Furniture adjustment device

Claim 2

A furniture adjustment device for extending the legs of a piece of furniture, the device comprising for each leg a respective leg extender, each leg extender having: an elongate leg extension member, having a rebate extending along its length for at least partially accommodating its leg and a lower end for abutting the floor and further having a plurality of laterally open recesses spaced along its length; a support in the rebate of the leg extension member intermediate its ends, on which a bottom end of the furniture leg can rest to extend it by a distance in the extender from the support to a lower end of the leg extension member, the support having at least one tongue for engagement in a selected one of the recesses thereby being adjustable between discrete positions along the length of the leg extension member; a clamp for clamping the leg extension member to the leg above the support to secure the extender to the leg, the clamp having a leg gripping member extending across the rebate at a position between an upper end of the elongate extension member and the support to grip the leg and clamp it into the rebate and to restrain pivoting of the extender with respect to the leg by providing abutment of the leg with the elongate member in the rebate both above the leg gripping member and below it; and a locking member laterally retained on and axially slidable along its leg extension member into discrete positions corresponding to the discrete positions of the recesses for restraining lateral movement of its support and withdrawable therefrom for disengagement of at least one tongue from the selected recesses.

Claim 3

A furniture adjustment device as claimed in claim 1, wherein each support locking member includes a resilient catch engageable with its support, when the locking member is in its restraining positions, and manually releaseable therefrom for withdrawal of the locking member from its restraining positions.

Claim 4

A furniture adjustment device as claimed in claim 2, wherein each support locking member is captive to its support and withdrawable longitudinally from its restraining positions only sufficiently to allow the support to be disengaged from the selected recess for movement of the support and locking member together to another recess.

Claim 5

A furniture adjustment device as claimed in claim 3, wherein each support has an outer surface abutting an inner surface of its locking member in the latter's restraining positions, the said outer surface having a relieved portion alignable with the inner surface of the locking member when the latter is withdrawn to permit disengagement of the support from its leg extension member.

Claim 6

A furniture adjustment device as claimed in claim 4, wherein the recesses are provided in pairs and a pair of the tongues is provided for engagement of the latter pair in a selected one of the pair of recesses, the rebate of each elongate leg extension member is angular and the member comprises a pair of elongate grooves on opposite sides of the rebate; each support comprises a body shaped to fit the rebate, having a lower part and an upper part and adapted to pivot about the lower part of the body for disengagement of the said pair of tongues which are provided on the upper part of the body from one of the pairs of recesses which are arranged on respective faces of the rebate; and each support locking member comprises a pair of lips received in respective ones of the grooves for laterally retaining the locking member on its leg extension member; the lower part of the support body covered by the locking member whether the latter is in its restraining or its withdrawn positions and the upper part of the body being covered by the locking member when in its restraining positions and being uncovered by the locking member when in its withdrawn positions.

Claim 7

A furniture adjustment device for extending the legs of a piece of furniture, the device comprising for each leg a respective leg extender, each leg extender having: an elongate leg extension member, having an elongate leg-receiving angular rebate extending along its length for at least partially accommodating its leg and a lower end for abutting the floor and a pair of elongate grooves on opposite sides of the rebate; a support in the rebate of the leg extension member intermediate its ends, on which a bottom end of the furniture leg can rest to extend it by a distance in the extender from the support to a lower end of the leg extension member; and a clamp for clamping the leg extension member to the leg above the support to secure the extender to the leg, the clamp having a leg gripping member extending across the rebate at a position between an upper end of the elongate extension member and the support to grip the leg and clamp it into the rebate and to restrain pivoting of the extender with respect to the leg by providing abutment of the leg with the elongate member in the rebate both above the leg gripping member and below it, the clamp being an over-centre buckle clamp having a clamp body radially retained on its leg extension member and axially slidable therealong for adjustment of its position between the upper end of the elongate member and the support and a strap providing its leg gripping member, the clamp body comprising a pair of lips received in respective ones of the grooves for laterally retaining the clamp body on its leg extension member; the clamp body extending peripherally around the leg extension member oppositely from the rebate.

Claim 8

A furniture adjustment device for extending the legs of a piece of furniture, the device comprising for each leg a respective leg extender, each leg extender having: an elongate leg extension member, having an elongate leg-receiving angular rebate extending along its length for at least partially accommodating its leg and a lower end for abutting the floor and a pair of elongate grooves on opposite sides of the rebate; a support in the rebate of the leg extension member intermediate its ends, on which a bottom end of the furniture leg can rest to extend it by a distance in the extender from the support to a lower end of the leg extension member; and a clamp for clamping the leg extension member to the leg above the support to secure the extender to the leg, the clamp having a leg gripping member extending across the rebate at a position between an upper end of the elongate extension member and the support to grip the leg and clamp it into the rebate and to restrain pivoting of the extender with respect to the leg by providing abutment of the leg with the elongate member in the rebate both above the leg gripping member and below it, the clamp being an over-centre buckle clamp having a clamp body radially retained on its leg extension member and axially slidable therealong for adjustment of its position between the upper end of the elongate member and the support and a strap providing its leg gripping member, the clamp body comprising a pair of lips received in respective ones of the grooves for laterally retaining the clamp body on its leg extension member; the clamp body extending peripherally around the leg extension member oppositely from the rebate.

