GB2541585A - Self raising gate bottom - Google Patents

Abstract

A field gate, or the like, where the gate comprising a pair of leaves. The lower (vertically movable) of the two leaves (2) is connected, via uprights (11) to two wire cables 3, 6 that are located around a number of pulleys 9, 13 located in the upper (fixed) section 10 of the gate. The whole of the gate, i.e. the fixed and movable sections pivots about a vertical gate post 4, 12. One end of each cable is fixed to the gate post (Fig 1, 1) via adjusters, whilst the other is fixed to the lower movable leaf. As the gate opens it moves through an arc (Figs 1 3inc), tensioning the cable and causing the cable to lift the movable lower portion 2 vertically upward. The more the gate is pushed open the greater the lift. Releasing the gate allows the lower leaf to fall, under gravity and thus the gate closes. The gate is intended for use on rutted, uneven or sloping ground such as agricultural land and may be adjusted to provide some clearance under it to allow passage over such ground. When closed the clearance under the gate is minimal thereby preventing animals from moving under the gate.

Description

Self Raising gate bottom

This invention relates to a device for a self raising a gate bottom.

When a gate is fitted, a self raising gate bottom can be added to alleviate any gap underneath the bottom of the gate.

If a gate is fitted onto a sloping drive there can be multiple issues, first being a large gap underneath that is for clearance of the floor, this can cause the gate to be unsightly. There is also the problem of the gap being big enough for small pets to get under. Therefore to overcome these issues a gate with a self raising bottom can be installed which will keep the bottom of the gate two inch above the ground on opening and in closed position.

Two wire ropes, are attached to the bottom of the gate and run up through the frame. A hole is then drilled out of the frame allowing the wires to go through a drilled hole in the gate post and attached to wire rope adjusters on the back on the gate post. The self raising gate bottom will be pulled up by the wire ropes which will cause it to telescope into the bottom bars of the gate with movement of the gate. Stopping there being any large gaps underneath the gate in any position, open or closed.

Drawing 1-2 figure 1 shows the gate in closed position with the wire running up the gate.

Drawing 1-2 figure 2 shows the gate in opening position.

Drawing 2-2 figure 1 shows an aerial view of the gate in closed position.

Drawing 2-2 figure 2 shows an aerial view of the gate in opening position.

Drawing 2-2 figure 3 shows an aerial view of the gate in open position.

In 1/2 figure 1 two wire ropes 3,6 is attached to a wire rope clamp 1 which is attached to the self raising gate bottom 2. The wire rope then runs up through the two of the railings 11,15 to two separate v pulleys 9,13 which are hidden in the box section frame 10 behind two separate inspection chambers 16,17 which are two pieces of metal which can be attached via hinge or bolt for ease of access to check the wire ropes 3,6 and pulleys with ease, these then run along the frame to drilled holes 5, 14 where they will come out of the frame and run along to two drilled holes 8 in the gate post 4 which then go through the gate post out to two wire rope adjusters 7.

For example there is a gate with a large gap underneath due to clearance and a pet owner is worried about the chance of the pet escaping, with a gate with a self raising bottom two wire ropes 3,6, attached to the wire rope adjusters 7, will pull the self raising bottom 2 up using the momentum of the gate allowing there to be a gate fitted no matter the steepness of the sloping drive. This will eliminate an unsightly and risky gap at the bottom of the gate.

Figure 2 shows the gate in opening position, the gate sits on the hangers 12, as the gate opens the momentum will pull on the wire ropes 3,6 making it taught pulling the self raising gate bottom 2 up which will then lift with the rails 11,15 telescoping into the gate tubes allowing there to be raise on the gate. 2/2 Figure 1 shows the gate from an aerial view in a fully closed position, in this position the wire ropes 2,7 will be at its slackest meaning the self raising gate bottom will be at its lowest point. In figure 2 the gate is opening tightening the wire ropes 2,7 using the momentum of the gate pulling the self raising gate bottom upwards. In figure 3 the gate is in open position with the wire ropes 2,7 being at their most taught meaning the self raising gate bottom will be at desired height for clearance.

Claims (4)

Claims 1. A self raising gate bottom mechanism for lowering the bottom of the gate to stop animals passing through and rising when the gate is opened to allow movement over sloping ground. 2. A gate lowering and raising mechanism as in 1 which is solely powered by the gate movement via cables and pulleys. Claims

1. A self raising gate bottom mechanism for lowering the bottom of the gate to stop animals passing through and rising when the gate is opened to allow movement over sloping ground.

2. A gate lowering and raising mechanism as in 1 which is solely powered by the gate movement via cables and pulleys. Claims

3. A self-raising gate bottom as in claiml, when the gate is opening the distance from the gate post to the gate increases. This increase in distance creates pull on the wire rope, subsequently pulling up the bottom of the gate.

4. A self-raising gate bottom as in claim 1, when closing the gate it works opposite as in claim 3. With the reduction in distance from the gate post to the gate the wire will subsequently become less taut. This will alleviate strain on the wire ropes thus allowing the bottom of the gate to descend back into its original position.