JP2008190144A - Top-railed sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a top-railed sliding door which prevents the sagging of a sash roller retainer portion of a top rail for suspension from the top, even in the case of the top-railed sliding door with a heavy sliding door. <P>SOLUTION: In this top-railed sliding door 1, the sliding door 4 is mounted on the C-shaped cross-section rails 3 for suspension from the top, which are juxtaposed on a head 2a and mounted in such a manner that an opening side is directed downward, via a bracket 5 for suspension from the top, where a sash roller 5a is arranged. A reinforcing member 10, which abuts on lip portions 3a of the adjacent rails 3 from the outside, is arranged between the rails 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an overhanging rail sliding door, and more particularly to an overhanging rail sliding door that prevents a door carriage receiving portion (hereinafter referred to as a “lip portion”) of an upper suspension rail from hanging down due to its own weight. .

  Conventionally, as an upper suspension type rail sliding door, an upper suspension type rail sliding door as shown in FIGS. 5 to 7 has been proposed.

  The upper suspension rail sliding door 50 includes a sliding door frame member 2 composed of an upper frame 2a, a lower frame 2c, and left and right side frames 2b, 2b attached to an open portion (entrance / exit portion) of the wall surface, and a plurality of pieces attached to the upper frame 2a. The upper suspension rail 3 (three in the illustrated example) and the sliding door 4 attached to the upper suspension rail 3 via a suspension bracket 5 in which a door 5a is disposed.

The upper suspension rail 3 has a C-shaped cross section with the open side facing downward, and the door 5a disposed on the upper portion of the upper suspension bracket 5 projects inwardly from the lower ends of the upper suspension rail 3. Place on the lip 3a.
Then, three upper suspension rails 3 in the figure are arranged in parallel on the upper frame 2a, and spacers 51 are attached between the upper suspension rails 3 at predetermined intervals by fixing means such as bolts. Perform positioning.

  The upper suspension rail 3 is fixed to the upper frame 2a by a fixing means such as a bolt through the rail mounting hole 3b.

  In this state, as shown in FIG. 6, the lower part of the upper suspension bracket 5 inserted into the upper suspension rail 3 is exposed below the upper frame 2 a, and the sliding door formed at the lower part of the upper suspension bracket 5. The upper suspension type rail sliding door is completed by fixing the mounting holes 5b and the upper surface of the sliding door 4 with fixing means such as bolts (see, for example, FIGS. 5 and 7 of Patent Document 1).

By the way, when this upper suspension type rail sliding door 50 is used as, for example, a school partition, it is used in a classroom with a large opening where the door height H of the sliding door 4 exceeds 2400 mm as shown in FIG. When traveling, the weight of the sliding door 4 is received during traveling, and the left and right lip portions 3a of the upper suspension rail 3 hang down as shown in FIG.
Since the amount of sag is not uniform at both lip portions 3a, there is a problem in that the sliding door 4 is obstructed in straight traveling.

Further, as shown in FIG. 5, when the opening width W exceeds 5000 mm, for example, as in the case of the upper suspension rail sliding door 50, the upper suspension rail 3 of a predetermined length is added to form one linear rail. In the joint portion of the upper suspension rail 3, there is a step between the rear end of the front side rail that hangs down on the lip portion and the front end of the rear side rail that does not hang down on the lip portion 3a. This has caused problems that the sliding door 4 is hindered or cannot travel.
Japanese Patent No. 3245559

  In view of the above-described problems of the conventional upper suspension rail sliding door, the present invention provides an upper suspension rail sliding door in which the lip portion of the upper suspension rail does not hang down even if the weight of the sliding door is large. The purpose is to provide.

  In order to achieve the above-mentioned object, the upper suspension type rail sliding door of the present invention is for an upper suspension in which a door wheel is arranged on an upward suspension rail having a C-shaped cross section that is provided side by side on an upper frame and has an open side facing downward. The upper suspension type rail sliding door in which the sliding door is attached via a bracket is characterized in that a reinforcing member that comes into contact with the lip portion of the adjacent upper suspension rail is disposed between the upper suspension rails.

