JP2016023526A

JP2016023526A - Joint material

Info

Publication number: JP2016023526A
Application number: JP2014150748A
Authority: JP
Inventors: 田原　治将; Harumasa Tawara; 治将田原; 宏彰鈴木; Hiroaki Suzuki
Original assignee: Tokai Kogyo Co Ltd
Current assignee: Tokai Kogyo Co Ltd
Priority date: 2014-07-24
Filing date: 2014-07-24
Publication date: 2016-02-08

Abstract

PROBLEM TO BE SOLVED: To provide a joint material capable of preventing the deterioration in an outward appearance by deformation of a lip part when the joint material is in an installed state.SOLUTION: A joint material is installed in a joint 5 between panels 1 for constituting an outer wall of a building. A joint body 11 for constituting a main body part of the joint material 10 comprises a head part 12, a leg part 13 inserted into the joint 5 by projecting from the back face side of this head part 12 and a lip part 16 for covering the opening side of the joint 5 by cooperating with the head part 12 by overhanging from at least one side among both ends in the width direction of the head part 12. A recessed part 14 is formed on the head part 12 side and a projection part 15 is formed on the lip part 16 side between the head part 12 and the lip part 16 among the surface side of the head part 12 and the lip part 16. A thin film 30 is provided over a surface of the head part 12, the recessed part 14, the projection part 15 and the lip part 16. When the lip part 16 is deformed to the opening side of the joint 5 with the recessed part 14 as a fulcrum by installing the joint material 10, the projection part 15 covers a trough part of the recessed part 14.SELECTED DRAWING: Figure 1

Description

この発明は、建物の外壁を構成するパネル間の目地（隙間）に取り付けられる目地材に関する。 The present invention relates to a joint material attached to a joint (gap) between panels constituting an outer wall of a building.

建物の外壁を構成する複数のパネルのうち、隣接するパネル間の目地（隙間）に取り付けられる目地材において、その主体部を構成する目地本体が、頭部と、この頭部の背面側から突出して目地に差し込まれる脚部と、頭部の幅方向両側のうち少なくとも片側から張り出して頭部と協働して目地の開口側を覆うリップ部とを備えた構造のものがある。また、目地材の頭部及びリップ部の表面側に薄膜が設けられたものが知られている（例えば、特許文献１参照）。 Of the multiple panels that make up the outer wall of the building, in the joint material that is attached to the joints (gap) between adjacent panels, the joint body that constitutes the main part projects from the head and the back side of the head. There is a structure including a leg portion inserted into the joint and a lip portion that projects from at least one side of both sides in the width direction of the head and covers the opening side of the joint in cooperation with the head. Moreover, what provided the thin film in the surface side of the head part of a joint material and a lip | rip part is known (for example, refer patent document 1).

特開平８−１３５０３４号公報JP-A-8-133504

前記したように、頭部及びリップ部の表面側に薄膜が設けられた目地材において、隣接するパネル間の目地に目地材が取り付けられた状態では、リップ部が目地の開口側へ変形する。このリップ部の変形によって薄膜に皺やひび割れが発生し、外観意匠（見栄え）が悪化することが想定される。 As described above, in the joint material in which the thin film is provided on the surface side of the head and the lip portion, the lip portion is deformed to the opening side of the joint when the joint material is attached to the joint between adjacent panels. It is assumed that wrinkles and cracks occur in the thin film due to the deformation of the lip portion, and the appearance design (appearance) deteriorates.

この発明の目的は、前記問題点に鑑み、目地材が取り付けられた状態にあるとき、リップ部の変形による見栄えの悪化を防止できる目地材を提供することである。 In view of the above-described problems, an object of the present invention is to provide a joint material that can prevent deterioration in appearance due to deformation of the lip portion when the joint material is attached.

