Wall penetration sleeve connection length adjustment member

Abstract

To eliminate preparation of a wall penetration sleeve for each house manufacturer or specification, and enable a wall penetration sleeve with a constant size and shape to be used even when a thickness of an outer wall of a building is different.SOLUTION: A length adjustment pipe 41 of a connection length adjustment member 40 for a wall penetration sleeve is made to straddle a wall penetration sleeve 20 and a vent cap 30 of an outer wall 10 of a building. An elastic locking member 50 provided in the length adjustment pipe 41 is brought into contact with a peripheral surface of the wall penetration sleeve 20 to be elastically deformed in a pipe radial direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a connection length adjustment member for a wall penetration sleeve for air conditioning or ventilation provided on the outer wall of a building, and particularly to a connection length adjustment member for connecting a wall penetration sleeve to a vent cap.

Background Art

[0002] A through hole is formed in the outer wall of a building, and a wall penetration sleeve is provided in the through hole. A vent cap is provided at the opening of the through hole on the outdoor side. The vent cap is connected to the wall penetration sleeve.

[0003] Specifically, a wall penetration sleeve is inserted into the through holes of the interior material of the outer wall and the wall body. A vent cap is provided on the siding (exterior material) of the outer wall. The connection cylinder of the vent cap is inserted into and connected to the outdoor side end of the wall penetration sleeve.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The thickness of the outer wall of a building (the distance between the interior material of the outer wall and the siding) varies depending on the house builder, and even for the same house builder, it often varies depending on the specifications. For this reason, depending on the house builder or the specifications, the outdoor side end of the wall penetration sleeve provided in the interior material of the outer wall and the wall body and the connection cylinder of the vent cap provided on the siding may be separated, and it may be impossible to connect the wall penetration sleeve and the vent cap. Preparing wall penetration sleeves corresponding to each house builder or each specification is complicated and costly. In view of these circumstances, the present invention aims to eliminate the need to prepare wall penetration sleeves for each house builder or specification, and to enable the use of wall penetration sleeves of a fixed size and shape, even if the thickness of the building's exterior wall differs. [Means for solving the problem]

[0006] To solve the above problems, the present invention provides a wall penetration sleeve connection length adjusting member for adjusting the connection length with a vent cap in a wall penetration sleeve for air conditioning or ventilation installed in the exterior wall of a building, A length adjustment pipe spanning the wall penetration sleeve and the vent cap, An elastic locking member provided on the length adjustment pipe, which is elastically deformed in the radial direction of the pipe upon contact with the circumferential surface of the wall penetration sleeve, It is characterized by having the following features.

[0007] Preferably, the elastic locking member is an elastic tape attached to the circumferential surface of the length adjustment tube. Preferably, the elastic tape is annular in shape, extending around the entire circumference of the length adjustment tube. Preferably, the thickness of the elastic tape is greater than the difference between the inner radius of the wall penetration and the outer radius of the length adjustment pipe.

[0008] The elastic locking member may include a continuous portion connected to the length adjustment pipe and a leaf spring portion extending cantilevered from the continuous portion toward the outdoors. It is preferable that the leaf spring portion is curved in an arc shape when viewed from the side in the circumferential direction of the length adjustment tube. [Effects of the Invention]

[0009] According to the present invention, the connection length between the wall penetration sleeve and the vent cap can be adjusted. Therefore, there is no need to prepare wall penetration sleeves for each house manufacturer or specification, and even if the thickness of the building's exterior wall differs, a wall penetration sleeve of a fixed size and shape can be used to accommodate it. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is an exploded side view showing, in part cross-section, how a wall penetration structure including a connection length adjustment member for a wall penetration sleeve according to the first embodiment of the present invention is installed on the exterior wall of a building. [Figure 2] Figure 2 is a side view showing a partial cross-section of the wall penetration structure installed on the outer wall. [Figure 3] Figure 3 is a perspective view of the connection length adjustment member for the wall penetration sleeve. [Figure 4] Figure 4(a) is an enlarged cross-sectional view of circular section IVa in Figure 1. Figure 4(b) is an enlarged cross-sectional view of circular section IVb in Figure 2. [Figure 5] Figure 5 is an exploded side view showing, in partial cross-section, how a wall penetration structure including a connection length adjustment member for a wall penetration sleeve according to the second embodiment of the present invention is installed on the exterior wall of a building. [Figure 6] Figure 6 is a perspective view of the connection length adjustment member for a wall penetration sleeve according to the second embodiment. [Figure 7] Figure 7(a) is an enlarged cross-sectional view of the circular portion VIIa in Figure 5. Figure 7(b) is an enlarged cross-sectional view showing the service state of the connection length adjustment member for the wall penetration sleeve according to the second embodiment. [Modes for carrying out the invention]

