JP4881713B2 - Mounting structure for crosspieces and support structure for floor insulation - Google Patents

Description

  The present invention relates to an attachment for holding an end of a crosspiece in a square-like structure of a building, and a support structure for a floor insulation supported by a crosspiece held by the attachment.

  In recent years, heat insulation has been performed from the viewpoint of energy saving and residential comfort, and it has become widespread to lay a heat insulating material on the floor, wall, ceiling, and roof base of a building. For example, in the heat insulation construction under the floor of a house or the like, a plate-like heat insulating material such as glass wool is disposed between floor structures such as large drawers.

  In general, as shown in FIG. 19, the floor of a house is arranged with a base 3a on the foundation 1, or with a large pull 3b horizontally arranged on the bundle 2 with an appropriate interval. The joist 4 is arranged and a flooring (not shown) is arranged on the joist 4 (hereinafter, the base 3a and the large pull 3b are collectively referred to as a floor structure 5). And a heat insulating material is arrange | positioned between the floor structures 5 and 5 or between joists 4 and 4. FIG. Further, in recent years, a method called “rigid floor” in which the joists 4 are omitted and a thick floor board is directly disposed on the floor structure 5 is also in widespread use. Is arranged.

  In order to arrange the heat insulating material between the floor structures 5, 5, for example, as shown in FIG. 20, the receiver 6 is fixed to the side surfaces 5 a facing each other of the floor structures 5, 5, and the receiver 6 The end surface of the heat insulating material 7 is held on the receiving surface 6a of the floor structure 5 and the heat insulating material 7 is disposed between the floor structures 5 and 5, for example, as shown in FIG. And a method of disposing the heat insulating material 7 between the floor structures 5 and 5 by holding the end portions of the heat insulating material 7 on the receiving surface 6a of the receiving device 6 and fixing them to the upper surface 5b and the side surface 5a. Widely done.

  However, since only the both ends of the heat insulating material 7 are supported by the support 6, the vicinity of the center portion of the heat insulating material 7 hangs down by its own weight. For this reason, a space | gap produced between the heat insulating material 7 and the floor board, and there existed a problem that heat insulation defect | deletion and dew condensation were easy to produce.

  In order to prevent such drooping of the heat insulating material 7, for example, Patent Document 1 discloses a support portion that is placed on the upper surface of a floor structure, a wall portion that extends downward from one end of the support portion in a perpendicular direction, A pair of crosspiece fixtures provided with a receiving portion extending in a direction substantially perpendicular to the lower end of the wall portion and on the opposite side of the support portion is disposed on the opposing floor structure, and falling from the fixture is prevented. There is disclosed a support structure for a heat insulating material in which a crosspiece having ribs for both ends is inserted into the slits provided in the receiving portions of the pair of fixtures to hold both ends thereof.

Patent Document 2 discloses a support piece having an insertion hole, a vertical piece projecting upward from one end of the support piece, and a floor structure projecting from the upper end of the vertical piece to the opposite side of the support piece. A pair of crosspiece fixtures each provided with a locking piece to be a locking portion is disposed on the opposing floor structure and supports the heat insulating material by inserting the crosspieces into the insertion holes of the fixtures. A structure is disclosed.
JP 2003-321929 A Japanese Patent Application Laid-Open No. 7-54474

  However, the crosspiece described in Patent Document 1 has a complicated shape and takes time and effort. For this reason, material cost was required. Further, the crosspiece has a shape that is easily damaged or deformed, and there is a problem in terms of transportability and handling.

  Moreover, in the support structure of the floor heat insulating material described in Patent Document 2, a load applied to the crosspieces and the insertion holes of the crosspieces is large. For this reason, if a crosspiece lacking flexibility is used, the load applied to the crosspiece fixture and the crosspiece will increase, and the crosspiece fixture may be deformed or damaged, or the crosspiece may not be deformed. There was a risk of damage. Moreover, when a flexible material was used as the crosspiece, bending was likely to occur as the crosspiece was elongated, and it was difficult to withstand the weight of the heat insulating material and the like, and it was easy to bend downward. For this reason, the space | gap may arise between a floor board and a heat insulating material depending on the kind of heat insulating material, the installation space | interval of a floor structure, etc.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mounting member for a crosspiece, in which a crosspiece is arranged between the structures of a building so that a heat insulating material or the like can be installed without drooping, and a support structure for a floor insulation using the same. It is in.

