JP6414849B2 - Panel joint structure - Google Patents

Description

  The present invention relates to a panel joining structure used for, for example, a prefabricated refrigerator or freezer, a clean room or a ceiling, wall or partition of a building.

  Generally, this type of panel is composed of a pair of surface plates, a frame member interposed between the side portions of the surface plates, and a foam insulation that is injected and filled into a space formed by the both surface plates and the frame member. From the viewpoint of bonding strength and airtightness, a fitting protrusion or fitting recess formed on the outer joint surface of the frame member is provided, and the fitting protrusion and fitting recess are provided. The strips are fitted together.

  As a structure for joining panels configured as described above, for example, a bolt fixing type in which a ceiling panel and a wall panel are brought into contact with each other in an orthogonal shape, and the ceiling panel and the wall panel are fastened and fixed with fixing bolts from above the ceiling panel. The structure of is known.

  In the bolt fixing structure, since the head of the fixing bolt protrudes to the outside, the appearance is impaired, and there is a concern that it cannot be applied to the joining of the wall panel and the floor panel.

  As a joining structure of panels that do not protrude fixing bolts to the outside, for example, an angle member is brought into contact with a corner portion on the inner surface side of a ceiling panel and a wall panel that are in contact with each other orthogonally, and both pieces of the angle member are fixed with screws. A structure is known that is screwed to a ceiling panel and a wall panel.

  In the structure using the angle member and the fixing screw as described above, since two pieces of the angle member are fixed with the fixing screw, there are many constituent members, and there is a concern that the fixing work is troublesome.

  In addition, as a structure for joining panels with a single fixing screw, an inclined passage is formed in one panel to be joined, and a fixing screw inserted into the inclined passage is inserted into the inclined passage. A structure in which the other panel is screw-coupled is known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-151453 (Claims, FIGS. 1 and 2)

  However, in the structure described in Patent Document 1, a large-scale process for forming an inclined passage in the panel is required, which may increase the cost.

  Further, there is a concern that the work is troublesome because the fixing screw inserted into the back side in the inclined passage is fixed by screwing it vertically using a dedicated tool.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a panel joining structure that can join panels with a simple operation at low cost.

In order to achieve the above object, the panel joining structure of the present invention is formed of a pair of surface plates, a frame member interposed between the side portions of these surface plates, the both surface plates, and the frame member. And a heat insulating material filled in the space, and a fitting protrusion or fitting groove that can be fitted to each other on a joint surface with the other panel in the frame member. the parts provided on one of the fixed member abutting on the surface plate of the bonded are one of the panels, Rutotomoni provided screw insertion hole inclined with respect to the contact surface of the fixing member, the abutment of the fixing member A protrusion is provided on the surface, the protrusion is fitted into a hole provided in the surface plate of the one panel, and a fixing screw inserted through the screw introduction hole is connected to the one panel and the fitting protrusion. Screw through the joint between the strip and the mating recess to the other panel Characterized in that (claim 1).

  With this configuration, the fixing screw can be easily inserted into the one panel and the fitting by inserting the fixing screw into the screw introduction hole provided in the fixing member that is in contact with the surface plate of the one panel to be joined. It can be threadedly connected to the other panel by penetrating through the joint between the joint ridge and the fitting recess.

Moreover, by comprising in this way, a fixing member is contact | abutted to the surface of a panel in the state which fitted the protrusion provided in the contact surface of a fixing member in the hole provided in the surface plate of the panel. be able to.

Further, in the present invention, the open side of the screw insertion hole of the fixing member, preferably formed in a flat shape orthogonal to the screw insertion hole (Claim 2).

  With this configuration, the opening side portion of the screw introduction hole is formed in a flat shape perpendicular to the screw introduction hole. The fixing screw can be easily inserted into the hole.

Further, in the present invention, it is preferable that the fixing screw is threadedly connected to the other panel by passing through the joint portions of the side wall pieces respectively provided in the fitting ridge portion and the fitting groove portion. Item 3 ).

  By comprising in this way, a fixing screw can be penetrated to the side wall piece of the convex ridge part for fitting in the fitting state, and the side wall piece of the concave ridge part for fitting, and panels can be joined.

