NL2001919C - A climbing product step. - Google Patents

A climbing product step. Download PDF

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Publication number
NL2001919C
NL2001919C NL2001919A NL2001919A NL2001919C NL 2001919 C NL2001919 C NL 2001919C NL 2001919 A NL2001919 A NL 2001919A NL 2001919 A NL2001919 A NL 2001919A NL 2001919 C NL2001919 C NL 2001919C
Authority
NL
Netherlands
Prior art keywords
main body
climbing product
climbing
product according
metal element
Prior art date
Application number
NL2001919A
Other languages
Dutch (nl)
Inventor
Caspar Bernard Lampe
Maarten Olden
Original Assignee
Lampe Holding B V
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
Application filed by Lampe Holding B V filed Critical Lampe Holding B V
Priority to NL2001919A priority Critical patent/NL2001919C/en
Priority to EP09168601A priority patent/EP2159368B1/en
Priority to AT09168601T priority patent/ATE519917T1/en
Application granted granted Critical
Publication of NL2001919C publication Critical patent/NL2001919C/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C12/00—Step-stools
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/108—Treads of wood or with an upper layer of wood
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/387—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders having tip-up steps
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/081—Rungs or other treads comprising anti-slip features

Abstract

A climbing product step forming a generally planar horizontal treading surface to support the feet of a human standing on said step, said step having main body of a wooden board with a front, a rear, a treading surface and a bottom, wherein the treading surface and the bottom are at least substantially planar and substantially parallel to each other A metal member is fitted to said main body, said metal member including a metal plate portion extending underneath the bottom of the main body and said metal member including multiple raised metal anti-slip portions, said anti-slip portion extending upward from the metal plate portion through corresponding openings in the main body, said anti-slip portions having a top end that protrudes upward from the treading surface of the main body.

