JP2012143477A - Box-shaped frame for fireproofing of portion penetrated by long member, component member for the same, and method for forming the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box-shaped frame or the like for fireproofing of a portion penetrated by a long member, which can easily deal with changes in size, etc., is easy to assemble, etc., regardless of manufacturing costs, and can be firmly secured to a structure.SOLUTION: A side face plate 100a of a frame 1 includes an upper member 10a formed with a lower flange 19 and a lower member 20a formed with an upper flange 27, the upper and lower members being connected to each other. The lower flange 19 and the upper flange 27 are arranged to face outside of the frame 1. The lower flange 27 is formed with an engagement projection 273 in the form of an inverted L and a fitting projection 275. The upper flange 19 is formed with an engagement hole 191 composed of a first hole section 191a and a second hole section 191b continuing to each other, and a fitting hole 195. After an upper surface 273b of the engagement projection 273 is inserted into the first hole section 193a, a wall surface 273a of the engagement projection 273 is inserted into the second hole section 193b to engage the lower flange 27 with the upper flange 19. The flanges are positioned and fixed in place by fitting the fitting projection 275 into the fitting hole 195.

Description

  The present invention relates to a box-like frame used as a member for fire prevention treatment at a portion where a long object such as a cable penetrates a structure such as a concrete floor, and a member constituting the box-like frame, and further, formation of the frame It is about the method.

  In a place where a flammable long object such as a cable penetrates a structure such as a floor of a building, it is necessary to prevent a gap between the structure and the long object with a refractory material from the viewpoint of fire prevention performance.

  FIG. 17 shows an example of a cross-section of a penetration portion of a long object such as a cable in the structure. At the penetrating location, a box-shaped frame 3300 (a box-shaped frame for fire prevention treatment of a long object penetrating portion) configured by the side plate 3200 is installed in the opening 3100 of the structure 3000, and inside the frame 3300. The cable 3500 (long object) is passed through together with the cable rack 3400. A partition plate 3600 having an opening (not shown) through which the cable 3500 or the like passes is provided above the frame 3300, and a gap between the opening and the cable 3500 or the like is closed with a heat-resistant sealing material 3700. An example of a frame body 3300 used for such a penetration portion is shown in Patent Document 1.

JP 2001-353229 A

  However, with the architectural design change, the number of cables penetrating the structure may be changed, or the floor thickness may be changed. In such a case, a frame having a different size is required according to the change. For example, in the case of a conventional frame as shown in Patent Document 1, if a size such as a height or a side length is different from that of a normal product, the frame is remade separately, and each time a different side plate is manufactured. Since a mold was required, it was difficult to respond. In addition, the shape of the side plates in the long side direction and the short side direction are different, and different initial molds are required, so that the initial investment is large.

  Further, it is important that the frame body is firmly fixed to the structure. For this reason, anchors such as angles may be provided on the side plate as a means to enhance the integrity of the frame and concrete. However, such anchor members usually require several bolts and nuts for assembly. It took time and effort.

  The present invention has been made in view of the above-described problems, and can be easily accommodated to a change in size, etc., has a low manufacturing cost, can be easily assembled, and can be firmly fixed to a structure. An object of the present invention is to provide a box-like frame for fire prevention treatment of an object penetration part.

  A first invention for achieving the above-described object is a box-shaped frame body that is fixed as a member for fire prevention treatment at an opening of a structure through which a long object passes, and has a side surface formed by a side plate. By connecting a plurality of plate-like members having connecting flanges formed on at least one of the upper and lower end portions in the vertical direction between the flanges arranged so as to face the outside of the frame body, the side plate One of the connected flanges is formed with a connecting engagement protrusion having an inverted L shape, and the other flange has a first surface into which the upper surface of the engagement protrusion can be inserted. An engaging hole for connection is formed, in which a hole and a second hole into which the wall surface of the engaging protrusion can be inserted are continuous, and is further positioned and fixed to one flange to be connected. There are mating protrusions or mating holes for positioning and fixing. A fitting hole for positioning and fixing is formed on the other flange, or a fitting projection for positioning and fixing is formed on the other flange. After inserting the upper surface of the flange into the first hole of the other flange, the one flange is moved relative to the other flange so that the wall surface of the engagement protrusion is inserted into the second hole of the other flange. By engaging one flange with the other flange and fitting the fitting protrusion into the fitting hole, the fitting protrusion is fitted into the fitting hole and both are fixed. This is a box-shaped frame for fire prevention treatment of a long object penetrating portion characterized in that positioning in the width direction of the shaped member is performed and the fitting can be released by pressing the fitting protrusion.

With the above configuration, the upper and lower plate-like members are assembled to form the side plate of the frame, so that it is easy to change the height of the frame according to the design change, etc. There is no need to manufacture and prepare the body, and there are fewer dies. Also, if the side plate is used without distinguishing between the short side direction and the long side direction, and each plate-like member has a different width, even if the width of the frame changes depending on the design change, etc. It is easy, and it is not necessary to manufacture and prepare another frame. About each member, even if it is a case where width differs, it can manufacture using the same metal mold | die.
As described above, it is possible to form frames of various sizes according to the through portions of the structure while reducing the manufacturing cost and improving the productivity.
Further, the upper and lower members are connected to each other with the flanges arranged facing the outside of the frame. The flange functions not only for connection but also as an anchor for fixing to the structure, and there is no need to attach an angle or the like with a bolt or the like. Further, since the flanges are engaged and connected using the engagement protrusions and the engagement holes, bolts or the like are not required, and there is no time and labor for connection.
In addition, the flange of each member can improve rigidity and can prevent bending and deformation during handling and attachment to the structure.
Further, the flanges are firmly positioned and fixed in the width direction by the fitting protrusions and the fitting holes, and the respective members are reliably connected without being disengaged. In addition, there is no need for connection and disconnection.

  The one flange and the other flange are formed with different hole portions that are not fitting holes, and the different hole portions are separated from each other when the one flange and the other flange are fitted and positioned. It is desirable that the positions of the holes are overlapped with each other, and the other hole is filled with the concrete of the structure.

  With this configuration, the anchor effect is promoted by the concrete filled in the hole when the frame is attached to the structure. Therefore, the frame is securely fixed to the structure. Furthermore, weight reduction of a member is also achieved by each hole.

  A flange for corner connection is formed on either one of the both end portions of the plate-like member, and a flange for corner connection of one plate-like member to be connected is formed, and a flange for corner connection of the other plate-like member is formed. It is desirable that the plate-like members are connected to each other at the corners of the frame body by connecting to the side end portions that are not performed.

  With this configuration, the members are connected at the side ends at the corners of the frame. A flange can be provided in one side edge part of a plate-shaped member, and the shape can be shared as what the other side edge part is connected with a flange. Therefore, it is easy to change the size of the frame body by rearranging each member vertically and horizontally, and it is possible to form frame bodies of various sizes according to the through-holes of the structure body while reducing the manufacturing cost.

  A plate-shaped member having a connecting flange formed at least at the lower end, a plate-shaped member formed with a connecting flange at the upper and lower ends, and a plate-shaped member formed with a connecting flange at least at the upper end in the vertical direction It is desirable to connect and to constitute the side plate.

