Hand wash basin
The hand washing basin with a universal mounting bracket simplifies installation and renovation by accommodating multiple bowl body types, enhancing flexibility and reducing environmental impact.
Patent Information
- Application Number
- JP2025001875U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-08-06
- Estimated Expiration
- 2035-06-09
AI Technical Summary
Conventional wall-mounted hand washing basins require multiple types of mounting brackets to match different bowl bodies, leading to inefficient installation and renovation processes, and lack flexibility in responding to sudden changes in bowl body type or orientation.
A hand washing basin design that uses a common mounting bracket compatible with multiple types of bowl bodies, featuring a wall-mounted surface portion and a support surface portion that secures the bowl body from below, allowing easy attachment and detachment without changing the bracket.
Enables flexible installation and renovation by using a single mounting bracket for various bowl bodies, improving installation ease, productivity, and reducing environmental impact by minimizing the need for multiple bracket types.
Smart Images

Figure 0003252322000001_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a wall-mounted hand washing basin that can be attached directly to the wall of a building. [Background technology]
[0002] Known hand washing basins installed in toilets and other facilities include built-in or semi-built-in types that are embedded in the countertop, freestanding types that are placed on the countertop, and wall-mounted types that are attached directly to the wall of a building.
[0003] Wall-mounted hand washing basins typically come with dedicated mounting brackets that are made to match the structure, size, weight, etc. of the bowl body. Summary of the Invention [Problem to be solved by the invention]
[0004] However, depending on the situation at the construction site where the new hand basin is being installed, the type of bowl body to be installed may be suddenly changed, and in this case, the mounting bracket must also be changed to match the change in bowl body. In order to immediately respond to such sudden changes, it is necessary to prepare multiple types of hand basins and the corresponding mounting brackets in advance. Furthermore, even in hand basin renovation work, there is a problem in that the mounting bracket must be replaced when the bowl body is replaced. As such, conventional wall-mounted hand basins have room for improvement in terms of installation.
[0005] Therefore, the object of this invention is to provide a method for improving the installation ease of wall-mounted hand washing basins. [Means for solving the problem]
[0006] The present invention is a hand washing basin that can be attached to the wall of a building, and comprises multiple types of bowl bodies with different specifications and mounting brackets that can be used for all of the multiple types of bowl bodies, and the mounting brackets comprise a wall-mounted surface portion that is fixed to the wall surface, and a support surface portion that extends forward from the lower part of the wall-mounted surface portion and supports the bowl body from below, and each of the bowl bodies is configured to be fixed to the upper surface of the support surface portion while being placed against the wall surface via the wall-mounted surface portion. [Effects of the Invention]
[0007] The hand basin of this invention can be mounted to a wall using a common mounting bracket, regardless of the type of bowl body. Therefore, even if the size of the bowl body or the orientation of the faucet needs to be changed at the construction site, there is no need to change the mounting bracket; only the bowl body needs to be changed. Furthermore, even when renovating a hand basin, there is no need to replace the mounting bracket; only the bowl body needs to be replaced. In this way, this invention makes it possible to improve the ease of installation of wall-mounted hand basins. Furthermore, compared to manufacturing different mounting brackets for each type of bowl body, it is possible to improve productivity and reduce environmental impact. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is a side view of a hand washing basin according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. 2 is a perspective view showing the mounting bracket of the hand washing basin. [Figure 4] 2 is a cross-sectional view taken along line AA in FIG. 1, showing the internal structure of the hand washing basin. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] 6 is an enlarged cross-sectional view of the attachment structure of the hand washing basin taken along line BB in FIG. 5. FIG. [Figure 8]FIG. 2 is a front view similar to FIG. 1, showing an example in which a bowl body with different specifications is used. DETAILED DESCRIPTION OF THE INVENTION
[0009] An embodiment of the present invention will now be described with reference to the accompanying drawings. Note that the following description is merely exemplary in nature and is not intended to limit the present invention, its application, or its uses.
