SK279752B6 - Safety gate - Google Patents

Abstract

There is described a safety gate (7) for an emptying apparatus (3) for emptying refuse containers (1). The apparatus has at least a first movable gate part (9) and second gate part (8), whilst the first moveable gate part (9) being moveable into a rest and safety position. In order to allow manipulation by the operating personnel and to ensure that actuation of the emptying apparatus (3) is possible only in the position of safety, all operating elements (10) for the emptying apparatus (3) are attached to the first, moveable gate part (9). A total length of the parts (8, 9) of the gate (7) equals, at least, a depth of the working area (22) of the emptying apparatus. In the rest position of the first moveable part (9) of the gate (7), the operating elements (10) of the emptying apparatus (3) are concealed by the second part (8) of the gate (7).

Description

Technical field

The invention relates to a safety bolt of an emptying device for emptying garbage containers into a collection container, with at least one first and one second part, wherein at least the first bolt part is movable to a rest and locking position.

BACKGROUND OF THE INVENTION

DE-PS 34 05 997 discloses a container emptying device in which the working area in the vicinity of the tilting device or the lifting and tilting device is secured by means of barriers acting blocking the control circuit. These obstacles are rotatable about a horizontal axis on the side walls of the garbage vehicle or on a respective device to protect the operating personnel and unauthorized persons, for example bystanders. These are, inter alia, the barriers which are rotated upwards in the rest position and rotated downwards in the working position and then occupy a substantially horizontal position. In the operating position, these bolts control the switching element which switches the current control circuit to control the discharge device. In the quiet position of said obstacle, this switch is released, thereby breaking the current control circuit. It has been shown that these barriers can be handled so that the emptying device continues to operate even after the barriers have not locked.

EP-OS 0 278 307 discloses a locking device for a lifting and tilting or tilting device in which the collecting container inlet opening is provided with an orifice which surrounds the working area of the lifting and tilting or tilting device as a hatch. This screen is made up of a plurality of wall parts, connected by means of guide rails movably to the collection container. Likewise with this orifice there is provided an electric switch arranged in the current control circuit for controlling the discharge device, and which is only switched on in the closed operating position of the orifice. It is also possible with this shutter that the switch can be manipulated so that the protection of the working space of the lifting and tilting device by means of a hatch need not be delayed at all in order to operate the lifting and tilting device.

In order to avoid that the locking device provided can be bypassed, a lateral screen of the emptying device has already been developed which carries the operating elements of the emptying device. The operating elements are covered by the movable bolt part after it has reached a quiet position. In order to access the operating elements of the emptying device, the barrier part must swing down to the locking position. However, this type of safety barrier has the disadvantage that the movable part of the barrier can be removed and has no effect on the emptying device or its operation. When this movable barrier part is removed, the operating elements are freely accessible and the emptying device can be operated without restriction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a safety barrier which allows the emptying device to be operated only in the locking position and which cannot be manipulated.

SUMMARY OF THE INVENTION

This is accomplished by the safety bolt of the emptying device for emptying garbage containers into a collection container, with at least one first and one second part, wherein at least the first bolt part is movable to a rest and locking position according to the invention. the bolt is at least equal to the depth of the working area of the emptying device, all the operating elements of the emptying device being located on the first movable barrier part and in the rest position of the first movable barrier part (9).

In known emptying devices, the operating elements of the emptying device are generally located on the emptying device directly or on a collection container. The safety devices, such as the various barriers and the like, which are provided in this case, are spatially separated from the operating elements, so that the dismantling of the safety barriers or the handling of their respective switches has no effect on the operation of the emptying device.

The invention is based on the finding that manipulation is no longer possible even when all the operating elements of the emptying device are located on the movable bolt part which secures the working area of the emptying device laterally, the first movable bolt part cooperating with the second bolt part so that the elements of the emptying device are inaccessible in the rest position of the first movable barrier part. This means that the operator must first move the first movable bolt part to the locking position in order to operate the emptying device. Working area means the area behind the collecting container that is needed for the emptying device with the garbage container gripped during the emptying process.

Removal of this first movable bolt part would result in removal of the operating elements of the emptying device. Fixing to the barrier part closer to the collecting container would not achieve the desired success, since then the barrier parts could be disassembled in such a way that it does not affect the operation of the emptying device and the operating area of the emptying device is no longer fully secured.

