JP2014101669A - Runner structure for sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a runner structure for a sliding door in which a closing speed of the sliding door is reduced just before a closing position.SOLUTION: A runner structure for a sliding door comprises a tapered part 15a for guiding a rotary damper 38 to a timing bar 15 so as to move the rotary damper 38 to an active side when moving the sliding door in a closing direction. In the case where a damper link 36 is positioned farther in an opening direction than the tapered part 15a, the rotary damper 38 is positioned at an inactive side and a relation between the rotary damper 38 and a rack member 14 is canceled. When the sliding door is moved in the closing direction and the damper link 36 reaches the tapered part 15a, the sliding door is moved in the closing direction, the damper link 36 is moved along the tapered part 15a, the rotary damper 38 suppresses rotation of the gear member 32, and the sliding door 13 is moved to a closing position slowly.

Description

  The present invention relates to a sliding door runner structure that supports a sliding door so that the opening can be opened and closed and biases it to a closed position, and more particularly to a sliding door runner structure having a sliding door deceleration function immediately before the closed position in a self-closing operation. It is.

Conventionally, sliding doors are sometimes used to open and close openings such as doorways between rooms in a house.
Such a sliding door is supported by a runner structure including a guide roller that travels along a guide rail provided along the upper edge of the opening, for example.
The sliding door opens or closes the opening when the guide roller travels along the guide rail and moves toward one or both sides of the opening.
And in order to improve operativity at the time of opening and closing of a sliding door, the self-closing type sliding door provided with the self-closing means which moves an opened sliding door to a closed position automatically is known.
Such self-closing sliding doors can be used for self-closing without supplying energy from the outside by, for example, using a spring or installing the guide rail at a low angle on the closed position side. can do.

  In such a self-closing sliding door, the sliding door is automatically closed. Therefore, in the self-closing operation of the sliding door, if the sliding door immediately starts to close from the open position, the operator may collide with the sliding door without passing through the opening completely, and the sliding door has the same closing speed. When the door reaches the closed position, the sliding door hits the door frame, and noise due to impact is generated. For example, inadvertent finger pinching or the like may occur between the door frame and the sliding door, resulting in unexpected injury.

On the other hand, there is already known a sliding door in which the sliding door is stopped at the fully open position.
According to the sliding door having such a temporary stop function, since the sliding door is locked in the fully open position by fully opening the sliding door, there is no need to keep the sliding door down when a person passes through the opening, It is possible to pass through the opening slowly and safely.
However, since the sliding door is locked only in the fully open position, when it is desired to lock the sliding door when it is opened, the sliding door must always be opened to the fully open position. If it is not operated in the closing direction, there is a problem that the closing of the sliding door by the self-closing means is not started.

On the other hand, Patent Document 1 discloses a self-closing type sliding door unit in which the sliding door is stopped at an arbitrary open position.
According to this self-closing type sliding door unit, when the sliding door is operated to open against the self-closing force of the self-closing means and stopped halfway at any open position, a self-closing force is generated and the guide member is moved to the middle stop position. By shifting, the sliding door is stopped at a midway position, and this midway stop is maintained.

JP 2005-054483 A

However, in the self-closing type sliding door unit according to Patent Document 1, the halfway stop of the sliding door stopped halfway is maintained as it is. Therefore, when closing the sliding door, it is necessary to operate the sliding door once in the closing direction and shift the guide member from the halfway stop position so that the sliding door can be moved in the closing direction by the self-closing means. Becomes complicated.
Moreover, in the closing operation of the sliding door, the closing operation is performed at the same closing speed until the closing position is reached. Therefore, the impact due to the collision with the door frame at the time of closing, the possibility of pinching of fingers, etc. has not been solved.

  In view of the above points, an object of the present invention is to provide a sliding door runner structure that reduces the closing speed of a sliding door immediately before the closing position in a self-closing operation of the sliding door with a simple configuration.

  According to the configuration of the present invention, the above object is achieved by a guide roller that runs in a longitudinal direction along a guide rail provided on one upper edge or lower edge of a door frame or door plate of a sliding door, and the other of the door frame or door plate. A unit member fixed to an upper end or a lower end and connected to a guide roller, and a rack member and a timing bar provided in parallel with the guide rail. The unit member is connected to the case member and the case member. When the rotary shaft is located on the non-operating side, the relationship with the rack member is released when the rotary shaft is located on the non-operating side. A rotary damper urged to the operating side by the urging member, and a link member having one end in contact with the timing bar and the other end connected to the rotary damper. The bar is provided with a tapered portion that guides the timing bar to move the rotary damper to the operating side when the sliding door is moved in the closing direction. When the link member is positioned in the opening direction from the tapered portion, the rotary damper is provided. Is located on the non-operating side, the relationship between the rotary damper and the rack member is released, and when the sliding door moves in the closing direction and the link member reaches the tapered portion, the link member operates according to the guidance of the tapered portion. When the rotary damper is moved to the operating side and the rotary damper is related to the rack member, a load is applied to the movement of the sliding door in the closing direction, and the link member is positioned in the closing direction from the taper portion. The sliding door runner is characterized in that the rotary damper is located on the operating side and the load is continuously applied to the movement of the sliding door in the closing direction. The structure, is achieved.

