JP2009097179A - Installation structure of sliding door rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation structure of a sliding door rail enabling an end cap fitted to the lower end of a door rabbet recess to be installed on the sliding door rail merely by fitting without using a fixture. <P>SOLUTION: In this installation structure of a sliding door rail, the end cap 2 is fitted to the end 1a of the sliding door rail 1 directly installed on a floor surface and formed of an aluminum structural angle. The end cap 2 is fitted to the lower end of the door rabbet recess 4 formed in the inner surface 3a of the vertical frame 3 of a sliding door frame installed in the installation opening of a sliding door. The sliding door rail 1 is installed on the floor surface. The end cap 2 is detachably fitted by holding the end 1a of the sliding door rail 1 from the upper and lower sides. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sliding door rail mounting structure that is directly attached to a floor and made of an aluminum mold.

  FIG. 8 is a diagram for explaining a construction example of a conventional sliding door rail. FIG. 8A is a partial perspective view showing a door-drilling groove formed in the sliding door frame, FIG. 8B is a schematic plan view showing the positional relationship between the sliding door rail and the door-drilling groove, and FIG. It is a schematic plan view for demonstrating the positioning operation of a rail.

  As shown in FIG. 8 (a), the conventional sliding door rail is formed with a door-drilling groove 104 that runs vertically on the inner surface 103a of the vertical frame 103 of the sliding door frame, and the sliding door is located at the position indicated by the two-dot chain line. The rail 101 is directly attached. As shown in FIG. 8B, the sliding door rail 101 must be constructed so that the end portion 105 a of the sliding door 105 correctly enters the door drilling groove 104 when the sliding door 105 is pulled toward the vertical frame 103. Therefore, it is necessary to attach the sliding door rail 101 after correctly aligning the traveling groove 101a of the sliding door rail 101 with the center of the width direction of the door-drilling concave groove 104. For this reason, conventionally, as shown in FIG. 8 (c), it is generally performed to place the pattern paper 110 for alignment.

  Patent Document 1 teaches a method of attaching a sill having a sliding door groove to a frame. In this method, a vertical frame connecting plate having the same vertical thickness as the vertical thickness of the sill is attached to the edge of the sill, and the sill is attached while the vertical frame connecting plate is housed in the door. ing.

  The plan view shape of such a saddle frame connecting plate is a shape that fills the lower end of the door-drilling groove, and has a protrusion that protrudes toward the sill side. The hook frame connecting plate can be temporarily fixed to the sill by engaging with the groove, and the hook frame connecting plate is screwed and integrated with the sill, and in that state, the hook frame connecting plate is stored in the door. Let the sill be installed.

Therefore, since it can construct in the state which fixed the collar frame connection plate to the sill, there is an advantage that workability is good and the sill can be easily positioned during construction.
JP 2007-92340 A

  However, because it uses screws and other fasteners, it is not compatible with thin sliding door rails, especially aluminum sliding door rails that are widely used recently to make them barrier free. I want. In addition, it is difficult to integrally mold the sliding door rail and the connecting tool. Therefore, the connecting tool having the same structure as that of the frame connecting plate described in the above document cannot be used. In the construction of the sliding door rail of the mold material, it is general that no member is accommodated in the lower end portion of the door jagged groove, and a dent gap is formed in the lower end portion after the construction. Therefore, the sliding door rail is usually positioned by the method using the pattern 110 shown in FIG.

  The present invention has been proposed in view of such circumstances, and its purpose is to use an end cap that is inserted into the lower end of the door-drilling groove without using a fixture such as a screw. The object is to provide a sliding door rail mounting structure that can be attached to a sliding door rail simply by fitting. Further, it is included in the purpose of facilitating positioning of the mounting position of the sliding door rail.

  In order to achieve the above object, the sliding door rail mounting structure according to claim 1 is configured such that an end cap is fitted to an end portion of a sliding door rail that is directly attached to a floor surface and is made of an aluminum mold, The sliding door rail mounting structure is configured such that the sliding door rail is attached to the floor surface by being fitted into the lower end portion of the door pocket groove formed on the inner surface of the vertical frame of the sliding door frame attached to the mounting opening of the sliding door. The end cap is characterized in that the end portion of the sliding door rail is sandwiched and fitted from above and below.

  According to a second aspect of the present invention, the sliding door rail is formed with a running groove for running the sliding door car, and the end cap is structured to be attached to the sliding door rail so that its center position coincides with the running groove. ing.