前記課題を解決するために、請求項１の発明に係る目地材は、建物の外壁を構成するパネル間の目地に取り付けられる目地材であって、前記目地材の主体部を構成する目地本体は、頭部と、この頭部の背面側から突出して前記目地に差し込まれる脚部と、前記頭部の幅方向両側のうち少なくとも片側から張り出して前記頭部と協働して前記目地の開口側を覆うリップ部とを備え、前記頭部及び前記リップ部の表面側のうち、前記頭部と前記リップ部との間には、前記頭部側に凹部が、前記リップ部側に凸部がそれぞれ形成され、前記頭部、前記凹部、前記凸部、及び前記リップ部のそれぞれの表面にわたって薄膜が設けられ、前記目地に前記目地材が取り付けられて前記リップ部が前記凹部の谷部を支点として前記目地の開口側へ変形したとき、前記凸部が前記凹部の少なくとも谷部を覆うことを特徴とする。 In order to solve the above-mentioned problem, a joint material according to the invention of claim 1 is a joint material attached to joints between panels constituting an outer wall of a building, and the joint body constituting the main part of the joint material is A head, a leg projecting from the back side of the head and inserted into the joint, and an opening side of the joint in cooperation with the head projecting from at least one of both sides in the width direction of the head A lip portion that covers the head portion and the lip portion between the head portion and the lip portion, a concave portion on the head portion side and a convex portion on the lip portion side. Each is formed, and a thin film is provided over each surface of the head, the recess, the protrusion, and the lip, the joint material is attached to the joint, and the lip supports a valley of the recess. And deformed to the opening side of the joint , The convex portion is characterized in that the cover at least the valley portion of the recess.

請求項１の発明によれば、目地に目地材が取り付けられると、リップ部が凹部の谷部を支点として目地の開口側へ屈曲して変形する。このとき、凸部が凹部の少なくとも谷部を覆う。このため、仮に、凹部の谷部に設けられた薄膜に皺やひび割れが発生したとしても、その皺やひび割れが凸部によって覆い隠される。この結果、目地材の見栄えの悪化を防止することができる。 According to the first aspect of the present invention, when the joint material is attached to the joint, the lip portion bends and deforms toward the opening side of the joint using the valley portion of the recess as a fulcrum. At this time, the convex portion covers at least the valley portion of the concave portion. For this reason, even if wrinkles and cracks occur in the thin film provided in the valleys of the recesses, the wrinkles and cracks are covered by the protrusions. As a result, deterioration of the appearance of the joint material can be prevented.

請求項２の発明に係る目地材は、請求項１に記載の目地材であって、凸部と凹部は連続して形成されていることとしたものである。 A joint material according to a second aspect of the present invention is the joint material according to the first aspect, wherein the convex portion and the concave portion are formed continuously.

請求項２の発明によれば、請求項１又は２の発明の効果に加えて、凸部と凹部が連続することによって、凸部で凹部を良好に覆い隠すことができる。 According to the invention of claim 2, in addition to the effect of the invention of claim 1 or 2, the recesses can be satisfactorily covered by the protrusions by the protrusions and the recesses being continuous.

請求項３の発明に係る目地材は、請求項１又は２に記載の目地材であって、リップ部が自由状態にあるとき、凹部のうち頭部側の上端部（Ａ）と、前記凹部の谷部（Ｂ）とを結ぶ線（Ａ−Ｂ）と、前記凹部の谷部（Ｂ）と凸部の山部（Ｃ）とを結ぶ線（Ｂ−Ｃ）との交差する角度（θ）は、鋭角であることとしたものである。 The joint material according to the invention of claim 3 is the joint material according to claim 1 or 2, wherein when the lip portion is in a free state, the upper end portion (A) on the head side of the recess and the recess The angle (θ) between the line (A−B) connecting the trough (B) and the line (B−C) connecting the trough (B) of the recess and the crest (C) of the projection ) Is an acute angle.

請求項３の発明によると、請求項１又は２の発明の効果に加えて、目地に対する目地材の取付状態において、リップ部の目地の開口側への変形量が小さい場合においても、凸部によって凹部を良好に覆い隠すことができる。 According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, in the mounting state of the joint material to the joint, even when the deformation amount to the joint opening side of the lip portion is small, the convex portion The recess can be well covered.

請求項４の発明に係る目地材は、請求項１〜３のいずれか一項に記載の目地材であって、リップ部が自由状態にあるとき、凹部の谷部（Ｂ）と凸部の山部（Ｃ）との間の距離寸法（Ｌ１）は、前記凹部のうち頭部側の上端部（Ａ）と、前記凹部の谷部（Ｂ）との間の距離寸法（Ｌ２）よりも大きく設定されていることとしたものである。 The joint material according to the invention of claim 4 is the joint material according to any one of claims 1 to 3, wherein when the lip portion is in a free state, the valley (B) of the recess and the projection The distance dimension (L1) between the peaks (C) is larger than the distance dimension (L2) between the upper end (A) on the head side of the recess and the valley (B) of the recess. It is supposed to be set large.

請求項４の発明によると、請求項１〜３のいずれかの発明の効果に加えて、目地に対する目地材の取付状態において、凸部によって凹部全体を良好に覆い隠すことができる。 According to the invention of claim 4, in addition to the effect of any one of claims 1 to 3, the entire recessed portion can be satisfactorily covered by the protruding portion in the attached state of the joint material to the joint.

