JPH0647409U - Structure connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to independently perform the assembly work of the mold material bodies and the fixing work of the retrofit member that is connected and fixed to the mold material body. [Structure] A mold material connection structure for connecting and fixing a retrofit member 90 to a side surface of a long cylindrical mold material main body 10 via an intermediate material. The mold body 10 has two dovetail-shaped mounting grooves 12
And the intermediate member comprises two mounting groove insert pieces 30. The mounting groove insertion piece 30 includes a flat plate-shaped insertion piece body 31 and a crank-shaped groove insertion portion 35, and the insertion piece body 31 is provided with a fastening member hole 32. The retrofit member 90 has one fixing portion that contacts the insertion piece body 31 of the two mounting groove insertion pieces 30, and the fixing portion is provided with a connection fixing hole corresponding to the fastening member hole 32. The retrofitting member 90 by the fastening member 39 that penetrates the fastening member hole 32 and the connection fixing hole to fasten the mounting groove insertion piece 30 and the retrofitting member 90.
Is fixed to the main body 10 of the mold.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is used for connecting structural members, and more specifically, for use as a construction member for constructing various materials such as pillars such as entrance gates installed at entrances and exits of general houses, beams, roof supports and other various works. The present invention relates to a structure for connecting suitable mold members.

[0002]

[Prior art]

 Conventionally, when constructing various facilities, structures, and workpieces, it has been possible to assemble using mold materials having various cross-sectional shapes, and these mold materials are appropriately combined to complete a product with a predetermined shape and structure. . At this time, depending on the structure to be combined and configured, the mold members are pre-configured to have a cross-sectional shape suitable for them, and the mold members themselves are fitted with each other by the uneven portions or the like. , Assembled by screwing and completed.

[0003] On the other hand, recently, it is relatively common to install entrance gates at the entrances and exits of the premises as the houses become more sophisticated, and garages are installed on the premises of the houses as motorization develops. There is a need. For these entrance gates, garages, etc., the pillar material that stands on the ground, the beam material that is mounted on the upper part of the pillar material, the roof material, the blind material that is laterally mounted on the lower part of the pillar material, etc. Build by combining. Most of the materials for these pillars and beams are so-called sash materials, which are mainly aluminum, and are formed into a hollow shape by extrusion molding, etc., and their outer peripheral walls are reinforced. There is.

When various types of mold materials for construction materials as described above are used, for example, as column materials and beam materials, they are configured as dedicated structures having specific uses such as column materials and beam materials. Since it was rarely diverted among them, it has versatility that it can be used as a pillar material, beam material, roof support material, etc., and facilitates connection and support with various members. As a mold material that can easily close the upper opening at that time, a device disclosed in Japanese Patent Application No. 3-34593 has already been proposed.

The invention will be briefly described with reference to FIGS. 8 and 9. FIG. 8 is an exploded perspective view showing a mold member and a member and a cover member connected and fixed to the mold member shown in the present invention. FIG. 9 is a cross-sectional view of essential parts in a state where a retrofit member is fixed to the mold member shown in the present invention. Reference numeral 10 shown in FIG. 8 denotes a main body of the mold material having a hollow interior, and basically has a substantially square shape when seen from a plane, and the square-shaped four side walls 11 are provided. Has an appropriate thickness, and its peripheral side wall 11 is formed of aluminum in a long shape. The peripheral side wall 11 has a flat surface, which is preferable for properly abutting various later-installed members 90, which will be described later, which are abutted thereto, and can be firmly connected and fixed thereto.

Each peripheral side wall 11 of the mold material body 10 is provided with a dovetail-shaped mounting groove 12 which is parallel to the longitudinal direction of the mold material body 10. The mounting groove 12 is, as shown in the drawing, respectively. The peripheral side walls 11 are arranged in pairs in the vicinity of the corners on both side edges of the peripheral side walls 11, respectively, and are formed in such a manner that the peripheral side walls 11 themselves are recessed. Further, since the mounting groove 12 itself is formed in a dovetail shape, it has engaging edges 13 projecting inward from each other at its opening edge.

