JP4353152B2 - Structure of body edge and fastener for exterior panel - Google Patents

Description

  The present invention relates to a structure of a trunk edge and a fastener for an exterior panel, and more particularly, to a technique that can stably maintain fixation without easily removing the fastener even if the trunk edge is deformed.

  Conventionally, the body edge for attaching the exterior panel to the outer wall body of the building has been mainly made of wood for reasons of workability and ease of attachment, and in many cases, nails are often used for attaching the exterior panel to the body edge. Is used.

In this case, since the nail head is exposed, rusting is likely to occur. Therefore, even if the exterior panel is nonflammable and has durability, there is a problem that the durability of the entire building is inferior. In addition, deterioration due to aging of the wood is unavoidable, and there is a disadvantage that the warp and decay of the wood are likely to occur, so that the fixed nail floats and the exterior panel may fall off.
In order to solve these problems, the description of Patent Document 1 is known. According to Patent Document 1, as shown in FIGS. 10 and 11, a body edge 63 and a fastener 64 for an exterior panel 62 are provided on an outer wall body 61 of a building, and the body edge 63 has an opening on the outdoor side. It has a cross-sectional structure and is fixed to the outer wall main body 61 through the attachment portion 66 of the trunk edge 63 by a nail 65.

  Engaging portions 69 are provided on both sides of the front portion 67 of the fastener 64, and the engaging portions 69 are inserted into the fitting portions 68 of the trunk edge 63. Here, the engaging portion 69 is provided so as to open slightly outward.

  For this reason, since the engaging part 69 is elastically inserted and accommodated in the fitting part 68 of the trunk edge 63, the clasp 64 can hold the state fixed to the trunk edge 63 unless a large external force is applied. However, if the fastener 64 is pulled, the body edge 63 can be freely slid along the fitting portion 68.

    A support piece 70 is provided on the clasp 64 so as to protrude to the opposite side of the engaging portion 69, and the support piece 70 includes an upper support piece 71 and a lower support piece 72. The upper and lower exterior panels 62 are supported by the support piece 72.

In this way, the fastener 64 can freely slide up and down in the trunk edge 63, so that the fastener 64 can be attached to any position according to the exterior panel 62, and the exterior panel can be removed. Disappear.
Japanese Utility Model Publication No. 5-35944

 When forming the outer wall of the building, an exterior panel with real parts (male, female) on the upper and lower ends is generally used. After the lower exterior panel is first attached to the trunk edge via a fastener, The work of sequentially mounting the outer panel by placing the real part of the upper outer panel together on the outer panel is performed.

However, in the above-described structure for attaching the exterior panel to the trunk edge, the fastener must be inserted from the end in the longitudinal direction of the trunk edge in order to attach the fastener to the trunk edge.
And, for each installation of the exterior panel, the operator moves away from the location of the exterior panel to a height where there is an end in the longitudinal direction of the trunk edge and does not insert a fastener into the trunk edge. Work efficiency is very bad.

 For this reason, although it is an idea that has already been proposed, it is possible to easily attach the fastener to the trunk edge at any position in the length direction of the trunk edge, and improve the workability of exterior panel mounting. There are torso and fasteners.

 As shown in FIG. 12, the trunk edge 3 for the exterior panel 2 provided on the outer wall main body 1 is a long material having a U-shaped cross section composed of a bottom surface 5 having an opening 3a on the outdoor side and two side surfaces 6. Thus, stoppers 8 are erected at both opening end portions 7 toward the inside of the opening.

 The stopper 8 is formed by a short side as a lip 8a attached at right angles to both opening end portions 7, and a flange 8b provided parallel to the side surface 6 from the tip end portion of the lip 8a toward the bottom surface 5.

 The fastener 4 is a short material having a U-shaped cross section composed of a bottom surface 10 and two side surfaces 11, and both side surfaces 11 of the fastener 4 are fitted so that the fastener 4 is fitted at an arbitrary position in the longitudinal direction of the trunk edge 3. A locking projection 14 is provided in the projection.

 The locking projection 14 gradually moves the both side surfaces 6 of the trunk edge 3 through the stopper 8 when the fastener 4 is inserted into the trunk edge 3 from the gap (opening 3a) between the stoppers 8 facing the trunk edge 3. A curved guide surface 12 that is elastically pushed to the outside, and a locking surface 13 that locks the stopper 4 from the indoor side when the fastener 4 is inserted into the trunk edge 3.

