JP2020186582A - Joint member - Google Patents

Abstract

To obtain a joint member which can close and cover a joint regardless of the relative arrangement and plate thickness of the building surface materials on both sides which constitute the joint.SOLUTION: A joint member 10 is inserted into a joint 18 formed between adjacent building surface materials 14 and 16, and includes: an elastically deformable insertion portion 20 which has a hollow closed cross-sectional structure extending along the longitudinal direction of the joint 18; and an elastically deformable decorative portion 22 which is formed on a base end portion 20A of the insertion portion 20, is bridged over design surfaces 14B and 16B of the building surface materials 14 and 16 in a fitting state to the joint 18, and covers the joint 18 along the longitudinal direction. The insertion portion 20 is arranged in natural state so that a width dimension W1 in the joint width direction is set to be larger than a width dimension W2 of the joint 18. And the decorative portion 22 is inclined in natural state toward the insertion portion 20 side as going toward both ends in the joint width direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to joint members.

Patent Document 1 below discloses a long building parting material that fits into a gap between a main surface material and a side material forming an inside corner of a building and covers the gap. The parting material disclosed in Patent Document 1 is a long plate-shaped base plate covering a gap and a standing wall plate vertically laid at a position deviated from the center in the lateral direction of the base plate. And a plurality of tongue pieces protruding from both sides of the standing wall plate. The standing wall portion of the parting material is inserted into the gap between the main surface material and the side surface material, and the tongue piece is elastically deformed to press the inner surface of the gap, thereby closing the opening of the gap. ..

Japanese Unexamined Patent Publication No. 2011-58221

However, in the parting material disclosed in Patent Document 1, since the base plate body covering the gap is formed in a flat plate shape, it cannot be used, for example, in the protruding corner of a building. Further, the plurality of tongue pieces suspended in the gap are arranged apart from each other in the depth direction so as not to interfere with each other, and are not configured as continuous members over the entire length in the depth direction. Therefore, for example, when the plate thickness of the face material forming the gap is thin, some of the plurality of tongue pieces do not come into contact with the inner surface of the gap, which is sufficient to hold the parting material. It is not possible to obtain a strong pressing force (reaction force).

In consideration of the above facts, an object of the present invention is to obtain a joint member capable of closing and covering the joint regardless of the relative arrangement of the building face materials on both sides constituting the joint and the plate thickness.

The joint member according to the first aspect is elastically deformable as a hollow closed cross-sectional structure that is inserted into a joint formed between adjacent building face materials and extends along the longitudinal direction of the joint. Elasticity formed at the insertion portion and the base end portion of the insertion portion, and in the state of being attached to the joint, stretched over the design surface of the adjacent building face material and covers the joint along the longitudinal direction. The insertion portion is provided with a deformable decorative portion, and the width dimension in the joint width direction is set to be larger than the joint width dimension in the natural state, and the decorative portion is set to have a joint width in the natural state. It is inclined toward the insertion portion toward both ends in the direction.

According to the joint member according to the first aspect, the elastically deformable insertion portion having a hollow closed cross-section structure is inserted into the joint formed between the adjacent building face materials and is inserted in the longitudinal direction of the joint. It is extended along. Further, an elastically deformable decorative portion formed at the base end portion of the insertion portion is bridged over the design surface of the adjacent building surface material and covers the joint along the longitudinal direction. Here, since the width dimension of the insertion portion in the joint width direction in the natural state is set to be larger than the joint width dimension, the insertion portion is elastically deformed inward in the joint width direction when inserted into the joint. Will be done. For this reason, an elastic (restoring) force that tends to return to the shape in the natural state is generated in the insertion portion, so that at least one of the side surface and the corner portion of the building face material on both sides constituting the joint is pressed, and the insertion portion is pressed. It is fitted to the joint. Since the insertion portion has a hollow closed cross-section structure and is configured as a continuous member over the entire length in the depth direction, the insertion portion fits into the joint regardless of the arrangement of the building face materials on both sides of the joint and the plate thickness. Be worn.