[0010] In addition, in the attached drawings, the arrow X direction indicates the horizontal direction (left-right direction) as seen by a user facing the hand washing basin, the arrow Y direction indicates the front-to-back direction as seen by the same user (the user side is the "front side" and the side facing the building wall is the "rear side"), and the arrow Z direction indicates the up-down direction.
[0011] As shown in the side view of Figure 1 and the front view of Figure 2, a hand washing basin 1 according to one embodiment of the present invention is a so-called wall-mounted type. The bowl body 100 of the hand washing basin 1 is attached to a wall W1 of a building (e.g., a toilet) via a mounting bracket 10. The specific configurations of the mounting bracket 10 and the bowl body 100 will be described later.
[0012] Hand washing basin 1 is equipped with multiple types of bowl bodies with different specifications (e.g., size, structure, color, material, etc.). Specific examples of the multiple types of bowl bodies include bowl body 100 shown in Figures 1 and 2, as well as bowl body 200 (see Figure 8(a)), which is configured so that faucet 40 is positioned on the opposite side (left side) in the horizontal direction X, and bowl body 300 (see Figure 8(b)), which has an expanded dimension in the horizontal direction X.
[0013] Although the bowl bodies 100, 200, and 300 have other common configurations, they may have further differences. Also, the hand washing basin 1 may be provided with another type of bowl body (not shown) in addition to or instead of the bowl bodies 100, 200, and 300.
[0014] In the hand washing basin 1 of this embodiment, one bowl body (for example, the above-mentioned bowl bodies 100, 200, 300) arbitrarily selected from the plurality of types of bowl bodies described above is attached to the wall surface W1 via the mounting bracket 10.
[0015] Next, the configuration of the mounting bracket 10 will be specifically described with reference mainly to the perspective view shown in FIG.
[0016] Mounting bracket 10 is a component commonly used for all of the above-described types of bowl bodies. Mounting bracket 10 is formed, for example, by bending a single sheet of plate material. As a result, mounting bracket 10 has a uniform thickness (for example, 2 mm) throughout. Mounting bracket 10 is made of, for example, metal. More specifically, the material of mounting bracket 10 is stainless steel, but is not limited to this and may be, for example, steel, aluminum, brass, or zinc alloy.
[0017] Mounting bracket 10 includes a wall-mounting surface portion 2 that is fixed to wall surface W1, and a support surface portion 4 that extends forward from the lower portion of wall-mounting surface portion 2 and supports a bowl body (for example, the above-mentioned bowl bodies 100, 200, 300) from below. In this way, mounting bracket 10 is formed generally in an L-shape overall.
[0018] The mounting bracket 10 also includes an inclined surface 6 that extends diagonally downward from the rear edge of the support surface 4 toward the rear to the lower edge of the wall fixing surface 2. In other words, the lower edge of the wall fixing surface 2 is located below the support surface 4, and the rear edge of the support surface 4 is connected to the lower edge of the wall fixing surface 2 via the inclined surface 6. In this way, the rear end of the mounting bracket 10 is bent downward in a crank shape, which improves the mounting strength to the wall W1 compared to a simple L-shaped bracket.
[0019] The mounting bracket 10 has a constant horizontal X dimension (e.g., 140 mm) across the support surface portion 4, the inclined surface portion 6, and the wall-mounted surface portion 2. The front-to-back Y dimension of the support surface portion 4 (e.g., 130 mm) is larger than the up-to-down Z dimension of the wall-mounted surface portion 2 (e.g., 90 mm). Furthermore, the support surface portion 4 is smaller in the front-to-back Y dimension than the bottom surface of any type of bowl body, and the wall-mounted surface portion 2 is smaller in the up-to-down Z dimension than the back surface portion 14 of any type of bowl body. An acute inclination angle (e.g., 45°) is formed between the inclined surface portion 6 and the wall-mounted surface portion 2. The lower edges of the inclined surface portion 6 and the wall-mounted surface portion 2 are located lower than the underside of the support surface portion 4 by, for example, 10 mm.
