Kitchen unit
The kitchen unit with adjustable components and drainage features addresses layout changes and cabinet width variations, optimizing drainage without underfloor piping renovation.
Patent Information
- Application Number
- JP2023223570
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-07-10
AI Technical Summary
Existing kitchen units do not easily accommodate changes in kitchen layout, such as from wall-mounted to island type, and require significant renovation work to adjust the underfloor piping, especially in shared spaces like apartment buildings, and they lack flexibility in accommodating kitchen cabinets of various widths.
A kitchen unit with adjustable side plates, top plates, and connecting boxes that allow for varying widths, along with pipe insertion and extraction holes, enabling flexible installation and drainage adjustment without altering the underfloor piping position.
Enables easy adaptation to different kitchen cabinet widths and layout changes, optimizing drainage without renovating underfloor piping, enhancing layout flexibility during relocation.
Smart Images
Figure 2025105194000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a kitchen unit that can optimize the drainage area around the sink when installing a system kitchen.
Background Art
[0002] Conventionally, there is a kitchen unit of this type described in the following Patent Document 1 (Japanese Patent Application Laid-Open No. 2006-6703). The prior art is configured as follows. A kitchen unit that covers a piping space provided between a kitchen cabinet and a wall surface behind the cabinet, the kitchen unit having left and right side plates that extend upward from the floor surface on which the cabinet is installed substantially on the same plane as the side surface of the cabinet and exceeding the upper surface of the cabinet, a top plate installed between the upper end portions of the left and right side plates along the wall surface, and a front plate placed on the upper end of the rear portion of the cabinet and covering the front surfaces of the left and right side plates between the upper end of the rear portion and the top plate. The front plate is one that can be cut to change its height and is adjusted to the height for covering the front surface and used.
[0003] According to this prior art, it is said that a piping space unit that is easy to adjust dimensions while maintaining design quality can be realized at a construction site during kitchen installation or renovation.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, the above prior art does not address the significant change in the kitchen layout during renovation, such as from a wall-mounted type to an island type. Even if such a significant layout change were possible, major renovation work would be required, such as changing the extraction position of the underfloor piping of the external drainage section to the floor surface. Here, when the household renovating the kitchen is in an apartment building, since the external drainage section corresponds to the shared area, it is difficult to carry out the renovation work of changing the extraction position of the underfloor piping to the floor surface, and there may arise a problem that the layout change during renovation is restricted. In addition, the above prior art does not enable easy adjustment of the width of the kitchen unit according to the width of the kitchen cabinet. In order to accommodate kitchen cabinets of various widths, there is also a problem that long parts of various sizes (widths) corresponding to the width of the kitchen cabinet must be stored and managed as inventory. Therefore, the main object of the present invention is to provide a kitchen unit that can easily accommodate kitchen cabinets of various widths and can optimize the drainage around the sink without changing the extraction position of the underfloor piping of the external drainage section to the floor surface when relocating the kitchen during renovation or the like.