請求項５の発明に係る目地材は、請求項１〜４のいずれか一項に記載の目地材であって、リップ部は、自由状態において先端が脚部側に向かう方向へ傾斜していることとしたものである。 A joint material according to a fifth aspect of the present invention is the joint material according to any one of the first to fourth aspects, wherein the lip portion is inclined in a direction in which the tip is directed toward the leg portion in a free state. That's what it meant.

請求項５の発明によれば、請求項１〜４のいずれかの発明の効果に加えて、リップ部に外力が加わっていない自由状態においてリップ部の先端が脚部側に向かう方向へ傾斜しているため、目地材を目地に取り付けてリップ部が凹部の谷部を支点として目地の開口側へ屈曲して変形するとき、自由状態から取付状態までのリップ部の変形量が、リップ部の傾斜分だけ大きくなる。このため、目地の目地幅が広く、リップ部の目地の開口側への変形量が小さい場合においても、リップ部は自由状態から取付状態までの変形量を充分に確保して、凸部によって凹部を良好に覆い隠すことができる。 According to the invention of claim 5, in addition to the effect of any of the inventions of claims 1 to 4, the tip of the lip part is inclined in the direction toward the leg part in a free state where no external force is applied to the lip part. Therefore, when the joint material is attached to the joint and the lip portion is bent and deformed to the opening side of the joint with the valley portion of the recess as a fulcrum, the deformation amount of the lip portion from the free state to the attached state is Increases by the amount of inclination. Therefore, even when the joint width is wide and the deformation amount of the lip portion toward the opening side of the lip portion is small, the lip portion ensures a sufficient deformation amount from the free state to the mounting state, and the convex portion Can be covered well.

請求項６の発明に係る目地材は、請求項１〜５のいずれか一項に記載の目地材であって、頭部の幅方向両側に、凸部と凹部を介してリップ部がそれぞれ形成されている。 A joint material according to a sixth aspect of the invention is the joint material according to any one of the first to fifth aspects, wherein a lip portion is formed on each side in the width direction of the head via a convex portion and a concave portion. Has been.

請求項６の発明によれば、請求項１〜５のいずれかの発明の効果に加えて、頭部の幅方向両側にリップ部がそれぞれ形成されるため、目地の目地幅寸法のばらつきが大きい場合においても、両リップ部がそれぞれ変形することで良好に対処することができる。また、両リップがそれぞれ変形したときに、凹部の谷部に設けられた薄膜に皺やひび割れが発生したとしても凸部で皺やひび割れを隠すことができ、目地材の見栄えの悪化を防止できる。 According to the invention of claim 6, in addition to the effects of any one of the inventions of claims 1 to 5, since the lip portions are formed on both sides in the width direction of the head, the joint width dimension varies greatly. Even in this case, it is possible to cope with the problem by deforming both lip portions. In addition, when both lips are deformed, even if wrinkles and cracks occur in the thin film provided in the valleys of the recesses, the protrusions can hide the wrinkles and cracks and prevent deterioration of the appearance of the joint material. .

請求項７の発明に係る目地材は、請求項１〜６のいずれか一項に記載した目地材であって、薄膜は、塗装による塗膜であることとしたものである。 A joint material according to a seventh aspect of the present invention is the joint material according to any one of the first to sixth aspects, wherein the thin film is a coating film by painting.

請求項７の発明によると、請求項１〜６のいずれかの発明の効果に加えて、目地材の頭部、凹部、凸部及びリップ部を覆う薄膜を塗装による塗膜で形成することで、建物の外壁を構成するパネルが塗装されている場合の外観と同等の外観を目地材に容易に付与できる。また、リップが変形したとき、凹部に設けられた薄膜（塗膜）に皺やひび割れが発生したとしても、凸部で皺やひび割れを隠すことができ、目地材の見栄えの悪化を防止できる。 According to the invention of claim 7, in addition to the effect of the invention of any of claims 1 to 6, by forming a thin film covering the head portion, the concave portion, the convex portion and the lip portion of the joint material with a paint film by painting. The joint material can easily have an appearance equivalent to that when the panel constituting the outer wall of the building is painted. In addition, when the lip is deformed, even if wrinkles or cracks occur in the thin film (coating film) provided in the concave portion, the wrinkles and cracks can be hidden by the convex portion, and deterioration of the appearance of the joint material can be prevented.