  According to a third aspect of the present invention, the back surface of the sliding door rail is formed with protruding protrusions formed by running grooves and a plurality of reinforcing ribs parallel to the protruding protrusions on both sides of the protruding protrusion, and an end cap. Is a plurality of projecting pieces that protrude from the lower part of the end cap and project into the end of the groove formed by the protruding strips and the plurality of reinforcing ribs. And the end portion of the sliding door rail is sandwiched between the upper piece portion and the plurality of protruding pieces.

  According to a fourth aspect of the present invention, a pair of guide surfaces that are widened toward the rail are formed in the door-drilling groove, and both end portions of the end cap have a notch and a tapered shape corresponding to the guide surface. These guide end portions are provided opposite to each other, and the guide end portions can be cut off by cutting.

  According to the sliding door rail mounting structure according to claim 1, as the structure in which the end cap that is inserted and arranged in the lower end portion of the door pocket groove is sandwiched and fitted to the end portion of the sliding door rail from above and below. Therefore, the end cap can be attached to and integrated with the sliding door rail without using a fixing tool such as a screw, and the sliding door rail can be attached while being held as one piece. In particular, since a fixing tool such as a screw is not used, it is useful for construction of a thin sliding door rail corresponding to barrier-free. Moreover, even if the end cap is attached by mistake, it can be easily removed.

  In addition, the structure is such that the end cap can be securely fitted to the end of the sliding door rail, so it will not come off easily after the end cap has been attached once, and may be lost due to dropout during field work. There is almost no.

  According to the sliding door rail mounting structure according to claim 2, since the end cap is structured to be attached to the sliding door rail so that the center position thereof coincides with the traveling groove, the sliding door rail is installed in consideration of positioning. Can be done easily.

  According to the sliding door rail mounting structure according to claim 3, the end cap has a structure in which the upper piece is brought into contact with the upper surface of the sliding door rail, and the protruding piece is fitted into the groove on the rear surface to be sandwiched from above and below. Therefore, the main-body part formed in the thin wall of the sliding door rail can be clamped reliably. In particular, since the projecting piece is inserted into the groove, even if the end cap is attached, it does not protrude below the reinforcing rib, and even if the sliding door rail is attached to the floor surface, it protrudes beyond the height dimension of the sliding door rail. Never do. Moreover, since it is the structure which inserts a some protrusion piece, there is no possibility that a sliding door rail and an edge part cap may shift | deviate in the width direction after fitting.

  According to the sliding door rail mounting structure according to claim 4, since both side edge portions of the end cap are provided with tapered guide end portions corresponding to the guide surfaces having notches, the guide If the end portion is cut out by cutting, it is possible to attach a plurality of end caps to each end portion of the plurality of sliding door rails arranged in parallel.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1: is a schematic plan view for demonstrating the sliding door rail attachment structure of this invention, and FIG. 1 (a)-(c) has shown an example of the construction procedure to the vertical frame of a sliding door rail. In addition, illustration of a sliding door is abbreviate | omitted in FIG.

  The sliding door used in this example is composed of a door sliding door provided at the lower end with a plurality of door cars that run on the running groove 1b of the sliding door rail 1 (see FIGS. 6 and 7 for the sliding doors; the doors are not shown). It is installed on the sliding door rail 1 attached to the mounting opening of the sliding door so that it can run. On the inner surface 3a of the vertical frame 3 constituting the open sliding door frame, a door drilling groove 4 having a door contact surface 4b against which an end of the sliding door comes into contact when the sliding door is drawn to the vertical frame 3 is formed. Yes. In addition, a pair of guide surfaces 4a and 4a that are widened toward the rail side are formed at both ends of the door drilling groove 4.

  The sliding door rail 1 is obtained by cutting a long aluminum mold material to an appropriate size, placed directly on the floor surface, and directly screwed to the floor. In addition, in this figure, illustration is abbreviate | omitted about the screw hole for screw-fixing the sliding door rail 1 to a floor surface. Reference numeral 1c denotes a non-slip thin groove formed on the rail surface.

