JP6410597B2 - Self-closing sliding door device - Google Patents

Description

  The present invention relates to a self-closing sliding door device, and more particularly to a free stopper mechanism thereof.

  The self-closing type sliding door device is configured to automatically move the sliding door in the closing direction by a self-closing means for urging the sliding door in the closing direction in order to prevent forgetting to close the sliding door. However, users of sliding doors may want to keep the sliding door open. For this reason, a self-closing type sliding door apparatus is normally provided with the mechanism which can maintain the sliding door in an open state, what is called a stopper mechanism. As such a stopper mechanism, a fully open stopper mechanism capable of maintaining the sliding door in a fully opened state is common, but a free stopper mechanism capable of maintaining the sliding door in an arbitrary position is also widespread.

  A conventional free stopper mechanism is configured, for example, as shown in Patent Document 1, such that a rocking (falling) stopper comes into contact with the upper surface of the rail from above. According to this configuration, a frictional force is generated between the stopper and the rail due to the weight of the stopper and the friction coefficient, and the sliding door is maintained in an open state by the frictional force.

  In the above configuration, a stopper having a large weight is employed in order to generate a sufficient frictional force, and such a stopper inevitably becomes large. However, since there is a space limitation at the upper end of the sliding door where the free stopper mechanism is provided, if a large stopper is employed, the degree of freedom in design of the self-closing sliding door device is reduced.

  For this reason, a self-closing type sliding door device has been proposed in which the stopper is not in contact with the upper surface of the rail but on the side surface so that a large weight is not required for the stopper, and a smaller stopper is employed (for example, Patent Document 2). A plan view of the free stopper mechanism described in Patent Document 2 is shown in FIGS. As shown in FIG. 12, the stopper 141 of the free stopper mechanism 140 is provided at the end of the upper end surface of the sliding door 10 on the door end side (left side in FIG. 12). Further, the stopper 141 is configured such that an acute-angled tip 142 is directed to the outdoor side (upper side in FIG. 12) by two tension springs 147. On the other hand, the rail 102 has such a length that the stopper 141 does not contact with the sliding door 10 in the fully closed state, that is, the length that does not contact the door-end side frame 53. With this configuration, as shown in FIG. 12, the stopper 141 does not contact the rail 102 when the sliding door 10 is fully closed. For this reason, when the sliding door 10 moves from the fully closed position to the opening direction (the right direction in FIG. 12), the sliding door 10 is opened without difficulty by the user because it does not receive a large resistance from the free stopper mechanism 140.

  As shown in FIG. 13, when the sliding door 10 is moved in the opening direction, the tip 142 of the stopper 141 comes into contact with the rail 102 and is dragged to the left side (door side), and the stopper 141 rotates counterclockwise in plan view. To do. Then, the sliding door 10 is further moved in the opening direction. As shown in FIG. 14, when the user releases the sliding door 10 at an arbitrary position, the stopper 141 acts as a support rod. For this reason, the sliding door 10 does not move in the closing direction in spite of the urging in the closing direction from the self-closing means.

  As shown in FIG. 15, when the user tries to close the sliding door 10, that is, when a force is applied to the sliding door 10 in the closing direction, the tip 142 of the stopper 141 is moved to the right as shown in FIG. The stopper 141 is rotated clockwise in plan view. As a result, the action of the stopper 141 as a support rod is released, and the sliding door 10 moves in the closing direction due to the urging in the closing direction from the self-closing means.

Japanese Patent Laid-Open No. 9-21262 JP 2009-52273 A

  By the way, as shown in FIG. 12, the free stopper mechanism 140 described in the above-mentioned Patent Document 2 has such a length that the rail 102 does not contact the door-end side frame 53, so that the position of the stopper 141 is inevitably. Therefore, it will be limited to the end of the door end side. For this reason, the self-closing type sliding door device provided with the free stopper mechanism 140 has a low degree of design freedom as a result.

  Then, an object of this invention is to provide the self-closing type sliding door apparatus which can raise the freedom degree of design.