 Further, both side surfaces 11 of the fastener 4 are divided by a plurality of slits 15 and divided into a non-flexible side surface portion 16 and a flexible side surface portion 17, and the flexible side surface portion 17 has a U-shaped cross section than the non-flexible side surface portion 16. The tip 18 is formed so as to protrude from the tip 19 of the inflexible side 16. The flexible side surface portion 17 is bent by the front end portion 18 of the flexible side surface portion 17 being pressed against the bottom surface 5 of the trunk edge 3, and the locking projection 14 is elastically pressed against the stopper 8 by the reaction force. You can guess.

 If it is this structure, it can slide to a predetermined place, after pushing in and attaching the fastener 4 in the arbitrary positions of the length direction of the trunk | drum 3. FIG.

 However, since the locking surface 13 is a horizontal structure, when the fastener 4 is inserted into the trunk edge 3, if the trunk edge 3 is opened outward, the fastener 4 may move in the lateral direction.

 In particular, the trunk edge 3 varies in size depending on the manufacturer and has a slightly different shape, so that the fitting with the fastener 4 is affected.

 Furthermore, when the body rim 3 is attached to the ALC panel and metal siding is performed on the spot with the fastener 4, when the ALC panel is deformed due to an earthquake or the like, the body rim 3 is also deformed by the external force.

 For this reason, as shown in FIG. 13, since the locking surface 13 of the locking projection 14 is planar and abuts at a right angle to the flange 8b of the stopper 8, the trunk edge 3 faces outward as indicated by the arrow. When it is deformed, there is a possibility that the fastener 4 moves in the lateral direction, so that there is a problem that the stopper 8 slides on the locking surface 13 and comes off from the locking projection 14.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a structure of a trunk edge and a fastener for an exterior panel that can stably maintain the fixation without easily removing the fastener even if the trunk edge is deformed.

The invention according to claim 1 is a structure of a trunk edge and a fastener for an exterior panel provided on an outer wall body of a building, and the trunk edge is a U-shaped cross section having a bottom surface having an opening on the outdoor side and two side surfaces. A stopper is erected at both opening ends toward the inside of the opening, and the clasp is a U-shaped short material consisting of a bottom surface and two side surfaces, on the outside of the bottom surface, It has a mounting piece that clamps the outer panel and presses it against the bottom surface of the fastener with screws, and this mounting piece has the same rectangular width as the fastener and parallel to the fastener, and protrudes from the fastener. It consists of one side of the sandwiched part and a protruding part that adheres,
A hole for the screw is provided on the bottom surface of the fastener, and an insertion hole for the screw is provided in the clamping portion of the mounting piece so as to face the hole.
A ring spring projecting from an opening provided on both side surfaces of the fastener so as to fit the fastener at an arbitrary position in the longitudinal direction of the trunk edge; and When the metal fitting is inserted into the trunk edge, the ring spring is reduced in diameter to both side surfaces of the fastener, and when the fastener is inserted into the trunk edge, the diameter is increased to the side surface of the trunk edge and the stopper. It is a ring spring to be locked.

 If it is the structure of the body edge and the fastener for the exterior panel, since the fastener is provided with a ring spring, when inserting the fastener into the inside of the trunk edge from the gap of the stopper facing the trunk edge, The ring spring is reduced in diameter to both side surfaces of the fastener, and when the fastener is inserted into the trunk edge, the diameter of the ring spring is increased and the ring spring can be engaged with the side face of the trunk edge and the stopper.

 Furthermore, an attachment piece having a substantially rectangular sandwiching portion that is the same width as the fastener and parallel to the fastener is provided outside the bottom surface of the fastener, and the exterior panel can be sandwiched and fixed by the attachment piece. .

 In addition, a hole for the screw is provided on the bottom surface of the fastener, and an insertion hole for the screw is provided in the clamping portion of the mounting piece so as to face the hole, so that the exterior panel is attached to the bottom surface of the fastener. It can be fixed in close contact with a screw between the sandwiched portion of the piece (the same width as the width of the fastener).

