EP0408163A2 - Equipement pour aire de jeu - Google Patents

Equipement pour aire de jeu Download PDF

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Publication number
EP0408163A2
EP0408163A2 EP90250179A EP90250179A EP0408163A2 EP 0408163 A2 EP0408163 A2 EP 0408163A2 EP 90250179 A EP90250179 A EP 90250179A EP 90250179 A EP90250179 A EP 90250179A EP 0408163 A2 EP0408163 A2 EP 0408163A2
Authority
EP
European Patent Office
Prior art keywords
post
plastic
children
profile
wooden
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90250179A
Other languages
German (de)
English (en)
Other versions
EP0408163A3 (en
Inventor
Otto Groh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GROH GmbH
Original Assignee
GROH GmbH
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 GROH GmbH filed Critical GROH GmbH
Publication of EP0408163A2 publication Critical patent/EP0408163A2/fr
Publication of EP0408163A3 publication Critical patent/EP0408163A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B9/00—Climbing poles, frames, or stages
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2208/00—Characteristics or parameters related to the user or player
    • A63B2208/12—Characteristics or parameters related to the user or player specially adapted for children

Definitions

  • the invention relates to a children's play device of the type specified in the preamble of claim 1 and a method for producing a post element for such a children's play device.
  • the invention has for its object to provide a post for anchoring children's play equipment, which is superior in its properties in terms of rot resistance wooden post, but is otherwise equivalent to the wooden post.
  • the invention is based on the knowledge that posts made of recycled plastic and at least in a connection area with a metal core can be dimensioned and machined in such a way that the properties of such posts almost correspond to those of wooden posts. Only the negative rotting properties of wood no longer occur with recycled plastic with a metal core.
  • Recycled plastic consists of plasticized thermoplastic materials and non-plasticized granular components such as polyamides, impurities and the like.
  • the production of this recycled plastic which is made from waste plastics or waste plastics, requires only a fraction of that for the amount of energy required to manufacture new plastics.
  • the cross-sectional shapes of the metal core and the plastic shell correspond in accordance with a preferred embodiment of the invention. This is particularly advantageous with regard to the method according to the invention for producing the posts, which is described below.
  • the metal core is preferably designed as a hollow tube with rectangular or square cross-sectional contours.
  • the upper end of the post is preferably covered with a cap made of recycled plastic.
  • the cap can be screwed directly into a metal core with a round cross section. If the metal core has an angular cross-section, the cap can be clamped into the cavity of the metal core by means of a corresponding tapering projection.
  • the cover cap protrudes on all sides of the post, so that the effects of the different thermal expansion of the metal core and the plastic coating are hidden.
  • a wooden cross or diagonal beam is attached to such a post by means of the usual connecting elements, in particular by means of threaded bolts and nuts.
  • threaded bolts and nuts In the case of a post with very thin-walled, sheet-like metal cores, however, there is a risk of the post being compressed due to the strong transverse forces during the tightening of the nut. In this case, measures to increase stability are provided.
  • a locking or expanding sleeve that can be plugged onto the threaded bolt is provided, which prevents compression of the cross section of the post element.
  • a locking sleeve with a length essentially corresponding to the post diameter acts as a spacing element between the head of the threaded bolt and the nut.
  • the locking sleeve can be provided at its ends with a collar or / and a washer supported on the sleeve or two such washers.
  • an expansion sleeve is provided with lamellar expansion elements which can be expanded from the sleeve diameter and which are supported against two mutually opposite inner surfaces of the metal core.
  • the expansion elements are preferably designed with projections projecting into the hollow cross section of the sleeve.
  • the pedestals of the children's play device are constructed in two parts, the part made of recycled plastic being in the ground and connected to it in a surface area by a wooden profile of the same cross-section, the connection being established by a connection profile forming the metal core in this area. This results in a homogeneous appearance with an overall design that is resistant to rot despite the lack of impregnation.
