DE8903219U1 - Mortar sledge - Google Patents

Description

Malbergerafr.ftQ · ; ; . '. ' : 'Authorized representative at Patent Attorney D-7300 EallihgVn *' ' European Patent Office Dlpl.-Ing. Volkhard Kratzach T«Max (0711)3132 48 European Patent Attorney Telephone Stuttgart (0711) 317000 Deutsche Bank Esslingen 210906 cable «krapatent» esslingenneckar Postgiroamt Stuttgart 10004-701

Wilfried Baeder 7305 Altbach

9 March 1989 Attorney File 4665

for mortar cutting

The invention relates to a mortar sledge of the type mentioned in the preamble of claim 1.

Such mortar slides are suitable for being placed on a layer of bricks, e.g. loosely arranged shaped bricks, and moved along the length of the bricks, whereby mortar filled into the frame of the mortar slide is poured over the

lO issue and applied to the brick layer. In this way, the mortar required for bricklaying can be applied to and between the bricks lined up using such a mortar sledge. A mortar sledge of this type is known, which is on the inside

15 of both long side walls has welded guide rails with which the mortar slide sits on the top of the brick layer, while the two long side walls ^slide downwards. The output of the mortar slide:; consists of the square, lower opening of the frame, which is opened by the two

20longitudinal side walls, a front wall and a rear wall, which is adjustable in height. A mortar sledge of this type has a variety of ^uses . The mortar is applied to the brick layer via a very wide and large outlet. Many bricks have the property of retaining the mortar

to remove water, which, with this large-area dispensing opening, happens particularly quickly. This has the disadvantage that the mortar on the brick layer dries and hardens relatively quickly and is then no longer malleable. Then it is only possible to move the mortar sled further with great effort, especially since the mortar sled already offers great resistance to movement due to the flat resting of the brick layer with sliding friction. A further disadvantage is that, due to the large dispensing opening, the mortar sled cannot simply be lifted vertically from the brick layer and placed on another brick layer, e.g. in the corner area, because then the entire mortar content falls out downwards through the dispensing opening.

The invention is based on the object of creating a mortar sledge of the type mentioned in the preamble of claim 1, which eliminates the disadvantages described at the beginning, in particular is very easy to handle and handy, enables easy transfer from one layer of bricks to another even with mortar contained therein and prevents water from being removed from the mortar as far as possible.

The object is achieved in a mortar sledge of the type standardized in the preamble of claim 1 according to the invention by the features in its characterizing part.

Because the outlet is designed as a slot, which is also present in the rear frame area of the mortar slide, the disadvantages described at the beginning are eliminated. The following advantages result: The mortar stored inside the frame can be discharged in smaller doses via the slot at the rear end of the mortar slide. The mortar slide can also be quickly lifted and moved by hand without

There is a risk that a lot of mortar contained in the interior of the frame will fall out. The mortar sledge can also be handled quickly and easily and moved over the layer of bricks, and can also be moved quickly to the side when not in use. The bricklayer can place the next bricks relatively quickly on top of the mortar that has been applied , before the mortar dries out and the risk of hardening is eliminated.

Because of this, the mortar can be used from the outset 10

be set up in such a way that it contains less water and is relatively dry. The outlet opening through the slot allows the layer thickness to be adjusted particularly well and without major losses and dead times.

of the mortar to be applied. e.g. by ii'ihen-15

ve rs 111:-ig a- rear section over . ind . In all, ^the mortar sledge is light, simple and _inexpensive , so that there are no significant ^costs to its purchase, even in larger quantities and different dimensions ^.

Further advantageous embodiments of the mortar slide according to the invention result from claims 2 Due to the sloping course of the floor wall, 1er receives

Located inside the frame ¹ " is a coupling to the rear? 25

and P3ch down to the slot located at the bottom. The vibrator, which can be held by the operator for a short time if necessary, allows the sliding of the mortar along the sloping floor wall and its movement backwards into

Direction to the slot. The static friction will be 30

of the mortar resting on the floor wall is at least reduced or completely eliminated. This accelerates the mortar discharge. In addition, the mortar discharged at the slot is homogenized.

