Roll holder for easy removal of pieces of paper from a paper roll

Abstract

A roll holder 1 for easily removing pieces of paper from a paper roll has a base 3 with a core element 5 attached to it over which the paper roll can be arranged. The core element 5 is formed by a rod with a straight part 5 A and a helically twisted part 5B. The roll holder 1 further has a head piece 9 with a pin 11 attached to it and a sleeve 13 surrounding it, which sleeve is provided with external screw thread 14 and is screwed into part 5B of the core element 5. A coil spring 15 is arranged over the pin 11, which coil spring is enclosed between the head piece 9 and the sleeve 13, so that the head piece 9 can be pressed towards the sleeve 13 against the spring force, thereby reducing the distance between the clamping surfaces on the base 3 and the head piece 9 and preventing the paper roll from rotating.

Description

[0001] Roll holder for easy removal of pieces of paper from a paper roll

[0002] DESCRIPTION:

[0003] Technical field of the invention

[0004] The invention relates to a roll holder, in particular for a kitchen roll, which can have a roll of kitchen paper or the like, pieces of paper of which are mutually separated by cuts arranged along a line, along which the pieces of paper can be tom off, comprising: a base provided with a base surface with which the base can be placed on a surface, as well as a first clamping surface that faces away from the base surface, a core element over which the paper roll can be arranged and which is attached with one end to the base on the side of the first clamping surface and extends perpendicular to the first clamping surface, which core element is provided near the other end with a space extending helically between boundaries, a head piece provided with a second clamping surface that faces the first clamping surface, a pin that is attached with a first end to the head piece on the side of the second clamping surface and extends perpendicular to the second clamping surface, and a coil spring that is arranged around the pin and is in contact with the head piece with a first end and is enclosed between the head piece and the core element in such a way that the head piece can be pressed against the spring force towards the core element and thereby reduces the distance between the two clamping surfaces, By pressing the head piece, the paper roll present between the clamping surfaces can be clamped, so that pieces of paper can be easily removed (tom off) from the paper roll.

[0005] Background of the invention

[0006] Such a roll holder is known from US 6 929 213 A. This known roll holder is suitable for paper rolls with a specific height. Rolls with a height deviating too much from this cannot be used in the known roll holder. Summary of the invention

[0007] An object of the invention is to provide a roll holder of the type described in the opening paragraph in which paper rolls of various different heights can be used. To this end, the roll holder according to the invention is characterized in that it further comprises a sleeve that surrounds the pin and the coil spring and is provided with a helically extending projection that is screwed into the helically extending space between the boundaries, whereby the helical spring with a second end is in contact with an inwardly protruding part of the sleeve arranged on the inside of the sleeve so that the coil spring with the second end is retained by the protrusion. By turning the sleeve, the distance between the two clamping surfaces can be adjusted to the height of the selected kitchen roll. There are many different sizes of kitchen rolls available on the market. Moreover, this roll holder can be operated with one arm by pressing the head piece with the forearm and simultaneously tearing off a piece of paper with the fingers of the same hand.

[0008] An embodiment of the roll holder according to the invention is characterized in that the core element is constituted by a rod with a straight part and a helically twisted part, the windings of which are spaced apart and constitute the boundaries. Preferably, the helical protrusion on the sleeve extends over a winding.

[0009] A further protrusion is preferably arranged on the clamping surface of the base at such a distance from the core element that during use the paper roll with its hollow core is arranged over the core element and the further protrusion and is kept in place by the core element and the further protrusion .

[0010] An embodiment of the roll holder according to the invention is characterized in that the core element is constituted by a tube piece over which the paper roll can be arranged, wherein the boundaries and helically extending space between them are constituted by internal screw thread on the inside of the tube piece, and wherein the helically extending projection on the outside of the sleeve is constituted by external screw thread.

[0011] The tube piece is preferably divided lengthwise in half and the two parts are later on connected to each other to enable manufacture of the internal thread.

[0012] Yet another embodiment of the roll holder according to the invention is characterized in that the coil spring is partially present in the sleeve and the sleeve is provided on the inside with an inwardly projecting projection with which the coil spring is in contact with the second end, such that the coil spring the second end is stopped by the protrusion. By not enclosing the coil spring between the head piece and the top of the sleeve, but between the head piece and the projection located further down, the full distance between the head piece and sleeve can be used as spring distance.

[0013] Preferably, the protrusion is formed by an inwardly extending flange provided with a hole through which the pin extends, wherein the pin has a rectangular cross-section and the hole also has a rectangular shape such that the pin cannot be rotated relative to the sleeve. This allows the distance between the clamping surfaces to be adjusted by turning the head piece, instead of the sleeve which is more difficult to reach.

