Expansion gate door

Abstract

To provide an expansion gate door capable of installing an expansion door body different in depth dimension from an existing gatepost.SOLUTION: An expansion gate door 1 connects an expansion door body 2A to an existing gatepost 10A via an attachment 5, the expansion door body 10A has a depth size different from that of the gatepost 2A, and the attachment 5 includes a gatepost attachment portion 51 attached to the gatepost 2A, and a door body connecting portion 61 disposed at a position different from the position of the gatepost attachment portion 51 in the Z-axis direction and to which the expansion door body 10A is connected.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a telescopic gate having a telescopic door body that can be attached to an existing gate post. [Background technology]

[0002] Conventionally, there is known a telescopic gate that is remodeled by attaching a new telescopic gate body (telescopic door body) to an existing gate post (see Patent Document 1). The telescopic gate body has a hanging frame and a door end frame, and an attachment for the hanging post is provided on the existing gate post on the hanging side, and an attachment for the door end post is provided on the existing gate post on the door end side. The hanging frame is connected to the attachment for the hanging post, and the door end frame is engageable with the attachment for the door end post. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-122297 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the telescopic gate described in Patent Document 1 has the front surfaces of the gate post on the door end side, the attachment for the door end gate post, and the door end frame aligned on the same plane, so a telescopic gate main body with the same expected dimensions as the existing gate post can be attached, but it is not envisaged that a telescopic gate main body with smaller expected dimensions than the existing telescopic gate main body before renovation will be attached to the existing gate post, and it is not configured to newly install a telescopic gate main body with different expected dimensions from the existing gate post. However, there are cases where it is desired to install a new telescopic gate main body with different expected dimensions from the existing gate post.

[0005] An object of the present invention is to provide a telescopic gate that can be installed with a telescopic door body having a projected dimension different from that of an existing gate post. [Means for solving the problem]

[0006] The telescopic gate of the present invention is a telescopic gate in which a telescopic door body is connected to an existing gate post via an attachment, wherein the telescopic door body has a different projected dimension relative to the gate post, and the attachment has a gate post mounting portion that is attached to the gate post, and a door body connecting portion that is positioned at a different position in the projected direction relative to the position of the gate post mounting portion and to which the telescopic door body is connected. The renovation method of the present invention is a method for constructing a telescopic gate by connecting a telescopic door body to an existing gate post via an attachment, and is characterized in that the telescopic door body is prepared with a different projected dimension relative to the gate post, and the attachment has a gate post mounting portion to be attached to the gate post, and a door body connecting portion which is positioned in a different projected position relative to the position of the gate post mounting portion and to which the telescopic door body is connected, and the gate post mounting portion is attached to the gate post, and the telescopic door body is attached to the door body connecting portion. Effect of the Invention

[0007] According to the present invention, it is possible to provide a telescopic gate that can be installed with a telescopic door body having a different expected dimension from that of an existing gate post. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an overall explanatory diagram showing an extension gate according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view showing a main part of the retractable gate according to the embodiment. [Diagram 3] 4A to 4C are explanatory diagrams showing a procedure for mounting an attachment of the telescopic gate according to the embodiment. [Figure 4] FIG. 4 is an explanatory diagram showing a procedure for renovating the retractable gate according to the embodiment. [Diagram 5] FIG. 4 is an explanatory diagram showing how to attach an attachment to the retractable gate according to the embodiment. [Figure 6] FIG. 4 is an overall explanatory diagram showing a first modified example of the telescopic gate according to the embodiment. [Figure 7]FIG. 11 is an explanatory diagram showing a main part of a second modified example of the telescopic gate according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Configuration of this embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In Fig. 1 and Fig. 2, the retractable gate 1 according to this embodiment is installed on the installation surface GL (ground) to open and close the entrance to and from the site (site side and road side) of a car parking lot, etc., and is configured as a double-leaf type with a pair of existing left and right gate posts 2A, 2B, the gate post 2A, a retractable retractable door body 10A whose hanging side is attached to the gate post 2A via an attachment 5, and a retractable door body 10B whose hanging side is attached to the gate post 2B via an attachment 5. The retractable door bodies 10A, 10B are configured so that they can be locked and unlocked by each other at their respective door ends. Note that Fig. 1 shows a front view seen from the road side (outside the site) and a plan view seen from above, and Fig. 2 is a cross-sectional view showing an enlarged main part with the upper side of the paper as the road side and the lower side of the paper as the site side (inside the site). In the following description, the left-right direction of the telescopic gate 1 is the X-axis direction, the up-down direction of the telescopic gate 1 is the Y-axis direction, and the projection direction of the telescopic gate 1 (into and out of the premises) is the Z-axis direction. The X, Y, and Z axis directions are mutually perpendicular.