  With this configuration, the height of the frame can be changed in various ways, and it becomes easier to form a frame that matches the structure. Moreover, since the number of members connected in the vertical direction can be increased and the height of the frame can be changed, variations in the height of the members themselves can be reduced. Therefore, it is possible to form frames of various sizes according to the through-holes of the structure while reducing the manufacturing cost by reducing the number of molds.

  It is desirable that the side plate is configured by connecting a plurality of plate-like members having connecting flanges formed on at least one of both side end portions in the width direction between the flanges.

  With this configuration, the same effects as those obtained when the members are assembled in the width direction to form the side plate of the frame body and the plurality of members are assembled in the height direction can be obtained. It becomes easy to change the width of the frame according to the design change, etc., and it is possible to form frames of various sizes according to the through-holes of the structure while reducing the manufacturing cost. .

  The second invention for achieving the above-mentioned object is a plate constituting a side plate forming a side surface of a box-like frame body fixed as a member for fire prevention treatment at an opening of a structure through which a long object passes. A connecting flange for connecting to another plate-like member in the vertical direction is disposed on at least one of the upper and lower ends, and is disposed on the flange so as to face the outside of the frame. A first engaging portion into which an upper surface of a connecting engagement protrusion having an inverted L shape or a connection engaging protrusion having an inverted L shape can be inserted; and a wall surface of the engaging protrusion An engagement hole for connection in which a second hole portion into which can be inserted is formed is formed, and further, a position in the width direction is positioned and fixed to the flange when connected to another plate-like member, A fitting projection or a fitting hole into which the fitting projection fits is formed. A box-like frame forming member for elongate article penetrating portions fire treatment.

With the above configuration, the upper and lower plate-like members are assembled to form the side plate of the frame, so it becomes easy to change the height of the frame according to the design change, etc. There is no need to manufacture and prepare a frame, and the number of molds can be reduced. Also, if the side plate is used without distinguishing between the short side direction and the long side direction, and each plate-like member has a different width, even if the width of the frame changes depending on the design change, etc. It is easy, and it is not necessary to manufacture and prepare another frame. About each member, even if it is a case where width differs, it can manufacture using the same metal mold | die.
As described above, the plate-like member can form frames having various sizes in accordance with the through portions of the structure while reducing the manufacturing cost and improving the productivity.
Furthermore, the upper and lower members are connected by flanges arranged while facing the outside of the frame. The flange functions not only for connection but also as an anchor for fixing to the structure, and there is no need to attach an angle or the like with a bolt or the like. Further, since the flanges are engaged and connected using the engagement protrusions and the engagement holes, it does not take time and effort at the time of connection.
In addition, the flange of each member can improve rigidity and can prevent bending and deformation during handling and attachment to the structure.
Further, the flanges are firmly positioned and fixed in the width direction by the fitting holes and the fitting projections, and the plate-like members are reliably connected without being disengaged. In addition, there is no need for connection and disconnection.

  A hole other than the fitting hole for filling the flange with the concrete of the structure is formed, and when the flange is fitted, the other hole is formed so as to overlap each other. It is desirable that

  With this configuration, the anchor effect is promoted by the concrete filled in the hole when the frame configured by the plate-like member is attached to the structure. Therefore, the frame constituted by the plate-like member is securely fixed to the structure. Furthermore, weight reduction of a member is also achieved by each hole.

  It is desirable that a flange for corner connection for connecting to another plate-like member at the corner of the frame body is formed on either one of both end portions of the plate-like member.

  With this configuration, the plate-like member can be connected at the corner of the frame. It is possible to make the shape common by providing a flange at one side end of the plate-like member and connecting the other side end with a flange. Therefore, it is easy to change the size of the frame body by rearranging each member vertically and horizontally, and it is possible to form frame bodies of various sizes according to the through-holes of the structure body while reducing the manufacturing cost.

  It is desirable that connection flanges for connecting in the vertical direction with another plate-like member are formed on both the upper and lower ends.

  With such a configuration, the height of the frame can be changed in various ways using the plate-like member, and it becomes easier to form a frame that matches the structure. Moreover, since the number of members connected in the vertical direction can be increased and the height of the frame can be changed, variations in the height of the members themselves can be reduced. Therefore, it is possible to form frames of various sizes according to the through-holes of the structure by the plate-like member while reducing the cost in manufacturing by reducing the mold.

  It is desirable that a connecting flange for connecting to another plate-like member in the width direction is formed on at least one of both end portions of the plate-like member.

  With this configuration, the same effects as those obtained when the plate-like members are assembled in the width direction to form the side plate of the frame body and the plurality of members are assembled in the height direction can be obtained. It becomes easy to change the width of the frame according to the design change, etc., and it is possible to form frames of various sizes according to the through-holes of the structure while reducing the manufacturing cost. .

  According to a third aspect of the present invention for achieving the above-mentioned object, a long object penetration part fire prevention treatment box which is a box-like frame body fixed as a fire prevention member to an opening of a structure through which a long object penetrates. A plurality of plate-like members having connecting flanges formed on at least one of the upper and lower end portions, the upper and lower sides of the flanges arranged so as to face the outside of the frame body. The frame is formed by performing the connection in the direction and the connection in the lateral direction at the corner of the frame, and one of the flanges to be connected has an inverted L-shaped connection member. For the connection, a mating projection is formed, and the other flange has a first hole portion into which the upper surface of the engagement projection can be inserted and a second hole portion into which the wall surface of the engagement projection can be inserted. In addition, it is positioned and fixed to one flange to be connected. A fitting projection for positioning or a fitting hole for positioning and fixing is formed, and a fitting hole for positioning and fixing to the other flange or a fitting for positioning and fixing When the projections are formed and the plate-like members are connected in the vertical direction, the upper surface of the engagement projection of one flange is inserted into the first hole of the other flange, and the wall surface of the engagement projection is then connected to the other flange. By moving one flange with respect to the other flange so as to be inserted into the second hole portion, the one flange is engaged with the other flange, and the fitting protrusion fits into the fitting hole. The box-like frame for fire prevention treatment of a long object passing portion is characterized in that the fitting protrusion is fitted into the fitting hole so that the both are fixed and the plate-like member is positioned in the width direction. It is the formation method.

With the above configuration, the upper and lower plate-like members are assembled to form the side plate of the frame, so that it is easy to change the height of the frame according to the design change, etc. There is no need to manufacture and prepare the body, and there are fewer dies. Also, if the side plate is used without distinguishing between the short side direction and the long side direction, and each plate-like member has a different width, even if the width of the frame changes depending on the design change, etc. It is easy, and it is not necessary to manufacture and prepare another frame. About each member, even if it is a case where width differs, it can manufacture using the same metal mold | die.
As described above, it is possible to form frames of various sizes according to the through portions of the structure while reducing the manufacturing cost and improving the productivity.
Further, the upper and lower members are connected to each other with the flanges arranged facing the outside of the frame. The flange functions not only for connection but also as an anchor for fixing to the structure, and there is no need to attach an angle or the like with a bolt or the like. Further, since the flanges are engaged and connected using the engagement protrusions and the engagement holes, bolts or the like are not required, and there is no time and labor for connection.
In addition, the flange of each member can improve rigidity and can prevent bending and deformation during handling and attachment to the structure.
Further, the flanges are firmly positioned and fixed in the width direction by the fitting protrusions and the fitting holes, and the respective members are reliably connected without being disengaged. In addition, there is no need for connection and disconnection.