  • This connecting profile is preferably made of steel, since it is suitable for creating a stable connection between plastic and wooden elements of various properties with regard to material and / or cross-sectional shape.
  • connection profile arranged in a recess in the end faces of the plastic and wooden elements.
  • the connection profile can be firmly connected to the wooden element and locked by at least one cross hole in the connection profile.
  • the wooden element has at least one hole which is flared at the ends. A screw is screwed into this hole, passing through the cross hole in the connection profile is performed. A cap covers the flared hole on the surface of the wooden element. This reduces the risk of injury from the screw connection and the connection between the plastic and wooden element is not visible.
  • the connecting profile is preferably made of iron and can be designed, for example, as a round bar or as a flat iron.
  • the width of the flat iron can either match the width of the plastic and wooden elements to be connected or be smaller, so that the flat iron does not appear on the surface.
  • the recesses are milled or drilled in the wood and plastic elements, for example.
  • the connecting profile can be clamped, screwed or glued to the plastic element.
  • the connecting profile is preferably heated before being introduced into the plastic element and then pressed into the recess, which preferably has a smaller cross section than the anchoring profile. It is also possible to press the lower part of a connecting profile, which is to be introduced into the plastic element, directly into a plastic element without a recess or to cast it in immediately during the production of the plastic element. In the latter case, the plastic element can already be connected to the anchoring profile at the factory, so that, in this way, the assembly effort at the location is reduced. Regardless of the type of insertion, the connection is caused by melting and subsequent hardening The plastic in the area of the connecting profile is created, resilient and safe.
  • the upper part of the connecting profile to be inserted in the wooden element has at least one transverse bore. This transverse bore can be provided with a thread in order to further increase the strength of the connection in an advantageous manner.
  • connection between plastic and wooden elements is made by at least two profiles which are arranged on opposite parts of the post and wooden beam elements in the connection area and which each have at least one transverse bore through which a side into the wooden beam or protrudes into the post element driven bolt manufactured. This results in a connection area that is particularly resilient with regard to transverse forces.
  • the best possible fit between the profiles and the plastic element is preferably taken into account even before assembly in such a way that the profiles are firmly connected to the plastic element.
  • the post is advantageously anchored in the ground only after the profiles have been installed on the above-ground plastic element end.
  • two profiles are connected to one another by means of a base plate which runs between the end faces of the wood and plastic elements.
  • the profiles can only partially or completely enclose the post, which means that Depending on the profile shape, post shoes or double plug-in shoes are formed.
  • a projecting, in particular mandrel or flat profile-like connecting element is attached to the surface of the base plate of the profile facing the wooden element.
  • the resilience of such a connection is additionally improved, in particular with regard to transverse forces.
  • the wooden element is placed on the profile with the protruding connecting element.
  • the connecting element either acts directly as a spit, which pierces the end face of the wooden element when it is rammed in, or the wooden element is already provided with a hole into which the anchoring element engages. In the latter case in particular, an additional locking of the connecting element is advantageous.
  • the connecting element is preferably provided with at least one transverse bore through which the locking bolt to be driven laterally through the profile into the wooden element projects. Because the bolt locks the profile and the anchoring element, and both are attached at the same height relative to the base plate, it is easy to find the transverse bore in the connecting element.
  • the profiles and the connecting element preferably consist of a metal, in particular iron material, because of the required hardness.
  • a metal in particular iron material
