device - Google Patents

Description

  The present invention relates to a door opening / closing urging device that applies an opening urging force for opening a fully-closed slide door and a closing urging force for closing the fully-open slide door to the slide door by operating an operation unit.

  As a conventional door opening / closing urging device of this type, the applicant of the present application pushes the slide door in the closing direction and the opening direction by the closing pressing member and the opening pressing member that rotate symmetrically by the operation of the operation unit. What has been developed has already been developed (see Patent Document 1).

  This door opening and closing urging device is provided with a door tip protrusion and a door bottom protrusion protruding in a horizontal direction perpendicular to the sliding direction of the slide door at the door tip end of the slide door and the opposite door edge end. A closing pressing member and an opening pressing member that rotate around a horizontal rotation axis orthogonal to the sliding direction are disposed between the door tip protrusion and the door bottom protrusion. When the operation portion is operated, the closing pressing member and the opening pressing member rotate symmetrically so that the lower end portions are separated from each other about the upper end portion. For example, when the sliding door is in the fully open state, the lower end portion of the closing pressing member pushes the door-end protrusion and slides the sliding door in the closing direction, while when the sliding door is in the fully closed state, The lower end portion was configured to push the door bottom protrusion and slide the sliding door in the opening direction.

Japanese Patent No. 4497428 (paragraphs [0152] to [0159], FIG. 25)

  By the way, when the sliding door device provided with the door opening / closing urging device described above is installed in a hospital or a nursing facility, there is a possibility that a physically weak person may use it. Therefore, further improvement in operability is desired. It was.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a door opening / closing urging device capable of improving operability.

  The door opening / closing urging device according to the invention of claim 1 made to achieve the above object is provided in the vicinity of an intermediate portion in the sliding direction in a moving area of the sliding door that opens and closes an opening provided in the vertical wall. A door opening / closing biasing device comprising a biasing mechanism part and an operating part for operating the biasing mechanism part, wherein the door front end part is located on the front side when sliding in the closing direction of the sliding door; The door end protrusion and the door edge protrusion protrude in the horizontal direction perpendicular to the sliding direction from the opposite end of the door butt, and when the sliding door is fully closed, While the door butt protrusion adjoins or abuts, the door end protrusion adjoins or abuts the front side of the urging mechanism when the slide door is fully opened, and the fully closed slide door is operated by operating the operation part. Opening bias force for opening from the biasing mechanism part to Tojiri projection On the other hand, in the door opening / closing urging device that applies a closing urging force for closing the fully opened slide door from the urging mechanism part to the door-end protrusion, the urging mechanism part is operated in the sliding direction. There are provided a front lever and a rear lever that rotate symmetrically by the operation of the part, and the front lever and the rear lever are inclined so as to be separated from each other obliquely downward, and on the side raised by the operation of the operation part. A front abutting inclined surface and a rear abutting inclined surface for applying an opening urging force and a closing urging force to the door tip protrusion and the door butt protrusion are formed by changing the inclination angle, and the rotation fulcrum of the front lever is Arranged at a position that is always obliquely downward with respect to the point of application to the door-end projection moving on the front-side contact inclined surface, and arranged the pivot point of the rear lever at the symmetrical position of the pivot point of the front lever Of the front lever and rear lever The force point is set so that the force point distance, which is the distance between the dynamic fulcrum and the force point to which the operating force is applied from the operation unit, is greater than the maximum value of the action point distance, which is the distance between the rotation fulcrum and the action point. It has the characteristics at the place of placement.

  According to a second aspect of the present invention, in the door opening / closing urging device according to the first aspect, the front lever and the rear lever are extended in a direction inclined with respect to the vertical direction, and the upper ends thereof are supported by the upper hinge support shaft. A front support lever and a rear support lever that are rotatably connected to each other and that are rotatably supported by a lower hinge support shaft disposed below the upper hinge support shaft and extend away from each other are provided, The lower ends of the front lever and the rear lever are rotatably connected to the front ends of the front support lever and the rear support lever, and the lower hinge support shaft is fixed to the vertical wall, while the upper hinge support shaft is It is characterized in that it is supported by a hinge guide fixed to a vertical wall so that it can move up and down, and an operating force from the operating portion is applied as an upward force to the upper hinge support shaft.

  According to a third aspect of the present invention, there is provided the door opening / closing biasing device according to the first aspect, wherein the relay hinge support shaft is supported so as to be movable up and down on the symmetry center of the front lever and the rear lever, and the relay hinge support shaft has a lower end. A front relay lever and a rear relay lever that are pivotally supported and extend obliquely upward. The upper end of the front relay lever is pivotally connected to the front lever, while the upper end of the rear relay lever The operation force from the operation unit is applied to the front lever and the rear lever via the relay hinge support shaft, the front relay lever, and the rear relay lever. However, it has characteristics.

  According to a fourth aspect of the present invention, in the door opening / closing urging device according to any one of the first to third aspects, the position of the front lever and the rear lever are separated from the symmetry center from the pivot point of the front lever. It has a pivoting fulcrum, and has an auxiliary front abutting inclined surface that is gently inclined forward and lower than the front abutting inclined surface, and the door-end protrusion is transferred from the front abutting inclined surface, and is operated from the front lever. Auxiliary front lever that rotates so that the auxiliary front-side abutting inclined surface is raised in response to the operating force, and pivots away from the center of symmetry of the front lever and rear lever from the pivot point of the rear lever It has an auxiliary rear abutting inclined surface that has a fulcrum and is inclined more slowly rearward than the rear abutting inclined surface, and the door butt protrusion is transferred from the rear abutting inclined surface, from the rear lever Auxiliary rear abutting inclined surface is raised by receiving the operation force of the operation unit Characterized in place and a dynamic assisting rear lever.

  According to a fifth aspect of the present invention, in the door opening / closing urging device according to any one of the first to fourth aspects, the operation portion is capable of reciprocating between the start end position and the end position, Between the mechanism unit and the operation unit, the operation unit is connected while the operation unit is moved from the start position to the end position, and the operation force of the operation unit is transmitted to the urging mechanism unit, and when the end unit is reached, the operation unit is disconnected. It is characterized in that a transmission switching mechanism that does not transmit the operation force of the operation unit to the urging mechanism unit is provided.

  According to a sixth aspect of the present invention, in the door opening / closing urging device according to the fifth aspect, the transmission switching mechanism operates integrally with the operation portion to linearly move from the start end position to the end position, and is orthogonal to the linear movement direction. A hook that rotates between an engagement position and a disengagement position around a rotating shaft, a driven member that operates integrally with the urging mechanism portion and moves straight from the start position to the end position, and the hook During the straight movement from the position to the end position, the hook is held in the engagement position so that it can be moved directly with the driven member. When the hook reaches the end position, the hook is guided to the engagement release position and driven. It is characterized in that it is provided with a hook guide for releasing engagement with the member.

[Inventions of Claims 1 and 2]
According to the door opening / closing urging device of the present invention, when the operating portion is operated when the slide door is in the fully open state, the front lever and the rear lever rotate symmetrically about the respective rotation fulcrums, and the front side of the front lever The door tip protrusion comes into contact with the contact inclined surface, and a closing biasing force for closing the slide door is applied to the door tip protrusion. The door-end protrusion receives a closing biasing force while moving on the front-side contact inclined surface, whereby the fully-open slide door slides in the closing direction. Here, the rotation fulcrum of the front lever is disposed at a position that is always obliquely downward with respect to the point of application to the door-end protrusion moving on the front contact inclined surface.

  When the operating unit is operated when the sliding door is in the fully closed state, the front lever and the rear lever rotate symmetrically about the respective pivots, and the rear edge of the rear lever comes into contact with the rear abutting slope. Abuts, and an opening biasing force for opening the sliding door is applied to the door butt protrusion. The door butt protrusion receives a rotational urging force while moving on the rear abutting inclined surface, whereby the fully closed sliding door slides in the opening direction. Here, the rotation fulcrum of the rear lever is disposed at a position that is always obliquely downward with respect to the point of application to the door butt protrusion moving on the rear contact inclined surface.

  And according to this invention, the power point distance which is the distance between the power point to which the operation force from an operation part is provided among a front lever and a rear lever, and a rotation fulcrum is made into a rotation fulcrum and an action point. Since the power point is arranged so as to be larger than the maximum value of the action point distance which is the distance between the two, it is possible to apply a closing urging force larger than the operation force applied to the force point of the front lever to the door-end protrusion. And an opening urging force larger than the operation force applied to the power point of the rear lever can be applied to the door butt protrusion. As a result, the sliding door can be opened and closed with a relatively light force, and the operability can be improved.

