Tension-type accordion door

Abstract

To provide a brace type accordion door which can be easily installed on a wall surface. [Solution] The tension-type accordion door 1 comprises an accordion door main body 11 that can be folded accordion-like and expanded and contracted laterally, a number of runners 12 attached to the upper end of the accordion door main body, a roughly rectangular cylindrical tension-type telescopic rail 13 that is erected so as to press against a pair of opposing wall surfaces and from which the multiple runners can be slidably suspended, and a cutout portion 16 that extends from the front or back of the tension-type telescopic rail to the bottom surface and into which the multiple runners attached to the upper end of the accordion door main body can be inserted sequentially.

Description

[Technical field]

[0001] This invention relates to a tension-type accordion door in which the accordion door body is suspended from a tension-type telescopic rail. [Background technology]

[0002] As one type of room partition, a tension-type accordion door, in which the accordion door body is suspended from a tension-type expandable rail, is known (see Non-Patent Document 1, etc.). As shown in Figure 7, the installation of a conventional tension-type accordion door 100 is generally carried out in the following steps (1) to (5).

[0003] (1) The accordion door body 101 is suspended from the tension-type telescopic rail 103 by inserting a plurality of runners 102, 102, . . . that are attached in advance to the upper end of the accordion door body 101 into the tension-type telescopic rail 103. (2) The left end of the outer rail 103out of the tension-type telescopic rail 103 is pressed against the left wall surface 104L. (3) The inner rail 103in is extended from the outer rail 103out, and the right end of the inner rail 103in is pressed against the right wall surface 104R. (4) After confirming that the posture of the tension-type telescopic rail 103 is correct, push down the lock lever 105 of the inner rail 103in to fix the tension-type telescopic rail 103 between the left and right wall surfaces 104L, 104R. (5) Check that the tension-type telescopic rail 103 is fixed to the left and right wall surfaces 104L, 104R by gently pulling downward with your hand.

[0004] In this way, conventional tension accordion door 100 has the advantage that it can be installed without damaging left and right wall surfaces 104L, 104R, and can also be installed in places where screws cannot be used, such as concrete or tile surfaces, or in places without a ceiling.

[0005] Conventional tension-type accordion doors 100 usually have a built-in shortening stopper (see Patent Document 1, etc.) that locks the outer rail 103out and the inner rail 103in to prevent the length of tension-type telescopic rail 103 from being inadvertently shortened. This shortening stopper (see Patent Document 1, etc.) allows tension-type telescopic rail 103 to be extended but not shortened, so that it can be reliably prevented from falling during installation. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Publication No. 3211059 [Non-patent literature]

[0007] [Non-Patent Document 1] "One Lock Door Joyfit", Fullness Co., Ltd., [Searched on February 25, 2025], Internet<URL:https: / / www.fullness.ne.jp / products / product_07 / product_07_08.html> Summary of the Invention [Problem to be solved by the invention]

[0008] However, the user had to carry out steps (2) to (4) while holding the entire conventional tension-type accordion door 100, which weighs 2 to 3 kg, at a position higher than his / her height for a certain period of time. For this reason, due to the user's lack of strength, the tension-type telescopic rail 103 could not be installed properly, and the door could be fixed in an inclined position.

[0009] Here, in order to make it possible to adjust the inclination after installation, it would be effective to equip the shortening stopper with an inversion release function (see Patent Document 1, etc.) that releases the engagement between the outer rail 103out and the inner rail 103in when the posture of the tension-type telescopic rail 103 is inverted upside down. However, since it is practically impossible to invert the tension-type telescopic rail 103 upside down when the accordion door main body 101 is suspended, the inversion release function (see Patent Document 1, etc.) of the shortening stopper cannot be easily used, and it is extremely difficult to adjust the inclination or re-install the door.

