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Invention relates to devices for maintenance of equipment located at height. Safety device assisting ascending contains motorised ascending assisting device made capable to assist user to use ladder and including loop-shaped belt with fixture made and located with possibility to be attached to user safety equipment, where the loop-shaped belt provides traction force to help user to use ladder. In this system, the mentioned motorised device contains engine unit which contains engine having driving shaft, and driving pulley which is connected with driving shaft and which interacts with the loop-shaped belt, fall-stopping unit integrated with the mentioned motorised ascending assisting device and made and located so that it provides prevention of loop-shaped belt movement during fall, where the fall-stopping unit contains grip which is connected with engine unit and has at least one projection, at least one catch attached with possibility to turn towards driving pulley and made and located with possibility to interact with the mentioned at least one grip projection to prevent rotation of driving shaft thus preventing movement of loop-shared belt during fall. |
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Support element for object and device comprising support element Invention relates to ladders. A support element for an object comprises the first support stand and the second support stand, besides, the first support stand is made as capable of axial movement relative to the support stand for axial extension of the support element, at the same time the first support stand comprises a body, made as capable of placement and extension of the second support stand, at the same the body comprises a blocking element, having a blocking position for blocking of relative axial movement of the first support stand relative to the second support stand and having opening position for provision of relative axial movement of support stands, besides, the blocking element comprises a fixator, which is made as capable of movement by inclination in the body for alternate achievement of blocking position and opening position of the blocking element, at the same time the fixator comprises a cavity for placement of the second support stand, besides, the fixator comprises a limiting surface, which surrounds the perimeter of the cavity, besides, the limiting surface is made as capable of engagement with at least two opposite parts of the perimeter of the second support stand in the blocking position of the blocking element, besides, the support element additionally comprises a shift element to shift the support element to the position of the axial extension. Also a device is described, which comprises a frame, containing at least one support, besides, at least one support comprises a support element. |
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Lowering unit for arrangement of folded staircase flight includes steps, at least one guide, base; at that guides are fixed by hinges to the base. Between guide, base and steps delta-shaped tie with one changeable side is arranged; for this purpose slides are fixed in telescopic guides and by hinges the slides are also connected to the base from one side; at the other side planks are fixed to slides in order to arrange delta-shaped tie. At the corners of delta-shaped tie there is joint of the guide and base, joint of the plank and base, joint of the plank and slides. Steps have two groups of legs; one group is fixed at the step by hinge; the other is fixed rigidly; hinged legs in their turn are fixed rigidly at guides and legs with rigid connection are fixed at slides. |
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Light scaling ladder from composite materials includes one tubular string and tubular steps arranged at both sides from it and fixed in it in a cantilever manner with displacement of the steps of one side relative to the steps of the other side by a half of distance between steps, besides, the string wall is made preferably as triple-layer from outer and inner shells from composite, such as glass, organic or coal plastic, manufactured by the method of winding and a foam plastic layer of alternate thickness arranged between them with elliptical shape of the cross section of the inner shell, which is arranged with the outer large diameter of the ellipse with a thrust inside the outer shell, at the same time the steps are arranged in dead holes, made in the plane of the maximum thickness of the foam plastic layer, with its fixation in three rigid supports of composite and two cushions of foam plastic. Also the method is described to manufacture a light scaling ladder from composite materials. |
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Invention relates to fire-rescue equipment, namely, to equipment of fire-fighting and rescue vehicles. The automated supplying device of fire escape emergency ladder for rescue vehicles and fire motor ladders comprises mounted on the vehicle frame autonomous energy supply system, a complex support jacks with drives, a sliding rescue ladder, a telescoping drive, an azimuth drive, an elevation drive and the unit of horizontal alignment of the ladder. Autonomous energy supply system is connected by the feed lines with all energy consuming elements. Sensor-measuring instrument is connected to the target of ladder supply. Azimuthal position sensor of the ladder relative to the vehicle frame, the sensor of elevation position of the ladder relative to the horizon, the current ladder length sensor is connected to the ladder. Aiming device is mounted on the vehicle frame. Azimuthal position sensor relative to the vehicle frame is connected to the aiming device. The sensor of elevation position of the aiming device relative to the horizon. The central controller that is connected with the corresponding inputs to all the said sensors, and it is connected with the corresponding outputs to all the said drives, forming an automated tracking system. |