 According to a second aspect of the present invention, there is provided a structure of a body edge and a fastener for an exterior panel according to the first aspect, wherein a drop-off preventing claw for preventing the ring spring from dropping when the diameter of the ring spring is reduced and enlarged is provided inside the fastener. It is characterized by being provided in.

 Invention of Claim 3 is the structure of the trunk | rim edge and fastener for exterior panels of Claim 1 or Claim 2, Comprising: The said ring spring is each one each from the opening part of the both sides | surfaces of the said fastener, or It is characterized by a ring shape protruding at every two places.

Invention of Claim 4 is the structure of the trunk | rim edge and fastener for exterior panels of Claim 1, Comprising: The circumference | surroundings of the insertion hole for screws of the clamping part of the attachment piece provided in the said fastener are It is characterized by a concave rib structure (concave when viewed from the mounting piece).

 For this reason, the strength of the mounting piece can be increased.

 The invention of claim 5 is a structure of a body edge and a fastener for an exterior panel provided on the outer wall body of the building according to claim 1 or 2, wherein both sides of the fastener have a plurality of slits. And is divided into an inflexible side surface portion and a flexible side surface portion, and the flexible side surface portion is inclined to the inner side of the U-shaped cross section with respect to the inflexible side surface portion, and the tip portion thereof is more than the tip portion of the inflexible side surface portion. It is characterized by being formed to protrude.

  With this outer panel body edge and fastener structure, the flexible side surface portion is inclined to the inner side of the U-shaped cross section from the non-flexible side surface portion, and the tip portion is formed to protrude from the non-flexible side surface portion. Thus, the distal end portion of the flexible side surface portion is pressed against the bottom surface of the trunk edge, so that the flexible side surface portion is bent and the locking projection is elastically pressed against the stopper.

 The invention according to claim 6 is the structure of the body edge and the fastener for the exterior panel according to claims 1 to 3, wherein the tip of the flexible side surface is in contact with the bottom surface of the fastener. It is characterized by having a surface.

  If it is the structure of the trunk | rim edge and fastener for this exterior panel, the contact surface of the front-end | tip part of the said flexible side part can surface-contact with the bottom face of a trunk | drum.

  The invention according to claim 7 is the structure of the trunk edge and the fastener for the exterior panel according to any one of claims 1 to 4, and is erected toward the inside of the opening at both opening ends of the trunk edge. The stopper is characterized by comprising a lip erected at right angles to both opening end portions and a flange projecting from the lip tip portion toward the bottom surface.

  Since the flange is projected from the body edge and the fastener structure for the exterior panel, the strength of the stopper can be reinforced.

 According to the first aspect of the present invention, since the clasp is provided with a ring spring, the ring spring is reduced in diameter and the clasp is inserted into the trunk edge. Can be locked to the side surface and the stopper.

 For this reason, a fastener can be mounted | worn in the arbitrary positions of the length direction of a trunk edge, and it can slide to a predetermined position.

Further, even when the trunk edge is deformed, the ring spring can always be locked to the side face of the trunk edge and the stopper, so that the fastener can be stably fixed without being easily detached.
Further, a hole for the screw is provided on the bottom surface of the fastener, and an insertion hole for the screw is provided in the clamping portion of the mounting piece so as to face the hole, so that the exterior panel is attached to the bottom surface of the fastener. Since it can be fixed tightly with a screw between the clamped part of the mounting piece (the same width as the fastener), the exterior panel will not be rolled and peeled even if wind pressure is applied to the installed exterior panel .

 According to the invention of claim 2, since the drop-off preventing claw for preventing the ring spring from falling off when the diameter of the ring spring is reduced and enlarged is provided inside the clasp, the ring spring can be stably reduced and enlarged in diameter. Even when the edge is deformed, the ring spring can always be locked to the side surface of the trunk edge and the stopper, so that the fastener can be maintained without being easily detached.

 According to invention of Claim 3, since the said ring spring is a ring shape which protrudes for every one place or every two places from the opening part of the both sides | surfaces of the said fastener, since a ring shape can be selected according to a field condition, it is general purpose. Sex is obtained.

  According to the invention of claim 4, since the strength of the mounting piece can be increased, even if negative pressure due to wind is applied to the mounted exterior panel, the exterior panel does not rub and peel without fail, improving reliability. . Moreover, since the concave rib structure also serves as a washer when the screw is screwed, the tightening effect by the screw is improved.