  In addition, when the front lever is rotated around the rotation fulcrum by the operation of the operation unit, the point of action of the front lever on the door tip projection moves so as to approach the rotation fulcrum of the front lever. The ratio of the closing biasing force to the applied operating force can be gradually increased in the course of the operation. Similarly, when the rear lever is rotated around the rotation fulcrum by the operation of the operation unit, the action point of the rear lever on the door butt protrusion moves so as to approach the rotation fulcrum of the rear lever. The ratio of the opening biasing force to the operating force applied to the rear lever can be gradually increased in the course of the operation.

  Furthermore, according to the present invention, when the operation unit is operated in the fully open state, the contact of the door tip protrusion and the front contact inclined surface is maintained by the weight of the slide door, and the operation is performed in the fully closed state. When the unit is operated, the contact between the door butt protrusion and the rear contact inclined surface is maintained by the weight of the slide door. As a result, when the operation unit is operated in the fully open state, it is possible to reliably apply the operation force applied to the front lever to the door-end protrusion as a closing biasing force. When operated, the operating force applied to the rear lever can be reliably applied to the door butt protrusion as an opening urging force.

  Here, the respective rotation fulcrums of the front lever and the rear lever may be fixed so as not to move, and the respective rotation fulcrums of the front lever and the rear lever are moved as in the invention of claim 2. It may be. That is, according to the invention of claim 2, when the upper hinge support shaft moves up and down by the guide of the hinge guide, the front lever and the rear lever are on the same arc centered on the lower hinge support shaft below the upper hinge support shaft. Each rotation fulcrum of the side lever moves symmetrically.

  According to the second aspect of the present invention, when the operating portion is operated in the fully open state, the entire front lever moves upward while raising the inclination angle of the front-side contact inclined surface. A closing force is applied. Similarly, when the operation unit is operated in the fully closed state, the rear lever moves as a whole while raising the inclination angle of the rear abutting inclined surface, so that an opening biasing force is applied to the door butt protrusion. To do.

  And according to the structure of Claim 2, since the front side lever and the whole rear lever move upward, compared with the case where each rotation fulcrum of a front side lever and a rear side lever is fixed, a door-end protrusion and a front side It is possible to lengthen the distance that the slide door moves in the state where the contact inclined surface is in contact and the distance that the slide door moves in the state where the door bottom protrusion and the rear contact inclined surface are in contact.

[Invention of claim 3]
According to the invention of claim 3, when the relay hinge support shaft moves upward by the operation of the operation portion, the upper end portion of the front relay lever and the upper end portion of the rear relay lever rotate symmetrically so as to be separated from each other, The front lever and the rear lever rotate symmetrically so as to be pushed up by the front relay lever and the rear relay lever.

[Invention of claim 4]
According to the fourth aspect of the present invention, when the operating portion is operated, the front lever and the rear lever rotate symmetrically so as to cause the respective inclination angles of the front contact inclined surface and the rear contact inclined surface, and the auxiliary lever. The front lever receives the operating force from the front lever and rotates so as to cause the inclination angle of the auxiliary front abutting inclined surface, and the auxiliary rear lever receives the operating force from the rear lever and the auxiliary rear abutting inclined surface Rotate to raise the tilt angle. When the operation unit is operated in the fully opened state, the door-end protrusion first contacts the front contact inclined surface of the front lever and moves on the front contact inclined surface toward the rotation fulcrum of the front lever. Then, on the way, the vehicle moves to the auxiliary front side contact inclined surface of the auxiliary front side lever and moves on the auxiliary front side contact inclined surface toward the pivot point of the auxiliary front side lever. In addition, when the operation unit is operated in the fully closed state, the door butt protrusion comes into contact with the rear contact inclined surface of the rear lever and faces the rear contact inclined surface toward the pivot point of the rear lever. From the middle, it changes to the auxiliary rear contact inclined surface of the auxiliary rear lever and moves on the auxiliary rear contact inclined surface toward the pivot point of the auxiliary rear lever.

  Here, in general, the static frictional force applied until the stationary object starts moving is larger than the dynamic frictional force applied to the moved object, and therefore, the operation resistance may be felt particularly large when the sliding door is first moved. On the other hand, according to the invention of claim 4, at the time of the initial movement of the sliding door that is stationary in the fully opened state, after applying a closing biasing force by the relatively large front contact inclined surface, Since the closing urging force is applied by the auxiliary front-side contact inclined surface with a gentle inclination, it is possible to make it difficult to feel the operation resistance at the time of initial movement when the slide door is closed. Similarly, it is possible to make it difficult to feel the operating resistance at the time of initial movement when opening the sliding door that is stationary in the fully closed state.

[Invention of claim 5]
In the case where the transmission switching mechanism according to the invention of claim 5 is not provided, when the operation unit is operated from the start position to the end position and is held at the end position as it is, the slide door is fully opened and fully closed. Things can't be done. For example, when the operation unit is operated in the fully closed state and kept at the end position as it is, the front lever and the rear lever are maintained in a state of being moved from the initial position when not operated, so that the slide door is fully opened. The door-end protrusion and the front lever interfere before it becomes, and it can no longer advance. Similarly, when the operation unit is operated in the fully closed state and kept at the end position as it is, the door butt protrusion and the rear lever interfere with each other just before the sliding door is fully closed, and no further advancement is possible. End up.

  On the other hand, according to the invention of claim 5, when the operation unit is operated in the fully closed state, when the operation unit reaches the end position, the operation between the urging mechanism unit and the operation unit is cut off. The operating force of the part is not transmitted to the urging mechanism part. As a result, the front lever and the rear lever return to the same state as in the non-operation state, so that the door tip protrusion and the front lever are prevented from interfering with each other before the sliding door is fully opened. Even if is kept in the terminal position, the sliding door can be fully opened. Similarly, when the operation unit is operated in the fully opened state, even if the operation unit continues to be held at the end position, the door-butt projection and the rear lever interfere before the sliding door is fully closed. Therefore, the sliding door can be fully closed.

[Invention of claim 6]
According to the invention of claim 6, the transmission switching mechanism operates integrally with the operation portion and linearly moves from the start end position to the end position, and operates integrally with the biasing mechanism portion from the start end position to the end position. The hook and the driven member are engaged with each other when the operating portion is not operated. When the operation unit is operated, the hook moves directly from the start end position to the end position, and the follower member engaged with the hook moves together with the hook from the start end position to the end position. When the hook reaches the end position, the hook is rotated by the hook guide on the rotation axis orthogonal to the linear movement direction, and the engagement with the driven member is released. Thereby, between an operation part and an energizing mechanism part will be in a blocking state.

The front view of the sliding door apparatus which concerns on 1st Embodiment of this invention. Front view of sliding door device when fully closed (A) Front view of slide door device moving in open direction, (B) Front view of slide door device in fully open state Perspective view of the guide rail in the open guide tilt posture Perspective view of the guide rail in the closed guide tilt position (A) Conceptual diagram showing the sliding door opening operation, (B) Conceptual diagram showing the sliding door closing operation Perspective view of urging mechanism in door opening / closing urging device Front view of urging mechanism when not in operation Front view of the biasing mechanism during operation Conceptual diagram showing the positional relationship between the urging mechanism, door tip protrusion, and door bottom protrusion The front view at the time of the non-operation of the urging mechanism part which concerns on 2nd Embodiment Front view of the biasing mechanism during operation (A) Cross-sectional view of transmission switching mechanism, (B) Cross-sectional view cut along XX section (A) Side sectional view of the transmission switching mechanism when the operation unit is operated to the end position, (B) Cross sectional view cut along the YY cut plane Side sectional view of the transmission switching mechanism in a state where the operation unit and the urging mechanism unit are separated. Conceptual diagram of urging mechanism section according to modification

[First Embodiment]
Hereinafter, the sliding door apparatus 10 which concerns on 1st Embodiment of this invention is demonstrated based on FIGS. This embodiment is the first embodiment (paragraphs [0067] to [0138]) of the previous application publication (Japanese Patent Laid-Open No. 2011-84889) or the patent publication (Japanese Patent No. 4497428) filed by the present applicant. The “door open / close urging device” according to the present invention is added to the slide door device 10 described in 1 above. First, the configuration other than the door opening / closing biasing device will be described. However, since these configurations are the same as those described in the above publication, only a brief description will be given in this document.