The fixed connecting member 20 will be described. The fixed connecting member 20 is slightly forcibly inserted into the mounting groove 12 and is slidable along the groove direction of the mounting groove 12. It has a groove-like shape with a divergent cross section that corresponds to the depth of the groove. That is, as shown in FIGS. 8 and 9, an upper plate 21 that is in contact with the inner surface of the engaging edge 13 and has an appropriate number of female screw holes 22 formed therein, and is integrally connected from both ends of the upper plate 21. , Both side plates 23 of which the tip edges are outwardly inclined to the bottom of the mounting groove 12 and the ends of both side plates 23 are bent in a continuous manner from the respective tips of the side plates 23 to the bottom surface of the mounting groove 12. And a pair of contact plates 24 in contact with each other. The distance between the upper plate 21 and the contact plate 24 is slightly larger than the depth of the mounting groove 12, and when the fixed connecting member 20 itself is inserted into the mounting groove 12, the upper plate 21 and the contact plate 24 are separated. A spring action is exhibited as the distance between the fixed connection member 20 and the fixed connection member 20 is temporarily stopped at an arbitrary position in the mounting groove 12 by this spring action. By pressing the member 20 itself to the inner side of the mounting groove 12 with the mounting screw 25, the spring action is released, and the member 20 can slide in the mounting groove 12.

Further, on the inner side surface of the peripheral side wall 11, there is formed a screwing portion 14 which is continuous in the longitudinal direction of the mold body 10 itself and which is exposed at the end faces of both ends. The screwing portion 14 is formed continuously on the outer side surface of the side wall portion of the mounting groove 12, and is located at the base of the outer side surface of the side wall portion of the mounting groove 12 located inside the mold body 10 itself. Is formed toward the center of the mold body 10 and is integrally molded by an extrusion molding method. The cover material 91 is attached to the end face in the longitudinal direction of the mold body 10 via the set screw 26 that is screwed into the screwing portion 14, and the opening in the longitudinal direction is closed.

[0009]

[Problems to be solved by the device]

 However, the mold material proposed in Japanese Patent Application No. 3-34593 can temporarily stop the fixed connecting member 20 itself at any position in the mounting groove 12 by the vaning action of the fixed connecting member 20, and the fixed connecting member. Although the spring action is released by pressing the 20 itself to the inner side of the mounting groove 12 with the mounting screw 25, the sliding movement within the mounting groove 12 is possible, but the following problems remain.

That is, in the case of assembling an entrance gate by combining the corners of the plurality of mold material bodies 10, unless the fixed connecting member 20 is inserted into the mounting groove 12 in advance, the retrofit member 90 cannot be connected and fixed. Of course, when the assembly procedure is firm, it is possible to prevent a situation in which the retrofitting member 90 cannot be connected and fixed due to forgetting to insert the fixed connecting member 20.

However, for the convenience of assembling a plurality of mold material bodies 10, it is often the case that the longitudinal direction of one mold material body 10 must be vertical. In that case, if the fixed connecting member 20 is inserted into the mold body 10 with the longitudinal direction being vertical, the fixed connecting member 20 slides down, which makes the assembly work difficult. Further, for example, when the main body 10 of the molding material is used as a pillar material of the entrance gate, there is an inconvenience that it is not possible to mount a mail box after a lapse of days from the completion of the entrance gate. In other words, it is necessary to determine whether or not even accessories such as post-installation parts, such as mail reception, are necessary before assembling the entrance gate, and the significance of the post-installation member 90 as an optional product will be halved. Was there.

The problem to be solved by the present invention is, in the mold material proposed in Japanese Patent Application No. 3-34593, an assembling work of the mold material bodies 10 and a fixing work of the retrofit member 90 to be fixedly coupled to the mold material body 10. The purpose is to provide a structure for connecting the shape members that allows independent work by cutting the edges of the and.

[0013]

[Means for Solving the Problems]