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Vertical stairs comprise a frame made of vertical stands and crosspieces connecting adjacent vertical stands to each other, steps, each being movably joined on the frame as capable of rotation relative to the horizontal axis, and facilities of steps fixation in the horizontal position. The frame comprises more than two vertical stands and is made as volumetrical steps are fixed on the frame into two vertical rows as capable of fixation of steps in the horizontal position inside the frame volume. Steps of one vertical row are displaced relative to steps of another vertical row along the height of the frame. |
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Invention relates to automotive industry. Vehicle step comprises case, first and second side sections. First side section can be mounted at first lateral girder attached to vehicle by its end side. Second side section can be mounted at second lateral girder attached to vehicle by its end side. Holes are made at first side section to be leveled with holes in first side girder to receive fasteners. Holes are made at second side section to be leveled with holes in second side girder to receive fasteners. Step comprises additionally the nuts welded to said first side section so that nut opening is aligned with that at first side section. Method of servicing of vehicle step comprises the stapes whereat: step first and second flat surfaces are abutted to first and second flat surfaces of first and second side girders attached to vehicle; steps are attached to first and second side girders when first and second flat step surfaces are coupled with first and second flat surfaces of first and second side girders; step is detached and removed thereafter. System of access into vehicle composed of a step comprises first and second side girders attached to vehicle and several steps extending between said first and second side girders. Every step is attached independently to first and second side girders. |
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Ladder stand comprises the first stands or lifting stands 14) with steps arranged in between, second stands or support stands hingedly connected to the first stands, a connecting or a tray element connected to the upper ends of the first stands, and also a U-shaped bracket, which has side elbows and a cross elbow and stretches from the connecting or the tray element as capable of rotation and/or displacement, besides, the bracket in the operating position forms a plane stretching across the ladder stand. The connecting or the tray element in the zone of each first stand has a through hole, providing for connection with its cavity, besides, one of side elbows of the bracket stretches through each through hole, besides, in the first position of the bracket its side elbows stretch inside cavities of the first stands, and the cross elbow is placed in the connecting or tray element or stretches in its zone, besides, in the second position the bracket stretches in the plane across the ladder stand, side elbows of the bracket stretch outside the cavities of the first stands and rest with their ends onto the connecting or tray element, besides, the free end of at least one of side elbows of the bracket has efficient cross section, which is more than the efficient cross section of the through hole. |
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Stairway for people escape from high-rise buildings and structures Stairway for people escape from high-rise buildings and structures comprises two parallel-arranged flexible filaments interconnected with the steps, support-bearing unit with handrails and a drum with an actuator handle. Between the steps on each flexible filament a device of dismountable construction with a suction cups is pivotally mounted, the lever of which has a variable length, for example, it is formed as a threaded joint, wherein the support-bearing unit comprises two drums located on one shaft, wherein both drums have an independent drive with fixation of angle of rotation using a ratchet mechanism. |
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Method to manufacture scaling folding ramp ladder from composite materials includes assembling sections in the form of a rigid spatial frame from truss bowstrings with stands, which are used to connect upper and lower longitudinal beams of box-shaped profile with tips near meeting ends and upper and lower units of section connection, which are fixed in opening ends of beam, and from transverse links of truss bowstrings in the form of a deck, which is fixed on upper longitudinal beams and is supported with a central longitudinal box-shaped beam in the form of a box-shaped crosspiece, which is fixed in stands near connection units, and also in the form of tubular crosspieces, which are fixed in lower longitudinal beams, besides, transverse links and longitudinal beams are made of unidirectional fibres of a composite material, such as glass-, organo- or coalplastic, at the same time longitudinal beams prior to assembly are molded by longitudinal impregnated binding glass tapes, laying the latter to form "П"-shaped profiles, and arranging them oppositely to each other one inside the other, providing for availability of larger quantity of glass tape layers on side walls of beams compared to the upper and lower shelf, and for fixation of tubular crosspieces, holes are made in inner walls of appropriate beams, the crosspiece itself is inserted until stop into the beam with a gap between shelves, sufficient to locate the fringe of the crosspiece end, which is made from one-three layers of glass plastic with coverage of the crosspiece wall and its bending inside the crosspiece, with the coverage value sufficient for placement of the fringe with a thrust between beam walls, besides, the stands of truss bowstrings are made of sheet glass plastic and are fixed with external walls of beams with fastening elements, apart from the stands near meetings ends, which are made of three-six layers of glass plastic, using which, upper and lower beams are jointly moulded, at the same time near opening ends of the beams the stands are supported with box-shaped stops, which are installed with a thrust between lower beams and the box-shaped crosspiece, which is installed directly under upper and central longitudinal beams. Also a scaling folding ramp ladder is described from composite materials. |
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Hoist and vehicle equipped therewith Proposed hoist comprises long section, particularly, expandable ladder or telescopic boom directed along, in fact, one axis, and platform or whatever other support to mount hoisting cage thereon. Said section is mounted on bed 12. Note here that spacer is arranged between section 14 and bed 12. Note that section is mounted at said spacer for hinged rotation about second axis A2 to compensate for irregularities in section position. Note also that said spacer is arranged at bed 12 for hinged turn relative to third axis A3 to lift unsecured end of section 14 relative to bed 12. Two drive cylinders 22A, 22B are hinged to said bed to lift and down said section. Every said cylinder is controlled by controller to allow simultaneous correction of position irregularities in section lifting by control over said drive cylinders. Transport facility comprises abode described hoist. |
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Light scaling multi-sectional ladder from composite material Light scaling multi-sectional ladder from a composite material includes metal units of sections connection to each other, metal cantilever grips fixed on the upper section, support plugs fixed on the lower section, each section is equipped with two tubular carriages made by the winding method, connected by tubular crosspieces-steps moulded to them, each unit of connection is arranged from upper and lower tips fixed accordingly from the upper and lower ends in the carriage cavity, at the same time, for instance, the lower tip is equipped with a captive nut, accordingly, on the upper one there is an external thread, the captive nut is installed as movable and non-detachably as the tip made of a tubular part arranged in the cavity of the carriage is glued into the carriage, as well as an alignment-seating conical groove and an support circular ledge, the response tip is made from a similar tubular part, its alignment-seating cone is arranged as external, and its outer surface is equipped with an alignment-lead-in cylindrical belt in front of the response thread for a captive nut. Besides, in both tips at the outer end there is an axial threaded hole to the cavity of the tubular part for installation of a special bolt plug for drainage of a condensate from the carriage, and in the tip with the conical groove near its bottom there are two and more evenly arranged radial holes for displacement of water as cones approach. Besides, the tubular part of each tip is equipped with a shell from a composite material, for instance, on the basis of a glass tissue impregnated with a synthetic binder wound in one-three layers as the tip is glued into the carriage, and bent inside the tubular part. Besides, in the wall of the tubular part there are at least two grooves and at least two holes, at the same time layers of the impregnated material above the groove are pressed into the groove with circular turns of impregnated threads, for instance, glass ones, and above the hole - are mainly arranged along the chord. |
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Step for vehicle contains "П"-shaped flat-topped frame located in the area of door opening of vehicle cabin and accommodated under fixed step. Transversally oriented portion of "П"-shaped frame forms footboard. Free ends of vertically oriented frame portions are linked with assembly for turning frame into up and down position. Turning assembly is made as two located in parallel irregular parallelograms. Longitudinally oriented rods of parallelograms are pivotally linked with vertically oriented portions of "П"-shaped frame and vehicle frame. Length of upper rods exceeds the length of lower rods of these mechanisms. Lower rods of both parallelograms are interconnected by common crossmember. Power hydraulic cylinder is pivotally connected with crossmember and with vehicle frame. Knuckle pivots of parallelogram mechanism longitudinal arms and articulation joint of hydraulic cylinder with vehicle's frame are parallel to "П"-shaped frame and located tier-by-tier in vehicle's frame niche under fixed step. |
