BED
A bed assembly that includes a platform that would typically receive a mattress so that the platform can support a person in a lying position. The platform is supported by a post that extends downwardly from the platform to base. The base is supported by a pair of links that are pivotally attached to the base and upper pivots. The base pivots about four generally parallel transversely spaced and parallel axes to provide the platform with a rocking motion.
The present invention relates to beds and more particularly to beds that provide movement for the person occupying the bed.
BACKGROUNDBeds generally consist of a platform that is to support a person in a lying or reclining position.
In addition to supporting the person on the bed, some beds also provide a vibration function, as well as being able to adjust various portions of the platform so as to locate the occupant of the bed in a desired position.
However the above described beds suffer from the disadvantage that they do not provide a rocking motion.
ObjectIt is the object of the present invention to overcome or substantially ameliorate the above disadvantage.
SUMMARY OF INVENTIONThere is disclosed herein a bed assembly including:
a platform to support a person in a lying and/or reclined position;
a support member fixed to the platform so as to extend downwardly therefrom; a base;
a linkage assembly supporting the member on the base for movement about two space first pivots providing first pivot axes that are generally parallel, horizontal and transversely spaced about which the member moves to cause movement of the platform.
Preferably, the bed assembly includes a motor means to cause movement of the linkage assembly and therefore cause movement of the platform.
Preferably, the assembly includes two spaced second pivots providing second pivot axes that are generally parallel, horizontal and transversely spaced, and parallel to the first pivot axes, with the platform being supported so as to move angularly about the first and second pivot axes.
Preferably, the first pivots are upper pivots, and the second pivots lower pivots, with the first pivots being transversely spaced by a predetermined distance, with said distance being adjustable.
Preferably, the assembly includes an adjustment mechanism to alter said distance, the adjustment mechanism moving the first pivot in unison either toward or away from each other.
Preferably, the adjustment mechanism includes springs that maintain the adjustment mechanism in tension.
Preferably, the assembly includes a plurality of links, with each link extending between a respective one of the upper pivots and a respective one of the lower pivots.
Preferred forms of the present invention will now be described by way of example with reference to the accompanying drawings wherein:
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The assembly 10 also includes a base 12, that would rest on a floor surface, having end members 13 providing at their upper portions pivot brackets 18. The pivot brackets 18 engage a linkage assembly 14 that includes a beam 15. Fixed to the beam 15 is at least one post 16 that extends upwardly from the beam 15 to be fixed to an under portion of the platform 11 so that the platform 11 is supported thereby.
It should be appreciated that in this embodiment, and the following embodiments, the assemblies illustrated are located at one longitudinal end of the bed, with an identical assembly being provided at the opposite end of the bed. In such an arrangement the platform 11 sways transversely of the longitudinal direction of extension of the bed. In alternative embodiments, the assembly 10 could be arranged so that the platform 11 moves in the longitudinal direction of the bed.
The linkage assembly 14 provides pivots 19 and 20, with the pivots 19 and 20 providing generally horizontal parallel and transversely spaced pivot axes including an upper two axes provided by the pivots 19, and lower axes provided by the pivots 20. The assembly also provides links 17 that extend between pivots 19 and 20 so as to support the beam 15.
Extending between the base 12 and the beam 15 is a motor means 21 that causes reciprocation in the direction 22 of the beam 15 thereby providing the platform 11 with a similar motion.
The motor means 21 may be an electric, pneumatic or hydraulic motor, or a linear actuator.
Preferably the motor means 21 would be operatively associated with a controller 23 that is programmable to provide adjustment of the displacement of the beam 15, that is amplitude and frequency of the rocking motion of the platform 11.
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The linkage assembly 28 includes a pair of flanges 29 that are pivotally fixed to the base 12 for angular movement about pivots 30.
Joining the flanges 29 are linkages 31, 32 and 33, with the linkages 31 to 33 being pivotally attached, and in turn being pivotally attached to the flanges 29. The linkage 31 is of an “L” configuration and cooperates with the linkages 32 and 33 to couple the flanges 29 so that the flanges 29 move in unison when being adjusted. The adjustment of the assembly 28 is provided by angular movement of the shaft 34. Angular movement of the linkage 31 causes movement of the flanges 29 angularly along the paths 35. By operation of the shaft 34, the amount of angular movement (amplitude) the platform 11 can be adjusted.
If so required springs 36 may be provided (
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Claims
1. A bed assembly including:
- a platform to support a person in a lying and/or reclined position;
- a support member fixed to the platform so as to extend downwardly therefrom;
- a base; and
- a linkage assembly supporting the member on the base for movement about two space first pivots providing first pivot axes that are generally parallel, horizontal and transversely spaced about which the member moves to cause movement of the platform.
2. The bed assembly of claim 1 further including a motor means to cause movement of the linkage assembly and therefore cause movement of the platform.
3. The bed assembly of claim 1 further including two spaced second pivots providing second pivot axes that are generally parallel, horizontal and transversely spaced, and parallel to the first pivot axes, with the platform being supported so as to move angularly about the first and second pivot axes.
4. The bed assembly of claim 1 wherein the first pivots are upper pivots, and the second pivots lower pivots, with the first pivots being transversely spaced by a predetermined distance, with said distance being adjustable.
5. The bed assembly of claim 1, further including an adjustment mechanism to alter said distance, the adjustment mechanism moving the first pivot in unison either toward or away from each other.
6. The bed assembly of claim 5, wherein the adjustment mechanism includes springs that maintain the adjustment mechanism in tension.
7. The bed assembly of claim 1, wherein the assembly includes a plurality of links, with each link extending between a respective one of the upper pivots and a respective one of the lower pivots.
Type: Application
Filed: May 23, 2016
Publication Date: Oct 4, 2018
Applicant: Rockabye Beds Pty Ltd (North Haven, NSW)
Inventor: Gregory Allan Chapman (Epping)
Application Number: 15/575,683