In addition to the first and second panels, the security bolt may have other panels which may be arranged, for example, between the first and second panels, between the second panel and the collecting container, or at the free end of the first panel.

In order that the operating elements are not accessible in the rest position, which would otherwise give the operator the reason to keep the movable bolt part in the rest position, the second bolt part is formed such that it covers the movable bolt part '.

Advantageously, the operating elements are arranged at the free end of the first movable bolt part so that, especially when emptying large garbage containers, the operator can push the container for storage and at the same time reach the operating elements.

The operating elements can also be arranged at the supported end of the first movable barrier part, which has the advantage that the operating elements are fully and unobstructed accessible only in the locking position of the moving barrier part. In this case, the operator is preferably completely outside the working area of the emptying device.

A further possibility is that the operating elements are arranged on the outside of the first movable barrier part. The second bolt part is then formed such that the first movable bolt part in the rest position is stored therein at least as far as the operating elements are inaccessible.

Between the rest position and the locking position, the moving part of the bolt must travel a certain distance. In fact, it is possible for the operator to pull the movable bolt part in the rest position only so far that the operating elements are at least partially accessible. In this case, however, the safety barrier cannot fully develop its operation. In order to prevent this, at least one concealed switching element is provided according to a further embodiment of the invention, which is operable and inversely operable when the first movable barrier part is moved from the rest position to the securing position. Advantageously, the switching element is arranged inside one of the two parts of the bolt so that it is then not accessible from the outside and cannot be operated by the operator. The switching element is arranged in such a way that it is accessible only after the movable barrier part has been removed.

The switching element is preferably designed to interrupt the power supply to the service elements in the rest position of the movable bolt piece, the power supply to the service elements being only secured when the first movable bolt portion is in the locked position. A further possibility is that the switching element emits a signal according to the position of the movable barrier part on the control device of the discharge device. In this exemplary embodiment, the operating elements are non-functional in all positions of the movable barrier part except for the locking position.

The security barrier can be implemented in various ways. According to one embodiment, the first bolt part is arranged directly on the emptying device or on the collection container. The second part of the barrier, which has the task of covering and preventing access to the operating elements in a quiet position, is an integral part of the emptying device or the collecting container. For this purpose, it is sufficient, for example, to provide, on the collection container, a part provided with a recess in which the operating elements interfere when the first barrier part movable from the working to the rest position is moved to the rest position.

According to a further embodiment of the invention, a separate second bolt part is mounted on the emptying device or on the collection container, the second bolt part carrying the first bolt part. This second barrier part can be fixed or movable. Depending on the design of the emptying device or the collecting container, it is also possible to provide two or more bolt parts between the movable bolt part and the emptying device or the collecting container. However, it is preferred that the second bolt part is mounted on a discharge device or a collection container.

In an embodiment with a fixed second bolt part, the movable bolt part is preferably rotatably mounted about a horizontal axis on the second bolt part. The front side of the second bolt panel is then formed to accommodate the operating elements in a rest position of the movable bolt panel. The movable bolt part can also be rotatable about a vertical axis.

According to a further embodiment of the invention, the second bolt part is provided with a cover into which the first movable bolt part is inserted when it is in a rest position. Preferably, the cover is formed of a tube arranged substantially in the horizontal direction into which the movable bolt piece can be inserted. The cover is designed in such a way that, depending on the arrangement of the operating elements on the movable part of the bolt, these operating elements are inaccessible at least in the rest position.

The second bolt part is preferably designed so that all points of the discharge device at which shear compression or injury can occur and which are laterally accessible substantially at the height of the operator's arms are covered. The second part of the bolt is formed as a side cover of the emptying device in the form of a plate, so that lateral interference with the emptying device is virtually impossible.

According to a further embodiment of the invention, the second bolt part is designed as a double-walled and at least partially designed as a cable guide for electric cables leading to the operating elements. Since in the area of the emptying device, cables and cables which are laid on the outside of the prior art solution and can therefore be damaged in order to control and actuate the servomotors, there is now a possibility of placing these components protected.

