EP0889701A1

EP0889701A1 - Wiping material dispenser apparatus with a device for loading a spare roll

Info

Publication number: EP0889701A1
Application number: EP97915543A
Authority: EP
Inventors: Maurice Granger
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-29
Filing date: 1997-03-24
Publication date: 1999-01-13
Anticipated expiration: 2017-03-24
Also published as: AU2298097A; ES2142669T3; WO1997036529A1; ATE188855T1; DE69701188D1; EP0889701B1; DE69701188T2; PT889701E; FR2746621A1; FR2746621B1; GR3033145T3

Abstract

An apparatus including a loading device and a device for gripping and retaining the free end (B1) of a sheet wound into a spare roll extending from a transverse plate (15) and arranged in front of a drum over all or part of the length thereof. The gripping device is actuated by closing the cover of the apparatus or by a mechanism extending from the apparatus housing. The gripping device is substantially aligned with the gap between the drum (6) and a pressure element (10) so that the paper sheet from the spare roll may be inserted.

Description

APPARATUS FOR DISPENSING WIPING MATERIAL

WITH LOADING DEVICE

OF A RESERVE ROLL

The invention relates to the technical sectors of wiping paper dispensing devices of the paper towel, toilet paper, paper towel and the like made of any paper-based material, paper wadding.

The invention also relates to the technical sectors relating to these devices within the framework of an automatic or semi-automatic operation with a distribution of the strip of paper drawn in an unfolded flat form, or in a folded form.

It is known in this type of material and dispensing device to provide for the use of a reserve roll capable of being placed in the device before the finishing of the service roll. It is recalled that these rollers are in the form of a coil of material wound with a support mandrel, in cardboard material for example, and arranged in a horizontal plane in the device.

Various studies have been carried out in particular by the depositor to set up a device for loading a reserve roll with means for controlling the diameter of the reel of material being unwound.

There is particularly a reserve roller loading device for a dispensing device of this kind described in French patent n ° 95/12107. We briefly recall the main arrangements of the dispensing device.

The apparatus for dispensing wiping material, toilet paper, paper towels, paper towels and the like, comprises a casing on which a cover is articulated, said casing being arranged with two support flanges perpendicular to the bottom face of the casing , a drum being arranged transversely in the lower part of the casing, between the support flanges, including an integrated cutting device, the rotation of the drum being obtained by the pulling effect of a strip of paper by the user , a pressing element (8) being attached and positioned above the drum and held between the flanges of the casing, the lower part of the latter having a slot allowing the passage of the strip of paper, the roll of material being held between upper flanges arranged, a receptacle being provided in the bottom part at the rear of the device.

In this request, the loading device has the function of controlling the end of distribution of the initial service roller (R1) positioned beforehand in the receptacle in order to set up a new so-called "reserve" roller (R2) positioned between the flanges , the loading device includes first means positioned and fixed inside the cover in a position substantially facing the place of passage and introduction of the strip of material on the drum for its cutting, and second complementary means arranged from the casing of the device, said second means being armed by closing the cover and being capable of controlling the end of unwinding of the first roller (R1) and of controlling the actuation of said first means arranged on the exhaustion cover of the first roller for loading the strip of paper from the so-called "reserve" roller (R2).

Various means are exposed in this patent to allow the operation of the claimed device.

In this patent it is provided that, when the reel of material comes to escape from its gripping support means, after ordering of the device for loading the reserve roll, the end paper strip of the latter is found hanging in front of the drum and the pressing element pending its introduction within the interval between the drum and said pressing element. In practice, it is when the cover of the appliance is closed that a plate-type means presents the free end of the strip of paper coming from the reserve roll between the drum and the pressing element in order to '' gradually take over and unwind the spool of the reserve roll.

In this design which is perfectly reliable, in terms of operating mechanisms, this requires the use of pusher means, of the tab type, associated with the closure cover of the device. This pusher means acts on the free end of the paper strip by controlling a linkage and slide mechanism associated with a testing member capable of detecting the expiration of the roll reel in service after the distribution of its last unit. of paper. A pusher means is capable of allowing and facilitating the introduction of the paper between the drum and the pressing element. This arrangement is satisfactory in principle, but it is subjected to a good position by the operator of the free end of the strip of the reserve roll disposed in the upper part of the device. Indeed, if the reserve roll is not sufficiently unwound on the front face of the device facing the drum and the pressing element when the free end of the strip of paper between the drum must occur and the pressing element, it may happen that the pushing means is not sufficiently or not in contact with the paper so that it does not strictly provide any pushing effect and the loading operation is not assured. This is particularly troublesome since the device does not work. The operator, believing that he has put the device in place normally, if he does not perform a functional test as a precaution, can leave this device to the public pending his next inspection visit.

