DE202016105649U1 - conductor fuse - Google Patents

Abstract

Conductor fuse for securing a conductor (110) from falling over, the conductor fuse being mountable on an exposed upper end (101) of an upstand (100), in particular on an exposed upper end of a shoring wall, with two clamping modules (5), each clamping module (5) comprising: a clamping device (10) having a crown region (13) and two clamping arms (11, 12) connected over the crown region, the clamping arms (11, 12) being substantially parallel to each other from the apex region (13) a clamping device (20) with which the upstand (100) between the clamping arms (11, 12) can be releasably clamped by one of the clamping arms (11) with a contact surface (23) by the clamping device (20) a bearing on a side surface (24) of the upstand (100) is brought, and • an angled securing bracket (30), which with a first end portion (31) on the clamping device (10) and a second free end region (32), the end region (32) being spaced from the clamping device (10) and extending substantially parallel to the abutment surface (23), and having a connection device (40) the two Aufklemmmodule (5) in a parallel to the contact surface (23) extending transverse direction (53) spaced apart at a distance (53 a) are fixable, so that the distance (53 c) between the securing brackets (30) greater than the width of Conductor (110), wherein the free end portions (32) of the securing bracket (30) of the two Aufklemmmodule (5) facing each other and having a distance (53b) which is smaller than a width of the conductor (110).

Description

The invention relates to conductor fuse in the sense of a safety device for securing a ladder against falling over. The conductor fuse is mounted on an exposed upper end of a curb, in particular on an exposed upper end of a Verbauwand.

When excavations or ditches are excavated, the exposed pit walls must be stable. A collapse or slippage of the pit walls can endanger the safety of people, machines and structures. Therefore, pits may only be entered if the stability of their pit walls is guaranteed. Excavations with vertical pit walls are permitted without additional securing only up to a depth of 1.25 m and under other conditions.

To ensure the stability of higher pit walls or deeper excavations, they are usually installed, i. secured with a Verbauwand against slipping. It also pit equipment used, with which, for example, two opposite, vertical pit walls of a excavation are hedged. For this purpose, the pit walls are completely covered down to the pit floor by shoring walls. Support components such as cross braces dissipate forces acting on the shoring walls. In this case, an upper end of the Verbauwände the top of the supported pit wall each project by at least 5 cm, at a pit depth of more than 2 m at least 10 cm, so that at the top of the Verbauwände an exposed Aufkantung is formed.

From a pit depth of 1.25 m or more, stairs or ladders must be used for access into the pit. One of the most common causes of accidents when using ladders is that they are not sufficiently secured against falling over or overturning.

To protect against tipping ladders are traditionally chained to a strut of mine construction equipment. A problem, however, is that the ladder must be used unsecured while getting on and off. This represents a security risk.

Furthermore, the ladder has to be put on and off again and again while digging and filling the pit. With an installation depth of more than 4 m, the ladder typically has to be chained off more than ten times, put away, and then re-hooked and secured again. In addition, especially in narrow pits, the ladder is often chained off, set aside and later chained back to avoid being in the way when working in the pit. This increases the number of unsecured uses and the risk of incorrect chaining. Since the ladder fuse chains can not normally be fixed so tightly that the ladder to be secured does not move at all, there is still a certain risk of accident due to a sudden slippage of the ladder even when the ladder is chained.

The repeated connection and disconnection of the ladder also requires a considerable amount of time, which is reflected in a longer construction time and thus in higher construction costs.

The object of the present invention is to provide a conductor fuse for a conductor, which simplifies and improves the protection of a conductor against tipping over.

This object is achieved by a conductor fuse for a conductor with the features of claim 1.

The ladder fuse is suitable for mounting on an exposed upper end of an upstand. In particular, the conductor fuse can be mounted on an exposed upper end of a Verbauwand. The shoring wall can be part of a pit shovel. As previously mentioned, an upper end of a shoring wall typically has to project at least 5 cm above a pit wall supported by the latter, at least by 10 cm at a shallow depth of more than 2 m. The upper end of the Verbauwand thus forms an upstand with an upwardly exposed end. Since the Verbauwand has a sufficient stability or must have, the conductor fuse can be secured without security concerns. The ladder safety can also be attached to an exposed upper end of another upstand, for example on an exposed upper end of a wall formwork, a balustrade, a wall or a parapet. It goes without saying that each used upstand should have sufficient stability. The upstand preferably has a plate-shaped basic structure.