Mortar. Since the mortar carriage has rollers on the wall-35

stsinlage and can be moved over it by rolling, only a relatively low friction occurs, namely only a rolling friction, which is why the mortar carriage is

Operator by hand without much effort and

I can be moved easily, sensitively and quickly by rolling. Holes, openings, hollow chambers or similar open areas in the stones can also be rolled over effortlessly without the mortar carriage getting stuck. Since the vibrator and/or the control valve assigned to it are each held by an assigned Sr &Iacgr;eegr; eil- |) exchange holder or Schnd 1 exchange holder,

-.Q a quick exchange of these elements is possible. isj

This opens the possibility of removing these elements from one mortar if necessary and then attaching them to another.

other mortar sledges required depending on the type of work can be quickly and easily attached. If you also have different widths,

. &rgr;- mortar slides adapted to different sized stones are required, then you do not need your own dedicated vibrator and a corresponding control valve for the mortar slide. Instead, you can get by with a smaller number of these, which are then

_ _n can be quickly switched from one carriage to the ^other if necessary.

Further details and advantages of the invention will become apparent from the following description.

The full wording of the claims is not reproduced above solely to avoid unnecessary repetition, but instead reference is made to them merely by citing the claim numbers, whereby, however, all of these

_of claim features are to be considered as expressly disclosed at this point and essential to the invention. All features mentioned in the preceding and following description as well as the features that can be inferred solely from the drawing are further components of the invention, also

&eegr;,- unless they are specifically highlighted and in particular not mentioned in the claims.

The invention is explained below using an embodiment shown in the drawings . They show:

& Fig. 1 is a schematic, partially

sectioned side view of a M ö rte 1 sch 1 i 1. 1 e &eegr; s ,

&Ggr; ig· 2 a sch ernn t ic he _f pt rspekt &iacgr;&ngr; i r. c .he / -lsicht. the front- urn! ' Interse i ie

of the market, &igr; 1 el. l.tens in Fig. 1 ,

f Lg. &lgr; a "thematic, partially sectioned ⁿ >< ite &eegr; view <\<ir rear side: te of the mortar sledge r. ,

^Fig . 4 is a schematic, partially sectioned side view of the front of the mortar carriage. 20

The mortar roller 10 shown in the drawings can be moved over a first layer 11, which is only schematically indicated in Fig. 1 and which consists, for example, of loosely arranged shaped bricks or the like , onto which mortar is to be applied - if necessary also by filling joints, e.g. between the adjacent shaped bricks.

The mortar slide 10 is made of metal, e.g. of welded sheet steel. It has a frame '2 which is approximately rectangular in appearance with an upper input opening 13 through which mortar 14 can be introduced into the frame interior 15. The frame 12 also has a lower outlet 16 through which mortar 14 contained in the frame interior 15 can be discharged downwards and onto the brick layer 11 located underneath. This outlet 16 is designed as a slot 17 which is located in the rear area of the

Frame 12 and extends across the cutting edge from one longitudinal side wall 16 to the opposite, approximately parallel longitudinal side wall 19. A dome wall 2(j is arranged in the interior of the frame 15, which runs along the B between the two long side walls 10, 19 and on which the mortar 14 located in the interior of the frame 15 can rest. The dome wall 70 is arranged with its rear end 21 and between the front edge, in the lower area of the ^slot 17, but with a spacer in front of the frame rear wall on the left. There is a vertical ^line , and in such a way that the ends 2(j) of the dome wall 20 and this H-. :'"ignr'ür, kwarid ?2 riüi' transversely: A cover wall 1/ is held in place at the rear of the frame 22 as a delimiting element for this slot 1 /. This cover wall ¹ / is located on the outside of the lower part of the frame 22 ^and projects downwards so that it forms a delimitation of the slot 17 with the lower edge part 2-, the other delimitation being formed by the lower end 21 of the box 20. This lower edge part 24 of the end wall 23 is bent backwards and downwards so that this edge part 24 strips and smoothes the removed mortar layer. The lower edge part 24 has a toothed spatula-like row of teeth 26 with alternating projections 27 and recesses 28 running along its rear edge, ie from one long side wall 19 to the other long side wall 19, over which, as if by means of a toothed spatula, the removed middle layer 25 is broken up on the upper side into strands divided by longitudinal grooves.

The frame 12 has a front wall 29 in the front end area, which extends transversely from one longitudinal side wall 18 to the other longitudinal side wall 19 and extends approximately vertically downwards from the input opening 13, whereby it is at a significant distance above the underside of the frame

&bull; Ill &igr;

ends. The bottom wall 20 begins in the front end area of the frame 12, where it adjoins the lower edge 30 of the front wall 29. Starting from this edge 30 of the front wall 29, the bottom wall 20 runs at an incline obliquely downwards and inwards, with the bottom wall 20 ending with its rear end 21 in the manner described at only a relatively small distance from the plane containing the frame rear wall 22. This results in the angle of inclination of the bottom wall 20.
10

The rear end wall 23 is held detachably and height-adjustably on the frame rear wall 22 by means of screws 31 and nuts 32, whereby the bolt of each screw 31 passes through a vertically extending slot 33 in the end wall 32, which enables the height to be adjusted. By adjusting the height of the end wall 23 accordingly, the width of the rear slot 17, measured in vertical plane, through which the mortar 14 is dispensed, can be changed and thus also the height of the mortar layer 25 applied there.