In this case, it is preferable to form a bent portion that is bent in a substantially U shape from the front end surface of the fitting ridge portion toward the inner side of the panel, and to bring the bent portion into contact with the fixing screw. 4 ). Moreover, it is preferable to provide the notch part which the front-end | tip part of the said fixing screw bites into the inner surface of the side wall piece of the said protruding protrusion part for fitting (Claim 5 ).

By configuring in this way, the fixing screw penetrating the side wall piece of the mating ridge portion and the side wall piece of the mating ridge portion in the mating state is connected to the inside of the panel from the front end surface of the mating ridge portion. contacting a bent portion that is bent in a substantially U-shape toward the side can be prevented a deviation of the fixing screw (claim 4). In addition, by providing a notch portion in which the tip of the fixing screw bites into the inner side surface of the side wall piece of the fitting ridge portion, the side wall piece of the fitting ridge portion and the side wall piece of the fitting ridge portion of the fixing screw are provided. Can be facilitated (claim 5 ).

  According to this invention, since it is configured as described above, the following remarkable effects can be obtained.

  (1) According to the first aspect of the present invention, a single fixing screw is simply passed through one panel and the joint between the mating ridge and the mating ridge and screwed to the other panel. Therefore, the panels can be joined with a simple operation at low cost.

(2) According to the invention described in claim 1 , in a state where the protrusion provided on the contact surface of the fixing member is fitted in the hole provided in the surface plate of the panel, the fixing member is Since it can contact | abut on the surface of a panel, in addition to said (1), attachment of the fixing member to the panel surface can be made easy and reliable.

(3) According to the invention described in claim 2 , since the opening side portion of the inclined screw introduction hole can be easily seen and the fixing screw can be easily inserted into the screw introduction hole, the above ( In addition to 1) and (2), the panels can be joined with a simple operation.

(4) According to the invention described in claim 3 , the panels can be joined to each other by passing the fixing screw through the side wall piece of the fitting ridge portion and the side wall piece of the fitting ridge portion in the fitted state. Since it can do, in addition to said (1)-(3), joining of panels can be strengthened further.

(5) According to the invention described in claim 4 , the tip of the fitting ridge is fitted to the fixing screw that penetrates the side wall of the fitting ridge in the fitted state and the side wall of the fitting ridge. Since it is possible to prevent the fixing screw from slipping by contacting a bent portion that is bent in a substantially U shape from the surface toward the inner side of the panel, in addition to the above (4), the bonding between the panels is further strengthened. Can be.

(6) According to the invention described in claim 5 , since it is possible to facilitate the penetration of the fitting screw into the side wall piece of the fitting protrusion and the fitting groove, the above (4) In addition to (5), the panels can be joined with a simple operation.

It is sectional drawing which shows the joining structure of the panel which concerns on this invention. It is a disassembled sectional view which shows the panel in this invention, a fixing member, and a fixing screw. It is sectional drawing which shows the state before joining panels. It is sectional drawing (a) of the panel which comprises the frame material which has the protruding item | line part for fitting in this invention, and the I section expanded sectional view (b) of (a). It is sectional drawing of the panel which comprises the frame material which has the groove part for a fitting in this invention. It is sectional drawing (e) which follows the II-II line of the front view (a), top view (b), bottom view (c), side view (d), and (a) of the fixing member in this invention. They are an upper perspective view (a) and a lower perspective view (b) of the fixing member. It is sectional drawing of the panel which comprises the modification of the protruding item | line part for fitting in this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail based on an accompanying drawing. Here, the case where the panel which concerns on this invention is formed in a heat insulation panel, and it applies to a prefabricated refrigerator is demonstrated.

  As shown in FIG. 1, the refrigerator 10 includes a floor portion 13, a ceiling portion 12, and a wall portion 11 that connects the floor portion 13 and the ceiling portion 12. The door body (not shown) which consists of a heat insulation panel is mounted | worn so that opening and closing is possible. The wall portion 11, the ceiling portion 12, and the floor portion 13 are provided on the fixing member 50 that is in contact with the heat insulating panel 1 to which the heat insulating panels 1, 1A, 1B according to the present invention are joined. A fixing screw 60 inserted through the screw introduction hole 56 is joined to the other heat insulating panel 1A or 1B by screw connection. Here, the heat insulation panel 1 constitutes the wall part 11, the heat insulation panel 1 </ b> A constitutes the ceiling part 12, and the heat insulation panel 1 </ b> B constitutes the floor part 13.