 The present invention is to solve the above problems. In the mold material connecting structure according to claim 1, an elongated tubular mold material main body (10) having a substantially square cross section is provided, and a retrofit member (90) is provided on a side surface of the mold material main body (10) via an intermediate material. A mold material connecting structure for connecting and fixing, wherein the mold material body (10) has two dovetail-shaped mounting grooves (12) along the longitudinal direction of the side surface thereof, and the intermediate material is the mold material body. (10) is provided with two mounting groove insertion pieces (30) provided corresponding to the two mounting grooves (12) provided on one side surface, and each mounting groove insertion piece (30) is a mold material. A flat plate-shaped insert piece body (31) that comes into contact with the surface of the body (10), and a groove insertion part that extends in a crank shape from one side of the insert piece body (31) and is inserted into the mounting groove (12). (35), and the insert piece body (31) is provided with a through hole for a fastening member (32), and the retrofit member (90) is used for inserting the insert piece body (30) of the two mounting groove insert pieces (30). 31) with one fixed part in contact with At the same time, the fixing portion is provided with a connection fixing hole which is a through hole corresponding to the fastening member hole (32) of each insertion piece body (31), and the fastening member hole (30) of the mounting groove insertion piece (30) is provided. 32) and the connecting and fixing holes of the retrofitting member (90) to fasten the mounting groove insertion piece (30) and the retrofitting member (90) to fasten the retrofitting member (90) to the retrofitting member (90). ) Can be fixed.

Further, the mold member connecting structure according to claim 2 limits the constituent requirements of the mold member connecting structure according to claim 1. That is, the retrofitting member, which is a constituent feature of the invention relating to the mold material connecting structure of claim 1, is the retrofitting mold material (10A) having the same shape as the mold body (10), and the intermediate material is two mounting groove insertion pieces (30). And a connection assisting member (40) interposed between the two mounting groove insertion pieces (30) and the retrofitting mold material (10A) and enclosed in the retrofitting mold material (10A). The connection assisting member (40) is a plate-shaped plate-like portion (41) in contact with the insertion piece body (31) of the two mounting groove insertion pieces (30) and a right angle from both sides of the plate-like portion (41). It has a flat plate-shaped groove corresponding portion (42) that is bent in the same manner, and the plate-shaped portion (41) corresponds to the fastening member holes (32) of each insert piece body (31). A connection fixing hole (43) that is a through hole is provided, and the groove corresponding portion (42) is fixed to the retrofitting die material (10A) by contacting the inner surface of the mounting groove (12) on the inner side surface of the retrofitting die material (10A). To do. Then, the fastening member (39) penetrates the fastening member hole (32) of the mounting groove insertion piece (30) and the coupling fixing hole (43) of the coupling auxiliary member (40), and the fastening groove insertion piece (30). And the connection auxiliary member (40) are fastened to fix to the retrofitting mold material (10A), and the groove corresponding part (42) of the connection assisting member (40) is fixed to the retrofitting mold material (10A). And

[0015]

[Work]

 The mold material connecting structure according to claim 1 is formed in the following assembly sequence. First, the groove insertion portion of the mounting groove insertion piece is inserted into the mounting groove of the mold body. At this time, the two mounting groove insertion pieces are inserted into the two mounting grooves, but the two mounting groove insertion pieces are inserted so that the surface of the insertion piece body on the side opposite to the main body is flat.

Next, the fixing portion of the retrofit member is brought into contact with the surface of the insertion piece body of the two flattened attachment groove insert pieces on the side opposite to the main body of the mold member, and the connection fixing hole of the retrofit member and the attachment groove insert piece are attached. Match the holes for the fastening members. Finally, the fastening member is passed through the matching fixing holes of the post-installed member and the fastening member holes of the mounting groove insertion piece to fix the die body and the post-installed member. Here, the mold material main body and the post-molded mold material are fixed via the mounting groove insertion piece that is an intermediate material.

The mold material connecting structure according to claim 2 is formed in the following assembly sequence. First, the groove insertion portions of the two mounting groove insertion pieces are inserted into the two mounting grooves so that the surface of the insertion piece body of the two mounting groove insertion pieces on the side opposite to the main body is flat. The plate-shaped part of the connection auxiliary member should be in contact with the surface of the insert piece body of the two flattened mounting groove insertion pieces on the side opposite to the main body of the insert member, and for the connection fixing hole of the connection auxiliary member and the fastening member of the installation groove insertion piece. Match the holes. Then, the fastening member is made to penetrate through the matching connection fixing hole of the post-installed die material and the fastening member hole of the attachment groove insertion piece, and the attachment groove insertion piece and the connection assistance member are fixed to the die material main body.

Finally, the groove-corresponding portion of the connection assisting member is inserted into the post-installed mold material so as to be in contact with the inner surface of the mounting groove on the inner surface of the post-installed mold material, and then fixed to the post-installed mold material. In this case, the mold body and the retrofit member are fixed to each other via the attachment groove insertion piece that is an intermediate material and the connection assisting member.