[0020] The wall fixing surface 2 has a plurality of (for example, four) screw insertion holes 3 spaced apart from one another. Each screw insertion hole 3 is provided, for example, near a corner of the wall fixing surface 2. The wall fixing surface 2 is fixed to the wall W1 by screws 7 (see FIG. 1) that are inserted into the screw insertion holes 3 from the front. The screws 7 are, for example, countersunk head tapping screws.
[0021] Screw insertion hole 3 is preferably configured as a countersunk hole. This allows the head of screw 7 to be accommodated within screw insertion hole 3, so that back surface portion 14 of bowl body (e.g., bowl bodies 100, 200, 300 described above) can be pressed tightly against wall surface fixing surface portion 2 without interfering with the head of screw 7 (see FIG. 1).
[0022] A plurality of (for example, four) bolt insertion holes 5 are provided at intervals in the support surface portion 4. Each bolt insertion hole 5 is provided, for example, near a corner of the support surface portion 4. The support surface portion 4 is fixed to the bottom surface of the bowl main body (for example, the above-mentioned bowl main body 100, 200, 300) by a bolt 8 (see FIGS. 1 and 2) that is inserted into the bolt insertion holes 5 from below. As the bolt 8, for example, an ultra-low head bolt is used.
[0023] Next, the configuration of bowl body 100 will be specifically described mainly with reference to the cross-sectional view shown in FIG. 4 (cross-sectional view taken along line AA in FIG. 1), the plan view shown in FIG. 5, and the bottom view shown in FIG.
[0024] The bowl body 100 includes an outer peripheral frame 12 that is open in the vertical direction Z, and a core plate 20 that is fixed to the inside of the outer peripheral frame 12.
[0025] The outer peripheral frame 12 forms the outer shape (specifically, the outline of a rectangular parallelepiped) of the bowl body 100. The outer peripheral frame 12 is formed from a rectangular plate material and has a uniform thickness (e.g., 1.5 mm) around the entire periphery. The outer peripheral frame 12 is made of, for example, metal. More specifically, the material of the outer peripheral frame 12 is stainless steel, but is not limited to this.
[0026] The peripheral frame 12 includes a front portion 13 facing the user, a back portion 14 facing the wall W1, and a pair of side portions 15 and 16 connecting the front portion 13 and the back portion 14.
[0027] The outer frame 12 has a constant vertical Z dimension (e.g., 100 mm) around its entire periphery. In this type of bowl body 100, the horizontal X dimension of the front portion 13 and the rear portion 14 is 350 mm, and the front-rear Y dimension of the side portions 15, 16 is 150 mm.
[0028] The core plate 20 provides various functions of the bowl body 100. The core plate 20 is formed, for example, by bending a single sheet of plate material and has a uniform thickness (for example, 1.5 mm) throughout. The core plate 20 is made of, for example, metal. More specifically, the material of the core plate 20 is stainless steel, but is not limited to this. The peripheral edge of the core plate 20 is fixed to the inner peripheral surface of the outer peripheral frame 12, for example, by welding.
[0029] The core plate 20 is formed in a stepped shape that gradually becomes higher toward one side in the horizontal direction X (the right side in FIG. 4) (see FIG. 4 in particular). This divides the core plate 20 into a faucet support section 21, a running water section 22, and a drain section 23, which are arranged at different heights. The faucet support section 21, the running water section 22, and the drain section 23 are arranged side by side in the horizontal direction X so that their heights gradually decrease in this order.
[0030] Faucet support part 21 has a faucet hole 24, which allows faucet 40 to be passed through faucet hole 24 and attached to faucet support part 21. Running water part 22 is formed so as to slope downward from faucet support part 21 towards drain part 23, which allows water discharged from faucet 40 to flow smoothly along running water part 22 to drain part 23. Drain part 23 has a drain outlet 25, which allows strainer plug 50 to be passed through drain outlet 25 and attached to drain part 23.