[0010] If the tension-type telescopic rail 103 could be installed before the accordion door main body 101 is hung, it would be possible to adjust the inclination after installation by utilizing the reversal release function of the shortening stopper (see Patent Document 1, etc.). However, since the accordion door main body 101 has rigidity unlike a general curtain, it is necessary to fix multiple runners 102, 102, ... to the upper end of the accordion door main body 101 in advance, so it is not possible to adopt the work of attaching the curtain hooks on the curtain side to the runners on the rail side one by one, as in the case of hanging a curtain. For this reason, the conventional tension-type telescopic rail 103 has to be installed in a state where the accordion door main body 101 is hung, making it difficult to adjust the inclination after installation or to re-install.

[0011] Therefore, the present invention has been made in consideration of the above circumstances, and its object is to provide a brace-type accordion door that is easy to install on a wall. [Means for solving the problem]

[0012] One tension-type accordion door of the present invention is characterized in that it comprises an accordion door main body that can be folded accordion-like and expanded laterally, a number of runners attached in a line to the top end of the accordion door main body, a roughly rectangular cylindrical tension-type telescopic rail that is installed so as to press against a pair of opposing wall surfaces and suspends the multiple runners in a slidable manner, and a cutout portion that extends from the front or back of the tension-type telescopic rail to the bottom surface and into which the multiple runners attached to the top end of the accordion door main body can be inserted sequentially.

[0013] In any of the tension-type accordion doors of the present invention, a spacer may be interposed around the suspension rod of the leading runner, which is the first of the multiple runners to be inserted into the cutout portion, to maintain the leading runner in an upright position.

[0014] In any of the tension-type accordion doors of the present invention, the tension-type telescopic rail is provided with a shortening stopper that engages the outer rail and the inner rail of the tension-type telescopic rail to prevent the length of the tension-type telescopic rail from being inadvertently shortened, and the shortening stopper may have an inversion release function that releases the engagement when the user inverts the tension-type telescopic rail upside down in the engaged state.

[0015] In any of the tension-type accordion doors of the present invention, the door may further include a cover that can be fitted into the cutout portion, which, when fitted into the cutout portion, gives the surface of the tension-type telescopic rail a flat appearance and ensures the guiding function of the runner by the tension-type telescopic rail. Effect of the Invention

[0016] The tension-type accordion door according to the present invention has a notch provided from the front or back to the bottom of the tension-type telescopic rail, and the plurality of runners can be inserted sequentially through the notch, so that the tension-type telescopic rail can be installed on the wall and then the accordion door body can be suspended. Therefore, when installing the tension-type telescopic rail on a pair of walls, the user does not need to support the heavy accordion door body with his / her hands, so the possibility of the tension-type telescopic rail tilting or loosening is suppressed to a low level. In addition, the tension-type telescopic rail according to the present invention is installed on the wall without the accordion door body being suspended, so that it is easy to adjust the tilt or loosening (reinstallation) by using, for example, the reversal release function of the shortening stopper (see Patent Document 1, etc.). Therefore, according to the present invention, a tension-type accordion door that is easy to install on a wall is realized. [Brief description of the drawings]

[0017] [Figure 1] This is an oblique view of one embodiment of a tension-type accordion door according to the present embodiment. [Diagram 2] FIG. 2A is a perspective view of the inner rail without the cover attached, and FIG. 2B is a perspective view of the inner rail with the cover attached. [Diagram 3] 1A is a front view of the cover, FIG. 1B is a side view of the cover, and FIG. 1C is a perspective view of the cover as seen from the rear side. [Figure 4] 1A is a perspective view of the leading runner, and FIG. 1B is a vertical cross-sectional view of the leading runner. [Diagram 5] 1 is an explanatory diagram illustrating a method for installing the tension-type telescopic rail according to the present embodiment. FIG. [Figure 6] 2 is an explanatory diagram illustrating a method of suspending the accordion door body of this embodiment from a tension-type telescopic rail. [Figure 7] FIG. 1 is an explanatory diagram illustrating a method for installing a conventional brace-type accordion door. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a brace-type accordion door according to the present invention will be described in detail below with reference to the drawings.

