Vibration device of electric bed

Abstract

This invention relates to a vibration device for an electric bed, comprising a bed board, a base, at least three support members, and a vibrator. The bed board has a hollow portion. The base includes a body disposed on the bed board, a slot disposed on the body and communicating with the hollow portion, and at least three cantilever arms extending from the body into the slot. Each cantilever arm has a first end connected to the body and a second end located in the slot opposite to the first end. Each support member has a base disposed on the body of the base or at the first end of one of the cantilever arms, and an extension extending from the base and abutting against the second end of another cantilever arm. The vibrator is located within the hollow portion and connected to the second ends of the cantilever arms. Therefore, this vibration device for the electric bed is not only structurally robust and durable but also capable of transmitting moderate vibration force.

Description

Technical Field

[0001] The present invention relates to an electric bed, and in particular to a vibration device for the electric bed. Prior Art

[0002] Electric beds, with their electrically adjustable bed angle, are becoming increasingly popular. To enhance the user experience, some are equipped with vibration devices, such as motors or subwoofers. However, since these devices continuously vibrate, ensuring the user feels the vibration without causing discomfort has become a major research and development challenge in the industry. If the connection between the vibration device and the bed is too rigid, it can cause discomfort; if the connection is too flexible, it can reduce the vibration force and easily damage the bed. Therefore, conventional electric beds with vibration devices still have room for improvement. Summary of the Invention

[0003] One purpose of the present invention is to provide a vibration device for an electric bed, which has a stable and durable structure and can transmit moderate vibration force.

[0004] To achieve the above objectives, the vibration device of an electric bed of the present invention comprises a bed plate, a base, at least three support members, and a vibrator. The bed plate has a hollow portion, the base comprises a body mounted on the bed plate, a through-slot mounted in the body and communicating with the hollow portion, and at least three cantilevers extending from the body into the through-slot, each cantilever having a first end connected to the body and a second end located within the through-slot and opposite to the first end. Each support member has a base mounted on the body of the base or on the first end of one of the cantilevers, and an extension extending from the base and abutting against the second end of another cantilever. The vibrator is located within the hollow portion and connected to the second ends of the cantilevers. Thus, the vibration device of the electric bed is not only structurally stable and durable, but also capable of transmitting moderate vibration force. Simple diagram description

[0005] Figure 1 is a three-dimensional view of the vibration device of an electric bed according to a preferred embodiment of the present invention; Figure 2 is a cross-sectional view of the vibration device of an electric bed according to a preferred embodiment of the present invention; Figure 3 is an exploded view of the vibration device of an electric bed according to a preferred embodiment of the present invention; Figure 4 is a three-dimensional view of the base of the vibration device of an electric bed according to a preferred embodiment of the present invention. Implementation Method

[0006] The following describes in detail the technical content and features of the present invention through a preferred embodiment in conjunction with the drawings. As shown in Figures 1 to 4, a vibration device 1 for an electric bed provided by a preferred embodiment of the present invention includes a bed frame 10, five bed boards 14 arranged on the top side of the bed frame 10, three cushioning pads 18 arranged above the five bed boards 14, a base 20, at least three support members 30 and a vibrator 40.

[0007] The bed frame 10 includes a frame 11 and four legs 12 disposed below the frame 11 to raise the frame 11 to a predetermined height from the ground, making it convenient for users to get on and off the electric bed 1. However, the legs 12 may not be provided.

[0008] The five bed boards 14 can all be used to mount the base 20. In this embodiment, the second bed board 14 from the left in FIG1 is used as an example. The bed board 14 has a rectangular hollow portion 15. The material of the bed board 14 can be wood, metal, etc., and the structure can be plate-shaped or mesh-shaped.

[0009] In order to improve comfort, the cushion pads 18 can be placed on the bed boards 14. The cushion pads 18 are made of foam, silicone, rubber, cotton or other materials with cushioning properties.

[0010] The base 20 includes a rectangular body 21 provided on the bottom side 16 of the bed board 14, a circular through-groove 22 provided on the body 21 and connected to the hollow portion 15, three cantilevers 24 extending from the body 21 into the through-groove 22, and a circular inner ring 27 connecting the cantilevers 24, wherein the body 21 has three protrusions 211 extending into the through-groove 22, and the protrusions 211 are located between the cantilevers 24, each of the cantilevers 24 extends along the inner wall of the through-groove 22 and has a first end 25 connected to the body 21, and a second end 26 located in the through-groove 22 relative to the first end 25. From the perspective of Figures 2~3, the position of the second end 26 is higher than the first end 25.

[0011] Each support member 30 comprises a base 32 mounted on the body 21 of the base 20, an extension 34 extending obliquely upward from the base 32, and an abutment portion 36 extending in the opposite direction from the base 32. In this embodiment, the support member 30 is a torsion spring. The base 32 is tubular and fits over the boss 211 of the body 21. The extension 34 abuts against the second end 26 of the adjacent cantilever 24 to support it, while the abutment portion 36 abuts against the first end 25 of the adjacent cantilever 24 to enhance the securement. Thus, the support members 30 can assist in supporting the second end 26 of the cantilever 24, though the shape of the support member 30 is not limited.

