FR2458658A1 - Budfin spring device for weight compensation of a mobile portal - Google Patents

Budfin spring device for weight compensation of a mobile portal Download PDF

Info

Publication number
FR2458658A1
FR2458658A1 FR8013013A FR8013013A FR2458658A1 FR 2458658 A1 FR2458658 A1 FR 2458658A1 FR 8013013 A FR8013013 A FR 8013013A FR 8013013 A FR8013013 A FR 8013013A FR 2458658 A1 FR2458658 A1 FR 2458658A1
Authority
FR
France
Prior art keywords
ribbon
spring
characterized
element
device according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8013013A
Other languages
French (fr)
Other versions
FR2458658B1 (en
Inventor
Michael Hormann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoermann KG Amshausen
Hoermann KG
Original Assignee
Hoermann KG Amshausen
Hoermann KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19792923327 priority Critical patent/DE2923327C2/de
Application filed by Hoermann KG Amshausen, Hoermann KG filed Critical Hoermann KG Amshausen
Publication of FR2458658A1 publication Critical patent/FR2458658A1/en
Application granted granted Critical
Publication of FR2458658B1 publication Critical patent/FR2458658B1/fr
Application status is Expired legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10Counterbalance devices
    • E05D13/12Counterbalance devices with springs
    • E05D13/1207Counterbalance devices with springs with tension springs
    • E05D13/1215Counterbalance devices with springs with tension springs specially adapted for overhead wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10Counterbalance devices
    • E05D13/12Counterbalance devices with springs
    • E05D13/1207Counterbalance devices with springs with tension springs
    • E05D13/1223Spring safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04Wound springs
    • F16F1/12Attachments or mountings
    • F16F1/128Attachments or mountings with motion-limiting means, e.g. with a full-length guide element or ball joint connections; with protective outer cover
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/12Vibration-dampers; Shock-absorbers using plastic deformation of members
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Abstract

<P> THE INVENTION RELATES TO A BUD SPRING DEVICE FOR COMPENSATING THE WEIGHT OF A MOBILE GATE. </ P> <P> IT IS CHARACTERIZED IN THAT AT LEAST ONE OF THE BUDDY SPRINGS 3 IS TRAVERSE BY AN ENSEMBLE 8 FORM OF A TAPE-SHAPED ELEMENT 9 AND AN EXTENDED CONSTRUCTION ELEMENT 10, WHICH IS, ON THE ONE HAND, GUIDED TO SLIDE LONGITUDINALLY WITH RESPECT TO RIBBON 9 AND, OTHERWISE, FIXED AT THE OTHER END OF THE TRACTION BOLT SPRING 3 AT LEAST ONE OF THE ELEMENTS THAT ARE THE RIBBON 9 AND THE BUILDING ELEMENT 10 IN PARTICULAR IN THE PARTY NEAR THE HIGH END 2 OF THE BUDDY SPRING, A DAMPING AREA IN THE FORM OF AN AREA 18 DEFORMABLE IN THE LONGITUDINAL SENSE OF THE RIBBON AND THE BUILDING ELEMENT. </ P> <P> APPLICATION TO THE PORTALS OF A ONLY TILT PANEL AT CEILING. </ P>

Description

The invention relates to a device for compensating the weight of a gate

  mobile and in particular a portal of

  a single panel tilting to the ceiling.

  The coil springs serve in a known manner to compensate

  the weight of the displaced gate panel, in such a way that

  that his movements, as far as possible over the whole par-

  course between closing and opening positions,

to be done with weak forces,

  During the movement of the gate panel between the

  the opening position and the closed position, the coil springs are only lengthened over a relatively

  weak and they are strongly prestressed. If such a res-

  pulling force breaks under its maximum elongation load, the sudden release of the force accumulated in the spring 1.5 causes an impact, with considerable energies,

  two parts of the spring on their supports and they move

  then uncontrolled @ outside the normal course

  spring. This entails a danger of significant damage.

  Damage to the construction of the door may result in deformities of such a magnitude that

  by simply changing the tension spring and possibly

  its support is no longer possible. On the contrary

  parts supporting the frame, respectively the pan-

  door can also be damaged and required.

  important costs for their refurbishment.

  In order to be able to coat a door panel (later) with a covering, soundproofing or insulation against heat

  and / or decorative applications while keeping the possibility

  In addition, with its weight balancing function, smaller additional springs were provided which, passing through the tension coil springs calibrated according to the initial weight of the door panel, were accommodated in the space at

  inside the turns of the initial coil springs.