[0014] The pin is preferably provided with an outwardly protruding flange at a second end such that the second end of the pin does not fit through the sleeve.

[0015] The head piece is preferably provided with a fold-out bracket to make it easy to rotate the head piece and to easily pick up and displace the roll holder.

[0016] Furthermore, the base is preferably weighted with a metal ring to give the base more stability.

[0017] The pipe section is preferably divided lengthwise in half and the two parts are connected to each other to enable manufacture of the internal thread.

[0018] The first clamping surface of the base is preferably concave. This means that the outer circumference of the paper roll rests on the clamping surface during use. The clamping force on the outer winding of the paper roll prevents the outer winding of the paper roll from coming loose from the rest of the paper roll on its own or from unintentionally unwinding the paper roll.

[0019] Brief description of the drawings

[0020] The invention will be explained in more detail below on the basis of exemplary embodiments of the roll holder according to the invention shown in the drawings. In the drawings:

[0021] Figure 1 shows a first embodiment of the roll holder in assembled condition;

[0022] Figure 2 shows the roll holder displayed in figure 1 in disassembled parts; Figure 3 shows the top module of the roll holder displayed in Figure 1 in assembled condition;

[0023] Figure 4 shows the top module displayed in figure 3 in perspective with the sleeve partially cut away;

[0024] Figure 5 shows the base of the roll holder displayed in figure 1 in perspective;

[0025] Figure 6 shows the base of the roll holder displayed in Figure 1 in side view;

[0026] Figure 7 shows a second embodiment of the roll holder in assembled condition;

[0027] Figure 8 shows the roll holder displayed in figure 7 in disassembled parts;

[0028] Figure 9 shows the top module of the roll holder displayed in Figure 7, disassembled into parts;

[0029] Figure 10 shows the top module displayed in Figure 9 in assembled condition with the sleeve partially cut away;

[0030] Figure 11 shows the top module displayed in figure 9 in assembled condition in side view;

[0031] Figure 12 shows the basic module of the roll holder displayed in Figure 7 in disassembled parts; and

[0032] Figure 13 shows the basic module of the roll holder displayed in figure 12 in the assembled state.

[0033] Detailed description of the drawings

[0034] Figure 1 shows a first embodiment of the roll holder according to the invention. The roll holder 1 consists of a basic module and an top module. The basic module has a base 3 and a vertical core element 5 formed by a rod with a straight part 5A and a helically twisted part 5B, the windings of which are spaced apart and form boundaries 6 of a space 7 extending helically between them, in which space the top module is screwed.

[0035] The top module has a head piece 9 that serves as a push button and a sleeve 13 provided with a helical projection 14 with which the sleeve is screwed into the basic module. On the clamping surface 3b of the base 3 there is a further protrusion 4 that has the shape of a wall that extends along part of a circle. The further protrusion 4 is present at such a distance from the part 5A of the core element 5 that during use a paper roll, which with its hollow core is arranged over the core element 5 and the further protrusion 4, is kept in place by the core element 5 and the further projection 4 cannot shift in the radial direction.

[0036] Figure 2 shows the roll holder 1 taken apart. The base 3 is hollow and in the cavity there is a ring 3c to which the core element 5 is attached at one end in order to firmly secure the core element 5 in the base. The cavity is closed by a cover plate 3d.

[0037] There is a pin 11 on the head piece 9, around which a shorter metal coil spring 15 is arranged. This coil spring 15 is enclosed between the head piece 9 and a constriction in the inside of the sleeve 13. The pin 11 protrudes through the sleeve 13 and is connected at the free end to a flange 21 that does not fit through the sleeve 13. As a result, the pin 11 is enclosed in the sleeve 13.

[0038] A bracket 23 is provided in the head piece 9, which ensures that the kitchen roll holder can easily be displaced in its entirety without touching the kitchen roll itself (for hygienic reasons) and that the head piece 9 can easily be screwed in the basic module.

[0039] In Figure 3 the top module of the roll holder is shown in assembled state. The sleeve 13 is arranged around the pin 11 and around the coil spring 15. The helically extending projection 14 is arranged on the outside of the sleeve and the constriction in the sleeve 13 is formed by an inwardly protruding part 17 of the sleeve 13, so that the coil spring 15 is retained with the second end 15b by the inwardly protruding part 17. The other end 15a of the coil spring is in contact with the underside of the head piece 9. The flange 21 is attached to the end of the pin 11 to prevent the coil spring 15 from pushing the pin 11 out of the sleeve 13. The bracket 23 is recessed into a recess in the head piece 9.

[0040] Figure 4 shows the top module in perspective with the sleeve partially cut away. The pin 11 has a square cross-section and the opening at the bottom of the sleeve 13 also has a square shape so that the pin 11 cannot be rotated relative to the sleeve 11. The coil spring 15 fits close between the inside of the sleeve 11 and the comer lines of the pin 11.