Further, in the natural state, the decorative portion is inclined toward the insertion portion toward both ends in the joint width direction. Therefore, when the joint member is inserted into the joint, both ends in the joint width direction of the decorative portion are in the insertion direction. It is elastically deformed to the opposite side. For this reason, an elastic (restoring) force that tries to return to the shape in the natural state acts on the decorative part in the insertion direction, and both ends of the decorative part in the joint width direction press the design surface of the building surface material to build. Adheres to the face material. As a result, the joint can be closed and covered regardless of the relative arrangement of the building facing materials on both sides constituting the joint.

The joint member according to the second aspect is the joint member according to the first aspect, and the insertion portion includes a buckling prevention portion that connects one end and the other end in the insertion direction in a closed cross section.

According to the joint member according to the second aspect, since the buckling prevention portion connecting one end and the other end in the insertion direction is provided in the closed cross section of the insertion portion, the joint member is inserted when the joint member is inserted into the joint. It suppresses or prevents the closed cross section from being crushed in the opposite direction, and improves workability when inserting the joint member into the joint.

The joint member according to the third aspect is the joint member according to the second aspect, in which the insertion portion has an elastically deformable repulsive portion that connects one end in the joint width direction and the buckling prevention portion in a closed cross section. Be prepared.

According to the joint member according to the third aspect, the elastically deformable repulsive portion connecting one end in the joint width direction and the buckling prevention portion in the closed cross section of the insertion portion is formed when the insertion portion is inserted into the joint. It is elastically deformed toward the inside in the joint width direction. For this reason, an elastic (restoring) force is generated so that the repulsive portion returns to the natural state and presses the face material constituting the joint, so that the insertion portion is more firmly fitted to the joint.

The joint member according to the fourth aspect is the joint member according to the third aspect, in which the repulsive portion is naturally inclined toward both ends in the joint width direction toward the decorative portion.

According to the joint member according to the fourth aspect, since the repulsive portion in the natural state is inclined toward the decorative portion toward both ends in the joint width direction, when the insertion portion is inserted into the joint, the repulsive portion is forward in the insertion direction. An elastic (restoring) force that tries to return to the natural state acts on the repulsive portion that is elastically deformed sideways and inward in the width direction diagonally backward in the insertion direction. The reaction force that the insertion part receives from the building face material against this elastic force acts on the inside in the width direction of the insertion part and in the direction toward the insertion direction (diagonally forward), so that the joint member advances further into the joint. Will be done. As a result, workability when inserting the joint member into the joint is improved.

The joint member according to the fifth aspect is the joint member according to any one of the first to fourth aspects, and the decorative portion is a sheet-shaped heat-expanding member or a sheet-shaped heat-expanding member on the surface of the decorative portion on the insertion direction side. It is equipped with a foam member.

According to the joint member according to the fifth aspect, the heat-expanding member or the foaming member is provided on the surface of the decorative portion on the insertion direction side, that is, the surface on the side that abuts on the design surface of the building surface material. Therefore, when the heating expansion member is provided, it can be expanded in the event of a fire to prevent the spread of fire from the gap. Further, when the foam member is provided, at least one of airtightness, heat insulation and waterproofness can be improved.

As described above, the joint member according to the present invention has an excellent effect that the joint can be closed and covered regardless of the relative arrangement and plate thickness of the building face materials on both sides constituting the joint. Has.

(A) is a cross-sectional view of the joint member according to the present embodiment in a natural state, and (B) shows a state in which the joint member shown in (A) is applied to the joint of the flat joint portion of the building face material. It is a cross-sectional view which shows. (A) is a cross-sectional view showing a state in which the joint member shown in FIG. 1 (A) is applied to the joint at the inside corner of the building, and (B) is a cross-sectional view in which the joint member is different from that of (A). It is a cross-sectional view which shows the state applied to the joint of a corner part. FIG. 5 is a cross-sectional view showing a state in which the joint member shown in FIG. 1A is applied to the joint at the protruding corner of the building. The process of inserting the joint member according to the present embodiment into the joint of the flat joint of the building face material is shown. (A) is before insertion into the joint, (B) is in the middle of insertion, and (C) is when the insertion is completed. It is a cross-sectional view which shows the state of. It is a cross-sectional view corresponding to FIG. 1 (A) of the joint member which concerns on the modification of this embodiment.

