JP4725340B2 - Bathroom wall panel connection structure - Google Patents

Description

  The present invention relates to a connecting structure of bathroom wall panels constituting a wall of a unit bathroom.

  The wall of the conventional unit bathroom is comprised by connecting in the state which faced each side edge part of the bathroom wall panel as shown, for example in patent document 1. FIG.

  As a connecting structure of this type of bathroom wall panel, for example, those shown in FIGS. 8 and 9 are known. In this connection structure, when one of the bathroom wall panels 1 that are adjacent at right angles in plan view is the first wall panel 2 and the other is the second wall panel 3, the side wall of the first wall panel 2 is engaged. The protrusion 12 protrudes toward the second wall panel 3 side. The engaging protrusion 12 is provided on a moving member 13 that is arranged in the side frame portion 7 of the first wall panel 2 so as to be movable up and down, and the tip of the engaging protrusion 12 constitutes a side end surface of the first wall panel 2. It protrudes toward the outside through the outer surface portion of the side frame portion 7 to be performed. A head 17 having a diameter larger than that of the neck 16 formed on the proximal end side is formed at the distal end of the engagement protrusion 12. On the other hand, an outer edge piece 22 facing the side end surface of the first wall panel 2 protrudes outward from the side edge of the second wall panel 3, and the engagement protrusion 12 is engaged with the outer edge piece 22. A daruma hole 31 is formed for mating. The daruma hole 31 communicates with the engagement hole 27 narrower than the head 17 of the engagement protrusion 12 and wider than the neck 16, and the upper end of the engagement hole 27, and the head 17 of the engagement protrusion 12. And a head insertion hole 29 that is larger than the head 17 and can be inserted through the head 17. When connecting the 1st wall panel 2 and the 2nd wall panel 3, for example, the 1st wall panel 2 is moved to the 2nd wall panel 3 side, and the head of the round hole 31 of the head 17 of the engagement protrusion 12 is obtained. After that, the engaging projection 12 is moved downward with respect to the first wall panel 2 together with the moving member 13. As a result, the neck 16 of the engaging protrusion 12 is inserted into the engaging hole 27 and the head 17 is disposed on the opposite side of the outer edge piece 22 from the first wall panel 2 so that the engaging protrusion 12 is engaged. The first wall panel 2 and the second wall panel 3 are connected to each other by engaging with the hole 27.

By the way, when the head 17 of the engaging protrusion 12 is inserted into the head insertion hole 29 of the daruma hole 31, it is necessary to move the first wall panel 2 toward the outer side on the second wall panel 3 side. Therefore, a large space for moving the first wall panel 2 is required on the outer side of the first wall panel 2 opposite to the second wall panel 3. However, when the bathroom wall panel 1 or the building frame wall that is erected first in this space is present, the head 17 of the engaging protrusion 12 may not be inserted into the head insertion hole 29. Further, for example, as shown in FIG. 8, the second wall panel 3 is forcibly pushed outward and greatly deformed, and the head 17 of the engaging projection 12 of the first wall panel 2 is inserted into the head hole 31 of the saddle hole 31. Although it can be considered that the hole 29 is inserted, in this case, the second wall panel 3 is deformed, and the connecting operation becomes very difficult.
JP 2006-9390 A

  The present invention has been invented in view of the above-mentioned conventional problems, and the head of the engaging protrusion is also provided when there is a bathroom wall panel or a building frame wall that is erected on the outer side of the first wall panel. It is an object of the present invention to provide a connecting structure for a bathroom wall panel that can be easily inserted into an engaging hole.

