JP4895746B2 - Insulation panel connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure of a heat-insulating panel which can maintain connection strength necessary for all sides of the heat-insulating panel and which also can favorably perform disassembly work at the time of disposal. <P>SOLUTION: The heat-insulating panel 12 is constituted by filling a heat insulator 18 into the space 16 surrounded by a pair of surface materials 14 and a convex frame material 20 and/or a concave frame material 30 provided along the entire width of the end part of the surface material 14. Then the heat-insulating panel 12 is provided with a part 26 to be engaged on the convex side, a part 36 to be engaged on the concave side, and a connection member 40. The part 26 to be engaged on the convex side is formed in a concave shape at the convexity 24 of the convex frame material 20, and the part 36 to be engaged on the concave side is formed on the inner surface of the concavity 34 of the concave frame material 30. Then the connection member 40 has a dimension in the longitudinal direction which is shorter than that of the convex frame material 20 and that of the concave frame material 30, and is placed between the convexity 24 and the concavity 34. The inner surface of the connection member 40 is provided with an inner engagement part 42 which is engaged with the part 26 to be engaged on the convex side of the convex frame material 20 with possible engagement and disengagement. Then the outer surface of the connection member 40 is provided with an outer engagement part 44 which is engaged with the part 36 to be engaged on the concave side of the concave frame material 30 with possible engagement and disengagement. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a connection structure of a heat insulating panel used for a prefabricated refrigerator / freezer, a refrigerator / freezer warehouse, a low-temperature storage, a cold storage, a storage, a warm storage, a freezer / refrigerated vehicle, a clean room, and the like.

  Conventionally, prefabricated refrigerators / freezers have been focused on heat insulation and airtightness in the refrigerator, so the seal between the heat insulation panel and the heat insulation panel constituting the wall generally has heat insulation and airtightness. An excellent wet caulking agent was used. That is, the heat insulation panel for refrigeration is provided with a predetermined interval, a convex frame material is provided on one side edge of a pair of surface materials, and a concave frame material is provided on the other side edge. It was manufactured by filling a space surrounded by a material, a convex frame material, and a concave frame material with a heat insulating material such as polyurethane foam.

  And when mutually connecting a heat insulation panel, the convex frame material provided in the one side edge part of the other heat insulation panel in the concave frame material provided in the other side edge part of one adjacent heat insulation panel Is engaged. In addition, a wet caulking agent is applied between the adjacent heat insulating panels and the concave frame material and the convex frame material of the heat insulating panels to seal between the two heat insulating panels.

  Further, a heat insulating panel has been proposed in which a heat insulating material is filled between two metal plates, and a concave portion and a convex portion that are fitted to each other are provided on both side edges of each heat insulating panel. And, on the inner surface of the concave portion formed on the edge of one heat insulating panel, the heat insulating packing is bonded with an adhesive, and on both side edges in the longitudinal direction of the convex portion formed on the edge of the other heat insulating panel, A packing having a plurality of fin-like sliding contact pieces formed on the outer side was mounted. This thermal insulation panel connects a plurality of thermal insulation panels quickly and reliably by engaging the concave part of one thermal insulation panel and the convex part of the other thermal insulation panel via packing, and The heat insulation and airtightness were connected well (for example, refer to Patent Document 1).

Another heat insulating panel is also proposed in which a space surrounded by a pair of surface materials whose edges are bent at right angles to each other and the male frame material and female frame material on both sides is filled with a heat insulating material. The male frame member of this heat insulating panel is provided with a pair of connecting legs having locking claws at the tip, and the female frame member is provided with a hook-shaped step portion in a fitting groove that engages with the locking claws . Then, the adjacent heat insulation panels are engaged with each other by the engaging claws of the male frame member and the hook-shaped step provided in the fitting groove of the female frame member, and the connection legs of the male frame member are connected. And the central part of the female frame member are adhered and connected with a connection seal (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 56-65019 Utility model registration No. 2511184

  However, this kind of heat insulation panel usually has a front rectangular shape having a long side and a short side, and when a convex portion and a concave portion provided on the end side of the heat insulation panel are engaged and connected. The connection strength differs due to the difference in the connection dimension between the long side and the short side. That is, if the engagement state of the convex part and the concave part (determined by the shape and dimensions of the convex part and the concave part) is a dimension / shape suitable for the short side, the longer side is connected with a longer dimension. Therefore, the connection strength becomes too strong, and the disassembling work at the time of disposal becomes extremely difficult. On the other hand, if the dimensions and shape are suitable for the long side, the connection dimension is short on the short side, so that there is a problem that the connection strength is insufficient.