• • Eine Klemmvorrichtung mit einem Scheitelbereich und zwei über den Scheitelbereich verbundenen Spannarmen, wobei der Scheitelbereich zur Aufnahme des oberen Endes der Aufkantung zwischen den beiden Spannarmen geeignet ist. Die Spannarme sind ausgehend von dem Scheitelbereich voneinander beabstandet im Wesentlichen parallel zueinander angeordnet. Die Richtung der Spannarme gibt die Spannarmrichtung vor. Eine Längsrichtung der Klemmvorrichtung kann dadurch definiert sein, dass ein Abstand der beiden Spannarme senkrecht zu der Spannarmrichtung entlang der Längsrichtung minimal ist. Im Falle flächenartig ausgebildeter Spannarme steht die Längsrichtung üblicher Weise senkrecht auf den Spannarmflächen.
• • Eine Spannvorrichtung, mit der die Aufkantung zwischen den Spannarmen lösbar einspannbar ist, indem einer der Spannarme (mit einer Anlagefläche) durch die Spannvorrichtung zur einer kraftschlüssigen Anlage an einer Seitenfläche der Aufkantung gebracht wird bzw. bringbar ist, und
• • Einen abgewinkelten Sicherungsbügel, der mit einem ersten Endbereich an der Klemmvorrichtung angebracht ist und einen zweiten, freien Endbereich aufweist. Der Endbereich ist von der Klemmvorrichtung beabstandet angeordnet und erstreckt sich im Wesentlichen parallel zu einer Querrichtung, die senkrecht zu der Spannarmrichtung sowie zu der Längsrichtung verläuft. Mit anderen Worten verläuft der zweite, freie Endbereich des Sicherungsbügels parallel zu der Anlagefläche. Der erste Endbereich des Sicherungsbügels liegt dagegen vorzugsweise in einer Ebene, die senkrecht auf der Anlagefläche steht und in Spannarmrichtung verläuft.

The conductor fuse according to the invention comprises two Aufklemmmodule, each Aufklemmmodul comprises:

• A clamping device having a crown area and two clamping arms connected over the crown area, wherein the peak area is suitable for receiving the upper end of the upstand between the two clamping arms. The clamping arms are spaced apart from one another substantially parallel to each other starting from the vertex area. The direction of the clamping arms specifies the Spannarmrichtung. A longitudinal direction of the clamping device can be defined in that a distance of the two clamping arms perpendicular to the Spannarmrichtung along the longitudinal direction is minimal. In the case of flat-shaped clamping arms, the longitudinal direction is usually perpendicular to the Spannarmflächen.
• A clamping device with which the upstand between the clamping arms can be releasably clamped by bringing one of the clamping arms (with a contact surface) through the clamping device for frictional engagement with a side surface of the upstand, and
• • An angled circlip attached to a first end portion on the clamp and having a second, free end portion. The end region is spaced from the clamping device and extends substantially parallel to a transverse direction that is perpendicular to the clamping arm direction and to the longitudinal direction. In other words, the second, free end region of the securing clip runs parallel to the contact surface. By contrast, the first end region of the securing bow is preferably in a plane which is perpendicular to the contact surface and extends in the tensioning arm direction.

The clamping devices may have a U-shaped or J-shaped profile in a section and / or a projection in a plane spanned by the longitudinal direction and the tensioning arm direction. The minimum distance between the two clamping arms in the longitudinal direction may correspond approximately to the thickness which a plate-shaped upstand may have at most in order to be able to be accommodated between the clamping arms.

Thus, each of the Aufklemmmodule can be placed on the exposed upper end of the upstand (for example, from above or - if possible - from the side). The upstand between the two clamping arms is recorded. By clamping the upstand between clamping arms with the clamping device, the respective Aufklemmmodul is securely, but releasably fixed to the upstand. As a result, the conductor fuse can be used successively at different upstands and locations.

According to the invention, the clamping device also has a connecting device with which the two Aufklemmmodulen so in the (parallel to the contact surface extending) transverse direction are spaced from each other fixed, so that the distance between the safety brackets is greater than the width of the ladder. Thus, the head between the securing brackets is receivable, so that the head against a lateral tipping (along the upstand or Verbauwand) is secured.

The free end portions of the circlips of the two Aufklemmmodule facing each other and have after fixing by the connecting device at a distance which is smaller than a width of the conductor. As a result, the recorded between the circlips conductor is secured against tipping from the upstand or Verbauwand away.

When the ladder safety is fastened, the safety bars protrude from the upstand to the side where the ladder is turned on. For example, if the ladder fuse is mounted on the exposed upper end of a shoring wall, the free end portions of the safety shackles are on the side of the pit from which the ladder is to be made.

It can be provided that the two Aufklemmmodule can be connected by means of the connecting device and again completely separated from each other. If the clamp modules are not connected via the connecting device, they can be individually mounted on the upstand and removed individually from the upstand. Such a modular structure simplifies the construction, the dismantling and the transport of the conductor fuse.

Alternatively, the two Aufklemmmodule using the connecting device permanently or captively, but preferably be adjustable in the distance connected.

If the two Aufklemmmodule be fixed by means of the clamping and tensioning device on the upstand and fixed by the connecting device in the transverse direction as described above spaced from each other, and also the conductor is employed between the safety brackets, the safety clamps form a reliable tilt protection for the ladder. The ladder can be employed directly on the upstand, on the clamping device and / or on the connecting device.