  As shown in FIGS. 1 to 5, the heat insulating panels 1, 1 </ b> A and 1 </ b> B according to the present invention are a pair of surface plates 2 and first and second frame members interposed between the side portions of the surface plates 2. 3 and 3A, and the foamable heat insulating material 4 such as foamed polyurethane filled in the space 5 formed by the both surface plates 2 and the first and second frame members 3 and 3A. It is configured.

  The surface plate 2 is formed in a thin plate shape of a certain standard size by, for example, an aluminum alloy, and an end bent piece 21 that is bent vertically toward the opposite surface plate 2 is formed on each side. (See FIGS. 4 and 5).

  As shown in FIGS. 1 to 4, the first frame member 3 (hereinafter referred to as the frame member 3) fits the end bent pieces 21 of the pair of surface plates 2 of the one heat insulating panel 1 to be joined. A pair of fitting insertion groove portions 33 to be inserted are provided, and the cross section is formed in a substantially hat shape having a fitting protrusion 31 having a trapezoidal cross section along the longitudinal direction of the frame member 3 between the fitting insertion groove portions 33. Has been. In addition, a bent portion 32 that is bent in a substantially U shape toward the inner side of the heat insulating panel 1 is formed on the front end surface of the fitting protruding portion 31.

  Moreover, as shown in FIG. 4, the inner side vertical piece 33a which comprises the insertion insertion groove part 33 of the frame material 3 inclines the opening side of the insertion insertion groove part 33 toward the panel inner side, and the front-end | tip of the inner side vertical piece 33a The horizontal piece 33b is bent toward the inner side of the panel. With this configuration, the end bent piece 21 of the surface plate 2 can be easily inserted into the insertion groove portion 33, and the surface plate 2 and the frame member 3 can be easily and reliably assembled. Can be.

  In addition, a packing 40 (hereinafter referred to as an airtight packing 40) that can contact the other heat insulating panels 1A and 1B to be joined is protruded from both ends in the thickness direction of the heat insulating panel 1 of the frame member 3. In addition, a bent portion 41 directed inward of the heat insulating panel 1 is formed at the tip of the both airtight packings 40. In this case, the bent portion 41 is formed in an arc shape. A taper-like tongue piece 42 protruding toward the opening side of the fitting insertion groove 33 is provided on the proximal end side of the both airtight packings 40 (see FIG. 4B). In this way, by bending the taper-like tongue piece 42 protruding toward the opening side of the fitting groove portion 33 on the proximal end side of the airtight packing 40, the end bent portion inserted into the fitting groove portion 33 is provided. The gap between the piece 21 and the airtight packing 40 can be eliminated, the airtightness can be improved, and the appearance can be improved.

  In addition, a plurality of, for example, two (stripes) tongue-like fittings projecting in an inclined manner toward the inner side of the panel are provided at opposing portions on both side surfaces on the front end side of the fitting protrusion 31 of the frame member 3. A combined packing 43 is provided along the longitudinal direction of the frame member 3.

  The frame member 3 configured as described above is formed of a polyvinyl chloride member, and the bent portion 41 and the fitting packing 43 of the airtight packing 40 are formed of a soft polyvinyl chloride material. The main body of the frame member 3 is made of a hard polyvinyl chloride material.

  As shown in FIGS. 1 to 3 and 5, the second frame member 3 </ b> A (hereinafter referred to as the frame member 3 </ b> A) is formed with an insertion groove portion 33 at an opening portion of the U-shaped base 30. The side adjacent to one of the fitting insertion groove portions 33 is formed in a substantially hat-shaped cross section having a fitting concave strip portion 34 having a reverse trapezoidal cross section along the longitudinal direction. In addition, sawtooth-shaped fitting uneven strips 35 that are inclined toward the inner side of the panel are formed on the facing surface of the facing wall portion 11 of the fitting recess 34. In addition, a pair of protruding ribs 37 project from both sides of the bottom 36 of the fitting recess 34.