  Since the sliding door rail 1 shown in this example is directly attached to an unprocessed floor surface, considering barrier-free, it is formed as low as possible even if including the height of reinforcing ribs that will be described later. It is desirable that

  An end cap 2 is fitted to one or both ends 1 a of the sliding door rail 1, and the fitted end cap 2 is connected to the lower end portion of the door punching groove 4 formed in the vertical frame 3. The sliding door rail 1 is directly attached to the floor surface (see FIGS. 1A to 1C). As shown in FIG. 1C, the shape of the end cap 2 in plan view is such that it can be fitted into the door-drilling groove 4 without a gap.

  As described above, since the end cap 2 is fitted into the door-drilling groove 4 without a gap, a recessed gap is not formed in the lower end of the door-drilling groove 4 after the sliding door rail 1 is constructed. Therefore, dust does not collect easily, and it is easy to clean and looks good. Of course, since the sliding door rail 1 is screwed to the floor, there is no possibility that the end cap 2 will come off.

  The end cap 2 is formed of resin, and as shown in FIG. 1, the rail-side surface of the end cap 2 is formed with a bowl-shaped upper piece 2a in the upper portion and a plurality of portions in the lower portion. The projecting piece 2b is formed to project toward the rail end 1a, and has a structure in which the end 1a of the sliding door rail 1 is sandwiched and fitted by the upper and lower pieces 2a and 2b. Details of the shape and structure of each member and the sandwiching and coupling structure will be described later with reference to FIGS.

  Thus, since the end cap 2 is sandwiched from the upper and lower sides with respect to the sliding door rail 1, it can be strongly coupled to the sliding door rail 1 with elastic force, and when the sliding door rail 1 is directly attached and constructed. The mounting operation can be performed while holding the end cap 2 as a unit.

  Next, detailed shapes and structures of the end 1a and the end cap 2 of the sliding door rail 1 will be described with reference to FIGS.

  FIGS. 2A and 2B are diagrams for explaining the structures of the sliding door rail 1 and the end cap 2 and their combined structure. FIG. 2A shows the sliding door rail 1, FIG. 2B shows the end cap 2, and FIG. It is each perspective view of the state which attached the edge part cap 2 to the sliding door rail 1. FIG. 3A, 3 </ b> B, and 3 </ b> C are a plan view, a front view, and a vertical sectional view taken along line AA of the end cap 2, respectively. 4A and 4B are a right side view and a left side view, respectively, of the sliding door rail 1, and FIGS. 4A and 4B show a sliding door for explaining the coupling with the end cap 2. FIG. A plan view of the end cap 2 is shown corresponding to the view of the rail 1. FIG. 4C is a vertical cross-sectional view taken along the line BB showing the coupling state of the sliding door rail 1 and the end cap 2.

  As shown in FIGS. 2 and 3, the end cap 2 has an upper piece 2 a formed on the upper portion thereof toward the rail side from the main body 2 e and two protruding pieces 2 b and 2 b protruding from the lower edge. Are formed at symmetrical positions. A tip portion of the protruding piece 2b is provided with an invitation portion 2ba that has an upper surface that is tapered to facilitate insertion. Further, at both ends of the main body 2e, guide end portions 2c and 2c having a tapering shape toward the vertical frame 3 are provided opposite to each other, and a notch 2d is formed between the main body 2e and the guide end 2c. ing. By cutting the notch 2d, the guide end 2c can be excised from the main body 2e. An example of its use will be described later with reference to FIGS. In order to reduce the amount of resin, a back groove 2f is formed in the back surface portion of the end cap 2 that is in contact with the door-drilling groove 4.

  The end cap 2 does not cut the guide end 2c, and when the sliding door rail 1 is constructed, both guide ends 2c and 2c abut against the both guide surfaces 4a and 4a of the door-drilling groove 4. As shown in FIG.

  On the other hand, as shown in FIG. 4, the sliding door rail 1 shown in this example is provided with a running groove 1b for running a sliding door door at a position shifted from the center (see FIG. 1). A plurality of narrow grooves 1c for preventing slipping are formed on both sides of the running groove 1b. Further, on the back surface of the sliding door rail 1, a protruding strip 1d formed by providing a running groove 1b on the front surface and a plurality of reinforcing ribs 1e, 1e parallel to the protruding strip 1d on both sides of the protruding strip 1d. Are projectingly formed, and a plurality of groove portions 1f, 1f,... Are formed by the protruding strip portion 1d and the plurality of reinforcing ribs 1e, 1e,. The sliding door rail 1 is directly attached with screws so that the reinforcing ribs 1e, 1e,...

