SI9111514A - Apparatus for ramming insulation plates into walls - Google Patents

Abstract

The device for driving insulating panels (4) into masonry (30) consists of a pneumatically, hydraulically or electrically driven impact hammer (1), the impact piston (2) of which acts, via a clamping jaw (3), on one end face of the insulating panels (4). The clamping jaw (3) is constructed with a shaft (7) which is guided in a guide channel (9) of the impact hammer (1), and with a bill (8) which receives the insulating panels (4). To shorten the overall length of the device and reduce the risk of the tool fracturing, the guide channel (9) in the impact hammer (1) is constructed cylindrical with only a slightly smaller diameter than the impact piston (2), and the shaft (7) has the same diameter, without a step, from the impact piston (2) up to the point of transition to the bill (8) of the clamping jaw (3). In addition, the guide channel (9) is of shortened design, omitting a device for securing the tool against falling out. The impact hammer (1) can be arranged, so as to be horizontally fixed but vertically adjustable, on a chassis (18) provided with wheels (22) and of horizontally extending axis. A pneumatic or hydraulic actuating cylinder (25) is provided for supporting the chassis (18). <IMAGE>

Description

Preparation for ramming insulation boards into the wall

The invention relates to a device for ramming insulating panels into a wall with a pneumatic, hydraulic or electrically driven impact hammer whose impact piston is through an interface designed as a clamping jaw with a stem connected to the impact piston and guided in the leading channel of the impact hammer and a beak , which accepts insulating panels, acts on the front of insulating panels consisting of profiled, preferably corrugated steel or hard plastic panels.

AT-PS 335 689 discloses a process for drying a wet wall in which hard insulating panels of stainless steel or plastic are rammed into the wall so that they are tightly connected to one another. Insulating panels that are continuous throughout the width of the wall form a virtually durable barrier that reliably prevents moisture from advancing.

Proper and horizontal insertion of insulation panels into the wall requires special tools as well as the expertise of the operating staff. For this purpose, a hammer is used which acts through the interface on the front of the insulating panels. In order to reliably transfer impact energy to insulating panels and hold them horizontally in the wall, a device is known from AT-PS 364 149, wherein the interface is designed as a clamping jaw with a stem connected to the impact hammer of the impact hammer, and beak that accepts insulation panels. In this case, the guided stem of the clamping jaw must be adjusted in the hammer to the guide channel of the hammer.

Typical impact hammers, most often compressed air hammers, have a guide channel with a maximum hexagonal, relatively small cross-section at their plug end which receives the tool.

Rare cross-sections of similar dimensions are also rarely used. The stems of the clamping jaws may therefore only be made with a suitably small cross-section to fit the available guide grooves. For hexagonal guide channels, this results in an even smaller bearing cross-section of the stem, since it must be pushed into the hexagonal profile. At the point of extension from the stem to the beak of the clamping jaw or. in the area of stem representation, these conditions always lead to the breakage of relatively expensive tools.

Known hammers are further equipped with a device which protects tool insertion into the lead channel against failure. This may be a ball bar where spring-loaded spheres or similar locking pieces snap into the groove of the tool stem, or a mechanical snap lock that engages the hook or step of the tool with hook levers. In a further known embodiment, the tool stem is provided with a shoulder which, at the end of the stroke of the tool, hits the cap, is mounted or screwed to the end of the impactor.

US-PS 2 685 274 describes an embodiment in which a shoulder made of an elastic material is attached to the tool stem, which not only protects the tool against failure, but also suppresses its impact at the end of the stroke on the stroke and on the hammer at the entrance of the guide channel. The tool stem is designed in its entire length with the same diameter, and the elastic shoulder or collar is glued or vulcanized to the tool stem. From the preparation, the projecting end of the tool stem is designed as a striking chisel. Impact protection devices have a known impact hammer for relatively long life. In particular, it also protrudes the tool stem, which must be designed in the proper length, over the impact hammer.