  The present invention has been made to solve the problems of the related art, and can maintain a necessary connection strength at all sides of the heat insulation panel, and can also perform a disassembly operation at the time of disposal smoothly. It aims at providing the connection structure of a heat insulation panel.

  That is, the connection structure of the heat insulation panel of the invention of claim 1 is a heat insulation material in a space surrounded by a pair of surface materials and a convex frame material and / or a concave frame material provided over the entire width of the end of the surface material. In the heat insulating panel formed by filling the convex frame material, the convex side engaged portion formed in the convex portion of the convex frame material, the concave side engaged portion formed on the concave inner surface of the concave frame material, and the convex frame material And a connecting member having a shorter longitudinal dimension than the concave frame member and interposed between the convex portion and the concave portion, the connecting member being engaged with the convex portion side engaged portion of the convex frame member on the inner surface. In addition to having an inner engagement portion that removably engages, an outer engagement portion that removably engages with a recessed portion engaged portion of the concave frame member is provided on the outer surface.

  In addition to the above, the connection structure of the heat insulation panel according to the invention of claim 2 is formed with a plurality of recessed side engaged portions on the inner surface of the recessed portion of the recessed frame material, and the inner engaging portion of the connecting member has a bowl shape. A plurality of outer engaging portions are formed, and are engaged with the recessed portion side engaged portions of the recessed frame member in a releasable manner.

  Moreover, in addition to each said invention, the connection structure of the heat insulation panel of invention of Claim 3 is formed with multiple each of the convex part and the recessed part in the convex frame material and the concave frame material, and a connection member is each convex part and It is characterized by being interposed between the recesses.

  According to a fourth aspect of the present invention, there is provided the heat insulating panel connection structure according to any one of the above-mentioned inventions, wherein the convex frame member or the concave frame member is provided with packing on the inner side of the end portion. .

  According to the connection structure of the heat insulation panel of the present invention, the convex portion side engaged portion formed in the convex portion of the convex frame member of the heat insulation panel, and the concave portion formed on the concave portion inner surface of the concave frame member of the heat insulation panel An engagement portion, and a connecting member having a shorter longitudinal dimension than the convex frame member and the concave frame member and interposed between the convex portion and the concave portion, and the connecting member is formed on the inner surface of the convex frame member. In addition to having an inner engagement portion that detachably engages with the convex-side engaged portion, an outer engagement portion that removably engages with the concave-side engaged portion of the concave frame member is provided on the outer surface. Therefore, by setting the number and dimensions of the connecting members interposed between the convex part of the convex frame material and the concave part of the concave frame material, the connection strength is optimal on the long side and the short side of the heat insulation panel. It will be possible to adjust to the correct state. Thereby, it is possible to ensure the disassembly workability at the time of disposal while maintaining the necessary connection strength on all sides of the heat insulation panel.

  According to the invention of claim 2, in addition to the above, a plurality of recessed side engaged portions are formed on the inner surface of the recessed portion of the recessed frame material, and the inner engaging portion of the connecting member has a hook shape, and the outer engaging portion Are formed so that they can be engaged and disengaged with the recess-side engaged portion of the concave frame material, so that the convex frame material and the concave frame material of the adjacent heat insulating panel can be more securely connected by the connecting member. It will be able to do.

  According to the invention of claim 3, in addition to the above inventions, a plurality of convex portions and concave portions are formed on the convex frame material and the concave frame material, respectively, and the connecting member is interposed between each convex portion and the concave portion. Since it was made to do, it becomes possible to adjust the connection intensity | strength of each convex frame material and a concave frame material exactly. Thereby, it becomes very suitable for the prefabricated freezer and the freezer warehouse especially used in a freezing area.

  According to the invention of claim 4, in addition to the above inventions, the packing is formed on the inner side of the end of the convex frame member or the concave frame member, so that the gap between the heat insulating panel and the heat insulating panel as in the prior art. Even if sealing is not performed using a wet caulking agent, suitable heat insulation and airtightness can be ensured.