[0011] Embodiments of the present invention will be described below with reference to the drawings. <First Embodiment (Figures 1-4)> As shown in Figures 1 and 2, a through-hole 19 is formed in the exterior wall 10 of the building, penetrating from the interior to the exterior. A wall penetration structure 1 for air conditioning or ventilation is installed in the through-hole 19. The wall penetration structure 1 includes a wall penetration sleeve 20 for air conditioning or ventilation and a vent cap 30.

[0012] The wall penetration sleeve 20 includes a sleeve main body 21 and a mounting plate 22. The sleeve main body 21 penetrates through the wall main body 11 in the middle of the outer wall 10, the heat insulation material layer 12, and the interior material 13 facing the interior. A duct 2 is connected to the indoor side end portion 21b (the left side in FIG. 1) of the sleeve main body 21. A ventilation gallery may be provided at the indoor side end portion 21b instead of the duct 2.

[0013] A mounting plate 22 is provided on the outer periphery of the sleeve main body 21. The mounting plate 22 is attached to the wall main body 11 and fixed by screws 24. The outdoor side end portion 23 of the wall penetration sleeve 20 protrudes to the outdoor side (the right side in FIG. 1) from the mounting plate 22 and thus the wall main body 11. The outdoor side end portion 23 is disposed in the air layer 15 between the siding 14 (exterior material) facing the outdoor of the outer wall 10 and the wall main body 11.

[0014] As shown in FIG. 1, a vent cap 30 is provided on the siding 14. The vent cap 30 includes a vent portion 31 and a connecting cylinder 32. As shown in FIG. 2, the vent portion 31 covers the outdoor side opening of the through hole 19 and is fixed to the outdoor side surface (the right side surface in FIG. 2) of the siding 14 by fixing means (not shown) such as screws. The connecting cylinder 32 is inserted into the through hole 19d in the siding 14. The space between the outdoor side surface (the right side surface in FIG. 2) of the siding 14 or the inner peripheral surface of the through hole 19d and the vent cap 30 is liquid-tightly sealed by a caulking material (not shown).

[0015] A plurality (for example, three) of leaf springs 33 are provided on the connecting cylinder 32 at intervals in the circumferential direction of the cylinder. The leaf springs 33 are formed by raising the cylinder wall of the connecting cylinder 32, but the leaf springs 33 may be separately formed from the connecting cylinder 32 and attached to the connecting cylinder 32 by welding or the like.

[0016] As shown in Fig. 2, due to the design specifications or construction conditions of the outer wall 10, and the specifications of the wall penetration sleeve 20 and the vent cap 30, etc., the outdoor-side end 23 of the wall penetration sleeve 20 and the connection cylinder 32 of the vent cap 30 are separated and not directly connected. As shown in Figs. 1 and 2, a connection length adjustment member 40 for the wall penetration sleeve is arranged between these wall penetration sleeve 20 and vent cap 30. Through the connection length adjustment member 40 for the wall penetration sleeve, the outdoor-side end 23 of the wall penetration sleeve 20 and the connection cylinder 32 of the vent cap 30 are connected.

[0017] As shown in Fig. 3, the connection length adjustment member 40 for the wall penetration sleeve includes a length adjustment pipe 41 and an elastic locking member 42. The length adjustment pipe 41 is composed of a short cylindrical straight pipe with a constant diameter. The length adjustment pipe 41 is formed, for example, by winding a steel plate in a ring shape and joining both ends by stitch welding or the like. Preferably, the surface of the length adjustment pipe 41 is subjected to a rust prevention treatment. As shown in Fig. 1, the outer diameter of the length adjustment pipe 41 is slightly (preferably about several mm) smaller than the inner diameter of the sleeve body 21.

