Vibration absorption pedestal

Abstract

To provide a vibration absorption pedestal which enables its part including the exterior of a square tube to contribute to bearing of a load and absorption of vibration and makes the vibration and noise less likely to leak to a waterproof pan etc.SOLUTION: A vibration absorption pedestal 1 includes a square tube 2 and a bottom lid 3. The square tube 2 has a shape profile of a regular polygon which is pentagon or a larger polygon and includes, at an upper part, a placement surface 2a for placing a device which causes vibration when used. At an interior located between the placement surface 2a of the square tube 2 and a bottom surface of a lower part, a plurality of cavities 2b, 2c extending vertically are disposed. A cross sectional area of the cavity 2c at the center is larger than those of the other cavities 2b at the periphery. The bottom lid 3 has a plate-like shape and a shape profile 3a which covers an outer periphery of the bottom surface of the square tube 2. In the square tube 2, except portions of the cavities 2b, 2c formed at the interior, the exterior and a wall surface of the interior are connected. The structure allows the exterior to contribute to bearing of a load and absorption of the vibration.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vibration absorbing base for placing an appliance that generates vibrations during use, such as a washing machine. [Background technology]

[0002] Conventionally, raised pedestals for placing a washing machine or other device that generates vibration have been equipped with a vibration absorbing function (see, for example, "Pedestal" in Patent Document 1 and "Appliance Mounting Stand" in Patent Document 2). These pedestals are intended for use with a washing machine or other device in a waterproof pan, and are placed at the four corners of the roughly rectangular waterproof pan. At each corner of the waterproof pan, two side walls meet at a right angle, so the shape of the pedestal is a square tube with a square outline. However, if the two side walls of the waterproof pan and the corners of the pedestal are in close contact with each other, dirt and the like will easily accumulate, making maintenance difficult. For this reason, the outline of the pedestal as a square tube is a modified pentagon with one corner inclined at 45 degrees. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5403720 [Patent Document 2] Patent No. 5882571 Summary of the Invention [Problem to be solved by the invention]

[0004] In the base of Patent Document 12, the "rectangular outer covering 14" which is the outer part of the outline of the "rectangular cylinder 12" which is a square cylinder, does not reach the "rectangular bottom plate 11" at the bottom, and does not contribute to the burden of the load or the absorption of vibration. In addition, the upper end is shaped as a "bump-shaped part 13" which protrudes to the periphery, and there is a risk that the support of the rectangular cylinder with a small cross-sectional area may become unstable. In the equipment mounting stand A of Patent Document 2, the "outer decorative wall 5" which covers the periphery of the upper "mounting part 3" from the bottom is floating from the bottom, and does not contribute to the burden of the load or the absorption of vibration. In addition, since it is necessary to support the load and absorb the vibration with multiple "support columns 4" which are distributed inside the equipment mounting stand, the arrangement and number of the support columns must be adjusted. Furthermore, when installing in the corner of a waterproof pan, the outline shape of a rectangle based on a square or a deformed pentagonal diameter creates a part that comes into close contact with the two side walls of the waterproof pan, and there is a risk that vibration and noise may leak into the waterproof pan.

[0005] To provide a vibration-absorbing base that can contribute to bearing loads and absorbing vibrations, including the outside of a rectangular cylinder, and that is less likely to leak vibrations or noise into a waterproof pan, etc. [Means for solving the problem]

[0006] The present invention relates to a rectangular cylinder having a contour shape of a regular polygon with five or more sides, a mounting surface on an upper part for mounting an apparatus that generates vibrations when in use, and a plurality of cavities extending vertically are disposed inside the cylindrical body between the mounting surface and a bottom surface on the lower part, the central cavity having a larger cross-sectional area than the other surrounding cavities. A bottom cover that is plate-shaped and has a contour shape that covers the outer periphery of the bottom surface of the rectangular cylinder and is attached to the lower part of the rectangular cylinder; A vibration absorbing base comprising: It is.