  According to the present invention, a box-shaped frame for fire prevention treatment of a long object penetrating portion that can easily cope with a change in size, etc., does not require manufacturing cost, is easy to assemble, and can be firmly fixed to a structure. Can be provided.

The figure which shows the outline of the assembly of the frame 1 The figure which shows the example of the installation to the structure of the frame 1 The figure which shows the fire prevention treatment of the opening part 2300 The figure which shows the upper member 10a The figure which shows the lower member 20a The figure which shows the connection of the upper member 10a and the lower member 20a The figure which shows the connection of the upper member 10a and the lower member 20a The figure which shows the connection of the upper member 10a and the lower member 20a The figure which shows the connection of the side plate 100a and the side plate 100b The figure which shows the frame 1a The figure which shows the intermediate member 30a The figure shown about the connection of the upper member 10a, the lower member 20a, and the intermediate member 30a The figure which shows the example which comprises the upper member 120 of a side plate, connecting the upper side members 70 and 90 and the upper intermediate member 80 in the width direction. The figure which shows the example which comprises the lower member 130 of a side plate, connecting the upper side member 140,160 and the upper intermediate member 150 in the width direction. The figure which shows the connection of the upper member 120 and the lower member 130 The figure explaining the safety cover 1800 The figure which shows the fire prevention treatment of the opening part 3100 by the conventional frame 3300

Hereinafter, embodiments of the box-shaped frame for fire prevention treatment of a long object penetration portion of the present invention will be described with reference to the drawings.
First, with reference to FIG. 1 to FIG. 3, an outline of the assembly of a box-shaped frame for a long object penetration portion fire prevention treatment according to a first embodiment of the present invention and a fire prevention treatment using the same will be described.

  FIG. 1 is a diagram showing an outline of assembly of a frame 1 that is a box-shaped frame for fire prevention treatment of a long object penetration portion of the present embodiment. As shown in FIG. 1, in the frame 1, on the short side, the upper member 10a and the lower member 20a (long-body-penetrating portion box-shaped frame structural member for fire prevention treatment) that are plate-like members are assembled in the vertical direction. A side plate 100a is formed, and on the long side, an upper member 10b and a lower member 20b (long-body-penetrating portion fire-proof box-shaped frame constituent members) that are plate-like members are assembled in the vertical direction to form the side plate 100b. It is formed. The frame 1 is formed by connecting the side edges of the side plates 100a and 100b. Each of the above members and the connection method thereof will be described in detail later.

  FIG. 2 is a diagram illustrating an example of installation of the frame 1 on the structure. In the figure, a cross section of the frame 1 is shown. As shown in FIG. 2 (a), the frame 1 is placed on the mold 2100a, and a rebar (not shown) or the like is placed between the mold 2100a and the mold 2100b provided above the concrete 2200. To do. After the concrete 2200 is cured, when the molds 2100a and 2100b are removed as shown in FIG. 2B, the frame 1 is fixed to the opening 2300 of the structure made of the concrete 2200 or the like. Inside the frame 1, as shown in FIG. 2C, a cable 2400 (long object) is disposed so as to penetrate the opening 2300 together with the cable rack 2500, for example.

  FIG. 3 is a diagram showing a fire prevention treatment for the opening 2300. For example, as shown in FIG. 3 (a), a fire-resistant partition plate 2610 having an opening (not shown) such as a cable 2400 as an opening (not shown) is attached to the upper portion of the frame body 1 as a fire prevention treatment for the opening 2300. A gap between the opening and the cable 2400 is closed with a fireproof sealant 2700. Alternatively, as shown in FIG. 3B, a partition plate 2620 similar to the partition plate 2610 is attached to the lower part of the frame body 1, and a fireproof block material 2810 such as rock wool is placed on the inner side of the frame body 1 on the partition plate 2620. Install in. In addition, as shown in FIG. 3 (c), a support fitting 2900 is attached to the frame 1, thereby supporting a partition plate 2630 similar to the partition plates 2610 and 2620 inside the frame 1, and a fireproof block on the partition plate 2630. A refractory block material 2820 similar to the material 2810 may be disposed.

  As described above, fire prevention is performed on the opening of the structure through which a long object such as a cable penetrates. Next, the frame 1 used for the fire prevention treatment will be described with reference to FIG.

  FIG. 4 is a view showing the upper member 10 a constituting the side plate 100 a of the frame 1. 4A is a perspective view of the upper member 10a, FIG. 4B is a view of the upper member 10a viewed from the side, FIG. 4C is a view of the upper member 10a viewed from above, and FIG. These are sectional drawings in line AA of Drawing 4 (b).

  As shown in the figure, a side flange 13 is provided at one side end in the width direction of the side plate 11 in the upper member 10a. The side flange 13 is provided with a hole 131. A hole 111 and a side flange 15 are provided at the other side end of the side plate 11. The hole 111 and the hole 131 are used for connection at the corner of the frame 1.

  An upper flange 17 is provided on the upper side of the side plate 11. The upper flange 17 is provided with a hole 171 and a hole 173. Two holes 171 are for attaching a safety cover to be described later, and two holes 171 are arranged at predetermined intervals in the width direction. The elongated hole 173 is disposed at the end of the upper flange 17 in the width direction.

  A lower flange 19 is provided at the lower portion of the side plate 11. The lower flange 19 projects perpendicularly to the side plate 11. The lower flange 19 is provided with a hole 191, an engagement hole 193, and a fitting hole 195. The engagement hole 193 includes a first hole 193a and a second hole 193b that is longer than the first hole. In the lower flange 19, one hole portion 191 and one engagement hole 193 are provided adjacent to each other, and two sets of this set are provided at intervals in a predetermined width direction. Further, the lower flange 19 is longer than the side plate 11, and a fitting hole 195 is provided at an end portion protruding from the side plate 11 in the width direction.

  FIG. 5 is a view showing the lower member 20 a constituting the side plate 100 a of the frame 1. 5A is a perspective view of the lower member 20a, FIG. 5B is a view of the lower member 20a as viewed from the side, FIG. 5C is a view of the lower member 20a as viewed from above, and FIG. Is a sectional view taken along line BB in FIG. 5B, and FIG. 5E is a sectional view taken along line CC in FIG. 5C.

  As shown in the figure, a side flange 23 is provided at one side end in the width direction of the side plate 21 in the lower member 20a. The side flange 23 is provided with a hole 231. A hole 211 and a side flange 25 are provided at the other side end of the side plate 11. The hole 211 and the hole 231 are used for connection at the corner of the frame 1.

An upper flange 27 is provided on the upper side of the side plate 21. The upper flange 27 projects vertically from the side plate 21. The upper flange 27 is provided with holes 271 (271a, 271b), an engagement protrusion 273, and a fitting protrusion 275. As shown in FIG. 5 (e), the engagement protrusion 273 has an inverted L-shaped cross-section obtained by rotating the L-shape by 180 ° on the vertical plane, and has a hole 274 formed in the upper flange 27. The wall surface 273a rises vertically from the side surface, and the upper surface 273b extends in parallel with the upper flange 27 from the upper portion of the wall surface 273a. In the upper flange 27, one hole 271 (271a, 271b) is provided on both sides in the width direction of one engagement protrusion 273, and two sets of this set are provided at predetermined intervals in the width direction. Further, the upper flange 27 is longer than the side plate 21, and a fitting projection 275 is provided at an end portion protruding from the side plate 21 in the width direction.
A lower flange 29 is provided at the lower part of the side plate 21.