[0010] The gate post 2A is made of an aluminum extrusion material, and as shown in Figures 2 and 3, it has a pair of hollow frame parts 21 along the Y-axis direction facing each other in the Z-axis direction, and a connector 25 that connects the pair of hollow frame parts 21 in the Z-axis direction. The hollow frame part 21 has a frame body 22, a hanging part 23 consisting of an extending piece part that extends inward in the Z-axis direction from the frame body 22, and a groove-shaped fixed part 24 that is located outside the Z-axis direction relative to the position of the hanging part 23. Here, in this embodiment, the inside in the Z-axis direction means the center side of the telescopic gate 1 in the Z-axis direction, and the outside in the Z-axis direction means the side away from the center side of the telescopic gate 1 in the Z-axis direction. The frame body 22 has frame sight pieces 221, 222 along the X-axis direction, and frame projection pieces 223, 224 that are continuous with the frame sight pieces 221, 222 and are continuous with the Z-axis direction, with the frame sight pieces 221, 222 facing each other in the Z-axis direction, and the frame projection pieces 223, 224 facing each other in the X-axis direction. The frame sight piece 222 is disposed on the inside of the frame sight piece 221 in the Z-axis direction, and the frame projection piece 224 is disposed on the inside of the frame projection piece 223 in the X-axis direction. The frame projection piece 224 has an opening 224A through which a fixing screw 55, which will be described later, is inserted. The frame body 22 also has a continuous piece 225 between the frame projection pieces 223, 224 that is continuous with the frame sight pieces 221, 222 and to which the connector 25 is screwed. The continuous piece 225 has a recess 225A recessed outward in the X-axis direction, and is screwed to the connector 25 extending in the Z-axis direction at this recess 225A. The hanging portion 23 extends inward in the Z-axis direction from the continuous portion of the frame sight piece 222 and the frame recessed piece 224, and its tip is bent outward in the X-axis direction (toward the frame sight piece 221). The fixed portion 24 is formed in a groove shape along the Y-axis direction by the above-mentioned frame sight pieces 221, 222, the frame sight piece 224 in which the opening 224A is formed, and the continuous piece 225. In the groove interior 24A formed by the fixed portion 24, a back plate 54 described later is disposed. The gate post 2B is arranged in the opposite direction to the gate post 2A, but is generally constructed in the same manner, so the components of the gate post 2B are appropriately assigned the same reference numerals as the components of the gate post 2A and detailed explanations are omitted. In this embodiment, since the retractable gate 1 is a double-opening type, both of the gate posts 2A and 2B are gate posts on the hanging side.

[0011] The telescopic door body 10A comprises a pantograph mechanism 11 as a telescopic mechanism in which multiple vertical bars 12 aligned along the Y-axis direction are connected at equal intervals in the X-axis direction and which is capable of telescopically expanding and contracting in the X-axis direction, a door-end side vertical frame 13 (frame body) attached to the door-end side end of the pantograph mechanism 11 in the X-axis direction, and a hanging-side vertical frame 14 (frame body) attached to the hanging-side end of the pantograph mechanism 11 in the X-axis direction. The telescopic door body 10B is configured in the opposite left-right direction to the telescopic door body 10A, but is configured in a similar manner. Therefore, the components of the telescopic door body 10B are appropriately assigned the same symbols as the components of the telescopic door body 10A, and detailed descriptions thereof will be omitted.

[0012] The pantograph mechanism 11 is composed of multiple connecting members 111 that are connected to each other so as to be rotatable across each other, and when extended, the multiple connecting members 111 form multiple diamond-shaped spaces, and when contracted, the multiple connecting members 111 crush and eliminate the spaces. Of the multiple connecting members 111, the ends of the connecting members 111 located on the door end side are attached to the vertical frame 13 on the door end side, and the ends of the connecting members 111 located on the hanging side are rotatably connected to one side in the Z-axis direction via hinge members 15 etc.

