DE102017122574B4 - Apparatus for detecting a portable device, devices, furniture and method for controlling the device - Google Patents

Abstract

Device for detecting (10) a portable device, in devices, furniture, which are movably mounted on rollers (11), consisting of a plurality of the device distributed on the bottom side arranged movable punch (15), each stamp is provided with an electric motor, in that all the electric motors have a common control unit and that the punches (15) have a device for detecting ground clearance, characterized in that the device for detecting the ground clearance is formed from a contact component (30) arranged at the bottom on the punch (15), which has a bottom contact surface (31 ) and an at least partially protruding from the stamp base side contact surface (32).

Description

The invention relates first to a device for detecting a portable device, devices, furniture, which are movably mounted on rollers, consisting of a plurality of the device distributed on the bottom side arranged movable punch, each stamp is provided with an electric motor that all electric motors have common control unit and that the stamp have a device for ground clearance detection

Such a device is for example from the EP 1 645 257 B1 in the form of a bed, in particular a hospital or nursing bed known. Herein, a separate from the roller braking device is disclosed with punch-shaped pressure elements. In this brake according to the invention is not acted directly on the roles, ie the roles of the bed are not blocked by the brake. Nor is the position of the rollers changed relative to the bed or the footprint. This means that the bed will not be raised or placed on feet. Rather, the brake according to the invention acts so that it presses the pressure elements against the ground and with such a force which is sufficient to prevent free rolling of the bed and on the other hand causes no lifting of the bed or a mattress frame of the bed. Also, the rollers remain in permanent contact with the footprint of the bed.

In the DE 10 2010 016 155 A1 and the DE 43 21 739 A1 each roller body are disclosed with an arranged stamp, wherein the punch is used to determine the role of a bottom surface.

In the US 2017/0101118 A1 a device is disclosed which discloses a roller assembly with stabilizing leg arranged. The stabilizing leg has a ground clearance detection device, which is initiated upon contact with a foot of the stabilizing leg.

The object of the invention is therefore to provide a device which is simpler to set up and operate even with the simultaneous use of multiple punches to detect a portable device.

The solution of the problem results from the features of the following claim 1:

Apparatus for detecting a portable device, in devices, furniture, which are movably mounted on rollers, consisting of a plurality of the device distributed on the bottom side arranged movable punch, each stamp is provided with an electric motor, that all electric motors have a common control unit and that the stamp have a device for detecting ground clearance, characterized in that the device for detecting the ground clearance is formed from a contact component arranged at the bottom on the stamp, which has a bottom contact surface and a contact surface projecting at least partially from the stamp bottom side.

The device according to the invention makes it possible for an operator to clamp in a very simple way together all movable punches on the ground.

In addition, the structure of the device is significantly simplified due to the electric motor drive.

Ultimately, the device according to the invention with stamps, which are provided with a device for ground clearance detection, the multiple stamp simultaneously and with a relatively high deployment speed direction footprint to move, with the device for detecting ground clearance just above the bottom of each stamp - even with uneven floors - on schedule is stopped. This means that then there is the possibility that each stamp performs the last millimeter to the bracing individually, the total time of the detection process is still relatively low, while significantly lower maximum power consumption. The strain of each stamp successively avoids namely advantageously a large maximum power consumption (peak current), which result in sensitive, highly technical, mobile medical devices in the network adverse voltage fluctuations.

The ground clearance detection devices may be electrical sensors, such as e.g. capacitive proximity sensors or mechanical devices such as contact / switching springs act.

With the aid of the device according to the invention, it is possible in a very simple manner to generate a switch-off signal before tightening the stamp with the bottom contact surface. This happens because in the Vorkontaktierung of the soil through the contact surface, the current consumption of the electric motor increases slightly, this slight increase in power consumption is also the signal for the completion of the extension of the punch. This process takes place in parallel in all preferably four punches, which are arranged under a movable device. Shortly after completion of this process then the individual stamps with one after the other clamped to the ground, with only a small period is necessary for each individual stamp, since the rest-Stempelweg is only about 3 mm to the bracing of the stamp on the bottom surface.

Advantageously, at least the contact surface may be formed of a soft material, so that the increase in current when contacting between contact surface and bottom surface is very low.

In a likewise advantageous manner, the contact surface of the contact member may be formed as a convex, dome-shaped surface.