Provision has also been made, in patent No. 92/12107, for the use of a clamping plate for the paper strip. However, its implementation remains very limited and impractical.

Also, one of the aims sought, according to the invention, was to improve and perfect the device for loading the reserve roller while avoiding the drawback indicated so that the operator who is responsible for the upkeep and maintenance of this device is systematically brought to position in a very precise manner the strip of paper coming from the reserve roll with a view subsequently to its positioning to ensure continuous operation of the device.

Another object sought after according to the invention was to help the operator to determine the degree of unwinding of the service roll and define the movement.

These and other objects will become apparent from the following description.

According to a first characteristic of the invention, the loading device comprises a clamping and retaining device for the free end of the strip of the reserve roll positioned from a transverse plate established in front of the drum on all or part of its length, the clamping device being urged by the closing of the cover of the apparatus or by a mechanism arranged from the casing of the apparatus, the clamping device being located substantially opposite the gap formed between the drum and the pressing element to allow the introduction of the paper strip from the reserve roll.

According to another characteristic, the clamping device comprises a screed shape disposed on the transverse plate, on the interior side of the device, receiving a free-rotation roller, and underlying this roller is arranged a tab with a window allowing passage and the articulation of a tilting pawl shaped as an "S", the pawl having a first end passing through the window of the tab and a second end projecting outwardly from the plate to be urged by the closing of the cover in order to grasp and pinch the end of the paper strip.

These characteristics and others will emerge clearly from the following description. To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawings where:

FIG. 1 is a front view of the wiping material dispensing device arranged according to the invention,

FIG. 2 is a partial view, before mounting, illustrating the various components capable of implementing the clamping and positioning of the free end of the strip of the reserve roll and then its control,

FIG. 3 is a side view of the dispensing apparatus as a whole, facing the control mechanisms of the clamping device of the end of the paper strip of the service roll, the apparatus being closed,

- Figure 4 is a view similar to Figure 3 in which the cover of the apparatus is opened allowing, on the one hand the loading and pinching of the free end of the reserve roller as well as the evacuation of the support sleeve of the coil used,

FIG. 5 is a side view illustrating the operation of the dispensing device with the presence of two coils of material, one in the dispensing phase, the other on standby,

FIG. 6 is a partial plan view illustrating in a schematic manner the articulations and orientations, on the one hand of a tester member and on the other hand of the device for controlling the diameter of the reel of material disposed in the upper plane of the device, - Figure 7 is a partial plan view illustrating the control mechanisms of the clamping device of the free end of the paper strip of the reserve roll.

In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

This dispensing device, referenced as a whole by (1), is arranged with a casing (2) made of plastic material or otherwise on which is hinged a cover (3) made of similar material. The casing receives two lateral outer wings (2a - 2b), as well as two support flanges (4 - 5) attached perpendicular to the bottom face of the casing and held by snap-fastening or the like at the base thereof. Inside the casing is arranged, transversely between the flanges of the casing, a drum (6) including a cutting device (7) integrated and operating, for example, but not limitatively under the conditions of French patent n ° 2.332.215 .

The drum (6) can be arranged in any suitable manner. The rotation of the drum is effected by the pulling effect of a strip of paper by the user, using an eccentric means (8) associated with a return and launch spring (9 ) attached to one of the flanges (4) of the housing. A pressing element (10) is attached and positioned above and resting on the drum transversely and in the same axial plane, being held between the notches (4a - 5a) established for this purpose in the flanges (4 - 5) of the casing. In its lower part, the casing has a transverse slot (11) allowing the passage and the distribution towards the outside of the paper strip intended to be grasped by the operator. A follower roller (12) is positioned in 8

the lower part of the device.

The roll (R1) of material is held by retractable arms (12) conforming to the flanges (4 - 5) and they are arranged with end caps (13) capable of allowing the rapid assembly of the sleeve of the roller in question.