[0013] As the vertical frames 13 and 14 are made of the same aluminum extrusion material, the following description will focus mainly on the vertical frame 14, and will omit a description of the vertical frame 13. The vertical frame 13 of the telescopic door body 10A is fitted with either a lock or a lock receiver, and the vertical frame 13 of the telescopic door body 10B is fitted with the other of a lock or a lock receiver. As shown in Fig. 2, the vertical frame 14 has a pair of frame identification pieces 141 facing each other in the Z-axis direction, and a frame recessed piece 142 along the Z-axis direction that is continuous with the pair of frame identification pieces, and is formed in a concave shape so as to open inward (door end side) in the Z-axis direction. The pair of frame identification pieces 141 each have a groove forming part 144 that forms a groove part 143 along the Y-axis direction and opens on the inside in the Z-axis direction, and the connecting member 111 of the pantograph mechanism 11 is rotatably connected via the rotating shaft 112 attached to the groove forming part 144. Here, the projection dimension in the Z-axis direction of the newly installed telescopic door body 10A, which is the projection dimension of the vertical frames 13 and 14 in this embodiment, is different from the projection dimension of the existing gateposts 2A and 2B, and in this embodiment, is set to a projection dimension smaller than the projection dimension of the gatepost 2A. The hinge member 15 is composed of an axis portion 151 and a pair of plate portions 152, 153, one plate portion 152 is screwed to the stile front piece portion 142, and the other plate portion 153 is attached to a plate-shaped connecting member 16, and a pair of connected portions 161 of the connecting member 16 are attached to the attachment 5. The hinge member 15 and the connecting member 16 also form part of the telescopic door body 10A, and the vertical stile 14 is indirectly attached to the attachment 5 via the hinge member 15 and the connecting member 16.

[0014] There are attachments 5 for attaching the vertical frame 14 on the hanging side of the telescopic door body 10A to the gate post 2A, and attachments 5 for attaching the vertical frame 14 on the hanging side of the telescopic door body 10B to the gate post 2B. Since each attachment 5 is configured in the same way, the following will explain the attachment of the vertical frame 14 of the telescopic door body 10A to the gate post 2A, and will omit the explanation of the attachment of the vertical frame 14 of the telescopic door body 10B to the gate post 2B. The attachment 5, which attaches the vertical frame 14 of the retractable door body 10A to the gatepost 2A, is a pair of metal fittings provided in the Z-axis direction. The end of the attachment 5 is capped, but the dimension is the same as the dimension in the Y-axis direction of the portion of the gatepost 2A exposed upward from the installation surface GL, and the attachment 5 is arranged along the entire length of the gatepost A2 on the installation surface GL. For example, when the attachment 5 is composed of multiple pieces of material shorter than the gatepost 2A, the upper and lower ends of each piece material must be blocked, whereas in this embodiment, the end of the attachment 5, which is a through material, only needs to be blocked, so the number of caps used can be reduced. The distance in the Z-axis direction between the door body connecting parts 61 of the pair of attachments 5 is the same as the distance in the Z-axis direction between the pair of connected parts 161. 3A and 3B, the attachment 5 has a main body piece 50 extending in the Z-axis direction arranged along the hanging portion 23, a gatepost mounting portion 51 formed on the main body piece 50 and attached to the gatepost 2A, and a door body connecting portion 61 formed on the extendable door body 10A side of the main body piece 50 and to which the extendable door body 10A is connected. The door body connecting portion 61 is arranged at a different position in the Z-axis direction from the position of the gatepost mounting portion 51, and in this embodiment, the position of a groove forming portion 611 described later is arranged at a position inside in the Z-axis direction from the position of a fixing portion 53 described later. The gate post mounting portion 51 has a hanging portion 52 that is hung on the hanging portion 23 of the gate post 2A, and a fixing portion 53 that is positioned outside the hanging portion 52 in the Z axis direction and is fixed to the gate post 2A. The hanging portion 52 is formed into a hook shape at the inner end portion in the Z-axis direction of the main body piece 50, and has a bottom portion 521 bent in the X-axis direction from that end portion toward the gate post 2A side, and a return portion 522 bent outward in the Z-axis direction from the bottom portion 521, and the tip of the return portion 522 forms a guide portion 523 that is inclined away from the main body piece 50 toward the gate post 2A side. The fixing portion 53 is formed as a piece extending outward in the Z-axis direction from the main body piece 50, and is screwed and connected to a back plate 54 placed inside the groove 24A of the fixed portion 24 by a fixing screw 55 serving as a fastener. The gate post mounting part 51 configured in this manner is attached to the gate post 2A by hanging the hanging part 52 on the hanging part 23 and tightening the fixing screw 55 inserted into the fixing part 53 to clamp and fix the fixed part 24 between it and the back plate 54. The door body connecting part 61 has a groove forming part 611 formed on the telescopic door body 10A side with respect to the main body piece 50, and an extension part 612 extending inward in the Z-axis direction from the groove forming part 611. The groove forming part 611 opens on the telescopic door body 10A side and forms a groove along the Y-axis direction, and is located at a position inward in the Z-axis direction from the position of the fixing part 53. A back plate 56 is disposed in the groove interior 611A formed by this groove forming part 611, and a connecting screw 57 inserted into the connecting member 16 is screwed and connected to the back plate 56 by tightening the connecting screw 57. The extension part 612 is also disposed along the connecting member 16.