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Staircase for cab of transport facility, preferably timber industry vehicle Staircase for cab of transport facility contains leverage located in the area of door opening under the cab. Leverage has parallel longitudinal links which are located in vertical plane of vehicle frame being transversally oriented relative to longitudinal axis. The mentioned links are pivotally connected with tiered horizontally oriented links with steps being installed on them and forming flight. Leverage is connected with hydraulic power cylinder. The first relative to cab door opening longitudinally oriented link is made as bracket located on vehicle frame. Bracket height is equal to length of the second longitudinally oriented link. In the upper portion of bracket, hydraulic cylinder is installed which is connected with horizontally oriented link of bottom stair step in the area between longitudinally oriented links of leverage. |
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Device to install and fix hose line in building staircases Invention relates to devices for installation and fixation of a hose line in parallel staircases of a building and may be used to extinguish fire and perform rescue operations. The device to install and fix a hose line in building staircases comprises a handle and stair posts rigidly connected to ascending and descending stair flights, a handle and/or a spacer of parallel staircase rail turns. Rail spacers are installed horizontally in conventional points of crossing the ascending flight rail bars and the lower face of the descending flight in a cross cut of a building, at the same time the spacers are fixed dead at one end to a strip steel tape of a bar and/or to a stand of rail grid of the ascending flight, and at the other end - to the lower face of the descending stair fight, producing a place for easy installation and fixation of a hose line with hose retentions. |
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Movable staircase comprises double metal, parallel and pairwise arranged and hingedly fixed open strings, forming two parallelograms, to which steps, railing stands and handrails are hingedly fixed. The staircase may vary its geometry, during vertical displacement of a mooring pontoon relative to a static pier, besides, all elements of the staircase may move in parallel to each other - steps will always be parallel to the horizontal upper site of the pier, and the handrails will always be parallel to double open strings. |
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Stepladder comprises the main stand with two legs arranged at the angle a to each other and at least one step between them, and a flap stand with two arranged legs at the angle to each other, joined with the main one by means of hinged joints and their fastening elements. Fastening elements of both hinged joints are arranged on one axis, each of two hinged joints is made in the form of two hollow semi-hinged joints, installed on the main and flap stands, and on surfaces of the above semi-hinged joints facing each other and their opposite sides there are cylindrical ledges, end surfaces of contact of which with each other and with fastening elements are made at the angles α/2 to the appropriate surface of the semi-hinged joints, at the same time at least one of cylindrical ledges facing each other is made circular to form a circular groove inside it, having diameter, which is larger than the diameter of the other opposite cylindrical ledge, and the latter is placed in the above circular groove. |
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Device for emergency evacuation of people Invention relates to devices for emergency evacuation of people. Device for emergency evacuation of people from the first level selectively to the second level, which is arranged above the first level, or to the third level, which is arranged under the first level, arranged in the form of ladder. One end of ladder is connected to the first level, and the other end is arranged with the possibility of displacement between upper level and lower level, or vice versa. For evacuation to lower level, device is converted into slope shape. |
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Stop mechanism for collapsible ladder Stop mechanism for collapsible ladder comprises several ladder sections, at the same time each ladder section has two ladder stands arranged parallel to each other and mutually joined at one end by crosspiece to form U-shaped ladder section, besides each ladder section is telescopically pulled into ladder section arranged below to form collapsible ladder, at the same time in lower end of ladder stands there are shock absorbers arranged, moreover, stop mechanism comprises stop mechanisms installed on each ladder stand, adjoining upper end of this ladder stand, and stop holes adjacent to lower end of this ladder stand, besides each stop mechanism comprises stop pin displaced by spring in direction of extended position to get engaged with stop hole available in ladder stand related to ladder section arranged above. Stop mechanism additionally comprises actuating elements to release stop mechanisms, at the same time these actuating elements are installed at least on one ladder section, besides each of shock absorbers of ladder sections is arranged with skewed surface, moreover, skewed surface of shock absorbers is designed for interaction with stop pins in ladder sections to pull stair section stop pin in, bringing it from extended and locking position to intermediate position, when ladder section arranged above is released and lowered, besides stop pins have skewed end, at the same time skewed surface of stop pins related to ladder section makes it possible for these stop pins to pull in further, thus changing from intermediate position to fully pulled-in or removed position from locking hole, releasing ladder section arranged below released one and ladder section arranged above, making it possible therefore to fold or lower all ladder sections arranged below released ladder section. |
