Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D23/00—General constructional features
  • F25D23/02—Doors; Covers
  • F25D23/021—Sliding doors
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
  • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
  • E06B9/58—Guiding devices
  • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
  • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
  • E06B9/58—Guiding devices
  • E06B2009/585—Emergency release to prevent damage of shutter or guiding device

Definitions

• the invention relates to a device for guiding machine elements along a guideway, in particular a rail, chain or rope.
• Such a device is known for example from DE 196 25 215 AI, which relates to a high-speed door for deep-freeze houses.
• the known roller door has a flexible door leaf for closing building openings in cold stores, the door leaf being guided laterally in m guides. With such a gate, vehicles may pass through before the gate is fully opened. Greater damage to the door and to the vehicle can be avoided if the door has flexible guide elements that release the door in the event of a side impact.
• laterally resilient guide elements on the lower crossbeam which yield when a force is exceeded.
• a disadvantage of resilient guide elements is that the spring travel is limited. With particularly strong deflections, irreversible damage to the gate occurs.
• the object of the invention is to provide a device for guiding machine elements which, with a simple structure, offers reliable protection against overload and can be easily reset to the initial state after an overload case.
• a locking element is provided, which is arranged between the machine element and a guide element engaging in the guideway, the locking element or elements engaging in a form-fitting manner in recesses on the machine element.
• the arrangement according to the invention is characterized in that it requires only a few components, is simple in construction and requires only a small installation space.
• the invention ensures that the components are safely separated, while it provides high resistance to continuous loading, for example as a result of wind pressure on the door leaf. After disengaging, the snap connection can be snapped back in a few simple steps. With a corresponding design, the force required for disengagement can be predetermined and adapted to the requirements.
• the invention allows a variety of embodiments, depending on the type of machine element and guide element.
• Locking connection are provided and a clamp, screw, rubber element or spring is provided which pulls the legs together or presses them apart with a predetermined force.
• the pressure force which also determines the force required for disengagement, can be preselected in a simple manner by choosing an appropriate spring or clamp or by tightening the screw to a greater or lesser extent. In particular in the embodiment with screw, this can be used for Restoring the initial state can be solved to enable easier engagement of the holder on the machine element. Then the screw is tightened again until the desired contact pressure is reached.
• two latching elements are provided at the ends of two legs of a V-shaped holder of the latching connection and a spring joint is provided at the connection point of the legs, which pulls the legs together or presses them apart with a predetermined force.
• This embodiment is particularly simple since the two legs and the spring joint can be designed as a prefabricated structural unit which can be assembled in a few simple steps.
• the legs are designed as sheet metal parts and the locking elements as angled ends of the legs.
• the invention can be further improved by the measure that a microswitch connected to a motor control is provided in a recess of the machine element or of the guide element intended for receiving the latching elements, in order to stop a drive motor after it has disengaged.
• a microswitch connected to a motor control is provided in a recess of the machine element or of the guide element intended for receiving the latching elements, in order to stop a drive motor after it has disengaged.
• it is desirable that the drive is switched off immediately after the disengagement occurs.
• a plug connection connected to the motor control can also be provided between the machine element and the guide element, which is disconnected when disengaged and stops the drive motor by means of the motor control.
• Socket and socket strip are tilted, it is proposed that a socket or socket strip of the plug connection is elastically suspended in a holder connected to the guide element.
• a bolt can be provided to secure the gate outside of the operating times be, which prevents the latching connection from snapping out, in order to thereby offer effective protection against burglars.
• Figure 1 a disengageable device for guiding
• Figure 2 a disengageable device for guiding machine elements in a second embodiment
• Figure 3 a disengageable device for guiding machine elements in a third embodiment
• Figure 4 a disengageable device for guiding machine elements in a fourth
• Figure 5 is a schematic representation of a roller shutter with a disengageable device for guiding machine elements
• Figure 6 a representation like Figure 5 of a gate with articulated, rigid panels
• FIG. 7 a sectional partial view according to line BB of FIG. 1;
• Figure 8 a detail C of a modification of the embodiment shown in Fig. 1.
• the roller door shown in Figure 5 has a flexible curtain 1, which can be rolled up or down by means of a motor drive, not shown, with a guide rod 2 attached to the lower end of the curtain 1 moving up or down and opening or opening 3 is closed.
• the guide rod 2 is guided horizontally displaceably in lateral guide rails 4, 5.
• guide rods 2 are provided with guide elements ⁇ , 7 which engage in the guide track 8 of the guide rails 4, 5.
• Figure 6 shows another embodiment of an automatically opening gate, in which rigid panels 9 made of metal or lightweight panels etc. are each guided in the guideways 8 of the guide rails 4 " , 5 with lateral guide elements 6, 7, which protrude laterally beyond the panel dimensions
• the guide rod 2 or the panels 9 represent machine elements which are guided along the guide track 8 with the device according to the invention.
• Figures 1 to 4 each represent different embodiments of the invention in a representation according to section A-A of Figure 5.
• the guide rod 2 which here represents the machine element to be guided.
