JP2006194027A - Sliding door upper guide structure - Google Patents

Abstract

[PROBLEMS] A door plate that can smoothly run even if there is some unevenness in the mounting height of the upper rail, and that does not come off the upper rail due to an unexpected impact. Provides an upper guide structure.
An upper rail has a lip groove-shaped cross section that opens downward, and a runner member includes a case part attached to a door plate and an adjuster part 43 accommodated in the case part so as to be movable up and down. And a rail engaging portion 44 that is attached above the adjuster portion 43 and rotates horizontally. The rail engaging portion 44 is urged in one rotational direction via a spring member 58, and a pair of guide rollers 55 having a smaller diameter than the distance between the lip portions 23 of the upper rail 12 are disposed at substantially equidistant positions across the rotational shaft. It is attached. The groove formed in the peripheral surface of each guide roller 55 engages with the edge of the lip portion 23, and the rail engaging portion 44 is guided.
[Selection] Figure 3

Description

  The present invention relates to an upper guide structure of a sliding door that travels while being guided by an upper rail attached to a ceiling surface or the like.

  Sliding doors of the upper suspension type, which are installed as movable partitions in indoor spaces, are relatively tall and heavy sliding doors (including sliding doors) are suspended from the upper rail installed on the ceiling surface, etc. A considerable strength is required for the upper rail that bears the load of the door plate, and the degree of difficulty in the structural design of the ceiling portion and the member design of the rail is high. In addition, it takes time to hang the door plate on the upper rail.

  On the other hand, a floor-supporting type sliding door that supports the sliding door load with a lower rail laid on the floor surface is economical in terms of member design and relatively easy to install the doorboard. In addition, even if there is some unevenness in the ceiling height, the clearance generated between the floor surface and the doorboard can be made constant, so that an accident such as pinching a toe between the floor surface and the doorboard is less likely to occur.

Even in floor-supporting sliding doors, the upper rail that guides the upper part of the door plate is attached to the ceiling surface and upper frame to prevent the upper part of the door plate from falling off the ceiling surface and the upper frame, etc. It is provided along. As an upper guide structure in such a floor support type sliding door, in addition to a tendon system in which the upper part of the door plate is simply fitted inside a groove provided on the ceiling surface or upper frame, for example, described in Patent Documents 1 and 2, etc. This technique is known.
JP-A-10-196200 JP 2002-81265 A

  In the conventional guide type and the upper guide structure as described in Patent Document 1 described above, if the door plate is not sufficiently secured to the upper rail, it may be caused by an impact when the door plate is run, a person leaning on, or an earthquake impact. There is a risk of the doorboard falling off the upper rail and falling down.

  However, as a general ceiling finish, a gypsum board having a thickness of about several tens of millimeters is attached to the ceiling surface, and the upper rail is often embedded in the thickness of the gypsum board. Under these conditions, if an attempt is made to install a movable partition or the like up to the ceiling surface, the height of the upper rail itself is small, so that only a small margin for the doorboard can be secured. Therefore, the height from the floor surface to the upper rail has to be finished accurately and uniformly, which takes more time than necessary and affects the workability of the entire ceiling surface. In addition, the upper rail embedded in the ceiling surface may be slightly bent or curved due to use over time, which may cause the doorboard to be easily detached from the upper rail, or may impair the smooth running performance of the doorboard. is there.

  In Patent Document 2, the cross-sectional shape of the upper rail is formed into a lip groove shape that opens downward, and a runner member including four traveling wheels is incorporated in the upper rail so as to travel on the lip portion of the upper rail. A guide structure is disclosed. According to such a guide structure, there is no risk that the runner member will come off from the upper rail, but if the height of the upper rail itself is small, the clearance with which the runner member can move up and down within the upper rail is reduced. Only a small unevenness in the height from the floor surface to the upper rail hinders the running of the doorboard. Therefore, even when such a guide structure is employed, the height from the floor surface to the upper rail must be finished with high accuracy and uniformity, and the burden on the construction surface increases.