The above has described the upper member 10a and the lower member 20a constituting the side plate 100a of the frame 1. About the upper member 10b and the lower member 20b which comprise the side plate 100b of the frame 1, the component part is made common between the upper member 10a and the lower member 20a, and has the substantially the same structure.
However, the width of the member is longer than that of the upper member 10a and the lower member 20a. In accordance with this, the upper flange 17 of the upper member 10b has the hole portion 171 at the same interval as that of the upper member 10a. Many are arranged. Further, with respect to the lower flange 19, the one set of one hole portion 191 and one engagement hole 193 is arranged more than the upper member 10a at the same interval as the above interval.
Further, with respect to the upper flange 27 of the lower member 20b, the one set in which one hole 271 (271a, 271b) is provided on both sides in the width direction of one engagement protrusion 273 is the same interval as the above interval. More than the lower member 20a are arranged.

  Next, the connection between the upper member 10a and the lower member 20a when the side plate 100a is configured will be described with reference to FIGS.

  First, as shown in FIG. 6, the upper flange 273 of the lower member 20 a and the lower flange 19 of the upper member 10 a are slightly shifted in the width direction while the upper surface 273 b of the engaging protrusion 273 of the upper flange 27 is moved to the lower flange 19. The engagement protrusion 273 is inserted into the engagement hole 193 so as to pass through the first hole 193 a of the engagement hole 193.

  FIG. 7A is a perspective view showing a state in which the engagement protrusion 273 is inserted into the engagement hole 193. FIG. 7B is a view of the lower flange 19 of the upper member 10a and the upper flange 27 of the lower member 20a as viewed from above. FIG. 7C is a cross-sectional view taken along line DD in FIG. FIG. 7D is a cross-sectional view taken along line EE in FIG.

  As shown in the drawing, the upper surface 273b of the engaging protrusion 273 of the upper flange 27 is lowered by inserting the position of the upper flange 27 of the lower member 20a in the width direction while being slightly shifted from the position of the lower flange 19 of the upper member 10a. The flange 19 is passed through the first hole 193 a of the engagement hole 193.

  From this state, as shown by the arrows in the figure, the wall surface 273a of the engagement protrusion 273 is inserted into the second hole portion 193b of the engagement hole 193 in the direction of correcting the above-described positional deviation, The flange 27 is moved with respect to the lower flange 19. Thereby, the upper member 10 a and the lower member 20 a are connected by the lower flange 19 and the upper flange 27.

  FIG. 8A is a perspective view showing a state in which the upper member 10a and the lower member 20a are connected. FIG. 8B is a view of the lower flange 19 of the upper member 10a and the upper flange 27 of the lower member 20a as viewed from above. FIG. 8C is a cross-sectional view taken along line FF in FIG. FIG. 8D is a cross-sectional view taken along line GG in FIG.

  As shown in the drawing, by moving the upper flange 27 with respect to the lower flange 19, the wall surface 273 a of the engagement protrusion 273 is inserted into the second hole portion 193 b of the engagement hole 193, and the upper surface 273 b is inserted into the lower flange 19. And is engaged in the vertical direction. Further, since the fitting protrusion 275 fits into the fitting hole 195 and the lower flange 19 and the upper flange 27 are positioned in the width direction, the engagement protrusion 273 does not move and disengage. Thereby, the upper member 10a and the lower member 20a are firmly fixed and integrated to form the side plate 100a.

  At this time, the hole portion 271a is located at a position corresponding to the hole portion 191, and the hole portion 271b is located at a position corresponding to the first hole portion 193a, each forming a through hole. When the frame 1 described in FIGS. 1 to 3 is installed in the structure, the through-hole is filled with the concrete of the structure. The anchor effect described later is promoted by filling the concrete, and the frame 1 is firmly fixed to the structure. In the present embodiment, there are a total of four through holes (the above-mentioned hole portions correspond to four locations), but it is preferable that there are a plurality of through holes.

  In order to remove the upper member 10a and the lower member 20a, the fitting by the fitting protrusion 275 and the fitting hole 195 is released, and the direction in which the upper flange 27 is moved relative to the lower flange 19 at the time of connection is reversed. Move it. The fitting projection 275 and the fitting hole 195 can be released by pressing the fitting projection 275 downward, and the fitting projection 275 can be released by pressing the fitting projection 275. What is necessary is just to remove 275 from the fitting hole 195 up and down. Since the fitting protrusion 275 and the fitting hole 195 are formed at the end of the flange that protrudes in the width direction from the side plate 11 or the side plate 21 with high flexibility, the fitting can be easily released.

  Although the above shows the connection between the upper member 10a and the lower member 20a when configuring the side plate 100a, the connection between the upper member 10b and the lower member 20b when configuring the side plate 100b is similarly performed.

  The side plate 100a and the side plate 100b are arranged so that the lower flange 19 of the upper member 10a (10b) used for connection and the upper flange 27 of the lower member 20a (20b) face the outside of the frame 1 and the width directions are orthogonal to each other. Arranged and their sides are connected to each other. FIG. 9 is a diagram showing the connection between the side plate 100a and the side plate 100b.

  As shown in FIG. 9, the side plate 100 a and the side plate 100 b are adjusted in height, and the lower flange 19 and the upper flange 27 used for connection are directed to the outside of the frame body 1, so that the side plate 100 a side of the upper member 10 a Side flange 11 and side flange 23 of lower member 20a, side plate 11 in which holes 111 and 211 of upper member 10b and lower member 20b of side plate 100b are formed (side flanges 13 and 23 are not formed), It arrange | positions so that it may cover the side edge part of 21, and it makes a width direction orthogonal.

Then, the hole 131 of the side flange 13 of the upper member 10a, the hole 111 of the side plate 11 of the upper member 10b, the hole 231 of the side flange 23 of the lower member 20a, and the hole 211 of the side plate 21 of the lower member 20b are formed. Since it becomes a corresponding position, the side plate 100a and the side plate 100b are connected by tightening the bolt 40 and the nut 50 in these holes. In this way, the side plate 100a and the side plate 100b are connected by connecting in a lateral direction between corresponding members such as the upper member 10a and the upper member 10b at positions corresponding to the respective corners of the frame 1, As shown in FIG. 1, a frame 1 is formed. The lower flange 19 and the upper flange 27 arranged so as to face the outside of the frame body 1 function as anchors embedded in the concrete when the frame body 1 is attached to the structure in the procedure of FIGS.
The side flanges 15 of the upper members 10a and 10b and the side flanges 25 of the lower members 20a and 20b are formed so as to be vertically directed from the side plates 11 and 21 toward the inside of the frame body 1, and the other members By abutting the side plates 11 and 21 from the back side, the side plates 100a and 100b can be easily arranged orthogonally.