Means for Solving the Problems
[0006] To achieve the above object, the present invention is configured as follows for a kitchen unit 10 attached to the back of a kitchen cabinet K equipped with a sink S and a stove C, as shown in FIGS. 1 to 2, for example. That is, a pair of left and right side plates 12 extending from the floor surface where the kitchen cabinet K is installed beyond the upper surface of the kitchen cabinet K, a bottom plate 14 installed between the lower ends of the side plates 12, a top plate 16 installed between the upper ends of the side plates 12, and a back plate 20 covering the plane on the side fixed to the back of the kitchen cabinet K. A sink-side box 10A fixed to the end on the sink S side in the width direction on the back of the kitchen cabinet K, a pair of left and right side plates 22 extending from the floor surface where the kitchen cabinet K is installed beyond the upper surface of the kitchen cabinet K, a bottom plate 24 installed between the lower ends of the side plates 22, a top plate 26 installed between the upper ends of the side plates 22, and a back plate 30 covering the plane on the side fixed to the back of the kitchen cabinet K. A stove-side box 10B fixed to the end on the stove C side in the width direction on the back of the kitchen cabinet K, and a bottom plate 32 installed between the lower ends of the side plate 12 of the sink-side box 10A and the side plate 22 of the stove-side box 10B, a top plate 34 installed between the upper ends of the side plate 12 of the sink-side box 10A and the side plate 22 of the stove-side box 10B, and a back plate 38 covering the plane on the side fixed to the back of the kitchen cabinet K. It is provided with a box connecting portion 10C that is length-adjusted to fill the gap between the sink-side box 10A and the stove-side box 10B on the back of the kitchen cabinet K and connects the two. An opening 20a leading to the drain outlet at the lower part of the sink S is provided at the lower part of the back plate 20 of the sink-side box 10A. Also, pipe insertion holes 12a and 22a formed as long holes are provided at the lower parts of the side plate 12 of the sink-side box 10A and the side plate 22 of the stove-side box 10B facing the box connecting portion 10C. Further, a pipe extraction hole 40 for taking out the underfloor pipe W is drilled in at least one of the bottom plate 14 of the sink-side box 10A and the bottom plate 24 of the stove-side box 10B.
[0007] In the present invention, since the box connecting portion 10C that fills the gap between the sink-side box 10A and the stove-side box 10B on the back surface of the kitchen cabinet K is adjustable in length, it can correspond to kitchen cabinets K of various widths. Further, since the pipe insertion holes 12a and 22a formed as long holes are provided at the lower parts of the side plates 12 of the sink-side box 10A and the side plates 22 of the stove-side box 10B facing the box connecting portion 10C, when using an extension pipe L when connecting the drain outlet of the sink S and the underfloor pipe W as described later, the gradient (inclination) necessary for draining the extension pipe L can be ensured.
[0008] In the present invention, it is more preferable to attach the counter panel 42 from the upper surface of the outer longitudinal end of the top plate 16 in the sink-side box 10A to the upper surface of the outer longitudinal end of the top plate 26 in the stove-side box 10B. In this case, the upper surface of the kitchen unit 10 can be suitably used as a kitchen counter.
[0009] Further, in the present invention, when drilling the pipe extraction hole 40 in the bottom plate 24 of the stove-side box 10B and inserting the extension pipe L that connects the drain outlet of the sink S and the underfloor pipe W into the pipe insertion holes 12a and 22a, it is preferable to provide a support member 44 that supports the extension pipe L so that it has a downward gradient from the drain outlet of the sink S toward the underfloor pipe W. In this case, the gradient (inclination) necessary for draining the extension pipe L can be stably maintained.
[0010] Furthermore, in the present invention, it is preferable to attach a front decorative panel 46 to the surfaces of the sink-side box 10A, the stove-side box 10B, and the box connecting portion 10C. In this case, when reforming a wall-mounted kitchen layout, it becomes possible to also correspond to an island layout (see FIG. 3).
Advantages of the Invention
[0011] According to the present invention, it is possible to easily accommodate kitchen cabinets of various widths, and when relocating the kitchen during renovation or the like, it is possible to optimize the drainage around the sink without changing the extraction position of the underfloor piping of the external drainage part to the floor surface. It is possible to provide a kitchen unit.
Brief Description of the Drawings
[0012]
Figure 1
Figure 2
Figure 3
Embodiments for Carrying Out the Invention
[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a kitchen unit 10 according to an embodiment of the present invention. Further, FIG. 2 is a view showing a kitchen unit 10 according to an embodiment of the present invention, FIG. 2A is a plan view, FIG. 2B is a front view with the front decorative panel 46 removed, and FIG. 2C is a right side view respectively. As shown in these figures, the kitchen unit 10 of the present embodiment is attached and used on the back of a kitchen cabinet K of a so-called system kitchen equipped with a sink S and a stove C, and generally includes a sink side box 10A, a stove side box 10B, and a box connecting portion 10C.