Hereinafter, embodiments of joint members according to the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1A shows a cross-sectional view of the joint member 10 according to the present embodiment in a natural state. FIG. 1B shows a cross-sectional view of a part of the building 12 to which the joint member 10 is applied. As shown in these figures, the joint member 10 is a gap between the face material 14 and the face material 16 as "building face materials" adjacent to each other in the wall surface direction forming the flat joint portion 13 of the building 12. The insertion portion 20 of the hollow closed cross-section structure that is inserted into the joint 18 and extends along the longitudinal direction of the joint 18 and the joint 18 are arranged along the longitudinal direction of the joint 18 so as to cover the joint 18 from the design surface side. The cosmetic part 22 is included in the structure.

The joint member 10 is a long-shaped member integrally formed by, for example, extrusion molding of rubber such as EPDM or a resin material. That is, the cross-sectional shape shown in FIG. 1 (A) is uniformly extended. In the present embodiment, the joint member 10 is formed by two-color molding, and the insertion portion 20, the decorative portion 22, and the repulsion portion 28 described later are made of the same material that can be elastically deformed, and will be described later. The buckling prevention portion 26 is made of a material having a higher elastic modulus (a material that is less likely to be elastically deformed) than other portions. The joint member 10 may be extruded by multicolor molding of three or more colors, and the insertion portion 20, the decorative portion 22, and the repulsion portion 28 may be made of materials having different elastic moduli.

The insertion portion 20 is configured to include a pair of side surface portions 24. Each of the pair of side surface portions 24 has a substantially arcuate cross section, and is connected to each other on the tip end side (insertion direction P side into the joint 18) of the insertion portion 20. Therefore, the insertion portion 20 has a substantially elliptical cross section sharpened in the insertion direction P. Further, in the pair of side surface portions 24, the base end side (the side opposite to the insertion direction P into the joint 18) is connected to the central portion in the lateral direction (width direction) of the decorative portion 22. Further, the pair of side surface portions 24 are formed so as to be separated from each other at portions other than both ends in the insertion direction P and to maximize the distance from each other in the vicinity of the central portion in the insertion direction P. In other words, the cross-sectional shape of the insertion portion 20 is leaf-shaped, and the width increases from both ends in the insertion direction P toward the center.

The width dimension (width dimension at the position where the width is maximum) W1 (see FIG. 1 (A)) of the insertion portion 20 in the joint width direction in the natural state is the width dimension W2 of the joint 18 (see FIG. 1 (B)). Is set larger than. Therefore, in the state where the insertion portion 20 is inserted into the joint 18, the width dimension of the insertion portion 20 is the same as the width dimension W2 of the joint 18 as the “joint width dimension”, and the insertion portion 20 is the joint width. It is in a state of elastic deformation inward in the direction. Since the elastic (restoring) force F1 that tries to return to the shape (that is, the width dimension W1) in the natural state is generated on the pair of side surface portions 24 of the insertion portion 20, the side surface 14A of the face materials 14 and 16 forming the joint 18 16A is pressed, and the insertion portion 20 is fitted to the joint 18.

The decorative portion 22 is connected to the base end portion 20A of the insertion portion 20, is bridged between the design surface 14B of the face material 14 and the design surface 16B of the face material 16, and covers the joint 18 along the longitudinal direction. It is configured in. In other words, the total length W3 (width dimension when the decorative portion 22 is deformed substantially flat) in the width direction of the decorative portion 22 is set to be larger than the width dimension W2 of the joint 18, and the natural part of the decorative portion 22 is natural. The width dimension of the state is set to be larger than the width dimension W2 of the joint 18. Further, the decorative portion 22 includes a left side portion 22A and a right side portion 22B extending in opposite directions with the insertion portion 20 interposed therebetween. In the natural state before the joint member 10 is applied to the joint 18 of the building 12, the left side portion 22A and the right side portion 22B of the decorative portion 22 are on the insertion portion 20 side, that is, the insertion direction P side toward both ends in the joint width direction. They are inclined to each other and form an angle Q with each other (see FIG. 1 (A)). Further, the left side portion 22A and the right side portion 22B of the decorative portion 22 are configured to become thinner toward both ends in the lateral direction of the decorative portion 22.