Description

A CLIMBING PRODUCT STEP
The present invention relates to a climbing product step forming a generally planar horizontal treading surface to support the feet of a human standing on said step.
From the prior art climbing products are known wherein the generally planar horizontal 5 treading surface to support the feet of a human standing on said step is formed by a wooden board with a front, a rear, a treading surface and a bottom, wherein the treading surface and the bottom are at least substantially planar and substantially parallel to each other. The wood can be solid wood, but often a multilayer board is employed.
10 For staircases the use of wooden boards for the steps, also referred to as treads, is quite common. For other climbing products, such as step stools, the use of wooden boards for the steps is less well known.
For climbing products it is desired to provide anti-slip measure to increase the grip of the feet 15 of the human on the step.
For a wooden board step stability is another issue of relevance, in particular when it is desired to avoid an undue thickness of the wooden board, e.g. for weight and/or aesthetic reasons.
20
The present invention provides a climbing product step forming a generally planar horizontal treading surface to support the feet of a human standing on said step, said step having main body of a wooden board with a front, a rear, a treading surface and a bottom, wherein the treading surface and the bottom are substantially planar and substantially parallel to each 25 other. According to the invention a metal member is fitted to said main body, said metal member including a metal plate portion extending underneath the bottom of the main body and said metal member including multiple raised metal anti-slip portions, said anti-slip portion extending upward from the metal plate portion through corresponding openings in the main body, said anti-slip portions having a top end that protrudes upward from the treading surface 30 of the main body.
The climbing product is in a preferred embodiment a step stool, most preferably a folding step stool.
2001919- 5 -2-
Further preferred details of the step and climbing product according to the invention are mentioned in the subclauses and will be explained in the description of a preferred embodiment.
In the drawings:
Fig. 1 shows schematically an example of a folding step stool with one or more steps according to the invention,
Fig. 2 shows a half of a step of the step stool in a perspective view from above, 10 Fig. 3 shows the half of the step in a perspective view from another angle, and Fig. 4 shows the half of the step in side view.
A preferred embodiment of the step and a step stool according to the invention will now be explained referring to the figures.
15
In figure 1 an example of step stool is shown having a folding frame with a pair of front legs 2a, 2b and a pair of rear legs 3a, 3b. The rear legs are coupled to the front legs at an elevated position, via hinges 4a, b, so that the front and rear legs are relatively pivotable between an opened use position, wherein the front and rear legs in general define an A in 20 side view of the step stool, and a collapsed storage position, wherein the front and rear legs are essentially parallel.
This step stool includes an upper step 10 and in this example two lower steps 11,12, each step 10,11,12 being arranged between and coupled to the front legs 2a,b for pivotable 25 movement between a horizontal use position and a storage position, each step being adapted to support a person thereon. Obviously the step stool may have another number of steps. In another example the step stool is not foldable and has a rigid frame accommodating one or more steps.
30 In this example the front legs are interconnected at spaced positions by pivot shafts 2c which each rotatably support the front portion of a step.
In this example the legs 2a, b are here connected by a hoop portion at their upper ends.
35 As is common in folding step stools a linkage member arrangement is provided, which effects simultaneous movement of the steps 10-12 as the frame is folded to move between the use position and the collapsed position. Here the linkage member arrangement includes -3- one or more linkage members 7 extending between the rear legs on the one hand and a step (here step 11) on the other hand, each linkage member 7 being hinged at its ends. Furthermore one or more linkage members 8 extend between the steps 11,12,13, each connection being pivotal. Upon collapse of the step stool the steps 10-12 are tilted to their 5 vertical or storage position, here essentially parallel to the plane of the front legs.
The frame here includes a crossbar 9 extending between the rear legs 2a,b and arranged so that a rear portion of the upper step 10 rests on said crossbar 9 when said upper step 10 is in its use position. A further crossbar 9b is fitted in this example at a lower level between the 10 rear legs.
The upper step 10 is provided with a manually releasable latch mechanism, e.g. including a pivotal latch member (not shown), that is arranged to catch under or onto the crossbar 9, the legs or other part of the step stool, when the frame is folded to its use position so as to retain 15 the step stool 1 in the use position.
The pivotal latch member is operable manually by a user to disengage the latch member and to fold the frame to the storage position. Due to the linkage member arrangement the motion of the upper step 10 simultaneously causes the frame to fold and all other steps to move 20 towards their storage position.
A preferred embodiment of a step, in this example step 12, of the step stool 1 will now be discussed in more detail referring to the figures 2-4. It is noted that said figures only show the left-hand half portion of the step, the right-hand half portion being symmetrical to the left-25 hand half portion.
The step 12 has a generally planar horizontal treading surface to support the feet of a human standing on said step. The step has a main body 20 formed by a wooden board with a front 21, a rear 22, a treading surface 23 and a bottom 24, wherein the treading surface and the 30 bottom are at least substantially planar and substantially parallel to each other.
The wooden board 20 here is made of plywood, as is preferred, and here, as is also preferred, includes a curved downward front portion at the front 21.
35 A metal member 30 is fitted to said main body 20, said metal member 30 including a metal plate portion 31 extending underneath the bottom 24 of the main body 20 and said metal member including multiple raised metal anti-slip portions 32.
-4-
The metal member 30 can be fastened to the main body in any suitable manner, e.g. by one or more screws or bolts, or even by adhesive as may be preferred.
5 The anti-slip portions 32 extend upward from the metal plate portion 31 through corresponding openings 25 in the main body 20. The anti-slip portions 32 have a top end that protrudes above the treading surface of the main body, so that the feet, or footwear, of the person standing on the step have extra grip on the step. Here the top end of each portion 32 is straight, but the top end may also have other configurations, e.g. undulating.
10
The openings 25 in the main body can be made to receive the anti-slip portions 32 with some play between the sides of the portions and the main body in order to facilitate the manufacturing of the step.