  If an outer coil spring breaks, the additional internal coil spring is also overstretched

  as will be shown later so that this spring

  dull can no longer absorb the charges that are generated and also breaks * A result that the invention aims to obtain is a weight compensation device of a portal of the kind mentioned above, with which the dangers, respectively the possibilities of damage , caused by a spring that breaks as well as by an uncontrolled tearing of the spring from its normal position, or by a too abrupt shock to the door maneuver on the anchoring points are greatly reduced. For this purpose, the object of the invention is such a device, characterized in that at least one of the coil springs is traversed by an assembly formed of an element

  ribbon form receiving an ectrémité spring and a éé16-

  elongated construction, which is longitudinally longitudinally slidably guided with respect to the sliver and is secured to the other end of the drawbar spring and at least one of the elements that

  are the ribbon and the building element present, in parti-

  in the area surrounding the upper textremity of the coil spring, a damping zone in the form of a deformable zone in the longitudinal direction of the ribbon and / or

the building element.

  By the whole which crosses the spring, and which is constituted

  killed by the ribbon and the elongated building element, which is guided so as to slide along the ribbon lengthwise and whose length variation as a result of this sliding corresponds to at least the elongation of the spring

  when the door panel is moved from its

  up to its closed position, it is first assured that in the event of breakage of the spring, fragments of variable size depending on the break point, can not move away laterally uncontrollably since the whole who crosses them will prevent them. As a result, the danger of damage to objects within their reach, and in particular injuries, is greatly reduced.

  people who are close enough.

  In addition, the force of deflection as the spring that breaks

  exerts on both its chassis anchors and the articula-

  which supports the panel door, is diminished by the damping area or even annihilated in a

large extent.

  -3- In this respect, the following particularity should be noted: If, for example, the ends of the springs are

  maintained in their anchorage so that they can not escape

  per side or cause a spatial shift of their anchorage, the spacing between the ends of the springs, respectively anchors, could never undergo a

  at a distance greater than the maximum elongation

  spring in normal operation. The element of

  truction constituted by the ribbon and the element of construction

  guided on it so that it can slide in the direction

  Therefore, the longitudinal axis of the longitudinal sliding path would not be subjected to any traction force, so that the damping zone, in the form of a zone of elastic deformation, would not be subjected to any traction force. This, however, would not allow the attenuation of the forces exerted on the stops stopped. In the case of a suspension of the spring as it is supposed the Dréambule known in revendlcation 1l the spring is however

  hanging in an entrance opening of the ribbon, articulated itself

  even on an articulated support device of the door panel Because of this articulation and the conformation of the ribbon, this ribbon is subjected in case of rupture of the spring, & a force which shifts it in such a way by turning it

  around its point of articulation and deforming the material

  ribbon relative to the spring suspension of

  such as at that moment the length between the point of

  the spring on the ribbon and the support point on the

  frame is larger than the normal lengthening of the spring.

  As a result, the building element within the structure

  spell is subject to a change in length that goes beyond

  of the sliding course. At the end of the slide

  the construction element is therefore subjected to a pulling force under which the damping zone is lengthened

  with deformation of the band provided accordingly.

  Since the elongation of the deformation zone

  requires energy, the force that attacks the ribbon is consumed

  in the same proportion. During the movement of

  tape upwards, apart from the suspension of the

  fate, this work of deformation / and additionally the folding -4-

  of the section of ribbon which is outside the suspension

  of the spring are destroying energy whose order of magnitude

  can be determined with a good approximation by the conformation of the deformation zone. This prevents the breakaway spring from acting with such force on the anchor points - particularly in the hinge area of the door panel suspension - that damage can occur.

  produce on the supporting parts of the article constmction

abutment and / or chassis.

  The damping zone can be made in a simple manner, preferably by a corrugated profile, a more or less pronounced meandering profile, or a zig-zag profile of the ribbon or

  the building element. The importance of deformations

  length of the ribbon depends to a large extent on the resistance to deformation and the

spring force to capture.

  In order to avoid that the parts of the construction element which are guided against each other with sliding lengthwise, namely the ribbon and the construction element, do not abut, when a normal biasing of the spring between the opening and closing positions of the door, against the inner faces of the coils of the coil springs, the longitudinal guidance is achieved with a weak clearance so that bends towards the turns of the flanges remain inside the hollow space of the spring. For this purpose, it is possible to operate in such a way that the end zones of the ribbon and of the construction element which face each other overlap and surround each other, at least partially, by folds each provided on

  their ends with a weak game.