  In order to achieve the above object, the crosspiece fixture according to the present invention is a crosspiece fixture for holding the end of a crosspiece in a square-like structure of a building. A locking piece portion that is locked to the upper surface of the structure, a first vertical piece portion that contacts the wall surface of the structure, and a horizontal direction from the first vertical piece portion. A presser piece that extends, and a second vertical piece that hangs down from the tip of the presser piece, and a lower surface of the presser piece is formed with a convex portion that contacts the upper surface of the end of the crosspiece. The second vertical piece is provided with a front opening into which the end of the crosspiece is inserted, and the distance when viewed in the horizontal direction between the lower side of the front opening and the lower end of the convex part Is shorter than the vertical thickness of the crosspiece, and the crosspiece is inserted into the front opening at the end of the crosspiece. Is supporting the lower surface of join the club on the lower side of the front opening, wherein the protruding portion of the pressing piece portion on the upper surface of the insertion portion is supported while abutting.

  According to the above-described crosspiece fixture of the present invention, when the end of the crosspiece is inserted through the front opening, the lower surface of the crosspiece insertion portion is supported on the lower side of the front opening, and the upper surface of the crosspiece insertion portion The end of the crosspiece is held at an angle such that the central portion of the crosspiece faces upward by contacting the convex portion of the presser piece. As a result, the center part of the crosspiece is prevented from bending downward, and when the heat insulating material is placed on the crosspiece, the heat insulating material is bent downward at the central part and between the floor and the like. It is possible to prevent gaps from being generated.

  Further, the presser piece portion is extended with a width from one side of the first vertical piece portion to the other side, and the other side portion of the first vertical piece portion is more than the presser piece portion. Is also extended downward in a predetermined length, and then extends in a horizontal direction in parallel with the presser piece, and forms a connecting piece connected to one side of the lower side of the front opening, and the presser piece It is preferable that a side opening continuous with the front opening is provided between the connecting piece and the connecting piece. According to this aspect, since the end portion of the crosspiece can be inserted into the front opening through the side opening, it is easy to attach the crosspiece. In addition, one side of the lower side of the front opening of the second vertical piece is connected to the first vertical piece by the connecting piece, and the second vertical piece is prevented from bending in the wall direction of the structure. When the edge part of a crosspiece is held, the force which makes the center part of a crosspiece upward can be improved more.

  Moreover, it is preferable that the distance when it sees in the horizontal direction of the lower side of the said front opening part and the lower end of the said convex part is 0.1-1 mm shorter than the up-down direction thickness of the said crosspiece. According to this aspect, when the edge part of a crosspiece is hold | maintained, the force which makes the center part of a crosspiece upward can be improved more.

  Further, in a state before use, the locking piece portion forms the same plane as the first vertical piece portion, and a groove and / or a hole is provided between the locking piece portion and the first vertical piece portion. It is preferable that a plurality of folding lines are formed in parallel at a predetermined interval. According to this aspect, the position where the locking piece portion is bent with respect to the first vertical piece portion can be changed according to the thickness of the heat insulating material or the like placed on the crosspiece, so that the application range can be expanded. .

  Moreover, it is preferable that an engaging claw that protrudes downward to bite into the upper surface of the structure is cut and raised in the locking piece. According to this aspect, the fixture can be attached to the structure simply by bringing the locking piece into contact with the upper surface of the structure and striking the engaging claw into the structure by hitting it with a hammer or the like.

  On the other hand, the floor heat insulating material support structure according to the present invention is configured such that the mounting tool is placed in a longitudinal direction of the floor structure at a position facing a square-shaped floor structure horizontally disposed at a predetermined interval. A plurality of crosspieces are arranged by holding the opposite ends of the crosspieces on the fixtures arranged opposite to each other at predetermined intervals, and supporting the heat insulating material on these crosspieces. It was made to be characterized.