In order to solve the above problems, the bathroom wall panel connection structure according to the present invention has one of the adjacent bathroom wall panels 1 as the first wall panel 2 (or 2 ') and the other as the second wall panel 3 ( Or 3 ′), and an engaging projection 12 is provided to project outward from the side end face of the first wall panel 2 (2 ′), and the distal end of the engaging projection 12 is located on the proximal side. A head portion 17 wider than the formed neck portion 16 is formed, and an outer edge piece portion 22 that protrudes from the side edge of the second wall panel 3 (3 ′) to the side end surface of the first wall panel 2 (2 ′) is projected. The outer edge piece 22 is narrower than the head 17 of the engagement protrusion 12 and wider than the neck 16, and wider than the neck 16 and has one end communicating with the engagement hole 27. In addition, an introduction notch 28 having the other end opened from the protruding edge of the outer edge piece 22 is formed, and the introduction formed by the other end opening of the introduction notch 28 is formed. 32 and the engagement hole 27 are arranged at different positions in the vertical direction, and the neck 16 of the engagement protrusion 12 is inserted into the engagement hole 27 and is opposite to the first wall panel 2 (2 ′) of the outer edge piece 22. by placing the head 17 on the side, the engaging projection 12 a connecting structure of a bathroom wall panels engage the engaging hole 27, the second wall panel 3 of the first wall panel 2 (2 ') ( 3 ') side end surface is constituted by a side piece portion 11 projecting from the side edge of the first wall panel 2 (2') toward the back, and an inner space formed inside the side piece portion 11 15 is provided with a movable member 13 that is movable in the vertical direction, and an engaging projection 12 is projected outward from the movable member 13 and slides more proximally than the neck 16 of the engaging projection 12. A portion 19 is provided, and the sliding portion 19 of the engaging projection 12 is slidably inserted vertically into a long hole 14 formed in the side piece portion 11 of the first wall panel 2 (2 '). In addition, the neck portion 16 and the head portion 17 of the engaging protrusion 12 are projected outward from the side piece portion 11, and the engaging protrusion 12 is moved in the vertical direction together with the moving member 13 at the upper end portion of the moving member 13. A moving operation portion 13a for moving operation is provided, the upper end of the engagement hole 27 is communicated with one end of the introduction notch 28, and the neck 16 of the engagement protrusion 12 is dropped into the engagement hole 27 to be engaged. It is characterized by that. With the above configuration, the neck 16 of the engagement protrusion 12 is introduced when the engagement protrusion 12 of the first wall panel 2 (2 ′) is engaged with the engagement hole 27 of the second wall panel 3 (3 ′). It can be introduced into the engagement hole 27 through the notch 28. That is, by moving the first wall panel 2 (2 ′) in the thickness direction, the neck portion 16 of the engagement protrusion 12 can be introduced into the introduction cutout 28, and this neck portion 16 can be introduced into the engagement hole 27, so that the first wall The head of the engaging protrusion 12 is also provided when the bathroom wall panel 1 or the building frame wall that is erected on the outer side opposite to the second wall panel 3 (3 ') of the panel 2 (2') is present. The portion 17 can be easily inserted into the engagement hole 27.

Also, just to move the moving member 13 by operating the movement operation part 13a in the vertical direction, or engage the engaging projection 12 with the engaging hole 27, or to cancel the engagement, in this case, It is not necessary to move the entire first wall panel 2 (2 '), and the connection work or the connection release work is facilitated.

A second aspect of the present invention is the first aspect of the present invention, wherein the introduction notch 28 formed in the outer edge piece 22 of the second wall panel 3 is larger than the head 17 of the engaging projection 12 and the head 17 can be inserted. A part insertion hole 29 is provided, and a finger insertion notch 38 extending from the projecting edge that is the free end of the outer edge piece 22 to the base end is formed. When exchanging the second wall panel 3, the moving member 13 is moved upward to remove the engaging protrusion 12 from the engaging hole 27, and then the head 17 is removed from the head insertion hole 29. The connection between the first wall panel 2 and the second wall panel 3 is released, and both sides of the second wall panel 3 are lifted by grasping with fingers. When the second wall panel 3 is lifted, A finger inserted from between the second wall panels 3 is passed through the finger insertion notch 38, and the side end portion of the second wall panel 3 can be grasped by the fingers. Accordingly, it is not necessary to lift the second wall panel 3 by grasping the tip of the outer edge piece 22 with a finger, and it is possible to prevent the finger from being damaged by the sharp edge of the outer edge piece 22.

A third aspect of the present invention is the first or second aspect of the present invention, wherein the first wall panel 2 and the second wall panel 3 are adjacent to each other at a right angle in a plan view, and the outer edge piece 22 is formed of the second wall panel 3. It is characterized by projecting outward. The connection structure described above can be adopted in the case where the first wall panel 2 and the second wall panel 3 are adjacent at a right angle in plan view.