  In addition, the sliding door rail 1 is directly attached barrier-free, the main body 1g is formed thin, and the reinforcing rib 1e is also formed at substantially the same height as the ridge 1d. It is formed in a thin plate shape with reduced dimensions.

  When the sliding door rail 1 is constructed, as shown in FIG. 4, the upper piece 2a of the end cap 2 is brought into contact with the upper surface of the end 1a of the sliding door rail 1, and the protruding piece 2b is formed on the protruding strip 1d. The sliding door rail 1 and the end cap 2 are combined and integrated so as to be fitted in the adjacent groove portions 1f. That is, the end cap 2 has a structure in which the end cap 2 is sandwiched from above and below the end portion 1a of the sliding door rail 1 and cannot be easily removed. 4A shows the right end of the sliding door rail 1 and FIG. 4B shows the left end, but as shown in the drawing, the end cap 2 having the same shape is formed on both the left and right ends. Can be used.

  As described above, since the sliding door rail 1 is for direct attachment, it is necessary to form the height dimension of the sliding door rail 1 small to reduce the protruding height from the floor surface in consideration of barrier-free. According to the fitting and coupling structure shown in the present example, the end cap 2 is stabilized on such a thin sliding door rail 1 without using a fixing tool such as a screw because the structure is sandwiched from above and below. Can be fitted.

  Further, since the sliding door rail 1 is formed in a thin plate shape with a small height dimension, the end cap 2 has a small height dimension according to the shape of the end portion of the sliding door rail 1, and is extremely small as a whole. It is formed as a member. Therefore, if the fitting property to the sliding door rail 1 is weak, there is a possibility that it will drop off and be lost immediately, but such a fear can be avoided by adopting a structure that is sandwiched from above and below.

  Further, as described above, the projecting pieces 2b at the left and right symmetrical positions of the end cap 2 are inserted into the left and right groove portions 1f of the running groove 1b (projection strip portion 1d), and the end cap 2 is fitted to the sliding door rail 1. In this state, the center position C of the end cap 2 matches the position of the traveling groove 1b.

  Therefore, since the end cap 2 is fitted into the lower end portion of the door-drilling groove 4 without a gap, the sliding door rail 1 to which the end cap 2 is attached is housed in the door-drilling groove 4. If it is attached to the floor surface in this way, the running groove 1b of the sliding door rail 1 matches the center position of the door drilling groove 4. In other words, if the end cap 2 is fitted to the sliding door rail 1 for construction, positioning can be easily performed without being aware of positioning.

  Further, since the end cap 2 has a structure in which the protruding piece 2b is fitted into the groove 1f, the lower end of the end cap 2 is reinforced even if the end cap 2 is sandwiched and fitted to the sliding door rail 1 from above and below. It does not protrude below the rib 1e. Therefore, even if the sliding door rail 1 combined with the end cap 2 is attached to the floor surface, the sliding door rail 1 does not protrude beyond its height from the floor surface.

  In addition, in order to position the sliding door rail 1, the formation position of the protrusion piece 2b is not limited to what is shown in this example. That is, the protruding pieces 2b of the end cap 2 do not have to be formed in the left-right symmetric position, and may be any shape as long as they can be inserted into at least two of the plurality of grooves 1f, 1f,. In addition, it is desirable that the sliding door rail 1 and the end cap 2 have a positional relationship in which the movement of the protruding piece 2b in the width direction is regulated by the protruding strip portion 1d or the reinforcing rib 1e so that the sliding direction is not shifted in the width direction. For example, as in this example, when the protruding piece 2b is formed in such a manner that a gap is not formed in the width direction of the groove 1f when the protruding piece 2b is mounted in the groove 1f, the fitting property is very good. Moreover, in order to fit the end cap 2 more stably, it is desirable that two or more projecting pieces are mounted on the left and right sides of the protruding strip portion 1d.

  FIG. 5 is a schematic plan view showing an example of use of the end cap 2 with the guide end 2c cut away.

  In this example, the door-drilling groove 4 is formed corresponding to two sliding doors, and when the two sliding doors that run in parallel are drawn to the vertical frame 3, the respective end surfaces of the sliding doors are brought into contact with each other. The door contact surface 4a is formed continuously without partitioning. Moreover, the guide surface 4b is formed in both ends like the example of FIG.