  In another preferred embodiment, the element of con-

  truction is fixed with the lower end of the tension coil spring on the frame of the gate and the damping zone is in the region of the strip in the attachment opening of which, respectively in one of the openings of hanging from which is hooked

  the upper end, folded hook-shaped, of the res-

pulled coil.

  In principle, both parts of the building element can have the form of ruan. It is equally thinkable

  to make the two pieces in a bar-shaped material

  However, care must be taken to ensure that the sliding guide in the longitudinal direction at low clearance is retained so as to prevent the building element from abutting against the turns of the mainspring spring. In an execution

  preferential element of construction is made of

  round while the other building element is a

  independent part or a7p with the suspension tape.

  In the case of the double-spring embodiment mentioned at the beginning, comprising an internal coil spring and an outer coil spring A surrounding it, the

  according to the invention can also be applied in

  passing the building element consisting of the pieces that slide against each other in the sounds of the

  length & through the inner space of the inner spring.

  By means of the exemplary embodiments shown in the drawings

  sin, the invention will be explained in more detail. FIGS. 1 and 2 show a side view partially in section, as well as a side view turned ninety degrees with respect to the preceding one, of an embodiment of the construction element with the anchoring points on the frame and the hinged construction of the gate panel and a spring shown only in its end portions in broken lines; FIG. 3: another execution example on which the

  ribbon showing the openings for

  and the ribbon-shaped piece of the

  construction are made in one piece.

  As can be seen from FIG. 1, the support part 1

  to the articulation of the gate panel and which is

  ribbon-shaped, is used for hanging the end

  in the form of a hook 2 of the 3-thread pull spring

  As a result, a number of fastening apertures 4 are distributed over the length of the ribbon in order to be able to modify the tensile force of the traction coil spring. The support part 1 g -6- consists, in its opposite part to the spring, in a loop 5

  by which it can be articulated on a pivot corresponding to

  of the articulated support device of the portal panel.

  This pivot of the artioulation device serving as a point of

  The hollow is chosen so that during the pivoting of the gate panel it describes a path such that the elongation inflicted on the spring balances the weight of the gate panel set in motion. By its lower end 6 in the form of a hook, the traction spring Soudin 3 is hooked on

  a fixed anchoring portion 7 of the frame.

  The internal space of the spring, surrounded by the turns of the

  spring, is crossed by an element designated in its entirety.

  8 by which is constituted in the example of execution of

  1 and 2 by a ribbon-shaped portion 9 and a

  tie 10 in bar or wire material. By entourage of I '

  another room, elements 9 and 10 are guided one by one.

  port to the other and can slide in the direction of the

  LATIONS. To do this, the lower end 11 of the ribbon-shaped portion 9 is bent at right angles and pierced with a hole through which the rod-shaped construction element 10 passes. The upper end of the The rod-shaped construction element is folded around the ribbon-shaped portion 9 so that it constitutes a loop 12 which surrounds the ribbon-shaped portion. Drilling in the bent section 11 of the ribbon-shaped portion 9 and the loop 12 are dimensioned such that they surround the included portion with a weak clearance. In this way we have a simple way of shaping the sliding guide in the

  meaning of the length so that the construction element

  tion, respectively its parts can not be used

  to the point that the building element abuts

  against the turns of the coil spring creating noise.

  In the embodiment of Figures 1 and 2, the upper end 13 of the ribbon-shaped portion 9 is connected to the lower end 15 of the support part 1, below

  of the engagement opening of the crook-shaped end 2

  spring 3 chet; in this case the connection is made by screwing *. The lower end 16 of the rod-shaped construction element 10 is hooked into a bore -40 17 of the same anchoring part of the frame 7 as the one on -7-

  which also attaches the lower end 6 of the

  3 by means of the screw connection 14 between the ribbon-shaped support part 1 and the ribbon-shaped part 9 of the construction element 8 it is possible to provide an existing spring device the building element and thus re-equip existing gates. As can be seen in FIG. 3, the support portion and the ribbon-shaped portion may be constituted by a band-shaped section of tape, which provides an easier way of making gates equipped with their elements from the start. of construction. In this case, the part

  support is therefore shaped in terminal section 1 t by

key of the band part 9.