In the present invention, by moving the first wall panel in the thickness direction, the neck portion of the engaging protrusion can be introduced into the notch for introduction, and the neck portion can be introduced into the engaging hole. Even when a bathroom wall panel or a building frame wall previously provided on the outer side on the opposite side is present, the head of the engaging protrusion can be easily inserted into the engaging hole. Further, the engagement protrusion can be engaged with or released from the engagement hole simply by operating the movement operation portion to move the moving member in the vertical direction. In this case, the first wall panel It is not necessary to move the whole, and the connection work or the connection release work becomes easy.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. FIG. 2 is a plan view showing a connection structure of bathroom wall panels 1 constituting the wall of the unit bathroom, and these bathroom wall panels 1 stand on a floor pan 4 (see FIG. 6) constituting the floor of the unit bathroom. Established. A ceiling panel (not shown) constituting the ceiling of the unit bathroom is placed on the bathroom wall panel 1.

  As the bathroom wall panel 1, two types are used: a bathroom wall panel 1a having a surface portion made of a surface plate 5 made of a metal plate, and a bathroom wall panel 1b having a surface portion made of an inorganic plate 6 such as cement. In the figure, a relatively expensive bathroom wall panel 1a constitutes a wall on which a counter or the like is installed, and a relatively inexpensive bathroom wall panel 1b constitutes another wall.

One of the two types of bathroom wall panels 1a and 1b has a front wall portion of a hollow columnar side frame portion 7 that is vertically long attached to both side edges on the back surface of the inorganic board 6. The side frame portions 7 are formed by bending a metal plate into a substantially rectangular shape in cross section. Both side end surfaces of the bathroom wall panel 1a are constituted by side piece portions 11 projecting from the side edge of the bathroom wall panel 1a toward the back, and in this embodiment, the side piece portions 11 are constituted by outer side portions of the side frame portions 7. ing. Further, the other bathroom wall panel 1b is formed by bending the both side edges of the surface plate 5 having the heat insulating material 10 adhered to the back to the back to form the edge protrusion pieces 8, and further folding back the tips of the edge protrusion pieces 8. Thus, the reinforcing portion 9 is formed.

Of the bathroom wall panels 1a and 1b constituting the bathroom wall, the bathroom wall panel 1a shown in 1a ₁ of FIG. 2 is the first wall panel 2 and is adjacent to the first wall panel 2 at a right angle in plan view. The bathroom wall panel 1b shown in 1b ₁ is defined as the second wall panel 3.

An engaging protrusion 12 that protrudes outward is provided at the upper end of the outer surface of the side frame portion 7a that forms the side end surface of the first wall panel 2 on the second wall panel 3 side. The engagement protrusion 12 is movable in the vertical direction with respect to the first wall panel 2. As means for making the engaging projection 12 movable up and down, it can be moved up and down in an inner space 15 formed inside the side piece 11 of the first wall panel 2 (that is, inside the side frame 7a). The moving member 13 is provided, and the side piece 11 is provided with a long hole 14 that is long in the vertical direction. The moving member 13 is formed by bending a metal plate that is long in the vertical direction into an L shape in plan view. One piece of the L-shaped moving member 13 is along the inner surface of the outer surface portion of the side frame portion 11 (that is, the inner surface of the side piece portion 11), and the other piece is along the inner surface of the front surface portion of the side frame portion 7. Yes. A female screw hole (not shown) is provided at a position corresponding to one piece of the engaging protrusion 12 of the moving member 13, and a male screw part (not shown) formed at one end of the engaging protrusion 12 in the female screw hole. Z). A part of the engaging projection 12 attached in this way is a sliding portion 19 in the axial direction, and the sliding portion 19 is accommodated in the elongated hole 14 of the side frame portion 7a so as to be slidable in the vertical direction. Further, the front end side (that is, the other end portion side) of the engaging protrusion 12 from the sliding portion 19 protrudes outward from the outer surface portion (that is, the side piece portion 11) of the side frame portion 7a. As a result, the moving member 13 moves up and down in the inner space 15 in the side frame portion 7 a so that the engaging projection 12 can move up and down in the long hole 14.