In a particularly preferred embodiment, the contact component is arranged in a clamping manner in a base-side open die profile. This embodiment has advantages not only in terms of low manufacturing, but also in terms of low installation costs.

In principle, it is also possible that the device has a built-in weight sensor that detects a discharge of a device, furniture or bedside.

In this embodiment, it is advantageously possible that after the detected by the weight sensor subsequent discharge, which can lead to the repeal of the tension of the stamp on the ground, a renewed distortion of the stamp can be made on the ground.

Furthermore, the invention also relates to a stamp for a device for detecting a portable device, devices, furniture.

• Stempel für eine Vorrichtung zur Feststellung einer ortsbeweglichen Einrichtung bei Geräten, Möbeln, , wobei der Stempel eine Einrichtung zur Bodenabstandserkennung aufweist, dadurch gekennzeichnet, dass die Einrichtung zur Bodenabstandserkennung aus einem bodenseitig am Stempel jeweils angeordneten Kontaktbauteil gebildet wird, das eine Bodenanlagefläche und eine zumindest teilweise aus der Stempelbodenseite vorragende Kontaktfläche aufweist.

With respect to the above-mentioned object, the solution results from the following claim 6:

• Stamp for a device for detecting a portable device in appliances, furniture, wherein the stamp has a device for detecting ground clearance, characterized in that the means for detecting ground clearance from a bottom side of the stamp respectively arranged contact member is formed, which is a Bodenanlagefläche and at least partially has from the stamp base side projecting contact surface.

The stamps according to the invention have the abovementioned advantages.

In addition, the invention also relates to a method for controlling a device for detecting a portable device, devices, furniture, which are movably mounted on rollers, consisting of a plurality of the device distributed on the bottom side arranged vertically each by means of an electric motor and a common control unit movable punch with the following steps.

• Verfahren zur Steuerung einer Vorrichtung zur Feststellung einer ortsbeweglichen Einrichtung, bei Geräten, Möbeln, die auf Rollen fahrbar gelagert sind, bestehend aus einer Mehrzahl an der Einrichtung bodenseitig verteilt angeordneter, vertikal jeweils mittels einem Elektromotor und einer gemeinsamen Steuerungseinheit verfahrbarer Stempel mit folgenden Verfahrensschritten:
  • - alle Stempel werden gleichzeitig in Bodenrichtung ausgefahren (Weg-/Hubphase)
  • - Kurzzeitiges Abstoppen jedes Stempels nach Kontaktierung von Kontaktfläche und Boden
  • - Verspannen (Andrücken) jedes einzelnen Stempels am Boden nacheinander (Kraft-/Hubphase)

With reference to the object set out above, the solution results from the following method claim 7:

• Method for controlling a device for detecting a portable device, in devices, furniture, which are movably mounted on rollers, consisting of a plurality of the device distributed on the bottom side arranged vertically by a respective electric motor and a common control unit movable punch with the following steps:
  • - all punches are simultaneously extended in the direction of the ground (travel / lifting phase)
  • - Temporary stopping of each stamp after contacting the contact surface and ground
  • - clamping (pressing) of each stamp on the ground in succession (force / lifting phase)

The advantages of the method according to the invention consist in particular of the low maximum power consumption with a simultaneously low overall time of the detection process.

Finally, the invention also relates to a method for controlling a device for braking or detection of a movable device, devices, furniture, which are arranged on rollers slidably mounted on a floor, consisting of a plurality of the device distributed on the bottom side arranged vertically, respectively by means of an electric motor and a common control unit movable punch with the following steps.

• Verfahren zur Steuerung einer Vorrichtung zur Bremsung bzw. Feststellung einer ortsbeweglichen Einrichtung, bei Geräten, Möbeln, die auf Rollen verschiebbar auf einem Boden angeordnet ist, bestehend aus einer Mehrzahl an der Einrichtung bodenseitig verteilt angeordneter, vertikal jeweils mittels einem Elektromotor und einer gemeinsamen Steuerungseinheit verfahrbarer Stempel mit folgenden Verfahrensschritten:
  • - alle Stempel werden gleichzeitig in Bodenrichtung ausgefahren (Weg-/Hubphase)
  • - Kurzzeitiges Abstoppen jedes Stempels kurz vor der Kontaktierung des Bodens
  • - Verspannen (Andrücken) jedes einzelnen Stempels am Boden nacheinander (Kraft-/Hubphase)