この発明の実施例１に係る目地材を示す横断面である。It is a cross section which shows the joint material which concerns on Example 1 of this invention. 頭部、凹部、凸部、及びリップ部を拡大して示す横断面である。It is a cross section which expands and shows a head, a recessed part, a convex part, and a lip | rip part. 建物の外壁を構成するパネル間の目地の目地幅にばらつきがあり、目地幅が基準値よりも小さい目地に目地材を取り付けた状態を示す横断面図である。It is a cross-sectional view showing a state in which joint joints are attached to joints having joint joint widths that are smaller than a reference value, with joint joints having different joint joint widths. 目地幅が基準値に近い目地に目地材を取り付けた状態を示す横断面図である。It is a cross-sectional view showing a state in which a joint material is attached to a joint whose joint width is close to a reference value. 目地幅が基準値よりも大きい目地に目地材を取り付けた状態を示す横断面図である。It is a cross-sectional view which shows the state which attached the joint material to the joint whose joint width is larger than a reference value.

この発明を実施するための形態について実施例にしたがって説明する。 A mode for carrying out the present invention will be described in accordance with an embodiment.

この発明の実施例１に係る目地材を図面にしたがって説明する。図１〜図３に示すように、目地材１０は、建物の外壁を構成する複数のパネルのうち、隣接する両パネル１のパネル端面２間の目地（隙間）５に取り付けられて目地５を覆う。なお、両パネル１のパネル端面２の目地５の開口側に位置する部分には、開口端に向けてしだいに開口幅が広くなるように面取り部４が形成されている。 A joint material according to Embodiment 1 of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the joint material 10 is attached to the joint (gap) 5 between the panel end faces 2 of the adjacent panels 1 among the plurality of panels constituting the outer wall of the building. cover. Note that a chamfered portion 4 is formed in a portion of the panel end surfaces 2 of both panels 1 located on the opening side of the joint 5 so that the opening width gradually increases toward the opening end.

図１に示すように、目地材１０は、目地本体１１と、金属製の芯金２０と、薄膜３０とを備えて構成されている。目地本体１１は、目地材１０の主体部を構成するものであり、頭部１２と、この頭部１２の背面の幅方向中央部から突出して目地５に差し込まれる脚部１３と、頭部１２の幅方向両側のうち少なくとも片側（この実施例では両側）から張り出して頭部１２と協働して目地５の開口側を覆う両リップ部１６とを備えている。また、頭部１２及び両リップ部１６の表面側のうち、頭部１２と両リップ部１６との間には、頭部１２側に凹部１４が、両リップ部１６側に凸部１５がそれぞれ連続して形成されている。さらに、両リップ部１６は、自由状態において先端が脚部１３側に向かう方向へ傾斜している。 As shown in FIG. 1, the joint material 10 includes a joint body 11, a metal core 20, and a thin film 30. The joint body 11 constitutes a main part of the joint material 10, and includes a head part 12, a leg part 13 that protrudes from a center part in the width direction of the back surface of the head part 12 and is inserted into the joint part 5, and the head part 12. And both lip portions 16 that project from at least one side (both sides in this embodiment) of the width direction and cover the opening side of the joint 5 in cooperation with the head 12. Further, of the surface sides of the head 12 and both lip portions 16, between the head 12 and both lip portions 16, there are a recess 14 on the head 12 side and a protrusion 15 on both lip portions 16 side. It is formed continuously. Furthermore, both the lip parts 16 are inclined in a direction in which the tip ends toward the leg part 13 in a free state.

また、この実施例１において、脚部１３の両側面の先端部と中間部には、第１の係止リップ部１７と第２の係止リップ部１８とがそれぞれ突出しており、これら第１の係止リップ部１７と第２の係止リップ部１８は、目地５の幅寸法よりも大きく張り出している。そして、脚部１３が目地５に差し込まれたとき、第１の係止リップ部１７と第２の係止リップ部１８は、両パネル１のパネル端面２に密接し、弾性変形して撓む。 Further, in the first embodiment, the first locking lip portion 17 and the second locking lip portion 18 protrude from the front end portion and the intermediate portion on both side surfaces of the leg portion 13, respectively. The locking lip portion 17 and the second locking lip portion 18 protrude beyond the width of the joint 5. When the leg portion 13 is inserted into the joint 5, the first locking lip portion 17 and the second locking lip portion 18 are in close contact with the panel end surfaces 2 of both panels 1 and are elastically deformed and bent. .