  As shown in FIG. 1, in the state where the engaging protrusion 12 is disposed on the upper portion 14a having the wide long hole 14, the upper end portion of the moving member 13 protrudes upward from the side frame portion 7a. The movable member 13 is set so as to be accommodated in the side frame portion 7a in a state where the elongated hole 14 is disposed in the lower portion 14b having a narrow width. In addition, the upper end of the moving member 13 protruding above the side frame portion 7 a in the state where the engaging protrusion 12 is positioned above the elongated hole 14 moves the moving member 13 together with the engaging protrusion 12 in the vertical direction. The moving operation unit 13a is used for moving operation. The moving operation unit 13a is provided with a hooking hole 37 for hooking the tip of a driver or the like to move the moving member 13 upward.

  A head 17 and a neck 16 closer to the base end than the head 16 are formed at the distal end of the engaging protrusion 12 protruding from the long hole 14 of the side frame 7 a, and the neck 16 is a sliding portion 19. It is formed on the protruding end side. The head 17 is wider and wider than the neck 16, and the end of the head 17 on the neck 16 side is a tapered portion 18 that gradually decreases in diameter toward the neck 16.

  A joint fitting 20 that is long in the vertical direction is attached to a side edge of the second wall panel 3 on the first wall panel 2 side. The joint fitting 20 is formed by bending a metal plate, and has an attachment piece portion 21, an outer edge piece portion 22 that protrudes outward from the front edge of the attachment piece portion 21, and an inner side from the rear edge of the attachment piece portion 21. The inner piece portion 23 projecting toward the end and the mounting piece portion 21 of the inner piece portion 23 are composed of a projecting piece portion 24 projecting forward from the edge on the opposite end side. Is done. The joint fitting 20 is fixed to the surface plate 5 of the second wall panel by fixing the mounting piece portion 21 to the outer surface of the edge protruding piece 8 protruding from the side edge of the surface plate 5 toward the back with screws 25. . The front surface of the outer edge piece portion 22 of the joint fitting 20 attached to the surface plate 5 is substantially flush with the front surface of the surface plate 5. Further, the projecting piece portion 24 is accommodated in a space formed between the heat insulating material 10 and the reinforcing portion 9, and its front edge comes into contact with the back surface of the surface plate 5.

  The outer edge piece 22 of the joint fitting 20 that protrudes outward from the side edge of the second wall panel 3 is a side frame of the first wall panel 2 in a state where the first wall panel 2 and the second wall panel 3 are connected. It faces the outer surface of the part 7. As shown in FIGS. 1 and 3, the outer edge piece 22 is narrower than the head 17 of the engagement protrusion 12 at a position corresponding to each engagement protrusion 12 of the first wall panel 2 and from the neck 16. A wider engagement hole 27 and an introduction notch 28 which is wider than the neck portion 16 and has one end communicating with the engagement hole 27 and the other end opening from the protruding edge of the outer edge piece portion 22 are formed.

  The introduction cutout 28 has a head insertion hole 29 whose lower end communicates with the upper end of the engagement hole 27, and one end communicates with the upper part of the head insertion hole 29 while extending in the lateral direction, and the other end is the tip of the outer edge piece portion 22. It consists of a through hole 30 opening from the edge. The widths of the head insertion hole 29 and the through hole 30 are larger than the width of the head 17 of the engagement protrusion 12 so that the head 17 can be inserted. In other words, in the present embodiment, the head hole 31 and the engagement hole 27 described above form a daruma hole 31.

  Further, the introduction port 32 formed by the other end opening of the introduction notch 28 (that is, the other end opening of the through hole 30) is positioned above the engagement hole 27, whereby the introduction port 32 and the engagement hole 27 are moved in the vertical direction. Are located at different positions. Therefore, when the neck 16 of the engagement protrusion 12 is inserted into the engagement hole 27 (that is, when the engagement protrusion 12 is engaged with the engagement hole 27 as described later), the first wall panel 2 moves backward. Attempts to prevent the neck portion 16 from hitting the edge of the engagement hole 27 can be prevented.