  In this case, the reinforcing member can be fixed to the upper frame.

  In this case, the reinforcing member can be bonded and fixed to the upper suspension rail.

  Further, in these cases, the reinforcing member can be disposed at the joint portion in the longitudinal direction of the upper suspension rail.

  According to the upper suspension type rail sliding door of the present invention, the reinforcing member that contacts the lip portion of the adjacent upper suspension rail from the outside is disposed between the upper suspension rails. Even in the case of the upper suspension rail having a C-shaped cross section, the lip portion of the adjacent upper suspension rail can be supported by the reinforcing member, and the lip portion can be prevented from hanging down.

  Further, when the reinforcing member is fixed to the upper frame, the lip portion can be firmly held by the reinforcing member.

  Further, when the reinforcing member is bonded and fixed to the upper suspension rail, the mounting position of the reinforcing member can be freely set, and the attaching operation can be easily performed.

  Further, by arranging the reinforcing member at the joint portion in the longitudinal direction of the upper suspension rail, it is possible to effectively prevent the occurrence of a step generated at the joint portion.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an upwardly suspended rail sliding door of the present invention will be described based on the drawings.
In addition, about the structure similar to a conventional apparatus, the same code | symbol and a series of code | symbol are attached | subjected, and description is abbreviate | omitted.

  1 to 3 show an embodiment of the upper suspension rail sliding door of the present invention.

  As with the conventional example, the upper suspension rail sliding door 1 includes an upper frame 2a, a lower frame 2c, and left and right side frames 2b, 2b attached to an open portion (entrance / exit portion) of the wall surface, and an upper frame. Main components are a plurality of (three in the illustrated example) upper suspension rails 3 attached to 2a and a sliding door 4 attached to the upper suspension rail 3 via an upper suspension bracket 5 in which a door wheel 5a is disposed. And a main body part 11 having a U-shaped cross section having a width substantially equal to the width between the upper suspension rails 3, and a rail holding part 12 projecting outward from the U-shaped end part 11a of the main body part 11; The reinforcing member 10 having substantially the same length as the upper suspension rail 3 is arranged between the upper suspension rails 3.

  The material and manufacturing method of the reinforcing member 10 are not particularly limited. For example, in this embodiment, a metal plate material can be manufactured by bending as shown in FIG.

  And, when the end edge 12a of the rail holding portion 12 of the reinforcing member 10 is disposed between the rails 3 for hanging, so that it is above the U-shaped end portion 11a of the main body portion 11, that is, The rail holding portion 12 is preferably formed so that the end edge 12a side is inclined upward (formed so that the angle θ shown in FIG. 3B is an acute angle). When the edge 12a of the rail holding portion 12 first comes into contact with the lip portion 3a of the upper suspension rail 3 and the reinforcing member 10 is fixed to the upper frame 2a with fixing means such as a bolt B, The rail holding portion 12 is slightly bent, and a force that pushes upward can be applied to the lip portion 3 a of the upper suspension rail 3.

  In this case, of the plurality of (three in the illustrated example) upper suspension rails 3 attached to the upper frame 2a, the outer lip portion 3a of the outer upper suspension rail 3 is a lower end piece extending from the upper frame 2a. 13, the lower end piece 13 can be formed so as to be substantially horizontal, and the end side can be formed to be inclined upward, like the rail holding portion 12 of the reinforcing member 10.

  As with the conventional example, the upper suspension rail 3 has a structure in which both front and rear ends are open, and the door 5a provided on the upper portion of the upper suspension bracket 5 is inserted from either one end portion to form a rail mounting hole. The upper frame 2a is fixed to the upper frame 2a by fixing means such as bolts via 3b.