[0019] 1.Outline of the structure of the tension-type accordion door Fig. 1 is a perspective view of one embodiment of a tension-type accordion door according to the present embodiment. As shown in Fig. 1, the tension-type accordion door 1 of this embodiment comprises an accordion door main body 11 that is folded like bellows and can expand and contract laterally, left and right side bars 20, 20 attached to the left and right ends of the accordion door main body 11, left and right front runners 12, 12 attached individually to the upper ends of the left and right side bars 20, 20, a plurality of intermediate runners 120, 120, ... attached individually to the upper ends of a plurality of rectangular core materials 18, 18, ... that constitute the accordion door main body 11, and opposing The rail is equipped with a tension-type extendable rail 13 having a roughly square cylindrical shape which is erected so as to press against a pair of wall surfaces (symbols 14L and 14R in FIG. 5 described later) and which suspends runners (left and right leading runners 12, multiple intermediate runners 120, 120, ...) in a slidable manner, handles 21, 21 attached midway along the side bars 20, 20, magnets 22M, 22M embedded in the sides of the side bars 20, 20, and magnet receiving plates 22R, 22R attached to the left and right wall surfaces (symbols 14L and 14R in FIG. 5 described later).

[0020] Here, the material of the accordion door main body 11 is, for example, a combination of fabric, synthetic resin, and paper, the material of the runner 12 is, for example, a combination of synthetic resin and metal, the material of the tension-type telescopic rail 13 is, for example, a combination of synthetic resin and metal, the material of the side bar 20 is, for example, metal, the material of the handles 21, 21 is, for example, synthetic resin, the material of the magnet 22M is, for example, a combination of metal, magnet, and synthetic resin, and the material of the magnet receiving plate 22R is, for example, metal (magnetic material).

[0021] 1, the left leading runner 12 is attached to the upper end of the left side bar 20 via a metal suspension rod 12R. Similarly, the right leading runner 12 is attached to the upper end of the right side bar 20 via a metal suspension rod, and the multiple intermediate runners 120, 120, ... are individually attached to the upper ends of the multiple core materials 18, 18, ... via metal suspension rods. The left and right side bars 20, 20 and the multiple core materials 18, 18, ... are entirely covered with a fabric (cloth) made of, for example, polyvinyl chloride, and the upper end of the fabric (cloth) has multiple openings lined up for passing the suspension rods of the leading runner 12 or the intermediate runners 120 through.

[0022] 2. Overview of tension-type telescopic rail 1, the tension-type telescopic rail 13 includes a metal outer rail 13out having a generally rectangular cylindrical shape and located on the left side as seen by a user when installed, and a metal inner rail 13in having a generally rectangular cylindrical shape and located on the right side as seen by a user when installed and inserted into the right end of the outer rail 13out. When the inner rail 13in is inserted into the outer rail 13out, the tension-type telescopic rail 13 contracts, and when the inner rail 13in is extended from the outer rail 13out, the tension-type telescopic rail 13 expands.

[0023] End caps 13C, 13C are attached to both ends of the tension-type telescopic rail 13, and the left and right end caps 13C, 13C can be closely fitted to the left and right wall surfaces (14L, 14R in Figure 5, described later) on which the tension-type telescopic rail 13 will be installed.

[0024] A lock lever 15 is provided at a predetermined position on the right side of the upper surface of the inner rail 13in as shown in an enlarged view in the upper right of Fig. 1, and the shape of the lock lever 15 is arranged so that it can be operated with the thumb of the right hand supporting the inner rail 13in. When the user tilts the lock lever 15 to the right with the thumb of the right hand after adjusting the length of the tension-type telescopic rail 13, the left and right end caps 13C, 13C are pressed against the left and right wall surfaces (reference numerals 14L, 14R in Fig. 5, which will be described later).

[0025] As shown in an enlarged view in the upper right of FIG. 1, a stopper accommodating chamber 13U is formed in the upper space of the tension-type telescopic rail 13, and a runner accommodating chamber 13B is formed in the lower space of the tension-type telescopic rail 13.