  Two end caps 2 and 2 are used according to the shape and size of the door-drilling groove 4. That is, one end cap 2 cuts the right guide end 2c, and the other end cap 2 cuts the left guide end 2c so that the cut ends 2g and 2g are adjacent to each other. Attach the sliding door rails so that the both end caps 2 and 2 are housed in the lower end of the door-drilling groove 4 by attaching the both-end caps 2 and 2 to the respective ends of the two adjacent sliding door rails. .

  Thus, by simply excising the guide end portion 2c, it is possible to easily cope with the sliding door rail provided, and the construction considering the positioning of the sliding door rail in various modes can be easily performed. Further, if the end cap 2 is molded in correspondence with the dimensions of the sliding door rail 1, the adjacent both end caps 2 and 2 can be applied in a state of being in close contact with each other with almost no gap.

  Such an arrangement of the end caps 2 will be described with reference to the construction examples shown in FIGS.

  FIGS. 6A and 6B are diagrams showing an example of construction of a two-sliding door for single pulling, where FIG. 6A is a schematic plan view, and FIG. 6B is a perspective view showing an example of attaching the end cap 2 to the sliding door rail 1. is there. In addition, the sliding door illustrated on the right side in FIG. 6A is referred to as a right sliding door 5 (# 1), and the sliding door illustrated on the left side is referred to as a left sliding door 5 (# 2). The sliding door rail on which the right sliding door 5 (# 1) travels is called the inner sliding door rail 1 (# 1), and the sliding door rail on which the left sliding door 5 (# 2) travels is called the outer sliding door rail 1 (# 2). In addition, each sliding door rail 1 (# 1) and 1 (# 2) may be configured by connecting a plurality of rails.

  In the single sliding door, the outer sliding door rail 1 (# 2) corresponding to the left sliding door 5 (# 2) and the inner sliding door rail 1 (# 1) corresponding to the right sliding door 5 (# 1), It is attached in parallel between the vertical frames 3 and 3 provided on the left and right of the sliding door opening. On the left vertical frame 3 side, a retaining wall 6 is provided on the outer side of the outer sliding door rail 1 (# 2), and a door pocket is formed by the retaining wall 6.

  In this example, the two sliding doors 5, 5 can both be pulled toward the vertical frame 3 on the door pocket side, and when pulled, the end surfaces of the two sliding doors 5, 5 are for the two-sliding door of the vertical frame 3. It contacts the door contact surface 4a (see FIG. 1) of the door jagged groove 4. On the other hand, in the vertical frame 3 on the opposite (right) side, a door sliding groove 4 for a single sliding door with which only the right sliding door 5 (# 1) abuts is formed.

  As shown in FIG. 6 (b), two end caps in which one guide end 2c as shown in FIG. 5 is cut off at the end 1a on the door pocket side of the two sliding door rails 1 and 1 2 is attached so that the cut portions are adjacent to each other, and the end cap 2 that is not cut away from the guide end 2c is attached only to the inner sliding door rail 1 (# 1) on the opposite end 1a. . In addition, 7 in FIG.6 (b) is a screw hole.

  FIGS. 7A and 7B are diagrams showing an example of construction of a three-sliding door for single pulling, where FIG. 7A is a schematic plan view, and FIG. 7B is a perspective view showing an example of attaching the end cap 2 to the sliding door rail 1. is there. The sliding door illustrated on the right side in FIG. 7A is the right sliding door 5 (# 1), the sliding door illustrated in the center is the middle sliding door 5 (# 3), and the sliding door illustrated on the left side is the left sliding door 5 (# 2). Call. The sliding door rail on which the right sliding door 5 (# 1) travels is the inner sliding door rail 1 (# 1), the sliding door rail on which the middle sliding door 5 (# 3) travels is the middle sliding door rail 1 (# 3), and the left sliding door 5 (# The sliding door rail on which 2) travels is called the outer sliding door rail 1 (# 2).

  In the single sliding door, the vertical sliding frame 3 is provided with the outer sliding door rail 1 (# 2), the middle sliding door rail 1 (# 3), and the inner sliding door rail 1 (# 1) on the left and right sides of the sliding door opening. 3 are mounted in parallel. On the left vertical frame 3 side, a retaining wall 6 is provided on the outer side of the outer sliding door rail 1 (# 2), and a door pocket is formed by the retaining wall 6.