15 As is preferred the metal member is a monolithic member, more preferably an extruded metal member, most preferably an extruded aluminium member as in this example.
The multiple raised anti-slip portions 32 here are elongated strip portions, in this example straight and parallel strip portions formed during the extrusion process of the member 30.
20 Obviously the openings 25 here also a straight openings, e.g. formed by milling parallel straight slots through the wooden board 20.
As is preferred the anti-slip portions 32 extend transverse across the step, i.e. parallel to the front of the step.
25
The anti slip portions preferably protrude between 1 and 5 millimetres above the treading surface.
As is preferred the strip portions 32 have a width between 2 and 6 millimetres.
30
For fastening the step to the climbing product, here the step stool, the metal member 30 includes one of more fastening portions, in this example embodied as hinge portions for hinging the step to the step stool or part(s) thereof.
35 In this example the metal member 30 includes a first hinge portion 33 at the side of the front of the main body and a second hinge portion 34 at the side of the rear of the main body. The first hinge portion 33 here is adapted to receive a pivot shaft 2c of the frame, whereas the -5- rear hinge portion here is adapted to connect to one or more linkage members 8 of the step stool.
As is preferred, in particular for an extruded member 30, the one or more hinge or fastening 5 portions are formed as a tubular portion integral with the plate portion. Preferably when the antislip portions 32 are straight and parallel strips, the one or more tubular portions extend parallel to said antislip portions so as to allow their formation during the extrusion process. Obviously other extruded formations parallel to the antislip portions can also be envisaged.
10 The one or more extruded hinge portions can be machined when desired, e.g. to change the effective length of the hinge portions, e.g. to create two aligned hinge portions at a side of the metal plate.
In a plywood or other wooden version of the step main body it is possible to provide the main 15 body is provided with a generally transparent coating permitting the natural appearance of the wood to be displayed through the coating. On the other hand a colored paint can also be envisaged in combination with a wooden main body.
It is envisaged that the frame of the step stool can be of metal or wood, e.g. plywood.
20
As in the art the step stool is preferably portable so that a user can carry the step stool. In another embodiment the step stool may comprise wheels.
It is also envisaged that the step according to the invention can be employed in other 25 climbing products, e.g. a ladder, a loft-ladder, etc.
The climbing product may also be a stair in a building.
CLAUSES
30 1. A climbing product step forming a generally planar horizontal treading surface to support the feet of a human standing on said step, said step having main body of a wooden board with a front, a rear, a treading surface and a bottom, wherein the treading surface and the bottom are substantially planar and substantially parallel to each other, wherein a metal member is fitted to said main body, said metal member including a metal plate portion extending underneath the bottom of the main body and said metal member 35 -6- including multiple raised metal anti-slip portions, said anti-slip portions extending upward from the metal plate portion through corresponding openings in the main body, said anti-slip portions having a top end that protrudes above the treading surface of the main body.
5 2. A climbing product step according to clause 1, wherein the metal member is a monolithic member.
3. A climbing product step according to clause 1 or 2, wherein the metal member is an extruded metal member, preferably an extruded aluminium member.
10 4. A climbing product step according to one or more of the preceding clauses, wherein the multiple raised anti-slip portions are elongated strip portions.
5. A climbing product step according to clause 4, wherein the elongated strip portions 15 are parallel strip portions, e.g. wherein the elongated strip portions are straight, e.g.
substantially parallel to the front of the step.
6. A climbing product step according to one or more of the preceding clauses, wherein the anti-slip portions protrude between 1 and 5 millimetres above the treading surface.
20 7. A climbing product step according to clause 5, wherein the strip portions have a width between 2 and 5 millimetres.
8. A climbing product step according to one or more of the preceding clauses, wherein 25 the metal member includes one of more fastening portions adapted to fasten the step to the climbing product.
9. A climbing product step according to clause 8, wherein the metal member includes one or more hinge portions adapted to hinge the step to the climbing product.
30 10. A climbing product step according to clause 9, wherein the metal member includes a first hinge portion at the side of the front of the main body and a second hinge portion at the side of the rear of the main body.
35 11. A climbing product step according to clause 9 or 10, wherein each hinge portion is formed as a tubular portion integral with the plate portion.
-7- 12. A climbing product according to one or more of the preceding clauses, wherein the front of the main body is curved downwardly.
13. A climbing product step according to one or more of the preceding clauses, wherein 5 the wooden board is made of plywood.
14. A climbing product step according to one or more of the preceding clauses, wherein the main body is provided with a generally transparent coating permitting the natural appearance of the wood to be displayed through the coating.
10 15. A step stool including a step according to one or more of the preceding clauses 16. A step stool according to clause 15, comprising: 15 - a folding frame having a pair of front legs (2a,b) and a pair of rear legs (3a,b), said rear legs being coupled to the front legs for pivotable movement between an opened use position and a collapsed storage position, - an upper step (10) and one or more lower steps (11,12), each step (10,11,12) being 20 arranged between and coupled to the front legs (2a,b) for pivotable movement between a horizontal use position and a storage position, - a linkage member arrangement (7, 8) effecting simultaneous movement of the steps (ΙΟΙ 2) as the frame is folded to move between the use position and storage position, 25 wherein at least one of the steps is embodied according to one or more of the clauses 1-14.
17. A step stool according to clause 16, wherein the frame comprises a crossbar (9) extending between the rear legs (3a,b) and arranged so that a rear portion of the upper step 30 (10) rests on said crossbar (9) when said upper step is in its use position, the upper step (10) being provided with a manually releasable latch mechanism including a latch member (20) having a latch face (20a) that is arranged to catch under said crossbar (9) when the frame is folded to its use position so as to retain the step stool in said use position, 35 the latch member (20) being operable manually by a user to disengage the latch member (20) from the crossbar (9) and fold the frame to the storage position.
-8- 18. A staircase including a step according to one or more of the preceding clauses 1-14.
2001919-