[0018] As shown in Fig. 1, an elastic locking member 42 is provided on the outer periphery of a portion (left side in Fig. 1) on the indoor side of the central portion in the pipe axis direction of the length adjustment pipe 41. As shown in Fig. 3, the elastic locking member 42 of the first embodiment is composed of one or more (here one) elastic tapes 43. As shown in Fig. 4(a), the elastic tape 43 includes an elastic material layer 44 made of rubber or elastic foamed resin and an adhesive layer 45. Preferably, a butyl tape is used as the elastic tape 43.

[0019] As shown in Figures 3 and 4(a), the elastic material layer 44 includes a thin-walled portion 44a and a thick-walled portion 44b. The thin-walled portion 44a is located on the indoor side (left side in Figure 4(a)) of the thick-walled portion 44b and is thinner than the thick-walled portion 44b. A step 44d is formed between the thin-walled portion 44a and the thick-walled portion 44b. In the natural state of the elastic tape 43 (unloaded or uncompressed state), the thickness of the thin-walled portion 44a is greater than the difference between the inner radius of the wall penetration sleeve 20 and the outer radius of the length adjustment pipe 41. The thick-walled portion 44b protrudes outward in the diameter direction of the pipe (upward in Figure 4(a)) than the thin-walled portion 44a. In the natural state, the thickness of the thick-walled portion 44b is greater than the difference between the outer radius of the wall penetration sleeve 20 and the outer radius of the length adjustment pipe 41.

[0020] As shown in Figure 4(a), a thin adhesive layer 45 is laminated over the entire back surface (bottom surface in the figure) of the elastic material layer 44. As shown in Figures 1 and 3, the elastic tape 43 is wrapped around the entire circumference of the length adjustment tube 41 in a ring shape. As shown in Figure 4(a), the elastic tape 43 is attached to the length adjustment tube 41 by the adhesive layer 45 adhering to the outer surface of the length adjustment tube 41.

[0021] As shown in Figure 2, the pipe axis of the length adjustment pipe 41 when in service is oriented in the thickness direction of the outer wall 10 (left and right in Figure 1) and is positioned coaxially with the wall penetration sleeve 20. The length adjustment pipe 41 straddles the outdoor end 23 of the wall penetration sleeve 20 and the vent cap 30. The indoor portion 41a of the length adjustment pipe 41 is inserted into the sleeve body 21. As shown in Figure 4(b), the elastic tape 43 is elastically deformed so as to be strongly pressed against the inner circumferential surface of the sleeve body 21 and compressed in the thickness direction (pipe diameter direction). As shown in Figure 2, the connecting cylinder 32 of the vent cap 30 is inserted into the inner circumference of the outdoor portion 41b of the length adjustment pipe 41, which is opposite to the indoor portion 41a. The leaf spring 33 is pressed against the inner circumferential surface of the outdoor portion 41b and pushed inward in the pipe diameter direction.

[0022] The wall penetration structure 1 is constructed as follows: As shown in Figure 1, wall penetration sleeves 20 are installed in the wall body 11, insulation layer 12, and interior material 13 of the exterior wall 10 so as to penetrate them.

[0023] The outdoor portion 41b of the length adjustment pipe 41 of the length adjustment member 40 is pre-fitted into the connecting pipe 32 of the vent cap 30. The leaf spring 33 elastically and strongly contacts the inner surface of the length adjustment pipe 41, thereby connecting the length adjustment member 40 and the vent cap 30 in a way that prevents them from coming apart.

[0024] The length-adjusting member 40 and connecting cylinder 32, which are then integrated, are inserted into the through-hole 19d of the siding 14 from the outside. Furthermore, as shown in Figures 2 and 4(b), the length adjustment member 40 is fitted into the already installed wall penetration sleeve 20. Specifically, the indoor portion 41a of the length adjustment pipe 41 is inserted into the inner circumference of the outdoor end 23 of the sleeve body 21. As a result, the elastic tape 43 is tightly clamped between the sleeve body 21 and the length adjustment pipe 41 and is compressed and deformed in the thickness direction (up and down in Figure 4(b)). This causes the elastic tape 43 to elastically and strongly contact the inner circumference of the sleeve body 21, generating a large frictional force between the elastic locking member 42 and the sleeve body 21, thereby connecting the length adjustment member 40 and the wall penetration sleeve 20 so that they do not come apart.