[0015] The above-mentioned double-leaf retractable gate 1 is remodeled to include retractable door bodies 10A, 10B with smaller projected dimensions by replacing the existing retractable door body 9 shown in Figure 4(A) as follows. The projected dimensions of the connecting part of the existing retractable door body 9 to the gate post 2A are made the same as the projected dimensions of the gate post 2A. First, the existing telescopic door body 9 is removed from the existing gate posts 2A and 2B. Meanwhile, telescopic door bodies 10A and 10B having smaller projected dimensions than the gate posts 2A and 2B are prepared. Next, as shown in FIG. 4B, the gatepost mounting portion 51 of the attachment 5 is attached to the gateposts 2A and 2B as described above, resulting in the state shown in FIG. 4C. The attachment 5 is attached to the gateposts 2A and 2B by sliding the back plate 54, which is temporarily fixed to the fixing portion 53 with the fixing screw 55, into the groove inside 24A of the fixed portion 24 in the Y-axis direction, and placing the hanging portion 52 on the hanging portion 23, and then tightening the fixing screw 55 to permanently fix it. Note that FIG. 5 shows the attachment 5 attached to the gateposts 2A and 2B, and here the fixing screw 55 is shown in an expanded form for the sake of convenience. In addition, a cap 8 for hiding the edge is attached to the upper end of the gateposts 2A and 2B. Finally, the new telescopic door bodies 10A, 10B, which have smaller expected dimensions than the gate pillars 2A, 2B, are attached to the door body connecting part 61 of the attachment 5, as shown in Fig. 4(D). The telescopic door bodies 10A, 10B are connected to the attachment 5 by sliding the back plate 56, which is temporarily connected to the connecting member 16 with the connecting screw 57, into the groove inside 611A formed in the groove forming part 611 of the door body connecting part 61 in the Y-axis direction, and then tightening the connecting screw 57 to perform the permanent connection. In this way, the existing telescopic door body 9 is replaced with new telescopic door bodies 10A, 10B with smaller projected dimensions to remodel into a telescopic gate 1. This eliminates the need to process the existing gate posts 2A, 2B during the remodeling, reducing construction costs, the hanging portion 52 is hung on the hung portion 23, making it easy to align the attachment 5 and increasing the attachment strength to the gate posts 2A, 2B, and since only the frame projected piece 224 is used to attach the attachment 5 to the gate posts 2A, 2B, the remodeling can be performed without being affected by surrounding walls, and since the projected dimensions of the attachment 5 are small, the effect of narrowing the interior dimensions of the pillars can be reduced.

[0016] [Variations] In the above embodiment, the telescopic gate 1 is described as a double-leaf type, but it is not limited to this, and a single-leaf type telescopic gate 1B may be configured as shown in the first modified example in FIG. 6. In this case, a single-leaf type telescopic door body 10C is connected to one of the gate posts 2A and 2B via an attachment 5 as the hinged side, and the other of the gate posts 2A and 2B is connected to the door end side via an attachment 5. A lock device is configured on the door end side of the telescopic door body 10C, and it can be connected to the other of the gate posts 2A and 2B by locking and unlocking it, and can be disconnected. The hinged side of the single-leaf type telescopic gate 1B is attached to one of the gate posts 2A and 2B, which is the gate post 2A in this embodiment, as in the double-leaf type. The door end side of the telescopic gate 1B is attached to the other of the gate posts 2A and 2B, which is the gate post 2B in this embodiment. The procedure for connecting the door end side of the single-leaf retractable gate 1B to the gate post 2B is as follows: first, as shown in Fig. 4(A), the existing retractable door body 9B is removed, as shown in Fig. 4(B), the attachment 5 is attached to the gate post 2B as shown in Fig. 4(C), and finally, of the newly installed retractable door body 10C with a smaller expected dimension, the connecting member 16 that functions as a lock receiver on the door end side is attached to the attachment 5. As a result, the lock 133 provided on the vertical frame 13C on the door end side of the retractable gate 1B releasably engages with the connecting member 16, so that the retractable gate 1B is releasably engaged and connected to the gate post 2B.