Since the distance of the mutually facing free end portions of the securing bracket is smaller than the width of the ladder, these free end portions prevent tipping the ladder away from the upstand. More specifically, as the conductor moves away substantially along the longitudinal direction from the upstand and the clamper, it abuts the free end portions of the circlips so as to prevent further tilting. However, since a space is provided between the free end portions, users of the ladder are not significantly hindered by them.

Should the ladder threaten to overturn sideways, ie essentially along the transverse direction, then it comes to bear against one of the securing brackets which clamps or encloses the ladder according to the invention. Tipping the ladder to the side is thereby prevented.

The proposed conductor fuse ensures easy securing of the conductors against overturning, without the ladder having to be chained or otherwise secured. As soon as the ladder safety device is mounted on the upstand, the ladder can be easily adjusted from above, from below or by screwing in from the side between the safety clamps without additional work steps. To remove, it can be removed up or down between the circlips. The risky on and off the ladder without backup can be omitted. The attachment of the ladder safety on the upstand, however, is fast, because it only need the two Aufklemmmodule attached and their distance are fixed in the transverse direction. The time required for this is typically a maximum of 5 minutes.

A displacement of the safety device on the upstand is usually possible as a whole unit of the two interconnected by the connecting device Aufklemmmodulen what only the clamping and tensioning devices must be solved by the upstand.

In summary, the regular securing and unlocking of the ladder is easier and faster than before.

Preferably, the two Aufklemmmodule with the connecting device at different distances from each other in the transverse direction can be fixed. Then, the distance of the Aufklemmmodule in the transverse direction and in particular a distance of the securing bracket in the transverse direction can be easily adapted to the width of the ladder. As a result, the conductor fuse can be used flexibly for conductors of different widths. Particularly preferably, the distance between the Aufklemmmodule from each other in the transverse direction is continuously adjustable. Thus, the distance of the securing bracket in the transverse direction can be adjusted very precisely the width of the ladder, so that even a small lateral tilting of the ladder is reliably prevented. Preferably, the conductors are clamped between the clamping arms with just enough play that the conductors can be inserted between the clamping arms.

A connecting device, via which the two Aufklemmmodule are permanently connected, but at the same time allows a fixation of the Aufklemmmodule at different distances from each other in the transverse direction, for example, comprise a fixable in various lengths Nuremberg scissors, which as a joint chain of several crossed rods (scissor levers) is constructed.

In an advantageous embodiment, the two Aufklemmmodule are mirror-symmetrical. This simplifies the handling and construction of the conductor fuse.

Preferably, the securing brackets are each substantially L-shaped, wherein the free end region forms the short leg of the L-shape. Accordingly, the other, attached to the clamping device first end portion is part of the long leg of the L-shape. Circlips this form are particularly simple and inexpensive to produce. They are also comparatively compact.

Particularly preferably, the long legs each extend at least substantially parallel to the longitudinal direction. If the conductor fuse is applied as intended on the upstand, a distance in the transverse direction between the long legs then remains at least substantially constant, so that a guide of the ladder against lateral tilting is guaranteed even if the ladder tilts slightly away from the upstand and / / or comes to rest on the free end portions of the circlips.

In a preferred embodiment, the clamping devices of the two Aufklemmmodule each comprise an internal thread in one of the clamping arms and a screw, in particular in the clamping surface opposite the contact surface. The screw is guided in the internal thread. By tightening the screw, the upstand between the clamping arms of Aufklemmmoduls be clamped by the contact surface of a clamping arm is pulled and fixed by tightening the screw against the side surface of the upstand. Eyebolts can be used as screws. These have the advantage that they can be easily operated even without special tools. For example, a worker may tighten or open an eyebolt using a large forceps, a mason's hammer, or a carpenter's hammer. For this purpose, a front part of the hammer head is simply inserted into an eye of the eye bolt, so that the hammer provides a lever arm for adjusting the screw.

In a particularly preferred embodiment, the screw and the internal thread for both Aufklemmmodule can be carried out each self-locking. This prevents that the clamping of the upstand dissolves undesirable.

In one development of the invention, the connecting device can be attached or fastened in each case to the vertex areas of the clamping modules. If the ladder safety device is fastened to the upstand, the apex areas are located on top of the upstand and are free upwards. The fact that the connecting device attaches to it, it is particularly accessible. The fixation of the distance of the Aufklemmmodule in the transverse direction is therefore particularly easy to carry out and verifiable. If the Aufklemmmodule are separable from each other, the easy accessibility of the connecting device in the proposed embodiment also allows the Aufklemmmodule first individually to fix on the upstand and only then to connect using the connecting device.