[0031] As shown in Figures 4 and 5, bowl body 100 is provided with strainer cover 26 that is attached to drain portion 23 so as to cover strainer plug 50. Strainer cover 26 is formed, for example, by bending a single sheet of plate material and has a uniform thickness (e.g., 1.5 mm) throughout. Strainer cover 26 is made of, for example, metal. More specifically, the material of strainer cover 26 is stainless steel, but is not limited to this.
[0032] The strainer cover 26 can be attached by any engagement means in a floating state above the drainage section 23. The top surface of the strainer cover 26 has an outline that is slightly smaller than the drainage section 23 and is inclined to fit along the top surface of the running water section 22. This allows water flowing down the running water section 22 to smoothly flow down into the drainage section 23 through the gaps around the strainer cover 26.
[0033] As shown in FIGS. 4 and 6, bowl body 100 further includes a fixed portion 30 that can be fixed to support surface portion 4 of mounting bracket 10.
[0034] The fixed portion 30 has a plate portion 32 that is placed on the upper surface of the support surface portion 4, a plurality of (e.g., four) bolt insertion holes 34 formed in the plate portion 32, and a plurality of (e.g., four) nuts 36 that are fixed to the upper surface of the plate portion 32 at positions corresponding to the bolt insertion holes 34.
[0035] Plate portion 32 is provided below running water portion 22, spanning front portion 13 and back portion 14 of outer periphery frame 12. The lower surface of plate portion 32 is disposed along the lower edge of outer periphery frame 12. As a result, plate portion 32 forms the bottom surface of bowl body 100.
[0036] The plate portion 32 has a thickness (e.g., 2 to 3 mm) greater than those of the outer peripheral frame 12 and the core plate 20. The plate portion 32 is made of, for example, a metal. More specifically, the material of the plate portion 32 is stainless steel, but is not limited to this. The front and rear edges of the plate portion 32 are fixed to the inner peripheral surface of the outer peripheral frame 12 by, for example, welding.
[0037] Each bolt insertion hole 34 is provided, for example, in the vicinity of a corner of the plate portion 32. The bolt insertion holes 34 in the plate portion 32 are arranged to correspond to the bolt insertion holes 5 in the support surface portion 4 of the mounting bracket 10. Each nut 36 is fixed to the upper surface of the plate portion 32 at the periphery of the bolt insertion hole 34, for example, by welding.
[0038] Such fixed part 30 is provided not only on the illustrated bowl body 100 but also on the bottom surface of all types of bowl bodies (see Figures 8(a) and 8(b)). In all types of bowl bodies, fixed part 30 is provided using the space below running water part 22, so interference with water supply pipes and drain pipes can be reliably avoided.
[0039] FIG. 7 is an enlarged cross-sectional view of the mounting structure of the hand-washing basin 1 taken along line BB in FIG.
[0040] As shown in Figure 7, hand washing basin 1 is attached to wall surface W1 by fixing fixed portion 30 of bowl body 100 to mounting bracket 10, which is fixed to wall surface W1. More specifically, bowl body 100 is fixed to the upper surface of support surface portion 4 of mounting bracket 10, with mounting bracket 10 abutting wall surface W1 via wall fixing surface portion 2 of mounting bracket 10.
[0041] The bolt 8 used for this fixation is inserted from below through the bolt insertion hole 5 (see FIG. 3) in the support surface portion 4 of the mounting bracket 10 and the bolt insertion hole 34 (see FIGS. 4 and 6) in the fixed portion 30, and is screwed into the nut 36 of the fixed portion 30. By tightening the bolt 8 against the nut 36, the bowl body 100 is securely fixed to the mounting bracket 10.
[0042] As described above, the bottom surface of each of the multiple types of bowl bodies is provided with a common fixed portion 30. Therefore, bowl bodies of types other than bowl body 100 shown in Fig. 7 (for example, bowl body 200 shown in Fig. 8(a) and bowl body 300 shown in Fig. 8(b)) can also be fixed to the same mounting bracket 10 in the same manner.