For hammering insulation panels into the wall, AT-PS 364 150 is known to be mounted on a wall-mounted supporting frame on a percussive hammer. The impact hammer is thus provided on a bridge, which is adjustable in height and is supported on racks and carries a treadmill which can be driven transversely in the direction of driving. The treadmill is mounted on the treadmill in the direction of driving a removable sled on which the hammer is attached. With this support frame, the impact hammer can be quickly, effortlessly and accurately brought to the right position to drive the respective panel relative to the wall so that the insulating panel is precisely inserted into the slot in the wall. However, the load-bearing frame with a bridge, treadmill and retractable sled requires a relatively large space, which is not available everywhere. It is also essential that the width of the support frame is determined by the length of the impact hammer, which is mounted horizontally on the support.

It is an object of the invention to provide a simplified and substantially reduced device for ramming insulating panels into a wall which can be used even in limited space conditions, e.g. however, in narrow corridors, it nevertheless impregnably engages the panels, is robust and universally usable.

This task is solved according to the invention by the fact that the leading channel in the impact hammer for the clamping jaw stem in a manner known in the case of impact hammers with the tool protection device of the failure tool is cylindrical with only a slightly smaller diameter than the impact piston. and the stroke of the impactor piston extends the same diameter to the point of passage into the clamping beak without a step, and gives the guide channel shortened when the tool protection device is dropped.

The design according to the invention first enables the tool stem to be shortened and stronger in cross-section, which, in connection with the diameter being unchanged over the entire length of the stem, significantly increases the resistance of the stem to the impact load involved and to a large extent eliminates the risk of fracture. In order to receive a larger diameter of the tool stem, the leading hammer channel can be enlarged or rotated according to the designs used so far. It follows from the further advantage that all tools can have the same stem diameter and therefore fit all impact hammers, making storage considerably simpler and inexpensive.

In addition to the larger diameter design, the tool stem can also be greatly reduced in such a way that the beak receiving the insulating panels lies as close as possible to the leading end of the impact hammer for the stem or is connected directly to its outside end. This produces a robust clamping jaw that can withstand the risk of heavy shocks, bending loads and bends that occur due to the relatively wide beak required to straighten and guide the insulating panels when hammering.

An equally important advantage is finally achieved by the shortened design of the impact hammer, which can also be used in reduced space conditions, especially in narrow corridors. The shortened hammer can be held and guided manually during the hammering, but on the other hand, its space-saving design also allows the use of a small and simple frame for receiving it.

A preferred embodiment of the device according to the invention is that it is made of a conventional shortening hammer, e.g. by cutting the work through the impact piston of the projecting tool guide and by enlarging the bore of the guide channel, in particular with the available hexagonal guide, into a cylindrical shape. In this case, the conventional impact hammer eliminates the available tool for the protection of the tool against failure, thereby significantly shortening the overall length of the impact hammer. This measure allows the preparation according to the invention to be easily and commercially available from a commercially available conventional hammer.

According to the invention, the device can advantageously be designed in such a way that all guide jaws for the clamping jaws, regardless of the size of the impact hammer, have the same diameter, whereby the same clamping jaws can be used for all impact hammers. This completely results in a reduction in the cost of producing individual tools and, in addition, a further significant reduction in the cost of tool storage, since all tools correspond to all impact hammers. Finally, by extending the cross-section along the entire length of the shortened stem, an extension of the tool life is also noticeable. By shortening the stems, tools become easier at the end, thereby transferring the impact energy from the hammer to the insulation panels.

The devices according to the invention cannot be used only for embodiments in which the stem and beak of the clamping jaw consist of one piece. With the same advantage of the invention, it is possible to insert a stem into the leading channel in the impact hammer separately from the beak of the clamping jaws and, with its preferred slightly conical end, loosely clamp into the beak notch. In this case, the stem is separated from the front from the beak, which greatly reduces the risk of fracture at a particularly endangered crossing point.