As described above, the decorative portion 22 is made of a material that can be elastically deformed. Therefore, when it is applied to the joint 18 of the building 12 and the angle formed by the left side portion 22A and the right side portion 22B of the decorative portion 22 becomes larger than the angle Q in the natural state (see FIG. 1 (B)), the angle Q in the natural state The elastic (restoring) force F2 that tries to return to is applied, and the left side portion 22A and the right side portion 22B press the design surfaces 14B and 16B of the face materials 14 and 16, respectively, and come into close contact with the face materials 14 and 16.

Further, in the closed cross section of the insertion portion 20 of the joint member 10, a buckling prevention portion 26 that linearly connects one end and the other end of the insertion direction P is provided. That is, the buckling prevention portion 26 extends from the tip end side of the insertion portion 20 in which the pair of side surface portions 24 are connected to each other in the insertion direction P to the base end portion 20A of the insertion portion 20 connected to the decorative portion 22. Being present. As described above, the buckling prevention portion 26 is made of a material having a higher elastic modulus than the insertion portion 20, the decorative portion 22, and the repulsion portion 28. The buckling prevention portion 26 may be made of the same material as the other parts (insertion part 20, decorative part 22, and repulsion part 28), but is made of a material having a higher elastic modulus than the other parts. As a result, elastic deformation in the insertion direction P is more effectively suppressed and workability at the time of insertion is improved. Therefore, it is preferable to use a material having a higher elastic modulus than other portions.

Further, in the closed cross section of the insertion portion 20 of the joint member 10, an elastically deformable repulsion portion 28 that connects the pair of side surface portions 24 and the buckling prevention portion 26 is provided. Specifically, the repulsion portion 28 includes a left side portion 28A and a right side portion 28B extending from both side surfaces of the buckling prevention portion 26 to the pair of side surface portions 24, respectively. Further, the left side portion 28A and the right side portion 28B of the repulsion portion 28 are inclined toward the decorative portion 22 side, that is, the side opposite to the insertion direction P toward both ends of the insertion portion 20 in the joint width direction.

Although an example of applying the joint member 10 according to the present embodiment to the joint 18 of the flat joint portion 13 of the building 12 is shown (see FIG. 1 (B)), it may be applied to the joints of other places of the building 12. .. For example, as shown in FIG. 2A, the joint member 10 according to the present embodiment may be applied to the inside corner portion 30 of the building 12. The inside corner portion 30 is composed of a face material 32 and a face material 34 as "building face materials", and the side surfaces 32A of the face material 32 face each other so as to face the design surface 34A of the face material 34. They are located at orthogonal positions. A joint 36 is formed between the side surface 32A of the face material 32 and the design surface 34A of the face material 34. The width dimension W1 (see FIG. 1 (A)) in the joint width direction of the insertion portion 20 of the joint member 10 according to the present embodiment in the natural state is larger than the width dimension W4 of the joint 36 as the “joint width dimension”. It is set. As a result, an elastic (restoring) force F1 that tends to return to the shape in the natural state (that is, the width dimension W1) is generated on the pair of side surface portions 24 of the insertion portion 20, so that the side surface 32A of the face material 32 that forms the joint 36 And the design surface 34A of the face material 34 are pressed, and the insertion portion 20 is fitted to the joint 36.

Further, since the elastic (restoring) force F2 that tries to return to the angle Q (see FIG. 1 (A)) in the natural state acts on the decorative portion 22, the left side portion 22A and the right side portion 22B are the design surface 34A of the face material 34. And the design surface 32B of the face material 32 is pressed against the face materials 34 and 32, respectively.