  FIG. 1 shows the entire sliding door device 10. The slide door device 10 includes a rail assembly 30 and a slide door 12 that is suspended from the rail assembly 30 and slides. The sliding door 12 has a closed end position (left end position in FIG. 1) in which the opening 91 formed in the vertical wall 90 is fully closed, and an open end position (right end position in FIG. 1) in which the opening 91 is fully opened. ) And the opening 91 can be opened and closed.

  The rail assembly 30 is attached to the vertical wall 90 and extends along the upper side of the opening 91 and its extension line. Of the upper side of the sliding door 12, when the sliding door 12 is slid in the closing direction (left direction in FIG. 1), the door front end 12A positioned on the front side and the opposite door bottom end 12B have a door hanger 20A. , 20B are attached. The door hangers 20A and 20B are provided with main doors 21A and 21B, respectively. The main doors 21A and 21B can run on the upper edge portions of the first guide rail 61 and the second guide rail 62 in the rail assembly 30. It has become.

  Hereinafter, for the convenience of explanation, the door stop 92 side with which the door tip 12A abuts in the sliding direction of the slide door 12 is referred to as “front side in the sliding direction” as appropriate, and the door stop with which the door end 12B abuts. The 93 side is appropriately referred to as “the rear side in the sliding direction”. When the door hangers 20A and 20B are distinguished from each other, the door hanger 20A provided at the door tip 12A is referred to as a “door-end door hanger 20A”, and the door hanger 20B provided at the door butt end 12B is referred to as “door butt”. It is called “door hanger 20B”. Further, when distinguishing the main door carts 21A and 21B, the main door cart 21A provided in the door-end door hanger 20A is referred to as “door-end main door cart 21A” and the main door cart 21B provided in the door-end door hanger 20B is referred to as “door”. It is called “Ass main trolley 21B”.

  The rail assembly 30 has a first guide rail 61 disposed on the front side in the sliding direction, a second guide rail 62 disposed on the rear side in the sliding direction, and a second guide rail 62 disposed on the rear side in the sliding direction with respect to the band-shaped fixed base 31. A cam slider 65 disposed below the first and second guide rails 61 and 62 is assembled, and the fixed base 31 is fixed to the vertical wall 90.

  As shown in FIG. 2, the first guide rail 61 and the second guide rail 62 are shifted in the horizontal direction by the distance between the door main door car 21A and the door bottom main car door 21B. While the door main main wheel 21A travels on the first guide rail 61, the door bottom main door 21B travels on the second guide rail 62 (see FIG. 4).

  The first and second guide rails 61 and 62 are supported on the fixed base 31 by rail support shafts 36 and 36 at the center in the longitudinal direction, respectively, and tilt in a seesaw shape about the rail support shafts 36 and 36. It is possible. Cam followers 63 and 63 are provided at both ends of the first and second guide rails 61 and 62, respectively.

  The cam slider 65 has a strip shape extending in the sliding direction of the slide door 12, and its upper side is a cam that is in sliding contact with the cam followers 63 and 63. The cam slider 65 can reciprocate in the horizontal direction in conjunction with the sliding operation of the slide door 12.

  That is, when the sliding door 12 performs a sliding operation, the sliding movement of the sliding door 12 causes the cam slider 65 to move in the same direction as the sliding direction of the sliding door 12. When the cam slider 65 moves linearly, the postures of the first and second guide rails 61 and 62 that are cam-coupled with the cam slider 65 are changed between “open guide tilt posture” and “closed guide tilt posture”. Specifically, as shown in FIG. 4, when the slide door 12 is positioned at the closed end position, the first and second guide rails 61 and 62 are lowered to the rear side in the sliding direction “open guide tilt posture”. As shown in FIG. 5, when the slide door 12 is positioned at the open end position, the first and second guide rails 61 and 62 are in the “closed guide inclined posture” lowered to the front side in the sliding direction.

  The sliding operation of the sliding door 12 in the opening direction is as follows. That is, the slide door 12 (in the fully closed state) positioned at the “closed end position” shown in FIG. 2 passes through the “automatic opening operation start position” and the “open end side posture change position”, and then passes to FIG. The “open end position” shown is reached. When the sliding door 12 is moved from the “closed end position” to the “automatic opening operation start position” near the closed end position, the holding force for holding the slide door 12 at the “closed end position” is released, The sliding door 12 automatically moves from the “automatic opening operation start position” to the “opening end position” by the downward inclination and inertia force of the first and second guide rails 61 and 62 in the open guide inclination posture. To do. That is, the manual operation is required in the section from the “closed end position” to the “automatic opening operation start position”. When the “automatic opening operation start position” is exceeded, the slide is automatically slid in the opening direction.

  Here, during the period from the “closed end position” to the “open end position change position” of the slide door 12, the cam slider 65 is in the closed end position (shown in FIGS. 2 and 3A) in its linear motion range. The first and second guide rails 61 and 62 are held in the “open guide inclined posture”. The cam slider 65 is pushed by the slide door 12 until the slide door 12 reaches the “open end position” from the “open end side posture change position” near the open end, and the open end position (see FIG. 3 (B). Then, the first and second guide rails 61 and 62 are switched from the “open guide inclined posture” shown in FIG. 4 to the “closed guide inclined posture” shown in FIG. That is, the posture of the guide rails 61 and 62 for the next closing operation is changed using the inertial force of the sliding door 12 that automatically slides in the opening direction. Then, the slide door 12 that has reached the “open end position” (becomes fully opened) is held so as not to automatically move from the open end position.

  The sliding operation of the sliding door 12 in the closing direction is as follows. That is, the slide door 12 located at the “open end position” (full open state) shown in FIG. 5 passes through the “automatic closing operation start position” and the “closed end side posture change position”, and the “closed end position” shown in FIG. To "position". When the sliding door 12 is moved from the “open end position” to the “automatic closing operation start position” near the open end position, the holding force for holding the slide door 12 at the “open end position” is released, The slide door 12 automatically moves from the “automatic closing operation start position” to the “closed end position” by the downward inclination and inertial force of the first and second guide rails 61 and 62 in the closed guide inclination posture. To do. In other words, the manual operation is required in the section from the “open end position” to the “automatic closing operation start position”, and when it exceeds the “automatic closing operation start position”, it automatically slides in the closing direction.

  Here, during the period from the “open end position” to the “closed end position change position” of the slide door 12, the cam slider 65 is at the open end position (position shown in FIG. 3B) in its linear movement range. It arrange | positions and the 1st and 2nd guide rails 61 and 62 are hold | maintained at a "closed guide inclination attitude | position." The cam slider 65 is pushed by the slide door 12 until the slide door 12 reaches the “closed end position” from the “closed end position change position” close to the closed end position. Move to the position shown in FIG. Then, the first and second guide rails 61 and 62 are switched from the “closed guide inclined posture” shown in FIG. 5 to the “open guide inclined posture” shown in FIG. 4. That is, the posture of the guide rails 61 and 62 for the next opening operation is changed using the inertial force of the sliding door 12 that automatically slides in the closing direction. Then, the slide door 12 that has reached the “closed end position” (becomes fully closed) is held so as not to automatically move from the closed end position.

  Next, the door opening / closing urging device and the configuration related thereto in the sliding door device 10 will be described. As shown in FIG. 2, the door-end protrusion 24A and the door-end protrusion 24B protrude from the door-end door hanger 20A and the door-end door hanger 20B in the horizontal direction perpendicular to the sliding direction of the slide door 12, respectively. Yes. The door end protrusion 24A and the door bottom protrusion 24B have a structure in which a roller is supported on a horizontal rotation shaft.

  As shown in FIG. 10, the door end protrusion 24A and the door bottom protrusion 24B linearly move in the sliding direction of the slide door 12, and the linear movement areas SA and SB are on the same straight line and in the sliding direction with a space therebetween. Are arranged so as to be symmetric (hereinafter referred to as “lateral symmetry”). When the sliding door 12 is in a fully closed state (when positioned at the closed end position), the door tip protrusion 24A and the door bottom protrusion 24B are arranged at the front end positions SA1 and SB1 of the linear motion areas SA and SB, and slide. When the door 12 is in a fully open state (when located at the open end position), the door tip protrusion 24A and the door bottom protrusion 24B are arranged at the rear end positions SA2 and SB2 of the linear motion areas SA and SB.