  Moreover, as shown in FIG. 5, the inner side vertical piece 33a which comprises the insertion groove part 33 of 3 A of frame materials is the same as the frame material 3, and the opening side of the insertion groove part 33 inclines toward the panel inner side. The horizontal piece 33b is slightly bent from the tip of the inner vertical piece 33a toward the inner side of the panel. With this configuration, the end bent piece 21 of the surface plate 2 can be easily inserted into the insertion groove portion 33, and the surface plate 2 and the frame member 3 can be easily and reliably assembled. Can be.

  The entire frame member 3A configured as described above is formed of a hard polyvinyl chloride member.

  In addition, since the heat insulation panel 1B which comprises the floor part 13 comprises the frame material 3A which has the recessed strip part 34 for fitting similarly to the heat insulation panel 1A which comprises the ceiling panel 12, it attaches | subjects the same code | symbol to the same part. A description thereof will be omitted.

  The end bent piece 21 of the surface plate 2 is fitted and inserted into the fitting groove portion 33 provided in the frame materials 3 and 3A configured as described above, and the pair of surface plates 2 and the frame materials 3 and 3A are connected. In the assembled state, the heat insulating panels 1, 1 </ b> A, 1 </ b> B are manufactured by injecting and filling the heat insulating material 4 into the space 5 formed by the pair of surface plates 2 and the frame members 3, 3 </ b> A.

  As shown in FIGS. 6 and 7, the fixing member 50 has a substantially circular contact surface that contacts the surface plate 2 on the inner side of the heat insulation panel 1 constituting the wall portion 11 that is one of the heat insulation panels to be joined. 51, a flat front part 52 standing upright from one end side of the contact surface 51, a back surface part 53 rising from the other end side of the contact surface 51, and from the front part 52 toward the back surface part 53. Further, the contact surface 51 is provided with a circular projecting portion 55. The projecting portion 55 is formed so as to be fitted in a circular hole portion 22 provided in the surface plate 2 of the heat insulating panel 1.

  In addition, a screw introduction hole 56 that is inclined with respect to the contact surface 51 is formed in the fixing member 50 so as to extend perpendicularly to the front surface 52 from the front surface 52 to the contact surface 51 on the back surface 53 side. ing. In this case, the opening side part 57 of the screw introduction hole 56 located in the flat front part 52 is formed in an outwardly tapered shape. Note that the opening side portion 57 of the screw introduction hole 56 does not necessarily have to be formed in an expanding taper shape.

  The fixing member 50 formed as described above is made of, for example, a synthetic resin such as PE, ABS, PP, POM, PS, or a metal material such as aluminum, iron, or stainless steel.

  The fixing screw 60 is formed of a tapping screw having a frustoconical head portion 61 similar to the shape of the opening side portion 57 of the screw introduction hole 56 of the fixing member 50.

  Next, the bonding structure of the heat insulating panel will be described as a representative of the bonding structure of the heat insulating panel 1 constituting the wall portion 11 and the heat insulating panel 1A constituting the ceiling portion 12.

  First, as shown in FIG. 2, the fitting protrusion 31 of the frame member 3 of one heat insulation panel 1 and the fitting recess 34 of the frame member 3A of the other heat insulation panel 1A are fitted.

  Further, in the state where the fitting ridges 31 and the fitting ridges 34 are fitted, the two fitting packings 43 provided on the fitting ridges 31 of the frame 3 are fitted to the frame 3A. It engages with a fitting concave / convex strip 35 provided in the joint concave portion 34. Thereby, airtightness can be given also to the fitting part of the fitting convex strip part 31 and the fitting concave strip part 34.

  Next, the protruding portion 55 of the fixing member 50 is fitted into the hole portion 22 provided in the surface plate 2 inside the heat insulating panel 1, and the protruding portion 55 is pushed into the elastic heat insulating material 4 to fix the fixing member. 50 contact surfaces 51 are brought into contact with the surface of the heat insulating panel 1. At this time, the hole portion 22 has a joint portion between the side wall piece 31 a of the fitting convex strip portion 31 and the side wall piece 34 a of the fitting concave strip portion 34 that are fitted to each other on the extension line of the screw introduction hole 56 of the fixing member 50. It is provided at a position. In addition, although the hole part 22 may be provided in a work site, you may provide in a factory etc. previously.

