CN2368969Y - Folding life saving laddle - Google Patents
Folding life saving laddle Download PDFInfo
- Publication number
- CN2368969Y CN2368969Y CN98216422U CN98216422U CN2368969Y CN 2368969 Y CN2368969 Y CN 2368969Y CN 98216422 U CN98216422 U CN 98216422U CN 98216422 U CN98216422 U CN 98216422U CN 2368969 Y CN2368969 Y CN 2368969Y
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- Prior art keywords
- interim
- ladder
- life saving
- folding
- folding life
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/52—Ladders in general with non-rigid longitudinal members
- E06C1/525—Ladders in general with non-rigid longitudinal members made of a continuous strip of material
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/52—Ladders in general with non-rigid longitudinal members
- E06C1/56—Rope or chain ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/14—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with non-rigid longitudinal members, e.g. rope or chain ladders, ladders of the lazy-tongs type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The utility model relates to a folding life saving ladder, composed of high-intensity stairs and thin parts, wherein, displacement bulges are arranged on the thin parts. The folding ladder can be safely lowered from an upper storey to the ground, and the sections of the folding ladder allow the stairs to be folded by high compression. The folding ladder can be easily unfolded by using a casing with two sets of temporary binding elements. When emergency occurs, the folding ladder can be opened to a first state by loosening a part of the shell, and a mounting element can be taken out and mounted on a window grill. The utility model can ensure that narrow fabric supporting members can not wind between the mounting element and the top stair of the ladder.
Description
For a long time, people thirst for having a kind of light-duty folding ladder always, so that when the highrise building breaking out of fire, can be fixed on this folding ladder on window or other opening of building, so that the auxiliary road of escape is provided for the occupants.The invention that is intended to satisfy these long-term needs is disclosed in many patent documents.For example, the U.S. Patent No. 190342 of Lake discloses a kind of folding ladder, and the step of this folding ladder links together with the bonding jumper of rectangular shape, so that can link together step under the non-folded state of ladder.Each step (except the step of bottom) all has two groups of holes, and front and back on the pedal of step, these two groups of holes are spaced apart, and one group of hole wherein is used for the step on top, and another group hole is used to connect a following step.
The U.S. Patent No. 314287 of Feigenbarm discloses a kind of jack ladder, this ladder has round step, and the circle step is fixed on the grid of building, when trap door is removed and leaves a passage, this ladder just can be unfolded, and makes ladder be lowered following ground.
The U.S. Patent No. 1424115 of Nileon discloses a kind of jack ladder, this jack ladder has hollow tubulose step, the two ends of step are sectioned half, make its cross section for semicircle, and it is curved a right angle, to pinion a rope tightly, match with wall simultaneously, thereby make step and metope keep enough distance, so that pin can step down in above the step.
The U.S. Patent No. 4098372 of Luckey discloses the folding ladder that a kind of non-combustible material is made, and this ladder has two flexible strap, and step is transverse on this two strap with a determining deviation.These steps have the branch of bifurcated, thereby, when ladder launches, these steps are stack up singly, the mode of stacking can guarantee that a hollow area is freely arranged between every pair of adjacent step, when using ladder, this freely hollow area be used for holding a strap section fully or hold band shape or the funicular element that supports step.
The U.S. Patent No. 298097 of Eriksson discloses a kind of Emergency Ladder, this ladder is made of some steps, and the two ends of step are fixed on the flexible member of both sides, and step is made by metal material, and can fold up, the top of Emergency Ladder is used for linking to each other with body of wall or other thing.
The U.S. Patent No. 4846306 of Ventz discloses a kind of strand Emergency Ladder, this strand Emergency Ladder comprises the supporting cables and the narrow step of series installation between supporting cables of pair of parallel, these steps wherein are very narrow, can only hold a hand or a pin simultaneously.
