EP1763481A1

EP1763481A1 - Roll dispenser

Info

Publication number: EP1763481A1
Application number: EP05742771A
Authority: EP
Inventors: Steffen Wuensch
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2004-06-24
Filing date: 2005-05-24
Publication date: 2007-03-21
Also published as: US20070125216A1; US7607378B2; CN1976854A; DE102004030451A1; WO2006010655A1

Abstract

The invention relates to a roll dispenser (100), whereby on removal of the roll product (102), a simple and rapid stamping of the necessary holes in the product and a simultaneous cutting to length is achieved, said roll dispenser (100) comprising a perforation and cutting device (106).

Description

Role merchandising

State of the art

The invention is based on a roll goods dispenser having the generic features of claim 1.

Role merchandisers are known. For example, there are adhesive tape dispensers for the office sector. The product which is dispensed by the dispenser is wound up in the form of a roll. In particular, standard abrasives such as sandpaper are also offered in this roll form. By tearing off or cut off these rolls are brought by the user to the desired length.

For certain rolls, the torn or cut sections must be provided with holes prior to use. Abrasives, for example, which are to be mounted on sanders with a dust extraction, must be perforated before use in order to provide the necessary for Staubabsau¬ supply holes. According to the prior art, the user must first remove the desired length of rolled goods from the dispenser and then insert the necessary holes into the withdrawn roll goods. Consequently, before he can use the roll goods, the user must first carry out numerous elaborate manipulations, so that a more comfortable, simpler and time-saving provision of the roll goods would be desirable here. Advantages of the invention

A roller product dispenser according to the invention with the features of claim 1 has the advantage that the user is given the opportunity, simply and quickly, of making the necessary holes when the roller product dispenser has a punching device to punch out the roll goods.

In this case, a punching device is to be understood as meaning any device with which a hole or a plurality of holes can be introduced into a section of the roll goods.

By means of the punching device according to the invention, the user can carry out the punching of the required roll goods section directly in the context of the removal process directly on the dispenser. The user does not have to make any additional handles for punching the removed section _' after removal of the raw material, but can use the section immediately.

It is advantageous if the punching device according to the invention comprises at least one punched pin and a pressure plate.

In this case, the punching bolt is preferably designed annular. In particular, the punching bolt can be executed as a round metal blade insert or as a sharp-edged plastic cutting edge, the latter alternative having the advantage that it is less expensive. According to the invention, a plurality of punching bolts may be provided, depending on the number of holes to be punched. The pressure plate is preferably flat and rectangular and preferably has one or more holes for receiving the one or more punching bolts. By depressing the pressure plate on the punching the punching process can be performed.

Preferably, the hole punching device additionally comprises a receiving plate. The receiving plate accommodates the portion of the roll goods to be perforated and has the task of delimiting this portion in the longitudinal direction and guiding it in the transverse direction. To guide the section, the receiving plate can have segments attached to its sides.

Furthermore, the receiving plate can centrally have a longitudinal stop. This longitudinal stop preferably consists of one or more elevations. Particularly preferably, the one or more elevations are nubs or cams. The central longitudinal stop makes it possible to use the punching device both to punch roll product sections with a full receiving plate length and also roller product sections with half the receiving plate length.

If the punching device additionally comprises at least one compression spring, the pressure and the receiving plate can be automatically returned to the starting position after punching.

The roll goods dispenser preferably has a separating knife. The function of the cutting knife is to cut off the required roll goods section to the correct length. In particular, the separating knife can be arranged such that at the same time a separation of this section takes place from the roll when punching the Rollenwarenabschnitts. As a result, the user of the roll ware according to the invention is Not only does it make it possible to punch the necessary holes quickly and easily, but at the same time to accurately separate the rolls to the required length.

In a particular embodiment of the invention, the roll goods dispenser has a roll holder. The roll holder holds the roll of goods in position. The roll holder prevents the roll from falling out of the dispenser.

If the roll goods dispenser is also integrated in a suitcase, in particular a tool case, for example, for a grinding machine, a user does not have to carry the roll goods dispenser separately with them, but has all the items that he needs comfortably at hand with one suitcase. Preferably, the pressure plate is arranged on the trunk lid. This punching can be performed by simply closing the lid. Instead of the arrangement in a suitcase, the roll goods dispenser can also be embodied as an integrated roll goods stand for setting up, for fastening on the wall or otherwise.