[0017] In the above embodiment, the gatepost 2A has the hanging part 23 composed of an extension piece integrally continuing with the frame body 22 of the hollow frame part 21, but this is not limited thereto. For example, as in the second modified example shown in (A) and (B) of FIG. 7, when the hanging part 23 is not integrally formed with the hollow frame part 21, a separate extension piece 231 extending inward in the Z-axis direction may be attached to the back plate 54 arranged in the groove interior 24A of the fixed part 24 by screwing with a fixing screw 58, and the attached extension piece 231 may be configured as the hanging part 23. In this case, the hanging part 52 of the attachment 5 is hung on the extension piece 231, and the fixing part 53 is screwed to the extension piece 231 by a fixing screw 59. A spacer 60 may be interposed between the back plate 54 and the extension piece 231.

[0018] In the above embodiment, the attachment 5 has a hanging portion 52 that can be hung on the hanging portion 23, but if the attachment 5 can be smoothly attached to the gate posts 2A, 2B without the hanging portion 52, the configuration of the hanging portion 52 may be omitted. In the above embodiment, the gate posts 2A, 2B are configured with a fixed portion 24 extending in a groove-like shape in the Y-axis direction, but this is not limited to this, and as long as the fixing portion 53 of the attachment 5 can be fixed in other shapes, the fixed portion 24 does not have to have a groove-like shape extending in the Y-axis direction. In the above embodiment, the attachment 5 is indirectly connected to the vertical frame 14 via the hinge member 15 and the connecting member 16, but if the hinge member 15 or the like is not required, the vertical frame 14 may be directly connected to the attachment 5.

[0019] [Summary of the invention] (1) The telescopic gate of the present invention is a telescopic gate in which a telescopic door body is connected to an existing gate post via an attachment, and the telescopic door body has a different projected dimension relative to the gate post, and the attachment has a gate post mounting portion that is attached to the gate post, and a door body connecting portion that is positioned at a different position in the projected direction from the position of the gate post mounting portion and to which the telescopic door body is connected. According to the telescopic gate of the present invention, the position of the door body connection part of the attachment is arranged at a different position in the projection direction relative to the position of the gate post mounting part, so that a new telescopic door body with a different projection dimension relative to the gate post can be installed. (2) In the retractable gate of the present invention, the gate post may be configured with a hanging portion extending inward in the projection direction, and the gate post mounting portion may have a hanging portion that is hung on the hanging portion and a fixing portion that is positioned in a position outward in the projection direction from the position of the hanging portion and is fixed to the gate post. With this configuration, the hanging portion can be hooked onto the hanging portion of the gate post to provisionally position the attachment while the fixing portion is fixed to the gate post, thereby making it possible to easily attach the attachment to the gate post in a predetermined position. (3) In the retractable gate of the present invention, the hanging portion may be composed of an extending piece portion that extends inward in the projected direction and is integrally formed with the gate post, or a separate extending piece that extends inward in the projected direction and is attached to the gate post. According to this configuration, when the gatepost itself has the above-mentioned extending piece, the hook of the attachment can be hooked on the extending piece to fix the fixed part. Also, when the above-mentioned extending piece is attached to the gatepost, the hook of the attachment can be hooked on the extending piece to fix the fixed part. (4) In the retractable gate of the present invention, a fixed portion extending in a groove-like shape in the vertical direction is formed on the gate post, and a back plate that is screwed and connected to the fixed portion by a fixing device may be placed inside the groove of the fixed portion. With this configuration, the back plate is loosely screwed and connected to the fixed part of the attachment in advance using a fastener, and in this state the back plate is inserted into the groove from the vertical end of the fixed part of the gate post, and the fixed part of the attachment can be easily fixed to the fixed part of the gate post by tightening the fastener. (5) In the retractable gate of the present invention, the retractable gate body may have a frame at its end having a different projected dimension relative to the gate post, and the frame may be connected to the gate body connection portion. With this configuration, by connecting the frame of the telescopic door body, which has a different projected dimension relative to the gate post, to the door body connecting portion of the attachment, it is possible to easily install a telescopic door body with a different projected dimension relative to the existing telescopic door body, in place of the existing telescopic door body, which is usually installed with the same dimensions as the projected dimension of the gate post. The connection between the door body connecting portion and the frame includes direct or indirect connection and releasable engagement. (6) In the retractable gate of the present invention, the attachments are attached in pairs to the gate post in the forward direction, and the retractable door body has a pair of connectable parts that connect to the door body connecting parts of the pair of attachments, and the forward spacing of the door body connecting parts of the pair of attachments may be the same as the forward spacing of the pair of connectable parts. With this configuration, the spacing between the door body connecting parts of a pair of attachments attached to the gate post is the same as the spacing between the pair of connectable parts of the telescopic door body, so that the connectable parts of the telescopic door body can be easily attached to the door body connecting parts. (7) The remodeling method of the present invention is a remodeling method for connecting a telescopic door body to an existing gate post via an attachment to create a telescopic gate, characterized in that the telescopic door body has a different projected dimension relative to the gate post, and the attachment has a gate post mounting portion to be attached to the gate post and a door body connecting portion that is positioned in a different projected direction from the position of the gate post mounting portion and to which the telescopic door body is connected, and the gate post mounting portion is attached to the gate post, and the telescopic door body is attached to the door body connecting portion. [Explanation of symbols]