  As shown in FIG. 1, a remote control device for operating an urging mechanism 71 described below at a position away from the slide door 12 (specifically, a wall surface or floor near the opening 91). 40 is fixed. The remote operation device 40 includes an operation unit 42 operated by a user of the slide door 12 and a base unit 41 for fixing the operation unit 42 to a fixed object. The operation unit 42 is configured by, for example, a push button or a lever handle that can be moved from the start position to the end position with a predetermined stroke, and is configured to automatically return from the end position to the start position. ing. The operating force applied to the operation unit 42 is transmitted to the biasing mechanism unit 71 disposed above the slide door 12 via the wire 43.

  As shown in FIG. 1, the urging mechanism 71 is disposed in the vicinity of the middle portion of the sliding door 12 in the sliding direction (longitudinal direction of the rail assembly 30), and is located above the opening 91 of the vertical wall 90 via the bracket 72. It is fixed on the wall. As shown in FIG. 7, the bracket 72 includes a fixed wall portion 72A fixed to the vertical wall 90, a front wall portion 72B disposed in front of the fixed wall portion 72A, a fixed wall portion 72A, and a front wall portion 72B. It is comprised from the ceiling wall part 72C which connected the upper ends of. The ceiling wall part 72C is disposed above the moving area of the door hangers 20A and 20B, and the front wall part 72B is disposed in front of the moving area of the door hangers 20A and 20B. The front wall portion 72B is formed with a substantially T-shaped central opening 72D that is open in the front-rear direction and downward, and in the state where the central opening 72D is straddling the left and right in the center of the lower side of the front wall portion 72B. A character-shaped hinge guide 73 is attached. Specifically, both the protruding pieces 73A and 73A protruding left and right of the hinge guide 73 are screwed to the front surface of the front wall portion 72B.

  A long hole 73 </ b> C extending in the vertical direction is formed through the protruding piece 73 </ b> B protruding upward in the hinge guide 73. The elongated hole 73C extends on the center of symmetry of the front lever 75 and the rear lever 76 that are arranged symmetrically, and faces the central opening 72D of the front wall 72B. The upper hinge support shaft 74 is inserted inside the long hole 73C in a state of being prevented from coming off, and can move up and down within the range of the long hole 73C.

  A wire 43 extending from the operation unit 42 is connected to the upper hinge support shaft 74. The wire 43 is routed over the wall surface of the vertical wall 90, and the ceiling wall portion 72C of the bracket 72 has a lead-in opening 72E for drawing the end of the wire 43 into the bracket 72 and the lead-in opening 72E. And a plurality of pulleys 72F for guiding the wire 43 (see FIG. 7). When the operation unit 42 is operated, the wire 43 is pulled to the operation unit 42 side, and the upper hinge support shaft 74 is configured to move upward in the elongated hole 73C.

  The front lever 75 and the rear lever 76 are configured by long plates having the same shape, and are inclined so as to be separated from each other obliquely downward. Further, the front lever 75 and the rear lever 76 are disposed on the back surface side of the front wall portion 72B of the bracket 72, and the upper hinge shafts of which the upper end portions pass through the central opening 72D and the long hole 73C. 74 is rotatably connected. The end of the wire 43 drawn inside the bracket 72 is connected to the upper hinge support shaft 74.

  A lower end portion of the front lever 75 is rotatably connected to a front end portion of the front support lever 77 by a rotation support shaft 75J. A lower end portion of the rear lever 76 is connected to the rear support lever by a rotation support shaft 76J. The front end of 78 is rotatably connected. The front support lever 77 and the rear support lever 78 extend in opposite directions from a lower hinge support shaft 73J disposed vertically below the upper hinge support shaft 74. Specifically, both base ends of the front support lever 77 and the rear support lever 78 overlap on the back side of the protrusion 73E protruding downward in the hinge guide 73, and the lower side penetrating the protrusion 73E. The base ends of the front support lever 77 and the rear support lever 78 are rotatably connected by the hinge support shaft 73J. The urging mechanism 71 includes a front lever 75, a rear lever 76, a front support lever 77, and a rear support lever 78 that are rotatably connected to each other.

  As shown in FIG. 10, the urging mechanism 71 is disposed between the linear motion region SA of the door tip projection 24A and the linear motion region SB of the door bottom projection 24B. When the sliding door 12 is in the fully closed state (closed end position), the door butt protrusion 24B located at the front end position SB1 of the linear motion region SB is adjacent to or abuts on the rear lever 76 of the urging mechanism portion 71. On the other hand, when the slide door 12 is fully opened (open end position), the door-end protrusion 24A located at the rear end position SA2 of the linear motion region SA is adjacent to or abuts on the front lever 75 of the urging mechanism 71.

  Specifically, the upper surface of the front lever 75 is a front contact inclined surface 75A that is inclined so as to be lowered toward the front side in the sliding direction, and the upper surface of the rear lever 76 is directed toward the rear side in the sliding direction. The rear contact inclined surface 76A is inclined so as to be lowered. The front contact inclined surface 75A and the rear contact inclined surface 76A are always inclined so as to be separated from each other obliquely downward.

  The door opening / closing urging device applies a closing urging force for closing the fully opened slide door 12 from the front lever 75 of the urging mechanism 71 to the door tip protrusion 24A by operating the operation unit 42. An opening biasing force for opening the slide door 12 in the fully closed state is applied from the rear lever 76 of the biasing mechanism portion 71 to the door butt protrusion 24B. Hereinafter, the operation of the door opening / closing biasing device will be described in detail.

  The operation other than the door opening / closing biasing device (rail assembly 30 or the like) is described in detail in the above-mentioned application publications or patent publications (Japanese Patent Application Laid-Open No. 2011-84889 and Japanese Patent No. 4497428). Description is omitted.

  When the slide door 12 is in the fully open state (open end position) and the operation unit 42 is not operated, the biasing mechanism unit 71 is stopped at the initial position shown in FIG. At this time, the front contact inclined surface 75A of the front lever 75 is adjacent to or comes into contact with the door-end protrusion 24A located at the rear end position SA2 of the linear motion region SA from obliquely below. When the operation unit 42 is operated in this state, the wire 43 is pulled toward the operation unit 42, and the upper hinge support shaft 74 is pulled up from the lower end of the long hole 73C as shown in the change from FIG. 8 to FIG. Then, the front lever 75 and the rear lever 76 constituting the urging mechanism portion 71 rotate symmetrically so as to cause the respective inclination angles of the front contact inclined surface 75A and the rear contact inclined surface 76A. The whole of the front lever 75 and the rear lever 76 moves upward. Specifically, the rotation support shafts 75J and 76J move upward and symmetrically on the same arc around the lower hinge support shaft 73J, and center on the moving rotation support shafts 75J and 76J. The front lever 75 and the rear lever 76 rotate symmetrically so as to cause respective inclination angles of the front contact inclined surface 75A and the rear contact inclined surface 76A.

  In this process, the front contact inclined surface 75A of the front lever 75 enters the rear end position SA2 of the linear movement area SA of the door tip protrusion 24A, and the rear contact inclined surface 76A of the rear lever 76 is It enters the front end position SB1 of the linear motion region SB of the door bottom protrusion 24B.

  When the slide door 12 is in the fully open state, the door butt protrusion 24B is disposed at the rear end position SB2 of the linear motion region SB, so that the rear lever 76 and the door butt protrusion 24B do not contact each other. On the other hand, since the door tip protrusion 24A is disposed at the rear end position SA2 of the linear motion region SA into which the front lever 75 enters, the front contact inclined surface 75A contacts the door tip protrusion 24A, A closing biasing force for closing the slide door 12 from the fully open state is applied to the door tip protrusion 24A. The door-end protrusion 24A moves obliquely downward on the front contact inclined surface 75A while receiving the closing biasing force, and the sliding door 12 moves from the open end position to at least the automatic closing operation start position by the closing biasing force. To do.

  Here, of the front lever 75, the rotation support shaft 75J is the “rotation support point”, and the connecting portion with the upper hinge support shaft 74 is the “force point” to which the operation force from the operation unit 42 is applied, and the front contact. The contact position with the door-end protrusion 24A on the inclined surface 75A can be considered as an “action point” that applies a closing biasing force to the door-end protrusion 24A. The force points are arranged such that the power point distance, which is the distance between the pivot fulcrum and the force point, is always larger than the maximum value of the action point distance, which is the distance between the rotation fulcrum and the action point. That is, it is possible to apply a closing biasing force larger than the operating force applied to the front lever 75 to the door-end protrusion 24A.

  Moreover, the action point which gives the closing biasing force to the door end protrusion 24A moves so as to approach the rotation fulcrum from a position near the power point. That is, while the force point distance is constant, the action point distance gradually decreases in the course of operation, so the ratio of the closing biasing force to the operating force applied to the front lever 75 (the boosting action of the lever) is It can be gradually raised in the process of operation.

