A height adjustment unit 10 for raising the height of a chair or bed. The unit 10 comprises a ground engaging support member 12 with an internal thread 18. A height adjustment member 14 is engageable with the thread 18 to be rotatable to a required height. A sheet 56 of a resiliently deformable mate
A height adjustment unit 10 for raising the height of a chair or bed. The unit 10 comprises a ground engaging support member 12 with an internal thread 18. A height adjustment member 14 is engageable with the thread 18 to be rotatable to a required height. A sheet 56 of a resiliently deformable material extends across the top of the member 14 and has a pattern of openings therethrough to receive and grip the leg of a bed or chair.
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1. Height adjustment apparatus, the apparatus comprising a ground engaging support member, the support member being internally threaded within a bore of that member, a height adjustment member located within the support member and extending upwardly therefrom, the height adjustment member being thre
1. Height adjustment apparatus, the apparatus comprising a ground engaging support member, the support member being internally threaded within a bore of that member, a height adjustment member located within the support member and extending upwardly therefrom, the height adjustment member being threadably engageable with the support member such that relative rotation of the height adjustment member causes raising or lowering thereof relative to the support member, and one or more item engagement arrangements locatable within the height adjustment member and configured so as to engage with an item extending upwardly therefrom, whereby the height of the item can be adjusted, at least one of the one or more item engagement arrangements comprising a sheet of a resiliently deformable material, a plurality of interconnected openings being provided in the sheet such that an item can be pushed through the openings, and the resiliently deformable material will grip the item extending therethrough, wherein the openings are in the form of interconnecting slots, the interconnecting slots being curved and extending at least generally radially from an interconnecting central opening. 2. Apparatus according to claim 1, wherein the resiliently deformable material is PVC. 3. Apparatus according to claim 1, wherein at least one of said one or more item engagement arrangements comprises a rigid member which can support an item thereon, and to which the item can be adhered and/or mounted by one or more fastening means. 4. Apparatus according to claim 1, wherein at least one of said one or more item engagement arrangements is selectively mountable within the height adjustment member. 5. Apparatus according to claim 4, wherein one or more fittings are provided on the one or more item engagement arrangements to provide mounting within the height adjustment member. 6. Apparatus according to claim 1, wherein a window is provided through the support member, through which window a part of the height adjustment member can be viewed. 7. Apparatus according to claim 6, wherein a height scale is provided on the height adjustment member such that the amount of additional height provided by the height adjustment apparatus can be read. 8. Apparatus according to claim 7, wherein more than one scale is provided on the height adjustment member. 9. Apparatus according to claim 1, wherein the support member is internally threaded for substantially the whole height thereof. 10. Apparatus according to claim 9, wherein a rim around the lower part of the height adjustment member is engageable with the support member thread. 11. Apparatus according to claim 1, wherein a ground engageable base member is mountable on the underside of the support member. 12. Apparatus according to claim 11, wherein recesses are provided in the underside of the base member to receive feet appropriate to the flooring upon which the apparatus is to be used. 13. Height adjustment apparatus, the apparatus comprising a ground engaging support member with an internal thread, a height adjustment member located within the support member and extending upwardly therefrom, the height adjustment member being threadably engageable with the support member such that relative rotation of the height adjustment member causes raising or lowering thereof relative to the support member, and one or more item engagement arrangements locatable within the height adjustment member and configured so as to engage with an item extending upwardly therefrom, wherein a connection member is provided engageable with the support member, and connectable to another such height adjustment apparatus to provide a required spacing therebetween, with the connection member including a collar which slidingly fits over the support member, and a link member extending from the collar. 14. Apparatus according to claim 13, wherein the link member extends from at least adjacent one of the lower or upper edge of the collar, and is spaced from the other of the lower or upper edge of the collar, such that if the connection member is turned over relative to the support member, the link member will be at a different height such that link members extending from respective height adjustment apparatus can be connected together one above each other. 15. Apparatus according to claim 13, wherein cooperating formations are provided on the inside of the link member collar and the outside of the support member, to prevent relative rotation therebetween once the formations are engaged. 16. Apparatus according to claim 15, wherein a plurality of formations are provided around the inside of the collar to permit different respective orientations between the link member and the support member. 17. Apparatus according to claim 16, wherein spaced projections on the outside of the support member are engageable with a respective one or ones of a plurality of recesses on the inside of the collar. 18. Apparatus according to claim 7, wherein a plurality of scales are provided on the height adjustment member, graduated in different units.
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