  • metallic base material there is advantageously the possibility of the connection between the connecting element and the profile than by shrinking.
  • a non-impregnated wooden element with a plastic element is axially connected to one another in a simple but secure manner.
  • the post ensures a high degree of stability due to the connections according to the invention, in particular with regard to torsional and transverse forces.
  • Such posts consisting of a plastic element as the lower part and a wooden element as the upper part can also be used as a replacement for weathered and / or no longer stable posts.
  • the game landscape shown in FIG. 1 essentially consists of a staircase 1, several play platforms 2, an add-on slide 3, two add-on swings 4, a hanger 5, a vertical climbing riser 6 and several add-on corners 7 at different heights.
  • a total of seventeen anchorable posts 8 of different lengths are required for this playground system.
  • the surface of the posts 8 is made of recycled plastic 9 and its color and structure are matched to the assemblies 1 to 7, which are predominantly made of wood, as is shown in more detail below using the detailed drawings.
  • FIG. 2 The basic structure of a post is shown in FIG. 2.
  • a metal core 10 in the form of a hollow box section with a square cross section is surrounded by a layer of recycled plastic 9, the thickness of which is less than the side length of the box section.
  • Such a post 8 for children's play equipment is much more durable than a wooden post. There is no risk of rotting or rotting for the parts of the post 8 that are anchored in the ground and are therefore difficult to control or repair.
  • 8. Toward stable and firm achieved by the metal core 10, in particular iron core.
  • the plastic surface of the post 8 is provided with pigments for protection against the UV radiation from sunlight. The pigmentation and the workability of the surface contribute to the fact that the posts 8 can be structured like a wood.
  • Figure 3 shows a sectional view of the screwing of a post 8 with a cross or diagonal beam 11 made of wood.
  • a beam 11 can be, for example, the railing 12 (FIG. 1) of the staircase 1, a support beam 13 (FIG. 1) for a platform 2 between two posts 8 or a beam 14 (FIG. 1) for hanging a swing 4.
  • the sheet metal of the metal core 10 and the recycling plastic 9 can be drilled through, the use of threaded bolts 15 and nuts 16 for fastening a wide variety of transverse or diagonal beams 11 to the post 8 is possible, as is the case when two wooden parts are screwed together.
  • the nut 16 is preferably covered with a round cap 17 made of plastic. In addition to the aesthetic effect, extensive protection of the metal against moisture and other weather influences is also achieved.
  • the expanding sleeve 18 shown as an individual part in FIG. 4a is provided with two rings of lamellae 19 and 20 which are bent up like leaf springs and which can be produced from U-shaped incisions in the sleeve 18.
  • the distance between the two lamellar rings corresponds to the inner diameter of the hollow metal core 10.
  • the lamellas 19 can be pressed together manually or with special pliers.
  • the lamellae 20 compress themselves by their orientation during the driving in of the expansion sleeve 18. Manual support or an aid is not required.
  • the lamellae 19 and 20 spread apart again within the hollow iron core 10 due to their leaf spring action. In this way, the distance between opposite walls of the hollow metal core 10 is kept constant and a compression of the post 8 by tightening the nut 16 when screwing the post 8 to a crossbeam 11 is no longer possible even with very thin sheet-like metal core walls.
  • Figure 4b shows a second variant of an embodiment of an expansion sleeve.
  • the sleeve is again provided with two rings of U-shaped slats 21 and 22 cut out of the sleeve wall. However, these slats 21 and 22 are approximately folded inwards in the area of half their length.
  • FIG. 5 shows a third variant of a screw connection between a post 8 and a transverse or diagonal beam 11.
  • means are also provided here for avoiding the compression of the post 8.
  • a support sleeve 23 with a washer 24 that crosses the entire post 8 is used here.
  • the inner diameter of the support sleeve 23 and the bore diameter of the washer 24 are slightly above the bolt diameter, so that the threaded bolt 15 can be inserted easily.
  • the support sleeve 23 is provided at one end with a narrow support collar 25.
  • the distance between the collar 25 and the disk 24 corresponds exactly to the diameter or the thickness of the post 8 minus the depth of a depression 26 for the disk 24.