  According to the support structure for a floor heat insulating material of the present invention, the crosspiece can be easily attached, and the central portion of the crosspiece does not bend downward, so that the heat insulating material is brought into close contact with the lower surface of the floor surface. It can be arranged.

  According to the present invention, since the end portion of the crosspiece can be held at an angle such that the central portion of the crosspiece is directed upward, the central portion of the crosspiece can be prevented from being bent downward, and heat insulation is provided on the crosspiece. When a material or the like is placed, it is possible to prevent the heat insulating material or the like from being bent downward at the central portion and generating a gap between the floor and the like.

  In the following, the crosspiece fixture of the present invention will be described with reference to the drawings.

  1 to 3 show a first embodiment of a crosspiece fixture according to the present invention. FIG. 1 is a perspective view showing a usage state of the crosspiece fixture, and FIG. FIG. 3 is a perspective view showing a state before use of the fixture for the material, and FIG. 3 is a cross-sectional view showing a state of use of the fixture for the crosspiece.

  As shown in FIG. 1, the crosspiece fixture 15 includes a locking piece 20 that is locked to an upper surface 10 a of a square-like structure of a building (hereinafter referred to as “building structure 10”). A first vertical piece 21 that is brought into contact with the wall surface 10 b of the building structure 10, a presser piece 22 that extends in the horizontal direction from the first vertical piece 21, and a tip of the presser piece 22. And a second vertical piece 23.

  As shown in FIG. 2, the locking piece 20 is not bent with respect to the first vertical piece 21 in the state before use, and the locking piece 20 and the first vertical piece 21 are not bent. Are on the same plane. Between the locking piece 20 and the first vertical piece 21, a plurality of fold lines 26 each including a groove 26a and a hole 26b are provided in parallel at predetermined intervals (three in this embodiment). ing. As will be described later, the most suitable folding line 26 is selected according to the thickness of the heat insulating material at the time of use, and the locking piece portion 20 is bent with respect to the first vertical piece portion 21 at that portion. Yes.

  Referring also to FIG. 3, the presser piece portion 22 is provided with a plurality (two in this embodiment) of convex portions 24 protruding downward. As will be described later, the convex portion 24 becomes a portion that comes into contact with the upper surface of the crosspiece when the crosspiece 40 is inserted.

  The second vertical piece 23 is provided with a substantially rectangular front opening 25 into which the end of the crosspiece 40 is inserted. And the distance T1 when it sees in the horizontal direction of the lower side of the front opening part 25 and the lower end of the convex part 24 is shorter than the up-down direction thickness T2 of the crosspiece 40 to insert.

  An engaging claw 28 projecting downward for biting into the upper surface 10a of the building structure 10 is formed in the locking piece 20 in a cut-and-raised shape. A plurality of engagement claws 28 are preferably provided, and in this embodiment, three engagement claws 28 are formed.

  The crosspiece fixture 15 can be formed by punching and bending a metal plate such as a steel plate, a stainless steel plate, and various plated steel plates with a mold or the like.

  The plate thickness T3 of the crosspiece fixture 15 is preferably 0.3 to 1.5 mm, and more preferably 0.4 to 1.0 mm. If the plate thickness T3 is less than 0.3 mm, the strength is inferior, and the second vertical piece 23 or the like may be bent due to the weight of the heat insulating material or the crosspiece 40, and the crosspiece 40 may not be held firmly. If the thickness exceeds 1.5 mm, for example, when a floor board or the like is constructed on the building structure 10, unevenness of the floor board surface or floor noise may occur.

  The distance T1 when viewed in the horizontal direction between the lower side 25a of the front opening 25 and the lower end of the convex portion 24 is preferably 0.1 to 1.0 mm shorter than the vertical thickness T2 of the crosspiece 40, More preferably, it is shorter by 0.3 to 0.6 mm. If the difference between T1 and T2 is less than 0.1 mm, the force to turn the central portion of the crosspiece 40 upward may be insufficient. If it exceeds 1.0 mm, the second vertical piece 23 is deformed. There is a risk of doing so.