  Beyond the sliding path in the longitudinal direction

  dinal of building element 8, delimited by the loop

  12 and the curved end 11 in the state of rest, respectively

  the lowest elongation of the spring in the operating state, there is provided in the upper part of the ribbon-shaped section 9 a damping zone under

  deformable section form 18 formed in the case pre-

  by a number of wave-shaped folds which follow each other in the longitudinal direction of the ribbon and which are

  perpendicular to the lateral edges of the ribbon.

  In place of the wavy form one can also choose

  a zig-zag shape or a trapezoidal conformation

  the. In all cases, this deformation range must be

  put under the action of a corresponding force in the direction

  length of the ribbon a change in the length of the

  ban by flattening folds. This is done by applying

  cation of a corresponding force which is a function of the

  riau ribbon and fold shape cho sie. This last

  depends more on the energy that is to be annihilated

  the spring breaks as well as the length change path available which, when the spring breaks, exceeds

  3 the elongation in length under maximum stress in function

normal operation.

  By means of FIG. 1, it is indicated by an arrow 19 that, during a rupture of the spring 3, the support portion rotates

  around the center of Loop 5 which gives a path

  beyond the maximum spacing between the opening 4 intended to -b- receive the hook-shaped end 2 of the spring 3 and the

hooking point 17.

  In the drawings, the parts and sections essential to the scale have been represented, other ratios of length are possible without difficulty. In all cases, the distance path in possible length of the two parts 9 and 10 of the construction element 8 should be chosen at least sufficiently

  large so that at maximum elongation of the spring in function-

  Normally this course will be fully or slightly

close by.

  It must be ensured that the stability of the sliding guide

  longitudinal position is maintained without folding the two

  parts of the building element. If, therefore, a length sliding path is chosen which is slightly greater than the length elongation in normal operation, the function of the damping zone is nevertheless ensured because the spring which breaks out escapes laterally and will not what therefore, seeks to achieve a greater length of the building element. In all cases the parts of the building element will reach the end of the

  sliding course by stopping the loop against ltex-

  folded end after which a new biasing to elongation brings the desired deformation of the damping area.

Claims (8)

  1.Device for compensating the weight of a movable gate such as a portal of a single panel tilting to the ceiling, the weight of which is compensated by means of coil springs which act in tension between the frame and the panel, in particular on
  Leveraging Game of the portal, which springs have their extremes
  Means which are held by tape-like holding members each having at least one latching aperture, which device is characterized in that at least one of the coil springs (3, is traversed by a set (1) formed of a ribbon-shaped element (9) and an elongate building element (10), which is, on the one hand,
  guided in such a way that it can slide longitudinally
  ribbon port (9) and, on the other hand, fastened to the other end (6) of the draw-wire spring (3) in that at least
  one of the elements that are the ribbon (9) and the element of con-
  truction (10) presents in particular in the neighboring
  the upper end (2) of the coil spring, a damping zone in the form of a zone (18) which is deformable in
  the longitudinal direction of the ribbon and / or the construction element
  tlon. 2. Device according to claim 1, characterized in that
  that the deformable zone (18) of the element (9,10) consi drS-- -
  formed by a course in meanders, that these meanders
  consist of undulations and / or zigzags.
  35. Device according to claim 1 or 2, characterized in that the longitudinal sliding guide between the ribbon (9) and the construction element (10) has a clearance sufficiently low that in normal operation, a contact between the ribbon or the construction element and the inner walls of the spring turns be avoided
  4. Device according to any one of claims 1 to
  3, characterized in that for guiding the slide
  longitudinally between the ribbon-shaped portion (9) and the construction element (10) the facing end sections of the construction element (10) and the ribbon-shaped portion (9) are cover and surround themselves, at least
  partially by bending (11,12) of their ends.
-10-
  5. Device according to any one of the claims
  1 to 4, characterized in that the construction element (10) is with the lower textremit6 (6) of the mainspring spring (3) fixed on the frame (7) of the gate and in that the deformation (1h) 'is in the section of the
  ribbon-shaped part (9) which for the attachment of
  curved hook-shaped upper end (2) of the
  traction coil (3) has at least
an openingZ4).
  6. Device according to any one of the claims
  1 to 5, characterized in that the ribbon-shaped portion (9) and the support portion (1) in which there is at least
  an attachment opening (4) constitute two pieces
  tails connected between d.les by a screw assembly (14).
  7. Device according to any one of claims 1
  to 5 characterized in that the ribbon-shaped portion 9 and
  the support part (1) constitute one and the same piece.
  8. Device according to any one of the claims
  1-7, characterized in that the construction element (10)
  is made of filiform material.
  9. Device according to any one of claims 1
  A., characterized in that between the set (b) constituted
  by the ribbon-shaped part (9) and the construction element
  tion (10) t on the one hand, and the coil spring A (3) on the other
  on the other hand, it is engaged in the coil spring and the inside.
FR8013013A 1979-06-08 1980-06-04 Expired FR2458658B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792923327 DE2923327C2 (en) 1979-06-08 1979-06-08