[0041] In Figures 5 and 6, the base 3 of the roll holder 1 is shown separately in perspective and side view respectively. These figures clearly show that the first clamping surface 3b of the base 3 is concave. This means that the outer periphery of the paper roll rests on the clamping surface 3b during use and prevents the paper roll from unintentionally unwinding on its own.

[0042] Figure 7 shows a second embodiment of the roll holder according to the invention. All parts that are identical to those of the first embodiment are indicated with the same reference numbers. This kitchen roll holder 21 also consists of a basic module and an top module. The basic module has a base 3 and a core element attached to it, which in this embodiment is formed by a vertical pipe section 25.

[0043] Figure 8 shows the roll holder in disassembled parts. For production technical reasons, the basic module will be manufactured from a left and right part 27 and 29, which will then be glued or clicked together during assembly. At the top, the vertical tube piece 25 is provided with a screw thread 28 on the inside into which the assembled top module (see below) can be screwed. In this embodiment the passage in the screw thread 28 forms the said helically extending space and the screw thread forms the said boundaries.

[0044] The top module consists of various parts: a head piece 9 that serves as a push button, a metal coil spring 15, a pin 11, a sleeve 13 with external screw thread 14 that will be screwed into the basic module and a flange 21.

[0045] The head piece 9 is centrally provided with a square pin 11 placed downwards. A slightly shorter metal coil spring 15 fits around this pin. The sleeve 13 is arranged around the metal coil spring 15, which therefore sits around the square pin 11. As the last part, the flange 21 is glued into a hole in the pin 11. As a result, the head piece 9 is spring-loaded with respect to the sleeve 13. The purpose of this spring-loaded arrangement is that, because the top module is screwed into the basic module, the inserted kitchen roll can be released by pressing the head piece 9 approximately 5 to 10 mm. to block.

[0046] The base 3 has the shape of a flat cylinder of approximately one centimeter high and a diameter of + / - 12 to 15 cm. The bottom of the base forms a base surface 3a and the top forms a clamping surface 3b for clamping the kitchen roll. The pipe piece 25 with an end 25a is attached in the middle of the base. This pipe piece has a diameter of approximately 35 mm and a height of approximately 200 mm. The kitchen roll will be arranged around this pipe section 25. Near the upper end 25b of the tube piece 25 on the inside, a thick screw thread 28 is provided which has the same pitch as the screw thread 14 located on the outside of the sleeve 13 of the top module. In this way the top module can be connected / screwed to / into the basic module.

[0047] The head piece 9 has a diameter of approximately 90 mm and a height of approximately 12 mm. The underside of the head piece 9 also forms a clamping surface 9b for clamping a kitchen roll. The head piece 9 is slightly rounded upwards towards the center to fit comfortably in the hand. A bracket 23 is provided in the head piece 9, which ensures that the kitchen roll holder can easily be displaced in its entirety without touching the kitchen roll itself (for hygienic reasons) and that the head piece 9 can easily be screwed in the basic module. The pin 11 is attached with an end I la to the head piece 9. The pin 11 is approximately 10 centimeters long and has the shape of a square rod, with sides of 10 mm. At the lower end 11b, the pin 11 is provided with a hole in which the flange 21 can be attached.

[0048] The pin 11 is arranged in a slightly shorter metal coil spring 15, which has an inner diameter that is slightly larger than the diameter of the pin 11. This causes the coil spring 15 to fit loosely but closely around the pin 11. The sleeve 13 is fitted around the pin 11, which is provided with a thick imposed screw thread 14 that has the same pitch as the screw thread 28 on the inside of the upright pipe section 25 of the basic module.

[0049] Figure 9 shows the top module of the roll holder disassembled and Figure 10 shows the top module in assembled condition with the sleeve partially cut away. The sleeve 13 is provided at the lower end with a square hole 19 through which the pin 11 can move loosely, without holding it back. This hole 19 is located in a narrowed part 17 of the sleeve 13. The coil spring 15 with an end 15b is located against the top of this part 17. The other end 15a of the coil spring 15 is in contact with the underside of the head piece 9. Finally, the flange 21, which is slid into the hole in the pin 11 and glued, has a diameter that is the same as that of the underside of the sleeve.13. This makes the bottom of the pin 11 flush with the bottom of the sleeve 13 after pressing the head piece 9.

[0050] Figure 11 shows the top module in an assembled state. Pressing the head piece 9, approximately 5 to 10 mm when taking a piece of paper, ensures that the clamping surface 9b on the underside of the head piece 9 blocks the kitchen roll to easily tear off a piece of paper. During pressing, the pin 11 slides within the metal coil spring 15 and through the bottom of the sleeve 13. After releasing the head piece 9, due to the tension on the metal coil spring 15, the pin and the sleeve return to the position where the bottom of the pin 11 and the sleeve 13 are at the same level.