  In particular, since the packing is provided on the inner side of the end of the convex frame member or the concave frame member with the heat insulation panel connected, it is possible to seal the outer side of the packing with a wet caulking agent. . Thereby, when it is necessary to further improve the sealing performance between the heat insulating panels, such as when used in a clean room, wet coking can be performed between both frame members outside the packing.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a prefabricated refrigerator 1 (same as a prefabricated freezer 1A) of an embodiment to which the present invention is applied, and FIG. 2 is a connection structure of a heat insulating panel 12 for the prefabricated refrigerator 1 of the embodiment to which the present invention is applied. The expanded plane sectional view which shows is shown, respectively.

  That is, as shown in FIG. 1, the prefabricated refrigerator 1 has a plurality of heat insulation panels 12 (prefab panel) erected around the periphery, a ceiling panel (heat insulation panel) 3 provided on the ceiling, and a bottom portion. It comprises a floor panel (heat insulation panel) 4, a storage box frame 5 provided in the front opening, a door 6 (heat insulation panel made of heat insulation panel) pivotally supported by the storage box frame 5 and the like. Yes.

  The door 6 is composed of a heat insulating panel formed in a rectangular shape, and is used in common with various prefabricated refrigerators such as refrigerators and refrigerators, and is formed with a predetermined outer dimension. Yes. On one side (right side in the figure) of the door 6, a hinge member (not shown) for pivotally supporting the warehouse frame 5 is attached, and on the front side of the door 6 (left side). Is provided with a latch member 9 for opening and closing the door 6. Reference numeral 10 denotes a base frame, on which a floor panel 4 is placed, and a vertically long, substantially rectangular heat insulating panel 12 is erected around the base panel.

  The heat insulation panel 12 of the prefabricated refrigerator 1 is connected via a connection member 40 described later in a state where one side end face of each heat insulation panel 12 and the other side end face of the heat insulation panel 12 adjacent thereto are abutted with each other. A storage chamber (inside the chamber) (not shown) is formed inside. As shown in FIG. 2, the heat insulation panel 12 for refrigeration includes a pair of surface materials 14 and 14 arranged at a predetermined interval, and, for example, one side end portion of the surface materials 14 and 14 (the heat insulation on the right side in the drawing). A convex frame member 20 extending in the longitudinal direction of the left side edge of the panel 12 and a concave frame provided in the longitudinal direction of the other side end (the right side edge of the thermal insulation panel 12 on the left side in the figure). The material 30 is comprised. The surface material 14 is composed of an aluminum plate or a synthetic resin plate, and the convex frame material 20 and the concave frame material 30 are composed of a hard resin having a predetermined elasticity. The frame member 30 is provided over the entire end portion of the heat insulating panel 12 (surface member 14).

  The heat insulation panel 12 is provided with a convex frame member 20 at one end of a pair of surface members 14 and 14 provided at a predetermined interval, and a concave frame member 30 at the other end. The space 16 surrounded by the materials 14 and 14 and the convex frame material 20 and the concave frame material 30 is configured by foaming and filling a polyurethane heat insulating material 18. As shown in FIG. 1, the convex frame member 20 and the concave frame member 30 are provided at positions corresponding to each other depending on the position where the heat insulating panel 12 is attached (in FIG. 1, the convex frame member 20 and the concave frame member are provided). 30 is not shown). Moreover, depending on the heat insulation panel 12, the convex frame material 20 may be attached to both ends, or the concave frame materials 30 and 30 may be attached to both ends, respectively.

  When connecting the heat insulating panel 12 thus configured and the heat insulating panel 12 adjacent thereto, the convex frame member 20 of the other heat insulating panel 12 is inserted into the concave frame member 30 of the one heat insulating panel 12. Then, they are connected by engaging them. The connection between the heat insulation panel 12 and the heat insulation panel 12 will be described in detail later. Further, in FIG. 2, two heat insulating panels 12 and 12 are illustrated on the left and right, and the right heat insulating panel 12 illustrates only the convex frame material 20 portion (the opposite convex frame material 20 is not illustrated), The left heat insulating panel 12 shows only the concave frame member 30 (the opposite concave frame member 30 is not shown).