  Moreover, 7-30 mm is preferable and, as for the distance D1 between the front-end | tip of the holding piece part 22, and the convex part 24, 8-15 mm is more preferable.

  Further, in FIG. 1, the lateral width W1 of the front opening 25 of the crosspiece fixture 15 is preferably 0 to 15 mm larger, more preferably 2 to 10 mm larger than the lateral width W2 of the crosspiece 40 to be inserted.

  The vertical width H1 of the front opening 25 of the crosspiece fixture 15 is preferably 0 to 2 mm, and more preferably 0.5 to 1 mm, greater than the thickness T2 of the crosspiece 40 to be inserted.

  In use, the height H2 (FIG. 1) of the first vertical piece 21 is preferably 1 to 2 mm lower than the thickness T4 (FIG. 3) of the heat insulating material 50 to be used. Thereby, the clearance gap between the floor board attached to the upper part of the building structure 10 and the heat insulating material 50 can be made small, for example, and the heat insulation fall can be suppressed as a result.

  The shape of the convex part 24 is not specifically limited, Shapes, such as circular, a square, and an ellipse, are mentioned. Further, when the plate thickness T3 of the fixture 15 is thick, etc., as shown in FIG. 4, a part of the presser piece 22 may be cut and protruded downward.

  Next, an embodiment of the support structure for a floor heat insulating material according to the present invention using the crosspiece fixture 15 will be described.

  First, the fold line 26 selected according to the thickness T4 of the heat insulating material to be used is bent to form the locking piece 20 at a right angle with respect to the first vertical piece 21.

  Then, as shown in FIG. 5 (a), the crosspiece fixtures 15 are respectively attached to the opposed positions of the pair of floor structures 10 and 10. At this time, as shown in FIGS. 1 and 3, the first vertical piece 21 is brought into contact with the wall surface 10b of the floor structure 10, and the locking piece 20 is brought into contact with the upper surface 10a. By attaching the engaging claw 28 to the floor structure 10 by hitting the upper surface of the bracket with a hammer or the like, the fixture 15 can be easily fixed.

  A plurality of the attachment tools 15 attached so as to face each other are arranged at predetermined intervals along the longitudinal direction of the floor structure 10. In the case where the crosspiece 40 is longer than the distance L between the floor structures 10 and 10, for example, as shown in FIG. You may arrange | position to the position moved by the distance P1 and the slide.

  Next, both ends of the crosspiece 40 are inserted into the front openings 25 of the corresponding pair of attachments 15, and the crosspieces 40 are supported by the attachments 15. At this time, as shown in FIG. 3, the lower surface of the insertion portion of the crosspiece 40 is supported by the lower side 25 a of the front opening 25, and the upper surface of the insertion portion of the crosspiece 40 is formed on the convex portion 24 of the presser piece portion 22. Since it abuts, the crosspiece 40 is held at an angle such that the central portion faces upward. As a result, the central portion of the crosspiece 40 to be held is difficult to bend downward, and when the heat insulating material 50 or the like is placed on the crosspiece 40, the heat insulating material 50 or the like is bent downward at the central portion and the floor surface or the like. It is possible to prevent a gap from being generated.

  If the width W1 of the front opening 25 is substantially equal to the width W2 of the crosspiece 40 to be inserted into the front opening 25, the crosspiece will be attached if the fixture 15 is attached to the structure 10 in advance. In this case, before attaching the fixture 15 to the floor structure 10, the crosspiece 40 is inserted into the crosspiece fixture 15. Install after.

  Thereafter, as shown in FIG. 6, by installing a heat insulating material 50 on the crosspiece 40, the floor heat insulating material support structure of the present invention can be obtained.