[0014] The sink-side box 10A is a part fixed to the widthwise sink S-side end of the back of the kitchen cabinet K. More specifically, it is fixed at the widthwise sink S-side end of the back of the kitchen cabinet K such that their side surfaces are flush with each other (see Fig. 2). It is composed of a pair of left and right side plates 12 extending from the floor surface where the kitchen cabinet K is installed and exceeding the upper surface of the kitchen cabinet K, a bottom plate 14 installed between the lower ends of the side plates 12, a top plate 16 installed between the upper ends of the side plates 12, a shelf plate 18 installed between the side plates 12 as needed at a height position substantially the same as the upper surface of the kitchen cabinet K, and a back plate 20 covering the entire plane of the side fixed to the back of the kitchen cabinet K. The side plates 12, bottom plate 14, top plate 16, shelf plate 18, and back plate 20 constituting the sink-side box 10A are preferably formed of wood such as solid wood or laminated wood, or wood-based materials such as plywood, LVL (Laminated Veneer Lumber), PB (Particleboard), OSB (Oriented Strand Board), MDF, and HDF (high-density fiberboard).
[0015] Here, among the above side plates 12, a pipe insertion hole 12a formed as a long hole is provided in the lower part of the side plate 12 facing the box connection part 10C described later. Also, an opening 20a leading to the drain outlet under the sink S is provided in the lower part of the back plate 20. Further, a pipe extraction hole for extracting the underfloor pipe W can be drilled in the bottom plate 14 as needed.
[0016] A kitchen fixing bar 48 is attached at a position directly below the shelf plate 18 on the back plate 20, and a light-blocking bar 50 is attached to the lower part of the front side of the bottom plate 14 as needed.
[0017] And on the front side of this sink-side box 10A, if necessary, a front decorative panel 46 that covers the portion below the shelf board 18, more specifically, the portion from the shelf board 18 to the bottom board 14, is attached. Note that this front decorative panel 46 is also preferably formed of wood such as solid wood or glued laminated timber, or wood-based materials such as plywood, LVL (Laminated Veneer Lumber), PB (Particleboard), OSB (Oriented Strand Board), MDF, HDF (high-density fiberboard). Also, for attaching the front decorative panel 46 to the sink-side box 10A, known panel connectors can be used. In the illustrated embodiment, since the light-shielding bar 50 is attached to the lower side of the bottom board 14, the front decorative panel 46 has a height from the bottom board 14 to the shelf board 18. However, if the light-shielding bar 50 is not provided, the height of this front decorative panel 46 may be set to be from the floor surface to the shelf board 18. Also, when the shelf board 18 is not attached, it is preferable to cover the entire front of the sink-side box 10A with the front decorative panel 46.
[0018] The stove-side box 10B is a part fixed to the widthwise stove C-side end of the back of the kitchen cabinet K. More specifically, it is fixed at the widthwise stove C-side end of the back of the kitchen cabinet K such that their side faces are flush (see Fig. 2). It is composed of a pair of left and right side plates 22 extending from the floor surface where the kitchen cabinet K is installed and exceeding the upper surface of the kitchen cabinet K, a bottom plate 24 installed between the lower ends of the side plates 22, a top plate 26 installed between the upper ends of the side plates 22, a shelf plate 28 installed between the side plates 22 as needed at a height position substantially the same as the upper surface of the kitchen cabinet K, and a back plate 30 covering the entire plane of the side fixed to the back of the kitchen cabinet K. The side plates 22, bottom plate 24, top plate 26, shelf plate 28, and back plate 30 constituting the stove-side box 10B are preferably formed of wood such as solid wood or glued laminated timber, or wood-based materials such as plywood, LVL (Laminated Veneer Lumber), PB (Particleboard), OSB (Oriented Strand Board), MDF, and HDF (high-density fiberboard).
[0019] Here, among the above side plates 22, a pipe insertion hole 22a formed as a long hole is provided at the lower part of the side plate 22 facing the box connection part 10C described later. Also, a pipe extraction hole 40 for extracting the under-floor pipe W is drilled in the bottom plate 24 as needed (in the illustrated embodiment, the pipe extraction hole 40 is provided in the bottom plate 24).