[0025] In this way, the wall penetration sleeve 20 and the vent cap 30 are connected via the length adjustment member 40. By using the length adjustment member 40, the wall penetration sleeve 20 and the vent cap 30 can be easily connected regardless of differences in house manufacturers or specifications. In particular, even if the thickness of the exterior wall 10 (the distance between the interior material 13 and the siding 14) is slightly different, the wall penetration sleeve 20 and the vent cap 30 can be reliably connected via the length adjustment member 40. In other words, the length adjustment member 40 allows the connection length between the wall penetration sleeve 20 and the vent cap 30 to be adjusted. Therefore, there is no need to prepare wall penetration sleeves for each house manufacturer or specification; a wall penetration sleeve of a fixed size and shape can be used.

[0026] By using elastic tape 43 as the elastic locking member 42, the structure of the wall penetration sleeve connection length adjustment member 40 can be simplified. The length adjustment pipe 41 can be a simple cylindrical pipe, and there is no need to cut or weld the pipe wall. By attaching the elastic tape 43 to the length adjustment pipe 41, the wall penetration sleeve connection length adjustment member 40 can be easily manufactured. As a secondary effect, the annular elastic tape 43 can seal the space between the wall penetration sleeve 20 and the length adjustment pipe 41. Furthermore, even if there is some axial misalignment between the wall penetration sleeve 20 and the vent cap 30, the elasticity of the elastic tape 43 can absorb the misalignment.

[0027] Next, other embodiments of the present invention will be described. In the following embodiments, components that overlap with those described above will be denoted by the same reference numerals in the drawings and their descriptions will be omitted. <Second Embodiment (Figures 5-7)> As shown in Figures 5 and 6, in the pipe penetration structure 1B of the second embodiment, three (or more) elastic locking members 50 are provided on the outer circumferential surface of the length adjustment pipe 41 of the wall penetration sleeve connection length adjustment member 40B. These elastic locking members 50 are arranged apart in the circumferential direction of the length adjustment pipe 41, preferably at equal intervals. As shown in Figure 7(a), each elastic locking member 50 includes a continuous portion 51 and a leaf spring portion 52. The continuous portion 51 is formed in a flat plate shape, and is connected to the length adjustment pipe 41 by being attached to and fixed to the outer circumferential surface of the length adjustment pipe 41. The means of fixing the continuous portion 51 and the length adjustment pipe 41 may be welding or rivets.

[0028] The leaf spring section 52 extends cantilevered from the continuous section 51 toward the outdoor side (to the right in Figure 7(a)). When viewed from the side of the length adjustment pipe 41 in the circumferential direction, the leaf spring section 52 is curved in a convex arc toward the outside in the radial direction of the length adjustment pipe 41 (to the upper side in Figure 7(a)). The leaf spring section 52 protrudes further outward in the radial direction (to the upper side in Figure 7(a)) than the length adjustment pipe 41.

[0029] A claw portion 53 is provided at the tip of the leaf spring portion 52. The claw portion 53 protrudes from the leaf spring 52 toward the outside (to the right in Figure 7(a)) and is inclined toward the outside in the diameter direction of the pipe (to the top in Figure 7(a)).

[0030] As shown in Figure 5, when the wall penetration structure 1B is constructed, the length adjustment member 40B is fitted into the wall penetration sleeve 20 from the outside. As shown in Figure 7(b), the leaf spring portion 52 of the elastic locking member 50 abuts against the outside end 23 of the wall penetration sleeve 20 and is elastically deformed inward in the diameter direction of the pipe (downward in Figure 7(b)), so as to be positioned between the sleeve body 21 and the length adjustment pipe 41. The leaf spring portion 52 of the elastic locking member 50 elastically and strongly abuts the inner circumferential surface of the sleeve body 21 and is elastically deformed so as to be crushed inward in the diameter direction of the pipe (downward in Figure 7(b)). This generates a large frictional force between the sleeve body 21 and the leaf spring 52, connecting the length adjustment member 40B and the wall penetration sleeve 20 so as not to come apart. The tip and claw portion 53 of the leaf spring portion 52 are pressed against the outer surface of the length adjustment tube 41.