  Further, the pivot point of the front lever 75 is always located obliquely downward with respect to the action point moving on the front contact inclined surface 75A. The contact between the protrusion 24A and the front contact inclined surface 75A is maintained. As a result, the operating force applied to the front lever 75 can be reliably applied to the door end protrusion 24A as a closing biasing force.

  When the slide door 12 is in the fully closed state (closed end position) and the operation portion 42 is not operated, the rear contact inclined surface 76A of the rear lever 76 is located at the front end position SB1 of the linear motion region SB. Adjacent to or abuts the bottom protrusion 24B from obliquely below. When the operation unit 42 is operated in this state, as described above, the front lever 75 and the rear lever 76 are moved to the left and right so that the respective inclination angles of the front contact inclined surface 75A and the rear contact inclined surface 76A are raised. While rotating symmetrically, the entire front lever 75 and rear lever 76 move upward. The front contact inclined surface 75A of the front lever 75 enters the rear end position SA2 in the linear motion region SA of the door tip protrusion 24A, and the rear contact inclined surface 76A of the rear lever 76 is The protrusion 24B enters the front end position SB1 in the linear motion region SB.

  When the slide door 12 is in the fully closed state, the door-end protrusion 24A is disposed at the front end position SA1 of the linear motion area SA, so the front lever 75 and the door-end protrusion 24A do not come into contact with each other. On the other hand, since the door butt protrusion 24B is disposed at the front end position SB1 of the linear motion region SB into which the rear lever 76 enters, the rear contact inclined surface 76A contacts the door butt protrusion 24B. Then, an opening biasing force for opening the slide door 12 from the fully closed state is applied to the door butt protrusion 24B. The door butt protrusion 24B moves obliquely downward on the rear abutting inclined surface 76A while receiving an opening biasing force, and the sliding door 12 moves from the closed end position to at least the automatic opening operation start position by the opening biasing force. Moving.

  Here, of the rear lever 76, the pivot support shaft 76J is a “rotation fulcrum”, and the connecting portion with the upper hinge support shaft 74 is a “force point” to which an operation force is applied from the operation section 42, and the rear side. The contact position with the door butt protrusion 24B on the contact inclined surface 76A can be considered as an “action point” for applying an opening biasing force to the door butt protrusion 24B. The force points are arranged such that the power point distance, which is the distance between the pivot fulcrum and the force point, is always larger than the maximum value of the action point distance, which is the distance between the rotation fulcrum and the action point. That is, it is possible to apply an opening urging force larger than the operation force applied to the rear lever 76 to the door butt protrusion 24B.

  Moreover, the action point which gives an opening urging | biasing force to the door butt protrusion 24B moves so that it may approach a rotation fulcrum from the position near a power point. That is, while the force point distance is constant, the action point distance gradually decreases in the course of operation, so the ratio of the opening biasing force to the operating force applied to the rear lever 76 (the boosting action of the lever) is , Can be gradually raised in the process of operation.

  Further, the pivot point of the rear lever 76 is arranged so as to be always located obliquely downward with respect to the action point moving on the rear contact inclined surface 76A. The contact between the door bottom protrusion 24B and the rear contact inclined surface 76A is maintained. As a result, it is possible to reliably apply the operating force applied to the rear lever 76 to the door butt protrusion 24B as an open biasing force.

  As described above, according to the present embodiment, a closing biasing force larger than the operating force applied from the operation unit 42 to the front lever 75 can be applied to the door-end protrusion 24A, and the rear lever is operated from the operation unit 42. Since the opening urging force larger than the operation force applied to 76 can be applied to the door butt protrusion 24B, the sliding door 12 can be opened and closed with a relatively light force, and the operability is improved. Can be planned.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 11 and 12. The second embodiment is different from the first embodiment in the configuration of the biasing mechanism portion 71. Since other configurations are the same as those in the first embodiment, a duplicate description is omitted.

  As shown in FIG. 11, a substantially T-shaped hinge guide 73 is attached to the center of the lower side of the front wall portion 72 </ b> B of the bracket 72, and the center of symmetry of the front lever 82 and the rear lever 83 is attached to the hinge guide 73. A long hole 73 </ b> C extending in the vertical direction is formed through therethrough. A relay hinge support shaft 79 is inserted inside the elongated hole 73 </ b> C in a state of being prevented from coming off, and the operation portion 42 is connected to the relay hinge support shaft 79 via a wire 43. Further, the relay hinge support shaft 79 rotatably connects the lower end portions of the front relay lever 86 and the rear relay lever 87 that extend obliquely upward on the back surface side of the hinge guide 73 (see FIG. 12).

  A front lever 82 and a rear lever 83 are attached to the left and right sides of the hinge guide 73 symmetrically. The front lever 82 and the rear lever 83 have a substantially triangular plate shape, and are rotatable about rotation support shafts 82J and 83J arranged at one corner thereof. The rotation support shafts 82J and 83J are fixed to the front wall portion 72B. In addition, the front end portion of the front lever 82 that is obliquely separated from the rotation support shaft 82J and the upper end portion of the front relay lever 86 are overlapped and connected to each other by the connection support shaft 86J. Similarly, in the rear lever 83, a tip portion that is obliquely separated from the rotation support shaft 83J and an upper end portion of the rear relay lever 87 are overlapped and connected to each other by the connection support shaft 87J. .

  The upper surface of the front lever 82 is a front contact inclined surface 82A that is lowered to the front side in the sliding direction so that the door-end protrusion 24A can contact. Further, the upper surface of the rear lever 83 is a rear abutting inclined surface 83A that is lowered to the rear side in the sliding direction so that the door butt protrusion 24B can abut.

  The front lever 82 is a "rotation fulcrum" for the rotation support shaft 82J, a "power point" to which an operating force is applied to the connection portion with the connection support shaft 86J, and the door-end protrusion 24A on the front contact inclined surface 82A. Can be considered as an “action point” for applying a closing biasing force to the door-end protrusion 24A, and the positional relationship among these “rotation fulcrum”, “force point”, and “action point” is as described above. This is the same as the front lever 75 of the embodiment. Further, the rear lever 83 has a “rotation fulcrum” as the rotation support shaft 83J, a “force point” to which an operating force is applied to the connecting portion with the connection support shaft 87J, and a door bottom on the rear contact inclined surface 83A. The contact position with the protrusion 24B can be considered as an “action point” for applying an opening biasing force to the door butt protrusion 24B, and the positional relationship between these “rotation fulcrum”, “force point”, and “action point” is This is the same as the rear lever 76 of the first embodiment.

  The front lever 82 and the rear lever 83 are formed with arc holes 82B and 83B extending concentrically with the respective rotation support shafts 82J and 83J, and the arc holes 82B and 83B are formed through the arc holes 82B and 83B. A screw N1 that fixes the hinge guide 73 to the front wall 72B is inserted.

  An auxiliary front lever 84 and an auxiliary rear lever 85 are attached to the left and right sides of the front wall portion 72B of the bracket 72 with the front lever 82 and the rear lever 83 interposed therebetween. The auxiliary front lever 84 and the auxiliary rear lever 85 have the same shape of a band plate, and are arranged symmetrically at the symmetry center of the front lever 82 and the rear lever 83. The auxiliary front lever 84 and the auxiliary rear lever 85 rotate around the rotation support shafts 84J and 85J, and the rotation support shafts 84J and 85J are fixed to the front wall portion 72B of the bracket 72. The rotation support shaft 84J of the auxiliary front lever 84 is disposed on the front side in the slide direction with respect to the rotation support shaft 82J of the front lever 82. Further, the rotation support shaft 85J of the auxiliary rear lever 85 is disposed on the rear side in the sliding direction with respect to the rotation support shaft 83J of the rear lever 83.

  Of the auxiliary front lever 84 and the auxiliary rear lever 85, elongated holes 84N and 85N extending in the longitudinal direction are formed at the distal ends of the auxiliary supporting levers 84J and 85J, respectively. An engagement pin 82P protrudes from an intermediate portion of the front lever 82 between the pivot support shaft 82J and the connection support shaft 86J toward the auxiliary front lever 84, and the engagement pin 82P is a long hole of the auxiliary front lever 84. 84N is movably engaged. Further, an engagement pin 83P protrudes from the intermediate portion of the rear lever 83 between the rotation support shaft 83J and the connection support shaft 87J toward the auxiliary rear lever 85, and the engagement pin 83P is the auxiliary rear side. The lever 85 is movably engaged with the elongated hole 85N. Thereby, the front lever 82 and the auxiliary front lever 84 can be rotated in the same direction in conjunction with each other, and the rear lever 83 and the auxiliary rear lever 85 can be rotated in the same direction in conjunction with each other. ing.