Practically the same effect is achieved if, according to an embodiment of the invention, there is provided a connecting sleeve in which a stem is gripped at one end and is attached to the projection of the beak at the other end. Here, too, by dividing the front, the risk of fracture is excluded.

In a further embodiment of the invention, without a tool guard, a shortened design hammer may be positioned horizontally rigid but adjustable in a vertical direction on a wheel-mounted chassis with a horizontally running axis. This is an easy-to-drive chassis for a shortened impact hammer, on which the hammer is mounted only adjustable vertically. The support of the device, the feed movement when driving the panels and the lateral delay before the new plate are driven, are all followed by moving the chassis with the help of its wheels, and thus in a particularly easy way. This can be done manually by the operating person. Since no further impact hammer repositioning device is required other than vertical shifting and the impact hammer used is short, the chassis according to the invention is simple, small and flexible, so that it can be used virtually anywhere, especially in narrowed space conditions.

According to a further feature of the invention, a pneumatic or hydraulic gear cylinder can be arranged on the chassis to move the chassis with a hammer relative to the wall, the gear cylinder being supported against the wall via a pull-out support leg or connected to the wall by a rigidly connected one. towing devices. This simple accessory device is sufficiently supported by the hammer with the tool when hammering the plates and also performs forward movement so that the operating person has virtually no major physical effort when working with the preparation according to the invention.

Further details and advantages of the invention are apparent from the following description of the embodiments shown in the drawings. In this respect, FIG. 1 is a conventional device for ramming insulating panels into a wall in partially cross-sectional view; FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1, FIG. 3 is a device according to the invention shown in a similar view to FIG. 1, FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3, FIG. 5 and 6 are details of the tool versions, each in cross section, FIG. 7, 8 and 9 are a simplified embodiment of a device according to the invention with a chassis for holding the impact hammer; 7 and 8 are shown in the side view in FIG. 9 shows the chassis in a partially cross-sectional view from the front.

In FIG. 1, the apparatus presented consists of a hammer 1 with a movable impact piston 2 therein driven by e.g. pneumatic. The piston 2 operates through an interface designed as a clamping jaw 3 to the corrugated insulating plate 4. At the other end of the hammer there is a lever 5. The supply of drive air is traced through the pressure pipe 6. The impacts performed by the piston 2 are transmitted through the jaws 3. to plate 4, which is therefore rammed into the wall.

The jaw 3 consists of a stem 7 and a beak attached to it 8. The stem 7 is formed relatively long, pivotally guided in the guide channel 9 of the hammer 1 in an axial direction and equipped with a step 10 in its central part. The stronger portion 11 of the stem 7 is relatively large. clearance is provided by the funnel extension 12 of the hammer housing 1. In the area of this extension 12, conventional anchor hammers are provided with an anchor device for a connected tool that prevents it from accidentally disengaging from the impact hammer and falling out.

FIG. 2 implies that the channel 9 in the hammer 1 comprises a hexagonal cross-section, and the stem 7 of the jaw 3 must comprise a cross-section in this region that is smaller than the circle described in the hexagon of the channel 9.

FIG. 1 it is seen that the stem 7 and the associated channel 9 together with the extension 12 are relatively long, so that the device fully comprises a relatively large length. This means, in practice, that a sufficiently large working width is required in order for the preparation to work smoothly. However, the required working width is not available in many houses, e.g. narrow corridors, stairways, etc. In addition, the jaw 3 is prone to fractures due to the long and relatively thin stem 7, especially in the area of the step 10, where the notch effect cannot be completely ruled out.

In FIG. 3 shows an embodiment of the device according to the invention in the same representation as the conventional device of FIG. 1. Here, too, there is a tool set on the hammer 1 with a piston 2 whose jaw 3 slides in the hammer channel 9. Expansion 12, which is connected to the channel 9 and shown in FIG. 1, completely eliminated. The hammer housing 1 and also the stem 7 are suitably shorter. The stem 7 therefore has a substantially larger diameter than in FIG. 1.