  In the sliding door runner structure according to the present invention, the tapered portion is preferably provided at the end of the timing bar on the sliding door closing side.

  In the sliding door runner structure according to the present invention, preferably, the unit member is rotatably supported by the case member and has a gear member that meshes with the rack member. The rotary damper includes a rotary damper portion, and the rotary damper portion. The rotary damper is related to the rack member by engaging the gear portion with the gear member when the rotary damper moves to the operating side.

  In the sliding door runner structure according to the present invention, preferably, the link member is swingably supported by the case member via a rotation shaft positioned between one end and the other end, and the rotation shaft of the rotary damper is provided at the other end. The rotary shaft of the rotary damper is disposed in a slot provided in the case member.

  In the sliding door runner structure according to the present invention, the urging member is preferably an elastic member provided between the link member and the case member.

  According to the said structure, the door plate of a sliding door is suspended so that opening and closing is possible with respect to a door frame in the upper part or the lower part, when a guide roller engages a guide rail. The sliding door is automatically moved to the closed position and stopped when the case member is urged in the closing direction by the urging means, and the opening is automatically closed.

  Here, when the sliding door moves toward the closed position, when the sliding door approaches the closed position, one end of the link member comes off from the end on the closed side of the timing bar via the tapered portion, and the rotary damper is moved. It moves to the operating side by the biasing member. Accordingly, the rotary damper is related to the rack member, and the relative movement with the rack member is suppressed, whereby the sliding door closing speed is reduced.

  On the other hand, when the sliding door is opened from the closed position, the sliding door moves in the opening direction, and immediately after the opening operation starts, one end of the link member contacts the tapered portion provided at the end on the timing bar closing side. By contacting and guiding along the inclined surface of the tapered portion, the rotary damper moves to the non-operating side against the urging force of the urging member via the link member. Thereby, the relationship between the rotary damper and the rack member is released. Therefore, at this time, deceleration by the rotary damper is not performed, and the sliding door moves in the opening direction as it is.

That is, when the sliding door is opened, the sliding door can be easily opened by moving the rotary damper to the non-operating side.
On the other hand, when the sliding door is closed, the sliding door is automatically closed by the biasing means, and when the sliding door reaches just before the closing position, one end of the link member is detached from the timing bar, so that the rotary damper is Move to working side. As a result, the rotary damper is related to the rack member, a load is applied by the damping action of the rotary damper, the closing speed of the sliding door is reduced, and the sliding door moves to the closing position at a low speed.
Here, the timing of the deceleration start during the self-closing operation of the sliding door can be arbitrarily set according to the installation position of the timing bar with respect to the guide rail.

  Thus, according to the present invention, it is possible to provide a sliding door runner structure in which the closing speed of the sliding door is reduced immediately before the closing position in the self-closing operation of the sliding door with a simple configuration.

It is a schematic perspective view which shows the whole structure of the self-closing type sliding door incorporating one Embodiment of the runner structure for sliding doors by this invention. It is an enlarged plan view which shows the guide rail in the runner structure for sliding doors of FIG. It is a left view which expands and shows the guide rail of FIG. It is a front view which shows the whole structure of the rack provided in the guide rail of FIG. 2, and a timing bar. It is an expansion perspective view which shows the guide roller in the runner structure for sliding doors of FIG. It is a disassembled perspective view which shows the guide roller of FIG. It is a partially broken front view which shows the structure of the runner structure for sliding doors integrated in the self-closing type sliding door of FIG. It is a left view of the runner structure for sliding doors of FIG. It is a disassembled perspective view which shows the runner structure for sliding doors of FIG. It is a partially broken front view which shows the runner structure for sliding doors of FIG. 1 at the time of a damper action | operation. It is a schematic front view which shows the unit member of the runner structure for sliding doors of FIG. 1 at the time of a temporary stop function start. It is a schematic front view which shows the unit member of the runner structure for sliding doors of FIG. 1 at the time of a temporary stop function action | operation. It is a schematic front view which shows the unit member of the runner structure for sliding doors of FIG. 1 at the time of a temporary stop function completion | finish. It is a schematic front view which shows the inside of the runner structure for sliding doors of FIG. 1 of the state adjusted to the lower limit position of an up-down direction. It is a schematic front view which shows the inside of the runner structure for sliding doors of FIG. 1 of the state adjusted to the upper limit position of an up-down direction. It is a schematic perspective view which shows the construction state which incorporates a sliding door in a door frame using the runner structure for sliding doors of FIG. It is a schematic front view which shows the construction state in FIG.

FIG. 1 shows a state in which an embodiment of a sliding door runner structure according to the present invention is incorporated in a sliding door.
In FIG. 1, a sliding door runner structure 10 moves a sliding door (door plate) 13 in a longitudinal direction (X direction) along a guide rail 12 provided on an upper edge of a door frame 11 of an opening provided in a building or the like. The guide roller 20 travels along the guide rail 12 and a unit member 30 attached to the upper end of the sliding door 13 and connected to the guide roller 20.