With reference to the object set out above, the solution results from the subsequent method claim 8th :

• Method for controlling a device for braking or detecting a movable device, in devices, furniture, which is arranged on rollers displaceably on a floor, consisting of a plurality of the device distributed on the bottom side arranged, vertically movable in each case by means of an electric motor and a common control unit Stamp with the following process steps:
  • - all punches are simultaneously extended in the direction of the ground (travel / lifting phase)
  • - Temporary stop each stamp just before contacting the soil
  • - clamping (pressing) of each stamp on the ground in succession (force / lifting phase)

The advantages of this method according to the invention correspond to those of the aforementioned method, wherein this method works without contact, for example by using an electronic distance sensor.

• 1 Eine perspektivische Ansicht eines auf Rollen ortsbeweglich angeordnetes Medizingerät,
• 2 eine Unteransicht des Medizingerätes gemäß 1,
• 3 eine Teilschnittdarstellung gemäß Schnittlinie III/III in 2,
• 4 ein schematisches Schema einer Vorrichtung zur Feststellung einer ortsbeweglichen Einrichtung,
• 5 Darstellung verschiedener Stellungen eines Stempels und
• 6 Graphische Darstellung der Stromaufnahme pro Zeiteinheit.

Further advantages of the invention will become apparent from the following description of an embodiment. Show it:

• 1 A perspective view of a movably arranged on rollers medical device,
• 2 a bottom view of the medical device according to 1 .
• 3 a partial sectional view according to section line III / III in 2 .
• 4 a schematic diagram of a device for detecting a portable device,
• 5 Representation of various positions of a stamp and
• 6 Graphical representation of the current consumption per unit of time.

In the drawings, a device for detecting a portable device is indicated generally by the reference numeral 10 designated (s. 4 ).

One on rollers 11 movably arranged medical device 12 with a control panel 13 and a monitor 14 show the 1 , In addition, partially extendable stamp 15 the device 10 to establish a portable device 10 to recognize.

From the 2 and 3 is evident that always next to a roll 11 at a bottom 16 of the medical device 12 each stamp 15 is arranged, each stamp 15 via data lines 17 with a central unit 18 connected is.

In the 4 is simplified the structure of a device 10 to identify a portable device. Such a device 10 has on the one hand a control unit 19 and a power supply 20 on, which both with the central unit 18 via lines 21 are connected. The central unit 18 is with a connection terminal 22 provided via data lines 17 with stamp 15 connected is.

The device 10 is made up of the central unit 18 with up to four stamps 15 together (s. 4 ), the control unit 19 in a manner not shown consists of a simple button and several LEDs.

In the device 10 It is an electrically operated system, which serves mobile devices 12 sure to determine. This will be a maximum of four on the medical device 12 attached stamps 15 with a defined force on the ground 23 (please refer 5 ) hazards. The contact pressure with which they ground 23 Touch is for every stamp 15 individually in 16 Adjustable levels. When the set force is reached, the punch switches 15 from. The final position of the stamp 15 So it's not off, but power dependent. The device 12 is not raised, the braking effect is due to the pressure of the punch 15 on the ground 23 sufficiently given. As a result, the stability remains unchanged and the device 10 Can work reliably even on uneven ground. The adjustment of the contact pressure must ultimately be such that the device in question 12 not raised when empty.

In the 5a - 5c is one of the stamps 15 presented in different positions in detail. The Stamp 15 consists of a designed as an aluminum profile housing 24 which is on the outside surface 25 in a manner not shown with T-slots for easy attachment of the punch 15 on the construction of a medical device 12 is provided. At the top is the case 24 with a lid 26 provided, from which a data line 17 is led out. In the upper part of the case 24 is a geared motor 27 arranged, which is a threaded spindle 28 that drives with a printing stamp 29 is connected to movement. In the interior of the stamp 29 is a contact component 30 made of plastic clamped, which has a bottom contact surface 31 and a convex dome-shaped contact surface 32 having.

In the 5 (left illustration) is the raised position of the punch 15 to recognize, this was by the geared motor 27 and threaded spindle 28 the plunger 29 including the contact component 30 moved to the highest position.