The loading device is capable of being implemented when the use roller (R1) is at the end of service. Under these conditions, the roll at the end of service must be moved by an operator and be positioned in the bottom part and at the rear of the receptacle device (14). Another so-called reserve roller (R2) is put in place.

The purpose of the loading device is to control the end of distribution of the initial service roller (R1) at the end of use, in order to put the new roller (R2) in the loading phase.

This loading device therefore includes first means which are capable of gripping and maintaining the free hanging end of the strip coming from the new roll (R2) placed in reserve, as well as second complementary means arranged from of the device housing. These latter means are capable of detecting the end of the unwinding of the first roller (R1) and of controlling the actuation of the first means ensuring the maintenance and retention of the strip end of the reserve roller (R2).

According to the present invention, the cover of the device is internally smooth and does not include any particular added shape.

The device includes a clamping and retaining device the free end (B1) of the strip of the reserve roller or of the first service roller used and is positioned from a transverse plate (15) established in front of the drum (6) over all or part of its length and therefore of the device. This transverse plate (15) is advantageously fixed with quick disassembly and by snap-fastening on the side and flanges (4 - 5) of the device capable of holding the drum. This transverse plate is articulated at its base by fingers (15a) penetrating into openings (4a - 5a) formed on the abovementioned flanges (4 - 5). The upper part (15b) of the transverse plate is arranged to receive the clamping and retaining device, referenced as a whole by (16), of the free end (B1) of the strip of paper from the reserve roll. This device (16) is arranged in a plane such that it is located substantially opposite the gap formed between the drum (6) and the pressing element (10) to subsequently allow the introduction of the strip of paper issuing of the reserve roll between them. This device comprises a yoke shape (16a) arranged on the transverse plate (15), on the inside of the device, receiving, with free rotation, a roller (17). Underlying this roller is a tab (18) having a window (18a) or internal cutout allowing the passage and articulation of a pawl (19). This pawl is articulated on an axis (20) established and positioned in the lower part of the yoke. This pawl is profiled in a substantially elongated "S" configuration with a first end (19a) capable of passing through the window (18a) established on the aforementioned tab (18), and the other end (19b) capable of projecting externally from the transverse plate (15) through a complementary window (15c) formed thereon. Advantageously, this tilting pawl (19) is free and is not biased by any return means. Its inner end (19a) is advantageously arranged with a gripping zone (19c) such as a rubber pad or 10

equivalent. In the non-stress phase, the tilting pawl (19) is held in the lowered position. Its inner end (19a) abuts against the inner edge (18a) of the receiving tab (18) while its outwardly projecting end (19b) is located substantially in a plane projecting perpendicular to the plane of the transverse plate ( 15). This pawl (19) is armed when the cover (3) of the device is closed. Indeed, the front inner face (3a) of the cover is capable of coming to bear and pushed against the projecting part (19b) of the pawl, thereby ensuring its pivoting and the contact of its part (19a) against the roller. It is therefore understood that, during the loading of the reserve roller (R2), the operator must present the free end (B1) of the reserve roller in a position such that it appears opposite the device (16) as described. The strip (B1) of paper is thus held firmly between the tilting pawl (19) and the roller (17) and this throughout the closing phase of the cover (3) on the device. This cover acts under continuous pressure on the device (16) as long as the latter and the corresponding and associated transverse plate (15) remains in a position of separation with respect to the drum (6) and the pressing element (10). It is thus understood that the reel of reserve material remains in this position as long as the clamping device (16) is not actuated, following a particular event corresponding either to the opening of the cover, or to the intervention of 'An intermediate mechanism causing the release of the tilting pawl (19).

If we consider that the service roller (R1) has been moved from its initial high position between the tips to be positioned in a receptacle (14) established in the bottom of the device, we observe then that we can insert and position the reserve roller (R2) in the upper part of the device. The service roller (R1) continues to be unwound, the strip of paper bypassing from the rear, as described in patent No. 95/12107, the drum (6) and the pressing element (10).

In the French patent n ° 95/12107 of the applicant, a particular mechanism has been described associated with a tester member (20) intended to identify the end of the service roller (R1) located in the receptacle (14). We will now describe the various components of the aforementioned mechanism which are capable of acting directly on the clamping device (16) and retaining the paper strip (B1) coming from the reserve roller (R2) when the cover is closed, or of the service roller (R1) at the start of the cycle.