People's such as Douglas U.S. Patent No. 5605205 discloses a kind of folding ladder, and this folding ladder has: some are used for and the surperficial hook that links to each other of windowsill; One stiffener, this stiffener extends between the hook, and forms a groove; Article one, elongated nylon cord support component or cable wire support component; Many steps made from method of moulding; Have a heap and a nest between each step, be used to hold flexible strutting piece; A connector is used for each step is connected to flexible strutting piece; A shell is used to hold these steps under folded state.Shell has a neck and a handle, and this handle passes the groove of rigid spacer element.This handle may move in this groove, thereby can open this shell, and ladder is launched into a user mode of wanting.
Although for light-duty folding ladder is provided, existing a large amount of patent is used to address these problems, the existing development history that goes up a century of folding ladder, but, still necessaryly provide a kind of light-duty folding ladder, when breaking out of fire, just in case main escape route (as stair) is when being blocked, make folding ladder can easily transfer to ground safely, and make folding ladder when folded state to have the compression compactedness of height.
The utility model provides a kind of very compact folding ladder, and this folding ladder is in light weight, and can transfer to ground apace safely when breaking out of fire.First purpose of the present utility model is to guarantee that ladder can easily transfer safely.Second purpose of the present utility model is that an outer cover that has handle will be provided, in case installation elements is fixed on the grid (sill) of windowsill, as long as handle is abandon outside the window, this outer cover just allows folding ladder to launch at an easy rate.The 3rd purpose of the present utility model is parking space required will reduce folding ladder and do not use the time.
The purpose of this utility model reaches by following characteristics: Folding life saving laddle of the present utility model comprises:
An installation elements has two hooks, and the end of each hook is towards equidirectional, a support bar that connects described two hooks, and described installation elements manufactures tube element; A plurality of steps, each step has a section and is provided with an elongated first, each described step comprises at least one notch at its relative two ends, said first has a top and the downward-sloping real limit that links to each other with described top, thereby makes that per 6 inches had 10 steps at least when ladder was folded into folded state.A cloth support, said cloth support are passed described at least one notch that is positioned on each step two ends, and link to each other with the described support bar of described installation elements.
Described top is a straight top.
Described top can be an arc top.
It is different that the section of described each step has a size at least.
The section of described each step is identical basically.
For different steps, the width at described straight top is different.
For different steps, the arc radius at described arc top is different.
Folding life saving laddle of the present utility model, it is characterized in that, also comprise at least two displacement projections, described displacement projection and described first form an integral body, described two displacement projections are transverse to the length direction of described step first, and the opposite end that extends and be positioned at described first on this direction.
The thickness of described cloth support is 1/8 inch, and width is about 1 inch.
Described cloth support is passed a single groove on described close each step end and with a clip and rivet cloth support is fixed on the step.
Described elongated first has opposite end, near on each described step end at least two grooves is being arranged, and described cloth support is passed described two grooves, and is fixed on the described step with a linkage.
Described elongated first has opposite end, near on each described step end three grooves is being arranged, and described cloth support is passed described three grooves, and is fixed on the described step.
A kind of installing plate that is used for Folding life saving laddle of the present utility model, comprise: at least two connection holes and at least two support components, each described support component be used to receive hold the described hook of making tube element an end to prevent moving radially of tube element.
A kind of shell that is used to open Folding life saving laddle of the present utility model, described shell comprises:
A compliant member, it has two opposed surface, and its length surpasses its width; A handle links to each other with described compliant member on the surface in described two opposed surface; One first interim bundled piece group, the described first interim bundled piece group comprises: one first interim bundled piece is fixed near the end long on the surface in described two opposed surface; One second interim binding the primary can be connected on the described first interim binding uncle and separate, and is gone up near the long end on another surface that is fixed in described two opposed surface; And one second interim bundled piece group, the described second bundled piece group comprises: one the 3rd interim bundled piece, be fixed on the described shell, and distance is described
At least two inches of first bundled pieces; One the 4th interim bundled piece, can be connected on the described the 3rd interim bundled piece, also can separate, and be fixed on another surface in described two opposed surface, make at least two inches at interval of it and the described second interim bundled pieces from the described the 3rd interim bundled piece.
Below in conjunction with accompanying drawing the utility model is described in detail, so that understand the utility model better.Each given embodiment of the present utility model usefulness that just is used to explain, and be not to come scope of the present utility model is limited with these embodiment.