Further, as shown in FIG. 2B, the joint member 10 according to the present embodiment may be applied to another inside corner portion 40 of the building 12. The inside corner 40 is arranged at a position where the face material 42 and the face material 44 as the "building face material" are orthogonal to each other, and the side surface 42A of the face material 42 and the side surface 44A of the face material 44 are joints. 46 is formed. In this configuration, the width of the joint 46 increases toward the front side in the insertion direction P. The width dimension W1 (see FIG. 1 (A)) of the insertion portion 20 of the joint member 10 according to the present embodiment in the natural state is the width dimension W5 (that is, the joint) on the design surface side of the joint 46 as the “joint width dimension”. It is set to be larger than the width dimension at the position where the width of 46 is the minimum). Further, the insertion portion 20 is formed so that the width dimension is maximized near the central portion in the insertion direction P, and when the insertion portion 20 is inserted into the joint 46, the decorative portion of the pair of side surface portions 24 The vicinity of the joint portion with 22 (that is, the vicinity of the base end portion 20A) is in a state of being elastically deformed inward in the width direction by the side surface 42A of the face material 42 and the side surface 44A of the face material 44. As a result, an elastic force F1 that tends to return to the shape in the natural state is generated on the pair of side surface portions 24 of the insertion portion 20, so that the side surfaces 42A and 44A of the face materials 42 and 44 forming the joint 46 are pressed and the insertion portion is inserted. 20 is fitted to the joint 46.

Further, since the elastic force F2 that tends to return to the angle Q (see FIG. 1 (A)) in the natural state acts on the decorative portion 22, the left side portion 22A and the right side portion 22B are the design surface 44B and the face material of the face material 44. The design surface 42B of 42 is pressed against the surface materials 44 and 42, respectively.

Further, as shown in FIG. 3, the joint member 10 according to the present embodiment may be applied to the projected corner portion 50 of the building 12. The protruding corner portion 50 is arranged at a position where the face material 52 and the face material 54 as the "building face material" are orthogonal to each other, and the side surface 52A of the face material 52 and the side surface 54A of the face material 54 are joints. 56 is formed. In this configuration, the width of the joint 56 becomes smaller toward the front side in the insertion direction P. The width dimension W1 (see FIG. 1 (A)) of the insertion portion 20 of the joint member 10 according to the present embodiment in the natural state is the width dimension W6 of the joint 56 (that is, the width of the joint 56) as the “joint width dimension”. It is set larger than the width dimension at the minimum position). As a result, an elastic force F1 that tends to return to the shape in the natural state (that is, the width dimension W1) is generated on the pair of side surface portions 24 of the insertion portion 20, so that the face material 52, at the position where the width of the joint 56 is minimized, The corner portions 52C and 54C of 54 are pressed, and the insertion portion 20 is fitted to the joint 56.

Further, in the state where the joint member 10 is fitted to the joint 56, the angle formed by the left side portion 22A and the right side portion 22B of the decorative portion 22 is larger than the angle Q (see FIG. 1 (A)) in the natural state. Is set to. Therefore, the elastic force F2 that tries to return to the natural state acts, and the left side portion 22A and the right side portion 22B press the design surface 54B of the face material 54 and the design surface 52B of the face material 52, respectively, to the face materials 54 and 52. In close contact.

<Action and effect>
Next, with reference to FIGS. 4A to 4C, the operation and effect of the present embodiment will be described through the construction procedure of attaching the joint member 10 according to the present embodiment to the flat joint portion 13.

First, as shown in FIG. 4A, the insertion portion 20 of the joint member 10 according to the present embodiment is inserted into the joint 18 formed between the two face members 14 and 16. At this time, the elastically deformable insertion portion 20 having a hollow closed cross section structure is compressionally deformed in the arrow R direction from both sides in the width direction from the outside to the inside so as to crush the closed cross section. As a result, the left side portion 28A and the right side portion 28B of the repulsion portion 28 are elastically deformed toward the insertion direction P and the width direction inward. At this time, the compression deformation of the insertion portion 20 may be performed by the operator's hand, or a construction tool (not shown) may be used. Since the cross-sectional shape of the tip of the insertion portion 20 is sharp toward the front side in the insertion direction P, it is possible to insert the insertion portion 20 into the joint 18 without compressing and deforming it. As a result, the width of the insertion portion 20 is narrowed, and the insertion into the joint 18 becomes easier. Further, by compressing and deforming the insertion portion 20, the repulsion portion 28 is elastically deformed in the insertion direction P, and the effect of advancing the joint member to the back of the joint (details will be described later) can be more easily obtained. It is preferable to insert it after deforming it.