[0026] A shortening stopper 131 is attached to the stopper accommodating chamber 13U to engage the outer rail 13out and the inner rail 13in so that the length of the tension-type telescopic rail 13 is not inadvertently shortened during installation.

[0027] The runner storage chamber 13B is a storage chamber that slidably stores the wheels (e.g., reference symbol 12W) of the runners (left leading runner 12, multiple intermediate runners 120, 120, ..., right leading runner 12). In order to guide the runners (left leading runner 12, multiple intermediate runners 120, 120, ..., right leading runner 12), a slit 13S (see FIG. 2) that is narrower than the width of the heads (e.g., reference symbol 12HD) of the runners and wider than the diameter of the suspension rods (e.g., reference symbol 12R) of the runners is provided on the bottom surface of the runner storage chamber 13B.

[0028] In the above-mentioned tension-type accordion door 1, a cutout portion 16 is provided in a predetermined area on the right side and lower side of the inner rail 13in, as shown in an enlarged view in the upper right of Fig. 1, from the front or back side (here, the front side) of the inner rail 13in to the slit 13S on the bottom surface to expose the runner storage chamber 13B. This cutout portion 16 is used as an opening portion for sequentially inserting the runners (left leading runner 12, multiple intermediate runners 120, 120, ..., right leading runner 12) of the folded accordion door body 11 into the inside of the tension-type telescopic rail 13. The height of the cutout portion 16 is, for example, slightly larger than the height of the head portion of the runner (e.g., symbol 12HD), and the width of the cutout portion 16 is, for example, equivalent to the width of three runners closely arranged horizontally. At least when the tension-type accordion door 1 is in use, a dedicated resin cover 17 is attached to this cutout portion 16.

[0029] 3. Details of the cutout and cover Fig. 2(A) is a perspective view of the inner rail without the cover attached, and Fig. 2(B) is a perspective view of the inner rail with the cover attached. As shown in Fig. 2(A), the cutout portion 16 provided in the inner rail 13in has a substantially rectangular shape in front view, and notches 16B, 16B are provided on the left and right sides of the front lower portion of the cutout portion 16. On the other hand, as shown in Figs. 2(A) and (B), the cover 17 is a cover that has a substantially rectangular shape in front view and a substantially L-shaped cross section that can be fitted into the cutout portion 16. The cover 17 (Fig. 2(B)) in the state of being fitted into the cutout portion 16 is shaped to give the surface of the inner rail 13in a substantially flat appearance and to ensure the length and width of the slit 13S on the bottom surface of the inner rail 13in. Therefore, with the cover 17 (Figure 2(B)) fitted into the cutout portion 16, the guiding function of the tension-type telescopic rail 13 for the runners (the left leading runner 12, multiple intermediate runners 120, 120, ..., the right leading runner 12) can be ensured.

[0030] Fig. 3(A) is a front view of the cover, Fig. 3(B) is a side view of the cover, and Fig. 3(C) is a perspective view of the cover as viewed from the rear side. As shown in Figs. 3(B) and (C), on the rear side of the cover 17, there are provided integrally with the cover 17 an upper engagement portion 17A that engages with the upper side 16A of the notch portion 16, left and right engagement portions 17B, 17B that engage with the left and right notches 16B, 16B of the notch portion 16, and left and right engagement portions 17C, 17C that engage with the left and right sides 16C, 16C of the notch portion 16. In addition, a hook portion 17D is provided in the center of the upper engagement portion 17A so that the user can hook his or her fingernail when removing the cover 17.

[0031] 4. About the front runner Fig. 4(A) is a perspective view of the leading runner, and (B) is a vertical cross-sectional view of the leading runner. As shown in Figs. 4(A) and (B), in this embodiment, a spacer 121 is interposed around the suspension rod 12R of the runner (here, the left and right leading runners 12, 12) that should be inserted first into the notch 16 in order to maintain the leading runner 12 in an upright state. The structure of the leading runner 12 equipped with the spacer 121 will be described in detail below. Note that the structure of the intermediate runner 120 not equipped with a spacer is known, and therefore description thereof will be omitted.