Claims (18)

1. Trede voor een klimproduct, welke trede een in hoofdzaak vlak trede-oppervlak vormt om de voeten van een persoon die op de trede staat te ondersteunen, waarbij de trede een 5 hoofdlichaam heeft uit een houten plank met een voorzijde, een achterzijde, een trede- oppervlak en een onderzijde, waarbij het trede-oppervlak en de onderzijde in hoofdzaak vlak zijn en in hoofdzaak evenwijdig aan elkaar zijn, waarbij een metalen element aan het hoofdlichaam is aangebracht, welke metalen element 10 een metalen plaatgedeelte omvat dat zich onderlangs de onderzijde van het hoofdlichaam uitstrekt en welk metalen element is voorzien van meerdere omhoogstekende metalen anti-slip gedeelten, welke anti-slip gedeelten zich vanaf het metalen plaatgedeelte door overeenkomstige openingen in het hoofdlichaam naar boven uitstrekken, waarbij de anti-slip gedeelten een bovenste einde hebben dat boven het trede-oppervlak van het hoofdlichaam 15 uitsteekt.Claims 1. A step for a climbing product, which step forms a substantially flat step surface for supporting the feet of a person standing on the step, the step having a main body from a wooden board with a front, a rear, a the tread surface and a bottom side, the tread surface and the bottom side being substantially flat and being substantially parallel to each other, a metal element being arranged on the main body, which metal element 10 comprises a metal plate part located along the bottom side of the main body and which metal element is provided with a plurality of raised metal anti-slip portions, which anti-slip portions extend upwardly from the metal plate portion through corresponding openings in the main body, the anti-slip portions having an upper end that protrudes above the step surface of the main body 15. 2. Trede voor een klimproduct volgens conclusie 1, waarbij het metalen element een monolitisch element is.A step for a climbing product according to claim 1, wherein the metal element is a monolithic element. 3. Trede voor een klimproduct volgens conclusie 1 of 2, waarbij het metalen element een geextrudeerd metalen element is, bij voorkeur een geextrudeerd aluminium element.A step for a climbing product according to claim 1 or 2, wherein the metal element is an extruded metal element, preferably an extruded aluminum element. 4. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, waarbij de meerdere omhoogstekende metalen anti-slip gedeelten langwerpige 25 stripgedeelten zijn.4. A step for a climbing product according to one or more of the preceding claims, wherein the plurality of raised metal anti-skid portions are elongated strip portions. 5. Trede voor een klimproduct volgens conclusie 4, waarbij waarbij de langwerpige stripgedeelten evenwijdige stripgedeelten zijn, bijvoorbeeld waarbij de langwerpige stripgedeelten recht zijn, bijvoorbeeld evenwijdig aan de voorzijde van de trede. 30A step for a climbing product according to claim 4, wherein wherein the elongated strip sections are parallel strip sections, for example wherein the elongated strip sections are straight, for example parallel to the front of the step. 30 6. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, waarbij de anti-slip gedeelten tussen 1 en 5 millimeter boven het trede-oppervlak uitsteken.A step for a climbing product according to one or more of the preceding claims, wherein the anti-slip portions protrude between 1 and 5 millimeters above the step surface. 7. Trede voor een klimproduct volgens conclusie 5, waarbij de stripgedeelten een 35 breedte tussen 1 en 5 millimeter hebben. -10-7. Step for a climbing product according to claim 5, wherein the strip sections have a width between 1 and 5 millimeters. -10- 8. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, waarbij het metalen element een of meer bevestigingsgedeelten omvat die zijn ingericht om de stap een het klimproduct te bevestigen.A step for a climbing product as claimed in one or more of the foregoing claims, wherein the metal element comprises one or more mounting parts which are adapted to fix the step of the climbing product. 9. Trede voor een klimproduct volgens conclusie 8, waarbij het metalen element een of meer scharniergedeelten omvat die zijn ingericht om de trede scharnierbaar te bevestigen aan het klimproduct.A step for a climbing product according to claim 8, wherein the metal element comprises one or more hinge parts which are adapted to pivotally attach the step to the climbing product. 10. Trede vooreen klimproduct volgens conclusie 9, waarbij het metalen element een 10 eerste scharniergedeelte aan de voorzijde van het hoofdlichaam omvat en een tweede scharniergedeelte aan de achterzijde van het hoofdlichaam.10. A step for a climbing product according to claim 9, wherein the metal element comprises a first hinge portion at the front of the main body and a second hinge portion at the rear of the main body. 11. Trede voor een klimproduct volgens conclusie 9 of 10, waarbij elk scharniergedeelte is gevormd als een buisvormig gedeelte dat integraal is met het plaatgedeelte. 