[0007] In addition, the outline shape of the rectangular cylinder of the present invention is a regular hexagon, and the cavity provided inside the rectangular cylinder is formed between the inner wall surfaces of the honeycomb structure. It is characterized by:

[0008] In addition, the rectangular tube body and the bottom cover of the present invention are each formed of different materials. It is characterized by: Effect of the Invention

[0009] According to the present invention, the outer and inner walls of the square cylinder are connected except for the multiple cavities formed inside, and the outer wall can also contribute to bearing the load and absorbing vibrations. The inner cavity has a large outline shape in the center, so vibrations can be dispersed to the surrounding cavities. Vibrations and impacts from the outside are dispersed without concentrating in one cavity, improving the durability of the entire structure. The outline shape of the square cylinder is a regular polygon with five or more sides, so it does not come into close contact with the side walls of the waterproof pan, and vibrations and noise are less likely to leak into the waterproof pan, etc.

[0010] According to the present invention, the contour shape of the rectangular cylinder is a regular hexagon and the interior wall surface has a honeycomb structure, so that the walls and joints of the internal cavity receive forces evenly, and external vibrations and forces are dispersed over a wide area. The honeycomb structure is relatively lightweight yet highly rigid, and can achieve maximum strength with a minimum amount of material, while absorbing external vibrations and shocks and minimizing deformation of the structure.

[0011] Furthermore, according to the present invention, since the rectangular tube and the bottom cover are made of different materials, the vibration damping performance also differs, and it is possible to adjust the damping force so as to achieve an optimum force according to the vibration frequency. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a front view and a perspective view including a front cross section of a vibration absorbing base 1 according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a right side view and a perspective view including a right side cross section of the vibration absorbing base 1 of FIG. [Diagram 3] FIG. 3 is a plan view and a perspective view seen from above of the vibration absorbing base 1 of FIG. [Figure 4]FIG. 4 is a bottom view and a perspective view seen from below of the vibration absorbing base 1 of FIG. [Diagram 5] FIG. 5 is a bottom view of the rectangular tube 2 of FIG. [Figure 6] FIG. 6 is a perspective view of the bottom cover 3 of FIG. [Figure 7] FIG. 7 is a simplified plan view showing a state in which the vibration absorbing base 1 of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] 1 to 6 show the structure of a vibration absorbing pedestal 1 according to one embodiment of the present invention, and Fig. 7 shows an example of how to use it. In some drawings, the illustration of corresponding parts in other drawings may be omitted. The embodiment will be explained according to the drawings, but the explanation of the omitted parts in the drawing to be explained may also be given by using references in other drawings. EXAMPLES

[0014] 1 and 2 show a vibration absorbing pedestal 1 according to an embodiment of the present invention, in which (a) is a front view and a right side view, and (b) is a perspective view including a front cross section and a perspective view including a right side cross section, respectively. FIG. 3 and FIG. 4 show the vibration absorbing pedestal 1 in (a) a plan view and a bottom view, and (b) a perspective view seen from above and below, respectively. The vibration absorbing pedestal 1 includes a square tube 2 and a bottom cover 3. The square tube 2 has a contour shape of a regular polygon with five or more sides, and has a mounting surface 2a on the upper part for a device that generates vibration when used. A plurality of cavities 2b and 2c extending vertically are arranged inside the square tube 2 between the mounting surface 2a and the bottom surface of the lower part, and the central cavity 2c has a cross-sectional area larger than the other cavities 2b that surround it. The bottom cover 3 is plate-shaped, has a contour shape 3a that covers the outer periphery of the bottom surface of the square tube 2, and is attached to the lower part of the square tube 2. The periphery of the mounting surface 2a of the square tube 2 rises like a wall and is provided with a drainage notch 2d. A receiving portion 3b that receives the cavity 2b arranged around the central cavity 2c of the square tube 2 is provided on the upper surface of the bottom lid 3. The lower part of the contour shape 3a of the bottom lid 3 becomes a grounding portion 3c that abuts on the surface on which the vibration absorbing base 1 is installed. A drainage notch 3d is also provided in the grounding portion 3c.