  When connecting the first wall panel 2 and the second wall panel 3, for example, as shown in FIGS. 1 and 2, the joint bracket 20 is attached to the second wall panel 3 erected on the floor pan 4, and this second wall panel 3 is attached. The first wall panel 2 is connected to the wall panel 3. Then, the first wall panel 2 is placed on the outer edge of the floor pan 4, and the first wall panel 2 is slightly inclined so as to be located rearward as it moves upward, and thereafter, as shown by the arrow in FIG. Wake up and stand up. As a result, the head 17 and neck 16 of the engaging projection 12 projecting from the upper part of the long hole 14 of the first wall panel 2 are the inlets formed in the outer edge piece 22 of the second wall panel 3 erected first. It is introduced into the head insertion hole 29 from the 32 side through the through hole 30 of the introduction notch 28. Next, the moving operation portion 13a of the moving member 13 protruding upward from the side frame portion 7 of the upright first wall panel 2 is driven downward with a hammer or the like. As a result, the head 17 and the neck 16 of the engaging protrusion 12 disposed in the head insertion hole 29 together with the moving member 13 move to the lower part of the long hole 14, and the neck 16 of the engaging protrusion 12 becomes the engaging hole 27. While being inserted, the head 17 is disposed on the back side (the side opposite to the first wall panel) of the outer edge piece 22, and the engagement protrusion 12 is engaged with the engagement hole 27. In this connected state, the neck portion 16 side of the head portion 17 (that is, the taper portion 18) abuts the hole edge portion of the engagement hole 27, and the hole edge of the engagement hole 27 is formed by the head portion 17 and the hole edge portion of the long hole 14. The part is pinched. The width of the lower portion 14b of the long hole 14 is preferably set to such a width that the neck portion 16 cannot be moved from the upper portion a of the long hole 14 to the lower portion 14b unless the moving member 13 is driven by a hammer or the like. In this case, the neck portion 16 of the engaging protrusion 12 can be held by the upper portion 14a of the long hole 14, and it is not necessary to support the moving member 13 with the hand or the like while moving upward in the connection operation.

  In this embodiment, since the head insertion hole 29 is formed as in the conventional example shown in FIGS. 8 and 9, the first wall panel 2 and the second wall panel 3 are connected in the same manner as in the conventional example. You can also. That is, in this case, the first wall panel 2 is moved outward on the side of the second wall panel 3 erected first, and the head 17 of the engaging protrusion 12 is moved from the head insertion hole 29 of the scoop hole 31. The engagement protrusion 12 may be moved downward with respect to the first wall panel 2 together with the moving member 13 after being inserted and disposed behind the outer edge piece 22.

  Further, as shown in FIG. 6, the second wall panel 3 folds the lower edge of the surface plate 5 to form the folded portion 34, and further folds the upper edge of the folded portion 34 to form the hook portion 35. It is erected on the floor pan 4 by hooking the portion 35 on the upright portion 36 raised from the outer edge of the floor pan 4 from above, but here the second connected to the first wall panel 2 as described above. When replacing the wall panel 3 with a new second wall panel, for example, the following is performed.

  In other words, the tip of the driver is hooked on the hooking hole 37 provided at the upper end of the moving member 13 to move the moving member 13 upward, whereby the neck 16 of the engaging protrusion 12 is inserted into the head of the notch 28 for introduction. The engagement protrusion 12 is disengaged from the engagement hole 27 by being positioned in the hole 29, and the engagement protrusion 12 is pulled out from the head insertion hole 29 by grasping both side ends of the second wall panel, The second wall panel 3 is lifted to remove the hooking portion 35 from the upright portion 36.

  Here, when the side wall portion of the second wall panel 3 on the first wall panel 2 side is gripped, a finger is inserted between the first wall panel 2 and the second wall panel 3, and the finger of the second wall panel 3 is inserted with this finger. If the side edge is gripped by this finger and the sharp edge sharpened as the free end of the outer edge piece 22 of the joint fitting 20 as shown in FIG. May hurt your finger. Therefore, the present embodiment has the following configuration to prevent this.

  That is, as shown in FIG. 4, in the place different from the introduction notch 28 in the outer edge piece portion 22 of the joint metal fitting 20 of the second wall panel 3, the protruding edge of the outer edge piece portion 22, which is a free end, extends from the base end portion. A finger insertion notch 38 is formed, and the inner portion of the finger insertion notch 38 is on the inner side of the outer surface of the attachment piece 21.