Fig. 1 represents according to the stereogram of ladder of the present utility model when the deployed condition;
The stereogram and the sectional drawing of the step of the ladder in Fig. 2 (a) and 2 (b) the difference presentation graphs 1;
Fig. 3 (a)～3 (c) expression is connected in a narrow cloth support sectional drawing of other technology on the step of a modification, and step wherein has only a groove in the end of each step, and this narrow cloth support is passed this groove;
Fig. 4 is a sectional drawing, and expression is passed the another kind of technology that each end has the step of three grooves to narrow cloth support;
The sectional drawing of Fig. 5 (a) and the other cross sectional shape of 5 (b) expression, each step is the step of being made by a kind of elongated material among the figure, each end at each step all has one and stepped all-in-one-piece displacement projection, wherein the shape of the straightway of each step and other step are basic identical, size is also basic identical, and when ladder is in folded state, the compression compactness of all step energy height of ladder;
Fig. 6 (a) and 6 (b) are the sectional drawings with step of other cross sectional shape, each step is the step of being made by a kind of elongated material among the figure, each end at each step all has one and stepped all-in-one-piece displacement projection, wherein the size of other step of each step of ladder and ladder is inequality, and when ladder is in folded state, the compression compactness of all step energy height of ladder;
Fig. 7 is the sectional drawing of ladder in the utility model preferred embodiment, each step forms an arch section in a zone among the figure, this arch section has comprised the top of each step, at least one side at arch section has a straight line bead, wherein the end of each step has one and stepped all-in-one-piece displacement projection, other step size of each step and ladder is basic identical, and when ladder is in folded state, the compression compactness of all step energy height of ladder;
Fig. 8 represents that ladder of the present utility model is in the stereogram under the folded state of non-expansion, among the figure, ladder is pinioned by a shell, the effect of this shell is: when breaking out of fire or other emergency, for ladder being launched with not twining, in case an installation elements is hooked grid on the windowsill, and this shell just helps ladder is mentioned (as mentioning from a storage box) and step is transferred in groups;
One of Fig. 9 (a) and 9 (b) expression indicates " outlet " installing plate, and this piece plate is installed on the metope below the window grid, is used for the connection element and indicates that this can be used as the road of an escape when being in generation as emergencies such as fire;
Figure 10 (a) and 10 (b) represent to be used to store and launch two surfaces of the shell of ladder respectively, and this shell is used for the second floor window among the figure, and it is the expanded view on a plane.Size and the position of interim binding element (the binding element can be made of hook and ring) on shell that these figure get the bid and understand shell, these binding elements can make shell carry out three functions below will describing in detail;
Figure 11 (a) and 11 (b) represent to be used to store and launch two surfaces of the shell of ladder respectively, and this shell is used for three building windows among the figure, and it is the expanded view on a plane.Size and the position of interim binding element (the binding element can be made of hook and ring) on shell that these figure get the bid and understand shell, these binding elements can make three kinds of functions that the shell execution below will be described in detail as shown in Figure 10 (a) and 10 (b).
Term " highly folding " and " the compression compactness of height " used among the application are meant when ladder launches to have 10 or more a plurality of step in the height of per 6 inches (15.2cm).
With reference to Fig. 1, Fig. 1 is the stereogram of expression ladder 1 when being in deployed condition.Ladder comprises an installation elements 2 with two hooks, and the openend of each hook is all towards identical direction, thereby can be hooked in installation elements 2 on the grid (not shown) of window.This installation elements 2 is tubular structures, it can be solid, it also can be hollow (not shown), this installation elements 2 comprises a support bar 3, on this support bar 3, can connect one or more narrow cloth support 4, this narrow support member is made by webbing, and as nylon (or other any known fire-retardant, high-intensity, light-duty synthetic materials), this support member is used to support the step 5 of ladder 1.Narrow cloth support should be able to support the weight of 3000 pounds (1364 kilograms), and in preferred embodiment of the present utility model, cloth support is made by nylon, and it is wide to be 1 inch (2.54cm), and thick is 1/8 inch (3.18mm).
