Note: Descriptions are shown in the official language in which they were submitted.
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A C R G R O U N D O P I N Y E N T I O N
Fifty years ago, an atternpt was made to cover a horse-shoe shaped
toilet seat with a paper cover. How~-ever, the arrangernent was
unable to meet the requirernents irnposed upon it, either from
hygenic or technical standpoint (for exarnple, urination on clean roll.
cover falling off the toilet seat, etc.)
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B R I E F D E S C R I P T_O N O F ~r ~1 ~ D 1~ I~ W :C N G S
F I G . 1 is a general view of an arrangement for fitting and changing
of a cover wi-th a tubular portion at each side on a toilet seat.
F I G . 2 is a top view of the arrangement aceording to Fig. 1 with
the front part on both sides cut away.
_ G . 3 is a cross section through the front part of both sides along
line III in Fig. 2.
F I G . 4 is a sectionsimilar to Fig. 3 along line IV in Fig. 2
F I G . 5 is a cross seetion through the end B of the toilet seat along
line V in Fig. 2.
F I G . 6 is a top view of end B of the toilet seat in Fig. 2
F I G . 7 is a cross section similar to Fig. 4 with a elose rc~nge
of end A in Fig. 2
F I G . 8 is a cross seetion through the rear of the toilet seat along
line VIII in Fig. 2
F I G . 9 1 0 , 1 1 , 1 2 are schematic presentations of toilet
seats with different guides for plastie film covering the toilet seat.
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D E T A I L E D D E S C R I P T l O N O F T ll E _ D R A W _N G S
F I G . 1 shGws an arrangement designed as an interchangable unit,
with a toilet seat and cover. This unit consists oE a toilet seat top 1
and a toilet seat below 3, where the toilet seat top 1 is covered by a
strip of film 2 (preferably a plastic strip of film). Ends A & B of
the toilet seat are spaced apart on the opposite side of the pivot.
In the embodiment shown, the toilet seat is narrower at its rear curved
part than at the two sides (a / b).
F X G 2 a n d 3 show toilet seat top 1 with strip of film 2
as well as the two ends A and B of the horse shoe shaped toilet seat
spaced apart.
Housing A and housing 5 are situated in front of the two ends A and B
of the toilet seat top 1, mountable with screws or rivets 13 on the two ends
of the toilet seat below 3. The toilet seat having a rear pivot 8 mounted on
the toilet seat below 3 permits the strip of film 2 to cover the toilet seat
top 1 and to move freely at its rear part.
Housing 4 contins a feed reel with new strip of film 6 which is mounting
up on the toilet seat top 1 at end A. Housing 5 contains a take up reel
of disposable strip of film 7 which takes up the strip of film 2 at end B
of the toilet seat top 1.
Housing 5 also contains a replacable battery 10 as a po~er source and a motor
11 which drives a gear train 14 to whose output the conveying reel 7 is
coupled, automatically by a switch or manual activating lever 15.
F I G . 4 shows housing 5 mounted on the toilet seat below 3 where the take
up reel 7 is rotating in the sense shown by arrow 18 and takes up the strip
of film 2. Roller 16 is guiding the strip of film 2 into the housing 5.
The conveying roller 17 coupled with reel 7 by the gear train 14 (in Fig. 3)
is pulling off the strip of film 2 from the toilet seat top 1 and wounding it
up on the take up reel 7.
F I G . 5 shows the toilet seat top 1 mounted on the toilet seat below
3 at end B of the toilet seat where a cutting blade 9 is mounted on the
connection bar 21.
The channels on both sides of the seat between toilet seat top 1 and toilet
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seat below 3 maintain the guiding pipes 19 and 20 in close relation to the
toilet seat from end ~ to end B.
The tubular portions 12 oE the strip oE ilm 2 are bleng slit by blade 9
before exiting end B of the toilet seat.
F I G 0 6 show end B of the toilet seat with part of the toilet seat cut
away. At end E of the toilet seat, the strip of film is exiting the toilet
seat after the tubular portions 12 have been slit by blade 9.
The connection bar 21 is the only fixed point of the guiding pipes 19 and 20.
Along the toilet seat the guiding pipes are inside the channels between
toilet seat top 1 and toilet seat below 3. Blade 9 is mounted on the connectionbar 21.
F I G 7 shows part of the feed reel 6 in its housing 4 at end A of the
toilet seat. The strip of film 2, mounting the toilet seat at end A, has
the tubular portions 12 at each side of the film fitting inside the channels
between toilet seat top 1 and toilet seat below 3.
With the guiding pipes 19 and 20 inside the tubular portions 12 of the film
and inside the channels at each side of the toilet seat , we have a complete
toilet seat top 1 covered by the strip of fiLm 2.
F I G . 8 shows the rear of the toilet seat and the rear pivot 8 which has
no interference with the toilet seat top 1, the channels between toilet seat
top 1 and toilet seat below 3 or with the guiding pipes 19 and 20. Therefore,
the strip of ~lm 2 is moving freely at the rear part of the toilet seat.
Spring 22 is mountable at the rear so that the toilet seat can stay in a
lift up position when it is not in use.
F I G . 9 a n d 1 2 show various possibilities for guiding the strip
of film as well as arrangements of film containers on a toilet seat.
Tne tubular portions 12 of the strip of film 2 are encircling the guiding
pipes 19 and 20 and the strip of ~ilm 2 is covering toilet seat top 1
as shown in Fig. 5.
To smoothen the movement of the tubular portions of the film on the guiding
pipes, the guiding pipes are provided with holes which allow the air to get
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inside the tubular portions even at end A of the toilet seat. Also to
smoothen the movemen-t of the strip of fi]m 2, the toilet seat is narrower at
its rear curved p~rt as shown in Fig. 1 (a / b). The two rollers 16 and 17
(in Fig. 4) are provided with i.ndividual grooves, to have a better friction
when the strip of film 2 is wound up on the take up reel 7.
The toilet seat in a lift up position, pulled back by spring 22 (in Fig. 8)
is preventing urination on the strip oE fiLm when covering the toilet seat.
Finally, the arrangement described allows the toilet seat on a toilet to be
covered with a plastic strip of film that can be moved from one end to the
other (A to B) by pressing a button (electric) or by activating a lever
(manual).
An arrangement of this kind is not only extremely simple and hance operationallyreliable, but inexpensive.
It provides every user with a clean seat.
Appropriate shapes and a careful selection of the film, permits minimum
friction between the two.
The embodiments described are simple in structure and therefore functional.
They can be mounted on exist mg toiiets.
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