[0020] A kitchen fixing bar 52 is attached at a position directly below the shelf plate 28 on the back plate 30, and a light-blocking bar 54 is attached to the lower part of the front side of the bottom plate 14 as needed.
[0021] And on the front side of the stove-side box 10B, a front decorative panel 46 is attached as necessary to cover the portion below the shelf board 28, more specifically, the portion from the shelf board 28 to the bottom board 24. In the illustrated embodiment, since the light-blocking bar 54 is attached to the lower side of the bottom board 24, the front decorative panel 46 has a height from the bottom board 24 to the shelf board 28. However, if the light-blocking bar 54 is not provided, the height of the front decorative panel 46 may be set from the floor surface to the shelf board 28. Also, when the shelf board 28 is not attached, it is preferable to cover the entire front of the stove-side box 10B with the front decorative panel 46.
[0022] The box connection part 10C is a part that is length-adjusted to fill the gap between the sink-side box 10A and the stove-side box 10B on the back of the kitchen cabinet K and connects the two. It includes a bottom board 32 installed between the lower ends of the side board 12 of the sink-side box 10A and the side board 22 of the stove-side box 10B, a top board 34 installed between the upper ends of the side board 12 of the sink-side box 10A and the side board 22 of the stove-side box 10B, a shelf board 36 installed as necessary between the side board 12 of the sink-side box 10A and the side board 22 of the stove-side box 10B at a height approximately the same as the upper surface of the kitchen cabinet K, and a back board 38 that covers the side plane fixed to the back of the kitchen cabinet K. The bottom board 32, top board 34, shelf board 36, and back board 38 that constitute this box connection part 10C are also preferably formed of wood such as solid wood or laminated wood, or wood-based materials such as plywood, LVL (Laminated Veneer Lumber), PB (Particleboard), OSB (Oriented Strand Board), MDF, HDF (high-density fiberboard).
[0023] Here, a kitchen fixing bar 56 is attached at a position directly below the shelf board 36 on the back board 38, and a light-blocking bar 58 is attached to the lower part of the front side of the bottom board 32 as necessary. In addition, a pipe extraction hole 40 for extracting the under-floor pipe W may be drilled in the bottom board 32 as necessary.
[0024] Also, on the front side of the box connection part 10C, a front decorative panel 46 that covers the part below the shelf board 36, more specifically, the part from the shelf board 36 to the bottom board 32, is attached as necessary. For attaching the front decorative panel 46 to the box connection part 10C, a known panel connector can be used. In the illustrated embodiment, since the light shielding bar 58 is attached to the lower side of the bottom board 32, the front decorative panel 46 has a height from the bottom board 32 to the shelf board 36. However, when the light shielding bar 58 is not provided, the height of this front decorative panel 46 may be set from the floor surface to the shelf board 36. Further, when the shelf board 36 is not attached, it is preferable to cover the entire front of the box connection part 10C with the front decorative panel 46.
[0025] In the kitchen unit 10 configured as described above, in the embodiments of FIGS. 1 and 2, a counter panel 42 is attached from the upper surface of the outer longitudinal end of the top board 16 in the sink side box 10A to the upper surface of the outer longitudinal end of the top board 26 in the stove side box 10B. This counter panel 42 is also preferably formed of wood such as solid wood or glued laminated timber, or wood-based materials such as plywood, LVL (Laminated Veneer Lumber), PB (Particleboard), OSB (Oriented Strand Board), MDF, HDF (high - density fiberboard).
[0026] Furthermore, in the illustrated embodiment, an extension pipe L made of a rigid polyvinyl chloride pipe or the like that connects the drain port of the sink S and the under - floor pipe W is inserted into the pipe insertion holes 12a and 22a, and a support member 44 that supports the extension pipe L so as to have a downward gradient from the drain port of the sink S toward the under - floor pipe W is attached.