  The present invention has been made in view of the above circumstances, and can smoothly run the door plate even if there is some unevenness in the mounting height of the upper rail, and the door plate can be caused by an unexpected impact. It is an object of the present invention to provide a door guide upper guide structure that is easy to use and safe so that it does not come off the upper rail.

  In order to achieve the above-described object, the sliding door upper guide structure according to the present invention has at least two runner members attached to the upper portion of the door plate running on the lower rail, and the runner member is located above the door plate. An upper guide structure of a sliding door guided along an upper rail disposed in the upper rail, wherein the upper rail has a lip groove-shaped cross section that opens downward, and the runner member is attached to a corner of the door plate. A case portion having an opening on the top surface, an adjuster portion accommodated in the case portion so as to freely move up and down within a certain range, and a rail engaging portion attached above the adjuster portion, The engaging portion is held so as to be able to rotate in a horizontal plane via a vertical rotation shaft provided in the adjuster portion, and is biased in one rotational direction via a spring member so as to sandwich the vertical rotation shaft. Abbreviation At a distance position, a pair of guide rollers having a diameter smaller than the distance between the lip portions of the upper rail are attached so as to be able to rotate substantially horizontally, and each guide roller rips a concave groove formed on its peripheral surface. By engaging with the end edge of the portion, the rail engaging portion is guided along the upper rail in a state of being elastically engaged with the upper rail.

  According to this invention, since the rail engaging portion that engages with the upper rail freely moves up and down via the adjuster portion with respect to the case portion attached to the door plate, even when the height between the upper and lower rails is uneven. The adjuster portion absorbs the unevenness, and the engagement state of the rail engagement portion with the upper rail is always kept good.

  Furthermore, since the rail engaging portion engages with the edge of the lip portion of the upper rail by a pair of horizontally rotating guide rollers, even if the height of the upper rail is small, as long as the width of the upper rail is secured, the guide The diameter of the roller can also be increased, and the running is smooth.

  Since the diameter of the guide roller is smaller than the distance between the lip portions of the upper rail, it can be inserted from below and engaged with the upper rail at an arbitrary position of the upper rail. Therefore, it is not necessary to form a notch or the like for inserting the rail engaging portion into the upper rail. A biasing force that rotates the rail engaging portion in one direction acts on the guide roller engaged with the upper rail, and the guide roller is engaged in a stretched state between the lip portions. Is held directly under the axis of The guide roller only acts on the urging force that rotates the rail engaging part and the vertical load due to the weight of the rail engaging part and the adjuster part. Therefore, the friction resistance during running of the doorboard is small, and the structure of the parts is simple. Durability is also improved.

  Furthermore, the present invention provides a substantially rectangular or substantially long position in which the short side is slightly smaller than the distance between the two lip portions of the upper rail and the long side is larger than the distance between the lip portions. A circular stopper plate is mounted substantially horizontally.

  According to the present invention, even if the guide roller is removed from the lip portion of the upper rail due to an unexpected impact, the stopper plate having a longer side dimension larger than the distance between the lip portions is provided with the rail engaging portion. It is possible to prevent the doorboard from falling over by being caught on the lip portion of the upper rail in a state of receiving the urging force to rotate.

  The pair of guide rollers held by the rail engaging portion is pivotally mounted in the vicinity of both end portions of a substantially rectangular or substantially oval guide base plate whose short side is larger than the interval between both lip portions of the upper rail. preferable. According to this, the rotation posture of the rail engaging portion that rotates in the horizontal direction on the adjuster portion is stabilized, and it becomes easy to prevent the rail engaging portion from being caught on the upper surface of the door plate or the lower surface of the upper rail.

  The adjuster part that raises and lowers the rail engaging part may be held so as to be movable in the vertical direction via a four-joint parallel link mechanism provided in the case part, for example.

  Moreover, it is preferable that the case part in the said invention is formed so that it can attach from the side with respect to the corner part of a doorplate. According to this configuration, the rail engaging portion of the runner member is pre-engaged with the upper rail before the door plate is installed, and the case portion of the runner member hanging from the upper rail is installed at the corner of the door plate when the door plate is installed. Since it can attach to a part, construction becomes easy.