  Thus, since the heat insulating material 50 is supported by the crosspiece 40 supported so that a center part may curve upwards, the support structure of the heat insulating material for floors of this invention is the center of the width direction of the heat insulating material 50. The part does not hang down due to its own weight, and the gap between the flooring and the heat insulating material can be made as small as possible, thereby eliminating the occurrence of heat insulation defects and condensation.

  In the support structure for a floor heat insulating material of the present invention, the crosspiece 40 is not particularly limited, and examples thereof include a plate shape made of metal, plastic, wood, hard cardboard, etc., a square pipe shape, and the like, and has two parallel surfaces. Those having a quadrilateral cross-sectional shape are preferred. An example of the cross-sectional shape of the crosspiece 40 is shown in FIGS. Moreover, the dimension of the crosspiece 40 is not particularly limited. For example, in the case of plate-like wood, a thickness of 6 to 20 mm and a width of 9 to 50 mm are preferable. Moreover, in the case of each metal pipe, thickness 6-20mm and width 9-50mm are preferable. In the case of a plate-like plastic, a thickness of 9 to 30 mm and a width of 9 to 50 mm are preferable.

  Moreover, in the support structure of the heat insulating material for floors of this invention, there is no limitation in particular as the said heat insulating material 50, For example, the mat-shaped or board-shaped heat insulating material which consists of inorganic fibers, such as glass wool and rock wool, polyethylene, polystyrene And foam boards such as urethane. In particular, in the support structure of the present invention, when an inorganic fiber-based heat insulating material is used, the deflection of the central portion of the heat insulating material can be reduced. And the thickness of the heat insulating material 50 can choose arbitrary thickness by the heat insulation level of a house, and the material of a heat insulating material, As a heat insulating material for floors, generally thickness 25mm, 35mm, 42mm Things are widely used.

  8 to 16 show a second embodiment of a crosspiece fixture according to the present invention. 8 is a perspective view of a state before using the mounting member for the crosspiece, FIG. 9 is a development view of the mounting member for the crosspiece, and FIG. 10 is a usage state of the mounting portion for the crosspiece. FIG. 11 is a plan view of the usage state of the mounting member for the crosspiece, FIG. 12 is a front view of the usage state of the mounting fixture for the crosspiece, and FIG. 14 is a bottom view of the usage state of the fixture of the material, FIG. 14 is a rear view of the usage status of the fixture of the crosspiece, and FIG. 15 is a right side view of the usage state of the fixture of the crosspiece. FIG. 16 is a left side view of the usage state of the mounting member for the crosspiece. In addition, the part which is characteristic as the external appearance of this fixture is the lower part shown by the arrow AA of the dashed-dotted line of FIG.

  As in the above-described embodiment, the crosspiece fixture 15a includes a locking piece 20 that is locked to the upper surface of the structure, a first vertical piece 21 that is in contact with the wall surface of the structure, The presser piece 22 extends horizontally from the first vertical piece and the second vertical piece 23 hangs down from the tip of the presser piece 22. Further, a convex portion 24 that abuts the upper surface of the end portion of the crosspiece is formed on the lower surface of the presser piece portion 22, and a front opening 25 is formed on the front surface of the second vertical piece portion 23. Similarly to the above-described embodiment, the convex portion 24 has a shape such as a circle, a quadrangle, an ellipse or the like, or when the plate thickness T3 of the fixture 15 is thick as shown in FIG. It is also possible to cut and raise a part of and project downward.

  However, the fixture 15a is different from the above-described embodiment in the following points. That is, the presser piece 22 extends with a width W3 (FIG. 10) extending from one side of the first vertical piece 21 to the other side. Further, the other side portion of the first vertical piece portion 21 indicated by the width W4 (FIG. 10) extends below the presser piece portion 22 by a predetermined length, and is then parallel to the presser piece portion 22 in the horizontal direction. A side opening that extends and forms a connecting piece 27 connected to one side of the lower side of the front opening 25 and is continuous with the front opening 25 between the holding piece 22 and the connecting piece 27. 29 is provided.