In order to solve the above-mentioned problem, a self-closing type sliding door device according to claim 1 of the present invention includes a sliding door that opens and closes an opening, a guide rail that guides the sliding door for opening and closing, and a door that automatically closes the sliding door. A self-closing type sliding door device comprising a self-closing means for moving in the direction of and a free stopper mechanism for maintaining the sliding door in an open state,
The free stopper mechanism has a stopper that is rotatably supported with respect to the sliding door and can contact a side surface of the guide rail, and a spring that can direct the stopper to the guide rail.
The guide rail has a retracting hole for preventing the sliding door from contacting the stopper in the fully closed state;
The free stopper mechanism has a lever attached to the stopper, and a protrusion that engages with the lever in a state where the stopper is rotated to a position where it does not contact the guide rail.

  According to the self-closing type sliding door device, since the position of the stopper is not limited to the end portion on the door end side, the degree of freedom in design can be increased.

It is a schematic front view in the state in which the sliding door of the self-closing type sliding door apparatus which concerns on embodiment of this invention is fully closed. It is a schematic front view in the state which started opening the sliding door of the self-closing type sliding door apparatus. It is the front view which expanded the door-end side traveling body in the sliding door of FIG. It is AA sectional drawing of FIG. It is a figure which shows the state which turned off the free stopper mechanism in FIG. It is a figure which shows the state which started opening the sliding door in FIG. FIG. 5 is a view in which the sliding door is maintained in an open state by a free stopper mechanism in FIG. 4. It is a figure which shows the state which began to close the sliding door in FIG. It is a figure which shows the state which a sliding door moves to the closing direction automatically by the self-closing means in FIG. It is an expansion perspective view which shows the modification of the stopper of the free stopper mechanism. It is an expansion perspective view for demonstrating replacement | exchange of the friction part in the stopper. It is sectional drawing which shows the conventional free stopper mechanism. It is a figure which shows the state which started opening the sliding door in FIG. FIG. 13 is a view in which the sliding door is maintained in an open state by a free stopper mechanism in FIG. 12. It is a figure which shows the state which began to close the sliding door in FIG. It is a figure which shows the state which a sliding door moves to the closing direction automatically by the self-closing means in FIG.

Hereinafter, a self-closing type sliding door device according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the self-closing type sliding door device has an opening (see FIG. 2) 5 formed from an upper frame 52, a door-end side frame 53, a door pocket 56, and a lower frame (not shown). A sliding door 10 for opening and closing the door, a guide rail 2 for guiding the sliding door 10 for opening and closing, a self-closing means (not shown) for automatically moving the sliding door 10 in the closing direction, and opening the sliding door 10. The free stopper mechanism (refer FIG. 3 and FIG. 4) 4 maintained in this state is provided. The opening 5 is a space that communicates between the outside and the room. Hereinafter, when the door end side is the left side (that is, the door bottom side is the right side), the front side is described as the outdoor side (that is, the rear side is the indoor side).

  As shown in FIG. 1 and FIG. 2, the sliding door 10 has a guide rail 2 that includes an upper frame 52, a door-end side frame 53, a door-side side frame 55, and a lower frame (not shown). The opening 5 is opened and closed by moving from the door bottom side to the door tip side while being guided. Further, the sliding door 10 is provided at the door end side traveling body 13 and the door bottom side traveling body 15 to be suspended from the guide rail 2, and at the door end side and around the height of the user's hand. And a grip 11. In addition, this holding part 11 is made into the recessed part 11 for finger hooks formed in the sliding door 10 as an example, in order to simplify illustration and description.

  The guide rail 2 is provided on the upper frame 52 and extends from the door end side frame 53 to the door bottom side frame 55. Further, the guide rail 2 extends from the door-end side frame 53 to the door-end side frame 55, as shown in FIGS. The rail part 21 of 1 row | line | wire which travels, and the horizontal-plate part 22 located in parallel with this rail part 21 and a little on the outdoor side are included.

  The self-closing means urges the sliding door 10 in the closing direction by its own weight or a coil spring. When energizing with its own weight, the rail portion 21 is inclined so as to be lower on the door end side and higher on the door bottom side.

  The free stopper mechanism 4 is provided on the door-end side traveling body 13 and stops traveling of the door-end side traveling body 13 when the sliding door 10 starts to move in the closing direction by the self-closing means. It is.

Hereinafter, the guide rail 2 and the free stopper mechanism 4 which are the gist of the present invention will be described in detail with reference to FIGS.
First, the door end side traveling body 13 provided with the free stopper mechanism 4 will be described.