[0032] 4(A) and (B), the leading runner 12 includes a rigid resin runner body 12B having a substantially rectangular cylindrical shape with a bottom, a metal shaft 12S penetrating laterally through the top of the runner body 12B, synthetic resin wheels 12W, 12W rotatably attached to both ends of the shaft 12S, a metal suspension rod 12R rotatably attached so as to protrude downward from the shaft body 12B, and a metal clamp portion 12C fixed to the lower end of the suspension rod 12R. The clamp portion 12C clamps the upper end of the side bar 20 (FIG. 1), and the clamp portion 12C is attached to the upper end of the side bar 20 by circular holes 12H, 12H in the jaw portion of the clamp portion 12C and screws (not shown) inserted through the circular holes 12H, 12H.

[0033] As shown in Fig. 4(B), the spacer 121 is, for example, a substantially cylindrical part made of metal and arranged around the suspension rod 12R. A flange portion 121T that abuts against the bottom surface of the runner body 12B is provided on the upper end side of this spacer 121. Therefore, the lower end of the spacer 121 abuts against the upper surface of the clamp portion 12C, and the upper end of the spacer 121 (flange portion 121T) abuts against the bottom surface of the runner body 12B. Therefore, the presence of the spacer 121 maintains the head 12HD of the leading runner 12 in an upright state.

[0034] Incidentally, if the spacer 121 is not interposed, the head 12HD of the leading runner 12 would not necessarily be maintained in an upright position, and there was a possibility that the head 12HD would tilt or become embedded downward through an opening in the fabric (cloth). For this reason, in the conventional tension accordion door 100 (see FIG. 7), when attaching the leading runner 102 to the tension telescopic rail 103, it was necessary to pinch the head of the leading runner 102 with the fingertips and pull it out.

[0035] 5. About the shortening stopper As described above, the shortening stopper 131 (see FIG. 1) is attached to the stopper accommodation chamber 13U of the tension-type telescopic rail 13 according to this embodiment. The shortening stopper 131 is a mechanism for locking the outer rail 13out and the inner rail 13in of the tension-type telescopic rail 13 so that the length of the tension-type telescopic rail 13 is not inadvertently shortened. The shortening stopper 131 is also equipped with an inversion release function that releases the lock when the user inverts the posture of the tension-type telescopic rail 13 in the locked state. Hereinafter, the posture in which the runner accommodation chamber 13B faces downward is referred to as the "normal posture" and the posture in which the runner accommodation chamber 13B faces upward is referred to as the "vertically inverted posture," and the shortening stopper 131 will be briefly described. An example of the shortening stopper 131 is also disclosed in Patent Document 1.

[0036] The shortening stopper 131 has multiple engagement grooves arranged in a ladder shape on the side of the inner rail 13in, and a stopper piece attached to the side of the outer rail 13out that can swing like a seesaw. This stopper piece can swing left and right with its hook-shaped tip pointing leftward, and when the tension-type telescopic rail 13 is in the normal position, the stopper piece is balanced with its hook-shaped tip hanging down to the left.

[0037] Therefore, when the tension-type telescopic rail 13 is in the normal position, if an attempt is made to extend the inner rail in from the outer rail 13 out, the hook-shaped tip of the stopper piece is successively flipped up by the multiple engagement grooves, allowing the tension-type telescopic rail 13 to extend (it extends with a clicking sound), but if an attempt is made to insert the inner rail in into the outer rail 13 out, the hook-shaped tip of the stopper piece remains engaged with the engagement groove, preventing the tension-type telescopic rail 13 from shortening (shortening prevention function of the shortening stopper 131).

