EP3513112A1

EP3513112A1 - Safety assembly for a storage system, and storage system

Info

Publication number: EP3513112A1
Application number: EP17755184.3A
Authority: EP
Inventors: Jürgen Schnatterer; Norbert Bouche; Harald Preschke
Original assignee: Kardex Produktion Deutschland GmbH
Current assignee: Kardex Produktion Deutschland GmbH
Priority date: 2016-09-16
Filing date: 2017-08-22
Publication date: 2019-07-24
Also published as: CN109716010A; WO2018050403A1; US20190264870A1; DE102016217786A1; US10781972B2

Abstract

The invention relates to a safety assembly (1) for a storage system (2), in particular a storage carousel system, comprising at least one tarp (3) and one fastening device (4) for fastening the tarp (3), wherein the tarp (3) separates a hazard region (5) on one side (6) of the tarp from a working region (7) on the other side (8) of the tarp, and one hazard detector (9), which is associated with the hazard region (5) and which detects the ingress of an object (10) into the hazard region (5) and outputs an alarm signal. The invention further relates to a storage system (2).

Description

Safety assembly for a storage system and storage system

The invention relates to a safety assembly for a storage system and a storage system. The storage system may in particular be a circulation storage rack system, especially a horizontal circulation storage rack system.

In such a storage system, there is often a risk to a user or operator when moving, for example, parts of the storage system. The user may be injured by such moving parts. In particular, there is a risk that the user will pinch body parts. Often it is not possible due to the structural conditions, elements that can control access, such as automatic doors to install.

The object of the invention is to provide a solution in which a risk to a user is minimized even under difficult constructional conditions.

According to the invention this is achieved by a safety assembly for a storage system, in particular a circulation storage rack system comprising at least one tarpaulin and a fastening device for securing the tarpaulin, wherein the tarpaulin delimits a danger area on one side of a work area on its other side, and one associated with the hazard area Hazard detector, which detects an intrusion of an object into the hazardous area and outputs an alarm signal.

A storage system according to the invention comprises a safety assembly according to the invention.

The tarpaulin serves to delimit or shield a hazardous area from the working area. It is therefore not possible for a user to get through the tarpaulin into the hazardous area. Unlike rigid shielding such as a sheet, a user is not injured because of the flexibility of the tarpaulin even if, for example, one hand accidentally touches a moving part and the hand is caught between the moving part and the tarpaulin , However, the hazard detector detects the intrusion into the hazardous area and outputs a signal. Such an alarm signal can be used, for example, to stop a storage system and prevent further danger. Another advantage is that a tarpaulin can also be cheaper and requires less maintenance than a fixed barrier.

In a corresponding procedure, the hazard detector monitors the hazardous area and outputs the alarm signal when the object enters the hazardous area. Alternatively or additionally, the alarm signal can be output if supernatant or Falling out storage goods penetrate into the hazardous area and thus endanger the user or the storage system.

The solution according to the invention can be further improved with the following advantageous developments and further developments.

The tarpaulin may be convertible from an initial state to a hazardous state in which the tarpaulin is deformed relative to the initial state, and the hazard detector may be in operative connection with the tarpaulin and detect the hazardous state of the tarpaulin. For example, the initial state may be a state the plane is just stretched or in which the tarpaulin hangs loose. If the user deforms the tarpaulin, for example by entering the danger zone laterally or from a working area, this is detected by the hazard detector, i. detected or registered, so that it outputs an alarm signal.

In order to allow the simplest possible construction, the hazard detector in the initial state and / or in the state of danger can touch the tarpaulin.

In an advantageous embodiment, the hazard detector may be directed to the hazardous area to allow easy monitoring.

For a simple and particularly sensitive detection of the hazard detector may have a non-contact sensor.

The hazard detector can include an optical monitoring system with which, for example, movements in the hazardous area are detected. This can allow a particularly simple and safe monitoring.

The hazard detector may include a light barrier. This can allow a good delineation of the hazardous area from the work area and at the same time increase the detection reliability.

A light barrier may include, for example, a light emitter, a light receiver, a laser, a diode, or the like. In particular, the light barrier may be interrupted in the alarm state.

