Fixing device for a cavity wall
AssigneePlas Plugs Limited
InventorPaul S. Hepworth
Life of this patent
Estimating the term…
Abstract
A fixing device includes a sleeve portion and an engagement portion which are spaced apart but which are interconnected by two flexible strut members, each of which includes short and long arms. A screw can be inserted through a central bore in the sleeve portion so that its end engages a bore in the engagement portion to initially hold the engagement portion in a fixed position relative to the sleeve portion and thereby resist flexing movement of the strut members. Upon subsequent tightening of the screw, the sleeve and engagement portions are caused to move together, thereby flexing the strut members outwardly.
Claims13
A fixing device for a cavity wall, comprising:
- a sleeve portion adapted to receive a fixing element therethrough;
- an engagement portion spaced from the sleeve portion and adapted to engage an end portion of the fixing element;
- at least one flexible strut member connecting the engagement portion to the sleeve portion, the at least one flexible strut member comprising a relatively long arm connected to the engagement portion and a relatively short arm connected to the sleeve portion, the relatively long arm and the relatively shot arm being connected together at a point;
- and
- a finger extending forwardly of the device substantially from the point where the relatively long and short arms are joined together;
- the arrangement being such that engagement of the fixing element with the engagement portion holds the latter in a fixed position relative to the sleeve portion and thereby resists flexing movements of the at least one strut member, and tightening of the fixing element causes the engagement portion to move towards the sleeve portion and thereby causes the at least one strut member to flex outwardly of the device and the point at which the relative long arm and the relatively short arm are joined together to move forwardly as well as outwardly of the device, wherein the sleeve portion is radially expandable.
A fixing device for a cavity wall, comprising;
- a sleeve portion adapted to receive a fixing element therethrough;
- an engagement portion spaced from the sleeve portion and adapted to engage an end portion of the fixing element;
- at least one flexible strut member connecting the engagement portion to the sleeve portion, the at least one flexible strut member comprising a relatively long arm connected to the engagement portion and a relatively short arm connected to the sleeve portion, the relatively long arm and the relatively short arm being connected together at a point;
- and
- a finger extending forwardly of the device substantially from the point where the relatively long and short arms are joined together;
- the arrangement being such that engagement of the fixing element with the engagement portion holds the latter in a fixed position relative to the sleeve portion and thereby resists flexing movements of the at least one strut member, and tightening of the fixing element causes the engagement portion to move towards the sleeve portion and thereby causes the at least one strut member to flex outwardly of the device and the point at which the relative long arm and the relatively short arm are joined together to move forwardly as well as outwardly of the device, and wherein the sleeve portion has formations on its outer surface for engaging a side wall of a bore in a cavity wall in which the device is inserted in use.
Dependencies are inferred from the claim text.