Here, as shown in FIGS. 2 and 3, the guide rail 12 is made of, for example, a long aluminum material having a hollow cross section, and the lower portion in the Z direction is open, as shown in FIG. 3. In this way, the lower edge of one side (the rear side in the case of the drawing) perpendicular to the longitudinal direction is folded inward to form a rail portion 12a whose tip is directed upward. Yes.
As shown in FIG. 3, the guide rail 12 includes a rack member 14 and a timing bar 15 that extend in the longitudinal direction along the front side of the guide rail 12.

As shown in FIG. 4, the rack member 14 is disposed over substantially the entire length of the guide rail 12, and rack teeth 14 a having a predetermined pitch are formed on the lower edge thereof. In the case of illustration, the rack member 14 is divided into a plurality of parts in the length direction, and is continuously arranged by abutting the end portions.
Here, as shown in FIG. 3, the rack member 14 is engaged with the guide rail 12 by engaging the engaging portion 14 b provided on the upper side with the engaging groove 12 b provided on the upper edge of the guide rail 12. In contrast, it is held over its entire length. Thereby, the rack member 14 is held in a stable state with respect to the guide rail 12 over its entire length.

As shown in FIG. 4, the timing bar 15 is disposed from a position separated by a predetermined distance L from the end portion (left end in the case of illustration) of the guide rail 12 on the sliding door closing direction (X1 direction) side. The region near the left end is provided with a tapered portion 15a formed to be inclined upward toward the left end. In the case of illustration, the timing bar 15 is divided into a plurality of parts in the length direction, and the end portions are abutted and connected via the connecting portion 15b, so that the bottom surface is continuous. Two aspects are defined. The overall length of the timing bar 15 is about half of the entire length of the guide rail 12, and by adjusting the predetermined distance L, it is possible to adjust the brake application position. In addition, when the timing bar 15 is completely moved to the end of the guide rail 12 on the sliding door opening direction (X2 direction) side (the right end in the case of illustration), the tapered portion 15a is substantially at the center of the entire length of the guide rail 12. In this case, the brake is always applied to the movement of the door in the closing direction. Even in this case, since the entire length of the timing bar 15 falls within half of the guide rail 12 on the sliding door opening direction (X2 direction) side, there is no need to cut the timing bar 15.
Here, as shown in FIG. 3, the timing bar 15 is configured such that the engaging portion 15 c provided on the upper side engages with the engaging groove 14 c provided on the rack member 14, whereby the rack member 14 and the guide rail 12. Is held against. Thereby, the timing bar 15 is held in a stable state with respect to the guide rail 12 via the rack member 14 over the entire length thereof.

  Further, the engaging groove 14 c of the rack member 14 and the engaging portion 15 c of the timing bar 15 include a latch mechanism (not shown) in the longitudinal direction (X direction), and the timing bar 15 is connected to the rack member 14. Thus, the position can be adjusted in the longitudinal direction (X direction).

As shown in FIGS. 5 and 6, the guide roller 20 includes a support shaft block 21, a support portion 22 arranged so as to be movable in the X direction and the Z direction within the support shaft block body 21, and a support portion 22. On the other hand, it has a wheel 24 attached to an axle 23 extending laterally (Y direction).
The spindle block body 21 is molded from a plastic material such as POM (polyacetal) and has a hollow, substantially rectangular parallelepiped outer shape that is open at the top. As will be described later, the shaft block body 21 is in a recessed portion provided in the unit member 30. It is detachably attached to the unit member 30 from the locking piece 21c.

The support portion 22 is formed of SPCC (rolled steel plate) or ZDC (zinc die cast) material, and is inserted into the support block body 21 from the open upper portion of the support block body 21, and from the support block body 21. A mounting hole 22a for the axle 23 is provided in a portion protruding upward.
Furthermore, the support part 22 has the diagonal slot 22b extended upward toward the closed side of a sliding door in the part inserted in the spindle block body 21. As shown in FIG.
On the other hand, slots 21b extending horizontally in the longitudinal direction are formed in the front and rear wall portions of the support shaft block body 21.
A pin 25 extending so as to penetrate the support block 21 in the front-rear direction is inserted into the oblique slot 22b of the support portion 22, the horizontal slot 21b of the support block 21, and the horizontal slot 26b of the reinforcing plate 26. An adjusting screw 21a is screwed into the screw hole drilled in.
As described above, the support portion 22 can be moved and adjusted in the vertical direction as the support block body 21 moves in the longitudinal direction. By rotating the adjustment screw 21a forward and backward, 25 moves in each slot which is a long hole, and the support part 22 moves up and down in the spindle block body 21 along with this, and is fixed at the adjusted position.

The support block 21 has a front wall, a right side wall, and a rear wall reinforced by a reinforcing plate 26 made of a metal material such as SPCC (rolled steel plate).
Further, as shown in FIG. 6, the spindle block body 21 includes a locking piece 21 c that extends to the left on the lower surface, and when the locking piece 21 c is inserted into the recessed portion of the unit member 30, By engaging with a locking portion (not shown) provided in the recessed portion, the locking portion is locked in the recessed portion, and by pushing up the tip of the locking piece 21c, the engagement with the locking portion is released. It has come to be.