15A step for a climbing product according to claim 9 or 10, wherein each hinge portion is formed as a tubular portion that is integral with the plate portion. 15 12. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, waarbij de voorzijde van de trede naar beneden is gebogen.A step for a climbing product according to one or more of the preceding claims, wherein the front side of the step is bent downwards. 13. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, 20 waarbij de houten plank is gemaakt van multiplex.13. Step for a climbing product according to one or more of the preceding claims, wherein the wooden board is made of plywood. 14. Trede voor een klimproduct volgens een of meer van de voorgaande conclusies, waarbij het hoofdlichaam is voorzien van een in hoofdzaak doorzichtige coating die het mogelijk maakt dat het natuurlijke uiterlijk van het hout zichtbaar is door de coating. 25A step for a climbing product according to one or more of the preceding claims, wherein the main body is provided with a substantially transparent coating that makes it possible for the natural appearance of the wood to be visible through the coating. 25 15. Een trapje omvattende een trede volgens een of meer van de voorgaande conclusies.A staircase comprising a step according to one or more of the preceding claims. 16. Een trapje volgens conclusie 15, omvattende: 30. een vouwbaar frame met een paar voorpoten en een paar achterpoten, waarbij de achterpoten scharnierbaar zijn gekoppeld met de voorpoten om een scharnierbeweging mogelijk te maken tussen een geopende gebruikspositie en een ingeklapte opbergpositie, - een bovenste trede en een of meer lagere tredes, waarbij elke trede tussen de voorpoten is 35 geplaatst en daarme is gekoppeld om scharnierbaar te zijn tussen een horizontale gebruikspositie en een opbergpositie, -11- - een koppelsysteem dat een simultane beweging van de tredes tussen de gebruikspositie en de opbergpositie bewerkstelligt, Waarbij ten minste een van de tredes is uitgevoerd volgens een of meer van de conclusies 5 1-14.A ladder according to claim 15, comprising: 30. a foldable frame with a pair of front legs and a pair of rear legs, wherein the rear legs are hingedly coupled to the front legs to allow a hinged movement between an opened position of use and a collapsed storage position, upper step and one or more lower steps, each step being placed between the front legs and coupled thereto to be pivotable between a horizontal position of use and a storage position, a coupling system that allows simultaneous movement of the steps between the position of use and realizes the storage position, wherein at least one of the steps is made according to one or more of the claims 1-14. 17. Een trapje volgens conclusie 16, waarbij het frame een dwarsstang omvat, die zich uitstrekt tussen de achterpoten en die zo is opgesteld dat het achterste gedeelte van de bovenste trede op de dwarsstang rust als de bovenste trede zich in zijn gebruikspositie 10 bevindt, waarbij de bovenste trede is voorzien van een handmatig ontgrendelbaar grendelmechanisme dat een grendelelement omvat dat is ingericht om onder de dwarsstang te grijpen wanneer het frame naar zijn gebruikspositie wordt gevouwen om het trapje in die 15 gebruikspositie te houden, waarbij het grendelelement handmatig bedienbaar is bij de gebruiker om het grendelelement van de dwarsstang te ontgrendelen en het frame naar de opbergstand te vouwen.A stepladder according to claim 16, wherein the frame comprises a cross bar extending between the hind legs and arranged so that the rear portion of the upper step rests on the cross bar when the upper step is in its position of use 10, the upper step is provided with a manually unlockable locking mechanism which comprises a locking element which is adapted to grip below the crossbar when the frame is folded to its position of use to hold the ladder in that position of use, the locking element being manually operable by the user to unlock the cross bar locking element and fold the frame to the storage position. 18. Een trap voorzien van een trede volgens een of meer van de voorgaande conclusies 1-14.A staircase provided with a step according to one or more of the preceding claims 1-14.
NL2001919A 2008-08-26 2008-08-26 A climbing product step. NL2001919C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL2001919A NL2001919C (en) 2008-08-26 2008-08-26 A climbing product step.
EP09168601A EP2159368B1 (en) 2008-08-26 2009-08-25 A climbing product step
AT09168601T ATE519917T1 (en) 2008-08-26 2009-08-25 CLIMBING PRODUCT LEVEL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2001919A NL2001919C (en) 2008-08-26 2008-08-26 A climbing product step.
NL2001919 2008-08-26