  Further, the auxiliary front side lever 84 and the auxiliary rear side lever 85 are such that the auxiliary front side contact inclined surface 84A and the auxiliary rear side contact inclined surface 85A constituted by the upper surfaces thereof are always separated from each other obliquely downward. It is inclined to. Specifically, the auxiliary front contact inclined surface 84A is gently lowered to the front side in the sliding direction than the front contact inclined surface 82A, and the upper end portion of the auxiliary front contact inclined surface 84A is intermediate between the front contact inclined surface 82A. It is arranged to cross the part. Further, the auxiliary rear side contact inclined surface 85A is gently lowered to the rear side in the sliding direction than the rear side contact inclined surface 83A, and the upper end portion of the auxiliary rear side contact inclined surface 85A is the rear side contact inclined surface. It arrange | positions so that the intermediate part of the surface 83A may be crossed. And the urging | biasing mechanism part 71 of this embodiment is comprised by said each lever 82-87 connected so that rotation was mutually possible.

  The configuration of the urging mechanism 71 of the present embodiment is as described above, and the operation will be described next. When the operation unit 42 is not operated, the levers 82 to 87 constituting the biasing mechanism unit 71 are stopped at the initial position shown in FIG. 11 by their own weight. That is, the relay hinge support shaft 79 is disposed at the lower end portion of the long hole 73C, and the front lever 82, the rear lever 83, the auxiliary front lever 84, and the auxiliary rear lever 85 are disposed at the initial positions of the respective rotation ranges. The

  When the operation portion 42 is not operated in the fully open state (open end position) of the slide door 12, the front contact abutment inclined surface 82A of the front lever 82 abuts against the door end protrusion 24A of the slide door 12 from obliquely below, An auxiliary front-side abutting inclined surface 84A of the auxiliary front-side lever 84 is disposed adjacently below the door-end protrusion 24A (see FIG. 11). When the operation unit 42 is operated in this state, the wire 43 is pulled toward the operation unit 42, and the relay hinge support shaft 79 is pulled up in the long hole 73C. Then, as shown in the change from FIG. 11 to FIG. 12, the front relay lever 86 and the rear relay lever 87 rotate symmetrically about their lower end portions (relay hinge support shaft 79) and are substantially rotated. The front lever 82 and the rear lever 83 are pivoted symmetrically about the pivot shafts 82J and 83J so as to be V-shaped and pushed up by the front relay lever 86 and the rear relay lever 87. Further, following the front lever 82 and the rear lever 83, the auxiliary front lever 84 and the auxiliary rear lever 85 rotate symmetrically about the rotation support shafts 84J and 85J. That is, the levers 82 to 85 are rotated so as to cause the respective inclination angles of the front contact inclined surface 82A, the auxiliary front contact inclined surface 84A, the rear contact inclined surface 83A, and the auxiliary rear contact inclined surface 85A. .

  Then, the front lever 82 and the auxiliary front lever 84 enter the rear end position SA2 of the linear movement area SA of the door tip protrusion 24A, and the rear lever 83 and the auxiliary rear lever 85 are connected to the door bottom protrusion 24B. It enters the front end position SB1 of the linear motion region SB.

  When the slide door 12 is fully open, the door butt protrusion 24B is disposed at the rear end position SB2 of the linear motion region SB, so that the rear lever 83, the auxiliary rear lever 85, and the door butt protrusion 24B are in contact with each other. There is no contact. On the other hand, since the door-end protrusion 24A is disposed at the rear end position SA2 of the linear movement area SA into which the front lever 82 has entered, the front-side contact inclined surface 82A comes into contact with the door-end protrusion 24A and is fully opened. A closing biasing force for closing the sliding door 12 in the state is applied to the door-end protrusion 24A.

  The door-end protrusion 24A moves on the front contact inclined surface 82A while receiving a closing biasing force so as to approach the rotation support shaft 82J from the connection support shaft 86J. It moves onto the inclined surface 84A and further moves on the auxiliary front contact inclined surface 84A so as to approach the rotation support shaft 84J while receiving the closing biasing force. Then, the sliding door 12 moves from the open end position to at least the automatic closing operation start position by the closing biasing force received by the door tip protrusion 24A from the front contact inclined surface 82A and the auxiliary front contact inclined surface 84A. Here, the closing biasing force is applied from the front lever 82 to the door-end protrusion 24A only at the initial movement when the stationary slide door 12 starts moving in the fully opened state, and after starting to some extent, the auxiliary front lever 84 opens the door. A closing biasing force is applied to the leading protrusion 24A. The above is the operation when the operation unit 42 is operated in the fully opened state.

  When the operating portion 42 is not operated when the sliding door 12 is in the fully closed state (closed end position), the rear abutting inclined surface 83A of the rear lever 83 contacts the door butt protrusion 24B of the sliding door 12 from obliquely below. The auxiliary rear side contact inclined surface 85A of the auxiliary rear lever 85 is disposed adjacent to the lower part of the door butt protrusion 24B. When the operation unit 42 is operated in this state, as shown in the change from FIG. 11 to FIG. 12, the levers 82 to 87 constituting the biasing mechanism unit 71 rotate from their initial positions at the respective rotation centers.

  Then, the front lever 82 and the auxiliary front lever 84 enter the rear end position SA2 of the linear movement area SA of the door tip protrusion 24A, and the rear lever 83 and the auxiliary rear lever 85 are connected to the door bottom protrusion 24B. It enters the front end position SB1 of the linear motion region SB.

  When the sliding door 12 is in the fully closed state, the door-end protrusion 24A is disposed at the front end position SA1 of the linear motion area SA, so that the front lever 82 and the auxiliary front lever 84 and the door-end protrusion 24A come into contact with each other. There is no. On the other hand, since the door butt protrusion 24B is disposed at the front end position SB1 of the linear motion region SB into which the rear lever 83 enters, the rear abutting inclined surface 83A of the rear lever 83 has the door butt protrusion. An opening urging force for opening the fully closed slide door 12 is applied to the door butt protrusion 24B in contact with 24B.

  Further, the door bottom protrusion 24B moves on the rear contact inclined surface 83A so as to approach the rotation support shaft 83J from the connection support shaft 87J while receiving an opening biasing force, and the auxiliary rear lever 85 is moved halfway along the way. It moves to the auxiliary rear side contact inclined surface 85A and further moves on the auxiliary rear side contact inclined surface 85A so as to approach the rotation support shaft 85J while receiving an opening biasing force. Then, the sliding door 12 moves from the closed end position to at least the automatic opening operation start position by the opening biasing force received by the door butt protrusion 24B from the rear contact inclined surface 83A and the auxiliary rear contact inclined surface 85A. Here, the opening biasing force is applied from the rear lever 83 to the door butt protrusion 24B only at the initial movement when the slide door 12 that is stationary in the fully closed state starts moving. An opening biasing force is applied from the lever 85 to the door butt protrusion 24B. The above is the operation when the operation unit 42 is operated in the fully closed state.

  Also according to the present embodiment, the same effects as those of the first embodiment can be obtained. Here, in general, the static friction force applied until the stationary object starts to move is larger than the dynamic friction force applied to the moved object, and therefore, when the slide door 12 is first moved, the operation resistance may be felt particularly large. On the other hand, according to the present embodiment, when the sliding door 12 that is stationary in the fully open state or the fully closed state is initially moved, the front-side contact inclined surface 82A and the rear-side contact inclined surface 83A that are relatively greatly inclined are the doors. The auxiliary front abutting inclined surface 84A and the auxiliary rear abutting inclined surface 85A, which have a gentle inclination after being brought into contact with the front projecting portion 24A and the door bottom projecting portion 24B (applying a biasing force) and starting to some extent, are provided with the door. Since the first protrusion 24A and the door bottom protrusion 24B are brought into contact with each other (the biasing force is applied), it is possible to make it difficult to feel the operation resistance at the time of the initial movement when the sliding door 12 is opened and closed.

[Third Embodiment]
In the first embodiment and the second embodiment described above, for example, after operating the operation unit 42 from the start position to the end position and sliding the slide door 12 in the opening direction, the operation unit 42 is continuously held at the end position. In this case, the door protrusion 24A of the slide door 12 interferes with the front lever 75 or the auxiliary front lever 84 before the open end position, and the slide door 12 does not fully open (open end position). obtain. Similarly, when the operation unit 42 is operated and the slide door 12 is slid in the closing direction and then the operation unit 42 is continuously held at the end position, the door-butt projection 24B of the slide door 12 is moved to the closed end position. A situation may occur in which the slide door 12 does not become fully closed (closed end position) by coming into contact with the rear lever 76 or the auxiliary rear lever 85 before this.