  The positions and shapes of the holes used for connection at the corners of the frame 1, for example, the holes 131 provided in the side flanges 13 and the holes 111 of the side plates 11, only correspond to the upper member 10 a and the upper member 10 b. Not only between the members of the same type (for example, between the upper members 10a). Accordingly, for example, the side plates 100a can be connected at right angles to form a small frame.

As described above, according to the present embodiment, since the upper member 10a and the lower member 20a are assembled to form the side plate 100a of the frame body 1, the height of the frame body 1 is changed according to a design change or the like. Therefore, it is not necessary to manufacture and prepare another frame according to the structure, and the number of molds can be reduced. Further, if the side plate 100a is used without distinguishing between the short side direction and the long side direction, and each member has a different width, it is possible to cope with the case where the width of the frame 1 is changed according to a design change or the like. It is easy, and it is not necessary to manufacture and prepare another frame. About each member, even if it is a case where width differs, it can manufacture using the same metal mold | die.
As described above, it is possible to form the frames 1 having various sizes according to the through-holes of the structure while reducing the manufacturing cost and improving the productivity.
Furthermore, the upper member 10a and the lower member 20a are connected to each other by flanges arranged facing the outside of the frame. The flange functions not only for connection but also as an anchor for fixing to the structure, and there is no need to attach an angle or the like with a bolt or the like. Further, since the flanges are engaged and connected using the engagement protrusions and the engagement holes, bolts or the like are not required, and there is no time and labor for connection.
In addition, the flange of each member can improve rigidity and can prevent bending and deformation during handling and attachment to the structure.

  In addition, the flanges are firmly positioned and fixed in the width direction by the fitting protrusions and the fitting holes provided on the flange, and the upper member 10a and the lower member 20a are securely connected without being disengaged. In addition, there is no need for connection and disconnection. In the above embodiment, the fitting hole 195 is provided in the lower flange 19 of the upper member 10a, and the fitting protrusion 275 is provided in the upper flange 27 of the lower member 20a. However, the fitting protrusion is provided in the lower flange 19, It is also possible to provide fitting holes in the upper flange 27 to fit them. In this case, the fitting protrusion may be provided on the lower surface of the lower flange 19.

  Further, when the upper member 10a and the lower member 20a are connected, for example, the hole portion 191 of the lower flange 19 of the upper member 10a and the hole portion 271a of the upper flange 27 of the lower member 20a are in corresponding positions. The through holes formed thereby are filled with concrete when the frame 1 is attached to the structure, and the anchor effect is promoted, so that the frame 1 is securely fixed to the structure. Furthermore, the upper member 10a and the lower member 20a are reduced in weight by each hole.

  Further, by connecting a side flange provided at one side end in the width direction of the upper member 10a and the lower member 20a to the other side end of the member to be connected (the side flange is not formed). Connection at the corners of the frame 1 can be performed. About each member, a flange is provided in one side edge part, and the shape and position of the hole part used for a connection can be made common, as the other side edge part is connected with a flange. Therefore, it is easy to change the size of the frame body 1 by rearranging the members vertically and horizontally, and it is possible to form frame bodies of various sizes according to the penetration locations of the structure body while reducing the manufacturing cost. .

Next, a second embodiment of the present invention will be described.
In the second embodiment, as shown in FIG. 10, in addition to the upper member 10a (10b) and the lower member 20a (20b) described above, an intermediate member 30a (30b) capable of connecting them in the vertical direction is used. The face plate 110a (110b) is configured to form the frame body 1a, and the height of the frame body is variable.

  FIG. 11 is a view showing the intermediate member 30a constituting the side plate 110a of the frame 1a. 11A is a perspective view of the intermediate member 30a, FIG. 11B is a view of the intermediate member 30a as viewed from the side, FIG. 11C is a view of the intermediate member 30a as viewed from above, and FIG. FIG. 11B is a cross-sectional view taken along line HH in FIG. 11B, and FIG. 11E is a cross-sectional view taken along line II in FIG.

As shown in the figure, a side flange 33 is provided at one side end in the width direction of the side plate 31 in the intermediate member 30a. The side flange 33 is provided with a hole 331. A hole 311 and a side flange 35 are provided at the other side end of the side plate 11.
The side flanges 33 and 35 are substantially the same as the side flanges 23 and 25 described above, and the hole 311 and the hole 331 are used for connection at the corners of the frame 1a as before.

An upper flange 37 is provided on the upper side of the side plate 31. The upper flange 37 projects vertically from the side plate 31. The upper flange 37 is provided with a hole 371 (371a, 371b), an engagement protrusion 373, and a fitting protrusion 375. As shown in FIG. 11E, the engagement protrusion 373 is formed by a wall surface 373a rising from the side surface of the hole 374 formed in the upper flange 37, and an upper surface 373b extending in parallel with the upper flange 37 from the upper portion of the wall surface 373a. Is done. In the upper flange 37, one hole 371 (371a, 371b) is provided on both sides in the width direction of one engagement protrusion 373, and two sets of this set are provided at a predetermined interval in the width direction. Further, the upper flange 37 is longer than the side plate 31, and a fitting projection 375 is provided at an end portion protruding from the side plate 31 in the width direction.
The positions and shapes of the upper flange 37, the hole 371, the engaging protrusion 373, and the fitting protrusion 375 are the same as those of the upper flange 27, the hole 271, the engaging protrusion 273, and the fitting protrusion 275 described above. is there.

A lower flange 39 is provided at the lower portion of the side plate 31. The lower flange 39 projects vertically from the side plate 31 in the same direction as the upper flange 37. The lower flange 39 is provided with a hole 391, an engagement hole 393, and a fitting hole 395. The engagement hole 393 includes a first hole 393a and a second hole 393b that is longer than the first hole. In the lower flange 39, one hole portion 391 and one engagement hole 393 are provided adjacent to each other, and two sets of the one set are provided at predetermined intervals in the width direction. Further, the lower flange 39 is longer than the side plate 31, and a fitting hole 395 is provided at an end portion protruding from the side plate 31 in the width direction.
The positions and shapes of the lower flange 39, the hole 391, the engagement hole 393, and the fitting hole 395 are the same as those of the lower flange 19, the hole 191, the engagement hole 193, and the fitting hole 195 described above. is there.

The above has described the intermediate member 30a constituting the side plate 110a of the frame 1a. The intermediate member 30b that constitutes the side plate 110b of the frame 1a is also configured in common with the intermediate member 30a and has substantially the same configuration.
However, the width of the member is longer than that of the intermediate member 30a, and accordingly, the upper flange 37 of the intermediate member 30b has one hole 371 (371a, 371b) on both sides in the width direction of one engagement protrusion 373. The one set provided one by one is arranged more than the intermediate member 30a at the same interval as the interval.
Further, with respect to the lower flange 39, the one set of one hole portion 391 and one engagement hole 393 is arranged more than the intermediate member 30a at the same interval as the interval.

  FIG. 12 is a diagram illustrating connection between the upper member 10a, the lower member 20a, and the intermediate member 30a. As shown in the figure, the upper member 10a and the intermediate member 30a are connected by the lower flange 19 of the upper member 10a and the upper flange 37 of the intermediate member 30a, and the intermediate member 30a and the lower member 20a are connected to the lower flange of the intermediate member 30a. 39 and the upper flange 27 of the lower member 20a are connected to form a side plate 110a. Since these connection methods are the same as those described above, description thereof will be omitted. Further, the connection of the upper member 10b, the intermediate member 30b, and the lower member 20b when the side plate 110b is configured is similarly performed.

