JP2010121362A - Supporting device of folding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting device of a lower side running folding door enabling the lower side running folding door to be easily mounted by one worker in a short time and reliably installing the folding door without any gap. <P>SOLUTION: This supporting device of a folding door includes a fitted member 6 which is fitted to an upper rail 3 and fixed at a desired position by a fixing means 5, an upper liner 7 attached to the upper rail 3, a support shaft 9 which extends from the fitted member 6 and the upper liner 7 downward and has a flange part 8 at the bottom end, holding members 10 attached to both end upper parts of the folding door 1, a lower fixing part 20 disposed at one end of the folding door 1, and a lower liner 30 provided to the other end lower part of the folding door. The holding member 10 includes a lock part 12 for accepting and locking the flange part 8. The lower fixing part 20 includes a pin receiving member 22 which is fixed to a lower rail 4 and anchors a pin 23 from the folding door while receiving a folding door load. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a lower running type (ground running type) folding door in which its own weight is loaded on a lower rail, and in particular, a folding door support device capable of easily assembling a lower running type folding door to upper and lower rails. It is about.

In general, a folding door is formed by a pair of left and right door plates connected by hinges at a center, and is assembled to upper and lower rails laid in an opening of a frame. In assembling, in the case of a lower-folding type folding door, in many cases, a shaft (pin) that protrudes from the upper and lower end surfaces of one end portion of the folding door to a bearing member (see Patent Documents 1 and 2) fixed to the upper and lower rails. After fitting and fixing, a shaft (liner) protruding from the upper and lower end surfaces of the other end of the folding door is fitted into the upper and lower rails and attached.
Japanese Utility Model Publication No. 4-2881 JP-A-8-74466

  However, in the above-mentioned conventional means, the work of fixing the upper and lower sides of the folding folding door with the fixed bearing member is troublesome, and particularly when the height of the folding door is high, the upper part is difficult because the operator's hand does not reach, After fixing, the other folding door end shaft (liner) had to be fitted into the rail, so it took a lot of work and was very troublesome.

  Therefore, the present invention provides a support device for a lower folding door that can be easily installed in a short time by one worker in a short time and that can be reliably incorporated without rattling by a simple mechanism. This is the main purpose.

  In order to achieve the above object, the present invention takes the following technical means. That is, in the folding door support device of the present invention, the folding door composed of a pair of left and right door plates connected by hinges, the upper rail and the lower rail provided above and below the opening of the frame body to which the folding door is attached, A fitting member slidably fitted to the rail and fixed to the upper rail by a fixing means at a desired position; an upper liner slidably attached to the upper rail; and the fitting member and the upper liner, respectively, and Provided at the lower end of the folding door, a support shaft having a large-diameter collar at the lower end, a holding member attached to the opposing folding surface at the top of both ends of the folding door, a lower fixing portion disposed at one lower end of the folding door And a lower liner that slides along the lower rail, and the holding member includes a lock portion that receives the flange portion of the support shaft and prevents escape, and an inclined surface that guides the flange portion when introduced. Each support shaft is held so as to be movable in the vertical direction with respect to the fitting member and the upper liner, and the lower fixing portion is a pin receiving member fixed to the lower rail and fixing the pin member from the folding door. It is set as the structure equipped. According to such a configuration, the fitting member attached to the upper rail and the collar portion of the upper liner and the holding member of the door plate can be easily connected and held with one touch only by folding the left and right door plates, and the support shaft is Since it is incorporated so that it can be moved up and down with respect to the fitting member and the upper liner, even if the relative position between the flange portion of the support shaft and the lock portion of the holding member is slightly shifted up and down due to an attachment error or the like, At the time of introduction, the collar part is guided by the inclined surface of the elastic receiver, and the support shaft is automatically adjusted up and down, so that the collar part can be reliably introduced into the lock part of the holding member.

  Here, the above-mentioned opening refers to all doorways such as a bathroom, an accessory storage room, a partition, etc., in addition to an article outlet for a box storage frame such as furniture or a closet.

  In the folding door support device of the present invention, the holding member includes a dovetail groove for horizontally introducing the flange portion of the support shaft, and the lock portion is formed at the back of the dovetail groove, The lock portion is attached to the holding member so as to be able to move up and down while being always biased upward by a spring, and includes an elastic receiver having a recess that elastically receives the introduced collar from below. The elastic receiver can be configured to include an operation unit for moving the elastic receiver downward. According to such a configuration, in a posture in which the collar portion is held by the lock portion of the holding member, the collar portion is fitted into the concave portion of the elastic receiver so that the elasticity of the elastic receiver and the lower edge step portion of the dovetail groove It can be securely held by the holding member with no gaps or rattles, and it can be operated smoothly without any blurring when opening or closing the folding door or when traveling.