Claim 9

A furniture adjustment device for extending the legs of a piece of furniture, the device comprising for each leg a respective leg extender, each leg extender having: an elongate leg extension member, having a rebate extending along its length for at least partially accommodating its leg and a lower end for abutting the floor; a support in the rebate of the leg extension member intermediate its ends, on which a bottom end of the furniture leg can rest to extend it by a distance in the extender from the support to a lower end of the leg extension member; and a clamp for clamping the leg extension member to the leg above the support to secure the extender to the leg, the clamp having a leg gripping member extending across the rebate at a position between an upper end of the elongate extension member and the support to grip the leg and clamp it into the rebate and to restrain pivoting of the extender with respect to the leg by providing abutment of the leg with the elongate member in the rebate both above the leg gripping member and below it, the clamp being an over-centre buckle clamp having a clamp body and a strap providing its leg gripping member, the clamp including upper and lower rims of its body a buckle member pivotally connected to the upper and lower rims at a pivot axis and having the strap adjustably connected to the buckle member and a strap-end-securing means extending between the rims and to which one end of the strap is connected, the buckle member having a strap control point so positioned with respect to the pivot axis that the strap passes radially inwards of the pivot axis when the buckle is closed into a position lying adjacent the clamp body to tension the strap around and grip the leg being extended.

Claim 10

A furniture adjustment device for extending the legs of a piece of furniture, the device comprising for each leg a respective leg extender, each leg extender having: an elongate leg extension member, having a rebate extending along its length for at least partially accommodating its leg and a lower end for abutting the floor; a support in the rebate of the leg extension member intermediate its ends, on which a bottom end of the furniture leg can rest to extend it by a distance in the extender from the support to a lower end of the leg extension member; and a clamp for clamping the leg extension member to the leg above the support to secure the extender to the leg, the clamp having a leg gripping member extending across the rebate at a position between an upper end of the elongate extension member and the support to grip the leg and clamp it into the rebate and to restrain pivoting of the extender with respect to the leg by providing abutment of the leg with the elongate member in the rebate both above the leg gripping member and below it, the clamp being an over-centre buckle clamp having a clamp body and a strap providing its leg gripping member, the clamp including upper and lower rims of its body a buckle member pivotally connected to the upper and lower rims at a pivot axis and having the strap adjustably connected to the buckle member and a strap-end-securing means extending between the rims and to which one end of the strap is connected, the buckle member having a strap control point so positioned with respect to the pivot axis that the strap passes radially inwards of the pivot axis when the buckle is closed into a position lying adjacent the clamp body to tension the strap around and grip the leg being extended.

Claim 11

A furniture adjustment device as claimed in claim 7, wherein each buckle member includes ladder means for adjustable connection of the strap thereto, the ladder means having a bar and an adjacent first slot both parallel to the pivot axis, and the first slot being on a side of the bar opposite from the pivot axis, the strap being connected to the buckle member by passing around the first bar and through the slot.

Claim 12

A furniture adjustment device as claimed in claim 8, wherein the ladder means includes another bar parallel to the one bar and closer to the pivot axis and defining with the one bar a second parallel slot, the strap passing inwards through the first slot, under the one bar, out through the second slot over the other bar beneath the outer run of the strap therearound.

Claim 13

A furniture adjustment device as claimed in claim 9, wherein each clamp includes a strap-end-locating bar extending between the upper and lower rims intermediate the pivot axis and the strap end securing member, an end of the strap being tucked between the clamp body and the strap-end-locating bar.

Claim 14

A furniture adjustment device as claimed in claim 7, wherein the strap-end-securing means is a fixed member extending between the upper and lower rims, the strap being looped therearound and having its end attached back on itself.

Claim 15

A furniture adjustment device as claimed in claim 7, wherein the strap-end-securing means comprises two bars extending between the upper and lower rims as a ladder, a strap end being secured by being wrapped around the two bars, the strap end thereby forming an S shape.

Claim 16

A furniture adjustment device as claimed in claim 7, wherein each clamp includes a locking catch for locking the buckle member to the clamp body against accidental opening of the buckle.