As follows from FIG. 4, the channel 9 is cylindrical in design with only a slightly smaller diameter than the piston 2, thus allowing a larger cross-section of the stem 7. The stem 7 also extends from the piston 2 to the passage point into the beak 8 of the jaw 3 the same diameter without a step.

Based on the conventional hammer according to FIG. 1, the hammer of the invention of FIG. 3 in a simple way, by cutting the inverted portion of the hammer housing 1 to the jaw 3, thereby significantly reducing the impact hammer. Thereafter, only in conventional embodiments, the generally hexagonal channel 9 is cylindrical after drilling to the largest diameter possible. The stem 7 of the jaw 3 can then be shortened equally and designed without a step by a sufficiently large diameter, thereby achieving significant mechanical reinforcement and largely eliminating fracture. In addition, the same tool can be used for all impact hammers, making it much easier to store stock. After all, the jaw 3 becomes even easier with the shortening of the stem 7, thereby transferring the impact energy from it to the plate 4 with greater efficiency.

In the version shown in FIG. 5, the jaw 3 is divided. The stem 7 inserted into the channel 9 in the hammer 1 is separated from the beak 8 of the jaw 3 and, with its slightly tapered end 13, is loosely inserted into the recess 14 of the beak 8. In the embodiment of FIG. 6, a connecting sleeve 15 is provided, comprising a channel 16 transmitted through the center, which is approximately centered in the middle. In this sleeve 15, a stem 7 is gripped from one end (in the drawing on the left), and the sleeve 15 is connected to the projection 17 of the beak at the other end. there is a direct mechanical connection between the stem 7 and the beak 8, thereby ensuring the seamless transmission of hammer 1 impact to the rammed plate 4. By splitting the jaws 3 into the stem 7 and the beak 8, the risk of fracture in the transitional region is further reduced.

In FIG. 7, 8 and 9, the chassis presented 18 consists of four tubular stands 19 which are interconnected with the longitudinal beams 20 and the transverse beams 21 and at their lower ends comprise inverted wheels 22 in the longitudinal direction of the underbody 18. bearing blocks 24, 24 'and 24 shown in FIG. 9, a hammer 1 and a pneumatic or hydraulic gear cylinder 25 are attached, as shown in FIG. 7 and 8. The height adjustment of the track is assisted in FIG. 9 of the presented spindle 26, which is rotatable in the nut 28 by the lever 27. The nut 28 is attached at the upper end to a tubular stand 19 of a concentrically pushed adjusting tube 29 to which a wheel 22 is arranged at the lower end. By a simple rotation of the lever 27, a tubular stand is possible 19 it is practically possible to extend or shorten the hammer 1, which is precisely adjusted to the required height, on the holder 23.

The use of the inventive chassis 18 according to the invention can be seen in FIG. 7 and 8. The chassis 18 is thus, with one of its front faces, facing a wall 30 into which the plates 4 are to be inserted horizontally. The plates 4 are held in the jaw 3, whose stem 7, as shown in FIG. 3 is movably guided in hammer channel 1. The plates 4 are at their front end facing the wall slot 31 into which they are to be inserted. The precise orientation is followed by the height shifting of the chassis 18 by means of a lever 27. The insertion of the plates 4 into the slit 31 is accomplished by means of a hammer 1 and the feed movement of the chassis 18 towards the wall 30.

The feeder can be manually operated by inserting plates 4 into the wall 30. Since this requires a relatively large amount of effort, a pneumatic or hydraulic cylinder 25 is provided for the invention according to the invention. 7 strains a rope 33 through the reel 32, the end of which is hung by a hook 34 on a pipe 35 that is anchored, e.g. with pins 36, on wall 30. In this simple way, feed movement can be induced by the roller 25, a relatively large feed path is possible, since the feed due to the rope 33 via the roll 32 corresponds to a double stroke of the piston 25 of the cylinder 25.