すなわち、実施例１において、目地本体１１は、頭部１２と、両リップ部１６と、第１の係止リップ部１７と、第２の係止リップ部１８とを一体に備え、弾性を有するポリマー材料の押出成形によって長尺に一体成形されている。また、目地本体１１のポリマー材料としては、例えば、熱可塑性エラストマー（スチレン系エラストマー、オレフィン系エラストマー等）、塩化ビニル、ＥＰＤＭ等がある。また、目地本体１１の硬度は、ＪＩＳＫ６２５３によるデュロメータタイプＡにおいて、Ａ６０以上８０以下が好ましく、Ａ７０がさらに好ましい。 That is, in the first embodiment, the joint body 11 is integrally provided with the head 12, both lip portions 16, the first locking lip portion 17, and the second locking lip portion 18, and has elasticity. It is integrally formed in a long shape by extrusion molding of a polymer material. Examples of the polymer material for the joint body 11 include thermoplastic elastomers (styrene elastomers, olefin elastomers, etc.), vinyl chloride, EPDM, and the like. The hardness of the joint body 11 is preferably A60 or more and 80 or less, and more preferably A70 in the durometer type A according to JISK6253.

芯金２０は、金属板のロール加工等によって形成され、頭部補強部２１と脚部補強部２２とを一体に有して横断面Ｔ字状をなしている。そして、芯金２０は、目地本体１１の押出成形において、頭部１２と脚部１３にわたって内設されている。そして、頭部１２は頭部補強部２１によって補強され、脚部１３は脚部補強部２２によって補強されている。 The cored bar 20 is formed by rolling a metal plate or the like, and has a head reinforcing part 21 and a leg reinforcing part 22 integrally and has a T-shaped cross section. The core metal 20 is provided over the head 12 and the legs 13 in the extrusion molding of the joint body 11. The head 12 is reinforced by a head reinforcement 21, and the leg 13 is reinforced by a leg reinforcement 22.

薄膜３０は、例えば、スプレー塗装による塗膜で形成され、膜厚が１．５〜６μｍで、頭部１２、凹部１４、凸部１５、及び両リップ部１６のそれぞれの表面に薄膜状をなして設けられている。 The thin film 30 is formed of, for example, a coating film by spray coating, has a film thickness of 1.5 to 6 μm, and has a thin film shape on the surface of the head 12, the concave portion 14, the convex portion 15, and both lip portions 16. Is provided.

また、目地５に目地材１０が取り付けられ、リップ部１６が凹部１４の谷部Ｂを支点として開口側へ変形したとき、凸部１５が凹部１４の少なくとも谷部Ｂを覆うようになっている。 Further, when the joint material 10 is attached to the joint 5 and the lip portion 16 is deformed to the opening side with the valley portion B of the concave portion 14 as a fulcrum, the convex portion 15 covers at least the valley portion B of the concave portion 14. .

また、この実施例１において、図２に示すように、リップ部１６が自由状態にあるとき、凹部１４の頭部１２側の上端部Ａと、凹部１４の谷部Ｂとを結ぶ線Ａ−Ｂと、凹部１４の谷部Ｂと凸部１５の山部Ｃとを結ぶ線Ｂ−Ｃとの交差する角度θは鋭角に設定されている。 In Example 1, as shown in FIG. 2, when the lip portion 16 is in a free state, the line A− connecting the upper end A on the head 12 side of the recess 14 and the valley B of the recess 14. An angle θ at which B intersects a line BC connecting the valley B of the concave portion 14 and the peak C of the convex portion 15 is set to an acute angle.

また、この実施例１において、図２に示すように、リップ部１６が自由状態にあるとき、凹部１４の谷部Ｂと凸部１５の山部Ｃとの間の距離寸法Ｌ１は、凹部１４の頭部１２側の上端部Ａと、凹部１４の谷部Ｂとの間の距離寸法Ｌ２よりも大きく設定されている。 Further, in Example 1, as shown in FIG. 2, when the lip portion 16 is in a free state, the distance dimension L1 between the valley portion B of the recessed portion 14 and the crest portion C of the protruding portion 15 is set to the recessed portion 14. The distance dimension L2 between the upper end A on the head 12 side and the valley B of the recess 14 is set to be larger.