In an advantageous embodiment, the connecting device has a rod and for both Aufklemmmodule each provided in the apex region implementation for the rod, wherein the rod is fixable in the bushings. The rod may have a flat or round profile. As a flat profile in particular rectangular, square, diamond-shaped and similar profiles are to be understood as round profiles in particular also oval and elliptical profiles. For example, the bar may be a bar or a bar. The rod may be hollow, profiled and / or solid. If the rod is fixed in the two bushings, this also fixes the distance of the Aufklemmmodule in the transverse direction.

In a particularly advantageous embodiment, the rod is separable from one or both Aufklemmmodulen if it is not fixed in the bushings. As a result, the Aufklemmmodule be connected by means of the rod and completely separable from each other. The above benefits apply accordingly.

Furthermore, according to the invention, the rod can have a locking aid for ensuring a certain spacing of the clamping modules in the transverse direction. The locking aid may for example comprise recesses for receiving a screw and / or the free end of the screw. When the rod is fixed, one end of the screw is received in this recess, and even under heavy load displacement of the rod relative to the screw is also prevented by positive locking. Other possible locking aids are, for example, internal threads for screws, holes for receiving bolts, locking lugs or locking cams and recesses for bolt.

Alternatively or additionally, the clamping device for fixing a distance or more distances of the Aufklemmmodule in the transverse direction, for example, one or more of the following elements: bolts, ball lock pins, screws, nuts, clamping lever, clamping lever and snap-in connections.

In a further development of the invention, the conductor fuse may additionally have a suspension device to which the conductor is suspendable or can be hung. For example, a standing in a pit ladder, which is employed between the circlips, be easily hung on the hitch. Since the ladder should be employed for tilt protection at 68 ° to the horizontal, it blocks in the salaried state in the pit significantly more space than if it is hung substantially perpendicular to the conductor fuse, without this a safety loss must be accepted. In addition, when the ladder is suspended, the pit floor, for example, is freely accessible for work. This is particularly advantageous when digging and / or filling the pit. In addition, the hanging of the ladder is advantageous when a pipe must be left in the excavation, for example, in the PE welding of pipelines.

Particularly preferably, the suspension device comprises two rung holder, wherein on the two Aufklemmmodulen in each case a rung holder is provided which is attached to the clamping arm with the contact surface and in the direction of the free end of the securing bracket, i. into the pit, points. For example, if the ladder fuse is mounted on an exposed upper end of a shoring wall, the rung holders of the clamping modules are respectively located on the clamping arm facing the pit. Since the shoring wall is clamped between the clamping arms and the rung holders are located on said clamping arm inside the pit, the ladder in the pit, more precisely at the edge of the pit, can be hung. On the one hand, it can be attacked and hung from the inside of the pit. On the other hand, since the ladder has to be long enough to be securely fastened, it can also be touched from above, pulled up a bit and hung up.

The suspension and re-engagement of the ladder takes very little time, which increases the acceptance of this safety measure. An additional protection is ensured by the fact that the ladder remains between the safety brackets during suspension and suspension, so that it can not overturn either laterally or away from the upstand during suspension and suspension.

Most preferably, the rung holder are designed so that they do not protrude between the ladder struts at an angle of incidence of the head of a maximum of 75 ° relative to the horizontal ladder. Thus, the rung holders hinder the use of a properly hired ladder. The rung holder may in particular be angled at the opposite end of the crown region of the clamping arm and have approximately in the direction of the securing bracket or the free end of the securing bracket. The length of a rung holder is no longer, preferably shorter, than that of the long legs of the L-shaped securing bracket and at least about as long as twice to three times the depth of the ladder, ie twice to three times the depth of the ladder stile. As a result, the rung holder has a length such that the rungs of two superimposed ladders (eg an extension ladder) can both be hung together in the rung holder.

If the rung holders nevertheless protrude into an area between the ladder stiles, this is an indicator that the recommended angle of attack of a maximum of 75 ° is not maintained. This represents an additional visual security feature.

In a further, preferred embodiment of the invention, in each case the first end region of the securing strap is attached to the crown region and / or to the tensioning arm with the contact surface in both clamping modules. This eliminates the need to guide the circlips over the apex area. In addition, the lever arm between the attachment and the free end portion of the securing bracket is particularly small. This is advantageous for the reliability and robustness of the circlips.

Preferably, in both Aufklemmmodulen each of the clamping arm can be formed with the contact surface longer than the clamping arm with the clamping device. This is advantageous, for example, for use in pit construction equipment, when the upper end of the Verbauwand projects beyond the upper end of the supported pit wall only a few inches. The longer clamping arm on the inside of the pit allows safe guidance and support of the ladder safety device. In addition, it can be carried out long enough so that parts of a suspension device for the ladder, for example a rung holder, can be arranged on it without hindering the use of the properly employed ladder. At the same time, the shorter clamping arm is adapted to the only slight projection of the Verbauwand outwards. In the same way, this embodiment is advantageous if the conductor fuse on an attic (eg. In the form of a flat Aufkantung on the edge of a flat roof) is attached.