[0027] When using the kitchen unit 10 configured as described above for a kitchen renovation, first, install the kitchen cabinet K at a predetermined position close to the access opening of the underfloor piping W. Subsequently, position the sink-side box 10A and the stove-side box 10B at predetermined positions on the back surfaces of the left and right longitudinal ends of the kitchen cabinet K such that the left and right longitudinal end faces are flush, and connect the sink-side box 10A and the stove-side box 10B to the kitchen cabinet K using fixing fittings such as nails and screws from the portions of the kitchen fixing bars 48 and 52. At that time, position the side plate 12 provided with the pipe insertion hole 12a of the sink-side box 10A and the side plate 22 provided with the pipe insertion hole 22a of the stove-side box 10B so as to face each other.
[0028] Next, measure the distance between the side plate 12 of the sink-side box 10A and the side plate 22 of the stove-side box 10B facing the side plate 12 on the back surface of the kitchen cabinet K, and after adjusting (cutting) the lengths of the bottom plate 32, top plate 34, shelf plate 36, back plate 38, and front decorative panel 46 that constitute the box connection part 10C to match that distance, connect the side plate 12 provided with the pipe insertion hole 12a and the side plate 22 provided with the pipe insertion hole 22a with these members (excluding the front decorative panel 46) to assemble the box connection part 10C.
[0029] Subsequently, connect the ends of the extension pipe L inserted through the pipe insertion holes 12a and 22a to the drain outlet of the sink S and the underfloor piping W to communicate them, and arrange the extension pipe L using the support member 44 so as to have a downward gradient from the drain outlet of the sink S towards the underfloor piping W. Then, attach the front decorative panel 46 to the front surfaces of the sink-side box 10A, the stove-side box 10B, and the box connection part 10C as necessary, and further, if necessary, rotate and move the kitchen cabinet K with the kitchen unit 10 attached around the underfloor piping W in the pipe access hole 40 to a predetermined position for installation, and the kitchen renovation is completed.
[0030] According to the kitchen unit 10 of this embodiment, if the sink-side box 10A and the stove-side box 10B are made the same size, the production and management of inventory can be greatly rationalized.
[0031] Further, according to the kitchen unit 10 of this embodiment, for example, the kitchen installed in a wall-mounted type at the corner of the room R as shown in FIG. 3A can be installed in a wall-mounted type closer to the center of the room R as shown in FIG. 3B or in an island type as shown in FIG. 3C without performing renovation work on the underfloor piping W of the external drainage section. That is, without performing renovation work on the underfloor piping W of the external drainage section, the degree of freedom in layout when relocating the kitchen by renovation or the like can be significantly improved.
[0032] In the above-described embodiment, the case where the piping extraction hole 40 is provided in the bottom plate 24 of the stove-side box 10B and the extension piping L inserted through the piping insertion holes 12a and 22a is used is shown. However, depending on the extraction position of the underfloor piping W from the floor surface and the layout of the kitchen cabinet K when relocating the kitchen, the piping extraction hole 40 may be provided in the bottom plate 14 of the sink-side box 10A or the bottom plate 32 of the box connection portion 10C. Also, as the extension piping L, a short tubular one that is not inserted through the piping insertion holes 12a and 22a or one having a length that is inserted only through the piping insertion hole 12a may be used.
[0033] In the above-described embodiment, the case where individual front decorative panels 46 are provided on the fronts of the sink-side box 10A, the stove-side box 10B, and the box connection portion 10C is shown. However, this front decorative panel 46 may be a single one that covers the entire front width of the kitchen unit 10. Or, for example, when the installation mode of the kitchen cabinet K relocated using the kitchen unit 10 as shown in FIG. 3B is a wall-mounted type and the front of the kitchen unit 10 abuts against the wall surface of the room R, the front decorative panel 46 may be omitted.
[0034] Of course, various changes can be made within the scope that those skilled in the art can assume.