  The connection between the side plate 110a and the side plate 110b is performed in the same manner as described with reference to FIG. The side plate 110a and the side plate 110b are connected at positions corresponding to the corners of the frame 1a to form the frame 1a shown in FIG.

  Also in the second embodiment, the same effect as in the first embodiment can be obtained. Furthermore, in addition to the upper member 10a and the lower member 20a, the intermediate plate 30a is used to form the side plate 110a, so that the height of the frame 1a can be changed in a wide variety of ways. It becomes easier to form. Further, since the number of members connected in the vertical direction can be increased and the height of the frame 1a can be changed, variations in the height of the members themselves can be reduced. Therefore, it is possible to form frames of various sizes according to the through-holes of the structure while reducing the cost of manufacturing by reducing the number of molds.

Next, a third embodiment of the present invention will be described.
In the third embodiment, the upper member and the lower member of the side plate are configured by connecting a plurality of members in the width direction in the same manner as in the first and second embodiments. FIG. 13 shows an example in which the upper member 120 of the side plate is configured by connecting the upper side members 70 and 90 and the upper intermediate member 90 in the width direction.

As shown in FIG. 13A, in this example, in the upper side member 70, a side flange 73 is provided at one side end in the width direction of the side plate 71. The side flange 73 projects vertically from the side plate 71 in the same direction as a lower flange 79 described later. The side flange 73 is provided with a hole 731 and an engagement hole 733 in the height direction of the flange. A fitting hole 735 is provided at the upper end. The engagement hole 733 has the same shape as the engagement hole 193 described above, and is composed of a first hole 733a and a second hole 733b that is longer than the first hole 733a. In the side flange 73, one hole 731 and one engagement hole 733 are provided adjacent to each other, and two sets of this set are provided at intervals in a predetermined height direction.
The other side end of the side plate 71 is provided with a hole 711 and a side flange 75 similar to the hole 111 and the side flange 15 of the upper member 10a.

An upper flange 77 is provided on the upper side of the side plate 71. The upper flange 77 is provided with a hole 771. The hole 771 is for attaching a safety cover to be described later. Two holes 771 are arranged at predetermined intervals in the width direction.
A lower flange 79 is provided below the side plate 71. The lower flange 79 is provided with a hole 791 and an engagement hole 793. The engagement hole 793 has the same shape as the engagement hole 193 described above, and includes a first hole 793a and a second hole 793b that is longer than the first hole 793a. In the lower flange 79, one hole 791 and one engagement hole 793 are provided adjacent to each other, and two sets of the one set are provided at predetermined intervals in the width direction.

In the upper intermediate member 80, a side flange 83 similar to the side flange 73 of the upper side member 70 is provided at one side end in the width direction of the side plate 81. The side flange 83 is provided with a hole portion 731 of the side flange 73, an engagement hole 733, a hole portion 831 similar to the fitting hole 735, an engagement hole 833, and a fitting hole 835. The engagement hole 833 includes a first hole 833a and a second hole 833b that is longer than the first hole 833a.
A side flange 85 is provided at the other side end of the side plate 81. The side flange 85 is provided with a hole 851 (851a, 851b) and an engaging protrusion 853 in the height direction of the flange. A fitting projection 855 is provided at the upper end. The engagement protrusion 853 has the same shape as the engagement protrusion 273, and as shown in FIG. 13C, a wall surface 853a that rises perpendicularly from the side surface of the hole 854 to the side flange 85, and a wall surface 853a. Are formed by side surfaces 853b extending in parallel with the side flanges 85 from the front end portions of the two. In the side flange 85, one hole 851 (851a, 851b) is provided on both sides in the height direction of one engagement protrusion 853, and two sets of this set are provided at predetermined height intervals. .
The side flanges 83 and 85 project perpendicularly to the side plate 81 in the same direction as a lower flange 89 described later.

An upper flange 87 similar to the upper flange 77 of the upper side member 70 is provided on the upper portion of the side plate 81. The upper flange 87 is provided with a hole 871 similar to the hole 771 of the upper flange 77.
A lower flange 89 similar to the lower flange 79 of the upper side member 70 is provided at the lower portion of the side plate 81. The lower flange 89 is provided with a hole 891 and an engagement hole 893 similar to the hole 791 and the engagement hole 793 of the lower flange 79. The engagement hole 893 is composed of a first hole 893a and a second hole 893b that is longer than the first hole 893a.

In the upper side member 90, a side flange 93 similar to the side flange 13 of the upper member 10 a described above is provided at one side end in the width direction of the side plate 91. The side flange 93 is provided with a hole (not shown) similar to the hole 131 of the side flange 13.
A side flange 95 similar to the side flange 85 of the upper intermediate member 80 is provided at the other side end in the width direction. The side flange 95 includes holes 851 (851a and 851b), engagement protrusions 853 and engagement protrusions 855, holes 951 (951a and 951b), engagement protrusions 953, and engagement protrusions of the side flange 85. 955 is provided. The side flange 95 projects perpendicularly to the side plate 91 in the same direction as a lower flange 99 described later.

An upper flange 97 similar to the upper flange 17 of the upper member 10a is provided on the upper portion of the side plate 91. The upper flange 97 is provided with holes 971 and 973 similar to the holes 171 and 173 of the upper flange 17.
A lower flange 99 similar to the lower flange 19 of the upper member 10a is provided at the lower portion of the side plate 91. The lower flange 99 is provided with a hole portion 191 of the lower flange 19, an engagement hole 193, a hole portion 991 similar to the fitting hole 195, an engagement hole 993, and a fitting hole 995. The engagement hole 993 includes a first hole 993a and a second hole 993b that is longer than the first hole 993a.

As shown in FIG. 13 (a), the upper side member 70 and the upper intermediate member 80 are connected by the side flange 73 and the side flange 85, and the upper intermediate member 80 and the upper side member 90 are connected to the side flange 83. When connected with the side flange 95, a side plate upper member 120 is formed as shown in FIG. The connection method is the same as described above. When the side flange 73 and the side flange 85 are connected, when the engagement protrusion 853 is engaged with the engagement hole 733, the engagement protrusion 855 is formed in the engagement hole 735. Fit. At this time, the position of the hole 731 of the side flange 73 and the position of the hole 851a of the side flange 85 correspond, the position of the first hole 733a of the engagement hole 733 and the position of the hole 851b correspond, It is formed. When the frame described in FIGS. 1 to 3 is installed in the structure, the through-hole is filled with the concrete of the structure.
When the connection between the side flange 83 and the side flange 95 is similarly performed, the upper side member 70, the upper intermediate member 80, and the upper side member 90 are firmly fixed in the width direction.

  FIG. 14 shows an example in which the lower member 130 of the side plate is configured by connecting the lower side members 140 and 160 and the lower intermediate member 150 in the width direction.