[0038] When the tension-type telescopic rail 13 is in an upside-down position, the hook-shaped tip of the stopper piece is balanced in a position away from the engagement groove, so that the hook-shaped tip does not act on the engagement groove, and the tension-type telescopic rail 13 can be smoothly shortened and extended (the inversion release function of the shortening stopper 131).

[0039] 6. How to install a tension accordion door Fig. 5 is an explanatory diagram for explaining a method for installing the tension-type telescopic rail according to the embodiment. Fig. 6 is an explanatory diagram for explaining a method for suspending the accordion door body according to the embodiment on the tension-type telescopic rail. The tension-type accordion door 1 is installed, for example, by the following steps (I) to (VI).

[0040] (I) Before hanging the accordion door body 11, the tension-type telescopic rail 13 is turned upside down and adjusted to a shorter length, then turned upside down again to return to the normal position, and the end cap 13C of the outer rail 13out is pressed against the left wall surface 14L (Fig. 5). Note that, as shown on the right side of Fig. 5, the cover 17 has been removed in advance, so the cutout portion 16 is exposed at this point. (II) The inner rail 13in is extended from the outer rail 13out, and the end cap 13C of the inner rail 13in is pressed against the right wall surface 14R (FIG. 5). (III) After checking that the posture of the tension-type telescopic rail 13 is correct, push down the lock lever 15 of the inner rail 13in to fix the tension-type telescopic rail 13 between the left and right wall surfaces 14L, 14R (enlarged view in the upper right of Figure 5). (IV) After checking that the tension-type telescopic rail 13 is properly fixed to the left and right wall surfaces 14L, 14R by gently pulling it downward with your hand, proceed to step (VI). However, if the fixation is loose or the tension-type telescopic rail 13 is tilted, proceed to step (V) without proceeding to step (VI). (V) Release the lock lever 15 and then return to step (I). (VI) As shown in Figure 6, hold the folded accordion door body 11 with your hand and insert, for example, the left leading runner 12 at the top end of the accordion door body 11 into the inside of the tension-type telescopic rail 13 (runner storage chamber 13B in Figure 1) by bringing it close to the cutout 16. Next, insert the multiple intermediate runners 120, ..., 120 in order from the left into the runner storage chamber 13B, and finally insert the right leading runner 12 into the runner storage chamber 13B. Thereafter, release your hand from the accordion door body 11 to hang it down and attach the cover 17 to the cutout 16. This completes the installation of the tension-type accordion door 1.

[0041] Here, the above-mentioned cutout portion 16 exposes the runner storage chamber 13B from the front to the bottom of the tension-type telescopic rail 13, so in the above-mentioned procedure (VI), the user holds the body of his / her accordion door main body 11 while moving the runners (the left leading runner 12, the middle runners 120, ..., 120, the right leading runner 12) closer to the cutout portion 16 in order, so that all the runners can be stored in the runner storage chamber 13B. At this time, the hanging rod 12R of the left leading runner 12 is provided with a spacer 121 for maintaining the left leading runner 12 in an upright state, so that the head 12HD of the left leading runner 12 does not tilt obliquely, and the head 12HD of the left leading runner 12 does not get embedded downward through the opening of the fabric (cloth). Therefore, in the procedure (VI), the user does not need to adjust the posture of the left leading runner 12 with his / her hands, and can continue to hold the accordion door main body 11 with his / her hands. Then, when the left leading runner 12 is accommodated in the runner accommodating chamber 13B, the posture of the accordion door body 11 becomes stable, so that the adjacent intermediate runner 120 is also smoothly accommodated in the runner accommodating chamber 13B, and the adjacent intermediate runner 120 is also smoothly accommodated in the runner accommodating chamber 13B. By repeating this, all the runners, including the right leading runner 12, are sequentially and smoothly accommodated in the runner accommodating chamber 13B. Therefore, the work of hanging the accordion door body 11 (step VI) can be easily performed after the tension-type telescopic rail 13 is installed (after steps I to IV).