  • the depression 26 ensures that the wooden beam 11 to be connected to the post 8 is frictionally engaged abuts the post 8. A further tightening of the nut 16 and thus a compression of the hollow post 8 is not possible, since the beam 11 presses against the washer 24, which in turn rests on the end of the support sleeve 23 opposite the end of the collar and consequently cannot retreat.
  • the support sleeve 23 shown in FIG. 5 is preferably dimensioned such that the compression is only prevented when the adhesion is sufficient.
  • their length is slightly less than the length of the side edge of the post element 8, so that a slight compression is accepted, the associated compression force corresponding to approximately such a force that must be exerted between the elements 8 and 11 to be connected in order to achieve the necessary one To secure friction and thus the strength of the overall structure.
  • FIG. 6 shows the connection of a conventional wooden post 27 to a post 8 having recycled material.
  • the outer contours of the two coaxially aligned posts 8 and 27 correspond on the one hand with one another and on the other hand with the inner contours of a connecting part 28 which encloses the two end sections and forms a box profile.
  • the two end sections are each connected to the connecting part 28 by means of at least one threaded bolt 29 or 30 and a corresponding nut 31 or 32. So that the hollow plastic / metal post 8 is not deformed by the screw connection, the bolt 29 is in turn inserted through a support sleeve 34 provided with a collar 33 and a washer 35.
  • the support sleeve 34 does not necessarily have to have a collar 31, since the head of the threaded bolt 15 and the nut 16 can also be supported directly on the end faces of the sleeve.
  • a collarless support sleeve can also be pushed through the plastic / metal post 8 within the connecting part. Their length then corresponds exactly to the length of a side edge of the post 8.
  • the connecting part 28 designed as a box profile is guided over the end sections of the plastic / metal post 8 and the wooden post 11 after the support sleeve has been inserted.
  • FIG. 7 shows a cover cap 36 as the upper end for a round or square plastic / metal post 8.
  • the cap 36 is provided on its underside with a projection 37 which is tapered in the direction of insertion and can therefore be easily inserted into the cavity of the iron core 10. Since it has a slight excess in relation to the inside cross section of the box section, it is held by means of a clamp fit.
  • the cap edge projects far enough beyond the post 8 to cover a gap caused by different thermal expansions of the composite material, which gap occurs when the length dimension of the metal core 10 is greater than that of the plastic jacket 9.
  • the post shown in FIG. 8 of a further exemplary embodiment of the children's play device according to the invention essentially consists of an at least partially se to be anchored in the ground element 101 made of recycled plastic, a wooden element 105 and a round metal rod as a connecting profile 102.
  • the connecting profile 102 is heated when introduced into the element 101 made of recycled plastic and either inserted into a recess 103 in the plastic element 101 or pressed into the plastic element 101.
  • the cutout 103 preferably has a smaller cross section than the connecting profile 112 in order to enable an even better connection, which arises from the melting and the subsequent hardening of the plastic in the region of the anchoring profile 112.
  • the end face 106 of the wooden element 105 is formed with a recess 107 which receives the upper part of the connecting profile 112.
  • This upper part of the connecting profile 112 to be inserted in the wooden element 105 is provided with two transverse bores 115 through which a screw connection 110 is guided in order to firmly connect the wooden element 105 to the connecting profile 112. This connection is explained in detail with reference to FIG. 2.
  • a perforated plastic plate 16 is arranged between the wooden and the plastic element 105 or 101. From this area, the water present in or on the surface of the wooden element 105 can run off freely. This prevents the post from rotting.
  • the wooden element 105 corresponds to the transverse bores 115 in the connecting element with bores 109 which are before or after the introduction of the connecting profile 112 into the wooden element 105 can be provided is provided.
  • the bores 109 are flared at both ends and are suitable for screwing in countersunk screws 110.
  • the widened bore 109 on the surface of the wooden element 105 is provided with a cap 111.
  • FIGS. 10 and 11 show two further embodiments of a connection profile 112.