Finally, the roll goods dispenser according to the invention is preferably an abrasive paper dispenser, in particular a sanding paper dispenser for standard abrasives, which are offered as roll goods.

drawings

Embodiments of the invention are explained in more detail in the nachsteh¬ the description with reference to the accompanying drawings.

The figures show: FIG. 1 shows an overall perspective view of an embodiment of the roll goods dispenser according to the invention,

FIG. 2 shows an exploded view of the roller goods sampler according to FIG. 1,

FIG. 3 shows a top view of the roll goods dispenser according to FIG. 1,

FIG. 4 shows a cross-section of the roll goods dispenser according to the arrows A-A from FIG. 3,

5 shows a cross section of the roll goods dispenser according to the arrows B-B of FIG. 3,

FIG. 6 shows a tool case in which a roll goods dispenser according to the invention is integrated.

1 shows an overall view of a sandpaper spreader 100 in the ready-to-use state. The sanding paper dispenser 100 has a housing 101. An abrasive paper roll 102, which is held by a roll holder 103, is seated in the housing 101. A pressure plate 104 is also mounted in the housing 101.

The sanding paper dispenser 100 can be designed for individual sandpaper sheet sizes 1/2 (280 × 115 mm ² ), 1/3 (230 × 93 mm ² ) and 1/4 (140 × 115 mm ² ) in stand-alone configurations. By setting a longitudinal stop, however, the 1/4 sheet version can be produced from the 1/2 sheet version, so that then the 1/2 sheet and 1/4 sheet finishes can also be standardized. FIG. 2 shows the individual components of the abrasive paper dispenser 100 in an exploded view. In addition to the housing 101, the roll holder 103 and the pressure plate 104, the abrasive paper dispenser 100 comprises an abrasive paper receiving plate 105, a separating knife 106 and four compression springs 107.

The housing 101 serves as the actual dispenser or storage for the sandpaper. The housing 101 is adapted to the dimensions of the corresponding sandpaper width. The housing 101 contains guides 108 for the sandpaper receiving plate 105 and the pressure plate 104 as well as receptacles 109 for the compression springs 107. In addition, annular punching pins 110 for producing suction holes in the sandpaper are provided in the housing 101.

The abrasive paper receiving plate 105 has four first holes 111, which open into four outer dome 115. The abrasive paper receiving plate 105 is guided in the four first bores 111 '' ', with the four dome 115 below the abrasive paper receiving plate 105 serving as guide columns. The four first bores 111 also ensure the guidance of the pressure plate 104.

The abrasive paper receiving plate 105 has segments 112 mounted on both sides thereof which guide the abrasive paper transversely. On the side surfaces of the segments 112 small triangular elevations 113 are present, which compensate for the tolerances of the abrasive papers and hold the sandpaper by gently jamming on the end faces of the sandpaper receiving plate 105. Second bores 114 in the sandpaper receiving plate 105 within the width of an abrasive paper serve as passage openings for the punching pins or also punching dies 110.

The pressure plate 104 forms the upper end of the sanding paper dispenser 100. It rests on the sandpaper and we are guided with four bolts 116 in the underlying sandpaper receiving plate 105. The pressure plate 104 has six holes 118 and a handle 119.

The severing blade 106 made of hardened steel is located in a recess 117 at a suitable location in the housing 101. The cutting edge of the severing blade 106 is covered by the sandpaper receiving plate 105, so that no

Risk of injury when tracking the sanding paper as well as accidentally getting in there. Only by depressing the pressure plate 104, the separating blade 106 is released.

The four compression springs 107 are interposed between the housing 101 and the abrasive paper receiving plate 105 and have the task of returning the abrasive paper receiving plate 105 and the pressure plate 104 back to the original position after punching and separating the abrasive paper.

The roll holder 103 presses with a slight bias on the sandpaper roll 102, holds them in position and prevents falling out.