Publications (1)

Publication Number Publication Date
NL2001919C true NL2001919C (en) 2010-03-11

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ID=41334417

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2001919A NL2001919C (en) 2008-08-26 2008-08-26 A climbing product step.

Country Status (3)

Country Link
EP (1) EP2159368B1 (en)
AT (1) ATE519917T1 (en)
NL (1) NL2001919C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191001754A (en) * 1910-01-24 1910-07-14 John Thomas Simpson Improvements in Treads for Floors, Steps and the like.
US2113462A (en) * 1936-06-04 1938-04-05 Wees Russell J De Safety tread and method of forming the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190717324A (en) * 1907-07-29 1908-04-30 Thomas William Corbin Improved Non-slipping Tread for Stairs and the like
GB106030A (en) * 1916-07-22 1917-05-10 Charles Henry Freeman Improvements in or connected with Non-slipping Flooring, Steps, Stairs, or the like.
DE7523103U (en) * 1975-07-19 1976-02-19 Spimeta B.V., Harkema (Niederlande) HOUSEHOLD STOOL WITH STEPS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191001754A (en) * 1910-01-24 1910-07-14 John Thomas Simpson Improvements in Treads for Floors, Steps and the like.
US2113462A (en) * 1936-06-04 1938-04-05 Wees Russell J De Safety tread and method of forming the same

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Publication number Publication date
EP2159368A1 (en) 2010-03-03
ATE519917T1 (en) 2011-08-15
EP2159368B1 (en) 2011-08-10

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