Shelf management device
View Patent ↗A shelf management device including a guide member having a front end and a rear end, and a pusher device guided for movement by the guide member. Wherein the pusher device includes a rotatable spool upon which is wound a flexible drive member, an end part of the drive member being secured to the guide member at or adjacent the front end thereof. A spring is provided to urge the spool for rotation to take up the drive member and thereby apply a load to the pusher device urging the pusher device towards the front end of the guide member.
1. A shelf management device comprising a guide member having a front end and a rear end, and a pusher device guided for movement by the guide member, wherein the pusher device comprises a rotatable spool upon which is wound a flexible drive member, an end part of the drive member being secured to the guide member at or adjacent the front end thereof, a spring separate from the drive member provided to urge the spool for rotation to wind the drive member onto the spool and thereby apply a load to the pusher device urging the pusher device towards the front end of the guide member, and a damping arrangement adapted to damp the rotation of the spool, damping the winding of the drive member onto the spool, and thereby damping the movement of the pusher device arising from the rotation of the spool under the action of the spring.
2. The device according to claim 1 , wherein the drive member comprises a wire or cable.
3. The device according to claim 1 , wherein the damping arrangement comprises a brake member biased against a surface of the spool.
4. The device according to claim 1 , wherein the damping arrangement comprises a viscous fluid based rotary damping arrangement.
5. The device according to claim 1 , wherein the damping arrangement comprises a damper member supporting the spool for rotation.
6. The device according to claim 1 , wherein the damping arrangement damps rotation of the spool in one rotary direction, but the spool is free to move substantially without damping by the damping arrangement in the opposite rotary direction.
7. The device according to claim 1 , wherein a damping load applied by the damping arrangement is controllable, to allow control over the rate of movement of the pusher device.