According to the invention, the clamping arms can each be formed substantially plate-shaped. If the conductor fuse is properly secured to a substantially plate-shaped upstand, at least one of the clamping arms is flat against the upstand, so that the contact surface of the clamping arm is actually flat and not only defined by the clamping arm defined investment points on the upstand. As a result, a wobbling, tilting or twisting of the attached Aufklemmmoduls safely prevented, although other embodiments can be realized in the invention.

Preferably, the securing brackets are adjustable. The circlips can be designed to be adjustable in length, height and / or in the transverse direction. As a result, the conductor fuse can be adapted even better and more flexibly to the conductor to be protected and / or the environmental conditions. In particular, the circlips can be adjusted so that they are not or as little as possible in the way when using the ladder.

In a particularly preferred embodiment of the invention, the securing bracket can be arranged foldable on the clamping device. By folding away the securing bracket, the respective Aufklemmmodul is compact. This facilitates the handling and transport of the conductor fuse. Preferably, a hinge can be provided for the hinged arrangement of the securing bracket on the clamping device, which allows a folding of the securing bracket about an axis extending in the transverse direction. In particular, the hinge may be attached to the tensioning arm or the crown area and allows adjustment of the securing bracket by up to about 90 ° between the orientation of the securing bracket parallel to the tensioning arm and an orientation perpendicular to the tensioning arm. In the orientation perpendicular to the clamping arm of the securing bracket is preferably in a plane with the apex region of the clamping device.

When the ladder is set in the ladder safety, the safety bar (for example, by a helping person or by a suitable movement of the ladder itself) is brought into a position in which the safety bar lies in a plane with the side area or only a small angle ( for example, up to about 10 ° or 15 °). So there is enough freedom of movement to align the conductors in the conductor fuse. Once the ladder in the ladder safety is properly aligned and held, the safety bar will fall downwards in normal directional ladder safety orientation, ie the safety bar will fold in the direction of the clamp arm until the free end of the safety bar is against the beam of the ladder being secured , As a result, the space required for the conductor fuse eg. In the excavation is minimized, and a Danger of injury from protruding circlips is reduced when walking the ladder.

In an advantageous embodiment of the invention, the minimum distance of the clamping arms in the longitudinal direction is at least 10, more preferably at least 18 cm. As a result, the conductor fuse can also be applied to correspondingly thick upstands.

Most preferably, the ladder safety can be mounted on upstands with a thickness of 2 cm to 30 cm, most preferably 6 cm and 18 cm. Thus, in particular the typical thicknesses of Verbauwänden and wall formworks are included.

In the event that the two Aufklemmmodule can be completely separated from each other and that the individual Aufklemmmodule are fixed firmly and securely and at the correct distance in the transverse direction on the upstand, the additional fixation of the distance in the transverse direction exceptionally be dispensable. Nevertheless, it is always advised for safety reasons.

The invention will be explained below with reference to embodiments and with reference to the drawings. All described and / or illustrated features alone or in any combination form the subject matter of the invention, regardless of their summary in the claims or their back references.

Show it:

1 a conductor fuse according to a preferred embodiment of the invention in a side view;

2 the conductor fuse 1 in front view;

3 the conductor fuse 1 in the top view;

4 a fastened on a back up ladder fuse in the side view accordingly 1 with conductors employed between the circlips;

5 the mounted on the upstand conductor fuse 4 with suspended ladder in the same side view; and

6 a further embodiment of a conductor fuse in the illustration accordingly 5 with a folding safety bar

In 1 is a possible embodiment of the conductor fuse according to the invention 1 shown in a side view. The security device 1 has two Aufklemmmodule 5 on, of which in perspective conditioned in 1 only one can be seen. The viewing direction corresponds to a transverse direction 53 in which the two Aufklemmmodule 5 arranged one behind the other. Perpendicular to the transverse direction, a Spannarmrichtung extend 51 along two clamping arms 11 . 12 the Aufklemmmodule 5 and a longitudinal direction 52 , where the longitudinal direction 52 perpendicular to the transverse direction 53 and the clamping arm direction 51 runs.

These directions are in 1 are drawn and are used in the following also in the description of the safety device.

Each mounting module 5 includes a clamping device 10 with (in the longitudinal direction) a front clamping arm 11 and a rear tension arm 12 , The two clamping arms 11 . 12 are through a crest area 13 connected and extend from the apex area 13 parallel along the clamping arm direction 51 , The clamping arms 11 . 12 are in the longitudinal direction 52 at a distance 52a arranged. The front tension arm 11 is longer than the rear tension arm 12 , The two clamping arms 11 . 12 and the vertex area 13 the clamping device 12 form in the side view therefore a J-shaped profile, which in 1 is shown standing upside down.