  In this embodiment, the vertical width H3 (FIG. 10) of the side opening 29 is larger than the thickness of the crosspiece 40 to be inserted, and 0.1 to 0 than the vertical width H1 (FIG. 10) of the opening 25. .5 mm shorter is preferred. According to this, a step is generated between the connecting piece portion 27 and the lower side 25a of the front opening 25, and the side portion of the crosspiece 40 is caught by the step, so that the horizontal deviation of the crosspiece 40 is prevented. it can.

  The crosspiece fixture 15a is formed by bending 90 ° between A-A, B-B, C-C, and D-D of a metal plate punched out as shown in FIG. 9, for example. Can be formed.

  As shown in FIG. 18, also in this crosspiece fixture 15a, the folding line 26 selected according to the thickness of the heat insulating material to be applied is bent, and the first vertical piece is formed on the wall surface 10b of the floor structure 10. 21, the locking piece 20 is brought into contact with the upper surface 10a, and the upper surface of the locking piece 20 is struck with a hammer or the like so that the engaging claw 28 is bitten into the floor structure 10. 15 can be easily fixed.

  In this way, a plurality of a pair of attachments 15 a attached to the opposing portions of the pair of floor structures 10 are arranged at predetermined intervals along the longitudinal direction of the floor structure 10. In this state, both ends of the crosspiece 40 are held by a pair of opposing fixtures 15a. In this embodiment, the end of the crosspiece 40 is attached as shown by an imaginary line in FIG. Since it can insert in the front opening part 25 through the side opening part 29 of the tool 15a, attachment of the crosspiece 40 can be performed easily.

  And if the edge part of the crosspiece 40 is inserted in the front opening part 25, as mentioned above, the side part of the crosspiece 40 will be caught in the level | step difference between the connection piece part 27 and the lower side 25a of the front opening part 25. Therefore, the horizontal shift of the crosspiece 40 is prevented.

  Moreover, since one side of the lower side 25a of the front opening part 25 of the 2nd vertical piece part 23 is connected with the 1st vertical piece part 21 by the connection piece part 27, the building structure of the 2nd vertical piece part 23 10 can be prevented from bending in the direction of the wall surface 10b. For this reason, when the edge part of the crosspiece 40 is hold | maintained, the force which makes the center part of the crosspiece 40 upward can be improved more.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated still in detail, this invention is not limited to this.

Example 1
10 to 16 obtained by forming a steel plate having a thickness (T3) of 0.6 mm, shown in FIGS. 10 to 16 (W1: 26 mm, W3: 34 mm, W4: 12 mm, H1: 13 mm, H2: 42 mm) , H3: 12.5 mm, T1: 11.5 mm, D1: 9 mm), as shown in FIG. 18, three sets of floor structures 10 and 10 having L = 805 mm were attached at intervals of P = 700 mm.

  Then, the crosspiece 40 (plywood having a thickness (T2): 12 mm, a width (W2): 20 mm, and a length: 800 mm) is pivoted horizontally as shown in FIG. It was inserted into the front opening 25 through the side opening 28 of the tool 15. At this time, the deflection of the central portion of the crosspiece was 1 mm or less, and almost no deflection was observed.

Next, a glass wool heat insulating material 50 (density: 32 kg / m ³ , thickness (T4): 42 mm, width: 805 mm, length: 1715 mm) was placed on the crosspiece 40 so that the distances at both ends were equal. .

  The initial deflection of the center portion between the crosspieces of the glass wool heat insulating material supported by this fixture (point A in FIG. 18) was 1 mm or less, and the deflection after one month had also been 1 mm or less. Moreover, the bending after one month progress of the length direction edge part (B point of FIG. 18) of this heat insulating material was also 1 mm or less.