  • the connecting profile 112 is designed as a flat iron, which is arranged centrally in the post and is firmly connected to the plastic 101 and wooden elements 105 by means of two pairs of screw connections 110.
  • the width of the flat iron is smaller than the width of the post elements 1, 5, so that it does not appear on their surfaces 104, 108 either.
  • the anchoring profile 12 is also designed as a flat iron, but its width corresponds to that of the post elements 101, 105, so that the flat iron in this embodiment lies flush with the surfaces 104, 108 of the posts 101, 105.
  • FIG. 12 shows an embodiment of the connection as an H-shaped profile 120.
  • the profile 120 has a base plate 25 and two legs 121 resting on the surfaces of the plastic and the wooden element.
  • the lower inner shape of the profile 120 is adapted to the contours of the connection-side end section of the plastic element 101, so that the profile 120 sits firmly on the plastic element 101. Accordingly, the upper inner part of the profile sits on the connection-side end section of the Wood element 105.
  • connection element 128 extends axially from the upper surface of the base plate 125 of the profile 120 and has two bores 133, protrude through the two screws 127 screwed transversely into the wooden element 105.
  • the screws 127 are also passed through the bores 26 in the two opposing profile legs 121.
  • FIGS. 13a and 13b show cross sections through the wooden element 105 along the line A-A according to FIG. 12.
  • a wooden element 105 with a rectangular cross section is shown in FIG. 13a and with a round cross section in FIG. 13b.
  • the profile 120 is designed as a post shoe and only partially surrounds the surface of the wooden element 105.
  • the legs 121 of the profile 120 rest only on two sides of the wooden element 105 and in the round version the legs 121 of the profile 120, the length of which is approximately a quarter of the total circumference, lie in partial areas.
  • the profile is designed as an H-shaped double shoe 122 in FIGS. 14a and 14b.
  • the legs of the profile form a collar 121 which, in the case of a rectangular design of a wooden element 105, already precludes torsion or twisting of the wooden element 105 within the double shoe 122.
  • the connecting element 128 can accordingly be arranged centrally to the base plate 125.
  • the diameter of the plastic element 101 in the region of the end enclosed by the collar 121 is smaller than that of the wooden element 105.
  • the annular end face of the collar part on the plastic element side can also serve as a support for a shoulder of the plastic element 101.
  • the diameter of the plastic element 101 below the shoulder is preferably equal to the outer diameter of the double plug shoe 122, so that a smooth, stepless transition from the plastic element 101 to the double plug shoe 122 is produced.
  • the plastic element 101 is then preferably screwed into the double plug-in shoe 122, the shoulder forming a screw stop.
  • the additionally inserted screws 127 which can also be arranged in a crosswise offset and are guided through the collar 121 and the connecting element 128, contribute to a higher stability of the connection.
  • FIG. 16a and 16b Flat profiles are provided in FIG. Two separate flat bars 117, 118, which rest on two sides 108 of a rectangular wooden element 105 or on partial areas 108 of a round wooden element 105, are connected to one another by means of screws 127, as can be seen in FIGS. 16a and 16b.
  • the connecting element is designed as a round profile 119 and thus encloses the wooden element 105 and the plastic element 101.
  • an angle iron 123 is provided as a connecting profile. This one is arranged on the base plate 125 netes connecting element 128, which protrudes into the wooden element 105 and in the plastic element 101 and are fastened on both sides of the base plate 125 with two screws 127, which are guided through the holes 133 in the connecting element 128.
  • the angle iron 123 can either rest against only a part of the surfaces 104, 108 according to FIGS. 20a and 20b, or may be designed as a half-ring profile 124 according to FIGS. 21a and 21b.
  • the half-ring profiles 124 are much more stable than the simple angle iron 123 and the wooden elements 105 can be left out laterally in order to achieve a flush surface in the area of the connection.
  • the embodiment of the invention is not limited to the preferred exemplary embodiment specified above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different types.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP19900250179 1989-07-13 1990-07-13 Playground equipment Withdrawn EP0408163A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893923413 DE3923413A1 (de) 1989-07-13 1989-07-13 Kinderspielgeraet
DE3923413 1989-07-13