  Then, the main body portion 11 of the reinforcing member 10 is inserted between the adjacent upper suspension rails 3 and fixed to the upper frame 2a by fixing means such as bolts through the attachment holes 11b formed on the upper surface of the main body portion 11. At this time, the fixing means such as a bolt is screwed into the upper frame 2a until the end edge 12a of the rail holding portion 12 comes into contact with the outer surface of the lip portion 3a and slightly bends.

The location and number of the reinforcing members 10 are not particularly limited, and can be attached over the entire length of the upper suspension rail 3 attached to the upper frame 2a. For example, the reinforcing member 10 has an overall length of about 200 mm. In such a case, it may be arranged at a pitch of about 300 to 500 mm.
In this case as well, it is preferable to dispose the reinforcing member 10 at the joint portion of the upper suspension rail 3, thereby preventing the occurrence of a level difference at the joint portion and improving the running of the sliding door 4. be able to.

  Next, as in the conventional example, the upper part of the sliding door mounting hole 5b formed in the lower part of the upper suspension bracket 5 inserted into the upper suspension rail 3 and the upper surface of the sliding door 4 are fixed by fixing means such as bolts. The type rail sliding door 1 is completed.

In the above-described embodiment, the plate material is bent and formed into a crank shape in cross section. However, as shown in FIG. 4A, a solid convex cross section can be used.
In addition to fixing the reinforcing member 10 to the upper frame 2a between the rails, as shown in FIGS. 4 (b) and 4 (c), one of the adjacent rails 3 (see FIG. 4 (b)) or both ( You may make it fix with the adhesive agent s to the lip | rip part 3a and the standup | rising part 3c of FIG.4 (c).

  As mentioned above, although the upper suspension type rail sliding door of this invention was demonstrated based on the Example, this invention is not limited to the structure described in the said Example, The structure suitably in the range which does not deviate from the meaning. Can be changed.

  The upper suspension rail sliding door of the present invention has a characteristic that the lip portion of the upper suspension rail does not hang down even when the sliding door has a large sliding door weight. And, it can be used suitably for an upper suspension type rail sliding door including an application of a school partition having a wide opening width.

It is a whole front view which shows one Example of the upper suspension type rail sliding door of this invention. FIG. 2 is a side view of a partially cutaway section of XX in FIG. 1. The reinforcement member used for the upper suspension type rail sliding door of this invention is shown, (a) is a perspective view, (b) is a front view. It is a partially cutaway side view showing a modified example of the reinforcing member, (a) is an example of fixing to the upper frame with a solid convex cross-sectional shape, (b) is for hanging with a solid convex cross-sectional shape An example in which one side is bonded and fixed to the rail, (c) is an example in which both sides are bonded and fixed to the upper suspension rail with a solid convex cross-sectional shape. It is a whole front view of the conventional upper suspension type rail sliding door. FIG. 6 is a side view of a partially cutaway YY cross section of FIG. 5. It is sectional drawing which shows drooping of the door-car receiving part of the rail for upper suspension.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper suspension type rail sliding door 2a Upper frame 3 Upper suspension rail 3a Door car receiving part 4 Sliding door 10 Reinforcing member 11 Main body part 11a U-shaped edge part 12 Rail holding part 12a Edge of rail holding part 13 Lower end piece

Claims (4)

  In an upright rail type sliding door in which a sliding door is attached to an upper suspension rail having a C-shaped cross section that is juxtaposed on the upper frame and attached to the open side downward through an upper suspension bracket provided with a door wheel. An upper suspension type rail sliding door characterized in that a reinforcing member that comes into contact with the lip portion of an adjacent upper suspension rail from the outside is disposed between the upper suspension rails.   The upper suspension type rail sliding door according to claim 1, wherein the reinforcing member is fixed to the upper frame.   2. The upper suspension rail sliding door according to claim 1, wherein the reinforcing member is bonded and fixed to the upper suspension rail.   4. The upper suspension rail sliding door according to claim 1, wherein the reinforcing member is disposed at a joint portion in the longitudinal direction of the upper suspension rail.

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