  When the second wall panel 3 is to be lifted when the second wall panel 3 is replaced by the above configuration, the side wall of the second wall panel 3 is pushed backward as shown in FIG. A finger inserted from between the wall panels 3 is passed through the finger insertion notch 38, and the corner portion composed of the attachment piece portion 21 and the inner piece portion 23 of the joint fitting 20 can be grasped by this finger. Therefore, it is not necessary to grip the tip of the outer edge piece 22 with a finger, and the finger is not damaged at the tip of the outer edge piece 22.

Next, among the bathroom wall panels 1a and 1b shown in FIG. 2, the bathroom wall panel 1a ₁ (that is, the first wall panel 2) and the bathroom wall panel 1a ₂ (that is, the second wall) that is linearly adjacent to the bathroom wall panel 1a 1 (that is, the second wall). A connection structure with the bathroom wall panel 1a) opposite to the panel 3 will be described. Hereinafter, the bathroom wall panel 1a ₂ is defined as a first wall panel 2 ', and the bathroom wall panel 1a ₁ is defined as a second wall panel 3'.

  As in the case of the first wall panel 2, the second wall panel 3 ′ side is formed on the outer surface of the side frame portion 7 a that forms the side end surface of the first wall panel 2 ′ on the second wall panel 3 ′ side. An engaging protrusion 12 is provided to protrude toward the end. That is, the engaging protrusion 12 is provided on the moving member 13 housed in the side frame portion 7a similarly to the engaging protrusion 12 of the first wall panel 2, and is movable in the vertical direction.

  Further, the outer edge piece portion 22 composed of the outer surface portion of the side frame portion 7b on the first wall panel 2 'side of the second wall panel 3' (that is, the first wall panel 2) is composed of the first wall panel 2 'and the second wall panel. It faces the outer surface of the side frame portion 7a of the first wall panel 2 'when 3' is connected. Similar to the outer edge piece portion 22 of the second wall panel 3, the engagement hole 27 and the outer edge piece portion 22 of the second wall panel 3 ′ are located at positions corresponding to the engagement protrusions 12 of the first wall panel 2 ′. An introduction notch 28 is formed in communication with. A head passage hole 40 that is continuous with the introduction port 32 of the introduction notch 28 is formed at the outer end of the rear surface portion of the side frame portion 7b (that is, the portion protruding inward from the rear edge of the outer edge piece portion 22). The head passage hole 40 is larger than the head 17 of the engaging projection 12 and can be inserted through the head 17. Therefore, when the neck 16 of the engaging projection 12 of the first wall panel 2 'is introduced from the introduction port 32 side of the second wall panel 3' into the introduction notch 28 as described later, the engaging projection 12 The head portion 17 can be inserted into the side frame portion 7b through the head passage hole 40 without interfering with the rear surface portion of the side frame portion 7b.

  When connecting the first wall panel 2 ′ and the second wall panel 3 ′, for example, the first wall panel 2 ′ is placed on the outer edge of the floor pan 4, and the first wall panel 2 ′ is placed on the upper side of the bathroom. Slightly incline so as to be located outside, and then raise the upper part forward to stand. As a result, the head 17 and neck 16 of the engaging projection 12 projecting from the upper part of the long hole 14 of the first wall panel 2 'are formed on the outer edge piece 22 of the second wall panel 3' standing upright. It is introduced into the head insertion hole 29 from the opening 32 and the head passage hole 40 through the through hole 30 of the introduction cutout 28. Hereinafter, similarly to the first wall panel 2 and the second wall panel 3, the upper end portion of the moving member 13 protruding upward from the side frame portion 7 of the first wall panel 2 ′ standing is driven downward with a hammer or the like, As a result, the neck 16 of the engaging protrusion 12 is inserted into the engaging hole 27, and the head 17 is disposed on the back side of the outer edge piece 22 to engage the engaging protrusion 12 with the engaging hole 27.

Moreover, among the bathroom wall panels 1 shown in FIG. 2, the bathroom wall panel 1a shown in 1a ₂ and the bathroom wall panel 1b shown in 1b ₂ adjacent to this at a right angle in plan view are the first wall panel 2 and the second wall. Since the connection structure is the same as that of the panel 3, detailed description of the connection structure is omitted.