Further, in the closed cross section of the insertion portion 20, a buckling prevention portion 26 that connects one end and the other end of the insertion direction P is provided. As a result, when the joint member 10 is inserted into the joint 18, the closed cross section of the insertion portion 20 is suppressed or prevented from being crushed in the direction opposite to the insertion direction P, and the work when the joint member 10 is inserted into the joint 18. Sex improves. The buckling prevention portion 26 may be made of the same material as the pair of side surface portions 24, but by being made of a material having a higher elastic modulus than the pair of side surface portions 24, the insertion direction P of the insertion portion 20 Since elastic deformation is more effectively suppressed, it is preferable to use a material having a higher elastic modulus than the pair of side surface portions 24.

When the insertion portion 20 is inserted into the joint 18, the insertion portion 20 tries to return to the natural shape as shown in FIG. 4 (B). Here, since the width dimension W1 (see FIG. 1 (A)) of the insertion portion 20 in the natural state is set to be larger than the width dimension W2 (see FIG. 1 (B)) of the joint 18, the joint 18 is formed. A pair of side surface portions 24 of the insertion portion 20 presses at least one of the side surfaces 14A, 16A and the corner portions 14C, 16C of the face materials 14 and 16 on both sides.

Further, the repulsive portion 28 (see FIG. 4A), which was elastically deformed toward the front side in the insertion direction P and inward in the width direction before the insertion, tries to return to the shape in the natural state. Here, in the natural state, the repulsive portion 28 is inclined toward the decorative portion 22 side, that is, the side opposite to the insertion direction P toward both ends in the width direction. Therefore, when the insertion portion 20 is inserted into the joint 18, the repulsive portion 28 repels. An elastic (restoring) force is generated in the portion 28 in the direction opposite to the insertion direction P. This elastic force is input to the face members 14 and 16 together with the elastic force for the pair of side surface portions 24 to return to the natural state (shown as F3), and the insertion portion 20 faces the elastic (restoring) force F3. Since the reaction force received from the members 14 and 16 acts on the inside of the insertion portion 20 in the width direction and in the direction toward the insertion direction P (that is, diagonally forward), the joint member 10 further extends to the back of the joint 18 in the insertion direction P. It will move forward. Further, since the tip portions of the pair of side surface portions 24 also try to return to the sharp shape in the natural state, the joint member 10 moves forward to the back of the joint 18 as a whole. As a result, workability when inserting the joint member 10 into the joint 18 is improved.

When the joint member 10 is attached to the joint 18, as shown in FIG. 4C, the elastically deformable decorative portion 22 connected to the base end portion 20A of the insertion portion 20 has two face materials 14, 16 It is laid over the design surface of the joint 18 and covers the joint 18 along the longitudinal direction thereof. Further, in the natural state, the decorative portion 22 is inclined toward the insertion portion 20 toward both ends in the joint width direction (see FIG. 1A). Therefore, when the joint member 10 is attached to the joint 18, the decorative portion 22 is made up. Both ends of the portion 22 in the joint width direction are elastically deformed to the side opposite to the insertion direction P. Therefore, an elastic force F2 that tries to return to the shape in the natural state acts on the decorative portion 22 toward the insertion direction P, and both ends of the decorative portion 22 in the joint width direction are the design surfaces 14B and 16B of the face materials 14 and 16. Is pressed into close contact with the face materials 14 and 16. As a result, the joint 18 can be covered regardless of the relative arrangement of the face members 14 and 16 on both sides constituting the joint 18.

Further, since an elastic force F1 that tends to return to the shape in the natural state is generated in the insertion portion 20, at least one of the side surfaces 14A and 16A and the corner portions 14C and 16C of the face members 14 and 16 on both sides constituting the joint 18 is inserted. By pressing, the insertion portion 20 is fitted to the joint 18. Since the insertion portion 20 has a hollow closed cross-sectional structure and is configured as a member continuous over the entire length in the depth direction (insertion direction P), the relative arrangement of the face members 14 and 16 on both sides of the joint 18 and The insertion portion 20 is fitted to the joint regardless of the plate thickness.

Further, in the closed cross section of the insertion portion 20, an elastically deformable repulsion portion 28 that connects one end (a pair of side surface portions 24) of the insertion portion 20 in the joint width direction and the buckling prevention portion 26 is provided, so that the insertion portion is provided. When the 20 is attached to the joint 18, elastic forces are generated so that the left side portion 28A and the right side portion 28B of the repulsive portion 28 elastically deformed inward in the width direction return to their natural states, respectively, and the insertion portions 20 are inserted into the face materials 14 and 16. Is fitted more firmly.