  The wheel 24 is disposed rearward from the center of the support block body 21, and rolls on the rail portion 12a with so-called single wheel support by riding on the rail portion 12a provided rearward of the guide rail 12. To do.

The unit member 30 includes a case member 31, a gear member 32, and a base member 33 as shown in FIGS. 7, 8 and 9.
As shown in FIG. 9, the case member 31 swings around a first case member 34 attached to the upper end of the sliding door 13 and a rotation center axis 34 a extending in the Y direction with respect to the first case member 34. It has the 2nd case member 35 supported so that it was possible, and the damper link 36 attached to the 2nd case member 35. FIG.

The first case member 34 includes two parts, that is, a first part 34b and a second part 34c, and a guide member 34d.
The first portion 34 b includes a recessed portion 34 e that receives the support block body 21 of the guide roller 20.
The second portion 34c has a bottom portion and both side walls located on both sides in the longitudinal direction, and receives the second case member 35 in a space defined by these both side walls.

Here, the second portion 34c swings around the rotation center shaft 34a in the vicinity of the end in the sliding door closing direction X1, and the opposite side is supported so as to be movable in the vertical direction (Z direction).
The first portion 34b and the second portion 34c are combined with each other and fixed to form an integrated first case member 34.

Further, the guide member 34d has both side walls projecting from the second portion 34c to the sliding door opening side, and the both side walls sandwich the second case member 35 from both sides so that the second case member Acts as a guide when 35 swings.
The guide member 34d is also integrated as a first case member 34 with respect to the first portion 34b and the second portion 34c.

Similarly, the second case member 35 has a bottom portion and both side walls, and receives the gear member 32, the base member 33, and the damper link 36 between the both side walls.
Here, the second case member 35 has a sliding door opening direction by a compression spring 37 provided between the contact portion 35a provided below the end of the sliding door closing direction X1 and the first case member 34. It is biased towards X2. Thereby, the second case member 35 swings around the rotation center axis 34a, and the entire second case member 35 is urged upward in the Z direction.

The damper link 36 is supported so as to be swingable around the rotation center axis 34 a of the first case member 34, and one arm portion 36 a faces upward so that the arm portion 36 a can come into contact with the lower surface of the timing bar 15. The other arm portion 36b supports the rotary shaft of the rotary damper 38 via the pedestal portion 38d.
Further, the damper link 36 is biased toward the sliding door opening direction X2 by the biasing spring 36c, thereby imparting left-turning performance in FIG.
When the unit member 30 moves in the sliding door opening direction X2, one arm portion 36a of the damper link 36 slides along the tapered portion 15a of the timing bar 15, so that the timing bar 15 can be smoothly moved. It is guided to the lower surface and comes into contact with the lower surface of the timing bar 15.

The rotary damper 38 includes a damper portion 38a and a gear portion 38b that is coaxial with and integrated with the damper portion 38a.
The damper portion 38a acts to suppress the rotation of the gear portion 38b.
Here, when one arm portion 36a of the damper link 36 is in contact with the lower surface of the timing bar 15, the gear portion 38b does not mesh with the gear member 32 and the arm portion 36a as shown in FIG. Is located in a portion where the timing bar 15 is not provided, the damper link 36 is urged by the urging spring 36c, so that the gear portion 38b meshes with the gear member 32 as shown in FIG. To do.
The rotary shaft 38c of the rotary damper 38 is disposed in arc-shaped slots 34f provided on both side walls of the second portion 34c of the first case member 34, thereby swinging the damper link 36. Accordingly, it is moved smoothly.

  The gear member 32 is rotatably supported around a shaft body 32a extending in the Y direction at an upper portion near the center in the longitudinal direction of the second case member 35, and its teeth 32b are attached to the guide rail 12. The gear member 32 is engaged with the rack teeth 14 a of the rack member 14, and the gear member 32 rotates as the unit member 30 moves in the longitudinal direction (X direction).

  The gear member 32 is pressed against the rack member 14 of the guide rail 12 by the second case member 35 being biased upward in the Z direction by the action of the compression spring 37. As a result, the gear member 32 always reliably meshes with the rack teeth 14a of the rack member 14 even if the rack member 14 is distorted or misaligned due to an assembly error.

Further, a spring case 32 c is integrally attached to the gear member 32. A mainspring (spiral spring; not shown) is incorporated in the mainspring case 32c, and the sliding door is moved in the sliding door opening direction X2, and the gear member 32 rotates and moves along the rack member 14, whereby the gear. The spring is wound up by the rotation of the member 32, and the gear member 32 is reversely rotated by the restoring force of the spring, whereby the sliding door is automatically moved in the sliding door closing direction X1.
Here, the mainspring case 32c is formed in a flat cylindrical shape whose outer shape is centered on the shaft body 32a.