  As shown in FIGS. 3 and 4, the door-end side traveling body 13 includes a main body 31 attached to the upper end surface of the sliding door 10 and a wheel provided on the main body 31 and rolling on the rail portion 21 (drawing). Then, as an example, there are three wheels) 35. The main body 31 includes a wall portion 32 that supports the shaft 36 of the wheel 35 and a pedestal portion 34 that is in contact with the upper end surface of the sliding door 10 and serves as a pedestal of the wall portion 32. The wall portion 32 is formed with a space portion 33 penetrating from the indoor side to the outdoor side. The main constituent members of the free stopper mechanism 4 are disposed in the space 33 and on the upper surface of the pedestal 34.

  The free stopper mechanism 4 includes a stopper 41 disposed on the upper surface of the space portion 33 and the pedestal portion 34, a rotating shaft (see FIGS. 4 and 5) 43 that rotatably supports the stopper 41, and And a lever 44 attached to the stopper 41. The stopper 41 is a substantially rod body whose upper and lower surfaces are flat. One end portion 42 of the stopper 41 is made of an elastic body having a high coefficient of friction such as rubber, and the other end portion of the stopper 41 is a portion to which the lever 44 is attached. The intermediate portion of the stopper 41 is a portion supported by the rotating shaft 43. As shown in FIG. 4, when one end 42 of the stopper 41 is directed to the outdoor side, the one end 42 is positioned on the outdoor side of the side surface (inner side surface) 23 of the horizontal plate portion 22. To be arranged. For this reason, the one end portion 42 of the stopper 41 can rub against the side surface (inner side surface) 23 of the horizontal plate portion 22, and hence the one end portion 42 will be referred to as a rub portion 42. A side surface (inner side surface) 23 of the portion 22 is referred to as a rubbed surface 23.

  Further, as shown in FIGS. 3 to 5, the free stopper mechanism 4 is provided on the upper surface of the pedestal portion 34 with the two stopper-side spring clamps 45 provided on the upper surface of the stopper 41 and the space portion 33. And two tension springs 47 whose both ends are fixed to the stopper side spring clamp 45 and the main body side spring clamp 46. The arrangement of the stopper side spring clamp 45 and the main body side spring clamp 46 and the adoption of the tension spring 47 are such that the rubbing portion 42 is directed to the outdoor side. More specifically, for example, as shown in FIG. 4, the two stopper-side spring clamps 45 are arranged symmetrically with respect to the center line of the stopper 41, and the two main-body-side spring clamps 46 have the sliding portion 42 in the chamber. The two tension springs 47 arranged in line symmetry with respect to the center line of the stopper 41 directed outward are the same. As a result, the forces acting on the stopper 41 from the two tension springs 47 are balanced in a state in which the rubbing portion 42 is directed to the outdoor side (that is, the state shown in FIGS. 3 and 4).

  Further, the free stopper mechanism 4 has a protrusion 48 provided on the pedestal portion 34 to which the lever 44 can be locked. As shown in FIG. 5, the protrusion 48 is a position to be engaged with the lever 44 in a state where the stopper 41 is rotated until the rubbing portion 42 is located on the indoor side of the rubbing surface 23. Placed in. For this reason, since the lever 44 needs to get over the protrusion 48 before being locked to the protrusion 48, the lever 44 is made of a length and a material (for example, synthetic resin) that allow the bending to the extent that the protrusion 48 is overtaken. Is done.

Next, the guide rail 2 will be described.
As shown in FIG. 4, the horizontal plate portion 22 of the guide rail 2 has a retraction hole 24 for preventing the sliding portion 42 from contacting the sliding surface 23 when the sliding door 10 is fully closed. . The retraction hole 24 is not limited to the through hole as shown in FIG. 4, and may be a depression that does not contact the rubbing portion 42 with the rubbing surface 23.

Hereinafter, the operation of the self-closing sliding door device 1 will be described.
As shown in FIG. 4, when the sliding door 10 is fully closed, the stopper 41 (precisely the sliding portion 42) does not contact the guide rail 2 (precisely the sliding surface 23). For this reason, when the sliding door 10 moves from the fully closed position to the opening direction, it does not receive a large resistance from the free stopper mechanism 4, so that the sliding door 10 is opened without difficulty by the user. In order to turn off the free stopper mechanism 4, as shown in FIG. 5, the user presses the lever 44 in advance and locks the lever 44 to the protrusion 48.

