Cleaning and liquid contact with solids – Apparatus – Sequential work treating receptacles or stations with means...
Patent
1995-05-30
1997-02-18
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
Sequential work treating receptacles or stations with means...
134 82, 134166R, B08B 302, B08B 900
Patent
active
056033419
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a stand for washing, disinfecting, drying and optionally blacking and impregnating footwear, and the utilization of the stand In a facility or plant for treatment of footwear.
Footwear which changes users, such as military boots, rental footwear and mining and industrial footwear, must be washed, disinfected and optionally impregnated and blacked after being returned by a user and before being supplied to the next user. This applies to footwear such as shoes, boots, and pull-over boots made of materials such as hide, fur, leather, rubber, plastic or woven fabric.
Today, such treatment is basically done by hand, washing the footwear externally and internally and disinfecting it by spraying a disinfectant liquid onto the inside. Footwear that so requires is then blacked and/or impregnated. Between various of these treatment stages and at the end, if necessary, the footwear is dried.
This manual treatment is time-consuming and labor-intensive and is therefore expensive. The result of the treatment will also vary greatly according to how it is carried out, and it is difficult to control the use of energy and the discharge of water contaminated by the detergent. In addition, the impregnation agent often contains organic solvents that are not compatible with a good working environment.
From SU 534228 there is known a facility for washing, disinfecting and drying of footwear, primarily boots for mine workers. In this facility the footwear is placed with the boot leg down on vertical pipes provided with jets. The vertical pipes with their jets are mounted on a horizontal pipe, and a chain of such horizontal pipes passes through the facility. The footwear is conducted through the facility by the movement of the horizontal pipe in a parallel plane. An operator must sit and continuously place the footwear onto the pipe at one end of the facility during the entire period of operation.
From JP 2-74230(A) and 2-1552432(A) there are known arrangements for washing and disinfecting footwear. The systems shown therein are well suited for freshening up the footwear, but the footwear articles are handled individually or in pairs, and the arrangement shows no solution for the treatment of shoes on a large scale.
EP 380 433(A1) shows a facility having a stand with a piping system for drying and disinfecting footwear, such as ski boots, etc. Here the footwear is suspended on the stand which is connected to a unit that blows hot air through the stand's piping and thereby dries and disinfects the footwear. No washing, impregnation or blacking of the footwear is described here.
The purpose of the present invention is thus to procure an arrangement which affords a semi-automatic method of treatment, i.e., washing, disinfecting and drying, together with optional blacking and/or impregnation of footwear.
This objective is achieved by means of a stand for suspension of several pairs of footwear during treatment, such as washing, disinfecting, blacking, impregnating and drying of the footwear, said stand is constructed of a frame and piping system with vertical pipes between wich are disposed one or more horisontal pipes onto which are mouted a plurality of vertical nozzle pipes for the secure retention of the footwear as well as for internal washing and disinfection thereof, characterized in that the stand is adapted for transport through a facility for sequencial treatment of the footwear, that a plurality of offices serving as jets during washing and disinfection are provided in said nozzle pipes and that that the piping system has a connection means to a cooperative outlet means for detergent and disinfectant in the different units in said facility.
The present invention will now be described with reference to the attached figures, where:
FIG. 1 is a view in perspective of a stand for footwear onto which a few pairs of footwear have been placed.
FIG. 2 is a sectional view of a shoe/boot placed on a nozzle pipe on the stud.
FIG. 3 is a bird's-eye view of a plant for treatment of footwear by using the
Coe Philip R.
Trosterud Mek. Verksted A/S
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