In an alternative embodiment, the hazard detector may comprise a cable and / or a limit switch. In such a more mechanical solution, for example, a higher reliability can be achieved. For example, the rope may run parallel to the tarpaulin to allow for a compact design. For example, it can run directly behind or beside the tarpaulin to make detection easy and to provide high system sensitivity. The rope or the limit switch can be deflected in the hazardous state. A rope can run straight about in the initial state and have an odd course in the state of danger. Such an embodiment can be structurally simple to implement. In order to transmit movements, mechanical transmission elements may be present.

The safety assembly or the storage system may include tensioning means for the tarpaulin. By clamping unwanted movements of the tarpaulin can be avoided. Clamping means may include springs, rubber-elastic elements or pulleys.

Alternatively, the tarpaulin may be suspended, for example by attachment to a single side. Such a configuration can, for example, make access to the hazardous area particularly easy if, for example, the storage system is deactivated for maintenance purposes.

The storage system may further comprise a removal opening for removal of the stored goods, wherein the tarpaulin is arranged adjacent to the removal opening. The arrangement next to the removal opening contributes particularly to the increase in safety, since in this area there is an increased risk that the user gets into the danger area when removing. The removal opening can also serve not only for removal, but also for filling the storage system. In addition to this may mean, in particular, left and / or right next to the removal opening, wherein left and right are related to a user. It is advantageous if the tarpaulin is arranged in or against a direction of movement of the storage system next to the removal opening, since in this area there is the greatest danger to a user.

Alternatively or additionally, the tarpaulin can also be arranged above or below the removal opening in order to provide protection in this area as well.

The tarpaulin may be disposed adjacent the discharge opening to provide a fast response time.

One or more tarpaulins may have a pass-through area for operation. For example, a tarpaulin may have a penetration area limited in two dimensions. This can be configured, for example, rectangular or circular. Several plans can have individual cutouts, which together form a Durchgriffsbereich or a removal opening.

In an advantageous embodiment, the storage system has a breaker system that stops a drive of the storage system in response to an alarm signal. This increases safety. Alternatively or additionally, the safety module or the storage system can emit an optical or acoustic signal when the hazardous detector emits an alarm signal.

The removal opening may be bounded on at least two sides by one or more tarpaulins. The tarpaulin or tarpaulins may at least partially form or delimit the removal opening. On further elements for the formation of the removal opening can be omitted.

The hazard detector can be arranged on the side facing the bearing. As a result, a compact design is possible that does not bother the user in the work area.

The storage system can be higher than the gripping area of an operator. The solution according to the invention is particularly advantageous in such systems, since aids such as stairs or platforms often do not allow the attachment of access systems such as automatic doors in such cases. The attachment of a tarpaulin is possible because it is much thinner. In particular, the storage system can be multi-storey.

The storage system may have a staircase adjacent to the tarpaulin or a pedestal adjacent to the tarpaulin. The solution of the invention allows a particularly space-saving design and thereby ergonomic work on the storage system.

In the following, the invention will be explained in more detail by way of example with reference to advantageous embodiments with reference to the drawings. The illustrated advantageous developments and refinements are each independent of each other and can be combined with each other, depending on how this is necessary in the application.

Show it:

Fig. 1 is a schematic plan view of an embodiment of the solution according to the invention;

Fig. 2 is a schematic plan view of an embodiment of the solution according to the invention; Fig. 3 is a schematic perspective view of the embodiment of Fig. 1;

Fig. 4 is a detail view of the embodiment of Fig. 3;

5 shows the detailed view from FIG. 4 in a state of danger of the tarpaulin;

Fig. 6 is a schematic perspective view of another embodiment;

Fig. 7 is a schematic perspective view of another embodiment;

FIG. 8 shows a schematic perspective view of the further embodiment from FIG. 7 in a hazardous state; FIG.

9 shows a further embodiment in a schematic plan view; and

10 shows a further embodiment in a schematic plan view.