BRIEF DESCRIPTION OF THE DRAWINGS It is 1st Embodiment of the fixture of the crosspiece of this invention, Comprising: It is a perspective view which shows the use condition. It is a perspective view which shows the state before use of the fixture of the same material. It is sectional drawing which shows the use condition of the fixture of the same crosspiece. It is a modification of the perspective view which shows the state before use of the fixture of the crosspiece. It is a top view which shows the example of attachment of the fixture of the crosspiece of 1st Embodiment. It is a front view of the support structure of the heat insulating material for floors of this invention. It is sectional drawing which shows an example of a crosspiece. It is 2nd Embodiment of the fixture of the crosspiece of this invention, Comprising: It is a perspective view of the state before use. It is an expanded view of the fixture of the crosspiece. It is a perspective view of the state of use of the fixture of the crosspiece. It is a top view of the use condition of the fixture of the crosspiece. It is a front view of the use condition of the fixture of the crosspiece. It is a bottom view of the use state of the fixture of the crosspiece. It is a rear view of the use state of the fixture of the crosspiece. It is a right view of the use condition of the fixture of the crosspiece. It is a left view of the use condition of the fixture of the crosspiece. It is a modification of the perspective view which shows the state before use of the fixture of the crosspiece. It is a top view which shows the example of attachment of the fixture of the crosspiece of 2nd Embodiment. It is a schematic perspective view which shows an underfloor structure. It is sectional drawing which shows the support structure of the conventional heat insulating material for floors. It is sectional drawing which shows the support structure of the other conventional heat insulating material for floors.

Explanation of symbols

1: foundation 2: bundle 4: joist 5, 10: structure (floor structure)
6: Receiving tool 7, 50: Insulating material 10: Building structure 15, 15a: Bracket fixture 20: Locking piece 21: First vertical piece 22: Holding piece 23: Second vertical piece 24: convex part 25: front opening part 26: fold line 26b: hole 26a: groove 27: connecting piece part 28: engagement claw 29: side opening part 40: crosspiece

Claims (6)

  In a crosspiece fixture for holding the end of a crosspiece in a square-like structure of a building, a metal plate is punched and bent, and is locked to the upper surface of the structure A locking piece, a first vertical piece abutting against the wall surface of the structure, a presser piece extending horizontally from the first vertical piece, and hanging from the tip of the presser piece A convex portion that is in contact with the upper surface of the end of the crosspiece is formed on the lower surface of the presser piece, and the end of the crosspiece is inserted into the second vertical piece. The front opening is provided, the distance when viewed in the horizontal direction between the lower side of the front opening and the lower end of the convex portion is shorter than the vertical thickness of the crosspiece, An end of the crosspiece is inserted into the front opening, and the lower surface of the insertion section of the crosspiece is supported by the lower side of the front opening, Fixture crosspieces, characterized in that the projections of the pressing piece portion on the upper surface parts are supported while abutting.   The presser piece portion extends with a width from one side of the first vertical piece portion to the other side, and the other side portion of the first vertical piece portion is more predetermined than the presser piece portion. After extending downward in length, it extends in the horizontal direction in parallel with the presser piece, and forms a connecting piece connected to one side of the lower side of the front opening, and the presser piece and the The crosspiece fixture according to claim 1, wherein a side opening continuous to the front opening is provided between the connecting piece.   3. The bar material according to claim 1, wherein a distance between the lower side of the front opening and a lower end of the convex portion when viewed in the horizontal direction is 0.1 to 1 mm shorter than a vertical thickness of the bar material. Mounting tool.   In a state before use, the locking piece portion is formed in the same plane as the first vertical piece portion, and includes a groove and / or a hole between the locking piece portion and the first vertical piece portion. The crosspiece fixture according to any one of claims 1 to 3, wherein a plurality of folding lines are formed in parallel at predetermined intervals.   The crosspiece according to any one of claims 1 to 4, wherein an engaging claw that protrudes downward to bite into the upper surface of the structure is formed in the locking piece portion in a cut-and-raised shape. Mounting tool.   The crosspiece fixture according to any one of claims 1 to 5, wherein the length of the floor structure is set at a position opposite to the square-like floor structure arranged horizontally at a predetermined interval. A plurality of crosspieces are installed by attaching a plurality of crosspieces to each of the above-mentioned crosspiece fixtures, which are mounted at predetermined intervals along the length direction, and holding both ends of the crosspieces. A structure for supporting a heat insulating material for a floor, characterized by supporting a heat insulating material on the top.

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