• the guide rod 2 has two at one end Recesses 10, 11, m engage the two locking elements 12, 13 in a form-fitting manner.
• the locking elements 12, 13 are arranged at the ends of two legs 14, 15 of a U-shaped bracket 16.
• the two legs 14, 15 of the U-shaped support 16 are connected to one another by a connecting bridge 17.
• a joint 18, 19 can be provided between the connecting web 17 and the two legs 14, 15. Instead of the joint 18, 19 would also be an elastic one
• Guide element 20 attached, which engages with its free end 21 m, the guide track 8 of said guide rail 4.
• the latching elements 12, 13 of the U-shaped bracket 16 together with the recesses 10, 11 of the guide rod 2 form a latching connection.
• the side force required to disengage the latching connection which acts on the guide rod 2 from the direction indicated by arrow 48 in FIG. 1, depends on the force with which the two latching elements 12, 13 are pressed against the recesses 10, 11.
• the contact pressure required for this is essentially generated by a screw 47 which passes through the two legs 14, 15 and pulls them together.
• the screw 47 can also be provided with a suitable spring, as shown in FIG. Instead of the screw 47, of course, an elastic rubber element, which is connected to the two legs 14, 15, or a clamp be provided.
• the screw 47 can also be completely replaced by a spring or, as shown in FIG. 8, by an eccentric 50.
• a socket strip 22 is arranged in the space enclosed by the U-shaped holder 16 and is suspended in the holder 16 by means of an elastic connection indicated by symbolic springs 23.
• a plug connector 24 which can be inserted into the socket connector 22 is fixedly attached to the guide rod 2.
• the elastic suspension of the socket strip 22 ensures in the event that the latching connection is disengaged that the contact pins 25 of the plug strip 24 are not bent. As soon as the socket strip 22 disengages from the
• Plug strip 24 is disconnected and the electrical contacts are interrupted, a motor control, not shown, which is connected via a cable 26 to the socket strip 22, immediately stops the drive motor, not shown, in order to avoid any damage to the roller door.
• Recesses 10, 11 which are intended to engage a second U-shaped holder, not shown.
• the recess 11 is provided with a microswitch 27 which is connected to the plug strip 24 via a cable 28.
• Actuating element 29 of microswitch 27 protrudes into recess 11 from behind. In the latched state of the latching connection, the actuating element 29 is pressed in the direction of the microswitch 27 and thereby closes one Contact of the microswitch 27, not shown. When the latching connection is disengaged, the actuating element 29 m enters the free space of the recess 11 em and thereby interrupts the contact of the microswitch 27, which is connected via the cable 28, the plug connection 22, 24 and the cable 26 Motor control, not shown, acts and immediately interrupts the motor drive.
• the latching connection can be prevented from being disengaged by means of bolts 30, which establish a rigid connection between a panel 9 and the lateral guide rails 4, 5.
• An exemplary embodiment of the connection is a V-shaped holder 31 with two legs 32, 33, at the ends of which the locking elements 12, 13 are arranged.
• the latching elements 12, 13 engage in recesses 10, 11 of the guide rod 2 em.
• the recesses 10, 11 and locking elements 12, 13 shown in FIG. 2 have a hexagonal cross section.
• a hexagonal cross section is also possible in the first exemplary embodiment and a circular cross section in the second exemplary embodiment.
• the two legs 32, 33 of the V-shaped holder 31 are connected to one another by a spring joint 34.
• the spring joint 34 presses the two legs 32, 33 together, so that the locking elements 12, 13 are printed with a predetermined force m and the recesses 10, 11 and snap there.
• the snap-in also takes place by means of legs 32, 33 pressed apart, the force required for this likewise being able to be generated by a modified spring joint 34.
• the spring joint 34 engages in a modified guideway 35 of the guide rail 4 em, where it is guided displaceably. Otherwise, the second embodiment works in accordance with the first embodiment, so that in particular with respect to the
• Embodiment is also provided with a U-shaped bracket 16 connected to a guide element 20, modified latching elements 36, 37 are provided at the ends of the two legs 14, 15, which engage m appropriately designed recesses 38, 39 of the guide rod 2.
• the U-shaped bracket 16 shown here can be produced in a simple manner from a sheet metal strip by bending.
• the modified locking elements 36, 37 thus consist only of the bent ends of the sheet metal strip. This embodiment is particularly inexpensive to manufacture.
• the guide element 20 is connected to a T-shaped bracket 40, in turn locking elements 12, 13 being formed at the ends of the T-shaped bracket 40.
• a hinge 41 is attached, with which two jaws 42, 43 are connected to one another.
• the two jaws 42, 43 are by a Screw 47 pressed together, a spring 44 being arranged in operative connection between the one jaw 42 and the screw 47, which spring can be configured as a coil spring or a stack of disk springs.
• the two jaws 42, 43 each have recesses 45, 46 into which the locking elements 12, 13 of the T-shaped bracket 40 can be snapped.
• the T-shaped bracket 40 is firmly clamped by the compressed jaws 42, 43, so that a disengagement is guaranteed in the event of exceptional momentary loads.

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Control Of Multiple Motors (AREA)
• Control Of Motors That Do Not Use Commutators (AREA)
• Vending Machines For Individual Products (AREA)
• Control Of Electric Motors In General (AREA)
• Hydraulic Turbines (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
• Soil Working Implements (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 1999
  • 1999-06-19 DE DE19928211A patent/DE19928211A1/de not_active Ceased
• 2000
  • 2000-06-17 DE DE50013817T patent/DE50013817D1/de not_active Expired - Lifetime
  • 2000-06-17 DK DK00945769T patent/DK1196679T3/da active
  • 2000-06-17 AT AT00945769T patent/ATE347014T1/de not_active IP Right Cessation
  • 2000-06-17 AU AU59744/00A patent/AU5974400A/en not_active Abandoned
  • 2000-06-17 WO PCT/EP2000/005599 patent/WO2000079090A1/fr active IP Right Grant
  • 2000-06-17 EP EP00945769A patent/EP1196679B1/fr not_active Expired - Lifetime

Non-Patent Citations (1)

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