[0019]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to examples and drawings. Here, FIG. 1 is a perspective view showing a state in which an entrance gate and a carport installed in a house are assembled by using the mold material proposed in Japanese Utility Model Application No. 3-34593. FIG. 2 is a perspective view showing the mold member connecting structure of the present embodiment. FIG. 3 is a front view showing the mold member connecting structure of the present embodiment. FIG. 4 is a cross-sectional view of the portion shown in FIG. FIG. 5 is a front view of a mounting groove insertion piece which is one component of the mold member connecting structure of the present embodiment. FIG. 6 is a plan view of the mounting groove insertion piece. FIG. 7 is a side view of the mounting groove insertion piece.

First, the structure of the mold member connecting structure of the present embodiment will be described. The mold material connection structure of the present embodiment is a mold material connection for connecting and fixing a retrofitted mold material 10A to a side surface of the mold material body 10 with an intermediate material on a side surface of the mold material body 10 having a substantially square cross section. It is a structure. As shown in FIG. 1, such a mold material connecting structure is used in a position where one mold material 10 has a side surface abutted against another mold material, that is, an end surface of a post-molded material 10A.

The mold body 10 and the post-molded mold material 10A are the mold materials proposed in Japanese Patent Application No. 3-34593. A detailed description thereof is omitted because it has been described above, but each of the four side surfaces has two dovetail-shaped mounting grooves 12 along the longitudinal direction. For convenience of explanation, the mounting groove provided in the post-molded material 10A is designated as 12A, and the inner surface of the mounting groove 12A on the inner side surface of the post-molded material 10A is designated as groove inner surface 12B.

In this embodiment, two mounting groove insert pieces 30 provided corresponding to the two mounting grooves 12 provided on one side surface of the mold body 10 and the two mounting groove insert pieces 30 and the retrofit mold material. An intermediate member is constituted by a connecting auxiliary member 40 which is interposed between 10A and is subsequently included in the attached mold member 10A. Each of the mounting groove insertion pieces 30 is a flat plate-shaped insertion piece body 31 that comes into contact with the surface of the mold body 10 and a crank-shaped extension from one side of the insertion piece body 31 and is inserted into the mounting groove 12. And a groove insertion portion 35. As shown in FIG. 5, the insert piece main body 31 is provided with two fastening member holes 32, which are small through holes, and two intermediate material fastening holes 33, which are large through holes, symmetrically. Further, the groove insertion portion 35 is provided with two cutout portions at its intermediate portion.

As shown in FIG. 2, one of the connection assisting members 40 includes a flat plate-like plate portion 41 and flat plate-like groove corresponding portions 42 that are bent at right angles from both sides of the plate-like portion 41. A member whose cross-sectional shape is U-shaped. The plate-shaped portion 41 is a portion in contact with the insertion piece body 31 of the two attachment groove insertion pieces 30 inserted into the two attachment grooves 12 of the mold body 10. In addition, the plate-like portion 41 has connecting and fixing holes 43, which are through holes corresponding to the fastening member holes 32 of each insert piece body 31, and through holes corresponding to the intermediate material fastening holes 33 of the insert piece body 31. An intermediate material fastening hole 45 is provided.

The groove-corresponding portion 42 is partly in contact with the groove inner surface 12B of the mounting groove 12A on the inner surface of the post-molded material 10. That is, the connection assisting member 40 is formed in such a size that it can be inserted inside the retrofitting die member 10A. Two groove-corresponding holes 44, each of which is a female screw portion, are provided in a portion of each groove-corresponding portion 42 corresponding to the groove inner surface 12B of the mounting groove 12A. A tap screw 47 fixes the connecting auxiliary member 40 and the retrofitting mold member 10A by screwing them into the mounting groove 12A of the retrofitting mold member 10A so as to coincide with the groove corresponding holes 44.

The two mounting groove insertion pieces 30 and the coupling auxiliary member 40, which are intermediate materials, are intermediate materials that penetrate the intermediate material fastening hole 33 of the mounting groove insertion piece 30 and the intermediate material fastening hole 45 of the coupling auxiliary member 40. It is fastened by the fastening bolt 48 and an intermediate material fastening nut 49 that fits the intermediate material fastening bolt 48. When the intermediate member is fastened, the positions of the fastening member holes 32 of the mounting groove insertion piece 30 and the connection fixing holes 43 of the connection auxiliary member 40 are aligned. It is the tap screw 39 as a fastening member that penetrates the matching fastening member hole 32 and the connecting and fixing hole 43 and fixes the intermediate member to the mold body 10.