Publications (2)

Publication Number Publication Date
FR2458658A1 true FR2458658A1 (en) 1981-01-02
FR2458658B1 FR2458658B1 (en) 1984-01-06

Family

ID=6072814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8013013A Expired FR2458658B1 (en) 1979-06-08 1980-06-04

Country Status (5)

Country Link
BE (1) BE883487A (en)
DE (1) DE2923327C2 (en)
FR (1) FR2458658B1 (en)
GB (1) GB2050560B (en)
NL (1) NL8003164A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112050C2 (en) * 1981-03-24 1990-07-12 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen, De
DE3538801C2 (en) * 1985-10-31 1993-12-09 Hoermann Kg An overhead door with weight compensating coil spring which is penetrated by a protection element
DE19500067C2 (en) * 1995-01-03 2000-09-14 Hoermann Genk N V overhead door
AU2004200526B2 (en) 2003-02-14 2009-01-08 Hunter Douglas Industries B.V. Cord tensioner
CA2485724C (en) 2003-10-24 2012-02-07 Hunter Douglas Industries B.V. Cord tensioner
US7114544B2 (en) 2004-09-07 2006-10-03 Hunter Douglas Inc. Cord tensioner for covering for architectural openings
NL1032353C2 (en) * 2006-08-22 2008-02-25 Flexi Force B V Spring break protection.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057235A (en) * 1976-06-03 1977-11-08 William Halopoff Spring retainer for garage door hardware
US4082133A (en) * 1976-06-03 1978-04-04 William Halopoff Sectional garage door spring container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057235A (en) * 1976-06-03 1977-11-08 William Halopoff Spring retainer for garage door hardware
US4082133A (en) * 1976-06-03 1978-04-04 William Halopoff Sectional garage door spring container

Also Published As

Publication number Publication date
BE883487A1 (en)
NL8003164A (en) 1980-12-10
FR2458658B1 (en) 1984-01-06
GB2050560A (en) 1981-01-07
DE2923327C2 (en) 1981-01-08
GB2050560B (en) 1983-03-23
BE883487A (en) 1980-09-15
DE2923327B1 (en) 1980-05-08

Similar Documents

Publication Publication Date Title
ES2586660T3 (en) Rolling rack device
US5595233A (en) Hurricane shutters
US5299617A (en) Breakaway roll-up door
US20050172570A1 (en) Directional sliding pendulum seismic isolation systems with articulated sliding assembly
CA2436381C (en) Roll-up door curtain and guides
US20040256176A1 (en) Safety anchoring device comprising a shock damper
DE19726156C2 (en) Rapid roll-up door
CN102140882B (en) High load operation of an industrial roll door
DE4003218C2 (en)
CA2131314C (en) A roller blind, particularly for use as blackout shade
US6042158A (en) Drop-catch mechanism for vertically movable doors
US5259433A (en) Door counterweight system
CZ299696A3 (en) Closing device with a folding flexible curtain
EP1067992B1 (en) Catching device for a system for protecting persons working at heights
US6422289B1 (en) Deployment control for rolling protective shutters
KR100634865B1 (en) Sliding screen door
US5056579A (en) Reinforcing and guiding bar for a flexible curtain in a vertically raisable door
US3504460A (en) Catenary cable support system and load relief coupling construction therefor
HU0002413A2 (en) Flexible shutter door and the flexible guide instrument redőnyajtóhoz
DE60129125T2 (en) Energy absorber
ES2271416T3 (en) Closure of building carried out in a resistant form.
US6024341A (en) Crash attenuator of compressible sections
US5819834A (en) Door assembly with improved support system
US5103937A (en) Sway minimization system for elevator cables
US3866367A (en) Deformable coupling

Legal Events

Date Code Title Description
ST Notification of lapse