  In this example, all of the three sliding doors 5, 5, 5 can be drawn to the vertical frame 3 on the door pocket side, and when pulled, the end surfaces of the three sliding doors 5, 5, 5 are 3 of the vertical frame 3. It contacts the door contact surface 4a (refer to FIG. 1) of the door-drilling groove 4 for the sheet sliding door. On the other hand, in the vertical frame 3 on the opposite (right) side, a door sliding groove 4 for a single sliding door with which only the right sliding door 5 (# 1) abuts is formed.

  As shown in FIG. 7B, end caps 2, 2, 2 crafted in different shapes are attached to the end portions 1 a on the door pocket side of the three sliding door rails 1, 1, 1. That is, the outer end door rail 1 (# 2) has an end cap 2 in which one guide end 2c is cut out, and the inner end door rail 1 (# 3) has an end cap in which both guide end portions 2c and 2c are cut. 2, the inner sliding door rail 1 (# 1) has an end cap 2 obtained by cutting away the guide end 2c opposite to the end cap 2 attached to the outer sliding door rail 1 (# 2). They are attached so as to be adjacent to each other. On the other hand, an end cap 2 that is not cut away from the guide end 2c is attached only to the inner sliding door rail 1 (# 1) at the opposite end 1a.

(A)-(c) is a figure for demonstrating the construction procedure of the attachment structure of the sliding door rail of this invention. (A) is a perspective view of a sliding door rail, (b) is a perspective view of an end cap, and (c) is a perspective view showing a state in which the end cap is attached to the end of the sliding door rail. (A) is a top view of an end cap, (b) is a front view, (c) is an AA line longitudinal cross-sectional view. (A), (b) is a figure for demonstrating the combination of the right-side end surface of a sliding door rail, the left-side end surface, and an end cap (plan view), respectively, (c) is a drawing of a sliding door rail and an end cap. It is a BB line longitudinal section showing a combined state. It is the schematic plan view which showed the example of combined use of the edge part cap which cut off the guide edge part. It is the figure which showed the construction example (two sheets) of a sliding door rail, (a) is a schematic plan view, (b) is the perspective view which showed the example of attachment to the sliding door rail of an end part cap. It is the figure which showed the construction other example (three sheets) of a sliding door rail, (a) is a schematic plan view, (b) is the perspective view which showed the example of attachment to the sliding door rail of an edge part cap. It is a figure for demonstrating the construction example of the conventional sliding door rail, (a) is a fragmentary perspective view which shows the door-drilling ditch | groove formed in the sliding door frame, (b) is the position of a sliding door rail and a door-drilling ditch | groove. The schematic plan view which showed the relationship, (c) is a schematic plan view for demonstrating the positioning operation | movement of a sliding door rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door rail 1a End part 1b Running groove 1d Projection part 1e Reinforcement rib 1f Groove part 2 End cap 2a Upper piece part 2b Protrusion piece 2c Guide end part 2d Cut 3 Vertical frame 3a Inner surface 4 Door-drilling ditch 4b Guide surface 5 sliding door

Claims (4)

An end cap is fitted to the end of a sliding door rail made of an aluminum mold that is directly attached to the floor, and the end cap is formed on the inner surface of the vertical frame of the sliding door frame attached to the mounting opening of the sliding door. It is a sliding door rail mounting structure that is fitted into the lower end of the tapping groove and is attached to the floor surface,
The sliding structure of the sliding door rail is characterized in that the end cap is configured to be fitted by sandwiching an end of the sliding door rail from above and below. In claim 1,
The sliding door rail is formed with a running groove for running the sliding door car.
A sliding door rail mounting structure in which the end cap is attached to the sliding door rail so that a center position thereof coincides with the traveling groove. In claim 2,
On the back surface of the sliding door rail, a protruding ridge formed by the running groove and a plurality of reinforcing ribs parallel to the protruding ridge on both sides of the protruding ridge are formed.
The end cap is an end portion of a groove portion that is formed by the upper strip portion that contacts the upper surface of the end portion of the sliding door rail and the lower portion of the end cap, and is formed by the protruding strip portion and the plurality of reinforcing ribs. A sliding door rail mounting structure comprising a plurality of projecting pieces fitted into the upper end portion and the plurality of projecting pieces sandwiching an end portion of the sliding door rail. In any one of Claims 1-3,
A pair of guide surfaces that expand to the rail side are formed in the door drilling groove,
On both side edge portions of the end cap, a tapered guide end portion corresponding to the guide surface having a notch is provided.
A sliding door rail mounting structure in which the guide end portion can be cut off by the cut.

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