  Further, the folding door support device of the present invention includes a fixing screw and a plate nut to which the fixing means for the fitting member can be attached and detached, and a rail length direction on the left and right inner side surfaces of the upper rail between the plate nut and the fitting member. It can be set as the structure currently formed so that a fitting member may be fixed to an upper rail by pinching | interposing the convex-shaped part formed along and tightening with a fixing screw. According to this configuration, the fitting member can be fixed and fixed at a desired position of the upper rail by tightening the fixing screw, and the fitting member can be used as an upper liner by removing the fixing screw and the plate nut of the fitting member. can do

  According to the present invention, it is possible to provide a support device for a down-folding folding door by a simple mechanism that can be easily mounted in a short time by one operator and that can be reliably incorporated without rattling. Can do.

  1 to 6 show an embodiment of a folding door support device according to the present invention. Reference numeral 1 denotes a folding door that opens and closes an opening of a frame body such as furniture or a closet. The folding door 1 includes a pair of left and right door plates 1a and 1b that are foldably connected by a center hinge 2. Further, the folding door support device is slidably fitted to the upper rail 3 and the lower rail 4 provided above and below the opening, and is fixed to the upper rail 3 by a fixing means 5 at a desired position. A fitting member 6, an upper liner 7 slidably mounted on the upper rail 3, a support shaft 9 suspended from the fitting member 6 and the upper liner 7 and having a large-diameter flange 8 at the lower end, and a folding door The holding member 10 attached to the opposing folding surface of the upper ends of the door plates 1a and 1b, the lower fixing portion 20 disposed at the lower portion of one end of the door plate 1a of the folding door, and the lower end of the other end of the door plate 1b of the folding door. And a lower liner 30 that slides along the lower rail 4. The support shaft 9 has a large-diameter head 9 a at the upper end, and the large-diameter head 9 a is slidably mounted in the fitting member 6 and the vertical guide holes 6 a and 7 a of the upper liner 7. Thereby, it is incorporated so that it can move up and down with respect to the fitting member 6 and the upper liner 7, respectively.

  As shown in detail in FIG. 1, the fitting member 6 is slidable on a convex portion 3 a in which slide grooves 6 b provided on both left and right side surfaces are formed on the left and right inner surfaces of the upper rail 3 along the rail length direction. And is slidable along the upper rail 3. The fixing means 5 includes a fixing screw 5a with the rotating head 5c down and a plate nut 5b. The upper rail convex portion 3a is sandwiched between the plate nut 5b and the fitting member 6 and fixed. The fitting member 6 can be fixed and fixed at a desired position on the upper rail 1 by tightening the screw 5b from below. Further, as shown in FIG. 5, the upper liner 7 includes slide grooves 7 b on both left and right side surfaces, and the slide grooves 7 a are slidably fitted into the convex portions 3 a of the upper rail 3 along the upper rail 3. It is formed so that it can slide.

The holding member 10 includes a dovetail groove 11 for introducing the flange portion 8 of the support shaft 9 in the horizontal direction and a lock portion 12 for locking the flange portion 8 introduced into the dovetail groove 11. The dovetail groove 11 is formed with a wide lower portion so that the flange portion 8 is introduced together with the support shaft 9 from the horizontal direction but is prevented from being pulled upward.
The lock portion 12 has an elastic receiver 14 attached to the holding member 10 so that the lock portion 12 can move up and down while being always biased upward by a spring 13. Is provided with a concave portion 15 that elastically receives from below. Further, the elastic receiver 14 includes an inclined surface 16 that guides the collar portion 8 when introduced, and a portion including the inclined surface 16 moves the elastic receiver 13 downward with a fingertip or the like to open the entrance of the dovetail groove 11. It also serves as the operation unit 17.

  The lower fixing portion 20 includes a pin receiving member 22 fixed to the lower rail 4 with a screw 24 and having a pin receiving hole 21, and a pin member attached to the door plate 1a of the folding door and fitted into the pin receiving hole 21. 23 and is formed so that the folding door load is applied to the pin receiving member by fitting the pin member 23 into the pin receiving hole 21. The pin 23 is attached to a cylindrical case 25 embedded in the door plate 1a through a nut member 26 so as to be vertically adjustable. The pin receiving hole 21 may be vertically penetrated so that the pin member 23 contacts the bottom surface of the lower rail 4.

  As shown in FIG. 6, the lower liner 30 provided on the folding door plate 1 b is slidable on the lower rail 4 by being provided with a shaft member 32 that elastically protrudes downward by a spring 31 and a tip of the shaft member 32. And a slide portion 33 that fits into the.