In order to protect the lateral part of the emptying device even better, a canvas can be arranged between the first movable barrier part and the second barrier part, which is tensioned in the locking position of the first movable barrier part.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the accompanying drawings, in which: FIG. 1a shows a side view of the security bolt in the locking position, FIG. 1b shows a plan view of the security bar of FIG. 1, FIG. 2 shows a side view of the safety barrier in a rest position, FIG. 3 shows a side view of a safety barrier with a second part which is designed as a side cover of the emptying device, FIG. 4 shows a side view of a safety barrier according to another embodiment in the locking position, FIG. 5 shows the safety bar of FIG. 4 in a rest position, FIG. 6 is a front view of the safety bar of FIG. 1, FIG. Fig. 7 is a side view of a safety barrier according to another embodiment of the invention; 8-10 safety barriers according to further embodiments, schematically and FIG. 11 is a plan view of the arrangement of FIG. 10th

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1a shows a rear part of a garbage vehicle with a collection container 1. On the rear side of the collection container 1 there is a hopper 2 provided with one or two discharge devices 3 arranged side by side. In the embodiment shown, the discharge device 3 can be seen as a lifting and tilting device, only the lower part with an abutment element 4 formed as a support plate.

In the central part, the drive pivot shaft 5 is shown. The other parts of the emptying device 3, which are located here in a quiet position, are covered by a second part 8 of the bolt 7 which simultaneously forms the side cover of the emptying device 3. of the emptying device 3 such that lateral interference into the emptying device 3 at least in the upper part is not possible.

At the front end of the second barrier part 8, the first movable barrier part 9 is rotatable about the axis 11. On the free end of the first movable barrier part 9, the operating elements 10 of the emptying device 3 are arranged on its upper side. elsewhere, for example at the axis of rotation 11.

In the region of the pivot axis 11, two switching elements 15a, 15b are provided, which are connected to the guide device 16 of the discharge device 3. The switching elements 15a,

SK 279752-6

15b are arranged inside the barrier parts 8 and 9, so that they are inaccessible from the outside without removing the first movable barrier part 9. The switching elements 15a, 15b are arranged so that they lie opposite each other and form a connection only when the first movable part 9 of the bolt 7 is in the locking position shown in FIG. Ia.

As shown in FIG. 1a and 1b, the first movable part 9 of the bolt 7 extends rearward at least so far that the working area 22 of the emptying device 3 with the garbage container gripped is laterally protected.

The safety bar 7 is shown in FIG. 2 shown in a quiet position. The first movable part 9 of the bolt 7 is arranged to be pivotable about a pivot axis 11 and can therefore be pivoted upwards for a quiet position. The operating elements 10 then lie against the front side 12 of the second part 8a of the bolt 7 and are no longer accessible. In order to avoid that the operating elements 10 are laterally accessible in the rest position of the first movable part 9 of the barrier 7, the front side 12 of the second part 8 of the barrier 7 can be provided with a recess 18 into which the operating elements 10 reach in the rest position. In this embodiment (see Figure 6), the operating elements 10 are completely covered in the rest position.

As shown in FIG. 1, the second part 8 of the bolt 7 is made as double-walled and serves at the same time as conducting the electric cables.

In FIG. 3 shows a further embodiment in which the fixed second barb part 8b is formed as a full lining and covering of the discharge device 3. The second barb part 8b is formed as a pentagonal plate arranged vertically and extending up to the top of the hopper 2.

The width of the second part 8b of the bolt 7 is chosen such that the entire emptying device 3 is laterally covered in its rest position. In the embodiment shown in FIG. 3, therefore, the half of the safety bar 7 is formed by a plate representing the second part 8b of the bar 7, while the other half, seen in the longitudinal direction of the collecting container 1, is formed by the first movable part 9 of the bar 7.

In FIG. 4 shows a further embodiment of the safety barrier 7. The first movable part 9 of the barrier 7 is displaceably arranged on the second part 8c of the barrier 7, which is provided with a cover 13 into which the first movable part 9 of the barrier 7 can be inserted. The cover 13 is formed by a hollow profile which is arranged on the underside of the second barrier part 8c formed as a cover 14. The length of the hollow profile is adjusted to the length of the first movable barrier part 9 so that the first movable barrier part 9 can be almost completely ( as shown in FIG. 5) inserted into the housing 13. In the rest position, the operating elements 10 are therefore completely covered by the cover 13.

Inside the housing 13, switching elements 15b and 15c are provided which cooperate both in the rest position and in the locking position with a switching element 15a arranged at the rear end of the first movable part 9 of the bolt 7. These switching elements 15a, 15b, 15c can interrupt the power supply. to the operating elements 10 or can supply a corresponding signal to a control device (not shown in Figs. 4 and 5) of the emptying device 3.