  A fitting portion 22 that engages with an inward flange formed on the edge portion of the surface material 14 is provided at the end portion of the convex frame material 20, and the edge portion of the surface material 14 is provided at the end portion of the concave frame material 30. The fitting part 32 engaged with the inward flange formed in the part is provided. The convex frame member 20 and the concave frame member 30 are fixed by fitting the fitting portions 22 and 32 to the edges of the pair of surface members 14 and 14. That is, the surface materials 14 and 14 of the heat insulation panel 12 are connected by the convex frame material 20 and the concave frame material 30, and the space 16 surrounded by them is filled with the heat insulation material 18 and integrated.

  As shown in FIG. 3, a convex portion 24 is formed on the convex frame member 20 over the entire width of the end portion of the heat insulating panel 12, and the convex portion 24 is a concave frame member at the other end portion of the heat insulating panel 12. It is formed in a shape that protrudes by a predetermined dimension in a direction away from 30 (left direction in the figure) and becomes narrower toward the tip. The convex portion 24 is formed over the entire longitudinal direction of the convex frame member 20 with a predetermined width and predetermined height, and is formed into a shape that can be inserted into the concave portion 34 of the concave frame member 30.

  A convex side engaged portion 26 is formed at the tip of the convex portion 24 of the convex frame member 20. The convex-side engaged portion 26 is opened at the tip and provided with engaged pieces 28 and 28 at both ends. The convex-side engaged portion 26 extends over the entire longitudinal direction of the convex frame member 20. Is provided. Both the engagement pieces 28, 28 of the convex-side engaged portion 26 extend by a predetermined dimension in a direction close to each other, the tip is folded by a predetermined dimension toward the heat insulating material 18 side, and the convex side The engaged portion 26 is configured such that an inner engagement portion 42 of a connecting member 40 described later can be engaged and disengaged.

  Further, the convex frame member 20 is provided with a reinforcing wall 25 for preventing the convex-side engaged portion 26 (both engaged pieces 28) from being deformed and opening each other. The reinforcing wall 25 connects both sides of the opened convex frame member 20 and is provided over the entire longitudinal direction of the convex frame member 20. The reinforcing wall 25 is not in contact with the inner engagement portion 42 at a position separated from the both engagement pieces 28 by a predetermined distance, that is, in a state where the connection member 40 is engaged with the convex-side engaged portion 26. In the position.

  Further, in the recessed frame member 30 provided in the heat insulating panel 12, a concave portion 34 is formed over the entire width of the end portion of the heat insulating panel 12 like the convex frame member 20, and the concave portion 34 is formed in the longitudinal direction of the concave frame member 30. It is formed from one end to the other end (shown in FIG. 1). A plurality of recessed side engaged portions 36 are formed on the inner surface of the recessed portion 34 so as to detachably engage an outer engaging portion 44 formed on the outer surface of the connecting member 40 described later. The recessed portion engaged portion 36 is formed on both side surfaces of the recessed portion 34, and is inclined obliquely from the bottom surface of the recessed portion 34 toward the opening, and the opening side surface is formed in parallel with the fitting portion 32. It has a saw blade shape (not shown).

  On the other hand, the connecting member 40 has a width dimension (dimension that covers the convex part 24 and can enter the concave part 34) smaller than the dimension in the width direction of the convex frame member 20 and the concave frame member 30; It has a thickness dimension that can be interposed between the convex portion 24 and the concave portion 34. The connecting member 40 is also made of an elastic hard resin, and is formed with a recess 46 having a size that can be opened on one side (right side in FIG. 3) and can accommodate the convex portion 24 of the convex frame member 20. . The recess 46 is formed to have a predetermined dimension in the other direction (left direction in FIG. 3) and to become narrower in the other direction (the back of the recess 46). The recess 46 is formed to have a predetermined width and a predetermined depth, and a bottom 48 is provided on the back side. An inner engagement portion 42 is erected integrally with the bottom portion 48 of the recess 46, and the inner engagement portion 42 is erected substantially at the center of the bottom portion 48 and extends in a predetermined dimension in the opening direction.

  Engagement pieces 38 that expand toward the bottom 48 of the recess 46 are provided on both sides of the distal end of the inner engagement part 42, and the inner engagement part 42 is provided with It has a shape. In other words, the inner engagement portion 42 has, for example, a hook shape having a slip-off preventing function like a burrow provided at the tip of a fishing hook, and the inner engagement portion 42 is a convex shape of the convex frame member 20. Even when the engagement pieces 38 on both ends of the front end are engaged with the convex-side engaged portion 26 and a predetermined stress is applied to the inner engaging portion 42 when engaged with the portion-side engaged portion 26, It is set as the structure by which the inner side engaging part 42 does not come off easily from the convex part side engaged part 26. FIG.