Step 5 is manufactured by thin, high-intensity material, and for example metal preferably is about 1/16 inch aluminium to 1/12 (1.66mm to 2.0mm) with thickness.10kpsi (7kg/mm also can apparatus has an appointment
2) or more high-intensity other material, wait as steel, titanium, carbon filament to replace aluminium.Step is made by a kind of high-intensity material, and this material can make these steps have high strength, though the thickness of step material less than 1/4 inch (6.4mm), this just can make step can be folded into the folded state of " highly ".If these steps are made with sheet metal, as steel or aluminium, so just can make these steps with the method for mold pressing, this is very economical.But these steps also can be made with other method, as adopting the aluminium or the molded aluminium manufacturing of extrusion molding.Step has an important techniques feature in appearance, and that is exactly in each step end or there is a displacement projection 6 vicinity, end, and this displacement projection 6 forms an integral body with step.The purpose that this projection 6 is set is that ladder can easily be transferred safely, guarantees that each step leaves wall a minimum range of holding toe is arranged, and makes that people's pin can step down in above the step when the people climbs under ladder.When making step with the method for extrusion molding, can be by metal between the step end being removed as die pressing, thus form two displacement projections 6.Like this, just can make the weight of each step all very light.Can add that at the top of each step some are used to improve the material or the decorative pattern (not shown) of frictional force, perhaps make these materials or decorative pattern directly be formed at the top of step, step on portion with the pin that is used for that forms each step.The width that preferably makes this pin on the step step on portion has one inch at least, even to guarantee that the cat ladder person does not wear footwear, steps down on the step also very comfortable.
Numerous steps that apparent another important technology feature of step is a ladder can be by high compression folding, folding narrow cloth support towards each step, thereby guaranteed the compactness of ladder energy height under deployed condition, and the time with underground the throwing away of the whole bundle of the ladder under the folded state, can ladder be launched into deployed condition, this will be explained in detail in the accompanying drawing of back with not twining.
The same with other illustrated embodiment, preferred embodiment of the present utility model meets the standard No.14.2-1990 (American National Standards InstituteStandard No.14.2-1990) of American National Standards Institute (ANSI).In addition, the narrow cloth support in the utility model also meets the standard method (small scale test) that the 701-of the NFA committee is used for the fire test of flame-retardant textile and film.
Fig. 2 (a) and Fig. 2 (c) represent stereogram and the sectional drawing according to first embodiment of the step of ladder in the utility model respectively.According to this embodiment, two grooves 7 are arranged near the end 8 of each step, the cross sectional shape of step end is curved, and the arc radius is three inches or bigger.Also expressed among the figure and how narrow cloth support 4 has been passed groove 7, and fixed, so that when using ladder, can be fixed on step 5 on the ladder with a fixing spacing with a linkage such as rivet 9.
Fig. 3 (a)～3 (c) is a sectional drawing, and expression is fixed to one or more narrow cloth support 4 on the improved step with a single groove 7, and narrow cloth support 4 is passed each step end 8.With reference to Fig. 3 (a), a clip 10 passes this single groove 7, and pressure is issued on narrow cloth support 4.Rivet 9 is fixed clip 10.In Fig. 3 (b) and 3 (c), utilize a compression fixture 11 that narrow cloth support is fixed.Narrow cloth support itself can be made into has one or more apertures 12, and these apertures can be spaced apart with a spacer element 13, as coming to support step 5 with it at interval with the ear of maize as shown in Fig. 3 (b).
Fig. 4 is a sectional drawing, represents with the next step that narrow cloth support 4 is passed close each step end 8 and have three grooves 7 of another kind of method.
Fig. 5 (a) and 5 (b) expression be the sectional drawing of folding paired step highly.In these two figure, these paired steps have different cross sections, and each end of each step has a displacement projection 6, and this displacement projection and step form an integral body.Cross section among Fig. 5 (a) is inverted V-shaped, and this inverted V-shaped is good not as the cross sectional shape among Fig. 5 (b), because there are not enough stayed surfaces on the summit of this inverted V-shaped, therefore not wearing footwear is uncomfortable above stepping down in.Cross section among Fig. 5 (b) is one and falls flute profile, and its top is one and has 1 inch wide flat surface at least.These figure have provided available step cross sectional shape, and the shape of the straightway of each step 5 is all identical among the figure, and the size of each step is also identical, and all steps of ladder can fold and draw in when folded state to heavens.