この実施例１に係る目地材は上述したように構成される。したがって、両パネル１のパネル端面２間の目地５に目地材１０を取り付ける場合、目地５の開口側から目地本体１１の脚部１３が挿入される。この際、脚部１３の第１の係止リップ部１７と第２の係止リップ部１８とが両パネル１のパネル端面２に密接し、弾性変形して撓む。さらに、頭部１２の両側の両リップ部１６は、凹部１４の谷部Ｂを支点として目地５の奥側から開口側へ屈曲して変形する。このとき、凸部１５が凹部１４の少なくとも谷部Ｂを覆う。このため、仮に、凹部１４の谷部Ｂに設けられた薄膜３０に皺やひび割れが発生したとしても、その皺やひび割れが凸部１５によって覆い隠される。この結果、目地材１０の意匠部（頭部１２、凹部１４、凸部１５、及びリップ部１６の目視可能な表面部分）の見栄えの悪化を防止することができる。 The joint material according to the first embodiment is configured as described above. Therefore, when the joint material 10 is attached to the joint 5 between the panel end faces 2 of both panels 1, the legs 13 of the joint body 11 are inserted from the opening side of the joint 5. At this time, the first locking lip portion 17 and the second locking lip portion 18 of the leg portion 13 are in close contact with the panel end surfaces 2 of both panels 1 and are elastically deformed and bent. Furthermore, both lip portions 16 on both sides of the head 12 are bent and deformed from the back side of the joint 5 to the opening side with the valley portion B of the concave portion 14 as a fulcrum. At this time, the convex portion 15 covers at least the valley portion B of the concave portion 14. For this reason, even if wrinkles and cracks occur in the thin film 30 provided in the valley B of the concave portion 14, the wrinkles and cracks are covered by the convex portion 15. As a result, it is possible to prevent the appearance of the design portion of the joint material 10 (the head portion 12, the concave portion 14, the convex portion 15, and the visible surface portion of the lip portion 16) from deteriorating.

また、この実施例１において、頭部１２の幅方向両側に、両リップ部１６がそれぞれ形成されている。このため、目地５の目地幅寸法のばらつき、例えば、図３に示すように、目地幅寸法Ｗ１が基準値よりも小さい場合や、図４に示すように、目地幅寸法Ｗ２が基準値に近い場合や、図５に示すように、目地幅寸法Ｗ３が基準値よりも大きい場合のいずれの場合においても、両リップ部１６がそれぞれ変形することで良好に対処して目地５を隙間なく覆うことができる。また、頭部１２と両リップ部１６との間に凹部１４と凸部１５が設けられるため、両リップ部１６が変形して薄膜３０に皺やひび割れが発生しても、凸部１５で皺やひび割れを隠すことができ、目地材１０の見栄えの悪化を防止することができる。 In the first embodiment, both lip portions 16 are formed on both sides of the head 12 in the width direction. For this reason, variation in the joint width dimension of the joint 5, for example, as shown in FIG. 3, when the joint width dimension W1 is smaller than the reference value, or as shown in FIG. 4, the joint width dimension W2 is close to the reference value. In either case or as shown in FIG. 5, the joint width dimension W3 is larger than the reference value, and both the lip portions 16 are deformed to cope with each other and cover the joint 5 without any gap. Can do. Further, since the concave portion 14 and the convex portion 15 are provided between the head portion 12 and both the lip portions 16, even if both the lip portions 16 are deformed to cause wrinkles or cracks in the thin film 30, The cracks can be hidden and deterioration of the appearance of the joint material 10 can be prevented.

また、この実施例１において、凹部１４と凸部１５が連続することによって、凸部１５で凹部１４を良好に覆い隠すことができる。 Moreover, in Example 1, the concave portion 14 and the convex portion 15 are continuous, so that the concave portion 14 can be well covered with the convex portion 15.

また、この実施例１では、図１に示すような両リップ部１６に外力が加わらない自由状態において、両リップ部１６の先端が脚部１３側に向かう方向へ傾斜している。このため、目地材１０を目地５に取り付けて両リップ部１６が凹部１４の谷部Ｂを支点として目地の奥側から開口側へ屈曲して変形するとき、自由状態から取付状態までの両リップ部１６の変形量が、リップ部１６の傾斜分だけ大きくなる。このため、目地５の目地幅寸法Ｗ３が基準値よりも広く、両リップ部１６の開口側への変形量が小さい場合においても、両リップ部１６は、自由状態から取付状態までの変形量を充分に確保することができる。この結果、凸部１５によって凹部１４を良好に覆い隠すことができる。したがって、図３〜図５に示すように、目地幅寸法が違うＷ１〜Ｗ３のどの目地に目地材１０が取り付けられても、凸部１５で凹部１４を良好に覆い隠すことができる。 Further, in the first embodiment, in a free state where no external force is applied to both lip portions 16 as shown in FIG. 1, the tips of both lip portions 16 are inclined in the direction toward the leg portions 13. For this reason, when the joint material 10 is attached to the joint 5 and both lip portions 16 are bent and deformed from the back side of the joint to the opening side with the valley B of the recess 14 as a fulcrum, both lips from the free state to the attached state The amount of deformation of the portion 16 increases by the amount of inclination of the lip portion 16. For this reason, even when the joint width dimension W3 of the joint 5 is wider than the reference value and the deformation amount to the opening side of both the lip portions 16 is small, the both lip portions 16 have the deformation amount from the free state to the attached state. It can be secured sufficiently. As a result, the concave portion 14 can be satisfactorily covered by the convex portion 15. Therefore, as shown in FIGS. 3 to 5, even if the joint material 10 is attached to any joint of W1 to W3 having different joint width dimensions, the concave portion 14 can be satisfactorily covered with the convex portion 15.