The shaft body 32 a of the gear member 32 is fixed to the gear member 32 and is supported with respect to both side walls of the second case member 35. The shaft body 32a has a cross section of a regular polygon, for example, a regular hexagon, in the vicinity of the center of the shaft, and is sandwiched between clip members 32d.
As a result, the shaft body 32a is prevented from idling only by the spring restoring force described above due to the clamping force of the clip member 32d.

As shown in FIG. 11, the base member 33 is formed in an arc shape along the lower part of the mainspring case 32 c integrated with the gear member 32, and the end portion on the sliding door closing direction X1 side is , And is supported so as to be swingable around a rotation center shaft 33a extending in the Y direction.
The end of the base member 33 on the sliding door opening direction X2 side is urged upward by a damper 39.
The urging force of the damper 39 is selected so that the load applied to the free roller 40 described later is smaller than the restoring force of the mainspring.

A free roller 40 is disposed between the mainspring case 32 c and the base member 33.
The free roller 40 rolls in the gap between the mainspring case 32 c and the base member 33 as the gear member 32 and the mainspring case 32 c rotate. At that time, since the base member 33 is urged by the damper 39 in the direction approaching the mainspring case 32c, the free roller 40 receives a load due to a predetermined friction during rolling.
A pair of regulating rollers 33b and 33c are provided in an area near the end of the base member 33 on the sliding door opening direction X2 side. These regulating rollers 33b and 33c are pivotally supported with respect to the base member 33 by lateral rotation shafts 33d and 33e extending in the Y direction, respectively.
Here, the opening-side regulating roller 33b is arranged near the end of the base member 33 on the sliding door opening side, and the closing-side regulating roller 33c is arranged closer to the rotation center shaft 33a than the opening-side regulating roller 33b. Has been.
The base member 33 is tapered so that the curved surface facing the mainspring case 32c gradually decreases from the opening-side regulating roller 33b toward the closing-side regulating roller 33c. Has been.

Thereby, when the sliding door moves in the sliding door opening direction X2, the gear member 32 rotates counterclockwise in FIG. 7 to wind up the mainspring, and with the counterclockwise rotation of the mainspring case 32c, the free roller 40 The base member 33 is rotated clockwise against the urging force of the damper 39 to widen the gap between the base member 33 and the mainspring case 32c, and between the base member 33 and the mainspring case 32c, an opening-side regulating roller Roll toward 33b.
Then, as shown in FIG. 11, when the free roller 40 rides on the opening-side regulating roller 33 b, the opening-side regulating roller 33 b can freely rotate, so that the free roller 40 idles. The gear member 32 can also rotate freely.

When the movement of the sliding door in the opening direction is stopped from this state, the gear member 32 is rotated to the right by the restoring force of the mainspring housed in the mainspring case 32c. As shown, the space between the mainspring case 32c and the base member 33 rolls toward the closing regulating roller 33c.
At that time, the free roller 40 is held between the mainspring case 32c and the base member 33 by the urging force of the damper 39, so that a load is applied, so that rolling is suppressed and the free roller 40 rotates at a low speed. become.
Here, by appropriately adjusting the urging force of the damper 39, the rotational speed of the free roller 40, the mainspring case 32c, the gear member 32, and the moving speed in the closing direction of the sliding door by the restoring force of the mainspring are set. The required time during which the free roller 40 moves from the open-side regulating roller 33b to the closed-side regulating roller 33c can be arbitrarily set.

Then, as shown in FIG. 13, when the free roller 40 rolls and rides on the closed side regulation roller 33c, the free side roller 40 is idled because the closed side regulation roller 33c can freely rotate. The gear member 32 can also rotate freely.
In this way, the free roller 40 rolls between the regulating rollers 33b and 33c as the sliding door is opened and closed.

The sliding door runner structure 10 according to the present invention is configured as described above and operates as follows.
First, when the sliding door 13 is in the closed state, as shown in FIG. 10, one arm portion 36 a of the damper link 36 of the unit member 30 is located on the sliding door closing side of the timing bar 15. The gear member 38 b of the rotary damper 38 is engaged with the gear member 32 by being rotated clockwise by the tension of the bias spring 36 c.
At this time, as shown in FIG. 13, the free roller 40 idles due to riding on the restriction roller 33 c on the closed side.

When the operator moves the sliding door 13 in the sliding door opening direction X2 from such a closed state, the gear member 32 that meshes with the rack member 14 rotates counterclockwise as the sliding door 13 opens. At this time, with the rotation of the gear member 32, the mainspring in the mainspring case 32c is wound up, and the free roller 40 rolls between the mainspring case 32c and the base member 33 toward the open side.
When the free roller 40 rides on the opening-side regulating roller 33b by the further rotation of the gear member 32, the free roller 40 idles.
When one arm portion 36a of the damper link 36 reaches the taper portion 15a of the timing bar 15, the one arm portion 36a of the damper link 36 is pushed down according to the taper portion 15a to resist the tension of the biasing spring 36c. Turn right. As a result, the gear portion 38 b of the rotary damper 38 is separated from the gear member 32.
In this way, the sliding door 13 is opened.