  A plurality (three in the embodiment) of outer engaging portions 44 are integrally formed on the outer surface of the recess 46 of the connecting member 40. Each outer engagement portion 44 is formed so as to protrude on both sides of the outer surface of the recess 46 and has a fin shape with a predetermined thickness. The outer engagement portions 44 are provided at predetermined intervals in the opening direction from the vicinity of the bottom 48 of the recess 46.

  In addition, the outer engaging portion 44 is configured such that the tip end side is inclined toward the opening side at a predetermined angle with respect to the bottom portion 48. Each outer engagement portion 44 and each recess-side engaged portion 36 are configured at the same pitch, and each outer engagement portion 44 is configured to mesh with each recess-side engaged portion 36. Yes. The connecting member 40 has a length dimension extending a predetermined dimension in the longitudinal direction of the convex frame member 20, and a plurality of connecting members 40 are attached at predetermined intervals in the longitudinal direction of the convex frame member 20 (FIGS. 6 and 7).

  In other words, the connecting member 40 (inner engagement portion 42) extends in the longitudinal direction of the convex frame member 20 provided from one end to the other end of a predetermined peripheral side (the vertical side 50 and the horizontal side 52) of the heat insulating panel 12. On the other hand, it can be engaged at any position. Further, the connecting member 40 (outer engagement portion 44) extends in the longitudinal direction of the recessed frame member 30 provided from one end to the other end of a predetermined peripheral side (the vertical side 50 and the horizontal side 52) of the heat insulating panel 12. On the other hand, it can be engaged at any position.

  As shown in FIG. 4, the connecting member 40 configured in this manner has the inner engagement portion 42 engaged with the convex-side engaged portion 26 provided on the convex portion 24 of the convex frame member 20. The convex frame member 20 is engaged and arranged at a predetermined position. The attachment of the connection member 40 will be described in detail later.

  On the other hand, soft packings 29 and 29 are provided on both sides of the outer surface of the convex frame member 20 (the surface on which the convex portion 24 protrudes). The packings 29, 29 are formed integrally with the convex frame member 20 by double extrusion molding or the like over the entire width in the longitudinal direction of the convex frame member 20, and on the inner side (both surface materials) from both ends of the convex frame member 20. 14 and 14 on the convex dimension 24 side). That is, the packing 29 is formed in a cylindrical shape and is provided on the outer surfaces of the fitting portions 22. The packing 29 may be provided on the concave frame member 30 side (opposite position of the packing 29 provided on the outer surface of the convex frame member 20). Also in this case, the same effect as the packing 29 provided on the convex frame member 20 can be obtained.

  And when connecting the heat insulation panel 12 and the heat insulation panel 12 adjacent to it, in the state which the connection member 40 was engaged with the convex frame material 20 of the other heat insulation panel 12, the concave of one heat insulation panel 12 was carried out. The connecting member 40 engaged with the other heat insulating panel 12 is inserted into the frame member 30 and engaged. Thereby, the adjacent heat insulation panel 12 and the heat insulation panel 12 are connected, and the apex of the packing 29 formed in a cylindrical shape comes into contact with the fitting portion 32 of the concave frame member 30.

  The diameter of the cylindrical portion of the packing 29 is configured to be slightly larger than the width of the gap (joint) between the adjacent heat insulating panels 12. Thereby, the apex of the packing 29 abuts on the fitting portion 32 of the adjacent heat insulating panel 12 and is elastically deformed by being pressed with a predetermined pressure, thereby sealing the joint between the convex frame member 20 and the concave frame member 30. Therefore, the heat insulation and airtightness between the adjacent heat insulation panels 12 are ensured in a suitable state.

  Since the packing 29 is provided on the inner side of the end of the convex frame member 20 or the concave frame member 30 with the heat insulating panel 12 connected, the outer side of the packing 29 is sealed with a wet caulking agent. It is also possible. Thereby, it is effective when the sealing performance of the joint between adjacent heat insulation panels 12 must be further improved.

  In addition, since the plurality of outer engaging portions 44 are provided on both sides of the outer surface of the recess 46 of the connecting member 40, when the connecting member 40 enters the recessed portion 34 of the concave frame member 30, each outer engaging portion 44. .. and the respective recessed side engaged portions 36... Can be engaged. Thereby, since there are a plurality of engagement locations and the contact area can be increased, the connection strength between the connection member 40 and the recess 34 can be increased.

