Supply roll surface drive for a dispensing apparatus

A drive device, technology for supply rolls, applied in the field of supply roll surface drives for dispensing equipment, capable of solving problems of out-of-roundness, insufficient compensation of supply rolls, inequalities

Inactive Publication Date: 2009-01-21
北美SCA组织有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the contact between the Granger's roll and the supply roll is point-to-point in nature and as such it is insufficient to compensate for irregularities within the supply roll such as "out of roundness", wrinkling and uneven surfaces

Method used

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  • Supply roll surface drive for a dispensing apparatus
  • Supply roll surface drive for a dispensing apparatus
  • Supply roll surface drive for a dispensing apparatus

Examples

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Embodiment Construction

[0017] The present invention is derived from the apparatus described in US Patent No. 6,196,102, which is expressly incorporated by reference in its entirety.

[0018] Such as figure 1 As shown, the dispensing device 1 comprises a housing 2 having a rear portion 2a. The housing 2 contains a cover 3 which may be hinged or connected to the rear part 2a using a snap fit or other connection. The lid 3 is held in the closed position by the locking assembly 25 .

[0019] Inside the housing 2 there is a drum 4 on which the roll R of absorbent material is partly wound when the dispenser is in use. The drum 4 may contain a cutting device 5 which rotates with the drum 4 and cuts from a slot in the drum 4 when the drum 4 is driven (see figure 2 )extend. A return mechanism comprising an eccentric arm 7 and a spring 8 helps the drum 4 to complete its rotation.

[0020] A preferred embodiment of the cutting device 5 is described in co-pending US patent application 10 / 812,183, the enti...

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PUM

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Abstract

An apparatus that dispenses a sheet of absorbent material from a roll of absorbent material includes a housing and a drum in the housing. A cutting device is incorporated in the drum. A one-way bearing on a shaft of the drum enables the drum to rotate only in one direction upon activation of the drum. A tensioning device provides tension to a strip of paper material passing between the tensioning device and the drum. The apparatus also includes a supply roll surface drive that controls rotation of the roll of absorbent material. The supply roll surface drive includes two independently rotatable pulleys and a belt wrapped around the pulleys. The belt contacts the roll of paper towels along a plurality of contact points to control rotation of the roll of absorbent material.

Description

technical field [0001] The present invention relates to apparatus for dispensing absorbent material from a roll of absorbent material, such as paper towels, toilet paper or other wiping material. Background technique [0002] In conventional sheet dispensing devices, a supply roll of absorbent material is dispensed incrementally through dispensing openings in the housing. The sheet passes over the supply rolls, while still attached to the rolls, and wraps around tensioners and drums. The roll may contain a cutting or perforating device or a cutting device may be placed at the dispensing opening to separate the sheet from the roll. [0003] A problem with conventional equipment is that as the sheet is being dispensed from the supply roll, the force required to drag the sheet around the tensioner and separate the sheet from the supply roll causes the supply roll to rotate excessively. This over-rotation then results in excess sheet material still attached to the supply roll ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D25/02
CPCG07F11/66
Inventor J·福尔蒙R·韦泽
Owner 北美SCA组织有限责任公司
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