The control and release mechanism of the clamping device (16) is implemented as follows. The testing member (20) is arranged from a profiled articulated support piece (21), forming a lever, arranged in parallel along the flange (4) of the device. This lever (21) can be moved backwards under the pushing effect produced by the oblique lower profile (3a) of the cover (3). Thus, in its front part, the hook-shaped lever (21a) and it bears against said lower profile (3a) of the cover. Raising the cover causes the lever (21) to be raised and tilted backwards causing the other mechanisms. Said lever (21) is subject to a return means (22) of the spring type, one end (22a) of which is fixed to the base (2a) of the casing and the other end (22b) at the rear of the support part. (21). The positioning of another spring (23) is provided, one end (23a) of which is hooked on the eccentric (8) for launching the drum and the other end (23b) is fixed on a fixed point (21b) established in the rear part of the lever (21). The rear part of the lever is arranged to receive a horizontal plate (24) formed integrally with the lever (21) and receiving an axis (25) projecting outwardly to engage in a curvilinear lumen (4c) established in the flange (4) next to the device. This axis (25) is capable of allowing the attachment of a slide (26) arranged in a longitudinal plane along the flange (4) of the device. This slide comprises, in its rear part, a plate (26a) having an oblong opening (26b) engaging on the aforementioned axis (25), while it extends over a great length towards the front of the apparatus having a hook shape (26c) adjusting and cooperating on a finger (27) established on the transverse plate (15) support of the clamping device (16).

A return spring (28) is arranged with one end (28a) on a point (29) of projection formed on the transverse plate (15) and the other end (28a) anchored at a fixed point (30) of the wall of the device.

The tester (20) is arranged articulated with respect to the flange (4) of the device. This comprises, for example, two flat strips (4e - 4f) parallel and supeφosed having openings (4e1 - 4f1) for positioning the centering finger (20a) and articulation formed on the test member (20). Between the flat strips (4e - 4f) is provided a window (4g) allowing the passage and the articulation of the free arm (20b) of the test member (20). The latter comprises in axial overflow an upper finger (20c) allowing the fixing of an elastic return means (38), the other end (38a) of which is anchored at a fixed point (4e2) of the upper flat strip (4th) . The tester (20) comprises a lower finger (20d) which is guided and which penetrates into a tongue (29) articulated through an oblong lumen (29a). This finger (20d) abuts against the horizontal plate established in the rear part of the lever (20) driving the articulation thereof. The tongue (29) is guided horizontally through two plates (30a - 30b) supeφosées fixedly positioned on the side of the fixed flange (4) of the housing. This tongue (29) is very long and is capable, by its front part, of constituting an abutment plane (29a) of a hook-shaped part (15e) formed peφendicularly on the transverse plate (15) supporting the device. pinching (16). This hook shape (15e) is established in the extension of the wing (15f) of the transverse plate (15) on which are fixed and articulated the slide (26) and the return means of the transverse plate. Thus a limitation of tilting towards the rear of the transverse plate (15) is defined.

It is now appropriate, with reference to the different figures of the drawings, to explain the operating mode of the apparatus and of the loading device in particular, while recalling that the structural elements of the roller of the cutting device may vary.

In the initial loading phase of the device, the operator positions a first service roller (R1) and presents the end of the paper strip (B1) opposite the pinch device (16) formed on the transverse plate ( 15).