At the rear tension arm 12 is a tensioning device 20 provided, which is a threaded sleeve 21 with an internal thread and an eye screw engaged with the internal thread 22 having. The threaded sleeve is on the rear clamping arm 12 welded. The internal thread can also be attached to the rear tensioner arm in a different way 12 set, for example, introduced into this, be. The eye bolt 22 may also be shorter or longer than shown. Instead of the eye bolt 22 Another screw can be used. The eye bolt 22 However, it has the advantage that it can be tightened and loosened without special tools (eg with a mason carpenter hammer). The free end of the eye bolt moves 22 on a contact surface 23 the front clamping arm too. Alternatively and / or additionally, a tensioning device can also be attached to the front tensioning arm 11 be provided.

At the vertex areas 13 the Aufklemmmodule 5 is a connection device 40 provided, whose function is off 2 becomes apparent. 2 shows the conductor fuse 1 according to 1 in the front view looking along the longitudinal direction 52 , One along the transverse direction 53 extending staff 41 with in this example rectangular cross section (see 1 ) connects the two Aufklemmmodule 5 , At the vertex areas 13 the Aufklemmmodule 5 is for connection in each case at least one implementation 42 provided, the part of the connecting device 40 is. The rod 41 is through both bushings 42 put through and fixed in each case. This is on each of the two implementations 42 one threaded sleeve each 43 provided with an internal thread, with which in each case an eye shield 44 engaged. By tightening (tightening) the eyebolt 44 (or a differently designed screw) is the rod 41 in the respective implementation 42 fixed. The bushings 42 are designed to hold the rod 41 enclose transversely to its longitudinal direction. The rod 41 is therefore safe in the bushings 42 guided. In summary, the connection device comprises 40 So the staff 41 , the executions 42 with the threaded sleeves 43 and the (eye) screws 44 ,

The two Aufklemmmodule 5 are at a distance 53a along the longitudinal direction 53 spaced apart by the connecting device 40 fixed. They can not be shifted or twisted in this condition.

With the help of the connecting device 40 are the two Aufklemmmodule 5 also at different intervals 53a along the transverse direction 53 fixable from each other. The connection device described above 40 allowed along the pole 41 even a continuous adjustment of the distance 53a ,

If the eye bolts 44 the connecting device are solved, the rod 41 along the transverse direction 53 from the bushings 42 be pulled out. The two Aufklemmmodule 5 can be completely separated from each other. This facilitates the attachment, dismantling, transport and handling of the conductor fuse 1 ,

3 shows the conductor fuse 1 out 1 in the view with view along the Spannarmrichtung 52 from above, so with a view of the vertex areas 13 the Aufklemmmodule 5 and the connection device 40 , At each clip-on module 5 is each a safety bar 30 appropriate. Both circlips 30 Each has an L-shaped structure with a short leg and a long leg. Every circlip 30 is with a first end area 30 , which is part of the long thigh, at the apex area 13 of the respective Aufklemmmoduls 5 attached, wherein the long legs of the securing bracket preferably in the longitudinal direction 52 ie perpendicular to the contact surface 23 of the front tension arm 11 , run. The short legs of the circlips 30 each form second, free end portions 32 extending along the transverse direction 53 extend.

The two Aufklemmmodule 5 are symmetrical (in particular mirror-symmetrical to a clamped by the Spannarmrichtung and the longitudinal direction plane), and the free end portions 53 are facing each other, but at a distance 53b spaced apart along the transverse direction. The free end areas 32 thus extend parallel to the contact surface 23 ,

In the 2 and 3 it can be seen that the clamping arms 11 . 12 and the vertex areas 13 the clamping devices 10 are each formed substantially plate-shaped. This ensures a particularly large contact surface.

For use, the conductor fuse 1 , as in 4 shown on a free top 101 an upstand 100 attached. The upstand 100 is formed in the illustrated example by a Verbauwand. The upstand becomes more precise 100 in both Aufklemmmodulen 5 each between the clamping arms 11 . 12 using the tensioning device 20 clamped by the eyebolt 22 the clamping device in the threaded sleeve 21 is screwed while a particular non-positive investment of the contact surface 23 of the front tension arm 11 on a side surface 24 the upstand 100 , ie in this example the Verbauwand causes.

The distance 53a the two Aufklemmmodule 5 along the transverse direction 53 is through the connecting device 40 adjusted so that the ladder 110 between the two circlips 30 can be hired. There is a gap 53c between the two long legs of the catches 30 (please refer 3 ) the width of the ladder 110 adjusted so that these are straight between the circlips 30 can be inserted. If the ladder, as in 4 shown between the circlips 30 on the upstand 100 or at the clamping devices 10 the safety device 1 is employed, prevent the long legs of the circlips 30 a lateral overturning and / or slipping of the ladder 110 ,

Besides, the distance is 53b between the two free end areas 32 the safety bar 30 smaller than the width of the ladder 110 , As a result, the circlips form 30 a surround for the ladder 110 , When the ladder 110 from the upstand 100 (forwards) tilts, she comes to the free end area 32 (in 4 and 5 perspective shown only dashed) to concern. The free end areas 32 prevent the ladder from tipping over 110 from the upstand 100 path.