[0051] To make it easy to displace the kitchen roll holder and to easily rotate the head piece 9, the head piece 9 is provided with a bracket 23. Figure 12 shows the basic module of the roll holder in disassembled form and Figure 11 shows the basic module in assembled condition. To give the kitchen roll holder stability, especially when the kitchen roll is almost empty, it is advisable to weigh down the base 3 with a large metal ring 31 in the base, or to provide the base with suction cups. Although the invention has been explained in the foregoing with reference to the drawings, it should be noted that the invention is by no means limited to the embodiments shown in the drawings. The invention also extends to all embodiments deviating from the embodiments shown in the drawings within the framework defined by the claims. For example, the coil spring can also be designed in such a way that it can be screwed into the pipe section (the windings of the coil spring also form the screw thread), so that the sleeve can be omitted.

Claims

CLAIMS:

1. Roll holder (1; 21) for easily removing pieces of paper from a paper roll, comprising: a base (3) provided with a base surface (3 a) with which the base (3) can be placed on a surface, as well as a first clamping surface (3b) that faces away from the base surface (3a), a core element (5; 25) over which the paper roll can be arranged and which is attached with one end (25a) to the base (3) on the side of the first clamping surface (3b) and extends perpendicular to the first clamping surface (3b), which core element (5; 25) is provided near the other end (25b) with a space (7; 28) extending helically between boundaries (6), a head piece (9) provided with a second clamping surface (9b) that faces the first clamping surface (3b), a pin (11) that is attached with a first end (1 la) to the head piece (9) on the side of the second clamping surface (9b) and extends perpendicular to the second clamping surface (9b), and a coil spring (15) that is arranged around the pin (11) and is in contact with the head piece (9) with a first end (15a) and is enclosed between the head piece (9) and the core element (5; 25) in such a way that the head piece (9) can be pressed against the spring force towards the core element (5; 25) and thereby reduces the distance between the two clamping surfaces (3b, 9b), characterized in that the roll holder (1; 21) further comprises a sleeve (13) that surrounds the pin (11) and the coil spring (15) and is provided with a helically extending projection (14) that is screwed into the helically extending space (7; 28) between the boundaries (6), whereby the helical spring (15) with a second end (15b) is in contact with an inwardly protruding part (17) of the sleeve (13) arranged on the inside of the sleeve (13) so that the coil spring (15) with the second end (15b) is retained by the protrusion (17).

2. Roll holder (1) according to claim 1, characterized in that the core element (5) is constituted by a rod with a straight part (5 A) and a helically twisted part (5B) whose turns are spaced apart and constitute the boundaries (6).

3. Roll holder (1) according to claim 1 or 2, characterized in that the helical projection (14) on the sleeve (13) extends over a winding.

4. Roll holder (1) according to claim 1, 2 or 3, characterized in that a further protrusion (4) is arranged on the clamping surface (3b) of the base (3) at such a distance from the core element (5) that during use the paper roll with its hollow core is arranged over the core element (5) and over the further protrusion (4) and is kept in place by the core element (5) and the further protrusion (4).

5. Roll holder (1) according to claim 1, characterized in that the core element is formed by a tube piece (25) over which the paper roll can be arranged, wherein the boundaries and space extending helically between them are formed by internal screw thread (28) on the inside of the tube piece (25), and wherein the helically extending projection on the outside of the sleeve (13) is formed by external screw thread (14).

6. Roll holder (1) according to claim 5, characterized in that the tube piece (5) is divided lengthwise in half and the two parts (27, 29) are connected to each other to enable manufacture of the internal screw thread (28).

7. Roll holder (1; 21) according to any one of the preceding claims, characterized in that the projection (17) is formed by an inwardly extending flange provided with a hole (19) through which the pin (11) extends, wherein the pin (11) has a rectangular cross-section and the hole (19) also has a rectangular shape such that the pin (11) cannot be rotated relative to the sleeve (13).

8. Roll holder (1; 21) according to any one of the preceding claims, characterized in that the pin (11) is provided with an outwardly protruding flange (21) at a second end (11b) such that the second end (11b) of the pin (11) does not fit through the sleeve (13).

9. Roll holder (1; 21) according to any one of the preceding claims, characterized in that the head piece (9) is provided with a fold-out bracket (23) to enable rotation of the head piece (9).

10. Roll holder (1) according to any one of the preceding claims, characterized in that the base (3) is weighted with a metal ring (25) to give the base more stability.

11. Roll holder (1) according to any one of the preceding claims, characterized in that the first clamping surface (3b) of the base (3) is concave.

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