  According to the upper guide structure of the sliding door of the present invention configured as described above, the rail engaging portion that engages with the upper rail moves up and down freely via the adjuster portion with respect to the case portion attached to the door plate. Even when there is unevenness in the height between the upper and lower rails, the adjuster part absorbs the unevenness and the engagement state of the rail engaging part with respect to the upper rail is always kept good.

  Since the rail engaging portion engages with the edge of the lip portion of the upper rail by a pair of horizontally rotating guide rollers, the diameter of the guide roller can be appropriately ensured even when the height of the upper rail is small. . Furthermore, since the guide roller has a smaller diameter than the distance between the lip portions of the upper rail, it can be engaged with the upper rail from an arbitrary position. Then, by applying an urging force that rotates the rail engaging portion in one direction to the guide roller, the engagement state with the upper rail is stabilized, the door plate runs smoothly, and the door plate is always on the upper rail. It will be held directly below the axis.

  Further, by attaching a stopper plate above the guide roller, it is possible to prevent the door plate from falling even if the guide roller is removed from the lip portion of the upper rail due to an unexpected impact.

  By taking advantage of these advantages, it will be easy to embed the upper rail in the thickness of the ceiling finishing material, which is about a few tens of millimeters thick. This improves the economics of structural design and material design of the entire ceiling and improves workability. Will also be good.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration of a sliding door employing the sliding door upper guide structure of the present invention. In this sliding door, two door plates 10 having a substantially half width of the opening are arranged so as to be able to pull each other, and the two door plates 10 include two lower rails 11 laid on the floor surface, and a ceiling surface. Are guided by two upper rails 12 attached to each other.

  The lower rail 11 is not a main part of the present invention, and the structure thereof is not particularly limited. For example, the lower rail 11 has a substantially U-shape that is embedded in the floor surface, and the height adjustment is attached to the lower portion of the door plate 10 on the groove. The undercarriage 13 with functions can be rolled.

  2-5 shows embodiment of the upper guide structure of the sliding door of this invention.

  The upper rail 12 has an upper bottom portion 21 formed to have substantially the same width as the door plate 10, a pair of side wall portions 22 depending from both edges of the upper bottom portion 21, and a horizontal direction from the lower edge of the side wall portion 22 toward the inside. It has a so-called lip groove-shaped cross-sectional shape that includes a pair of lip portions 23 projecting from each other. The illustrated upper rail 12 is fixed to the ceiling surface by screwing the upper bottom portion 21 to the ceiling base material 31, and a ceiling finishing material (for example, a gypsum board) 32 having approximately the same thickness as the upper rail 12 is pasted on both sides thereof. It is installed.

  In the case where the upper rails 12 are arranged in a two-pull manner, for example, the two upper rails 12 are integrally formed via a connecting plate having an appropriate width formed by extending the upper bottom portion 21, and the connecting plate May be fixed to the ceiling base material 31.

  On the outer side of the side wall portion 22 in the upper rail 12, a ridge 24 for contacting the end surface of the ceiling finishing material 32 is formed along the material axis direction. Further, a groove portion is formed on the lower edge portion of the side wall portion 22. The groove portion includes a protruding piece 25 extending outward from the lip portion 23 and a protruding piece 26 protruding slightly above the protruding piece. ing. This groove part contributes to preventing the end part of the cloth member 33 from being turned up beautifully by finishing the end part of the cloth member 33 attached to the lower surface of the ceiling finishing material 32.

  The runner member 41 is a member that engages the door plate 10 with the upper rail 12 at two corners of the door plate 10, and is accommodated in the case portion 42 that is attached to the corner portion of the door plate 10. An adjuster portion 43 and a rail engaging portion 44 attached above the adjuster portion 43 are provided.