 According to a fifth aspect of the present invention, the distal end portion of the flexible side surface portion is pressed against the bottom surface of the trunk edge, so that the flexible side surface portion is bent and the locking projection is elastically pressed against the stopper. Therefore, the fastener can be attached at an arbitrary position in the length direction of the trunk edge, and even if an accuracy error occurs in the trunk edge, the fastener can be stably held without rattling.

  According to the sixth aspect of the present invention, the distal end portion of the flexible side surface portion can come into surface contact (not line contact) with the bottom surface of the trunk edge, so that even if an accuracy error occurs in the trunk edge, it is stopped. Since the metal fitting can be stably held on the trunk edge, the exterior panel can be stably attached.

  According to the seventh aspect of the present invention, since the flange can protrude and the strength of the stopper can be reinforced, the fastener can be stably held on the trunk edge, so that the exterior panel can be stably attached.

 Below, the 1st Embodiment of this invention is described based on FIGS.

<Structure of body edge and fastener for exterior panel>
As shown in FIG. 1 and FIG. 2, the trunk edge 3 and the fastener 4 for the exterior panel 2 provided on the outer wall body 1 of the building of the present invention are the bottom surface 5 having the trunk edge 3 having an opening 3 a on the outdoor side. Is a long material having a U-shaped cross section comprising two side surfaces 6 and is fixed to the outer wall main body 1 with a fixing tool 33 such as a screw, and stoppers 8 are erected at both opening end portions 7 toward the inside of the opening. .

 The stopper 8 is formed by a short side as a lip 8a attached at right angles to both opening end portions 7, and a flange 8b provided parallel to the side surface 6 from the tip end portion of the lip 8a toward the bottom surface 5.

 The fastener 4 is a short material having a U-shaped cross section composed of a bottom surface 10 and two side surfaces 11, and the fastener panel 31 sandwiches the exterior panel 2 outside the bottom surface 10 of the fastener 4. A mounting piece 21 that is pressed and fixed to the bottom surface 10 is fixed. The mounting piece 21 has the same width as the fastener 4 and is parallel to the fastener 4. It consists of one side of the part 21a and a protruding part 21b that is fixed.

 A perforation hole 31 a for the fixing tool 31 is provided on the bottom surface 10 of the fastener 4, and an insertion hole 31 b for the fixing tool 31 is provided in the sandwiching portion 21 a of the mounting piece 21 so as to face the perforation hole 31 a. The fixing tool 31 is screwed into the perforated hole 31a.

 Furthermore, a ring spring 44 that protrudes from an opening 42 provided on both side surfaces 11 of the fastener 4 is provided so as to fit the fastener 4 at an arbitrary position in the longitudinal direction of the trunk edge 3.

 The ring spring 44 is inserted by reducing the diameter to both side surfaces 6 of the fastener 4 when the fastener 4 is inserted into the interior of the barrel edge 3 from the opening 3 a of the stopper 8 facing the barrel edge 3. When the fastener 4 is inserted into the trunk edge 3, the diameter can be naturally elastically increased, and the side face 6 of the trunk edge 3 and the stopper 8 can be brought into contact and locked.

  Further, both side surfaces 11 of the fastener 4 are divided by a plurality of slits 15 and divided into a non-flexible side surface portion 16 and a flexible side surface portion 17, and the flexible side surface portion 17 has a U-shaped cross section than the non-flexible side surface portion 16. The tip 18 is formed so as to protrude from the tip 19 of the inflexible side 16. The flexible side surface portion 17 bends when the distal end portion 18 of the flexible side surface portion 17 is pressed against the bottom surface 5 of the trunk edge 3, and the ring spring 44 is elastically pressed against the stopper 8 by the reaction force. Can do.

  A gap is formed between the mounting piece 21 and the bottom surface 10 of the fastener 4, but since the mounting piece 21 is provided with a countersink portion 22, the clearance S for receiving the exterior panel 2 is the countersink portion 22 and the bottom surface 10. Formed between.

  Here, the exterior panel 2 is made of metal siding obtained by coating an internal heat insulating material (not shown) from both sides with a thin metal plate layer. A convex male solid 26 projects from the upper end portion 25 of the exterior panel 2, and the attached piece 27 projects (extends) the metal plate layer on the back side of the exterior panel 2 beyond the male 26. . The tip of the attached piece 27 is folded and protected by a thin coated metal plate layer of metal siding.