[0020] 1, 1B... telescopic gate, 10A, 10B, 10C, 9, 9B... telescopic door body, 11... pantograph mechanism, 111, 16... connecting member, 112... rotating shaft, 12... vertical bar, 13, 13C, 14... vertical frame (frame body), 133... lock, 141... frame sight piece, 142... frame sight piece, 143... groove portion, 144... groove forming portion, 15... hinge member, 151... shaft portion, 152, 153... plate portion, 16... connecting member, 161... connected portion, 21... hollow frame portion, 22... frame main body, 221, 222... frame sight piece, 223, 224... frame sight piece, 224A... Opening, 225...continuous piece, 225A...recess, 23...hanging portion, 231...extending piece, 24...fixed portion, 24A, 611A...inside of groove, 25...connecting body, 2A, 2B...gatepost, 5...attachment, 50...main body piece, 51...gatepost mounting portion, 52...hanging portion, 521...bottom, 522...return portion, 523...guide portion, 53...fixing portion, 54, 56...back plate, 55, 58, 59...fixing screw (fixing device), 57...connecting screw (connecting device), 60...spacer, 61...door body connecting portion, 611...groove forming portion, 612...extending portion, 8...cap, GL...installation surface.

Claims

1. A telescopic gate that connects a telescopic door body to an existing gate post via an attachment, The telescopic door body has a different projected dimension relative to the gatepost, The attachment has a gate post mounting portion that is attached to the gate post, and a door body connecting portion that is disposed at a position different from the position of the gate post mounting portion in the front direction and to which the telescopic door body is connected. A retractable gate that features

2. The telescopic gate door according to claim 1, The gatepost is configured with a hanging portion extending inward in the projection direction, The gatepost mounting portion has a hanging portion that is hung on the hanging portion, and a fixing portion that is disposed at a position outside the projection direction relative to the position of the hanging portion and is fixed to the gatepost. A retractable gate that features

3. The telescopic gate door according to claim 2, The hanging portion is composed of an extension piece portion that extends inward in the projection direction and is integrally formed with the gatepost, or a separate extension piece that extends inward in the projection direction and is attached to the gatepost. A retractable gate that features

4. The telescopic gate door according to claim 2, The gatepost is formed with a fixed portion extending in a groove shape in the vertical direction, A back plate is disposed inside the groove of the fixed portion and is screw-connected to the fixed portion by a fastener. A retractable gate that features

5. The telescopic gate door according to claim 1, The telescopic door body has a frame at its end that has a different projection dimension relative to the gatepost, The door body connecting portion is connected to the frame. A retractable gate that features

6. The telescopic gate door according to claim 1, The attachment is attached to the gatepost in a pair in a forward direction, The telescopic door body has a pair of connected parts that are connected to the door body connecting parts of the pair of attachments, The distance between the door body connecting parts of the pair of attachments in the prospective direction is the same as the distance between the pair of connected parts in the prospective direction. A retractable gate that features

7. A renovation method for constructing a telescopic gate by connecting a telescopic door body to an existing gate post via an attachment, Prepare the retractable door body having a different projected size relative to the gatepost, As the attachment, a gate post mounting part that is attached to the gate post and a door body connecting part that is disposed at a position different from the position of the gate post mounting part in the projection direction and to which the telescopic door body is connected are prepared, The gatepost mounting portion is attached to the gatepost, The telescopic door is attached to the door connection portion. A remodeling method characterized by:

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