[0012] The vibrator 40 is located within the hollow portion 15 and is connected to the second ends 26 of the cantilevers 24 via a plurality of bolts (not shown). The vibrator 40 can be a vibration-generating device such as a vibration motor with a cam or a woofer. The bottom 42 of the vibrator 40 is short and cylindrical and can extend into the inner ring 27 of the base 20. In other words, the inner ring 27 is fitted around the vibrator 40 to help secure the vibrator 40 to the base 20. The vibrator 40 protrudes from the top surface 17 of the bed board 14.

[0013] In order to more accurately position the vibrator 40, a stopper 28 can be provided on each of the second ends 26 of the cantilevers 24, located at the outer periphery of the vibrator 40. The stopper 28 can position the vibrator 40 therein. In this way, the vibrator 40 can be firmly connected to the base 20.

[0014] In order to more accurately position the base 20 , a flange 29 corresponding to the shape of the hollow portion 15 may be provided on the body 21 , so that the flange 29 extends into the hollow portion 15 and abuts against the inner edge of the hollow portion 15 .

[0015] The vibrations generated by the vibrator 40 can be transmitted upward to the cushioning pad 18 or a mattress placed above the cushioning pad 18 (not shown), so that the user can feel them. In addition, the vibrations can be weakened by the cantilevers 24 and transmitted to the bed board 14, which not only alleviates the user's discomfort but also provides appropriate support for the vibrator 40 to transmit a resilient and moderate vibration force. Furthermore, the support members 30 can assist in supporting the cantilevers 24 to prevent the cantilevers 24 from breaking after long-term use due to being unable to withstand the vibrations of the vibrator 40, thereby enhancing the structural stability and achieving the purpose of the present invention.

[0016] Based on the design spirit of the present invention, the structure of the vibration device 1 of the electric bed may have other variations. For example, the number of the cantilever arms 24 may be increased as needed, the main body 21 of the base 20 may be relocated to the top surface 17 of the bed board 14 or within the hollow portion 15, the vibrator 40 may be flush with the top surface 17 of the bed board 14, the protrusions 211 may be omitted, the support members 30 may be located elsewhere on the main body 21 or at the first ends 25 of the cantilever arms 24, the support members 30 may be springs or other elastic structures, and the abutment members 36 may be omitted. All such readily conceivable structural variations are intended to be covered by the scope of the present invention.

[0017] 1: Vibration device of electric bed

[0018] 10:Bed frame

[0019] 11: Skeleton

[0020] 12: Support legs

[0021] 14: bed board

[0022] 15: Hollow part

[0023] 16: Bottom side

[0024] 17: Top

[0025] 18: cushion

[0026] 20: Base

[0027] 21:Ontology

[0028] 211: convex column

[0029] 22: Grooving

[0030] 24: Cantilever

[0031] 25: First End

[0032] 26: Second End

[0033] 27: Inner Ring

[0034] 28: Limiting part

[0035] 29: Flange

[0036] 30: Support

[0037] 32: Base

[0038] 34: Extension

[0039] 36: Reach the top

[0040] 40: Vibrator

Claims

1. A vibration device for an electric bed, comprising: a bed plate having a hollow portion; a base comprising a body disposed on the bed plate, a through-slot disposed in the body and communicating with the hollow portion, and at least three cantilevers extending from the body into the through-slot, wherein each cantilever has a first end connected to the body and a second end located in the through-slot, the second end of the cantilever being positioned higher than the first end; at least three support members, each support member having a base disposed on the body of the base or the first end of one of the cantilevers, and an extension extending from the base and abutting against the second end of another cantilever; and a vibrator located in the hollow portion and connected to the second ends of the cantilevers.

2. The vibration device of the electric bed as described in claim 1, wherein the base system is arranged on the bottom side of the bed board.

3. The vibration device of the electric bed as described in claim 1, wherein the cantilever arms extend along the inner wall of the through groove.

4. The vibration device of the electric bed as described in claim 1, wherein the base further has an inner ring connected to the second ends of the cantilevers and sleeved on the vibrator.

5. The vibration device of the electric bed as described in claim 1, wherein the second ends of the cantilevers each have a limiting portion located on the outer periphery of the vibrator.

6. The vibration device of the electric bed as described in claim 1, wherein the vibrator is protruding from or flush with the top surface of the bed board.

7. The vibration device of the electric bed as described in claim 1, wherein the body of the base has at least three protrusions extending into the through slot, and the protrusions are located between the cantilevers for the base of the support members to be set.

8. The vibration device of the electric bed as described in claim 7, wherein the support members further have an abutment top extending from the base and abutting against the first ends of the cantilevers.

9. The vibration device of the electric bed as described in claim 1 or 7, wherein the support member is a torsion spring.

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