Description of Symbols
[0035] 10: Kitchen unit, 10A: Sink side box, 10B: Stove side box, 10C: Box connection part, 12: Side plate, 12a: Pipe insertion hole, 14: Bottom plate, 16: Top plate, 18: Shelf plate, 20: Rear plate, 20a: Opening, 22: Side plate, 22a: Pipe insertion hole, 24: Bottom plate, 26: Top plate, 28: Shelf plate, 30: Rear plate, 32: Bottom plate, 34: Top plate, 36: Shelf plate, 38: Rear plate, 40: Pipe extraction hole, 42: Counter panel, 44: Support member, 46: Front decorative panel, K: Kitchen cabinet, S: Sink, C: Stove, W: Underfloor piping, L: Extension piping.
Claims
1. A kitchen unit attached to the back of a kitchen cabinet (K) equipped with a sink (S) and a stove (C), a pair of left and right side plates (12) extending from the floor surface where the kitchen cabinet (K) is installed beyond the upper surface of the kitchen cabinet (K), a bottom plate (14) installed between the lower ends of the side plates (12), a top plate (16) installed between the upper ends of the side plates (12), and a back plate (20) covering the plane on the side fixed to the back of the kitchen cabinet (K). A sink-side box (10A) fixed to the end on the sink (S) side in the width direction on the back of the kitchen cabinet (K), a pair of left and right side plates (22) extending from the floor surface where the kitchen cabinet (K) is installed beyond the upper surface of the kitchen cabinet (K), a bottom plate (24) installed between the lower ends of the side plates (22), a top plate (26) installed between the upper ends of the side plates (22), and a back plate (30) covering the plane on the side fixed to the back of the kitchen cabinet (K). A stove-side box (10B) fixed to the end on the stove (C) side in the width direction on the back of the kitchen cabinet (K), and a bottom plate (32) installed between the lower ends of the side plate (12) of the sink-side box (10A) and the side plate (22) of the stove-side box (10B), a top plate (34) installed between the upper ends of the side plate (12) of the sink-side box (10A) and the side plate (22) of the stove-side box (10B), and a back plate (38) covering the plane on the side fixed to the back of the kitchen cabinet (K). It is provided with a box connecting part (10C) whose length is adjusted to fill the gap between the sink-side box (10A) and the stove-side box (10B) on the back of the kitchen cabinet (K) and connect the two, an opening (20a) leading to the drain opening at the lower part of the sink (S) is provided at the lower part of the back plate (20) of the sink-side box (10A), pipe insertion holes (12a, 22a) formed as long holes are provided at the lower parts of the side plate (12) of the sink-side box (10A) and the side plate (22) of the stove-side box (10B) facing the box connecting part (10C), and A kitchen unit, characterized in that a pipe extraction hole (40) for extracting the underfloor piping (W) is formed in at least one of the bottom plate (14) of the sink-side box (10A) and the bottom plate (24) of the stove-side box (10B).
2. In the kitchen unit according to Claim 1, a counter panel (42) is attached from the upper surface of the longitudinal outer end of the top plate (16) in the sink-side box (10A) to the upper surface of the longitudinal outer end of the top plate (26) in the stove-side box (10B). A kitchen unit characterized by that.
3. In the kitchen unit according to Claim 1 or 2, the pipe extraction hole (40) is formed in the bottom plate (24) of the stove-side box (10B), an extension pipe (L) connecting the drain outlet of the sink (S) and the underfloor pipe (W) is inserted into the pipe insertion holes (12a, 22a), and a support member (44) is provided to support the extension pipe (L) so as to have a downward gradient from the drain outlet of the sink (S) toward the underfloor pipe (W). A kitchen unit characterized by that.
4. In the kitchen unit according to Claim 1 or 2, a front decorative panel (46) covering the surface is attached to the surfaces of the sink-side box (10A), the stove-side box (10B), and the box connection part (10C). A kitchen unit characterized by that.
Citation Information
Patent Citations
Piping space unit
JP2006006703A