According to the above configuration, the joint 18 can be closed and covered regardless of the relative arrangement of the face members 14 and 16 on both sides constituting the joint 18. For example, in addition to the flat joint portion 13 shown in FIGS. 1 (B) and 4 (A) to 4 (C), the inside corner portion 30 shown in FIG. 2 (A) and FIG. 2 (B) are shown. It can be applied to the relative positions of various building facings such as another inside corner 40 and the outside corner 50 shown in FIG. In other words, the joint member 10 according to the present embodiment can be applied regardless of the cross-sectional shape of the joint. When applied to other than the flat joint portion 13, it operates in the same manner as in the case of the flat joint portion 13 described above, and the same effect can be obtained. Further, the angle formed by the face materials on both sides of the joint may be an angle other than 180 degrees and 90 degrees, and can correspond to various angles. Further, even if at least one of the face materials 14, 16, 32, 34, 42, 44, 52, 54 on both sides of the joints 18, 36, 46, 56 is thin, for example, a glass plate. It can be applied even if the thickness of the face materials on both sides is different. Further, it can be applied to a joint between two face materials having a thickness larger than the dimension (depth dimension) of the insertion portion 20 in the insertion direction P.

As described above, the joint member 10 according to the present embodiment has the relative arrangement and plate thickness of the face members 14, 16, 32, 34, 42, 44, 52, 54 on both sides of the joints 18, 36, 46, 56. Since it can be used regardless, it can be applied to various places in the building 12. For example, it can be applied to the inner wall, the outer wall, the connection between the ceiling and the wall, around the window, and the like of the building 12. In addition, since it is not easily restricted by the plate thickness, face materials 14, 16, 32, 34, 42, 44, 52, 54 can be used as face materials of various materials such as glass plates, outer wall finishing materials, metals, and gypsum boards. Applicable. Further, it can be applied even when the face materials 14, 16, 32, 34, 42, 44, 52, 54 on both sides have different plate thicknesses, and therefore, face materials of different materials on the left and right can be used. It can also be applied when used.

[Modification example]
Hereinafter, a modified example of the present embodiment will be described with reference to FIG. The same components as those in the above-described embodiment are designated by the same numbers, and the description thereof will be omitted.

The joint member 60 according to the modified example includes an insertion portion 20 and a decorative portion 22, and a buckling prevention portion 26 and a repulsion portion 28 are provided in the closed cross section of the insertion portion 20. In that respect, it has the same configuration as the joint member 10 according to the above embodiment. The joint member 60 according to the modified example has the same configuration as the joint member 10 according to the above embodiment, and includes a pair of heat-expanding members 62 provided on the surface of the decorative portion 22 on the insertion direction side. As an example, a tape-shaped heat-expanding member 62 having an adhesive coated on one side may be attached to the decorative portion 22.

According to the above modification, by providing the pair of heat-expanding members 62 on the surface of the decorative portion 22 on the insertion direction side, the heat-expanding members 62 expand in the event of a fire to prevent the spread of fire from the gaps in the joints. be able to.

In addition, instead of the heat expansion member 62, a foaming member may be provided on the surface of the decorative portion 22 on the insertion direction side. In this case, at least one of airtightness, heat insulation and waterproofness can be improved.

Further, the heat expansion member may be filled in the closed cross section of the insertion portion 20. In this case, the hardness of the heat-expanding member is set so that the pair of side surface portions 24 of the insertion portion 20 can be elastically deformed. Also in this case, in the event of a fire, the heating expansion member expands and the gap between the joints 18 is closed, so that it is possible to prevent the spread of fire from the gap.

[Supplementary Description of the above Embodiment]
In the above-described embodiment, the insertion portion 20 is provided with the buckling prevention portion 26 and the repulsion portion 28 in the closed cross section, but the present invention is not limited to this. For example, the insertion portion 20 may be configured not to include the buckling prevention portion 26 and the repulsion portion 28. Further, the buckling prevention portion 26 may be provided instead of the repulsion portion 28. Further, the buckling prevention portion 26 may not be provided and only the repulsion portion 28 may be provided. When the buckling prevention portion 26 is not provided, the repulsion portion 28 is bridged between the pair of side surface portions 24 and is inclined toward the decorative portion 22 side toward both ends in the width direction in a plan view (repulsion portion 28). The central portion in the width direction of the above may be convex in the insertion direction P).