  As shown in FIG. 6, when the sliding door 10 is moved in the opening direction, the rubbing portion 42 comes into contact with the rubbing surface 23 and is dragged to the left side (door side), and the stopper 41 is counterclockwise in plan view. Rotate to. When the sliding door 10 is further moved in the opening direction and the user releases his / her hand from the sliding door 10 at an arbitrary position as shown in FIG. 7, the stopper 41 acts as a support rod. For this reason, the sliding door 10 does not move in the closing direction in spite of the urging in the closing direction from the self-closing means.

  As shown in FIG. 8, when the user tries to close the sliding door 10, that is, when a force is applied to the sliding door 10 in the closing direction, as shown in FIG. The stopper 41 rotates clockwise in plan view. As a result, the action of the stopper 41 as a support rod is released, and the sliding door 10 moves in the closing direction by the biasing force from the self-closing means in the closing direction.

When the sliding door 10 moves in the closing direction and becomes fully closed, as shown in FIG. 4, the rubbing portion 42 returns to the position of the retraction hole 24, so that the rubbing portion 42 contacts the rubbing surface 23. Disappear.
As described above, according to the self-closing type sliding door device 1, the retracting hole 24 may be formed at the position of the sliding portion 42 in the fully closed state of the sliding door 10, so that the position of the stopper 41 is the end of the door tip Not limited to. Thereby, the freedom degree of design can be raised. Further, the self-closing sliding door device 1 can improve the stability of the sliding door 10 with respect to the guide rail 2 by the design in which the wheel 35 is arranged at the end on the door end side instead of the stopper 41.

  Furthermore, since only the protrusion 48 and the lever 44 are required to turn off the free stopper mechanism 4, the free stopper mechanism 4 is not complicated and the degree of design freedom can be further increased.

  In addition, in order to turn off the free stopper mechanism 4, the user only has to push the lever 44 to be engaged with the protrusion 48, and to turn on the free stopper mechanism 4, the user presses the lever 44. On the contrary, since it is only necessary to push and release from the protrusion 48, the on / off of the free stopper mechanism 4 can be switched very easily.

  In addition, since the two tension springs 47 do not contact each other, it becomes easy to replace the tension springs 47, which are parts that may be consumed, one by one, and the maintainability can be improved.

  By the way, in the said embodiment, although the stopper 41 was not demonstrated in detail, the structure with which attachment or detachment of the said friction part 42 is easy may be sufficient. More specifically, the stopper 41 in this case has a shape in which one end is hollowed out from above as shown in FIG. 10, and the rubbing portion is formed in this hollowed-out portion as shown in FIG. 42 is fitted from above. With this configuration, the frictional portion 42 can be easily attached and detached, so that the frictional portion 42 that is a part that may be worn can be easily replaced, and the maintainability can be improved.

In the above embodiment, the free stopper mechanism 4 is described as being provided on the door-end side traveling body 13, but may be provided on the door-end side traveling body 15.
Furthermore, although the tension spring 47 has been described in the above embodiment, the present invention is not limited to this, and other springs such as a compression spring may be used.

DESCRIPTION OF SYMBOLS 1 Self-closing type sliding door apparatus 2 Guide rail 4 Free stopper mechanism 10 Sliding door 13 Door tip side traveling body 21 Rail part 22 Horizontal plate part 24 Retraction hole 31 Main body 32 Wall part 33 Space part 34 Base part 35 Wheel 41 Stopper 42 Sliding part 43 Rotating shaft 44 Lever 45 Stopper side spring clamp 46 Main body side spring clamp 47 Tension spring 48 Projection

Claims (1)

A sliding door that opens and closes the opening, a guide rail that guides the sliding door for opening and closing, a self-closing means that automatically moves the sliding door in the closing direction, and a free stopper that maintains the sliding door in an open state A self-closing sliding door device comprising a mechanism,
The free stopper mechanism has a stopper that is rotatably supported with respect to the sliding door and can contact a side surface of the guide rail, and a spring that can direct the stopper to the guide rail.
The guide rail has a retracting hole for preventing the sliding door from contacting the stopper in the fully closed state;
The self-closing sliding door device, wherein the free stopper mechanism has a lever attached to the stopper, and a protrusion that is locked to the lever in a state where the stopper is rotated to a position where it does not contact the guide rail.

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