The mold member connecting structure of the above embodiment is formed in the following assembling order as shown in FIG. First, the groove insertion portions of the two mounting groove insertion pieces 30 are inserted into the two mounting grooves 12 so that the surfaces of the insertion piece main bodies 31 of the two mounting groove insertion pieces 30 on the side opposite to the main body 10 of the material are flat. Insert 35. That is, the two mounting groove insertion pieces 30 are located between the two mounting grooves 12. At this time, the intermediate material fastening bolt 48 is penetrated from the mounting groove 12 side into the intermediate material fastening hole 33.

The plate-shaped portion 41 of the connection assisting member 40 is brought into contact with the surface of the insert piece body 31 of the two flattened mounting groove insert pieces 30 on the side of the non-mold material body 10 side, so that the connection assisting member 40 is connected. The fixing hole 43 and the fastening member hole 32 of the mounting groove insertion piece 30 are aligned. Then, the intermediate material fastening nut 49 is fastened to the intermediate material fastening bolt 48, which has been previously penetrated through the intermediate material fastening hole 33, so that the mounting groove insertion piece 30 and the connection auxiliary member 40 are integrated.

Subsequently, a tap screw 39, which is a fastening member, is passed through the matching connection fixing hole 43 of the post-molding die material 10 A and the fastening member hole 32 of the mounting groove insertion piece 30 to assist the attachment groove insertion piece 30 and the connection. The member 40 is fixed to the mold body 10. Finally, the groove corresponding portion 42 of the connection assisting member 40 is inserted into the retrofitting mold material 10A so that it is in contact with the groove inner surface 12B of the mounting groove 12A on the inner surface of the retrofitting mold material 10A, and then the tap screw 47 is attached to the mounting groove 12A. The bottom surface is penetrated and screwed into the groove corresponding hole 44 to fix the groove corresponding portion 42 and the retrofitting die member 10A. Here, the mold body 10 and the retrofit member 10A are fixed via the mounting groove insertion piece 30 which is an intermediate material and the connection assisting member 40.

Next, the effect of the above embodiment will be described. According to the mold member connecting structure of the above-described embodiment, the work for assembling the mold member bodies 10 and the work for fixing the retrofit member 90 that is connected and fixed to the mold member body 10 are separated from each other to enable independent work. There is an effect that it is possible to provide a mold material connection structure. Further, for example, when connecting and fixing a post-installed mold material 10A having the same shape as that of the mold material body 10 in which an entrance gate or the like has already been assembled, the mold material connection that can be easily coupled and fixed afterwards. The effect is that the structure can be provided.

Next, variations of the above embodiment will be described. In the above embodiment, the post-molding material 10A having the same shape as the shape material main body 10 was given as an example of the retrofitting member. However, for example, in the case of installing a mail box in the middle of the vertically standing mold material main body 10, A device can be used. At this time, a part of the post is brought into contact with the surface of the insertion piece body 31 of the two insertion groove insertion pieces 30 which are flattened by being inserted into the attachment groove 12 of the molding material body 10 to the surface of the insertion piece body 10. If the connection fixing holes corresponding to the fastening member holes 32 of 31 are provided, and the post holder can be fixed to the mold body 10 using the connection fixing holes, the connection assisting member 40 is not necessary. is there. In such a case, the intermediate material is only the two mounting groove insertion pieces 30, and the invention according to claim 1 is provided.

Further, in the case of a mail box which cannot be fixed to the mold body 10 only by the mounting groove insertion piece 30, one fixing which contacts the above-mentioned connecting auxiliary member 40 or the insertion piece body 31 of the two mounting groove insertion pieces 30. The invention according to claim 1 is provided even when it is fixed to the mold body 10 by using an appropriate auxiliary member having a portion.

[0032]

[Effect of device]

 According to the mold material connecting structure according to claim 1, the mold material connecting structure is provided so as to separate the assembly work of the mold material main bodies from each other and the fixing work of the retrofit member connected and fixed to the mold material main body to enable independent work. It has the effect of being provided. Further, according to the mold material connecting structure of the second aspect, when connecting and fixing a retrofitted mold material having the same shape as that of the mold material main body already assembled, it is possible to facilitate the subsequent connection and fixation. There is an effect that it is possible to provide a structure for connecting the mold members.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an entrance gate and a carport installed in a house are assembled.