Here, when the operator stops moving the sliding door 13 in the opening direction and releases the hand, the gear member 32 tries to rotate right due to the restoring force of the mainspring in the mainspring case 32c. When 40 receives a load between the mainspring case 32c and the base member 33 by the frictional force generated by the urging of the damper 39, it slowly rolls toward the regulating roller 33c on the closing side.
At this time, the moving speed of the sliding door 13 toward the closing side due to the rotation of the gear member 32 is extremely slow, and thus it is observed that it is temporarily stopped.

When the free roller 40 rides on the closed regulation roller 33c after a predetermined time, the free roller 40 idles. As a result, the gear member 32 is not subjected to a load from the free roller 40, and thus rotates at a high speed by the restoring force of the mainspring, and the sliding door 13 moves at a high speed in the closing direction.
Thereafter, when the sliding door 13 approaches the closed position and one arm portion 36a of the damper link 36 reaches the vicinity of the end on the closing side of the timing bar 15 and moves along the tapered portion 15a, the damper link 36 is attached. Since the pivoting is performed based on the tension of the bias spring 36c, the gear portion 38b of the rotary damper 38 is engaged with the gear member 32 as shown in FIG.
At this time, the damper portion 38 a of the rotary damper 38 suppresses the rotation of the gear member 32. Accordingly, the gear member 32 is rotated by the restoring force of the mainspring, and at that time, the gear member 32 is rotated slowly. Thereby, the sliding door 13 will move to a closed position slowly at low speed.

Thus, when the sliding door 13 is opened, the free roller 40 rolls from the position where the free roller 40 rides on the closing restriction roller 33c to the position where the free roller 40 rides on the opening restriction roller 33b. Here, even when the sliding door 13 is opened to an arbitrary position on the way, the free roller 40 surely rides on the opening-side regulating roller 33b.
When the sliding door 13 is stopped open, the free roller 40 slowly rolls between the mainspring case 32c and the base member 33, so that the gear member 32 also rotates at a low speed. Observed as if paused at the open stop position.
Therefore, even if the operator does not fully open the sliding door 13, even if the operator opens the sliding door 13 to an arbitrary halfway open position and releases his / her hand from the sliding door 13, the sliding door 13 is apparently temporarily at the halfway open position. Since the operation stops, the operator can slowly pass through the opening in which the sliding door 13 is installed without using the sliding door 13 and freely using both hands.

After that, when the predetermined time has elapsed and the free roller 40 rides on the restriction roller 33c on the closed side, the free roller 40 idles. As a result, the gear member 32 rotates at a high speed by the restoring force of the mainspring, so that the sliding door 13 moves in the closing direction at a high speed along the guide rail 12 automatically, that is, without any operation by the operator. .
When the sliding door 13 approaches the closed position, one arm portion 36a of the damper link 36 is detached from the timing bar 15 through the taper portion 15a, so that the damper link 36 rotates and the gear portion 38b of the rotary damper 38 is moved. The gear member 32 meshes with the gear member 32 to brake the rotation of the gear member 32. Therefore, the gear member 32 rotates slowly and moves to the closed position at a low speed when a load is applied to the sliding door 13. Thereby, since it becomes low speed in the final stage which the sliding door 13 closes, even if the finger pinching etc. at the time of closing of the sliding door 13 generate | occur | produce, the impact by the sliding door 13 becomes small.

Here, depending on the installation accuracy of the opening in which the door frame 11 is installed, when the sliding door 13 is attached to the door frame 11, the gap between the upper edge of the sliding door 13 and the lower edge of the door frame 11 varies. There are things to do.
As described above, the case member 31 constituting the unit member 30 includes the first case member 34 and the second case member 35, and the second case member 35 becomes the first case member 34. The second case member 35 can be adjusted in the vertical direction by being supported so as to be swingable.
Thereby, since the second case member 35 is biased upward based on the tension of the compression spring 37, the gear member 32 always meshes with the rack member 14.

FIG. 14 shows the upper limit position in the vertical direction of the second case member 35.
In FIG. 14, the second case member 35 swings around the rotation center axis 34 a with respect to the first case member 34, and moves as a whole to the upper limit position. The distance between the upper edge of the first case member 34 and the lower end of the guide rail 12 is D1.
At this time, the gear member 32 supported by the second case member 35 moves upward together with the second case member 35, thereby being reliably engaged with the rack member 14.
The damper link 36 is in a state in which one arm portion 36a is largely swung upward, and the rotary shaft 38c of the rotary damper 38 is positioned near one end of the slot 34f of the first case member 34. The slot 34f does not restrict the swinging of the first case member 34, and is designed so that escape occurs. In this state, the gear portion 38 b of the rotary damper 38 is engaged with the gear member 32.

FIG. 15 shows the lower limit position of the second case member 35 in the vertical direction.
In FIG. 15, the second case member 35 swings around the rotation center axis 34 a with respect to the first case member 34, and the entire second case member 35 moves downward and is positioned at its lower limit position. The distance between the upper edge of the first case member 34 and the lower end of the guide rail 12 is D2.
At this time, the gear member 32 supported by the second case member 35 moves downward together with the second case member 35, thereby being reliably engaged with the rack member 14.
Also in this case, the gear portion 38 b of the rotary damper 38 is engaged with the gear member 32.