[0042] 7. Effects of the embodiment As described above, the tension-type accordion door 1 according to this embodiment has a cutout 16 provided from the front to the bottom of the tension-type telescopic rail 13, and multiple runners (left leading runner 12, middle runners 120, ..., 120, right leading runner 12) can be inserted sequentially from the cutout 16, so that the tension-type telescopic rail 13 can be installed on the left and right wall surfaces 14L, 14R and then the accordion door body 11 can be suspended. Therefore, when installing the tension-type telescopic rail 13 on the pair of wall surfaces 14L, 14R, the user does not need to support the heavy accordion door body 11 by hand, so the possibility of the tension-type telescopic rail 13 being tilted or loosened is suppressed to a low level. In addition, the tension-type telescopic rail 13 according to this embodiment is installed on the wall surfaces 14L, 14R without the accordion door body 11 being suspended, so that it is easy to adjust the tilt or loosen (reinstall) using the inversion release function of the shortening stopper 131. Therefore, according to this embodiment, a tension-type accordion door 1 that can be easily installed on a wall surface is realized.

[0043] 8.Other As described above, the preferred embodiment of the present invention has been described, but the present invention is not limited to the above embodiment, and various modifications are possible within the scope of not departing from or changing the technical concept of the present invention. For example, in the above-mentioned procedure (VI), the order of the runners accommodated in the runner accommodation chamber 13B is "from left to right", but it is also possible to arrange it "from right to left". In addition, in the above-mentioned embodiment, the spacers 121 for maintaining the upright state are installed only on the left and right leading runners 12, 12, but similar spacers may be provided on each of the multiple intermediate runners 120, ..., 120. [Explanation of symbols]

[0044] 1. Accordion door with tension rod 11 Accordion door body 12 Leading Runner 120 Middle Runner 12B Runner body 12S shaft 12W wheels 12R hanging rod 12C Clamp section 121 Spacer 121T Tsubabe 12H mounting hole 13 Tension-type telescopic rail 13out outer rail 13in inner rail 13C End Cap 13S Slit 13U Stopper Containment Room 13B Runner Containment Room 14L Left wall 14R right wall 15 Lock lever 16 Notch 16A Top 16B Cut 16C Left and right sides 17 Cover 17A Upper engaging part 17B Left and right engagement parts 17C Left and right engagement parts 17D hook part 18 Core material 20. Sidebar 21 Toride 22M Magnet 22R Magnet receiving plate 100 Tension-type accordion door 101 Accordion door body 102 Runner 103 Tension-type telescopic rail 103out outer rail 103in inner rail 104L Left wall 104R Right wall 105 Lock lever

Claims

1. An accordion door body that can be folded like a bellows and expandable in the horizontal direction; A plurality of runners attached side by side to the upper end of the accordion door body; A substantially rectangular cylindrical tension-type telescopic rail that is installed so as to press against a pair of opposing wall surfaces and suspends the plurality of runners in a slidable manner; a cutout portion provided from the front or back surface of the tension-type telescopic rail to the bottom surface, into which the plurality of runners attached to the upper end of the accordion door body can be sequentially inserted; A tension-type accordion door characterized by comprising:

2. The tension-type accordion door according to claim 1, A spacer is provided around the suspension rod of at least the leading runner that is to be inserted first into the notch among the plurality of runners, in order to maintain the leading runner in an upright state. A tension-type accordion door.

3. The tension-type accordion door according to claim 1, The tension-type telescopic rail includes a shortening stopper that engages an outer rail and an inner rail of the tension-type telescopic rail so that the length of the tension-type telescopic rail is not shortened inadvertently; The shortening stopper has an inversion release function that releases the lock when the user inverts the posture of the tension-type telescopic rail in the locked state. A tension-type accordion door.

4. The tension-type accordion door according to claim 1, The present invention further includes a cover that can be fitted into the cutout portion, and when fitted into the cutout portion, the cover gives the surface of the tension-type telescopic rail a flat appearance and ensures the guide function of the tension-type telescopic rail for the runner. A tension-type accordion door.

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