When the cover (3) is closed, the inclined lower part (3a) of the latter, adjacent to the opening zone, comes to bear gradually, on the one hand against the projecting end (19b) of the tilting lever (19) of the clamping device (16) causing the paper strip (B1) to be pinched, and on the other hand pressing against the lever (21) disposed in the casing (2). The lever (21) is thus raised then pushed backwards causing the angular pivoting of the tester member (20) until the latter comes substantially to penetrate into the cutout (31a) formed on the transverse plate (31) rear of the casing behind the drum (6). Simultaneously, the rearward tilting of the lever (21) causes the slide (26) to be driven towards the rear and the support transverse plate (15) of the clamping device (16) to be folded back against the various return springs. This also causes the testing and pivoting of the testing member (20) until its arm (20b) comes substantially opposite the cutout (31a) or slot established on the rear plate (30) behind the drum. . The tongue (29) associated with the tester member (20) holds the transverse plate (15) by the effect of the hook (15e). Having no service roller (R1) located in the bottom part of the receptacle, the tester (20) is not subject to any counter-support and it can freely, by the effect of displacement of the lever, penetrate into the aforementioned window (31a) by driving the horizontal tongue (29) in a rear advancing movement by an articulation effect until the hook part (15e) associated with the transverse plate (15) is released. pinch device (16). This hook part (15e) is then released and, thanks to the detent effect of its return spring, the transverse plate (15) supporting the clamping device rocks backwards. By this effect, the tilting lever (19) is released from the support of the cover (3) and by gravity it returns to its initial position. It therefore releases the paper strip (B1) from the roll. By the effect of the rearward displacement of the transverse plate (15) associated with the clamping device (16), the paper strip (B1) is introduced between the drum (6) and the pressing element (10).

The machine then works normally under the effects of the paper pulling by the user.

When the maintenance officer visits the device to check the condition of exhaustion of the material reel (R1), it can then move the reel in service (R1) and position it in the bottom of the receptacle (14). It also positions a reserve roller (R2) in the upper part of the device and it proceeds in the manner described above to pinch its free end in the device (16) designed for this purpose.

After closing the cover (3), the reserve roller (R2) has its free end (B1) of tape held by the device (16), while the tester (20) is positioned, after movement of the lever (21 ), against the paper strip (B1) from the service roller (R1) still being dispensed. In this case, the pivoting of the tester member (20) is not sufficient to make the hook part (15e) escape from the support plate of the clamping device, outside the support plane of the tongue (29). The device then allows the continuous distribution of the service roller (R1) until it has been used up in order to finally release the tester (20) and its action on the slide (26) by the movement of the tongue ( 29) with the tilting of the transverse plate (15).

Furthermore, and according to an important provision of the invention, the testing member is capable of providing an additional function for detaching the paper strip from the service roll during the finishing phase. Due to its length, the test member comes to bear on the paper strip of the roll to be finished. During the rotation of the drum, for the last strip of paper to be dispensed, this is glued to the support sleeve of the spool, according to a known technique to allow winding. Due to the lightness of the sleeve, the drum, by turning, drives the paper, and therefore the sleeve associated with it. The latter comes into abutment against the rear face of the tester member which provides a counter-support function by causing the paper to take off relative to the sleeve and therefore its ejection into the bottom of the receptacle.

The advantages of this arrangement result in the better holding of the end of the waiting paper strip. There is an obligation for the operator to position it properly, otherwise the device is no longer able to operate. Better reliability is therefore obtained under the conditions of use of the device.

In addition, there is provided in the upper part of the device, a member (32) capable of controlling the unwinding of the upper roller. This member (32) is established in the form of a vertical plate whose ends (32a - 32b) have projecting fingers (32c - 32d) which fit into fixed parts (4g - 4h) of the flange (4) of the device. The plate (32) thus has on one side an overhanging inner tongue (32e) coming to bear against the edge (B2) of the coil (R1 - R2) and, on the other side an overhanging tab (32f) advantageously having a colored area (32g) for viewing. This plate (32) is thus articulated so that, when the diameter of the coil is reduced so as to escape the grip of the plate (32), the latter pivots against an elastic means (33) of reminder. The visual element is then moved slightly to be in front of an identification and marking window (3b) formed on the cover (3). This means that the operator can charge the device again. The elastic means (33) formed on the plate (22) is established for example in the form of a tongue, the free end (33a) of which rests against a fixed plate (4g) of the member (32) and the other end (33b) thereon.

In addition, it should be noted that the bottom of the device housing has a hinged flap (2b) allowing the sleeve to be removed from the service roll finished. The joint is obtained by a simple shrinkage of material. It is the raising of the cover that causes the shutter to close.