The paired step of Fig. 6 (a) and the another kind of cross sectional shape of 6 (b) expression, these steps can highly fold.Paired step among these two figure still has the cross section of different sizes, every end of step all comprises an integrally formed displacement projection 6, each step has a minimum dimension and is at least 1 inch wide pin and steps on the surface among Fig. 6 (a), and in Fig. 6 (b), the arc radius is at least 3 inches.These figure have provided available step cross sectional shape, the cross-sectional sizes difference of each step among the figure, and all steps of ladder can fold and draw in when folded state to heavens.
Fig. 7 is the sectional drawing of a pair of step in the preferred embodiment of the present utility model, each step all has a segmental arc 14 among the figure, the minimum arc radius is 3 inches, the minimum widith at each segmental arc top is 1 inch, at least one side at segmental arc is provided with a straight line nib 15, all there is an integrally formed displacement projection 6 end of each step, and each step of ladder is all identical with other step size, and these steps can be folded to heavens.
Fig. 8 represents that ladder of the present utility model is in the stereogram under the folded state of non-expansion, and among the figure, ladder is pinioned by a shell 16, and a handle 17 is arranged on the shell.When breaking out of fire or other emergency, for ladder being launched with not twining, and step transferred in groups (in case the grid that hooks on the windowsill with another handgrip installation elements 2), this handle just helps ladder to be mentioned (as mentioning from a storage box) with a hand.
Fig. 9 (a) and 9 (b) expression installing plate 18 (as shown in the figure, can indicate " outlet " on this plate), this piece installing plate right side are installed on the metope below the window grid.This piece installing plate can be installed with Connection Element, as passing hole 19 with the screw (not shown).Two perforates are arranged on installing plate, and perforate can comprise support ring 20, is used to receive the beginning of holding installation elements 2.These perforates and/or support ring allow the end of the tubular part of installation elements to insert, and stop the end directly upwards to be moved at all.The direction of arrow among Fig. 9 (a) is represented the direction of the beginning insertion support ring 20 of installation elements 2.The beginning of Fig. 9 (b) installation elements 2 is inserted the perforate of the installing plate 18 of support ring 20 fully, thereby will fix at the beginning, makes it to move on radially any.
Installing plate 18 has three functions.First function is, it can be marked to window, can be used as an outlet to represent this window, therefore, when breaking out of fire or other emergency, can remind this window of occupants of building to can be used as the road of an auxiliary escape.Second function is that it is supporting the beginning of installation elements, thereby installation elements is connected securely on the grid of windowsill.The 3rd function be, it provides a general installed part, thereby no matter how much thickness of wall is, can both guarantee that installation elements 2 is installed on the windowsill grid of any outward appearance well.
Two opposite surfaces of Figure 10 (a) and 10 (b) expression, one shell 16, rectangular, this shell is of great use when storing folding ladder and launching folding, the folding ladder among the figure is to design for the window that is used for second floor.Owing to have the folding property of height according to the step of folding ladder of the present utility model, therefore, be used for the ladder of the second floor window when folding, step stacks highly has only 6 inches, and the ladder that is used for this length has 11-12 step.What represent among these figure is the plane outspread drawing of shell, and provided shell 16 size, handle 17 the position that is provided with that position and each group grip part temporarily is set, can make shell finish three functions by these designs.