Further, in the above-described embodiment, the pair of side surface portions 24 of the insertion portion 20 have a substantially arcuate cross section, but the present invention is not limited to this. For example, the pair of side surface portions 24 may each include a bent portion that is convex outward in the width direction in a plan view in the vicinity of the central portion in the insertion direction P. In this case, if the width dimension of the insertion portion 20 at the positions of the left and right bent portions is configured to be larger than the width dimension of the joints 18, 36, 46, 56 (the width dimension at the position where the width is minimized), the above will be described. The same effect as that of the embodiment can be obtained.

Further, in the above-described embodiment, the left side portion 22A and the right side portion 22B of the decorative portion 22 are configured to become thinner toward both ends in the lateral direction of the decorative portion 22, but the shape of the decorative portion of the present invention is Not limited to this. For example, the decorative portion 22 may be provided with rising portions erected from both ends in the lateral direction of the design surface. In this case, the rising portion is formed by extrusion molding integrally with the other parts of the joint member 10, and the joint members 10 are attached to the joints 18, 36, 46, 56 and the lengths of the joints 18, 36, 46, 56. It is extended along the direction.

Further, in the above-described embodiment, the joint member 10 has a uniform cross-sectional shape shown in FIG. 1A extending along the longitudinal direction thereof, but the decorative portion 22 is post-processed to perform joint processing. The cross-sectional shape of the member 10 may not be uniform in the longitudinal direction. For example, the design surface of the decorative portion 22 may be decorated with a pattern, engraving, or the like. As another example, both ends in the width direction of the decorative portion 22 may be cut into a wavy shape or the like along the longitudinal direction.

Further, in the above-described embodiment, the repulsive portion 28 is inclined toward the decorative portion 22 side, that is, in the direction opposite to the insertion direction P toward both ends in the width direction in the natural state. Not limited to. For example, the repulsion portion 28 may extend along the width direction, or may be inclined in the insertion direction P toward both ends in the width direction. Even in these cases, when the insertion portion 20 is inserted into the joints 18, 36, 46, 56, an elastic force is generated so that the repulsion portion 28 returns to the natural state, and the face materials 14, 16, 32, 34 , 42, 44, 52, 54 are pressed, so that the insertion portion 20 is more firmly fitted to the joints 18, 36, 46, 56.

10, 60 joint members 14, 16, 32, 34, 42, 44, 52, 54 Face materials (building face materials)
14B, 16B, 32B, 34A, 42B, 44B, 52B, 54B Design surface 18, 36, 46, 56 Joint 20 Insertion part 20A Base end part 22 Decorative part 26 Buckling prevention part 28 Repulsion part 62 Heat expansion member P Insertion direction Width dimension of W1 insertion part W2, W4, W5, W6 Width dimension of joint

Claims (5)

An elastically deformable insertion part that is inserted into a joint formed between adjacent building facing materials and has a hollow closed cross-section structure that extends along the longitudinal direction of the joint.
An elastically deformable makeup that is formed at the base end of the insertion portion and, in the state of being attached to the joint, is bridged over the design surface of the adjacent building face material and covers the joint along the longitudinal direction. Department and
With
In the natural state, the width dimension in the joint width direction of the insertion portion is set to be larger than the joint width dimension.
In the natural state, the decorative portion is inclined toward the insertion portion toward both ends in the joint width direction.
Joint member. The joint member according to claim 1, wherein the insertion portion includes a buckling prevention portion that connects one end and the other end in the insertion direction in a closed cross section. The joint member according to claim 2, wherein the insertion portion includes an elastically deformable repulsive portion that connects one end in the joint width direction and the buckling prevention portion in a closed cross section. The joint member according to claim 3, wherein the repulsive portion is inclined toward the decorative portion toward both ends in the joint width direction in a natural state. The joint member according to any one of claims 1 to 4, wherein the decorative portion includes a sheet-shaped heat-expanding member or a foaming member on the surface of the decorative portion on the insertion direction side.