[0031] The present invention is not limited to the embodiments described above, and various modifications can be made without violating its spirit. For example, the length adjustment pipe 41 may be fitted onto the outer circumference of the outdoor end 23 of the wall penetration sleeve 20. The elastic locking members 42 and 50 may be provided on the inner surface of the length adjustment pipe 41 so as to be pressed against the outer surface of the wall penetration sleeve 20. The length adjustment tube 41 may be fitted into the inner circumference of the connecting tube 32 of the vent cap 30. In the first embodiment, the elastic tape 43 does not necessarily have to be wrapped around the entire circumference of the length adjustment tube 41 in an annular shape, but may be attached at several points separated in the circumferential direction of the length adjustment tube 41. Multiple elastic tapes 43 may be provided at intervals in the circumferential or axial direction of the length adjustment tube 41. In the second embodiment, the continuous portion 51 of the elastic locking member 50 may be connected to the same body as the length adjustment tube 41. The elastic locking member 50 may be formed by cutting and bending the length adjustment tube 41. [Industrial applicability]

[0032] This invention is applicable to ventilation structures for the exterior walls of buildings. [Explanation of Symbols]

[0033] 1,1B Wall penetration structure 2 ducts 10 Exterior Walls 11 Wall Unit 12. Insulation layer 13 Interior materials 14. Siding (exterior cladding) 15. Air layer 19 Through holes 19d Through hole in siding 14 19d 20 Wall penetration sleeves 21 Sleeve body 21b Indoor end 22 Mounting plate 23 Outdoor end 24 screws 30 Vent Cap 31 Vent section 32 connecting tube 33 Leaf spring 40,40B Wall Penetration Sleeve Connection Length Adjustment Member 41 Length adjustment tube 41 41a Indoor part 41b Outdoor part 42 Elastic locking member 43 Elastic Tape 44 Elastic material layer 45 Adhesive layer 50 Elastic locking member 51 Continuous section 52 Leaf spring section 53 Nail area

Claims

1. A wall penetration sleeve connection length adjustment member for adjusting the connection length between an outdoor vent cap and a wall penetration sleeve for air conditioning or ventilation installed in the exterior wall of a building, A length adjustment pipe spanning the wall penetration sleeve and the vent cap, An elastic locking member provided on the length adjustment pipe, which is elastically deformed in the radial direction of the pipe upon contact with the circumferential surface of the wall penetration sleeve, Equipped with, The elastic locking member is an elastic tape attached to the circumferential surface of the length adjustment pipe facing the wall penetration sleeve. The elastic tape is wound in a ring around the entire circumference of the length adjustment tube. The connection length adjustment member for a wall penetration sleeve is characterized in that the elastic tape includes a thin portion and a thick portion provided on the outdoor side of the thin portion, and a step is formed between the thin portion and the thick portion.

2. The wall penetration sleeve connection length adjustment member according to Claim 1, characterized in that the thickness of the thin portion of the elastic tape in an uncompressed state is greater than the difference in radius between the opposing circumferential surfaces of the wall penetration sleeve and the length adjustment pipe.

3. A wall penetration sleeve connection length adjusting member for adjusting the connection length with a vent cap in a wall penetration sleeve for air conditioning or ventilation installed in the exterior wall of a building, A length adjustment pipe spanning the wall penetration sleeve and the vent cap, An elastic locking member provided on the length adjustment pipe, which is elastically deformed in the radial direction of the pipe upon contact with the circumferential surface of the wall penetration sleeve, A wall penetration sleeve connecting length adjustment member, characterized in that the elastic locking member includes a continuous portion connected to the length adjustment pipe and a leaf spring portion extending cantilevered from the continuous portion toward the outdoor side.

4. The wall penetration sleeve connection length adjustment member according to claim 3, characterized in that the leaf spring portion is curved in an arc shape when viewed from the side in the circumferential direction of the length adjustment pipe.

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