First function of shell is to wrap up the whole ladder with a plurality of steps and installation elements securely, thereby can just can mention window to ladder 1 with a hand, from window ladder is transferred.First group of interim bundled piece 21 (as constituting, and it being sold with VELCRO by name) with hook that cooperatively interacts and ring be arranged on two opposite ends of shell near, and be positioned at two opposing faces of shell, these are respectively shown in Figure 10 (a) and 10 (b).Figure 10 (a) expression has a side of the shell of a handle 17, and this side is that side that can see in Fig. 8.The opposite side of the shell shown in Figure 10 (b) expression Figure 10 (a).The interim bundled piece 21 that is positioned at the bottom of shell one side is connected on the interim bundled piece 21 that can match on the top that is positioned at another side of shell, and also can untie from this interim bundled piece that matches.Hold handle 17 with one like this and just can mention this ladder, this ladder 1 comprises that a plurality of steps 5 and installation elements (stack at a plurality of steps with the hook latch closure of opening, as shown in Figure 8).So, the user just can vacate the another hand and come drawing back interim bundled piece 21, make the shell part that is opened, take out the installation elements 2 of (from linking the step of going up most down) that links to each other with narrow cloth support 4 thereby can stack, and be fixed on the grid of windowsill from a plurality of steps.For the ease of installation elements being connected on the windowsill grid, can select the installing plate 18 shown in Fig. 9 (a) and 9 (b) for use.
Second function of shell be, in case by unclamping interim bundled piece 21 installation elements is untied from shell, shell just utilizes handle to support a plurality of steps of ladder.This function realizes by second group of interim bundled piece, second group of interim bundled piece 22 can be maintained the remainder of shell, thereby can wrap the step that is under the folded state safely, so when being connected to installation elements 2 on the window grid, and the step that is under the folded state is kept disorderly.These two groups interim bundled pieces 22 are arranged to from each end of shell a distance is inwardly arranged.After being connected to installation elements 2 on the windowsill grid securely with the hand of vacateing, the hand of holding handle stretches to outside window, is guaranteeing that narrow cloth support does not have as long as unclamp the hand release handle, just ladder to be launched fully under the situation of winding.
The 3rd function of shell is after handle is discharged, and the power that is produced when utilizing these folding ladders to descend just can be opened the interim bundled piece 22 on the shell, and after discharging with convenient handle, ladder launches automatically.Shown in Figure 10 (a) and 10 (b), for a shell that is used for the ladder of two floors, the size of shell is 8 inches * 20.75 inches, and interim bundled piece 22 is arranged on the place from 3 to 4 inches of outer casing ends.
Figure 11 (a) and 11 (b) expression is used for two opposite surfaces of shell 16 of ladder 1 of the windowsill of the 3rd floor, and what represent among these figure is the plane outspread drawing of shell, has provided interim bundled piece 21,22 among the figure and on shell the position has been set.Owing to have the folding property of height according to the step of folding ladder of the present utility model, therefore, be used for the ladder of the 3rd floor window when folding, the height that step stacks has only 12 inches, and the ladder that is used for this length has 12-24 step.Shown in Figure 11 (a) and 11 (b), for a shell that is used for the ladder of the 3rd floor, the size of shell is 8 inches * 32 inches.The interim bundled piece 21 that matches is arranged on as shown in the figure the opposite side and is positioned at the end opposite of shell.As shown in the figure, on length, each interim bundled piece 22 is arranged on the place from 3～4 inches of outer casing ends.Thereby, even after untiing interim bundled piece 21 installation elements 2 being taken away in the shell, shell also can wrap these steps safely.
As long as use shell, just can launch from folded state easily by following mode.At first, unclamp first group of interim element 21, shell 16 is opened a part.Then, one holds handle 17, mentions from stacking of a plurality of steps formations with another handgrip installation elements 2, and it is installed on the grid of windowsill.Then, keep shell towards, guarantee after the narrow cloth support between installation elements and the top step is not twined, handle to be put into outside window and to transfer.So the strength that is produced when falling by step is launched ladder automatically, that is to say, make ladder arrive " end of strap ".
Though the utility model has here been described like this,, clearly, can do various changes to the utility model.For example, all these steps all needn't be made with identical materials, also needn't manufacture identical form.These changes are not break away from essence of the present utility model and invention scope, and these all changes are conspicuous for those of ordinary skills, and appending claims should comprise all these changes among the application.