  In this way, the distance between the upper edge of the first case member 34 and the lower end of the guide rail 12 due to the vertical swing of the second case member 35 relative to the first case member 34 is from D1. Since it adjusts between D2, even if the installation precision of an opening part is low, it is possible to install the sliding door 13 appropriately.

In relation to the vertical movement adjustment of the second case member 35, even if the guide rail 12 and the rack member 14 are not arranged straight in the longitudinal direction due to distortion or the like, the guide of the sliding door 13 is used. As the second case member 35 moves in the vertical direction along with the movement along the rail 12, the gear member 32 meshes with the rack member 14 following the distortion of the rack member 14. Thereby, the gear member 32 always meshes with the rack member 14, and stable operation can be ensured.
Therefore, conventionally, the height of the sliding door is adjusted by adjusting the position of the wheel of the guide roller in the vertical direction, and it has been impossible to cope with such distortion of the guide rail 12 and the like. According to the sliding door runner structure 10 according to the embodiment of the present invention, the vertical adjustment of the movement of the second case member 35 can sufficiently cope with the distortion of the rack member 14 and the like.

In addition, when the second case is moved and adjusted in this way, the damper link 36 also moves up and down with respect to the timing bar 15, but one arm portion 36a of the damper link 36 is The gear portion 38b of the rotary damper 38 does not mesh with the gear member 32 even when it swings upward greatly.
Therefore, the deceleration immediately before the closing position when the sliding door 13 is closed by the damper link 36 and the timing bar 15 is not affected by the swinging of the second case member 35 and the sliding door 13 is closed. When the sliding door 13 reaches immediately before the closing position, the closing speed of the sliding door 13 can be surely reduced at an appropriate timing.
Note that the contact position in the longitudinal direction between the damper link 36 and the taper portion 15a of the timing bar 15 slightly changes due to the vertical movement adjustment of the second case. It is also possible to accurately adjust to a predetermined longitudinal position by adjusting the movement in the longitudinal direction.

Next, a procedure for installing the sliding door 13 on the door frame 11 using the sliding door runner structure 10 according to the present invention will be described with reference to FIGS.
First, the guide rail 12 assembled with the rack member 14 and the timing bar 15 is attached to the lower surface of the upper edge of the door frame 11. A unit member 30 is attached to the upper end of the sliding door 13 adjacent to the end in the closing direction.
Subsequently, the guide roller 20 is mounted on the guide rail 12 on the door frame 11 side. In this case, the guide roller 20 is inclined so that the wheel 24 faces upward, and the wheel 24 is inserted into the inside from the open lower end of the guide rail 12, and the lower end of the wheel 24 is inserted into the rail portion 12 a of the guide rail 12. Put it on. Then, the guide roller 20 is mounted on the guide rail 12 by raising the entire guide roller 20 upright.

Then, the first case member of the unit member 30 attached to the sliding door 13 while the upper end of the sliding door 13 is positioned in the opening so as to face the lower edge of the door frame 11 and the guide roller 20 is moved in the X direction. 34 is inserted into the recessed portion 34e.
Here, when the guide roller 20 is completely inserted into the recessed portion 34e, the engagement lock member 21c engages with the locking portion in the recessed portion 34e, and the guide roller 20 is locked in the recessed portion 34e. .

When removing the sliding door 13 from the door frame 11, the guide roller 20 is easily detached from the unit member 30 by operating the engagement lock member 21 c to release the lock.
In this manner, according to the sliding door runner structure 10 according to the present invention, the sliding door 13 can be easily and detachably installed on the door frame 11.

The present invention can be implemented in various forms without departing from the spirit of the present invention.
For example, in the embodiment described above, the base member 33 is urged upward by the damper 39, but is not limited thereto, and may be urged upward by an elastic member such as a compression spring. .
In the embodiment described above, the sliding door 13 is urged in the closing direction by the restoring force of the mainspring incorporated in the gear member 32. However, the sliding door 13 is not limited to this and is closed by other urging means. It may be biased in the direction.
For example, as the urging means, the guide rail 12 may be arranged so as to be inclined so as to become lower in the closing direction. Thereby, the sliding door 13 suspended and supported by the guide rail 12 by the guide roller 20 always moves in the closing direction by the component force in the closing direction generated by the inclined guide rail 12 based on the weight of the sliding door 13. You will receive an energizing force.

In the above-described embodiment, the timing bar 15 includes the tapered portion 15a at the end portion on the closed side, but is not limited thereto, and may include a tapered portion at the end portion on the open side. Thus, when the one arm portion 36a of the damper link 36 is in contact with the timing bar 15, if the gear portion 38b of the rotary damper 38 is engaged with the gear member 32, the sliding door 13 is similarly closed. When the sliding door 13 reaches just before the closed position, the gear member 32 is decelerated by the action of the rotary damper 38. However, in this case, when the position of the timing bar 15 is adjusted, the end on the closed side of the timing bar 15 must be cut along the door frame 11, and then the timing bar 15 is slightly opened. Adjustment such as shifting is difficult. In this regard, when the taper portion 15a is provided at the end portion on the closing side of the timing bar 15 as in the above-described embodiment, it is necessary to apply a load to the movement of the door to the closing side at any position. Even if it exists, it is not necessary to cut | disconnect the timing bar 15, and it is excellent in maintainability.
In the above-described embodiment, the damper link 36 is urged by the urging spring 36 c so as to mesh the gear portion 38 b of the rotary damper 38 with the gear member 32. The rotation shaft 38c may be urged to the operating side directly by the urging member.