  Since the concave female seed 29 is provided at the lower end 28 of the exterior panel 2, it can be actually coupled to the convex male 26 of the upper end 25 of the adjacent exterior panel 2. Furthermore, a notch 30 for accommodating the attachment piece 21 of the fastener 4 is formed on the back side of the lower end portion 28 of the exterior panel 2.

  And the to-be-attached piece 27 of the exterior panel 2 is pinched | interposed between the attaching piece 21 and the bottom face 10 of the fastener 4, and is fixed by screwing the fixing tool 31 such as a screw into the perforated hole 31a.

 Here, the main dimensions of the body edge 3 are as follows: the inner distance between the two side faces 6 is R1, the distance between the two flanges 8b (opening 3a) is R2, the outer height of the side face 6 is H1, the flange 8b and the bottom face The opening distance between 5 is expressed as H2.

<Detailed structure of fastener 4>
As shown in FIGS. 3 and 4, the bottom surface 10 of the fastener 4 having a U-shaped cross section is formed to have a length L1 = 80 mm and a width M1 = 40 mm, for example, and an attachment piece 21 is formed on the bottom surface 10. The sandwiching portion 21a of the attachment piece 21 is formed in a region having the same width as the width M1 of the bottom surface 10 and a length N2 = approximately 26 mm from the central portion 36 with a gap S1 = 1, 8 mm in parallel with the bottom surface 10. Further, the fixing part 21c continues from the substantially central part 36 to the region of length L4 = about 16 mm through the protruding part 21b fixed to one side of the sandwiching part 21a, and the fixing part 21c is fixed to the bottom surface 10 with a pair of screws 57. Is done.

  A perforated hole 31a for attaching the exterior panel 2 is formed in a substantially central portion (position of a length N3 from the substantially central portion 36) of the sandwiching portion 21a of the mounting piece 21. Furthermore, the rectangular countersunk portion 22 surrounding the perforated hole 31a of the sandwiching portion 21a is formed in a concave rib structure with a depth S2 = 1 mm.

 In addition, in order to facilitate the insertion of the attached piece 27 of the exterior panel 2, the front opening is formed by a height S3 = 1, 8 mm from the free end 39 of the attachment piece 21 over a length S4 = 3 mm. .

 Each of the ring springs 44 having a diameter of approximately 1 mm and 5 mm, which is an elastic body, is in an oval shape having a major axis L2 = 65 mm and a minor axis M2 = 55 mm in a natural state. Although protruding, when the fastener 4 is inserted into the body edge 3, it is inserted with a reduced diameter to the vicinity of the fastener 4.

 The opening 42 has a length L3 = 60 mm and a height T2 = 2 mm on both side surfaces 11 of the fastener 4 and is formed at a position T1 = 3 mm from the bottom surface 10.

 Further, a drop-off preventing claw 43 for preventing the ring spring 44 from dropping into the clasp 4 when the diameter of the ring spring 44 is reduced or expanded is provided below the ring spring 44 at L3 = 20 mm, thickness T3. = 2 mm, the ring spring 44 can stably reduce and expand the diameter.

 Since the drop-off preventing claw 43 is formed by punching (shearing) the both side surfaces 11 of the fastener 4 using the side surface 11, it is formed in a curved state that is naturally added during punching.

  The two side surfaces 11 of the fastener 4 are divided into five by four slits 15 having a width P3 = 2 mm, and in order from the one end portion 35, an inflexible side surface portion 16 having a width P1 = 18 mm and a flexible side surface portion having a width P2 = 10 mm. 17 are arranged alternately. Here, the slit 15 is formed from the bottom surface 10 to a position of length Y = 8 mm.

  As shown in FIG. 5, the cross-sectional shapes of the non-flexible side surface portion 16 and the flexible side surface portion 17 are different.

  The cross-sectional shape of the inflexible side surface portion 16 is the position of the side surface 11 (width M1 = 40 mm), the height H3 = 19 mm, and the distal end portion 19 is long inward from the position 50 where the height H4 = 5 mm from the distal end portion 19. It is bent by an angle H5 = 1 mm (angle θ = approximately 10 degrees).