  In order to prevent such a situation, the door opening / closing urging device according to the present embodiment always transmits the operating force between the operation unit 42 and the urging mechanism unit 71, while the operation unit 42 reaches the end position. A transmission switching mechanism 50 is provided that interrupts transmission of an operating force between the operation unit 42 and the biasing mechanism unit 71 when operated. In the following description, the door opening / closing urging device of the first embodiment will be described by exemplifying the case where the transmission switching mechanism 50 of the present embodiment is combined. However, the door opening / closing urging device of the second embodiment will be described. In addition, the transmission switching mechanism 50 described below may be combined.

  The transmission switching mechanism 50 includes a horizontally long box-shaped fixed body 51 extending in the sliding direction of the slide door 12, and the fixed body 51 is fixed to the vertical wall 90 in a horizontal state parallel to the rail assembly 30. In the fixed body 51, the input side shaft 52 penetrates through one end wall 51A in the longitudinal direction so that the input side shaft 52 can move linearly, and the output side shaft 55 penetrates through the other end part wall 51B. A hook 53 is attached to an end portion of the input side shaft 52 arranged inside the fixed body 51, and a driven member 56 is attached to an end portion of the output side shaft 55 arranged inside the fixed body 51. ing. As shown in FIG. 13, the hook 53 and the driven member 56 are always connected, and at this time, it is possible to transmit the operation force to the operation unit 42 to the biasing mechanism unit 71.

  The connection end 52A of the input side shaft 52 opposite to the hook 53 and the connection end 55A of the output side shaft 55 opposite to the driven member 56 are disposed outside the fixed body 51, respectively. An operation unit 42 is connected to the connection end 52 </ b> A of the input side shaft 52 via a wire 43. The input side shaft 52 and the hook 53 operate integrally with the operation unit 42, and directly move from the start end position shown in FIG. 13 (A) to the end position shifted to the operation unit 42 side as shown in FIG. 14 (A). Move.

  An urging mechanism portion 71 (relay hinge support shaft 79) is connected to the connection end 55A of the output side shaft 55 via a wire 43. The output side shaft 55 and the driven member 56 operate integrally with the urging mechanism portion 71 and are shifted from the starting end position shown in FIG. 13 (A) to the operation portion 42 side as shown in FIG. 14 (A). Move straight to position.

  As shown in FIG. 13A, a compression coil spring 54 is loosely fitted to the outside of the input side shaft 52, and both ends of the compression coil spring 54 are connected to the base end portion of the hook 53 and the fixed body 51. It abuts against the one end wall 51A.

  A proximal end portion of the hook 53 is connected to the input side shaft 52 so as to be rotatable. Specifically, the engagement position shown in FIG. 13 (A) and the engagement release position shown in FIG. 14 (A) are centered on a horizontal axis orthogonal to the linear movement direction of the hook 53 and the input side shaft 52. It is possible to rotate between them. A hook claw 53A that protrudes downward is formed at the tip of the hook 53, and a mountain-shaped (triangular) cam protrusion 53B that protrudes downward is formed on the base end side of the hook claw 53A. In addition, a round bar-like cam pin 51P is passed in a horizontal direction perpendicular to the linear motion direction of the hook 53, and the hook 53 can be slid on the upper side of the cam pin 51P. Is arranged. The cam protrusion 53B and the cam pin 51P correspond to the “hook guide” of the present invention.

  As shown in FIG. 13, a compression coil spring 57 is loosely fitted to the outside of the output side shaft 55, and both end portions of the compression coil spring 57 are connected to a flange portion 55 </ b> B provided at the output end 55 </ b> A and the fixed body 51. It is abutted against the other end wall 51B.

  The driven member 56 has a structure in which a hooking rod 56B is inserted between both side walls facing the horizontal direction of the gate-shaped part 56A (see FIG. 13A), and the hooking rod 56B and the claw 53A are engaged and disengaged. It is possible. That is, the claw 53A and the hooking rod 56B are always engaged in the linear movement direction of the hook 53 and the driven member 56, and the hook 53 linearly moves from the start position to the end position, and the cam projection 53B. When the cradle rides on the cam pin 51P, the hook 53 rotates upward, and the claw 53A is disengaged from the hooking rod 56B.

  When the operation unit 42 is operated from the start end position to the end position when the slide door 12 is in the fully closed state (closed end position), the input shaft 52 and the output side are connected with the hook 53 and the driven member 56 connected. The shaft 55 linearly moves integrally from the start end position shown in FIG. 13 (A) to the end position shown in FIG. 14 (A). As a result, as described in the first embodiment, the upper hinge support shaft 74 is pulled upward, the front lever 75 and the rear lever 76 rotate symmetrically, and the door bottom projection 24B is moved from the rear lever 76. In response to the opening urging force, the slide door 12 moves in the opening direction (see FIG. 9).

  The hook 53 and the driven member 56 are kept connected while they move to the end position (while the slide door 12 moves to the automatic opening operation start position), and when they reach the end position (when the automatic opening operation start position is exceeded). ) The connection is released. That is, the cam projection 53B of the hook 53 rides on the cam pin 51P, the engagement between the claw 53A and the hooking rod 56B is released, and the transmission of the operation force between the operation unit 42 and the biasing mechanism unit 71 is interrupted. . Then, the output side shaft 55 and the driven member 56 are pulled toward the biasing mechanism portion 71 by the elastic force of the compression coil spring 57 and the weight of the biasing mechanism portion 71 and returned to the starting end position shown in FIG. The front lever 75 and the rear lever 76 of the urging mechanism 71 are returned to the initial positions (positions shown in FIG. 8). This prevents the sliding door 12 that has slid in the opening direction from interfering with the front lever 75 just before the open end position (automatic closing operation start position). That is, even when the operation unit 42 is operated to open the slide door 12 in the fully closed state and is held at the terminal position as it is, the slide door 12 can be in the fully open state (reached to the open end position), It is possible to prevent the sliding door 12 from stopping at a halfway position. Then, when the operation of the operation unit 42 is stopped, the operation unit 42 returns to the start end position, and the elastic force of the compression coil spring 54 returns the input side shaft 52 and the hook 53 to the start end position. The returned driven member 56 and the hook 53 are reconnected. That is, it becomes possible to transmit the operating force from the operation unit 42 to the biasing mechanism unit 71.

  When the operation unit 42 is operated from the start end position to the end position when the slide door 12 is in the fully open state (open end position), the input side shaft 52 and the output side shaft 55 are moved from the start end position shown in FIG. It moves directly to the end position shown in FIG. As a result, as described in the first embodiment, the upper hinge support shaft 74 is pulled upward, the front lever 75 and the rear lever 76 rotate symmetrically, and the door-end protrusion 24A is closed from the front lever 75. The sliding door 12 moves in the closing direction under the urging force.

  The hook 53 and the driven member 56 are kept connected while they move linearly to the end position (while the slide door 12 moves to the automatic closing operation start position), and when they reach the end position (the automatic closing operation start position is set). If it exceeds, the connection is released as described above, and the transmission of the operation force between the operation unit 42 and the biasing mechanism unit 71 is interrupted. Then, the output side shaft 55 and the driven member 56 are pulled by the biasing mechanism portion 71 due to the elastic force of the compression coil spring 57 and the weight of the biasing mechanism portion 71, and return to the starting end position as shown in FIG. The front lever 75 and the rear lever 76 of the urging mechanism 71 are returned to the initial positions. Thereby, it is avoided that the slide door 12 slid in the closing direction interferes with the rear lever 76 before the closed end position (automatic opening operation start position). That is, even when the operation unit 42 is operated to close the slide door 12 in the fully open state and is held at the terminal position as it is, the slide door 12 can be in the fully closed state (reached to the closed end position). Then, when the operation of the operation unit 42 is stopped, the operation unit 42 returns to the starting end position, and the input side shaft 52 and the hook 53 are returned to the starting end position by the elastic force of the compression coil spring 54. The driven member 56 and the hook 53 that have been returned to are reconnected. That is, it becomes possible to transmit the operating force from the operation unit 42 to the biasing mechanism unit 71.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

  (1) In the first embodiment, the rotation support shafts 75J and 76J, which are the rotation fulcrums of the front lever 75 and the rear lever 76, are movable. However, as shown in FIG. 75J and 76J may be fixed. At this time, as shown in FIG. 16A, the front lever 75 and the rear lever 76 may be pulled by the common wire 43, and as shown in FIG. The rear lever 76 may be pulled by a separate wire 43.