After entering a command to detect the device 10 the plunger moves 29 with the contact component 30 in the x direction until the convex contact surface 32 the ground 23 touched. While first before contacting the contact surface 32 on the ground 23 the geared motor 27 the plunger 29 including contact component 30 can move without any resistance in the x-direction, results at the time of contacting the contact surface 32 with the ground 23 a small increase in resistance to the greater power consumption of the geared motor 27 leads ( 5 , middle illustration). This is the signal to turn off the geared motor 27 , whereby the load-bearing plunger 32 at a distance of a few mm, preferably 3 mm, above the ground 23 stops. Once all four stamps 15 this position just above the ground surface 23 have achieved, is via the control of the central processing unit 18 gradually every single stamp 15 on the ground 23 braced. This state of tension is in the 5 (right illustration). It can be seen that the convex contact surface 32 in the cavity of the plunger 29 is pressed and large on the ground 23 is applied.

Ultimately, the shows 6 the motor current consumption in amps of a geared motor 27 plotted on the time axis in seconds.

One recognizes in combination with the representations in 5 that is first a stamp 15 in the x-direction about 2.25 seconds towards the ground 23 moved, at the end of this so-called travel / lifting phase 33 finds a contact between the ground 23 and the contact surface 32 instead, causing the small current spike 34 results. Due to the current peak 34 becomes the geared motor 27 issued, so that the current consumption in the area 35 briefly drops to zero. After that, in the area 36 the so-called force / lifting phase of the plunger 29 as far as the ground 23 drove as it is possible and the plunger 29 on the ground 23 braced. This process results in a significantly higher current peak 37 ,

LIST OF REFERENCE NUMBERS

10

Device for detection

11

roll

12

medical device

13

Control panel

14

monitor

15

stamp

16

Lower surface of 12

17

data lines

18

central processing unit

19

operating unit

20

power supply

21

data lines

22

Connection terminal for stamp 15

23

ground

24

casing

25

Surface of the housing

26

cover

27

gearmotor

28

screw

29

plunger

30

contact component

31

Ground contact surface

32

contact area

33

Displacement / stroke phase

34

small current peak

35

Range with current consumption 0

36

Force / stroke phase

37

higher current peak

Claims (8)

Device for detecting (10) a portable device, in devices, furniture, which are movably mounted on rollers (11), consisting of a plurality of the device distributed on the bottom side arranged movable punch (15), each stamp is provided with an electric motor, in that all the electric motors have a common control unit and that the punches (15) have a device for detecting ground clearance, characterized in that the device for detecting the ground clearance is formed from a contact component (30) arranged at the bottom on the punch (15), which has a bottom contact surface (31 ) and an at least partially protruding from the stamp base side contact surface (32). Device (10) according to Claim 1 , characterized in that at least the contact surface (32) is formed of a soft material. Device (10) according to Claim 1 or 2 , characterized in that the contact surface (32) of the contact member (30) is formed as a convex, dome-shaped surface. Device (10) according to one of Claims 1 to 3 , characterized in that the contact component (30) is arranged in a clamping manner in a bottom open punch profile. Device (10) according to one of the preceding claims, characterized in that the device (10) has a built-in weight sensor which recognizes a discharge of a device, furniture, hospital bed. A stamp (15) for a device for detecting (10) a portable device, the stamp (15) having means for detecting ground clearance, in devices, furniture, characterized in that and the means for detecting ground clearance from a bottom side on the punch (15) in each case arranged contact component (30) is formed, which has a bottom contact surface (31) and an at least partially protruding from the stamp bottom side contact surface (32). Method for controlling a device for detecting a portable device, in devices, furniture, which are movably mounted on rollers, consisting of a plurality of the device distributed on the bottom side arranged vertically by a respective electric motor and a common control unit movable punch with the following steps: - all punches are simultaneously extended in the direction of the ground (travel / lifting phase) - Temporary stopping of each stamp after contacting the contact surface and ground - clamping (pressing) of each stamp on the ground in succession (force / lifting phase) Method for controlling a device for braking or detecting a movable device, in devices, furniture, which is arranged on rollers displaceably on a floor, consisting of a plurality of the device distributed on the bottom side arranged, vertically movable in each case by means of an electric motor and a common control unit Stamp with the following process steps: - all punches are simultaneously extended in the direction of the ground (travel / lifting phase) - Temporary stop each stamp just before contacting the soil - clamping (pressing) of each stamp on the ground in succession (force / lifting phase)

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