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Sectional stairs "nevidimka" (versions) Sectional stairs "Nevidimka" consist of one section including a fixed member attached with the fastener to buildings, facilities or their parts and hinged to horizontal rotation axis to one transverse member from the link which is hinged by means of fastener to movable longitudinal member, at least one member (with finishing material or without it) covering the section in folded position, at least one device fixing the transverse member in unfolded position, at least one lock fixing the transverse and longitudinal movable member in folded position, at least one device for moving to folded or unfolded position at least from one and the same location. |
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System of staircase mainly for vehicles System of staircase comprises facility for engagement on wall, single stand, in upper part of which engagement facility is provided, steps arranged on single stand on its both sides, at that mentioned steps are hingedly connected by their internal ends with single stand, around axes, which are installed orthogonally to stand, as a result, steps may take two extreme positions, facility for support against wall installed on both sides of single stand. |
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Invention relates to the device or appliance intended for elevating and/or descending at least one person. The proposed device arranged on a high-rise structure comprises a long rail-like section, a guiding segment passing along the former, a segment intended for taking force transferred to aforesaid section and segment and an elevating appliance. The latter comprises at least one elevating console at least one platform or seat, a safety device and/or handle at least one force transfer element and/or drive entering the guiding segment and/or section or acting on them, and a member that holds back aforesaid element or drive in at least one guiding section and/or segment or on them. |
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Yansufin shielded escape stair with vertical flights and lifts Shielded fire escape consists of load-carrying frame with load-carrying end enclosures hinged thereto, which are made of rectangular grid frames hinged to each other, stair flights with half-landings, front enclosures made of rectangular meshes hinged to each other, and clamps with end enclosures. Front stair enclosures facing the building comprise shielded plates made from heat-proof material, on which there provided are door openings made of the same heat-proof material and opened inward the stair well. On load-carrying frame from the building side there attached is horizontal "п"-shaped tube with punched holes directed to shielded plates; at that perforated tube is blanked off on one side in longitudinal symmetry axis. To the other side of perforated tube there attached is a tube bend directed downwards, and on the end of that tube fixed is a quick-detachable Bogdanov/Rott nut, and on adjacent half-landings in the corners of stair well there made are holes with diameter of not less than 100 mm with narrow annulus with chamfers whereinto passed is a fire-hose equipped with Bogdanov/Rott nuts on its ends. At that fire-hose length is equal to stair height, and is connected to "п"-shaped perforated tube with Bogdanov/Rott nuts, and the other fire-hose of the same length is passed into holes on half-landings and is blanked off from above, and suspended on load-carrying frame or a plug of perforated tube; at that between two landings there provided are shutoff cocks with fire-hoses and fire nozzles, and stair flights are made vertical at right angle to half-landings. |
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Powered screened fifi ladder designed by n r yansufin Invention refers to the sphere of construction and deals with design of fire fighting equipment. The powered screened FiFi ladder consists of a bearing frame, butt-end support netted enclosures, a netted front enclosure, a screened enclosure (between the building wall and the ladder) made of heat-resistant sheet steel cool-washed with a water jet from the U-shaped perforated tube, flights with semi-landings which when assembled form twice as large a landing equipped with water duct riser pipes with nozzles and valves, as well as with a Rot/Bogdanov half-nut/ with fire hoses and hose nozzles attached to them. To the bearing frame there are holders attached (arranged along the longitudinal axis of symmetry at equal distances from the frame butt ends) with two pairs of single-rail wheels linked to electric motors and planet gear units. There is also a cable layer attached to the bearing frame (located on its transverse axis of symmetry) that consists of a reel, slippings, a hydraulic coupling and an electric motor of unidirectional rotation irrespective of the direction of the ladder motion along the monorail. There are regularly spaced brackets preventing cable deflection attached to the wall along the building perimeter within the stretch between the cable layer reel and the bearing frame. At the projecting corners of the building between the level of the fastened overhanging double-T beams and that of the brackets there are semicylindrical cable protectors attached with hooks at the bottom and at the bracket ends, turned 180° relative to the building. The call button actuating the ladder approaching the window and overspanning the whole of a vertical row of windows (from the ground floor to the roof) is at the ladder evolution control console that may be remotely mounted at the lower landing. |