  When the fixing member 50 is in contact with the surface of the heat insulating panel 1, the front portion 52 of the fixing member 50 is positioned below and is inclined with respect to the surface (vertical surface) of the heat insulating panel 1. Accordingly, the operator can easily see the opening position of the screw introduction hole 56 and can easily insert the fixing screw 60 into the inclined screw introduction hole 56. In this state, the fixing screw 60 inserted through the screw introduction hole 56 is penetrated through the joint portion of the heat insulating panel 1 and the side wall piece 31a of the fitting convex strip portion 31 and the side wall piece 34a of the fitting concave strip portion 34 to insulate. The heat insulation panel 1 and the heat insulation panel 1A are joined by screw connection to the panel 1A. In this case, the fixing screw 60 penetrating the joint between the side wall piece 31 a of the fitting ridge 31 and the side wall piece 34 a of the fitting ridge 34 is a bent portion provided at the tip of the fitting ridge 31. 32 is contacted. Thereby, the position shift of the fixing screw 60 is prevented.

  Moreover, in the state which joined the heat insulation panel 1 and the heat insulation panel 1A, since the head 61 of the fixing screw 60 is accommodated in the opening side part 57 of the fixing member 50, the fixing screw 60 may protrude outside. Absent.

  In addition, as shown in FIG. 8, the notch part 38 which the front-end | tip part of the fixing screw 60 bites in is provided in the inner surface of the side wall piece 31a of the protruding protrusion 31 for fitting, and the protruding protrusion 31 for fitting of the fixing screw 60 is provided. The side wall piece 31a and the fitting recess 34 can be accurately and easily penetrated into the joint portion of the side wall piece 34a.

  By joining the heat insulation panel 1 and the heat insulation panel 1A as described above, the bent portion 41 of the airtight packing 40 is elastically deformed inwardly of the panel, and the end portion of the surface plate 2 of the other heat insulation panel 1A is folded. Close contact with the joint surface of the curved piece 21. Thereby, the clearance gap between the junction parts of both the heat insulation panels 1 can be narrowed, and the airtightness can be improved.

  In addition, about the joining of the heat insulation panel 1 which comprises the wall part 11 of the refrigerator 10, and the heat insulation panel 1B which comprises the floor part 13, it can be set as the joining structure similar to the above (refer FIG. 1).

  When joining the heat insulation panel 1 which comprises the wall part 11, and the heat insulation panel 1B which comprises the floor part 13, in the state which contacted the fixing member 50 on the surface of the heat insulation panel 1, the front part 52 of the fixing member 50 is upward. It is located and it will be in the state inclined with respect to the surface (vertical surface) of the heat insulation panel 1. Accordingly, the operator can easily see the opening position of the screw introduction hole 56 and can easily insert the fixing screw 60 into the inclined screw introduction hole 56. In this state, the fixing screw 60 inserted through the screw introduction hole 56 is penetrated through the joint portion of the heat insulating panel 1 and the side wall piece 31a of the fitting convex strip portion 31 and the side wall piece 34a of the fitting concave strip portion 34 to insulate. The heat insulation panel 1 and the heat insulation panel 1A are joined by screw connection to the panel 1A. In this case, the fixing screw 60 penetrating the joint between the side wall piece 31 a of the fitting ridge 31 and the side wall piece 34 a of the fitting ridge 34 is a bent portion provided at the tip of the fitting ridge 31. Since it contacts 32, the position shift of the fixing screw 60 is prevented.

    According to the joining structure of the embodiment configured as described above, one fixing screw 60 is easily passed through the joining portion of one heat insulating panel 1 and the fitting ridge 31 and the fitting ridge 34. Since it can be screwed to the other heat insulating panel 1A or 1B, the panels can be joined at a low cost with a simple operation.

  In addition, the fixing member 50 is thermally insulated in a state in which the protruding portion 55 provided on the contact surface 51 of the fixing member 50 is fitted in the hole 22 provided on the surface of the heat insulating panel 1 (for example, the surface plate 2). By abutting on the surface of the panel 1, it is possible to easily and reliably attach the fixing member 50 to the surface of the heat insulating panel 1.