In FIG. 7 shows another embodiment having a canvas 17 between the second bolt part 8 and the first movable bolt part 9, which is tensioned in the locking position of the first bolt movable part 9.

In FIG. 8-10 show further embodiments of the safety barrier 7. In the embodiment of FIG.

between the second bolt part 8 and the emptying device 3, another bolt part 19 is provided fixed or movable. In FIG. 9 shows a safety bolt 7, in which further bolt portions 20a, 20b are arranged between the first movable bolt portion 9 and the second bolt portion 8, by providing the further bolt portions 20a, 20b, a safety bolt 7 can be formed. can also extend over the work area 22.

In a pivotable or pivotal arrangement, it is ensured by the appropriate positioning of the joints that all parts 8, 9, 19 of the bolt 7 can come out before the operating elements 10 are accessible.

If it is necessary to extend the safety barrier 7 beyond the working area 22, a further barrier part 21 can be arranged on the first movable part 9 of the barrier 7, which extends to the edge of the working area 22, as shown in FIG. 10 and 11.

PATENT CLAIMS

Claims (14)

A safety bolt of an emptying device for emptying garbage containers into a collection container, with at least one first and one second part, wherein at least the first bolt part is movable to a rest and locking position, characterized in that the total length of the parts (8) , 8a, 8b, 8c, 9) of the bolt (7) equals at least the depth of the working area (22) of the emptying device, all the operating elements (10) of the emptying device (3) being located on the first movable part (9) of the bolt (7) and in the rest position of the first movable part (9) of the bolt (7), the operating elements (10) of the emptying device (3) are covered by the second bolt part (8, 8a, 8b, 8c) of the bolt (7). Security bar according to claim 1 or 2, characterized in that the first movable part (9) forms the free end of the bar (7). Security bar according to claim 1 or 2, characterized in that the operating elements (10) are arranged at the free end of the first movable part (9) of the bar (7). Security bar according to one of claims 1 to 3, characterized in that it comprises at least one concealed switching element (15a, 15b, 15c). Security bar according to claim 4, characterized in that the switching element (15a, 15b, 15c) is arranged between the power source and the operating elements (10) and has a leakage and interruption position, the interruption position being taken in the rest position of the first the part (9) of the bolt (7). Security bar according to one of claims 4 or 5, characterized in that the switching element (15a, 15b, 15c) is connected to the control device (16) of the emptying device (3). Security bar according to one of Claims 1 to 6, characterized in that the first movable part (9) of the barrier (7) is arranged on the emptying device (3) or on the collection container (1) and that the second part (8a), 8b, 8c) the bolt (7) is an integral part of the emptying device (3) or the collecting container (1). Security bar according to one of Claims 1 to 6, characterized in that the second part (8a, 8b, 8c) of the bar (7) is fixedly fixed on the emptying device (3) or on the collection container (1) and carries the first movable the part (9) of the bolt (7). SK 279752-6 Security bar according to one of claims 1 to 9 8, characterized in that the first movable part (9) of the bolt (7) is mounted on the second part (8a, 8b, 8c) of the bolt (7) rotatable about a horizontal pivot axis (11) and that the front side (12) of the second part (8a, 8b, 8c) of the bolt (7) has a recess for accommodating the operating elements (10) in the rest position of the first movable bolt (9) movable part (7); Security bar according to one of claims 1 to 10 9, characterized in that the second part (8a, 8b, 8c) of the bolt (7) comprises a cover (13) into which the first bolt part (9), movable from a working position to a rest position, is retractable position. Security bar according to claim 10, characterized in that the cover (13) is formed by a hollow profile into which the first movable part (9) of the bar (7) can be pushed at least so far that the operating elements (10) are at rest inaccessible. Security bar according to one of Claims 1 to 12 11, characterized in that the second part (8, 8a, 8b, 8c) of the bolt (7) is designed as a side cover of the emptying device (3). Security bar according to one of claims 1 to 13 12, characterized in that the second part (8, 8a, 8b, 8c) of the bolt (7) is designed as double-walled and at least partially forms a cable guide. Security bar according to one of claims 1 to 14 13, characterized in that a canvas (17) is fixed between the first movable part (9) of the bolt (7) and the second part (8, 8a, 8b, 8c) of the bolt (7), which is in the locking position of the first movable part ( 9) latches (7) tensioned.