  When the front lever 75 and the rear lever 76 are pulled by the common wire 43, elongated holes 75 </ b> B and 76 </ b> B are formed in the front lever 75 and the rear lever 76, respectively, and the hinge support shaft connected to the wire 43 is formed. 81 may be passed through the long holes 75B and 76B in a retaining state, and the upper ends of the front lever 75 and the rear lever 76 may be pivotally connected to each other.

  Here, in the first embodiment, since the entire front lever 75 and rear lever 76 move upward, compared to the modification shown in FIG. Increasing the distance that the slide door 12 moves in the state where the inclined surface 75A is in contact and the distance that the slide door 12 moves in the state where the door bottom protrusion 24B and the rear contact inclined surface 76A are in contact. Can do.

  (2) In the second embodiment, the lever constituting the urging mechanism 71 includes the auxiliary front lever 84 and the auxiliary rear lever 85. However, the auxiliary front lever 84 and the auxiliary rear lever 85 are not provided. Without providing, the levers constituting the urging mechanism 71 may be the four levers of the front lever 82, the rear lever 83, the front relay lever 86, and the rear relay lever 87.

  (3) In the first and second embodiments, the front contact inclined surfaces 75A and 82A and the rear contact inclined surfaces 76A and 83A are inclined surfaces extending linearly between the upper end portion and the lower end portion. Although it was configured, it may be configured by an arc-shaped inclined surface that swells in a bow shape between the upper end portion and the lower end portion, or an arc-shaped inclined surface that is recessed in a bow shape between the upper end portion and the lower end portion . Further, the auxiliary front-side contact inclined surface 84A and the auxiliary rear-side contact inclined surface 85A may be configured by similar arc-shaped inclined surfaces.

  (4) In the first and second embodiments, the door opening / closing urging device of the present invention is applied to the slide door device 10 in which the pair of guide rails 61 and 62 are switched between the closed guide inclined posture and the open guide inclined posture. However, the door opening / closing biasing device of the present invention may be applied to a general sliding door device.

  (5) In the first and second embodiments, the urging mechanism 71 is arranged at the upper end of the slide door 12. However, the urging mechanism 71 is installed together with the door tip protrusion 24A and the door bottom protrusion 24B. You may arrange | position in the lower end part of the slide door 12, or the intermediate part of an up-down direction.

12 sliding door 12A door front end 12B door bottom end 24A door tip protrusion 24B door bottom protrusion 42 operation section 50 transmission switching mechanism 53 hook 56 driven member 71 urging mechanism section 73 hinge guide 73J lower hinge support shaft 74 upper side Hinge support shaft 75 Front lever 75A Front contact inclined surface 76 Rear lever 76A Rear contact inclined surface 77 Front support lever 78 Rear support lever 79 Relay hinge support shaft 82 Front lever 82A Front contact inclined surface 83 Rear lever 83A Rear side contact inclined surface 84 Auxiliary front side lever 84A Auxiliary front side contact inclined surface 85 Auxiliary rear side lever 85A Auxiliary rear side contact inclined surface 86 Front side relay lever 87 Rear side relay lever 90 Vertical wall 91 Opening

Claims (6)

A door comprising an urging mechanism portion disposed in the vicinity of an intermediate portion in the sliding direction in a moving area of a sliding door that opens and closes an opening provided in a vertical wall, and an operation portion for operating the urging mechanism portion. An opening and closing biasing device,
When the sliding door is slid in the closing direction, the door tip protrusion and the door edge protrusion are respectively in the horizontal direction perpendicular to the sliding direction from the door front end located on the front side and the door bottom end on the opposite side. When the sliding door is fully closed, the door bottom protrusion is adjacent to or abuts on the rear side of the urging mechanism, while the urging mechanism is not fully open when the sliding door is fully opened. The door tip protrusion is adjacent to or abuts on the front side, and an opening biasing force for opening the slide door in the fully closed state is applied from the biasing mechanism portion to the door bottom protrusion by the operation of the operation portion. On the other hand, in the door opening and closing urging device for applying a closing urging force for closing the slide door in the fully opened state from the urging mechanism part to the door-end protrusion,
The biasing mechanism portion is provided with a front lever and a rear lever that are arranged in the sliding direction and rotate symmetrically by operation of the operation portion,
The front lever and the rear lever are inclined so as to be separated from each other obliquely downward, and the inclination angle is changed to the side caused by the operation of the operation portion, and the door tip protrusion and the door bottom protrusion are A front abutting inclined surface and a rear abutting inclined surface for applying the opening urging force and the closing urging force are formed;
The rotation fulcrum of the front lever is disposed at a position that is always obliquely downward with respect to the point of application to the door protrusion that moves on the front contact inclined surface, and the rotation fulcrum of the front lever Place the pivot point of the rear lever in a symmetrical position,
A distance between the rotation fulcrum and the action point is a force point distance that is a distance between the rotation fulcrum of the front lever and the rear lever and a force point to which an operation force is applied from the operation unit. The door opening / closing urging device, wherein the force point is arranged to be larger than a maximum value of the acting point distance. The front lever and the rear lever are extended in a direction inclined with respect to the vertical direction, and their upper ends are connected to each other by an upper hinge pivot so as to be rotatable.
A front support lever and a rear support lever that are rotatably supported by a lower hinge support shaft disposed below the upper hinge support shaft and extend away from each other are provided, and the front support lever and the rear support lever are provided. A lower end portion of the front lever and the rear lever is rotatably connected to each tip portion of the lever,
The lower hinge support shaft is fixed to the vertical wall, while the upper hinge support shaft is supported by a hinge guide fixed to the vertical wall so as to be movable up and down, and the upper hinge support shaft is supported by the operation unit. The door opening / closing urging device according to claim 1, wherein the operating force is applied as an upward force. A relay hinge support shaft supported so as to be movable up and down on the symmetry center of the front lever and the rear lever;
A front relay lever and a rear relay lever, which are supported at the lower end of the relay hinge spindle so as to be rotatable and extend obliquely upward,
The upper end of the front relay lever is pivotally connected to the front lever, while the upper end of the rear relay lever is pivotally connected to the rear lever. The door opening / closing urging device according to claim 1, wherein the door opening / closing urging device is provided to the front lever and the rear lever via the relay hinge support shaft, the front relay lever, and the rear relay lever. . The front abutment has a rotation fulcrum at a position away from the center of symmetry of the front lever and the rear lever from the rotation fulcrum of the front lever, and is gently inclined forward and downward from the front abutting inclined surface. It has an auxiliary front abutting inclined surface to which the door-end protrusion is transferred from the inclined surface, and rotates so that the auxiliary front abutting inclined surface is raised by receiving the operation force of the operation unit from the front lever An auxiliary front lever to
The rear fulcrum has a pivot fulcrum at a position away from the center of symmetry of the front lever and the rear lever, and the rear lever inclines gently and rearwardly lower than the rear abutting inclined surface. An auxiliary rear abutting inclined surface from which the door butt protrusion is transferred from the side abutting inclined surface, and the auxiliary rear abutting inclined surface is raised by receiving an operating force of the operating portion from the rear lever. The door opening / closing urging device according to any one of claims 1 to 3, further comprising an auxiliary rear lever that rotates as described above. The operation unit is capable of reciprocating between a start position and an end position,
The urging mechanism unit and the operation unit are connected to each other while the operation unit is moved from the start end position to the end position, and the operation force of the operation unit is transmitted to the urging mechanism unit. 5. A transmission switching mechanism is provided, wherein when the terminal position is reached, a transmission switching mechanism that is in a shut-off state and does not transmit the operation force of the operation unit to the biasing mechanism unit is provided. The door opening and closing biasing device according to claim. The transmission switching mechanism operates integrally with the operation unit and linearly moves from the start end position to the end position, and has an engagement position and an engagement release position about a rotation axis orthogonal to the linear movement direction. A hook that pivots between,
A driven member that operates integrally with the urging mechanism unit and linearly moves from the start position to the end position;
While the hook is linearly moved from the start position to the end position, the hook is held in the engagement position so that the hook can be linearly moved integrally with the driven member. The door opening / closing urging device according to claim 5, further comprising a hook guide that guides to an engagement release position and releases engagement with the driven member.

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