Claims (14)
1. Folding life saving laddle comprises:
An installation elements has two hooks, and the end of each hook is towards equidirectional, a support bar that connects described two hooks, and described installation elements manufactures tube element;
A plurality of steps, each step has a section and is provided with an elongated first, each described step comprises at least one notch at its relative two ends, said first has a top and the downward-sloping nib that links to each other with described top, thereby make when ladder is folded into folded state, per 6 inches have 10 steps at least
A cloth support, said cloth support are passed described at least one notch that is positioned on each step two ends, and link to each other with the described support bar of described installation elements.
2. Folding life saving laddle according to claim 1 is characterized in that, said top is a straight top.
3. Folding life saving laddle according to claim 1 is characterized in that, described top is an arc top.
4. Folding life saving laddle according to claim 1 is characterized in that, it is different that the section of described each step has a size at least.
5. according to each described Folding life saving laddle in the claim 1,2,3, it is characterized in that the section of described each step is identical basically.
6. according to claim 2 or 4 described Folding life saving laddles, it is characterized in that for different steps, the width at described straight top is different.
7. according to claim 3 or 4 described Folding life saving laddles, it is characterized in that for different steps, the arc radius at described arc top is different.
8. Folding life saving laddle according to claim 1, it is characterized in that, also comprise at least two displacement projections, described displacement projection and described first form an integral body, described two displacement projections are transverse to the length direction of described step first, and the opposite end that extends and be positioned at described first on this direction.
9. Folding life saving laddle according to claim 1 is characterized in that, the thickness of described cloth support is about 1/8 inch, and width is about 1 inch.
10. Folding life saving laddle according to claim 1 is characterized in that, described cloth support is passed a single groove on described close each step end and with a clip and rivet cloth support is fixed on the step.
11. Folding life saving laddle according to claim 1, it is characterized in that described elongated first has opposite end, at least two grooves are being arranged near on each described step end, described cloth support is passed described two grooves, and is fixed on the described step with a linkage.
12. Folding life saving laddle according to claim 1, it is characterized in that described elongated first has opposite end, three grooves are being arranged near on each described step end, described cloth support is passed described three grooves, and is fixed on the described step.
13. installing plate that is used for the described Folding life saving laddle of claim 1, comprise: at least two installing holes and at least two support components, each described support component are used to receive an end of the hook of making tube element that holds described Folding life saving laddle to prevent moving radially of tube element.
14. be used to open the shell of the described Folding life saving laddle of claim 1, described shell comprises:
A compliant member, it has two opposed surface, and its length surpasses its width;
A handle links to each other with described compliant member on the surface in described two opposed surface;
One first interim bundled piece group, the described first interim bundled piece group comprises:
One first interim bundled piece is fixed near the end long on the surface in described two opposed surface;
One second interim bundled piece can be connected to the described first interim bundled piece and also can separate from the described first interim bundled piece, and go up near the long end on another surface that is fixed in described two opposed surface; And
One second interim bundled piece group, the described second interim bundled piece group comprises:
One the 3rd interim bundled piece is fixed on the described shell, and apart from least two inches of the described first interim bundled pieces;