FIGS. 1 to 3 show a storage system 2 with a safety assembly 1. It is a circulation storage rack system 2A, in particular a horizontal circulation storage rack system. Several storage goods carrier 18 for storage of stored goods 19 to run horizontally. A user or operator can take 20 stored goods at removal openings. In this case, a controller 55 controls the circulation and drives in each case the appropriate storage product carrier 18, on which a desired stored goods 19 is arranged, to a removal opening 20. The user can then remove from one or more removal openings 20 stored goods 19 and put together, for example, an order.

The storage system 2 comprises a work area 7, in which, for example, a user is staying, and a danger area 5 with a plurality of storage arrangements 80, which is dangerous for the user due to the moving load-carriers 18. If objects or parts of the body of the user reach the danger zone 5, there is a risk that they will be trapped. In order to prevent this, the storage system 2 has in some places walls 40 which are made stable and thus prevent access to the moving parts of the storage system 2. In some other places, the attachment of such fairly thick and voluminous walls 40 is not possible because, for example, stairs 25 or pedestals 26 are to be installed in order to easily reach higher storage goods 19 while keeping the work as ergonomic as possible for the user ,

The storage system 2 therefore has tarpaulins 3, which are clamped vertically by means of fastening devices 4, such as springs 4A. They separate the hazard area 5 on their own NEN side 6 from the work area 7 on its other side 8 from. The springs 4A act simultaneously as a clamping means 27, tighten the tarpaulins 6.

The storage system 2 further has a hazard detector 9, which is associated with the hazard area 5 and detects intrusion of an object 10 or a body part of the user in the hazard area 5 and then outputs an alarm signal. Such an alarm signal can for example be further processed in the controller 55 and serve to stop a drive of the storage system 2. Thereafter, a further risk to the user or a movement of the storage system 2 can be avoided. The controller 55 may for this purpose have a breaker system 21 (not shown in detail) in which the alarm signal can be recorded and a drive can be stopped. In particular, an optical or acoustic warning signal can also be output.

FIGS. 4 to 10 show various embodiments of hazard detectors 9.

In the embodiment according to FIGS. 4 and 5, a light beam 29, for example a laser beam, is generated by the hazard detector 9. The hazard detector 9 is thus a light barrier 15, which detects when the light beam 29 is interrupted. If, for example, a user's hand 30 enters the danger zone 5, the light beam 29 is interrupted. At the same time, the tarpaulin 3 deforms in a gentle way, so that the hand 30 is indeed clamped between the load-carrier 18 and the tarpaulin 9 3, but not injured.

The light beam 29 runs directly behind the tarpaulin 3 and next to the removal opening, which is at least partially formed by the tarpaulins 3. If, for example, the tarpaulin is not deflected laterally, as can be seen in FIG. 5, but toward the danger zone 5, the hazard detector 9 nevertheless triggers an alarm signal. This also further injuries or damage can be prevented. This danger detector 9 comprises a non-contact sensor 13. It comprises in particular an optical monitoring system 14 in the form of the light barrier 15. Like the other hazard detectors 9 shown, this hazard detector 9 can also comprise further elements.

6, a further embodiment is shown. In this embodiment, the hazard detector 9 has a mechanical detection system. Instead of the light beam 29, a rope 16 is used, which is stretched directly next to the removal opening behind the tarpaulin 9 in the hazard area 5. Device the user with his hand 30 now to the rope, for example, because he hooked on the goods carrier 18, the hazard detector triggers 9 and outputs an alarm signal. The hazard detector 9 may include a limit switch 17, which detects the train on the rope 16. The cable 16 may rest against the tarpaulin 3 in an initial state 11 and / or in a hazardous state 12.

FIGS. 7 and 8 show a further embodiment. This is again a hazard detector 9, which can detect a mechanical deflection. He is attached via a short rope 16 at a corner of the tarpaulin 3. If this is deformed from the initial state 11 in FIG. 7 into the hazardous state 12 in FIG. 8, for example because an object 10 has reached the danger zone 5, the cable 16 is pulled out of the hazard detector 9 and the hazard detector 9 triggers the alarm state. The ropes 9 act here as a clamping means 27th

In Fig. 9, another embodiment is shown. The hazard detector 9 is in this case a motion detector whose detection area 95 is directed to the danger area and covers the danger area 5. The detection area 95 is delimited by a plane spanned by the tarpaulins 3.