  Further, the plurality of outer engaging portions 44 provided on both sides of the outer surface of the recess 46 of the connection member 40 are inclined toward the opening side of the recess 46 at a predetermined angle. Thus, when the connecting member 40 is inserted into the concave portion 34 of the concave frame member 30, the outer engagement portion 44 can be tilted relatively easily toward the convex portion 24. The connecting member 40 can be easily inserted into Further, in a state where the outer engaging portion 44 is engaged with the recessed portion side engaged portion 36, the warping strength of the outer engaging portion 44 is increased, so that the connecting member 40 is not easily detached from the recessed portion 34. . Thereby, the adjacent heat insulation panels 12 and 12 can be connected firmly and easily.

  Further, the removal strength when the inner engagement portion 42 is engaged with the convex-side engaged portion 26 is made stronger than the removal strength when the outer engagement portion 44 is engaged in the recess 34. ing. In this case, since the convex frame member 20, the concave frame member 30, and the connecting member 40 are made of a hard resin having elasticity, if the convex frame member 20 and the concave frame member 30 are forcibly separated, the concave frame member 20 The connecting member 40 can be separated from the material 30. Thereby, when discarding the heat insulation panel 12, if both the engagement pieces 38 on both sides of the inner engagement portion 42 are warped if the joint portion between the adjacent heat insulation panels 12 is strongly twisted in the direction of separating, the adhesive or caulking The connected heat insulation panel 12 can be easily disassembled as compared with the case of using.

  If the connecting member 40 is forcibly separated from the convex frame member 20, the connecting member 40 can be separated from the convex frame member 20 and disassembled. Further, the pull-out strength when the inner engagement portion 42 is engaged with the convex-side engaged portion 26 is weaker than the pull-out strength when the outer engagement portion 44 is engaged in the concave portion 34. There is no problem. In this case, if the convex frame member 20 and the concave frame member 30 are forcibly separated from each other, the connecting member 40 can be separated from the convex frame member 20, and the heat insulating panel 12 connected in the same manner can be disassembled.

  Next, FIG. 5 shows a heat insulating panel 12A of the prefabricated freezer 1A for freezing (shown in FIG. 1) thicker than the heat insulating panel 12 for refrigeration. The heat insulating panel 12A has substantially the same configuration as the above-described embodiment. Hereinafter, different parts will be described. The same parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The convex frame member 20 provided at one side edge of the heat insulating panel 12A is provided with two convex portions 24 provided with the connection member 40 in the same manner as the heat insulating panel 12 for refrigeration with a predetermined interval. Yes. Moreover, the recessed frame material 30 provided in the other side edge part of the heat insulation panel 12 is provided with two recessed parts 34 similar to the heat insulation panel 12 for refrigeration. The two convex portions 24 provided on the convex frame member 20 and the concave portions 34 provided on the concave frame member 30 are in a state in which the convex frame member 20 and the concave frame member 30 of each heat insulating panel 12A face each other. Are provided at positions facing each other.

  And when the convex part 24 of the convex frame material 20 is inserted in the recessed part 34 provided in the concave frame material 30 of 12 A of adjacent heat insulation panels, the outer engaging part of the connection member 40 provided in the convex frame material 20 44 is configured to be able to engage and disengage with the recessed side engaged portion 36 of the recessed frame member 30. In addition, the convex part 24 and the recessed part 34 provided in the convex frame material 20 and the concave frame material 30 may be provided not only in two places but in three places, four places, or more.

  As described above, the convex frame member 20 of the refrigeration heat insulation panel 12 </ b> A has a plurality of convex portions 24 and the concave frame member 30 also has a plurality of concave portions 34. And the comparatively thick dimension used for the prefabricated freezer 1A for freezing by engaging the connection member 40 provided in each convex frame material 20 with the recessed part side engaged part 36 in the recessed part 34 so that engagement / disengagement is possible. Even with a large thermal insulation panel 12A, the required connection strength and thermal insulation performance can be obtained.