また、この実施例１において、図２に示すように、リップ部１６が自由状態にあるとき、凹部１４の頭部１２側の上端部Ａと、凹部１４の谷部Ｂとを結ぶ線Ａ−Ｂと、凹部１４の谷部Ｂと凸部１５の山部Ｃとを結ぶ線Ｂ−Ｃとの交差する角度θは鋭角に設定されている。このため、目地材１０の取付状態において、リップ部１６の開口側への変形量が小さい場合においても、θが０°に近くなり易く、凸部１５によって凹部１４を良好に覆い隠すことができる。 In Example 1, as shown in FIG. 2, when the lip portion 16 is in a free state, the line A− connecting the upper end A on the head 12 side of the recess 14 and the valley B of the recess 14. An angle θ at which B intersects a line BC connecting the valley B of the concave portion 14 and the peak C of the convex portion 15 is set to an acute angle. For this reason, even when the amount of deformation of the lip portion 16 toward the opening side is small in the mounting state of the joint material 10, θ tends to be close to 0 °, and the concave portion 14 can be satisfactorily covered by the convex portion 15. .

また、この実施例１において、図２に示すように、リップ部１６が自由状態にあるとき、凹部１４の谷部Ｂと凸部１５の山部Ｃとの間の距離寸法Ｌ１は、凹部１４の頭部１２側の上端部Ａと、凹部１４の谷部Ｂとの間の距離寸法Ｌ２よりも大きく設定されている。このため、目地材１０の取付状態において、Ｂ−Ｃ間の部分でＡ−Ｂ間の部分を覆い、凸部１５によって凹部１４全体を良好に覆い隠すことができる。また、この実施例１において、目地材１０の意匠部（頭部１２、凹部１４、凸部１５及びリップ部１６）に外壁を構成するパネル１の外観に合わせて、スプレー塗装が施されて薄膜３０としての塗膜が形成さている。この場合であっても、リップ部１６が変形したとき、凹部１４に設けられた塗膜（薄膜３０）に皺やひび割れが発生したとしても、凸部１５で皺やひび割れを隠すことができ、目地材１０の見栄えの悪化を防止できる。 Further, in Example 1, as shown in FIG. 2, when the lip portion 16 is in a free state, the distance dimension L1 between the valley portion B of the recessed portion 14 and the crest portion C of the protruding portion 15 is set to the recessed portion 14. The distance dimension L2 between the upper end A on the head 12 side and the valley B of the recess 14 is set to be larger. For this reason, in the attachment state of the joint material 10, the part between AB can be covered by the part between B-C, and the whole recessed part 14 can be favorably covered by the convex part 15. FIG. Moreover, in this Example 1, according to the external appearance of the panel 1 which comprises an outer wall in the design part (head part 12, the recessed part 14, the convex part 15, and the lip | rip part 16) of the joint material 10, spray coating is given and it is a thin film. A coating film as 30 is formed. Even in this case, even when wrinkles or cracks occur in the coating film (thin film 30) provided in the concave portion 14 when the lip portion 16 is deformed, the wrinkles and cracks can be hidden by the convex portion 15, The deterioration of the appearance of the joint material 10 can be prevented.