A vibrator 34, in particular a lens vibrator, is attached to the frame 12 and preferably to the underside of the floor wall 20. When switched on, the vibrator 34 facilitates the sliding of the mortar 14 lying on the floor wall 20 and located inside the frame 15, thereby reducing or even completely eliminating the static friction of the mortar 14 lying on the floor wall 20. This makes it easier to dispense the mortar 14. The vibrator 34 runs approximately horizontally or is raised slightly towards the front. To hold it, the floor wall 20 has a quick-change holder on the underside, only visually indicated with 35, e.g. two fork tables JO, in which the vibrator 34 can be interchangeably held. The vibrator 34 is accommodated between these two forked lugs 36 and

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by means of a locking pin 37 inserted transversely in the position shown. If a different vibrator or no vibrator at all is to be provided instead, a quick adjustment can be made in this way. The inserted vibrator 34 projects freely forwards from the quick-change holder 35 in the position shown in Fig. 1. It is designed, for example, as a pneumatic vibrator. Instead, the vibrator 34 can also be designed as a mechanical, electromechanical or similarly actuated vibrator. The vibrator 34 is assigned a control valve 38, shown only schematically, which is also arranged below the base plate 20, e.g. on this, and can be actuated by the operator by means of an actuator 39, e.g. manually operable. The control valve 3&THgr; is connected to a source not shown, e.g. a compressed air source, via a feed line 40, which is only shown schematically, e.g. a compressed air hose, and is connected to the vibrator 34 via a supply line 41, which is also only shown schematically, which can thus be activated when the control valve 36 is actuated. The control valve 38 is also held by means of a quick-change holder 42, which is only shown schematically, on the underside of the base wall 20, e.g. in the front area, so that the control valve 38 can also be quickly attached or removed as required.

Due to the quick-change holder 35 for the vibrator and the quick-change holder 42 for the control valve, it is possible to remove the vibrator 34 or the control valve 38 if necessary and to attach them to another, e.g. smaller or larger, mortar gun 10 in a corresponding manner. This is quick and easy to do and has the advantage that these components, namely the vibrator 34 and the control valve 36, can be quickly exchanged and used for other mortar guns, e.g. those that are designed for differently dimensioned mortar guns.

* Brick layers 11 are aligned. The user therefore only has to purchase these elements, ie the vibrator 34 and the control valve 35, once, while mortar slides 10 of different sizes are required depending on the brick width.

The two longitudinal side walls 13, 13 are approximately trapezoidal in shape, being bevelled in the front and bottom corners, in such a way that their bevelled front edge 43 or AA from the lower edge 30 of the front wall 29

starting at an angle downwards and backwards and this front edge ends approximately at the vertical height of the plug pin 37. «Yb da runs the horizontal underside
Y-nnths 45 and 46 of the longitudinal side walls 16 and 19 are horizontal and approximately parallel to the upper edge, which is set approximately in a funnel shape on both sides in the area of the input opening 13. The dimensioning of the two longitudinal side walls 16, 19 and the angle of the inclined front edge 43 and 44 is such that
chosen because ¹ } in the front area of the mortar carriage 10 the two longitudinal side walls 18, 19 protrude downwards and forwards with a surface part beyond the bottom wall 20, whereby a receiving space with an approximately U-shaped cross section is formed between the bottom wall 20 and the two protruding surface parts of the longitudinal side walls 18, 19, in which the vibrator 34, the control valve 3B and other elements to be described are housed in a protected manner.

The mortar slide 10 has rollers 47, 48 arranged on both sides at the bottom, by means of which the mortar slide 10 can be moved over the brick layer 11. These rollers 47, 48 are mounted approximately in the middle area of the mortar slide 10, i.e. approximately in the middle area of the brick length measured from front to back. The rollers 47, 48 are located in the open area at the front and bottom, which is laterally supported by the overhanging

Longitudinal side walls 18, 19 at least partially overlap. The rollers 47, 48 are rotatably mounted on an axle 49 which runs between the two longitudinal side walls 18, 19 and is attached thereto or is instead firmly attached to the band wall 20. Even if only rollers 47, 48 are mentioned, it is nevertheless understood that, for example, in both end areas of the axle 49, two pairs of rollers or even more than two rollers 47 or 48 can be arranged at each end.