  The case portion 42 is a substantially box-shaped member having an open top surface and a hollow portion on the inside. The case portion 42 is formed in such a size that the front-rear width is within the thickness of the door plate 10, and as shown in FIG. It is attached from the side to the mounting notch 14 formed at the corner. The case part 42 and the door plate 10 are fixed by screwing an appropriate-shaped fixing piece 45 extending from the case part 42 main body or a part of the case part 42 to the door plate 10.

  The adjuster portion 43 has a cylindrical body 46 having a vertical axial hole, and lifting means for freely moving the cylindrical body 46 up and down within the case portion 42. The lifting means according to the illustrated embodiment includes a sleeve plate 47 formed on a side portion of the cylindrical body 46 and adjuster support pieces 48, 49 projecting from the inside of the case portion 42. , 52 to form a so-called 4-joint parallel link mechanism. Thereby, the cylinder 46 is hold | maintained so that it can raise / lower freely within a fixed range.

  The rail engaging portion 44 is inserted into the shaft hole of the cylindrical body 46 and protrudes upward, the guide base plate 54 attached to the shaft pin 53, and in the vicinity of both ends of the guide base plate 54, respectively. A pair of guide rollers 55 that are pivotally mounted and rotate horizontally, and a stopper plate 56 that is attached to the shaft pin 53 at a position higher than the guide rollers 55 are provided.

  The shaft pin 53 is held by a screw 57 inserted through the bottom of the cylinder body 46 so as not to come out of the cylinder body 46, and freely rotates in the shaft hole of the cylinder body 46. The guide base plate 54 has a substantially rectangular or substantially oval shape whose short side is larger than the distance between the lip portions 23 of the upper rail 12 (reference symbol W in FIG. 4), and the shaft pin 53 is inserted in the center thereof. It is held so as to be able to rotate in the horizontal plane together with the shaft pin 53. A spring member 58 such as a torsion spring is hooked between the guide base plate 54 and the cylindrical body 46, and urges the guide base plate 54 in one rotational direction.

  The guide roller 55 is formed so that the maximum outer diameter is slightly smaller (several millimeters) than the distance between the lip portions 23 of the upper rail 12, so that the guide roller 55 is equidistant and diametrically opposite to the shaft pin 53. Further, it is pivotally attached to the guide base plate 54. A concave groove is formed on the peripheral surface of the guide roller 55, and this concave groove engages with the edge of the lip portion 23 of the upper rail 12.

  The top portion of the shaft pin 53 protrudes upward from the guide roller 55, and a detachment prevention plate 56 is fixed horizontally to the top portion. The shape of the stopper plate 56 is substantially rectangular or substantially oval whose short side is slightly smaller than the distance between the lip portions 23 of the upper rail 12 and whose long side is larger than the distance between the lip portions 23.

  If the door plate 10 is engaged with the upper rail 12 via the runner member 41, even if the height between the upper and lower rails is uneven, the adjuster 43 absorbs the unevenness. The state of engagement of the rail engaging portion 44 with respect to is always kept good. Further, the urging force that rotates the rail engaging portion 44 in one direction acts on the guide roller 55, and the pair of guide rollers 55 is engaged between the lip portions 23 in a stretched state. It is held directly below the axis of the upper rail 12. Since only the urging force for rotating the rail engaging portion 44 and the vertical load due to the weight of the rail engaging portion 44 and the adjuster portion 43 act on the guide roller 55, the friction resistance when the door plate 10 is caused to travel is small. The door board 10 runs smoothly.

  Further, the guide roller 55 can be easily engaged with the lip portion 23 of the upper rail 12. That is, as shown in FIG. 6, if the runner member 41 is lifted with the long axis of the guide base plate 54 parallel to the upper rail 12, the maximum outer diameter is slightly smaller than the distance between the lip portions 23 of the upper rail 12. The small guide roller 55 is easily inserted between the lip portions 23 and engaged with the lip portions 23. Accordingly, there is no need to form a cutout portion for inserting the runner member 41 in the upper rail 12 or to prepare a stopper member for closing the cutout portion.