  The cross-sectional shape of the flexible side surface portion 17 is formed at a height of H5 = 20 mm at the position of the side surface 11 (width M1 = 40 mm), and the length Y1 = 1 mm (H5−H3) compared to the non-flexible side surface portion 16. 11 is high. The non-flexible side surface portion 16 is formed by bending from the bottom surface 10 to a position 52 having a length H7 from the position 51 (matching the upper end 51 of the slit 15) having a length Y = 8 mm (angle θ = approximately 10 degrees). The At this time, the position 52 is located at a length H6 from the distal end portion 18, and is at the same level as the position of the length H4 from the distal end portion 19 in the inflexible side surface portion 16.

  Further, a length H8 is bent from the position 52 to the tip portion 18, and a contact piece 53 (contact surface) substantially parallel to the bottom surface 5 is formed on the tip portion 18 with a length H9 = about 5 mm.

  Thus, the total length bent twice from the side surface 11 to the tip 18 is formed as H7 + H8 = 2 mm.

  The plate material used for the fastener 4 is a steel material of 0 or 8 mm.

<Relative relationship between trunk edge 3 and fastener 4>
In the relative relationship between the main dimension of the trunk edge 3 and the fastener 4 (in FIG. 1), the minor axis M2 = 55 mm of the ring spring 44 is formed larger than the inner distance R1 between the two side surfaces 6 of the trunk edge 3. When the length from the bottom surface 10 of the fastener 4 to the ring spring 44 is T1, the length (H3-T1) including the ring spring 44 from the distal end portion 19 of the non-flexible side surface portion 16 is the flange 8b of the trunk edge 3 and the bottom surface 5 It is formed to have substantially the same length as the opening distance H2. Further, the height H3 of the inflexible side surface portion 16 is formed to be the same as or slightly higher than the outer height H1 of the side surface 6 of the trunk edge 3.

When each relationship is expressed by an expression,
M2> R1 (H3-T1) ≈H2 H3 ≧ H1.

<Action of exterior panel body edge and fastener>
As shown in FIG. 6, the exterior panel 2 provided on the outer wall body 1 of the building is assembled horizontally in order from the bottom to the top of the outer wall body 1 through the fasteners 4 attached to the trunk edge 3. Attached.

  More specifically, as described above, the fastener 4 is fitted to the body edge 3 at an arbitrary position, the fastener 4 is slid down, and the attachment piece 21 of the fastener 4 is attached to the exterior panel 2. Cover the piece 27. And the to-be-attached piece 27 and the attachment piece 21 are adhere | attached when the fixing tools 31, such as a screw, screw in the perforation hole 31a of the bottom face 10. FIG.

  Further, when the next exterior panel 2 is overlaid from above, the convex male fruit 26 at the upper end 25 of the lower exterior panel 2 is placed over the concave female fruit 29 at the lower end 28 of the upper stage, and fixed. The attached piece 27 and the attaching piece 21 are fixed by the tool 31.

  At this time, the mounting piece 21 is provided with the countersink portion 22, so that the head of the fixing tool 31 does not protrude from the countersink portion 22, and the fastener 4 is attached to the back side of the lower end portion 28 of the next exterior panel 2. Since the notch 30 for accommodating the piece 21 is formed, the upper and lower exterior panels 2 can be easily stacked.

  In addition, when the fixing tool 31 such as a screw is screwed and fixed to the exterior panel 2, there is also a so-called washer effect in which the tightening surface pressure is increased to increase the fixing effect.

  Further, as described above, the tip end portion of the attached piece 27 of the exterior panel 2 (metal siding) is protected by being folded by the thin coated metal plate layer of the metal siding. Is thicker than the other part of the attached piece 27, but the countersink portion 22 escapes from the thicker part and comes into contact with the attached piece 27 (other part). Therefore, it is possible to obtain the effect that the attached piece 27 can be securely fixed by the countersunk portion 22.

 As shown in FIGS. 7A and 7B, in order to attach the fastener 4 to the trunk edge 3, the ring spring 44 is pushed in the direction of the arrow to the vicinity of both side surfaces 11 of the fastener 4. At this time, the ring spring 44 becomes an elongated oval.

 When the fastener 4 is pushed directly into the trunk edge 3 in this state, the ring spring 44 instantaneously expands in diameter when the stopper 8 is passed over, and comes into contact with and engages with both side surfaces 11 of the trunk edge 3.