In Fig. 10, another embodiment is shown. The hazard detector 9 is formed by a camera 96. The camera 96 may be located at various locations. It monitors the danger zone 5. Detecting or detecting whether an object 10 or a body part penetrates into the danger zone 5 can be determined, for example, by image evaluation by means of software. There may also be more than one camera 96, for example to increase the detection range 95 or to allow a more accurate evaluation.

As an alternative to the illustration shown, the hazard detector 9 can comprise not just a single light beam 29, but several. These can in particular form a grid of light beams 29 that spans a plane behind the tarpaulin 9. There may also be several hazard detectors 9.

The figures also show display and control panels 28 at which the user can make inputs and / or at which the user receives information, for example on the current orders. reference numeral

safety assembly

storage system

A circulation storage rack system

Plans

Fastening device

A spring

danger area

a page

Workspace

other side

threat detector

0 object

1 initial state

2 hazardous condition

3 non-contact sensor

4 optical monitoring system

5 photocell

6 rope

7 limit switches

8 goods carriers

9 stored goods

0 removal opening

1 breaker system

2 drive

3 side facing the bearing

4 gripping area of an operator

5 stairs

6 podium

7 clamping devices

8 Display and control panel

9 light beam

0 hand

0 wall

0 storage system Control Bearing arrangement Detection range Camera

Claims

claims

1. Safety assembly (1) for a storage system (2), in particular a circulation storage rack system, comprising at least one tarpaulin (3) and a fastening device (4) for securing the tarpaulin (3), wherein the tarpaulin (3) a hazard area (5) its one side (6) of a work area (7) on its other side (8) demarcates, and the danger zone (5) associated hazard detector (9), the penetration of an object (10) in the danger zone (5) detected and emits an alarm signal.

2. Safety assembly (1) according to claim 1, wherein the tarpaulin (3) can be converted from an initial state (11) into a hazardous state (12) in which the tarpaulin (3) is deformed relative to the initial state (11), and the hazard detector (9) is in operative connection with the tarpaulin (3) and detects the hazardous state (12) of the tarpaulin (3).

3. Safety assembly (1) according to claim 1 or 2, wherein the hazard detector (9) in the initial state (11) and / or in the state of danger (12) touches the tarpaulin (3).

4. Safety assembly (1) according to one of claims 1 to 3, wherein the hazard detector (9) comprises a non-contact sensor (13).

5. Safety assembly (1) according to one of claims 1 to 4, wherein the hazard detector (9) comprises an optical monitoring system (40).

6. Safety assembly (1) according to one of claims 1 to 5, wherein the hazard detector (9) comprises a light barrier (15).

7. Safety assembly (1) according to one of claims 1 to 6, wherein the hazard detector (9) comprises a cable (16) and / or a limit switch (17).

8. Storage system (2), in particular circulation storage system (2A) for storage goods carriers (18) stored storage product (19), comprising at least one safety assembly (1) according to one of claims 1 to 7, wherein the hazardous area (5) between the tarpaulin (3 ) and a bearing assembly (80) is arranged.

9. Storage system (2) according to claim 8, the storage system (2) further comprising at least one removal opening (20) for removal of the storage product (19), wherein the tarpaulin (3) next to the removal opening (20) is arranged.

10. Storage system (2) according to claim 8 or 9, wherein the storage system (2) comprises a breaker system (21) which stops a drive of the storage system (2) in response to an alarm signal.

11. Storage system (2) according to one of claims 8 to 10, wherein the hazard detector (9) on a bearing arrangement (80) facing side is arranged.

12. storage system (2) one claims 8 to 11, wherein the storage system (2) is higher than the gripping area (24) of an operator.

13. Storage system (2) according to one of claims 8 to 12, wherein the storage system (2) has a to the tarpaulin (3) adjacent stairs (25) or adjacent to the tarpaulin (26).

14. Storage system (2) according to one of claims 8 to 13, wherein the removal opening (20) on at least two sides of tarpaulins (3) is limited.

15. Storage system (2) according to one of claims 8 to 14, wherein at least one tarpaulin (3) forms or limits at least part of the removal opening (20).