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Device comprises longitudinal members connected with each other through a number of transversal bridges, fixing means, which retains the device on building roof ridge and at least one removable wheel. Transversal bridges are made as ladder steps. Fixing means is made as skid pivotally connected to area located at or near longitudinal member ends to create double-armed levers, which may be rotated in longitudinal vertical planes. At least one front end of each skid is bent towards facial device side. Rear skid ends are pivotally connected to railing ends. Other ends thereof may be detachably connected with longitudinal member in area corresponding to different skid rotation angles, which define discretely regulated fixer opening angle. |
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Device to cool cantilever beam and monorail in fire condition Device is adapted to cool cantilever beam and monorail made as flange beam connected to lower part of end of cantilevered flange beam having another end clamped in outer building wall under eaves. Depression is created in building wall from outer building wall side and spaced 0.5-1 m from blind area of the building. The depression is made by horizontal orifice drilling and is adapted to receive water supply riser block fixed in the depression by means of cement mortar. The water supply riser block is made as pipe and flange with large-diameter ring and Bogdanov type connective half nut connected thereto. Water supply pipe is arranged on upper face of cantilever beam. Water supply pipe has diameter equal to that of water supply riser block. One end of water supply pipe is sealed with steel sheet having strength equal to that of pipe wall. Two perforated orifice rows are arranged in said pipe in lower part thereof so that the rows are symmetric about axis of cantilever beam and monorail. Water supply riser is arranged inside building and is inserted in orifices drilled in ceiling and aligned with each other up to clamped cantilevered flanged beam end. One riser end is connected to water supply riser block by means of elbow member having the same diameter and bent through right angle. Another end thereof is connected to water supply pipe arranged on upper face of cantilevered beam. |
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Shielded fire escape with lifting device Fire escape comprises load-bearing frame with bearing end barriers pivotally connected thereto, flights with semi-platforms and with pivotally connected collapsible railing, front barrier made as rectangular nets articulated with each other and clips with end barriers. The end barriers are composed of rectangular girder frames articulated one to another. The railing may be folded so that the railing is within flight plane during transportation. Front barrier facing building is composed of shielded heat-resistant sheet material provided with door openings. Door leafs are made of the same sheet material and are opened in shaft towards stairs. U-shaped tube with perforated orifices is connected to load-bearing frame from building side. The perforated orifices face to shielding sheets. The tube is sealed from the first side of symmetry axis. Another end thereof has vertical water riser extending for the full building height and comprising fire hose connection means arranged at lower riser end. The second water riser is connected from the second side of symmetry axis. The second water riser has branches and valves for fire hoses provided with water canons. Double-groove pulley having large diameter is connected to driving shaft of planetary reducer driven by electric motor. Two double-groove pulleys having lesser diameters are arranged directly over hauling pulleys to increase cable wrapping area. Two channel beams are arranged along longitudinal symmetry axis so that the beams are spaced equal distances from load-bearing frame axis and equally project from load-bearing frame end. Two ears are connected to sealed ends of the channel beams. The ears have coaxial and horizontal orifices made in ear ends and the same double-groove pulley having lesser diameters. Two cables pass in double-groove pulley grooves. Pivotally connected frames with c-shaped lift cage guiding means are connected to ends near load-bearing frame corners and to end bearing and girder-framed fire escape barriers. Cable ends are connected to ends of equal-arm levers having ears located over each cage. Levers arranged over cage are rotary fastened to vertical control-rod having axis passing through center of empty cage gravity. Orifice to receive control rod and tube enclosing the control rod is formed on horizontal cage roof part. Load washer is secured under said orifice. Support ring having diametrical orifice is located under the asher. Finger or bolt is inserted in the diametrical orifice and is fixed with nut. Tube enclosing control-rod has diametrically formed elongated orifice. Bent horizontal plate is connected to upper tube end. Lower end thereof has fixed equal-arm lever having horizontal and coaxial orifices at ear ends. Compression spring is put on lower stem of control-rod and is stopped with adjusting nut. Lower equal-arm lever is connected with symmetric lever with respect to longitudinal symmetry axis and has elongated orifice made in area of connection thereof with equal-arm lever. Another lever end has orifice. The lever comprises evolvent double-sided caps to brake cages in the case of cable breaking. Slides enclosing c-shaped guiding means are connected to upper cage parts opposite to guiding means. The slides have rectangular orifices arranged in mid-height areas. Floating slide is located in c-shaped guiding means and has T-shaped cross-section. Orifice is made in floating slide wall. Floating slide wall is inserted in the rectangular orifice made in slide fastened to cage and is connected with symmetric lever provided with cams by means of finger or bolt. |