FIG. 2 is a perspective view showing a mold material connecting structure of the present embodiment.

FIG. 3 is a front view showing a mold member connecting structure of the present embodiment.

FIG. 4 is a sectional view of a portion shown in FIG.

FIG. 5 is a front view of a mounting groove insertion piece which is one component of the mold material connecting structure of the present embodiment.

FIG. 6 is a plan view of a mounting groove insertion piece.

FIG. 7 is a side view of a mounting groove insertion piece.

FIG. 8 is an exploded perspective view showing a mold material shown in the invention disclosed in Japanese Patent Application No. 3-34593, and a member and a cover material connected and fixed to the mold material.

FIG. 9 is a cross-sectional view of an essential part with a post-installed member fixed.

[Explanation of symbols]

10 Mold Material Main Body 10A Retrofit Mold Material 11 Peripheral Side Wall 12 Mounting Groove 12A Mounting Groove 12B Groove Inner Surface 13 Engagement Edge 14 Screw Fixing Part 20 Fixed Connecting Member 21 Upper Plate 22 Female Screw Hole 23 Both Sides Plate 24 Contact Plate 25 Mounting Screw 26 Set Screw 30 Mounting groove insert piece 31 Mold material surface contact portion 32 Fastening member hole 33 Intermediate material fastening hole 35 Groove insertion portion 39 Tap screw 40 Connection auxiliary member 41 Plate portion 42 Groove corresponding portion 43 Connection fixing hole 44 Groove corresponding hole 45 Intermediate material fastening hole 47 tap screw 48 intermediate material fastening bolt 49 intermediate material fastening nut 90 retrofit member 91 cover material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuhiro Okamoto, 2-7-23, Kiba, Koto-ku, Tokyo Shin-Nikal Co., Ltd. (72) Yukio Sawanaka, 2-3-2, Kiba, Koto-ku, Tokyo Shin-Nippu shares In the company

Claims (2)

[Scope of utility model registration request] 1. A mold material connecting structure for connecting and fixing a retrofit member to a side surface of the mold material main body having an approximately square cross-section through an intermediate material on the side surface of the mold material main body. Has two dovetail-shaped mounting grooves along the longitudinal direction of its side surface, and the intermediate member has two mounting grooves provided corresponding to the two mounting grooves provided on one side surface of the mold body. Each of the mounting groove insertion pieces comprises a flat plate-shaped insertion piece body that comes into contact with the surface of the mold body, and is inserted into the mounting groove by extending in a crank shape from one side of the insertion piece body. The insertion piece body is provided with a fastening member hole that is a through hole, and the retrofit member has one fixing portion that is in contact with the insertion piece body of the two mounting groove insertion pieces. Through holes corresponding to the fastening member holes of each insert piece body were provided in the fixing part. The fixing member can be fixed to the main body of the mold by a fastening member that penetrates the fastening member hole of the mounting groove insertion piece and the coupling fixing hole of the retrofit member to fasten the mounting groove insertion piece and the retrofit member. Formed material connecting structure characterized by being formed in. 2. The post-mounting member is a post-molding mold member having the same shape as the mold member main body, and the intermediate member is composed of two mounting groove insertion pieces, and
And a connecting auxiliary member interposed between the two mounting groove insertion pieces and the post-attached mold material and included in the post-attached mold material, the connection assisting member being a flat plate-like portion that is in contact with the insert piece main bodies of the two attaching groove insert pieces. And a plate-shaped groove-corresponding portion that is bent at a right angle from both side portions of the plate-shaped portion.
A connecting and fixing hole, which is a through hole corresponding to the fastening member hole of each insert piece body, is provided, and the groove corresponding portion is to be fixed to the retrofitting die member in contact with the inner surface of the mounting groove on the inner side surface of the retrofitting die member, The fastening member penetrates the fastening member hole of the mounting groove insertion piece and the coupling fixing hole of the coupling auxiliary member, fastens the mounting groove insertion piece and the coupling auxiliary member, and fixes them to the post-installed mold member. The mold member connecting structure according to claim 1, wherein the groove corresponding portion is fixed to a post-molded mold member.