 Here, as described above, the side surface 11 of the flexible side surface portion 17 has a height H5 = 20 mm and is longer than the non-flexible side surface portion 16 by a length Y1 = 1 mm (H5−H3). The distal end portion 18 of the flexible side surface portion 17 comes into contact with the flank.

For this reason, since the flexible side surface portion 17 is bent inward in two stages, it can be easily elastically bent. Therefore, the ring spring 44 is always applied to the stopper 8 (flange 8b) of the trunk edge 3 by the reaction force. It can be pressed and locked stably.
As described above, since the gap between the front end portion 18 of the flexible side surface portion 17 and the bottom surface 5 of the trunk edge 3 does not occur due to the spring effect of the flexible side surface portion 17, no backlash occurs.

 At the same time, the ring spring 44 is always elastically abutted and locked to the side surface 6 of the trunk edge 3, so that even if the trunk edge 3 is deformed, the ring spring 44 can expand and follow. Does not come off the trunk edge 3.

  Since the flexible side surface portion 17 is provided at two places on the both side surfaces 11, it can slide stably. Since the fastener 4 can be held at an arbitrary position by the flexible side portion 17, the fastener 4 does not fall along the trunk edge 3 at the time of temporary fixing, so that work efficiency is improved.

  Furthermore, since the fastener 4 is slidable, the internal stress generated by the thermal expansion and contraction of the exterior panel 2 can be sequentially released, so that the deformation of the exterior panel 2 and the breakage of the mounting portion do not occur.

<Relationship between exterior panel 2 and mounting piece 21>
As shown in FIGS. 8A and 8B, the attached piece 27 of the exterior panel 2 is integrally fixed between the sandwiching portion 21 a of the attachment piece 21 and the bottom surface 10 by a fixing tool 31 such as a screw. Therefore, even if a negative pressure is applied by the wind, since the rigidity of the bottom surface 10 is high, the sandwiched portion 21a (and the attached piece 27) is not rolled up and peeled off, so that the exterior panel 2 is not peeled off.

 In addition, a perforation hole 31a (smaller diameter than the screw) for the fixing tool 31 is provided on the bottom surface 10 of the fastener 4, and the fixing tool 31 is opposed to the perforation hole 31a in the sandwiching portion 21a of the mounting piece 21. Since the insertion hole 31b (a hole larger than the screw diameter) is provided, the fixing tool 31 fits only on the bottom surface 10, and the exterior panel 2 is sandwiched between the bottom surface 10 and the mounting piece 21. It can be fixed in a state that does not occur.

<Second Embodiment>
As shown in FIG. 9, the ring spring 44a is formed in a shape in which a pair of oval sides are recessed inward. At this time, the entire ring spring 44a is formed in a planar shape.
With this ring spring 44 a, the two-point contact with the trunk edge 3 is changed from the four-point contact, so that it can be more stably locked to the trunk edge 3.

  As mentioned above, although embodiment of this invention was described based on drawing, all said Example shows an example of this invention, and it cannot be overemphasized that this invention should not be limited to these.

  The ring spring may be formed by two independent ring springs. In this case, it is preferable that the opening 42 of the fastener 4 is provided with two independent openings 42 on each side surface.

 Instead of punching (shearing) the both side surfaces 11 of the fastener 4, the ring spring falling-off preventing claws 43 may be fixed to the both side surfaces 11 separately.

  The fixing tool 31 screwed into the hole 31a may be a bolt (with a screw).