As shown in FIG. 14A, in the lower side member 140, a side flange 143 is provided at one side end in the width direction of the side plate 141. The side flange 143 projects vertically from the side plate 141 in the same direction as an upper flange 147 described later. An engagement hole 1433 is provided in the side flange 143. A fitting hole 1435 is provided at the upper end. The engagement hole 1433 has the same shape as the engagement hole 193 described above, and includes a first hole 1433a and a second hole 1433b that is longer than the first hole 1433a. The shape of the fitting hole 1435 is the same as that of the fitting hole 195.
At the other side end of the side plate 141, a hole 1411 and a side flange 145 similar to the hole 211 and the side flange 25 of the lower member 20a are provided.

An upper flange 147 is provided on the upper side of the side plate 141. The upper flange 147 is provided with holes 1471 (1471a, 1471b) and engagement protrusions 1473. The shapes and positional relationships of the hole 1471 and the engagement protrusion 1473 are the same as those of the hole 271 (271a, 271b) and the engagement protrusion 273 of the upper flange 27 of the lower member 20a.
A lower flange (not shown) similar to the lower flange 29 of the lower member 20a is provided at the lower portion of the side plate 141.

In the lower intermediate member 150, a side flange 153 similar to the side flange 143 of the lower side member 140 is provided at one side end in the width direction of the side plate 151. The side flange 153 is provided with an engagement hole 1433 and a fitting hole 1535 similar to the engagement hole 1433 and the fitting hole 1435 of the side flange 143. The engagement hole 1533 is composed of a first hole 1533a and a second hole 1533b that is longer than the first hole 1533a.
A side flange 155 is provided at the other side end of the side plate 151. The side flange 155 is provided with a hole 1551 and an engaging protrusion 1553 in the height direction of the flange. Further, a fitting projection 1555 is provided at the upper end. As shown in FIG. 14C, the engagement protrusion 1553 has the same shape as the engagement protrusion 273, and a wall surface 1553 a that rises perpendicularly from the side surface of the hole 1554 to the side flange 155, and the tip of the wall surface 1553 a The side surface 1553b extends parallel to the side flange 155 from the portion. The shapes of the hole 1551 and the fitting protrusion 1555 are the same as those of the hole 271 and the fitting protrusion 275.
The side flanges 153 and 155 project vertically from the side plate 151 in the same direction as an upper flange 157 to be described later.

An upper flange 157 similar to the upper flange 147 of the lower side member 140 is provided on the upper side of the side plate 151. The upper flange 157 is provided with holes 1571 (1571 a and 1571 b) and engagement protrusions 1573 similar to the holes 1471 (1471 a and 1471 b) and the engagement protrusions 1473.
A lower flange (not shown) similar to the lower flange 29 is provided at the lower portion of the side plate 151.

In the lower side member 160, a side flange 163 similar to the side flange 23 of the lower member 20a is provided at one side end in the width direction of the side plate 161. The side flange 163 is provided with a hole (not shown) similar to the hole 231 of the side flange 23.
A side flange 165 similar to the side flange 155 of the lower intermediate member 150 is provided at the other side end in the width direction. The side flange 165 is provided with holes 1551, engagement protrusions 1553, and engagement protrusions 1655 similar to the holes 1551, engagement protrusions 1553, and engagement protrusions 1555 of the side flange 155.

On the upper side of the side plate 161, an upper flange 167 similar to the upper flange 27 of the lower member 20a is provided. The upper flange 167 includes holes 271 (271a, 271b), engagement protrusions 273, and engagement protrusions 275 of the upper flange 27, engagement protrusions 1673, and engagement protrusions 1675. Provided.
A lower flange (not shown) similar to the lower flange 29 is also provided at the lower portion of the side plate 161.

As shown in FIG. 14A, the lower side member 140 and the lower intermediate member 150 are connected by the side flange 143 and the side flange 155, and the lower intermediate member 150 and the lower side member 160 are connected to the side flange 153. When connected with the side flange 165, a lower member 130 of a side plate is formed as shown in FIG. The connection method is the same as described above. When the side flange 143 and the side flange 155 are connected, when the engagement protrusion 1553 is engaged with the engagement hole 1433, the engagement protrusion 1555 is formed in the engagement hole 1435. Fit. At this time, the position of the hole 1551 of the side flange 155 corresponds to the first hole 1433a of the engagement hole 1433 of the side flange 143, and a through hole is formed. When the frame described in FIGS. 1 to 3 is installed in the structure, the through-hole is filled with the concrete of the structure.
When the side flange 153 and the side flange 165 are connected in the same manner, the lower side member 140, the lower intermediate member 150, and the lower side member 160 are firmly fixed in the width direction.

Next, when the upper member 120 and the lower member 130 are connected in the vertical direction as shown in FIG. 15A, a side plate 170 is formed as shown in FIG. The connection method is the same as that described with reference to FIG. At this time, the lower member is inserted into the engagement holes 793, 893, 993 provided in the lower flanges 79, 89, 99 of the upper side member 70, the upper intermediate member 80, and the upper side member 90 constituting the upper member 120, respectively. When the engaging protrusions 1473, 1573, and 1673 provided on the upper flanges 147, 157, and 167 of the lower side member 140, the lower intermediate member 150, and the lower side member 160 that constitute 130 are engaged, The fitting protrusion 1675 provided in the upper flange 167 of the lower side member 160 is fitted into the fitting hole 995 provided in the lower flange 99 of the member 90. Thereby, the upper member 120 and the lower member 130 are firmly fixed in the up-down direction.
At this time, the positions of the holes 791, 891, 991 of the lower flanges 79, 89, 99 correspond to the positions of the holes 1471a, 1571a, 1671a of the upper flanges 147, 157, 167, and the engagement holes 793, 893, 993 The positions of the holes 1471b, 1571b, and 1671b correspond to the first holes 793a, 893a, and 993a, and through holes are formed respectively. When the frame described in FIGS. 1 to 3 is installed in the structure, the through-hole is filled with the concrete of the structure.

  Side flanges 93 and 163 having holes similar to those of the side flanges 13 and 23 of the upper member 10a and the lower member 20a are formed on one side portion in the width direction of the upper member 120, and the other side. Since the hole 711 and the hole 1411 similar to the holes 111 and 211 of the upper member 10a and the lower member 20a are formed on the side portions of the upper member 10a and the lower member 20a, the frame is formed on both sides in the same manner as in FIG. Connections can be made at the corners of the body to form a frame.

  Also in the third embodiment, the same effect as in the first embodiment can be obtained. Furthermore, by assembling the side plate 170 in the width direction using a side member, an intermediate member, or the like, the same effects as those obtained when the side plate is configured by assembling the members in the height direction can be obtained. That is, it becomes easy to change the width of the frame body according to the design change, etc., and the frame body of various sizes is formed according to the penetration portion of the structure while reducing the manufacturing cost. Can do.