At each of the Aufklemmmodule 5 is in each case on the (front) clamping arm 11 with the support surface 23 which is the free end area 32 of the securing bracket 30 closer than the rear tension arm 12 , a rung holder 14 appropriate. The ladder 110 is in 4 according to the safety requirements in one setting angle 113 set at 68 ° to the horizontal, in the representation of the longitudinal direction 52 equivalent. As every rung holder 14 each at a lower, the apex area 13 remote end region of the corresponding front clamping arm 11 attached, touch the rung holder 14 in the 5 correctly employed leaders 110 Not. In other words, the rung holders hinder 14 the correct starting of the ladder 110 Not.

The ladder 110 consists essentially of two parallel spars 111 (of which in 4 and 5 in perspective, only one is visible and the depth of the spar 111 in the top view from the side) and a variety of sprouts 112 , which are transverse to the spars 111 extend between them. When the ladder 110 is used with an angle of more than 75 °, which is to be avoided for safety reasons, then protrude the rung holder 14 in an area between the spars 111 the leader 110 , Thus, the rung holder serve 14 also as an optical and / or mechanical obstructive indicator that the ladder 110 is not hired at too steep an angle.

The ladder 110 can, as in 5 shown with one of her sprouts 112 at the rung holders 14 be hung up. The two rung holders 14 thus form a suspension device 15 , These are the rung holders 14 preferably lower, ie the apex area 13 opposite, end of the front or longer clamping arm 11 mounted at an angle so that the free ends of the rung holder obliquely upward, approximately in the direction of the free ends 32 the safety bar 30 , point.

When the ladder 110 in the suspension device 15 is suspended, it hangs down approximately vertically and does not have to get up with its lower end on a ground. By hanging, the ladder takes 110 less space, for example in the excavation, a. A big advantage is that the ladder 110 not between the two catches 30 must be taken out when between the employed position ( 4 ) and the suspended position ( 5 ) is changed. It is also secured against tipping during this position change. This is especially important when the ladder 110 is handled from below. If the ladder were not secured, people close to the bottom of the ladder could 110 are severely injured when the ladder tips over.

The conductor fuse according to the invention 1 is used for simple, fast and reliable securing of the conductors 110 against tipping over. Once the conductor fuse 1 on the upstand 100 fixed, the ladder can 110 when needed, simply from the top or bottom between the circlips without any extra work 30 pushed in and on the upstand 100 be employed.

The ladder 110 Can also save space on the rung holders 14 be hung up. The change between the employed position and the suspended position is easy and fast while maintaining the anti-tip device possible. In summary, the ladder fuse increases 1 safety and ease of handling the safety measures prescribed for the ladder. This leads to a higher acceptance.

6 shows a further embodiment of a conductor fuse according to the invention 60 just by the circlip 63 from in the 1 to 5 illustrated embodiment of the conductor fuse 1 different. Therefore, for the other features of the conductor fuse 60 The same reference numerals are used, and it will be omitted to re-describe these features.

The safety bar 63 is about a hinge 64 with its first end area 61 can be folded or tilted on the clamping device 10 the conductor fuse 60 set, where in 6 two tilt positions are shown. According to the curved double arrow, the circlip can 60 in extension of the vertex area 13 (ie in the longitudinal direction 52 ). Starting from this position, preferably the maximum Abklappung of the clamping arm 11 corresponds, the safety bar can 63 in the direction of the tensioning arm 11 (in the illustration and a typical orientation in the application: down) are folded down to the (second) free end 62 of the securing bracket 63 and / or the safety bar 63 at a stop strikes. If no ladder 110 in the ladder fuse 60 is held, usually forms the tension arm 11 the stop, ie the safety bar 63 Hangs parallel or substantially parallel to the tension arm 11 on the hinge 64 ,

Is against it, as in 6 shown a ladder 110 on in the ladder fuse 60 , forms the spar 11 the head of the stop for the free end area 62 , The safety bar 63 encloses then straight to be secured ladder 110 without further attention. This is the safety bar 63 Also, do not get in the way when a person is on the ladder at the circlip 63 passed in its safety position. This reduces a risk of injury through the safety bar 63 ,

