Abstract:
The present invention provides a separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and comprises a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller, the distance extending in a direction perpendicular to the width direction. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes. The outer portions of the protrusion elements on the first roller are arranged in a staggered relationship with the outer portions of the protrusion elements on the second roller such that the outer portions of the protrusion elements on the first roller are partially overlapping with the outer portions of the protrusion elements on the second roller with a radial overlap length, thus forming an undulating passage for a web material between the rollers. Each protrusion element has a maximum width along the width direction within the overlap length, and the sum of the maximum widths within the overlap length of all protrusion elements on one of the rollers is between 5-30%, preferably 12-20% of the web width of that roller.
Abstract:
The present invention provides a separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and comprises at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller, the distance extending in a direction perpendicular to the width direction. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes. The outer portions of the protrusion elements on the first roller are arranged in a staggered relationship with the outer portions of the protrusion elements on the second roller such that the outer portions of the protrusion elements on the first roller are partially overlapping with the outer portions of the protrusion elements on the second roller with a radial overlap length, thus forming an undulating passage for a web material between the rollers. The radial overlap length is between 2-40 mm, preferably 2-20 mm, more preferably 3-12 mm, or most preferably between 4-10 mm.
Abstract:
The invention relates to an end plug (5) for a roll of material to be inserted into a retention mechanism (1), the end plug comprising: a receiving portion (60) for being inserted in the roll of material, an end face (680) for contacting the retention mechanism and a bearing member (70) for being inserted into the retention mechanism. The bearing member comprises a bearing pin (80) comprising a counter surface (82) facing the end face and at least one locking portion (950) for locking the end plug in an end position (250) in the retention mechanism, the locking portion being positioned within a zone (900) defined by a first surface (90') extending towards the end face from an intersection position (910) with the bearing pin, the first surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 117 and a second surface (90'') extending towards the end face from the intersection position, the second surface being inclined with respect to the longitudinal axis of the bearing pin by an angle of 141.
Abstract:
A dispensing unit and a dispenser are provided. The dispensing unit is adapted for use with continuous web material. The dispensing unit comprises a first roller arranged to rotate about a first axis and a second roller arranged to rotate about a second axis. A web path is provided through the dispensing unit and a portion of the web path includes a web passage defined between the first roller and the second roller. The first roller is displaceable between at least a first position and a second position, wherein a first distance is defined between the first roller and the second roller when the first roller is arranged in the first position, and a second distance is defined between the first roller and the second roller when the first roller is arranged in the second position.
Abstract:
A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes at least a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and at least a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with at least one protrusion element extending perpendicularly from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.
Abstract:
A separation unit for separating a web material along preformed lines of weakness. The separation unit has a width direction and includes a first roller having a rotational axis extending in the width direction and a web width extending in the width direction, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller and a web width extending in the width direction. The second roller is positioned at a distance from the first roller. Each of the first and the second rollers is provided with a plurality of protrusion elements being spaced along the rotational axes and protruding perpendicular from the axes. Each of the protrusion elements has a maximum width in the width direction, a maximum radial extension from the rotational axes, an inner portion adjacent to the rotational axes, and an outer portion remote from the rotational axes.
Abstract:
Tapón de extremo (5) para un rollo de material a introducir en un mecanismo de retención (1), incluyendo el tapón de extremo: - una porción de recepción (60) para ser recibida en el rollo de material; - una cara de extremo (680) que define un plano de contacto para contactar el mecanismo de retención; - un elemento de soporte (70) para ser insertado en el mecanismo de retención, estando situada la cara de extremo entre el elemento de soporte y la porción de recepción, incluyendo el elemento de soporte: - un pasador de soporte (80) incluyendo al menos una primera porción (84) de un primer diámetro exterior (d1), una segunda porción (86) de un segundo diámetro exterior (d2), y una tercera porción (88) de un tercer diámetro exterior (d3), estando situada la segunda porción entre la primera porción y la tercera porción, y siendo el segundo diámetro exterior menor que el primer diámetro exterior y el tercer diámetro exterior, donde la tercera porción está colocada más próxima a la cara de extremo que la primera porción; y - al menos una porción de bloqueo (950) para bloquear el tapón de extremo en una posición final (250) en el mecanismo de retención, formando parte la porción de bloqueo del elemento de soporte y estando situada más próxima a la cara de extremo que la segunda porción y la tercera porción del pasador de soporte, donde la porción de bloqueo tiene al menos un diámetro exterior (d4) que es mayor que los diámetros exteriores primero, segundo y tercero del pasador de soporte.
Abstract:
Dispenser for rolls (1, 2) of tissue paper, the dispenser comprising a housing (10) for accommodating at least two of said rolls (1, 2), an access opening (14) defined in said housing for allowing access to the rolls, and a closure (21) for selectively closing a portion of the access opening, the closure being slideably mounted to the housing between a first position closing a first portion (19) of the access opening preventing access to a first roll (1) of said rolls and a second position closing a second portion (20) of the access opening preventing access to a second roll (2) of said rolls, wherein the closure comprises a body (22), a first wall (33) movably connected to the body at a first edge (39) of the first wall; and a second wall (34) movably connected to the body at a first edge (39) of the second wall, wherein the first and second wall are urged toward each other to respectively position second edges (40) of the first and second walls opposite to the first edges in a blocking position in which sliding of the closure into the second position is blocked until a predetermined amount of paper of the second roll (2) has been dispensed and in which sliding of the closure into the first position is blocked until a predetermined amount of paper of the first roll (1) has been dispensed, wherein the closure comprises a first spring (45) urging the first wall toward the second wall and a second spring (45) urging the second wall toward the first wall, the spring force of the first and second springs being configured so as to automatically return the closure into the first position when sliding of the closure into the second position is blocked and to automatically return the closure into the second position when sliding of the closure into the first position is blocked.