  On the other hand, the heat insulation panel 12 (same for 12A; the same applies hereinafter) must also take into account the disassembly workability at the time of disposal, but the general heat insulation panel 12 has a long side as shown in FIG. The vertical side 50 and the horizontal side 52 on the short side shorter than the vertical side 50 are formed in a substantially rectangular shape. When the vertical side 50 and the horizontal side 52 of the heat insulation panel 12 having such a shape are engaged and connected in the same shape, the vertical side 50 is inevitably stronger in connection strength and difficult to disassemble at the time of disposal or the like. Will be difficult. If the vertical side 50 of the heat insulation panel 12 is set to have appropriate strength at the time of connection and strength at the time of disassembly, the strength at the time of connection of the horizontal side 52 becomes too weak. Moreover, when the horizontal side 52 of the heat insulation panel 12 is made into the intensity | strength at the time of a connection, the intensity | strength at the time of the vertical side 50 will be too strong.

  Therefore, in the present invention, the connection strength between the vertical side 50 and the horizontal side 52 of the heat insulation panel 12 can be adjusted. Here, in the heat insulation panel 12 of the embodiment, the length dimension of the vertical side 50 is about twice as long as the horizontal side 52, and the length dimension of the connecting member 40 is about 1/7 to 1/10 of the vertical side 50. It shall be composed of length.

  The connection member 40 is engaged with a plurality of locations on the vertical side 50 and is engaged with a plurality of locations on the horizontal side 52. Specifically, the inner engagement portion 42 of the connection member 40 is engaged with the upper and lower ends of the vertical side 50 of the heat insulation panel 12 and the middle thereof, and is engaged with both ends of the horizontal side 52. In this case, three connecting members 40 are provided on the vertical side 50 and two on the horizontal side 52. The connecting member 40 is attached to the convex frame member 20 as described above.

  That is, the connection strength between the vertical side 50 and the horizontal side 52 of the heat insulating panel 12 can be adjusted by the number of connection members 40 attached to the vertical side 50 and the horizontal side 52. Thereby, the strength at the time of connection of the vertical sides 50 provided in the heat insulating panel 12 can be maintained at an appropriate strength, and the strength at the time of connection of the horizontal sides 52 can be kept within an appropriate strength. Thereby, when the strength at the time of connection of the vertical side 50 is an appropriate strength, the strength at the time of connection of the horizontal side 52 becomes too weak, or when the strength at the time of connection of the horizontal side 52 is an appropriate strength. In addition, it is possible to prevent inconveniences such as difficulty in disassembling at the time of disposal or the like because the strength when the vertical side 50 is connected is too strong.

  As described above, the connection structure of the heat insulating panel 12 according to the present invention includes the convex-side engaged portion 26 that is formed in the convex portion 24 of the convex frame member 20 of the heat insulating panel 12 and the concave frame member of the heat insulating panel 12. The recess-side engaged portion 36 formed on the inner surface of the recess 34 of the 30 and the width of the convex frame member 20 and the longitudinal dimension shorter than the width of the concave frame member 30 are interposed between the protrusion 24 and the recess 34. And a connecting member 40 provided. The connecting member 40 has an inner engaging portion 42 that is detachably engaged with the convex-side engaged portion 26 of the convex frame member 20 on the inner surface, and the concave-side covering of the concave frame member 30 on the outer surface. The outer engaging portion 44 is detachably engaged with the engaging portion 36.

  Thereby, the connection strength of the vertical side 50 and the horizontal side 52 of the heat insulation panel 12 is set by setting the number of the connection members 40 interposed between the convex part 24 of the convex frame material 20 and the concave part 34 of the concave frame material 30. Can be adjusted to an optimum state. Moreover, it becomes possible to ensure the disassembly workability | operativity at the time of disposal, maintaining required connection strength in all the sides of the heat insulation panel 12. FIG.

  In addition, a plurality of recessed side engaged portions 36 are formed on the inner surface of the recessed portion 34 of the recessed frame member 30, and the inner engaging portion 42 of the connecting member 40 is formed in a bowl shape. Since the outer engaging portions 44 are detachably engaged with the recessed side engaged portions 36 of the plurality of formed recessed frame members 30, the protruding frame members 20 of the adjacent heat insulating panels 12 are engaged with each other. And the concave frame member 30 can be more reliably connected by the connecting member 40.