  In addition, since the opening side portion 57 of the inclined screw introduction hole 56 can be easily seen, and the fixing screw 60 can be easily inserted into the screw introduction hole 56, the heat insulation panel 1 and the heat insulation panel 1A or 1B can be provided. Can be joined with simple work.

  Further, the heat insulating panel 1 and the heat insulating panel 1A or 1B may be joined by passing the fixing screw 60 through the side wall piece 31a of the fitting convex strip portion 31 and the side wall piece 34a of the fitting concave strip portion 34 in the fitted state. Since it can do, joining of heat insulation panel 1 and heat insulation panel 1A or 1B can be strengthened further.

  In addition, the fixing screw 60 penetrating the side wall piece 31a of the fitting ridge portion 31 in the fitted state and the side wall piece 34a of the fitting ridge portion 34 is connected to the heat insulating panel 1 from the front end surface of the fitting ridge portion 31. The bent portion 32 bent in a substantially U shape toward the inward side can be brought into contact with the fixing screw 60 to prevent the fixing screw 60 from being displaced, thereby further strengthening the bonding between the heat insulating panel 1 and the heat insulating panel 1A or 1B. Can do.

  Further, by providing a notch portion 38 into which the front end portion of the fixing screw 60 bites on the inner surface of the side wall piece 31a of the fitting convex portion 31, the side piece 31a of the fitting convex portion 31 of the fixing screw 60 and the fitting portion are fitted. Since the penetration of the concave portion 34 to the side wall piece 34a can be facilitated, the heat insulating panel 1 and the heat insulating panel 1A or 1B can be further joined by a simple operation.

  In addition, although the said embodiment demonstrated the case where the airtight packing 40 was provided in the frame material 3 which has the convex protrusion part 31 for fitting, even if it provides the airtight packing 40 in 3 A of frame materials which have the concave line part 34 for fitting, As in the above embodiment, the airtightness of the joint can be improved and the appearance of the joint can be improved.

  Moreover, in the said embodiment, the heat insulation panel which injects and fills the foam heat insulating material 4 in the space 5 formed by a pair of surface board 2 and the frame materials 3 and 3A interposed between the edge parts of both surface boards 2. Although 1 was demonstrated, this invention is not limited to this, It is applicable also to the panel which does not comprise the foam heat insulating material 4. FIG.

1, 1A, 1B Insulation panel 2 Surface plate 3, 3A, 3B Frame material 4 Foam insulation material 22 Hole 31 Fitting protrusion 31a Side wall piece 32 Bending part 34 Fitting recess 34a Side wall piece 38 Notch 50 Fixing Member 51 Contact surface 52 Front portion 55 Projection portion 56 Screw introduction hole 57 Opening side portion 60 Fixing screw 61 Head

Claims (5)

Joining of a panel comprising a pair of surface plates, a frame member interposed between the side portions of these surface plates, and a heat insulating material filled in a space formed by the both surface plates and the frame member Structure,
On the joint surface with the other panel in the frame material, a fitting ridge or a fitting ridge that can be fitted to each other is provided,
A fixing member abutting on one of the surface plate of the bonded are one of the panels, Rutotomoni provided screw insertion hole inclined with respect to the contact surface of the fixing member, protruding portion contact surface of the fixed member And fitting the protruding portion into the hole provided in the surface plate of the one panel,
The fixing screw inserted through the screw introduction hole is threadedly coupled to the other panel through the one panel and the joint between the fitting protrusion and the fitting recess.
A panel joining structure characterized by that. In the joining structure of the panel of Claim 1 ,
The panel joining structure, wherein an opening side portion of the screw introduction hole in the fixing member is formed in a flat shape perpendicular to the screw introduction hole. In the panel joining structure according to claim 1 or 2 ,
A panel joining structure, wherein the fixing screw is passed through the joint portions of the side wall pieces respectively provided on the fitting ridges and the fitting ridges and screwed to the other panel. In the joining structure of the panel of Claim 3 ,
Panel joining characterized by forming a bent portion that is bent in a substantially U shape from the front end surface of the fitting ridge portion toward the inner side of the panel, and bringing the bent portion into contact with the fixing screw. Construction. In the panel joining structure according to claim 3 or 4 ,
A panel joining structure, wherein a notch portion into which a tip end portion of the fixing screw bites is provided on an inner side surface of a side wall piece of the fitting protrusion.

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