In the above-described embodiment, the rotary damper 38 is related to the rack member 14 via the gear portion 38b and the gear member 32, and is configured to reduce the closing speed of the sliding door 13. The damper 38 may be directly related to the rack member 14 to brake the case member 31 or the unit member 30 with respect to the rack member 14.
In the embodiment described above, the rotary shaft 38c of the rotary damper 38 is connected to the arm portion 36b of the damper link 36 via the pedestal portion 36d. However, the present invention is not limited to this, and the rotary shaft 38c is connected to the damper link 36. Although not provided, it may be slidable or swingable, and may be configured to be pushed to the working side and the non-working side by the arm portion 36b.

In the above-described embodiment, the guide rail, the rack member, and the timing bar are attached to the upper edge of the door frame 11, and the guide roller and the unit member are attached to the upper end of the sliding door 13. The guide rail, the rack member, and the timing bar may be attached to the lower edge of the door frame 11, and the guide roller and the unit member may be attached to the lower end of the sliding door 13.
Furthermore, in the above-described embodiment, the guide rail, the rack member, and the timing bar are attached to the door frame side, and the guide roller and the unit member are attached to the sliding door side. The rack member and the timing bar may be attached, and the guide roller and the unit member may be attached to the door frame side.

  As described above, according to the present invention, with a simple configuration, the sliding door can be substantially temporarily stopped for a predetermined time at an arbitrary opening position, and then the sliding door can be automatically closed. An extremely excellent sliding door runner structure is provided.

10 Runner structure for sliding door 11 Door frame 12 Guide rail 13 Sliding door (door plate)
14 rack member 15 timing bar 20 guide roller 21 spindle block body 22 support portion 23 axle 24 wheel 30 unit member 31 case member 32 gear member 32a shaft body 32b tooth 32c mainspring case 32d clip member 33 base member 33a rotation center shaft 33b first One regulating roller 33c Second regulating roller 34 First case member 35 Second case member 36 Damper link 36a, 36b Arm portion 36c Energizing spring 37 Compression spring 38 Rotary damper 38a Damper portion 38b Gear portion 39 Damper 40 Free roller

Claims (5)

A guide roller that runs in the longitudinal direction along a guide rail provided on one upper edge or lower edge of the door frame or door plate of the sliding door;
A unit member fixed to the other upper end or lower end of the door frame or door plate and connected to the guide roller;
A rack member and a timing bar provided in parallel with the guide rail,
The unit member is
A case member;
Biasing means for biasing the case member in the closing direction;
A state in which the rotating shaft is rotatably supported around a rotating shaft movable with respect to the case member, and the rotating shaft is located on the operating side, and is related to the rack member, and the rotating shaft is located on the non-operating side. Then, the relationship with the rack member is released, a rotary damper urged to the operating side by the urging member,
A link member having one end abutting on the timing bar and the other end connected to the rotary damper;
The timing bar is
A taper portion that guides the timing bar so as to move the rotary damper to the operating side when the sliding door is moved in the closing direction;
When the link member is positioned in the opening direction from the taper portion, the rotary damper is positioned on the non-operating side, and the relationship between the rotary damper and the rack member is released,
When the sliding door moves in the closing direction and the link member reaches the tapered portion, the link member operates in accordance with the guidance of the tapered portion to move the rotary damper to the operating side, and the rotary damper In relation to the rack member, a load is applied to the movement of the sliding door in the closing direction, and when the link member is positioned in the closing direction from the tapered portion, the rotary damper is positioned on the operating side, A sliding door runner structure, wherein a load is continuously applied to the sliding door in the closing direction.   The sliding door runner structure according to claim 1, wherein the tapered portion is provided at an end portion of the timing bar on a sliding door closing side. The unit member is rotatably supported by the case member, and has a gear member that meshes with the rack member.
The rotary damper has a rotary damper portion and a gear portion coupled coaxially with the rotary damper portion,
When the rotary damper moves to the operating side, the rotary damper is related to the rack member by meshing the gear portion with the gear member.
The runner structure for sliding doors according to claim 1 or 2, characterized by the above-mentioned. The link member is swingably supported by the case member via a rotation shaft positioned between the one end and the other end, and is connected to the rotation shaft of the rotary damper at the other end.
The sliding door runner structure according to any one of claims 1 to 3, wherein a rotary shaft of the rotary damper is disposed in a long hole provided in the case member.   The sliding door runner structure according to any one of claims 1 to 4, wherein the urging member is an elastic member provided between the link member and the case member.

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