Publications (2)

Publication Number Publication Date
EP0408163A2 true EP0408163A2 (fr) 1991-01-16
EP0408163A3 EP0408163A3 (en) 1991-06-26

Family

ID=6385092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900250179 Withdrawn EP0408163A3 (en) 1989-07-13 1990-07-13 Playground equipment

Country Status (2)

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EP (1) EP0408163A3 (fr)
DE (1) DE3923413A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466292A1 (fr) * 1990-07-13 1992-01-15 GROH GmbH Poteaux pour l'ancrage d'équipement en bois pour aire de jeu
EP0496482A1 (fr) * 1991-01-25 1992-07-29 GROH GmbH Dispositif pour aire de jeu ou meubles d'extérieur
EP0502266A1 (fr) * 1991-02-22 1992-09-09 GROH GmbH Système d'échaufaudage
FR2821784A1 (fr) * 2001-03-09 2002-09-13 Servi Sport Disposition de fixation d'une pince
EP1892355A1 (fr) * 2006-08-25 2008-02-27 HAGS Aneby AB Base adaptée pour allonger des objets en toute sécurité sur une surface de base

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9114562U1 (de) * 1991-11-22 1992-02-06 Kompan A/S, Ringe Gründungspfahl

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555361A1 (de) * 1975-12-09 1977-06-23 Gerret Paulmann Wassersportgeraet
US4447055A (en) * 1982-07-14 1984-05-08 Miracle Recreation Equipment Company Playground equipment with wooden timbers having internal fasteners
DE3544544A1 (de) * 1985-11-22 1987-05-27 Rochus C Ruettnauer Profilelement aus recycling-kunststoff
EP0312205A1 (fr) * 1987-10-14 1989-04-19 Hunter Douglas Industries B.V. Support pour poteau métallique
DE3902123A1 (de) * 1988-03-17 1989-10-05 Hans Dieter Spirk Leitpfosten mit bodenanker
DE3839369A1 (de) * 1988-11-22 1990-05-23 Gruenzig Spielgeraete Verbindungselement und verfahren zum verbinden von voll- oder leimholzbalken in gleicher ebene

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555361A1 (de) * 1975-12-09 1977-06-23 Gerret Paulmann Wassersportgeraet
US4447055A (en) * 1982-07-14 1984-05-08 Miracle Recreation Equipment Company Playground equipment with wooden timbers having internal fasteners
DE3544544A1 (de) * 1985-11-22 1987-05-27 Rochus C Ruettnauer Profilelement aus recycling-kunststoff
EP0312205A1 (fr) * 1987-10-14 1989-04-19 Hunter Douglas Industries B.V. Support pour poteau métallique
DE3902123A1 (de) * 1988-03-17 1989-10-05 Hans Dieter Spirk Leitpfosten mit bodenanker
DE3839369A1 (de) * 1988-11-22 1990-05-23 Gruenzig Spielgeraete Verbindungselement und verfahren zum verbinden von voll- oder leimholzbalken in gleicher ebene

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466292A1 (fr) * 1990-07-13 1992-01-15 GROH GmbH Poteaux pour l'ancrage d'équipement en bois pour aire de jeu
EP0496482A1 (fr) * 1991-01-25 1992-07-29 GROH GmbH Dispositif pour aire de jeu ou meubles d'extérieur
EP0502266A1 (fr) * 1991-02-22 1992-09-09 GROH GmbH Système d'échaufaudage
FR2821784A1 (fr) * 2001-03-09 2002-09-13 Servi Sport Disposition de fixation d'une pince
EP1892355A1 (fr) * 2006-08-25 2008-02-27 HAGS Aneby AB Base adaptée pour allonger des objets en toute sécurité sur une surface de base

Also Published As

Publication number Publication date
DE3923413A1 (de) 1991-01-24
EP0408163A3 (en) 1991-06-26

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