  As described above, in the present invention, the engagement protrusion 12 is engaged when the engagement protrusion 12 of the first wall panel 2 (or 2 ') is engaged with the engagement hole 27 of the second wall panel 3 (or 3'). Twelve neck portions 16 can be introduced into the engagement holes 27 through the introduction cutouts 28. That is, in the present invention, the neck 16 of the engaging protrusion 12 is introduced into the introduction notch 28 by moving the first wall panel 2 (or 2 ') in the thickness direction by raising it forward as described above. The neck portion 16 can be introduced into the engagement hole 27. Therefore, the first wall panel 2 (or 2 ') can be moved in the thickness direction without largely moving toward the outside as in the prior art, and the neck 16 of the engagement protrusion 12 can be inserted into the engagement hole 27. Even if there is a bathroom wall panel 1 or a building wall that is erected on the outer side opposite to the second wall panel 3 (or 3 ') of the first wall panel 2 (or 2') The head 17 of the engagement protrusion 12 can be easily inserted into the engagement hole 27 by the method.

It is an enlarged perspective view of the 1st wall panel 2 and the 2nd wall panel 3 which show an example of embodiment of this invention and show the state before inserting an engaging protrusion into an engaging hole. It is a top view of the connection structure same as the above. It is the enlarged view seen from the back of the 2nd wall panel 3 of FIG. It is a rear view which shows the notch vicinity for finger insertion of a joint metal fitting same as the above. It is a top view which shows the state which inserted the finger | toe into the notch for finger insertion same as the above, and grabbed the side edge part of the 2nd wall panel. It is a principal part expanded side sectional view which shows the state which stood the bathroom wall panel 1b in the floor pan. It is a principal part enlarged plan view which shows the connection structure of 1st wall panel 2 'and 2nd wall panel 3'. It is a top view which shows the connection structure of the conventional bathroom wall panel. It is an expansion perspective view of the 1st wall panel and the 2nd wall panel which show a state before inserting the same engagement protrusion into an engagement hole. It is explanatory drawing of a reference example.

Explanation of symbols

2 First Wall Panel 3 Second Wall Panel 12 Engagement Protrusion 16 Neck 17 Head 21 Outer Edge Piece 27 Engagement Hole 28 Introduction Notch 32 Introduction Port

Claims (3)

One of the adjacent bathroom wall panels is the first wall panel and the other is the second wall panel, and the engaging protrusion protrudes outward from the side end surface of the first wall panel. Forming a head portion wider than the neck portion formed on the proximal end side from the distal end portion of the first wall panel, projecting an outer edge piece portion facing the side end surface of the first wall panel from the side edge of the second wall panel, The outer edge piece is narrower than the head of the engaging protrusion and wider than the neck, and wider than the neck and one end communicates with the engaging hole and the other end is the protruding end of the outer edge piece. An introduction notch that opens from the edge is formed, the introduction port formed of the other end opening of the introduction notch and the engagement hole are arranged at different positions in the vertical direction, and the neck portion of the engagement protrusion is inserted into the engagement hole. the first wall panel of the outer piece by placing the head on the opposite side, the coupling structure der bathroom wall panels engage the engaging projection with the engaging hole The side wall surface of the first wall panel on the second wall panel side is constituted by a side piece projecting from the side edge of the first wall panel toward the back, and an inner space formed inside the side piece. A movable member that is movable in the vertical direction is provided at the location, an engaging projection is provided to project outward from the moving member, and a sliding portion is provided on the base end side of the neck of the engaging projection, The sliding portion of the engaging protrusion is housed in a long hole formed in the side piece of the first wall panel so as to be slidable in the vertical direction, and the neck and head of the engaging protrusion are from the side piece. And a moving operation portion for moving the moving member in the vertical direction together with the engaging protrusion at the upper end portion of the moving member, and the upper end of the engaging hole communicates with one end of the introduction notch. The connection structure of the bathroom wall panel , wherein the neck of the engaging protrusion is dropped into the engaging hole and engaged . The introduction notch formed in the outer edge piece of the second wall panel has a head insertion hole that is larger than the head of the engaging projection and can be inserted through the head, and becomes a free end of the outer edge piece. The connecting structure for a bathroom wall panel according to claim 1, wherein a notch for inserting a finger from a protruding end edge to a base end portion is formed. The first wall panel and the second wall panel are adjacent to each other at a right angle in a plan view, and the outer edge piece projects outward from the second wall panel. The connection structure of the bathroom wall panel of 2.

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