Fig. 3 shows the abrasive paper dispenser 100 from above. The pressure plate 104 with its handle 119 is to be seen. Within the bores 118 of the pressure plate 104, the punching bolts 110 can be seen centrally. The punching pins 110 pass through penetrate the also recognizable second holes 114 of the sandpaper receiving plate 105th

Fig. 4 shows the section AA of Fig. 3. The section shows the sandpaper dispenser 100 in its original position with inserted sandpaper roll 102. A portion 120 of the sandpaper roll 102 is unwound therefrom and is located between the pressure plate 104 and the sandpaper receiving plate 105. Under the Section 120 sit the severing knife 106 and the punching pin 110th

The punching bolts 110 are located in the second bores 114 of the sandpaper receiving plate 105. The bores 118 of the printing plate 104 lie above the punched bolts 110, these being covered by the sanding paper section 120 from the point of view of the punching pins 110.

Fig. 5 shows the section B-B of Fig. 3. From this section, the guides of the pressure plate 104 and the sandpaper receiving plate 105 can be seen. The guides 108 of the housing 101 guide both the pressure plate 104 and the sandpaper receiving plate 105. For this purpose, the bolts 116 of the pressure plate 104 dive into the guides 108, whereas the dome 115 of the sandpaper receiving plate 105 surround the guides 108.

Finally, FIG. 6 shows an open grinder box 121. In the box 121, a sandpaper dispenser 200 is disposed. The abrasive paper dispenser 200 corresponds in structure to the abrasive paper dispenser 100 with the exception that the pressure plate 104 is attached to the lid of the case 121, not shown. The remaining elements of the sanding paper dispenser 200 are located in the bottom of the case 122. - Q -

Finally, the mode of operation of the abrasive paper dispensers 100 and 200 will be explained.

After the flap holder 103 has been folded up, an abrasive paper roll 102 is inserted into the housing 101 provided therefor, so that the grain of the abrasive paper points to the lower side. The sandpaper is then rolled out and thereby advanced over the sandpaper receiving plate 105 to the opposite housing wall. The rolled out sandpaper is pressed into the lateral elevations 113 with slight pressure. Subsequently, the punching operation for the suction holes and the separation to the correct length can be carried out simultaneously either by depressing the separate pressure plate 104 (in the case of the abrasive paper dispenser 100) or by closing the case lid with the pressure plate 104 located thereon (in the case of the grinding machine) paper dispenser 200). In the combined punching and separating process, the pressure plate 104 lowers against the force of the compression springs 107 and takes along the sandpaper section 120 and the sandpaper receiving plate 105. Accordingly, the abrasive paper section 120 is pressed down so that both the stationary separating knife 106 and the stationary punching pins 110 penetrate into the abrasive paper section 120. As a result, the abrasive paper section 120 is perforated and simultaneously separated from the sandpaper roll 102. After opening the case 121 or after lifting the pressure plate 104 then the ready-sandpaper section can be removed.

With the sandpaper dispensers 100 and 200 just described, it is possible to separate a sanding paper section of the correct length from a sandpaper roll in a particularly simple and rapid manner and punch it at the same time. By doing that punching and cutting at the same time in a single simple operation, the sandpaper dispensers 100 and 200 are particularly convenient and effective to use. The separated and punched sandpaper is ready to use immediately and can be mounted on the sanding machine immediately after removal from the dispenser. In addition, the sandpaper is automatically cut off exactly to the required length and punched in the right places.

Claims

claims

1. roll goods dispenser, characterized in that the roll goods dispenser (100, 200) has a punching device.

2. roll goods dispenser according to claim 1, characterized gekenn¬ characterized in that the punching device comprises at least one punched pin (110) and a pressure plate (104).

3. roll goods dispenser according to claim 2, characterized gekenn¬ characterized in that the punching device additionally comprises a Auf¬ receiving plate (105).

4. roll goods dispenser according to claim 3, characterized in that the receiving plate (105) has a longitudinal stop centrally.

5. roll goods dispenser according to one of claims 2 to 4, characterized in that the hole punching device additionally comprises at least one compression spring (107).

6. 'roll goods dispenser according to one of the preceding Ansprü¬ surface, characterized in that the roll goods dispenser (100, 200) has a separating knife (106).

7. roll goods dispenser according to one of the preceding Ansprü¬ surface, characterized in that the roll goods dispenser (100, 200) has a roll holder (103).

8. roll goods dispenser according to one of the preceding Ansprü¬ surface, characterized in that the roll goods dispenser (200) in a case (121) is integrated.

9. roll goods dispenser according to one of the preceding Ansprü¬ surface, characterized in that the RollenwarenSpender (100, 200) is a sandpaper dispenser.