In addition, in the frame of each embodiment, when the frame is attached to the structure but the construction of the cable or the like is not performed, a safety cover is attached to the upper portion to prevent the fall. FIG. 16 shows an example of attaching the safety cover 1800 (1800a, 1800b) to the frame 1. Since the size of the frame 1 can be changed, the upper portion of the frame 1 is covered with a plurality of safety covers 1800 (1800a, 1800b) so that the upper opening can be covered according to various sizes. As shown in the figure, the safety cover 1800 can also be arranged so that the ends overlap. The size of the safety cover 1800 can be determined according to variations in the size of the frame 1.
A hole 1810 is arranged along the outer periphery of the safety cover 1800. The hole 1810 is used for fastening the safety cover 1800 to the frame 1 together with the hole 171 described above. The hole portion 1810 is provided so as to correspond to the position of the hole portion 171, and the interval is a multiple of the interval of the hole portion 171. Therefore, the safety cover 1800 can be adapted to frames of various sizes. . Each safety cover 1800 is smaller than a case where the upper portion of the frame body 1 is covered with a single safety cover as in the prior art, and costs for storage and removal are reduced.

  As mentioned above, although suitable embodiment, such as the box-shaped frame for elongate article penetration part fire prevention measures concerning this invention, was demonstrated, referring an accompanying drawing, this invention is not limited to this example. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

DESCRIPTION OF SYMBOLS 1, 1a ......... Frame body 10a, 10b ......... Upper member 20a, 20b ......... Lower member 30a, 30b ......... Intermediate member 100a, 100b, 110a, 110b ......... Side plate 13, 15, 23, 25, 33, 35 ... Side flanges 17, 27, 37 ... Upper flange 19, 29, 39 ... Lower flange 111, 131, 171, 173, 191, 211, 231, 271, 311, 331 , 371, 391 ......... holes 193, 393 ......... engagement holes 195, 395 ......... fitting holes 273, 373 ......... engagement protrusions 275, 375 ......... fitting protrusions

Claims (11)

It is a box-shaped frame that is fixed as a member for fire prevention treatment at the opening of a structure through which a long object penetrates, and has side surfaces formed by side plates,
By connecting a plurality of plate-like members having connecting flanges formed on at least one of the upper and lower end portions in the vertical direction between the flanges arranged to face the outside of the frame body, the side plate is Configure
One flange to be connected is formed with an engaging projection for connection having an inverted L-shape, and the other flange has a first hole portion into which the upper surface of the engaging projection can be inserted and the above-mentioned An engagement hole for connection is formed, in which the second hole part into which the wall surface of the engagement protrusion can be inserted is continuous,
Furthermore, a fitting protrusion for positioning and fixing is formed in one flange to be connected or a fitting hole for positioning and fixing, and a fitting for positioning and fixing to the other flange. A fitting protrusion for positioning and fixing is formed,
When connecting the plate-like members, after inserting the upper surface of the engaging protrusion of one flange into the first hole of the other flange, the wall surface of the engaging protrusion is inserted into the second hole of the other flange. By moving one flange with respect to the other flange, the one flange is engaged with the other flange, and the fitting protrusion is fitted into the fitting hole so that the fitting protrusion is The long object through-part fire prevention treatment characterized in that both are fixed by being fitted to the fitting hole, the plate-shaped member is positioned in the width direction, and the fitting can be released by pressing the fitting protrusion. Box-shaped frame.   The one flange and the other flange are formed with different hole portions that are not fitting holes, and the different hole portions are separated from each other when the one flange and the other flange are fitted and positioned. 2. The box-shaped frame for fire prevention treatment of a long object penetrating part according to claim 1, wherein the holes are formed so that positions of the holes overlap each other, and the concrete of the structure is filled in the other hole. body.   A flange for corner connection is formed on either one of the both end portions of the plate-like member, and a flange for corner connection of one plate-like member to be connected is formed, and a flange for corner connection of the other plate-like member is formed. The long object penetration part fire prevention according to any one of claims 1 to 2, wherein the plate-like members are connected to each other at a corner portion of the frame body by connecting to a side end portion that is not provided. Box frame for treatment.   A plate-shaped member having a connecting flange formed at least at the lower end, a plate-shaped member formed with a connecting flange at the upper and lower ends, and a plate-shaped member formed with a connecting flange at least at the upper end in the vertical direction The box-shaped frame for fire prevention treatment for a long object penetration part according to any one of claims 1 to 3, wherein the side plate is connected.   The said side plate was comprised by connecting the some of the plate-shaped member in which the flange for a connection was formed in at least one of the both-sides edge parts in the width direction between the said flanges, The said side plate was comprised. 4. A box-shaped frame for fire prevention treatment of a long object penetration part according to any one of 4 above. A plate-shaped member constituting a side plate forming a side surface of a box-shaped frame body fixed as a member for fire prevention treatment to an opening of a structure through which a long object passes,
A flange for connection for connecting to another plate-like member in the vertical direction by being arranged to face the outside of the frame body is formed on at least one of the upper and lower ends,
A first engagement portion into which the connection engagement protrusion having an inverted L-shape or an upper surface of the connection engagement protrusion having an inverted L-shape can be inserted into the flange and the engagement An engaging hole for connection is formed, in which a second hole part into which the wall surface of the protrusion can be inserted is continuous,
Further, the flange is formed with a fitting projection or a fitting hole into which the fitting projection is fitted for positioning and fixing the position in the width direction when connected to another plate-like member. A box-shaped frame structural member for fire prevention treatment of a long object penetrating part.   A hole other than the fitting hole for filling the flange with the concrete of the structure is formed, and when the flange is fitted, the other hole is formed so as to overlap each other. The box-like frame constituting member for fire prevention treatment for a long object penetration part according to claim 6.   The corner connection flange for connecting to another plate-like member at the corner of the frame is formed on either one of both end portions of the plate-like member. The box-shaped frame structural member for elongate object penetration part fire prevention treatment in any one of Claim 7.   The long object penetration according to any one of claims 6 to 8, wherein a flange for connection for connecting with another plate-like member in the vertical direction is formed on both upper and lower ends. A box-shaped frame component for fire protection.   The connection flange for connecting to another plate-shaped member in the width direction is formed on at least one of both side end portions of the plate-shaped member. The box-shaped frame structural member for a long article penetration part fire prevention treatment of description. A method for forming a box-shaped frame for a long object through portion fire prevention treatment, which is a box-shaped frame fixed as a member for a fire prevention treatment to an opening of a structure through which a long object passes,
With respect to a plurality of plate-like members having connection flanges formed on at least one of the upper and lower end portions, vertical connection between the flanges arranged so as to face the outside of the frame, and corners of the frame Forming the frame by performing lateral connection in the section,
One flange to be connected is formed with an engaging projection for connection having an inverted L-shape, and the other flange has a first hole portion into which the upper surface of the engaging projection can be inserted and the above-mentioned An engagement hole for connection is formed, in which the second hole part into which the wall surface of the engagement protrusion can be inserted is continuous,
Furthermore, a fitting protrusion for positioning and fixing is formed in one flange to be connected or a fitting hole for positioning and fixing, and a fitting for positioning and fixing to the other flange. A fitting protrusion for positioning and fixing is formed,
When the plate-like members are connected in the vertical direction, the upper surface of the engagement protrusion of one flange is inserted into the first hole of the other flange, and then the wall surface of the engagement protrusion is used as the second hole of the other flange. By moving one flange with respect to the other flange so as to be inserted into the part, one flange is engaged with the other flange, and the fitting projection is fitted into the fitting hole, thereby fitting the fitting. A method for forming a box-shaped frame for fire prevention treatment of a long object penetration part, wherein the mating protrusions are fitted into the fitting holes and both are fixed, and the plate-like member is positioned in the width direction.

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