なお、この発明は前記実施例１に限定するものではなく、この発明の要旨を逸脱しない範囲内において、種々の形態で実施することができる。例えば、前記実施例１においては、薄膜３０がスプレー塗装による塗膜で形成されている場合を例示したが、塗膜は、筆、刷毛、ブラシ等による塗装で形成されていてもよく、印刷によって形成されてもよい。また、薄膜３０がフィルムによって形成されている場合においてもこの発明を実施することができる。また、前記実施例１においては、頭部１２の幅方向両側に両リップ部１６がそれぞれ形成される場合を例示したが、頭部１２の幅方向の片側にのみリップ部１６が形成されている場合においてもこの発明を実施することができる。また、芯金２０の横断面がＴ字状に形成されている場合を例示したが、他の形状でもよい。さらに、芯金２０は必ずしも配設しなくてもよく、必要に応じて配設すればよい。さらに、芯金２０に替えて樹脂製の芯材等でもよい。また、前記実施例１においては、目地材１０が自由状態にあるときリップ部１６の先端が脚部１３側に向かう方向へ傾斜している場合を例示したが、リップ部１６の先端が脚部１３側に向かう方向へ傾斜していなくてもよく、リップ部１６の先端が頭部１２側に向かう方向へ傾斜していてもよく、リップが頭部から水平に突出していてもよい。また、凹部１４と凸部１５が必ずしも連続しなくてもよく、凸部１５で凹部１４を隠せる範囲であれば離れていてもよい。また目地本体１１の形状は実施例１に限定されず、他の形状でもよい。 In addition, this invention is not limited to the said Example 1, In the range which does not deviate from the summary of this invention, it can implement with a various form. For example, in the first embodiment, the case where the thin film 30 is formed by a paint film by spray coating is exemplified, but the coating film may be formed by painting by a brush, a brush, a brush, or the like, and by printing. It may be formed. Moreover, this invention can be implemented also when the thin film 30 is formed with the film. Moreover, in the said Example 1, although the case where both the lip | rip parts 16 were each formed in the width direction both sides of the head 12 was illustrated, the lip | rip part 16 is formed only in the one side of the width direction of the head 12. Even in some cases, the present invention can be implemented. Moreover, although the case where the cross section of the cored bar 20 is formed in a T-shape is illustrated, other shapes may be used. Furthermore, the cored bar 20 does not necessarily have to be disposed, and may be disposed as necessary. Furthermore, instead of the core metal 20, a resin core material or the like may be used. Moreover, in the said Example 1, when the joint material 10 was in the free state, the case where the front-end | tip of the lip | rip part 16 inclined in the direction which goes to the leg part 13 side was illustrated, but the front-end | tip of the lip | rip part 16 is leg part. The tip of the lip portion 16 may not be inclined in the direction toward the 13th side, the tip of the lip portion 16 may be inclined in the direction toward the head 12 side, and the lip may protrude horizontally from the head. Moreover, the recessed part 14 and the convex part 15 do not necessarily need to be continuous, and may be separated as long as the concave part 14 can be hidden by the convex part 15. Further, the shape of the joint body 11 is not limited to the first embodiment, and may be other shapes.

１パネル
５目地
１０目地材
１１目地本体
１２頭部
１３脚部
１４凹部
１５凸部
３０薄膜 DESCRIPTION OF SYMBOLS 1 Panel 5 Joint 10 Joint material 11 Joint main body 12 Head 13 Leg part 14 Concave part 15 Convex part 30 Thin film

Claims

A joint material that is attached to joints between panels constituting the outer wall of the building,
The joint body constituting the main part of the joint material includes a head, a leg projecting from the back side of the head and inserted into the joint, and protruding from at least one side of both sides in the width direction of the head. A lip portion that covers the opening side of the joint in cooperation with the head,
Of the head side and the surface side of the lip part, between the head part and the lip part, a concave part is formed on the head part side, and a convex part is formed on the lip part side, respectively.
A thin film is provided over each surface of the head, the recess, the protrusion, and the lip,
The joint is attached to the joint, and when the lip portion is deformed toward the opening side of the joint using the valley portion of the recess as a fulcrum, the protrusion covers at least the valley portion of the recess. Wood.

The joint material according to claim 1,
A joint material in which a convex part and a concave part are formed continuously.

The joint material according to claim 1 or 2,
When the lip portion is in a free state, the line (AB) connecting the upper end portion (A) on the head side of the recess and the valley portion (B) of the recess, and the valley portion (B) of the recess A joint material characterized in that an angle (θ) intersecting a line (BC) connecting the ridge and the peak (C) of the convex portion is an acute angle.

The joint material according to any one of claims 1 to 3,
When the lip portion is in a free state, the distance dimension (L1) between the valley portion (B) of the recess and the peak portion (C) of the protrusion is the upper end portion (A) on the head side of the recess. The joint material is set to be larger than the distance dimension (L2) between the valley (B) of the recess.

The joint material according to any one of claims 1 to 4,
The joint material characterized in that the lip portion is inclined in a direction in which the tip is directed toward the leg portion in a free state.

The joint material according to any one of claims 1 to 5,
A joint material in which lip portions are respectively formed on both sides in the width direction of the head portion via a convex portion and a concave portion.

The joint material according to any one of claims 1 to 6,
A joint material characterized in that the thin film is a paint film.