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Load-bearing staircase assembly and staircase Load-bearing staircase assembly comprises angle member and linear elongated unit fastened to one angle member face by means of hinge connection with two degrees of freedom in angle member face plane. Free end of linear elongated unit is provided with orifice for releasable hinge connection member receiving. The linear elongated units are fastened to both faces of angle member from inner or outer sides thereof by means of hinge connections with two degrees of freedom in each angle member face plane. Each linear elongated unit has at least one orifice to receive fastening member adapted to connect staircase going or riser. Staircase including at least two above load-bearing assemblies is also disclosed. |
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Folding ladder for railway car compartment (versions) Proposed folding ladder has shaped posts 1, 2, steps hinge-connected with shaped posts made for getting of steps into post profiles when folding the ladder, guide hinge-connecting movable post with compartment wall to plate post in operating position, and ladder operating and idle position locks. Fixed post 1 is secured on wall of compartment and is furnished with ladder idle position lock made in form of turnable catch engaging with lower edge of slot of movable post 2. Distance between hinge joints of guide in plane of step turning is equal to distance between hinge joints of step. According to first design version, guide is installed in middle part of fixed post. According to second design version, fixed post secured on compartment wall is provided with crossmember rigidly fastened on wall to which guide is hinge-connected. According to third design version, upper guide is hinge-connected with upper support of compartment wall, and lower guide is hinge-connected with lower support. |
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Fireproof shielded fire stairs Stairs comprises load-bearing frame with load-bearing end barrier formed of rectangular girder frame pivotally connected one to another, flight of stairs with semi-panels and with pivotally connected barriers. The barriers are laid in plane defined by flight of stairs. The stairs also has front barriers made of rectangular nets pivotally connected one to another and clamps with end barriers. Front barrier facing the building is formed as shielding sheets of heat-resistant material in which door openings are formed. The doors are also created of the same heat-resistant material and may be opened inward shaft of the stairs. Horizontal U-shaped tube with perforated orifices is connected to load-bearing frame from building side. The perforated orifices are directed to shielding sheets. One tube end is closed from one side of axis of stairs symmetry and vertical water supply riser is connected to the tube from another end thereof. The riser extends along the full building height and is provided with fire hose connection means arranged in lower part thereof. Another water supply riser is arranged from opposite side of stairs symmetry and is formed with branches and taps adapted to attach fire hoses provided with water cannons. |
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Grid made of composite materials and used for handrail Grid comprises rod pattern. Rods include layers of crossing and/or interlacing glass or basalt fibers or combination thereof with polymeric binding agent based on epoxy, polyester or vinyl ethereal resin having thickness of 0.5 - 5 mm. Fibers and polymeric binding agent are taken with volumetric ratio of 1:0.4 - 1:0.6. Rods are formed with outer protective coating having 0.2 - 3 mm thickness and based on polymeric binding agent. Coating is made as a single whole with polymeric binding agent of rod material as continuous uniform layer reinforced with outer layer from rod side across the whole surface thereof. Rods may have thin-walled side extensions. Gaps between the extensions may be filled with foamed filling material, for instance foam plastic, foamed glass, foamed concrete or with grinded rubber or rubber-cord waste products. |
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Ladder comprises three posts having through orifices and connected one to another in upper parts thereof by hinge unit. Flexible cross-bars are inserted in orifices to connect posts in pairs along perimeter. Hinge unit is formed as pin on which two posts are installed so that posts may rotate in parallel planes. Rigidly attached to pin end is clip to which the third post is pivotally connected so that the third post may rotate in plane perpendicular to planes of the first and the second posts rotation. The first and the second posts have upper extensions. Ladder is provided with seat secured to above extensions. |
Another patent 2513549.