One the 4th interim bundled piece, can be connected on the described the 3rd interim bundled piece, also can separate, and be fixed on another surface in described two opposed surface, make at least two inches at interval of it and the described second interim bundled pieces from the described the 3rd interim bundled piece.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98216422U CN2368969Y (en) | 1998-05-11 | 1998-08-03 | Folding life saving laddle |
| CA002338306A CA2338306A1 (en) | 1998-08-03 | 1999-05-10 | Escape ladder having highly nesting rungs |
| PCT/US1999/010031 WO2000008292A1 (en) | 1998-05-11 | 1999-05-10 | Escape ladder having highly nesting rungs |
| EP99921771A EP1105615A1 (en) | 1998-05-11 | 1999-05-10 | Escape ladder having highly nesting rungs |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7518098A | 1998-05-11 | 1998-05-11 | |
| US09/075180 | 1998-05-11 | ||
| CN98216422U CN2368969Y (en) | 1998-05-11 | 1998-08-03 | Folding life saving laddle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368969Y true CN2368969Y (en) | 2000-03-15 |
Family
ID=25744868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98216422U Expired - Fee Related CN2368969Y (en) | 1998-05-11 | 1998-08-03 | Folding life saving laddle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1105615A1 (en) |
| CN (1) | CN2368969Y (en) |
| WO (1) | WO2000008292A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922244A (en) * | 2010-02-05 | 2010-12-22 | 湖南长大建设集团股份有限公司 | Folding portable stair for building construction working layer |
| CN103615189A (en) * | 2013-11-17 | 2014-03-05 | 国家电网公司 | Rope ladder connecting structure for aerial cable |
| CN107246237A (en) * | 2017-04-20 | 2017-10-13 | 广东恒洁卫浴有限公司 | The thin folded high building life ladder of position Z plates living |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6530455B1 (en) | 2000-08-11 | 2003-03-11 | Walter Kidde Portable Equipment, Inc. | Escape ladder |
| GB0114781D0 (en) * | 2001-06-16 | 2001-08-08 | Melville Aubrey E | Ladder |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1424115A (en) | 1921-06-24 | 1922-07-25 | Richard D Nileon | Rope ladder construction |
| US3307654A (en) * | 1965-08-02 | 1967-03-07 | Jack C Green | Emergency fire escape apparatus |
| FR2381894A1 (en) | 1977-02-25 | 1978-09-22 | Luckey Wilhelm | Folding ladder with flexible uprights - has U-section rungs with diverging arms leaving space for rope |
| GB2018339B (en) * | 1978-03-23 | 1982-06-03 | Probets C J | Fire escape apparatus |
| CA1117923A (en) * | 1979-09-11 | 1982-02-09 | Alexander S. Kiss | Web ladder release mechanism |
| US4298097A (en) | 1980-03-11 | 1981-11-03 | Eriksson Lars O | Escape-ladder |
| WO1987003328A1 (en) | 1985-11-27 | 1987-06-04 | Ventz Julius P R | Safety rope designed as a rope ladder |
| US4867275A (en) * | 1988-05-05 | 1989-09-19 | Islava Steven T | Escape ladder |
| GB8908792D0 (en) * | 1989-04-19 | 1989-06-07 | Nall John | A collapsible escape ladder |
| US5605205A (en) | 1994-08-12 | 1997-02-25 | Brk Brands, Inc. | Readily deployable portable escape ladder |
| DE19638704C2 (en) * | 1996-09-21 | 2002-07-11 | Bernd Luckey | Collapsible ladder |
-
1998
- 1998-08-03 CN CN98216422U patent/CN2368969Y/en not_active Expired - Fee Related
-
1999
- 1999-05-10 WO PCT/US1999/010031 patent/WO2000008292A1/en not_active Application Discontinuation
- 1999-05-10 EP EP99921771A patent/EP1105615A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922244A (en) * | 2010-02-05 | 2010-12-22 | 湖南长大建设集团股份有限公司 | Folding portable stair for building construction working layer |
| CN101922244B (en) * | 2010-02-05 | 2011-09-21 | 湖南长大建设集团股份有限公司 | Folding portable stair for building construction working layer |
| CN103615189A (en) * | 2013-11-17 | 2014-03-05 | 国家电网公司 | Rope ladder connecting structure for aerial cable |
| CN103615189B (en) * | 2013-11-17 | 2015-06-24 | 国家电网公司 | Rope ladder connecting structure for aerial cable |
| CN107246237A (en) * | 2017-04-20 | 2017-10-13 | 广东恒洁卫浴有限公司 | The thin folded high building life ladder of position Z plates living |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000008292A1 (en) | 2000-02-17 |
| EP1105615A1 (en) | 2001-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20010920 Decision number of declaring invalidation: 3975 Case number: W53438 Conclusion of examination: Declaration of claim 8, 13 invalid, 1-5. In the basis of claim 6, 7, 9-12, 14 on the right to continue to effectively maintain the patent. Decision date: 20010920 Denomination of utility model: Folding escape ladder Granted publication date: 20000315 Int.cl.7: E06C9/14 Patentee: X-IT Products, Ltd. Review decision number: 3975 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |