DE202018000810U1 - Cutting device for plasterboard - Google Patents

Abstract

Cutting device for dimensionally accurate cutting of plasterboard with a lockable sliding stop, which is longitudinally displaceable relative to a cutting head on a guide rail, characterized in that the cutting device (1) consists of two spaced guide rails (2, 3), the ends of each via a Spacers (4) are interconnected, and arranged in the space longitudinally displaceable carriage (5).

Description

The invention relates to the field of construction, in particular the drywall using plasterboard, the plasterboard can be tailored to measure.

Gypsum plasterboards, such as those used for wall and ceiling cladding in buildings, consist of an inner gypsum core and an outer cardboard cladding. Plasterboard panels are supplied in standard sizes, with the most common size used for such panels being 125 cm x 200 cm.

The plasterboard must therefore be cut often on the job site to a fit. For this purpose, the plate lying on top of a stack is usually marked and, after applying a rail along it, the cardboard layer on the outside is cut with a cutter knife.

The plate is then pulled to the cut to the edge of the stack and broken with a short jerk. After turning the plate is cut by repeated cutting with the cutter along the fold line formed on the back, the cardboard layer.

The disadvantage here is that it can often come to slipping of the rail or the cut of the cutter knife can run, so that there is a poor uneven quality fracture. The constant bending over the plate stack when drawing and cutting as well as the arduous turning of the plates are further disadvantages.

Cutting methods are also known in which a ruler or tape measure is used as a guide for cutting, but these are cumbersome or inaccurate. ( US 4,255,856 )

Cutters of the input specified type are for example from the DE 3044 467 C2 known, which is movable with rollers on the upper edge of an erected plasterboard and has on both sides of the plates on the fly and adjustable in length arms as a tool carrier.

As cutting tools resiliently supported wallpaper knives are used, which are adjusted by means of the longitudinally adjustable arms to cutting size. The cut is made by moving the cutter on the top edge of the plasterboard.

For accurate cuts, a clean top edge of the plasterboard is required, which requires preprocessing when processing remnants. In addition, there should be as much as possible two workers for the cutting work, one for holding the plate and one for guiding the cutter.

Another cutting device is from the DE 20 2010 004 936 U1 known. This, referred to as Bruchkanten- or Trockenbauschneider, has the shape of a large T, the vertical forms the corresponding metering measure and the horizontal a kind of rail that can be applied to the edge of the plate. Notches for the attachment of cutting tools are mounted on the vertical arm at intervals, for example every 5 mm on the meter.

From the WO 1997/19791 A1 Another plasterboard cutting tool is known, comprising a frame tube to which a guide member is attached, the frame tube passing through a sliding member provided with a scale of 0 to 600 mm and a measuring scale of 1200 to 600 mm, the frame tube a blocking handle for blocking the sliding part on the frame tube and the other end of the sliding part is provided with a blade holder with a cutting edge.

From the US 2011 0162 220 A1 a cutting tool is known, with the same time the opposite sides of a wall plate can be cut.

From the US 5,404,647 A For example, another cutting tool is known for accurately and rapidly producing portions of a wall panel of a predetermined size. The cutting element is attached to the end of a rod, the other is a guide tongue which engages around the rod at a predetermined distance from the cutting element and can slide on a reference edge of the plate.

From the DE 20 2006 006 895 U1 a measuring and cutting device for dimensionally accurate cutting of plasterboard is known in which a lockable sliding stop with respect to the cutting head is longitudinally displaceable on a guide rail and depending on the respective position of the sliding stop the distance from the sliding stop to the cutting blade of the cutting head is read.

Another problem with the solutions of the prior art is that the cutting devices can not be used predominantly for standing gypsum plaster boards for complete gate in the vertical direction, since the lateral sliding stop does not allow cutting into the standing area of the plasterboard.

Based on the prior art, the present invention seeks to provide a cutting device for dimensionally accurate cutting of plasterboard, on the one hand a simple and quick handling and on the other hand, both in horizontal as well as standing plasterboard allows a complete cut to the end edges of the plates ,

According to the invention the object is achieved by a cutting device for dimensionally accurate cutting of plasterboard with the features mentioned in the characterizing part of the main claim. Further embodiments are described in the subclaims.

The cutting device according to the invention consists of two mutually spaced guide rails, whose ends are connected to each other via a spacer, and a longitudinally displaceable slide arranged in the space. The upper guide rail carries a scale and can have a rectangular or trapezoidal cross-section, depending on the design. Depending on the design of the upper guide rail, the carriage has a rectangular or trapezoidal recess for guiding.

At the lower guide rail at the zero point of the measuring scale, a cutting tool in the form of a knife blade either on the front or on the front and rear side mounted in such a way that the cut can be made directly from the edge of the plasterboard.

• 1 - Schneideinrichtung
• 2 - Schlitten
• 3 - Schneideinrichtung
• 4 - Anschnittvorgang
• 5 - Anschnittvorgang

Reference to exemplary embodiments, the invention will be described in detail. Show it:

• 1 - Cutting device
• 2 - sledges
• 3 - Cutting device
• 4 - Gating process
• 5 - Gating process

The 1 shows an embodiment of the cutting device according to the invention. This consists essentially of two mutually spaced guide rails 2 . 3 whose ends each have a spacer 4 connected to each other. In the space between the lower guide rail 3 and upper guide rail 2 is a longitudinally displaceable carriage 5 used. In the sledge 5 are a rectangular recess 10 for placement and guidance on the lower guide rail 3 and a trapezoidal recess 11 for receiving the upper guide rail 2 arranged ( 2 ).

Furthermore, the carriage points 5 on both sides wing-shaped arranged investment / equal areas 12 , wherein these are designed such that they have a cutout into the edge region of the plasterboard 8th allow.

On the viewer facing side of the upper guide rail 2 is a measuring scale 6 arranged, being at the zero point of the scale 6 at the bottom rail 3 a cutting tool 7 is arranged in the form of a knife blade. The cutting tool 7 is provided on both the front and on the opposite rear side of the lower guide rail.

The 3 shows a further embodiment of the cutting device according to the invention, wherein these from two mutually spaced guide rails 2 . 3 whose ends are each over the spacers 4 connected to each other. Both guide rails 2 . 3 have the same rectangular cross-section. The associated between the guide rails 2 . 3 sliding carriages 5 has rectangular recesses 10 on, the guide through the guide rails 2 . 3 serve. On the viewer facing side of the upper guide rail 2 is a measure scale 6 provided, wherein at the zero point on the lower rail in each case a cutting tool is arranged.

In the 4 is the cutting out of a plasterboard 8th shown in the horizontal position. By moving the slider 5 can change the cutting width on the measuring scale 6 can be read. Clamping the slider 5 is done by compressing lower 3 and upper guide rail 2 , causing a shift of the set slider 5 safely prevented.

Subsequently, the cutting device according to the invention 1 to the edge of the plasterboard 8th attached, with the investment / Gleitflächte 12 comes to rest on the edge.

By guiding the cutting device at right angles 1 with respect to the edge of the plasterboard 8th this will be along the gated line 9 by means of the cutting tool 7 cut. Thereafter, the plasterboard is at the gating line 9 broken and the remaining section removed.

The 5 shows the cutting of a vertical gypsum board 8th , After adjusting the cutting width accordingly, move the carriage 5 becomes the cutting device 1 at the lateral edge of the plasterboard 8th with the investment / sliding surface 12 attached and by moving from the lower edge of the plasterboard 8th towards the upper edge along the bleed line 9 the gate in the cardboard layer of the plasterboard produced. By subsequent breaking at the gating line 9 and severing the remaining paperboard layer, the remaining portion is removed.

An advantage arises when using the cutting device according to the invention 1 a saving of work time through a rational workflow without the use of additional tools, without additional set-up times and transport routes. The invention guarantees a quick start of the plasterboard in just one step with exact adoption of set dimensions for direct transfer to the plasterboard 8th , The entire process of measuring, adjusting and cutting is accomplished by a simple handleable cutter.

LIST OF REFERENCE NUMBERS

1

- Cutting device

2

- upper guide rail

3

- lower guide rail

4

- Spacers

5

- sledges

6

- Measuring scale

7

- Cutting tool

8th

- plasterboard

9

- gating line

10

- rectangular recess

11

- Trapezoidal recess

12

- Investment / sliding surface

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 4255856 A [0006]
• DE 3044467 C2 [0007]
• DE 202010004936 U1 [0010]
• WO 1997/19791 A1 [0011]
• US 20110162220 A1 [0012]
• US 5404647A [0013]
• DE 202006006895 U1 [0014]

Claims (8)

Cutting device for the dimensionally accurate cutting of plasterboard with a lockable sliding stop, which is arranged longitudinally displaceable with respect to a cutting head on a guide rail, characterized in that the cutting device (1) consists of two spaced guide rails (2, 3), the ends of each via a Spacers (4) are interconnected, and arranged in the space longitudinally displaceable carriage (5). Cutting device after Claim 1 , characterized in that the guide rail (2) as the upper guide rail has a trapezoidal cross-section and this with the trapezoidal recess (11) of the displaceable carriage (5) corresponds. Cutting device after Claim 1 , characterized in that the guide rail (2) as the upper guide rail has a rectangular cross-section and this corresponds to the rectangular recess of the sliding carriage (5). Cutting device after Claim 1 to 3 , characterized in that the guide rail (2) on the viewer side facing a measuring scale (6). Cutting device after Claim 1 to 4 , characterized in that at the zero point of the measuring scale (6), preferably on the lower guide rail (3), a cutting tool (7) is arranged. Cutting device after Claim 1 to 5 , characterized in that the cutting tool (7) is arranged on the lower guide rail (3) such that a gate is possible even when the gypsum plaster board (8) is stationary. Cutting device after Claim 1 to 6 , characterized in that the cutting tool (7) is arranged both on the front and on the rear side of the lower guide rail (3). Cutting device after Claim 1 to 7 , characterized in that the fixing and clamping of the adjusted carriage (5) by compression of the lower (3) and the upper guide rail (2).

Images