  In advance, two runner members 41 per door plate are engaged with the upper rail 12 in a state where they are not attached to the door plate 10, and then the door plate 10 is placed on the lower rail 11 and erected. If the case portion 42 of the runner member 41 is fixed to the door plate 10, the door plate 10 and the runner member 41 can be easily connected at any position within the opening surface without lifting the door plate 10.

  In addition, even if a strong impact is applied to the door plate 10 and the guide roller 55 is removed from the lip portion 23 of the upper rail 12, the retaining plate 56 having a longer side dimension larger than the distance between the lip portions 23 is Since it catches on the lip | rip part 23 of the upper rail 12 in the state which received the urging | biasing force which rotates the engaging part 44, it can prevent that the doorplate 10 falls down.

  In addition, this invention is not limited to the said embodiment, The number and the opening-and-closing form (single drawing, pulling, pulling in, drawing, etc.) of the door board 10 and rails are changed, or upper rails 12 are parts other than a ceiling (for example, beam It is also possible to implement it by a form such as attaching to the lower).

  The sliding door upper guide structure of the present invention can be used for sliding door-type fittings for various buildings and furniture, movable partition walls, and the like.

It is an elevation view which shows schematic structure of the sliding door which concerns on embodiment of this invention. It is a figure which shows the upper guide structure of the sliding door which concerns on embodiment of this invention, Comprising: It is the longitudinal cross-section which cut | disconnected the upper rail and the runner member in the direction orthogonal to the material axis of an upper rail. Similarly, it is the longitudinal section which cut | disconnected the upper rail and the runner member in the direction parallel to the material axis of an upper rail. Similarly, it is the top view which looked at the runner member engaged with the upper rail from the top. It is a fragmentary perspective view which shows a runner member and the attachment form to the doorplate. It is a perspective view which shows the method of engaging the rail engaging part of a runner member with an upper rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door plate 11 Lower rail 12 Upper rail 23 Lip part 41 Runner member 42 Case part 43 Adjuster part 44 Rail engaging part 54 Guide base board 55 Guide roller 56 Detachment plate 58 Spring member

Claims (5)

An upper guide structure of a sliding door in which at least two runner members are attached to the upper portion of the door plate running on the lower rail, and the runner members are guided along the upper rail disposed above the door plate. Because
The upper rail has a lip groove cross-sectional shape that opens downward,
The runner member is attached to the corner of the door plate, the case portion having an open top surface, the adjuster portion accommodated in the case portion so as to freely move up and down within a certain range, and the upper portion of the adjuster portion. A rail engaging portion,
The rail engaging portion is held so as to be able to rotate in a horizontal plane via a vertical rotation shaft provided in the adjuster portion, and is urged in one rotation direction via a spring member so that the vertical rotation shaft is A pair of guide rollers having a diameter smaller than the distance between the lip portions of the upper rail are mounted so as to be able to rotate substantially horizontally at substantially equidistant positions between them, and each guide roller is formed in a recess formed on the peripheral surface thereof. An upper guide structure of a sliding door, wherein the rail engaging portion is guided along the upper rail while being elastically engaged with the upper rail by engaging the groove with the edge of the lip portion.   A generally rectangular or substantially oval retaining plate whose short side is slightly smaller than the distance between the lip portions of the upper rail and whose long side is larger than the distance between the lip portions is located above the guide roller in the rail engaging portion. 2. The upper guide structure for a sliding door according to claim 1, wherein the upper guide structure is mounted substantially horizontally.   The pair of guide rollers held by the rail engaging portions are respectively axially mounted in the vicinity of both ends of a substantially rectangular or substantially oval guide base plate whose short side is larger than the interval between both lip portions of the upper rail. The upper guide structure of a sliding door according to claim 1.   The upper guide structure for a sliding door according to claim 1, wherein the adjuster portion is held so as to be movable in a vertical direction via a four-joint parallel link mechanism provided in the case portion.   The upper guide structure for a sliding door according to claim 1, wherein the case portion is formed so as to be attached to a corner portion of the door plate from the side.

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