In the area of the front wall 29, an approximately U-shaped bracket 50 engages, which extends approximately vertically downwards and is designed on the one hand as a holding bracket and on the other hand as a front vertical support of the mortar carriage 10.

The holding bracket 50 has an approximately horizontal lower leg 51 and, at a distance above this, an approximately parallel leg 52, which the operator can easily grasp when handling the mortar carriage 10. The lower leg 51 can also function as an axle on which at least one further roller 53 is rotatably mounted. In the embodiment shown, two rollers 53 placed next to each other at a distance are only schematically provided. Together with the rollers 47, 48, these form a three-point support. The contact surface created by these rollers 47, 48, and 53 is so large that the mortar carriage 10 can also be moved smoothly and without interference over the PbFr side of shaped bricks that contain hollow chambers or similar holes.

The mortar sledge 10 is handled as follows. The mortar sledge 10 is placed on the brick layer 11, which consists, for example, of loosely arranged shaped bricks to form a brickwork layer, with a gap left between bricks. The required mortar can then be applied to and between the bricks arranged in this way with the help of the mortar sledge 10. To do this, first

the mortar carriage 1U placed on the brick layer 11 is filled with mortar in the inner frame 15, which then rests on the wall 20. Since the mortar carriage 10 rests flat on the top of the brick layer 11 with just one roller 47, 48 and 49, it can also be moved smoothly over holes, joints or the like therein. Due to the rollers 47, 49 and 49, a smooth rolling movement can be achieved anyway, whereby only the rolling friction has to be overcome. The mortar carriage 1U, which, ^c ;e eeegr; The inside is filled with mortar 14, and the enungnpf· rsoii,; . B . by hand in the longitudinal direction of the wall beams 11 along them is sufficient. The operator can do this, for example, by grasping ^the holding bracket ^? ·&Pgr; in the leg 62 and there pulling movement in P ^; ;il direction: g b4 to

If) in front. To facilitate the application of the mortar 14, the operating lock of H^nri can be easily removed from this position. ü g "> · ■< g 1 ic control valve 38 is switched on by operating the actuator 39, whereby the vibrator 34 is switched ^on , which enables a smooth movement of the mortar 1^ along the bottom wall 20 in the direction of the rear slot 17 due to the vibrations generated. When the vibrator 34 is switched on, the static friction between the mortar 14 on the bottom wall 23 ^and the latter is reduced or even completely eliminated, in particular by horizontal vibrations, and thus the transport of the mortar 14 along the inclined bottom wall 20 backwards in the direction of the rear slot 17 ^is promoted, while the mortar 14 is pumped through the set slot width. Thickness as mortar layer 25 emerges during the forward movement in the direction of arrow 54. In this way, a mortar layer 25 of the desired height is applied at the rear end by the longitudinal movement of the mortar carriage 10. This can be done quickly, cleanly and without complications with the help of the mortar carriage 10. Thus, immediately after this mortar layer 25 has been applied, the next layer of bricks can be built on top of it. This means that the mortar 14

relatively low in water and thus dry, (' &igr; before it hardens, the next layer of bricks can be placed by the operator on the applied mortar layer 25. Since the mortar carriage 10 pulled in the direction of arrow 54 over the brick layer 11 only sits on the brick layer 11 via the rollers 47, 48 and 53" and rolls on it, smooth operation is possible.

The carriage movement can be achieved even when the frame interior 15 is filled with mortar 14 up to the top. The mortar carriage 10 is thus smooth-running and easy to handle. It can also be easily lifted up and, for example, over "q

Corner on an adjacent wall ¹ · te inlay 11 again

In all, the mortar sledge 10 is extremely simple, relatively light and very inexpensive. It

f is also easy to clean. Due to the snow 1-

Thanks to the quick-release fastener 35 for the vibrator 34 and the quick-release fastener 42 for the control valve, these elements can be removed very quickly if necessary, either because they are not required for this mortar carriage ¹⁰ or because you want to attach these elements quickly and easily to another mortar carriage.

Claims (1)

Expectations 20 Belt which can be moved over an outermost layer (11) ^and which has a frame (12) with an upper input (13) via which mortar (14) can be introduced into the frame interior (15) and a lower output (1b) via ^which a belt (14) contained in the frame interior (15) can be dispensed, characterized in that the output (16) is formed by a slot (17) located in the rear frame area and extending only over the width of the slot, that in the frame interior (15) 'JCi VUIi vici" ¹ oj ^! 25 that the bottom wall (20) extending longitudinally along the bottom wall (19) is adapted to rest on the mortar (14) located inside the frame (15), and that the bottom wall ⁽ 20) ends with its rear end (21) in the lower region of the slot (17), but at a distance from the frame rear wall (22), and that the slot (17) is formed between this end (21) of the bottom wall (20) and the frame rear wall (22,23). Mortar carriage according to claim 1, characterized in that in the lower region of the frame rear wall (22) a closing wall (23) is held so as to be height-adjustable, which with its lower edge part (24) forms one boundary of the slot (17), the other boundary of which is formed by the rear end (21] of the bottom wall C20). 3. Mortar carriage according to claim 2, characterized in that the lower edge part (24) of the closure edge (23) is bent backwards and downwards. 4. Mortar slide according to claim 2 or 3, characterized in that the lower edge part (24) of the end wall (23) along the edge running, roughly tooth-spatula-like row of teeth (26)
having. 5. Mortar carriage according to one of claims 1 - 4, characterized in that the bottom wall (20) slopes from the front frame area to the
rear frame area and downwards. 6. Mortar slide according to one of claims 1 - 5, characterized in that the bottom wall [Zu) extends obliquely backwards and downwards from the front frame region. 7. Mortar carriage according to one of claims 1 - 6, characterized by gn that a vibrator (34), in particular a liner vibrator, acts on the part (12), in particular on the bottom wall (20). B. Mortar carriage according to claim 7, characterized in that the vibrator (34) is held on the underside of the bottom wall (23). 9. Mortar carriage according to claim 7 or 8, characterized in that the vibrator (34) runs somewhat horizontally or is slightly raised towards the front. 10. Mortar slide according to one of claims 7-9, characterized in that the top wall (20) has a quick-change holder on the underside c (35) in which the vibrator (34) can be replaced can be held. 11. Mortar carriage according to one of claims 7 - 10, characterized in that the ^q Vibrator (34) is designed as a pneumatic or mechanical or electromechanical or similar vibrator. 12. Mortar carriage according to one of claims 7 - 11, , characterized in that in the front area between the underside of the bottom wall (20) and the longitudinal side walls (16,19) overlapping the bottom wall (20) by means of a quick-change holder (42) a control valve (39) is arranged, which is assigned to the vibrator (34) and by means of a e.g. manually operable actuator (39). 13. Mortar slide according to one of claims ¹ - 12, _OCL is characterized in that the Frame (12) has in the front end region a front wall (29) running from one longitudinal side wall (16) to the other longitudinal side wall (19), which extends from the input opening (13) and downwards and ends at a substantial distance above the underside of the frame. 14. Mortar carriage according to claim 1'3, characterized in that the vent wall (29) with its lower edge (30) to the front end of the slanted 35 Floor heating (20) is connected. -&Agr;&Igr; 15. Mortar carriage according to one of claims 1 - 14, characterized in that the both longitudinal side walls (18, 19) extend beyond the underside of the base wall (20) and there laterally delimit an area which is open to the front and to the bottom. 16. Mortar carriage according to one of claims 1 - 15, , _o characterized by rollers (47,48) arranged on both sides, by means of which the mortar carriage MO) can be moved rolling over the brick layer (11). 17. Mortar carriage according to claim 16, characterized in that 15 indicates that the rollers (47,48) are arranged approximately in the middle of the slide area. 18. Mortar carriage according to one of claims 15 - 17, characterized in that the 20 Rollers (47,48) are arranged in the area which is open to the front and bottom and is at least partially covered by the longitudinal side walls (18,19). 19. Mortar carriage according to one of claims 16 - 18, 25 characterized by an axle (49) which is fixedly mounted between the two longitudinal side walls (18, 19) or on the bottom wall (20) and which is supported on rotatable rollers (47, 48). 20. Mortar carriage according to one of claims 1 - 19, d a · characterized in that the longitudinal side walls (18,1J) extend with their front edge (43,44) approximately from the lower edge of the front wall (29) diagonally downwards and backwards. 35 -S- 21. Mortar carriage according to one of claims 1 - 20, characterized in that in the area of the front wall (29 3) an approximately U-shaped bracket (50) and extends approximately vertically downwards, which is designed as a retaining bracket. 22. Mortar carriage according to claim 21, characterized in that the approximately U-shaped bracket (50) is designed as a front vertical support of the frame (12). 23. Mortar sledge according to claim 21 or 22, characterized in that the approximately U-shaped lg bracket (50) carries on its lower leg (51) at least one roller (53) which is rotatably mounted thereon.