It is a cross-sectional perspective view which shows the structure of the trunk edge and fastener for exterior panels provided in the outer wall main body of a building in the 1st Embodiment of this invention. It is an AA arrow line view of FIG. 1 in the 1st Embodiment of this invention. It is a top view of the fastener in the 1st Embodiment of the present invention. It is a BB arrow line view of Drawing 3 in a 1st embodiment of the present invention. It is CC arrow line view of FIG. 4 in the 1st Embodiment of this invention. It is a perspective view which shows the arrangement | positioning of the trunk edge and exterior fastener for exterior panels provided in the outer wall main body of a building in the 1st Embodiment of this invention. (A) in the 1st Embodiment of this invention is a top view which shows the state which inserts a fastener in a trunk edge, (b) is a DD arrow line view of Fig.7 (a). (a) is a perspective view of a fastener in the first embodiment of the present invention, and (b) shows a state in which the exterior panel 2 is sandwiched and fixed between the attachment piece 21 and the bottom surface 10 of the fastener 4. It is sectional drawing. It is a top view of the ring spring 44a in the 2nd Embodiment of this invention. It is sectional drawing which shows the structure of the trunk | drum edge for external panels and the fastener which are provided in the outer wall main body of the conventional building. It is a perspective view which shows the structure of the conventional fastener. It is the cross-sectional perspective view which shows the structure of the trunk | rim edge and fastener for exterior panels provided in the outer wall main body of a building which has already been proposed. It is a cross-sectional perspective view which shows the state of the latching protrusion 14 of the fastener when the trunk edge for the exterior panel provided in the outer wall main body of the building which has already been proposed has spread.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer wall main body 2 Exterior panel 3 Body edge 4 Fastener 3a Opening 5 Bottom surface 6 Side surface 7 Open end 8 Stopper 11 Side surface 42 Opening portion 44 Ring spring

Claims (7)

A structure of a trunk edge and a fastener for an exterior panel provided on an outer wall body of a building,
The trunk edge is a long material having a U-shaped cross section consisting of a bottom surface having an opening on the outdoor side and two side surfaces, and stoppers are erected at both opening ends toward the inside of the opening,
The fastener is a short material with a U-shaped cross section consisting of a bottom surface and two side surfaces, and is provided with an attachment piece that is fixed to the outside of the bottom surface by sandwiching an exterior panel and pressing it against the bottom surface of the fastener with a screw. The piece consists of a substantially rectangular sandwiching part that is the same width as the fastener and parallel to the fastener, and a protrusion that protrudes from the fastener and sticks to one side of the sandwiching part.
A hole for the screw is provided on the bottom surface of the fastener, and an insertion hole for the screw is provided in the clamping portion of the mounting piece so as to face the hole.
A ring spring projecting from an opening provided on both side surfaces of the fastener so as to fit the fastener at an arbitrary position in the longitudinal direction of the trunk edge; and When the metal fitting is inserted into the trunk edge, the ring spring is reduced in diameter to both side surfaces of the fastener, and when the fastener is inserted into the trunk edge, the diameter is increased to the side surface of the trunk edge and the stopper. A structure of a body edge and a fastener for an exterior panel, which is a ring spring to be locked.   The structure of a body edge and a fastener for an exterior panel according to claim 1, wherein a drop-off preventing claw for preventing the ring spring from falling off when the diameter of the ring spring is reduced and expanded is provided inside the fastener. The structure of the body edge and fastener for the exterior panel.   The structure of the trunk edge and the fastener for the exterior panel according to claim 1 or 2, wherein the ring spring protrudes from the openings on both side surfaces of the fastener every one place or every two places. The structure of the trunk edge and the clasp for the exterior panel characterized by being.   4. A structure of a body edge and a fastener for an exterior panel according to any one of claims 1 to 3, wherein an insertion hole for a screw of a sandwiching portion of a mounting piece provided on the fastener is provided. A structure of a body edge and a fastener for an exterior panel, characterized in that the periphery is a concave rib structure (concave when viewed from the mounting piece). A structure of a body edge and a fastener for an exterior panel provided on an outer wall main body of a building according to any one of claims 1 to 4,
Both sides of the fastener are divided into a plurality of slits to be divided into a non-flexible side portion and a flexible side portion, and the flexible side portion is inclined to the inner side having a U-shaped cross section from the non-flexible side portion and its tip. A structure of a body edge and a fastener for an exterior panel, wherein the portion is formed so as to protrude from the tip portion of the inflexible side surface portion.   6. A structure of a body edge and a fastener for an exterior panel according to any one of claims 1 to 5, wherein a distal end portion of the flexible side surface portion has a contact surface substantially parallel to a bottom surface of the fastener. The structure of the trunk | rim edge and fastener for exterior panels characterized by providing.   7. The structure of a shell edge and a fastener for an exterior panel according to claim 1, wherein the stopper is erected toward the inside of the opening at both opening ends of the shell edge. A structure of a body edge and a fastener for an exterior panel, characterized by comprising a lip standing upright at both opening ends and a flange protruding from the lip tip toward the bottom.

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