Claims

- 1 - Apparatus for dispensing wiping material, toilet paper, paper towels, paper towels and the like, for automatic or semi-automatic distribution, with a distribution of the drawn strip of paper in a folded or unfolded form, of the type comprising a casing (2) on which a cover (3) is articulated, said casing being arranged with two support flanges (4 - 5) peφendicular to the bottom face of the casing, a drum (6) being arranged transversely in the lower part of the casing, between the support flanges (4 - 5), including an integrated cutting device (7), the rotation of the drum being obtained by the pulling effect of a strip of paper by the user , a pressing element (10) being attached and positioned above the drum and held between the flanges (4 - 5) of the casing, the lower part of the latter having a slot (11) allowing the passage of the strip of paper, the roll of material being held between d es upper flanges (12) arranged, a receptacle (14) being provided in the bottom part at the rear of the device, the device being of the type comprising a loading device including first means associated with the cover (3) in a position substantially opposite the place of passage and introduction of the strip of material on the drum for its cutting, and second complementary means arranged from the casing of the device, said second means being armed by closing the cover and being capable of controlling the end of the unwinding of the first roll (R1) and of controlling the actuation of said first means arranged on the cover with exhaustion of the first roll to load the strip of paper coming from the roll called " reserve "(R2). characterized in that the loading device comprises a clamping and retaining device for the free end (B1) of the strip of the reserve roll positioned from a transverse plate (15) established in front of the drum on all or part of its length, and in that the clamping device is urged by the closing of the cover of the apparatus or by a mechanism arranged from the casing of the apparatus, the clamping device being located substantially opposite the interval formed between the drum (6) and the pressing element (10) to allow the introduction of the paper strip from the reserve roll.

- 2 - Apparatus according to claim 1, characterized in that the clamping device comprises a screed shape (16a) disposed on the transverse plate (15), inside of the apparatus, receiving a free roller a roller (17 ), and in that underlying this roller is arranged a tab (18) with a window (18a) authorizing the passage and the articulation of a tilting pawl (19) profiled in "S", and in that the ratchet has a first end (19a) passing through the window (18a) of the tab and a second end (19b) projecting outwardly from the plate to be urged by the closing of the cover in order to grasp and pinch the end of the strip of paper.

- 3 - Apparatus according to claim 2, characterized in that the pawl (19) is mounted free on an axis (20) positioned in the lower part of the yoke, said pawl not being secured by a return means, and in that the inner end of the pawl is arranged with a gripping zone (19c) to come into contact with the roller when its tilting while pinching the free paper strip.

- 4 - Apparatus according to claims 1, 2 and 3, characterized in that the transverse plate (15) support of the clamping device comprises a wing (15f) whose end is arranged in the form of a hook (15e), said hook part cooperating with one of the components of the control and release mechanism of the clamping device during the finishing phase of the service roller.

- 5 - Apparatus according to any one of claims 1, 2 and 4, characterized in that the control mechanism and release of the clamping device comprises a tester member (20) disposed from a support piece (21 ) forming a lever arranged along the flange (4) of the device, said lever being urged by the closing of the cover and causing the articulation of the testing member to come into a plane internal to the device, said testing member coming resting against the paper strip coming from the service roller in the positioning phase in the apparatus of a service roller and a reserve roller, © in that the testing member is associated with a tongue ( 29) sliding capable of cooperating in certain operating phases with the hook part (15e) of the transverse plate (15), and in that a slide is secured and articulated to the lever-forming part (21), the end of the slide being hooked on ia transverse plate to ensure its controlled tilting using an elastic return means.

- 6 - Apparatus according to claim 5, characterized in that the lever (21) is arranged in its front part to form a hook (21a) and come to bear against the inner profile (3a) of the cover, said lever being subject to a return means fixed relative to the housing, the rear part of the lever being arranged with means allowing the articulated connection with the slide (26) coupled to the cross plate.

- 7 - Apparatus, according to claims 5 and 6, characterized in that the testing member (20) is articulated relative to the flange (4) of the device, said flange having a window (4g) allowing passage and l articulation of the free arm (20b) of the tester member against an elastic return means (28), said tester member (20) being arranged with a finger (20d) guided and positioned in the cooperating tongue (29) with the transverse plate (15).

- 8 - Apparatus according to claim 5, characterized in that the testing member (5) performs an additional function by allowing the release of the support sleeve of the reel during the distribution of the last strip of paper from the service roll. end of use.

- 9 - Apparatus according to claim 1, characterized in that the housing of the apparatus has, in its bottom, an articulated flap allowing the ejection of the finished sleeve when the lid is opened.