[0043] Therefore, the hand washing basin 1 according to this embodiment can be attached to the wall surface W1 using the same mounting bracket 10, regardless of the type of bowl body (for example, the above-mentioned bowl bodies 100, 200, 300). Therefore, even if the size of the bowl body or the orientation of the faucet 40 needs to be changed at the construction site, there is no need to change the mounting bracket 10; only the bowl body needs to be changed. Furthermore, even in renovation work on the hand washing basin 1, there is no need to replace the mounting bracket 10; only the bowl body needs to be replaced. In this way, according to this embodiment, it is possible to improve the ease of installation of wall-mounted hand washing basins.
[0044] Furthermore, in the hand washing basin 1 of this embodiment, the mounting bracket 10 is standardized to accommodate any type of bowl body, which makes it possible to improve productivity and reduce environmental impact compared to when different mounting brackets are manufactured for each type of bowl body.
[0045] 7 to 9, mounting bracket 10 has a shape that conforms to the bowl body, regardless of the type of bowl body (for example, bowl bodies 100, 200, and 300 described above), so that it is completely hidden behind back surface 14 and below the bottom surface. Therefore, regardless of the type of bowl body that is installed, mounting bracket 10 is not visible to the user, allowing hand washing basin 1 to exhibit its attractive design.
[0046] Furthermore, the lower rear end of the mounting bracket 10 is reinforced by a crank shape including the inclined surface portion 6 as described above, thereby increasing the mounting strength of the hand washing basin 1 to the wall surface W1.
[0047] The present invention has been explained above using the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, and the detailed configuration of the bowl body and mounting hardware of the hand washing basin can be changed as appropriate as long as it does not deviate from the scope of the utility model registration claims. [Explanation of symbols]
[0048] 1 hand washing basin 2 Wall fixed surface part 3 Screw insertion holes 4 Support surface part 5 Bolt insertion holes 6 Slope section 7 screws 8 volts 10 Mounting bracket 12 Periphery frame 13 Front 14 Back section 15,16 Side part 20 core plates 21 Faucet support 22 Flowing water section 23 Drainage section 30 Fixed part (bottom part) 32 Plate section 34 Bolt insertion hole 36 Nut 100 Bowl body 200 Bowl body 300 Bowl body W1 Building wall
Claims
1. A hand washing basin attached to the wall of a building, There are several types of bowl bodies with different specifications, and a mounting bracket that can be commonly used with any of the plurality of types of bowl bodies, The mounting bracket includes a wall surface fixing surface portion fixed to the wall surface, and a support surface portion extending forward from a lower portion of the wall surface fixing surface portion and supporting the bowl body from below, Each of the bowl bodies is configured to be fixed to the upper surface of the support surface portion in a state in which it is abutted against the wall surface via the wall surface fixing surface portion. A hand washing basin characterized by:
2. A common fixed portion that can be fixed to the support surface portion is provided on the bottom surface portion of each of the bowl bodies.
2. A hand washing basin according to claim 1.
3. The fixed portion has a plate portion that is placed on the upper surface of the support surface portion, a plurality of bolt insertion holes formed in the plate portion, and a plurality of nuts that are fixed to the upper surface of the plate portion at positions corresponding to the bolt insertion holes, and is configured to be fixed to the support surface portion by bolts that are inserted into the bolt insertion holes and screwed into the nuts.
3. A hand washing basin according to claim 2.
4. The mounting bracket has a shape that conforms to the bowl body so as to be hidden behind and below any of the plurality of types of bowl bodies.
3. A hand washing basin according to claim 2.
5. The mounting fixture further includes an inclined surface portion extending obliquely downward rearward from the rear edge portion of the support surface portion to the lower edge portion of the wall surface fixing surface portion. A hand washing basin according to any one of claims 1 to 4.