LIST OF REFERENCE NUMBERS

1

 conductor fuse

5

 Aufklemmmodul

10

 clamping device

11, 12

 clamping arm

13

 apex region

14

 rung holder

15

 suspension

20

 jig

21

 threaded sleeve

22

 eyebolt

23

 contact surface

24

 Side surface of the upstand

30

 safety catch

31

 First end area

32

 Free end area

40

 connecting device

41

 Rod

42

 execution

43

 threaded sleeve

44

 eyebolt

51

 Spannarmrichtung

52

 longitudinal direction

52a

 distance

53

 transversely

53a, 53b, 53c

 distance

60

 conductor fuse

61

 First end area

62

 Free end area

63

 safety catch

64

 hinge

100

 backsplash

101

 Top end

110

 ladder

111

 Holm

112

 rung

113

 angle of attack

Claims (14)

Ladder fuse for securing a ladder ( 110 ), with the lead fuse on an exposed upper end ( 101 ) an upstand ( 100 ), in particular on an exposed upper end of a Verbauwand, attachable, with two Aufklemmmodulen ( 5 ), each clip-on module ( 5 ): a clamping device ( 10 ) with a vertex area ( 13 ) and two clamping arms connected via the apex region ( 11 . 12 ), the clamping arms ( 11 . 12 ) starting from the vertex area ( 13 ) spaced apart substantially parallel to each other, • a clamping device ( 20 ), with which the upstand ( 100 ) between the clamping arms ( 11 . 12 ) is releasably clamped by one of the clamping arms ( 11 ) with a contact surface ( 23 ) by the tensioning device ( 20 ) for an attachment to a side surface ( 24 ) of the upstand ( 100 ), and • an angled securing bracket ( 30 ), which has a first end region ( 31 ) on the clamping device ( 10 ) and a second free end region ( 32 ), wherein the end region ( 32 ) of the clamping device ( 10 ) is arranged spaced apart and substantially parallel to the contact surface ( 23 ) and with a connecting device ( 40 ), with which the two Aufklemmmodule ( 5 ) in a parallel to the contact surface ( 23 ) extending transverse direction ( 53 ) spaced apart at a distance ( 53a ) are fixable, so that the distance ( 53c ) between the safety brackets ( 30 ) greater than the width of the ladder ( 110 ), the free end regions ( 32 ) the safety bar ( 30 ) of the two Aufklemmmodule ( 5 ) are facing each other and a distance ( 53b ) smaller than a width of the conductors ( 110 ). Conductor fuse according to claim 1, characterized in that the two Aufklemmmodule ( 5 ) with the connection device ( 40 ) at different intervals ( 53a ) of each other in the transverse direction ( 53 ) are fixable. Conductor fuse according to claim 1 or 2, characterized in that the two Aufklemmmodule ( 5 ) are mirror-symmetrical. Conductor fuse according to one of the preceding claims, characterized in that the securing bow ( 30 ) are each formed substantially L-shaped, wherein the free end region ( 32 ) forms the short leg of the L-shape. Conductor fuse according to one of the preceding claims, characterized in that the clamping devices ( 20 ) of the two Aufklemmmodule ( 5 ) in each case an internal thread in the contact surface ( 23 ) opposite clamping arm ( 12 ) and a screw ( 22 ), in particular an eyebolt. Conductor fuse according to one of the preceding claims, characterized in that the connecting device ( 40 ) at the vertex areas ( 13 ) the Aufklemmmodule ( 5 ) is attached. Ladder fuse according to claim 6, characterized in that the connecting device ( 40 ) a pole ( 41 ) and at both Aufklemmmodulen ( 5 ) one each in the vertex area ( 13 ) ( 42 ) for the rod, wherein the rod ( 41 ) in the bushings ( 42 ) is fixable. Ladder fuse according to one of the preceding claims, characterized by a suspension device ( 15 ), where the ladder ( 110 ) is suspended. Ladder fuse according to claim 8, characterized in that the suspension device ( 15 ) two rung holders ( 14 ), wherein at the two Aufklemmmodulen ( 5 ) each a rung holder ( 14 ) provided on the tensioning arm ( 11 ) with the contact surface ( 23 ) is attached. Conductor fuse according to one of the preceding claims, characterized in that in both Aufklemmmodulen ( 5 ) the first end region ( 31 ) of the securing bracket at the vertex area ( 13 ) and / or on the tensioning arm ( 11 ) with the contact surface ( 23 ) is attached. Conductor fuse according to one of the preceding claims, characterized in that in both Aufklemmmodulen ( 5 ) each of the tensioning arm ( 11 ) with the contact surface ( 23 ) is longer than the tensioning arm ( 12 ) with the tensioning device ( 20 ). Ladder fuse according to one of the preceding claims, characterized in that the clamping arms ( 11 . 12 ) are each plate-shaped. Conductor fuse according to one of the preceding claims, characterized in that the securing bow ( 30 ) at the apex area ( 13 ) and / or the tensioning arm ( 11 ) with the contact surface ( 23 ) are adjustably attached. Conductor fuse according to one of the preceding claims, characterized in that the securing bow ( 30 ) hinged on the clamping device ( 10 ) are arranged.

Images