  Further, a plurality of convex portions 24 are formed on the convex frame member 20, a plurality of concave portions 34 are formed on the concave frame member 30, and the connection member 40 is interposed between each convex portion 24 and the concave portion 34. Therefore, it is possible to accurately adjust the connection strength (connection strength between each convex frame member 20 and the concave frame member 30) of the vertical side 50 and the horizontal side 52 of the heat insulating panel 12. Thereby, it becomes very suitable for the prefabricated freezer 1A and the freezer warehouse used in the freezing area.

  Further, since the packing 29 is formed on the inner side of the edge of the convex frame member 20 or the concave frame member 30, a wet caulking agent is applied to the joint between the heat insulating panel 12 and the heat insulating panel 12 as in the prior art. Even if it is not used and sealed, suitable heat insulation and airtightness can be secured.

  In particular, since the packing 29 is provided on the inner side of the edge of the convex frame member 20 or the concave frame member 30 with the vertical sides 50 and the horizontal sides 52 of the heat insulation panel 12 connected, the outer side of the packing 29 is provided. Can also be sealed with a wet caulking agent. Accordingly, when the heat insulation panel 12 is used in a clean room and the sealing performance of the joint between the heat insulation panels 12 must be further improved, wet coking is performed between the frame members 20 and 30 outside the packing 29. Can also be performed.

  In the embodiment, for adjusting the connection strength of the heat insulating panel 12, three connection members 40 are provided on the vertical side 50 and two connection members 40 are provided on the horizontal side 52, but when the vertical side 50 and the horizontal side 52 are connected. The number for making the strength of the proper range is not limited thereto.

  In addition to adjusting the connection strength by the number of connection members 40, the length of the connection member 40 provided on the vertical side 50 and the horizontal side 52 can be changed so that the strength at the time of connection on both sides can be within an appropriate range. good. Furthermore, the shape of the connection member 40 of the heat insulation panel 12 (12A) can be appropriately changed without departing from the gist of the present invention.

It is a disassembled perspective view of the prefabricated refrigerator (a prefabricated freezer is the same) of one example to which the present invention is applied. It is an expanded plane sectional view which shows the connection structure of the heat insulation panel for prefabricated refrigerators of one Example to which this invention is applied. It is a decomposition | disassembly plane sectional view of the convex frame material and connection member of the heat insulation panel for prefabricated refrigerators of one Example to which this invention is applied. It is a plane sectional view of the part which connected the convex frame material and connecting member of the heat insulation panel of FIG. It is an expanded plane sectional view which shows the connection structure of the heat insulation panel for prefabricated freezers of one Example to which this invention is applied. It is a front view of the heat insulation panel for prefabricated refrigerators of one example to which the present invention is applied. It is a bottom view of the heat insulation panel of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Prefabricated refrigerator 12 (12A) Thermal insulation panel 14 Surface material 18 Thermal insulation material 20 Convex frame material 24 Convex part 26 Convex part engaged part 28 Engagement piece 29 Packing 30 Concave frame material 34 Concave part 36 Concave part engaged part 38 engaging piece 40 connecting member 42 inner engaging portion 44 outer engaging portion 50 vertical side 52 horizontal side

Claims (4)

In a heat insulating panel formed by filling a space surrounded by a pair of surface materials and a convex frame material and / or a concave frame material provided over the entire width of the surface material end,
More than the convex side engaged portion formed in the convex portion of the convex frame material, the concave side engaged portion formed on the concave inner surface of the concave frame material, and the convex frame material and the concave frame material A connecting member having a short longitudinal dimension and interposed between the convex portion and the concave portion,
The connecting member has an inner engaging portion that is detachably engaged with the convex-side engaged portion of the convex frame member on the inner surface, and the concave-side engaged portion of the concave frame member on the outer surface. A heat insulating panel connection structure comprising an outer engaging portion that is detachably engaged.   A plurality of the recessed side engaged portions are formed on the inner surface of the recessed portion of the recessed frame member, the inner engaging portion of the connection member has a hook shape, and a plurality of the outer engaging portions are formed to form the recessed frame member. The connection structure of the heat insulation panel according to claim 1, wherein the engagement portion is detachably engaged with each of the recessed side engaged portions.   The said convex part and the recessed part are each formed in multiple numbers in the said convex frame material and the concave frame material, The said connection member is interposed between each convex part and a recessed part, respectively. The connection structure of the heat insulation panel of 2.   The heat insulating panel connection structure according to any one of claims 1 to 3, wherein a packing is formed on the convex frame member or the concave frame member so as to be located slightly inside the end portion.

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