In the above configuration, when the sliding door 1 is assembled to the upper and lower rails 3, 4, first, the left and right door plates 1 a, 1 b of the sliding door 1 are folded into a V-shaped plan view as shown in FIG. The lower pin member 23 is fitted into the pin receiving hole 21 of the pin receiving member 22 fixed to the lower rail 4, and the lower liner 30 of the other door plate 1 b is fitted into the lower rail 4. At this time, the fitting member 6 and the upper liner 7 which are attached to the upper rail 3 in advance are positioned between the left and right door plates 1a and 1b which are folded into a V shape. In this state, that is, the door plate 1a, 1b is moved from the state shown in FIGS. 2 and 3 in a direction close to each other (folding direction), the flange portion 8 of the support shaft 9 suspended from the fitting member 6 and the upper liner 7 is moved. It introduce | transduces into the dovetail groove 11 of the holding member 10 provided in the door plates 1a and 1b. In this case, since the support shaft 9 is incorporated so as to be vertically movable with respect to the fitting member 6 and the upper liner 7, the relative positions of the flange portion 8 and the dovetail groove 11 are slightly shifted up and down due to manufacturing errors. Even so, the support shaft 9 is automatically adjusted up and down, so that the flange portion 8 can be reliably introduced into the dovetail groove 11. The inclined surface 16 of the elastic receiver 14 is pressed by the intrusion of the flange portion 8 so that the elastic receiver 14 moves downward against the spring 13, and the flange portion 8 is fitted into the recess 15 of the elastic receiver 14. At this position, the elastic receiver 14 is returned to the original position by the spring 13 to close the outlet of the dovetail groove 11 and the escape of the collar 8 from the dovetail groove 11 is prevented (see FIG. 4). Finally, the fixing screw 5c is tightened to fix the fitting member 6.
Thereby, the folding door 1 can be easily held by the fitting member 6 of the upper rail 3 and the upper liner 7 only by folding the left and right door plates 1a and 1b. Moreover, when removing the folding door 1 for repair, the operation part 17 may be operated with a fingertip etc., and the elastic receptacle 14 may be moved down and the entrance of the dovetail groove 11 may be opened.
In addition, in the said process, you may fix the fitting member 6 in the position where the upper rail 3 was set previously.

  Further, in a posture in which the flange portion 8 is held by the lock portion 12 of the holding member 10, the flange portion 8 fits into the recess 15 of the elastic receiver 14, and the elasticity of the elastic receiver 14 and the lower edge step portion of the dovetail groove 11. Since it is sandwiched between 11a and 11a, the collar portion 8 can be reliably held by the holding member 10 without gaps or rattling, and therefore it can be smoothly operated without the occurrence of blurring when opening and closing the folding door or during traveling. Can do.

  In this embodiment, the fitting member 6 and the upper liner 7 are used to support the upper portion of the folding door 1. However, the fitting member 6 is used as the upper liner 7 by removing the fixing screw 5 a and the plate nut 5 b of the fitting member 6. It is also possible to do.

  Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, if the lower fixing part 20 that supports the lower part of the folding door 1 can be fitted into the pin receiving hole 21 of the pin receiving member 22 in which the pin 23 is fixed to the lower rail 4 and can fix one end of the folding door. Any structure may be used. Further, the lower liner 30 may be simply a pin-shaped one or a door wheel. In addition, the present invention can be implemented with appropriate modifications within the scope of the present invention, achieving the object of the present invention, and achieving the above effects.

  The folding door support device according to the present invention can be used for all folding doors such as furniture and fittings.

An exploded perspective view showing one example of a folding door support device according to the present invention, showing a holding member attached to the folding door and a fitting member attached to the upper rail. Sectional drawing which shows the attachment process of the said folding door. The schematic plan view which shows the attachment process of the said folding door. Sectional drawing which shows the attachment state of the said folding door. The perspective view which shows the upper liner of the support apparatus of the folding door which concerns on this invention. Sectional drawing which shows the lower liner of the support apparatus of the folding door which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding door 1a, 1b Door plate 2 Center hinge 3 Upper rail 4 Lower rail 5 Fixing means 6 Fitting member 7 Upper liner 8 Eaves part 9 Supporting shaft 10 Holding member 11 Dovetail groove 12 Locking part 13 Spring 14 Elastic receiving part 15 Recessed part 16 Inclined surface 17 Operation part 20 Lower fixing part 30 Lower learner

Claims (3)

A folding door composed of a pair of left and right door plates connected by hinges, an upper rail and a lower rail provided above and below the opening of the frame body to which the folding door is attached, and a slidably fitted into the upper rail and fixed at a desired position A fitting member fixed to the upper rail by means, an upper liner slidably mounted on the upper rail, a supporting shaft suspended from the fitting member and the upper liner and having a large-diameter collar at the lower end, and a folding door A holding member attached to the opposing folding surface at the top of both ends, a lower fixing portion disposed at the lower end of one end of the folding door, and a lower liner provided at the lower end of the other end of the folding door and sliding along the lower rail ,
The holding member includes a lock portion that receives the flange portion of the support shaft and prevents escape, and an inclined surface that guides the flange portion when introduced, and each support shaft moves up and down with respect to the fitting member and the upper liner. Is held possible,
The lower fixing portion is a folding door support device including a pin receiving member that is fixed to the lower rail and fixes a pin member from the folding door.   The holding member includes a dovetail groove for introducing the flange portion of the support shaft in the horizontal direction, and the lock portion is formed at the back of the dovetail groove, and the lock portion is always attached upward by a spring. An elastic receiver having a recess attached to the holding member so as to move up and down in a biased state and elastically receiving the introduced collar from below; The folding door support device according to claim 1, further comprising:   The fixing means for the fitting member includes a detachable fixing screw and a plate nut, and sandwiches convex portions formed along the rail length direction on the left and right inner surfaces of the upper rail between the plate nut and the fitting member. The folding door support device according to claim 1 or 2, wherein the fitting member is fixed to the upper rail by tightening with a fixing screw.

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