[0015] The outside and inside walls of the square cylinder 2 are connected, except for the multiple cavities 2b and 2c formed inside, so the outside can also contribute to bearing the load and absorbing vibrations. The internal cavities 2b and 2c have a larger contour shape of the central cavity 2c than the contour shapes of the surrounding cavities 2b, so vibrations can be dispersed to the surrounding cavities 2b. External vibrations and impacts are dispersed without concentrating on one of the cavities 2b and 2c, improving the durability of the entire structure.

[0016] FIG. 5 shows the internal structure of the square tube 2 as a bottom view. The contour shape of the square tube 2 in this embodiment is a regular hexagon, and the cavities 2b, 2c installed inside the square tube 2 are formed between the inner wall surfaces 2e of the honeycomb structure. However, the contour shape of the regular hexagon has rounded corners. Since the inner wall surface 2e of the honeycomb structure is included inside, the walls and joints of the internal cavities 2b, 2c receive the force evenly, and the vibration and force from the outside are dispersed over a wide range. The honeycomb structure is relatively light yet has high rigidity, and can achieve maximum strength with a minimum amount of material used, and can absorb vibration and shock from the outside and minimize deformation of the structure. In addition, the honeycomb structure is a structure in which the cavities 2b, 2c are cells, and the cells form a polygonal continuum. This continuous cell structure transmits and reinforces the force. Deformation or damage caused in one cell also affects the adjacent cells, and as a whole, there is a self-reinforcing effect that maintains strength and stability.

[0017] Figure 6 shows the structure of the bottom cover 3. The bottom cover 3 is made of a different material from the rectangular tube body 2. The rectangular tube body 2 is formed by injection molding a thermoplastic resin such as polypropylene. If the bottom cover 3 is made of a rubber-based material such as urethane, an elastomer-based material such as TPU, or other engineering plastics, it can be combined with a material with different vibration damping and vibration-proofing properties from the rectangular tube body 2, and can be adjusted to provide the optimal damping force according to the vibration frequency.

[0018] FIG. 7 shows a simplified state in which the vibration absorbing pedestal 1 is arranged at the four corners of the waterproof pan 10. By making the outline shape of the vibration absorbing pedestal 1 a regular polygon having five or more corners, such as a regular hexagon, the interior angle of the corner is larger than a right angle, and the corners of the rectangular waterproof pan 10 do not come into close contact with the side wall. This makes it difficult for vibrations and noise to leak into the waterproof pan 10, etc., and makes it difficult for garbage to accumulate, thereby reducing the effort of cleaning. The combination of the waterproof pan 10 and the vibration absorbing pedestal 1 can be applied not only when a washing machine is used, but also when a washer-dryer is used. Furthermore, the vibration absorbing pedestal 1 can be suitably used for placing equipment that becomes a source of vibration during use, such as air conditioning equipment. [Explanation of symbols]

[0019] 1 Vibration absorbing base 2 Square tube 2a Placement surface 2b,2c cavity 2e Inner wall 3 Bottom lid 3a Contour shape 3b Receiving part 10 Waterproof pants

Claims

1. A rectangular cylinder having a contour shape of a regular polygon having five or more sides, a mounting surface on the upper part for mounting an apparatus that generates vibrations when in use, and a plurality of cavities extending vertically are disposed inside the cylinder between the mounting surface and a bottom surface of the lower part, the central cavity having a larger cross-sectional area than the other surrounding cavities; A bottom cover that is plate-shaped and has a contour shape that covers the outer periphery of the bottom surface of the rectangular cylinder and is attached to the lower part of the rectangular cylinder; A vibration absorbing base comprising:

2. The contour shape of the rectangular cylinder is a regular hexagon, and the cavity provided inside the rectangular cylinder is formed between the inner wall surfaces of the honeycomb structure.

2. The vibration absorbing base according to claim 1.

3. The rectangular tube body and the bottom cover are each formed of a different material.

3. The vibration absorbing base according to claim 1 or 2.

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