In the embodiment of FIG. 8, the cylinder 25 acts directly on the support rod 38, which is rigidly attached to the cylinder or via the hinge 37, the free end of the rod 38 being firmly supported on the wall 40 by the extended leg 39. The rod 38 may be telescopically extendable, e.g. by means of the spaced holes provided at a distance from one another, which are projected to telescopically push portions of the rod interconnected with a somber inserted through the holes. Instead of a wall 40, the pole 38 with the leg 39 can also be anchored to the floor, e.g. by driving in concrete steel, etc. into the ground on which the pillar rests.

In this embodiment, too, the feed movement of the chassis 18 when ramming the plates 4 into the wall 30 with the roller 25 is followed, whereby the feed path can be increased practically arbitrarily by appropriate repositioning of the rod 38. As soon as the plate 4 is rammed into the wall 30, the chassis 18 is moved either manually or by rolling the cylinder 25 away from the wall 30 and offset about the width of the plate 4, and then, after inserting a new plate 4 into the jaw 3, it is inserted in the manner described. into the wall 30.

It is apparent from the description and drawings that the device according to the invention is relatively simple, small in size and easy to handle. It is basically universally usable, and due to its special properties it is especially suitable for use in limited spatial conditions, e.g. in cellars, narrow corridors and other inaccessible places, with light portability being a further advantage.

Claims (7)

Patent claims A device for ramming insulating panels (4) into a wall (30) with a pneumatic, hydraulic or electrically driven impact hammer (1) whose impact piston (2) is through an interface designed as a clamping jaw (3) with a stem (7) ) connected to the impact piston (2) and guided in the guide channel (9) of the impact hammer (1) and the beak (8) receiving the insulating panels (4) acting on the front of the insulating panels (4) consisting of Profiled, preferably corrugated steel or hard plastic panels, characterized in that the guide channel (9) is in the impact hammer (1) for the stem (7) of the clamping jaws (3) in a manner which is compatible with the hammer device protection of the tool failure stem by itself known, designed cylindrical with only slightly smaller diameter than the impact piston (2) and the stem (7) of the impact piston (2) to the point of passage into the beak (8) of the clamping jaw (3) diameter, and that the guide channel (9) is designed to be shortened upon failure of the tool safety device o. Device according to claim 1, characterized in that it is made of a conventional shortening hammer (1), e.g. by cutting the part (12) through the impact piston (2) of the projecting tool guide and by enlarging the bore of the guide channel (9), in particular with the available hexagonal guide, in a cylindrical shape. Device according to claim 1 or 2, characterized in that all the guide channels (9) for the clamping jaws (3), regardless of the size of the impact hammer (1), have the same diameter, with the same applicability for all impact hammers (1). clamping jaws (3). Device according to claim 1, 2 or 3, characterized in that a stem (7) is inserted into the guide channel (9) in the impact hammer (1) separately from the beak (8) of the clamping jaws (3) and with its preferred slightly tapered ends (13) loosely clamp into beak cutout (14) (8) · Apparatus according to claim 4, characterized in that a connecting sleeve (15) is provided, into which a stem (7) is gripped at one end and is attached to the projection (17) of the beak (8) at one end. Device according to one of Claims 1 to 5, characterized in that, without the tool guard, a shortened design hammer (1) can be arranged horizontally but rigidly, but adjustable, on a wheel (22) equipped with a chassis (18) with a horizontally running axis. vertical directions. Device according to Claim 6, characterized in that a pneumatic or hydraulic gear cylinder (25) is arranged on the chassis (18) to move the chassis (18) with the hammer (1) relative to the wall (30), the gear cylinder (25) being supported against the wall (30) via a pull-out support rod (38) or connected to the wall (30) by a rigidly coupled drawbar (32, 33, 34, 35).