EP2711141B1 - Collapsible assembly table - Google Patents

Description

The invention relates to a mounting table, which can be used in particular on construction sites.

The US 2009/0145338 A1 shows a mounting table with a worktop to which on one side two legs and opposite a tool container are pivotally mounted. The worktop does not touch the ground in the transport state, ie the table stands exclusively on the container.

The US 2005/0035517 A1 discloses a workbench with legs pivotally mounted on a countertop which intersect in an X-shape and are pivotally and slidably coupled together in a hinge.

The US 4,191,111 discloses a worktable with four legs (individually) foldable into a cavity at the bottom of the table top. In the erected state, the legs of a pair of legs are braced against each other and against the table top with inclined supports. A direct coupling of all four legs with each other does not take place.

The GB 2 356 597 A describes a multi-part workbench with a main beam, which stands on two A-shaped leg pairs with height-adjustable feet. The pairs of legs are coupled together by a rod and against the underside of a support element pivotable. An optional attachment table also has two height-adjustable pairs of legs.

The DE 26 17 800 describes a collapsible work table with two pivoting leg pairs, which are connectable at its lower end via two tie rods connectable centrally under the table. The clamping pressure can be varied via an adjusting screw in the coupling region of the tie rods, the pairs of legs are pressed against attacks of the table top. When folded, the pairs of legs should be locked by holders on the table top.

The invention had the object of providing an easy to handle assembly table, which has sufficient stability and on the other hand can be easily transported.

This object is achieved by a collapsible mounting table according to claim 1. Advantageous embodiments are contained in the subclaims.

• Eine Arbeitsunterlage, welche entsprechend dem geplanten Einsatzgebiet des Montagetisches ausgelegt sein kann. Typischerweise weist die Arbeitsunterlage eine Platte und gegebenenfalls einen daran angebrachten stabilisierenden Rahmen auf.
• Einen ersten, schwenkbar an der Arbeitsunterlage angeordneten Träger (d. h. eine Einrichtung, welche die Arbeitsunterlage in einer gewünschten Arbeitshöhe über dem Boden trägt).
• Einen zweiten, schwenkbar an der Arbeitsunterlage angeordneten Träger.

The collapsible assembly table according to the invention contains the following components:

• A work document, which can be designed according to the planned area of application of the assembly table. Typically, the work pad has a plate and optionally a stabilizing frame attached thereto.
• A first support pivotally mounted on the work support (ie, a device which supports the work support at a desired working height above the ground).
• A second, pivotally mounted on the work support carrier.

In this case, the two carriers mentioned should be adjustable between a "build-up state" (the support or the mounting table), in which they protrude from the work support (substantially perpendicular) and carry them, as well as a "transport state" (the carrier or the mounting table ), in which they are attached to the working document.

Due to the swiveling supports, the assembly table can be compactly compacted when not in use so that it can be easily transported and stored in a space-saving manner.

Typically, the two carriers - except on the work surface - are not mechanically coupled to each other during their pivoting movement.

According to a first preferred embodiment of the described assembly table whose support are arranged or their swivel range is designed so that the mounting table in the transport state on the work support on the one hand and the first carrier on the other hand (stable) can stand (with substantially vertically extending work support). In other words, the work support and the first support together provide support points for a stable state of the assembly table in its folded transport state. Preferably, the feet of the first carrier, which have ground contact in the body condition, also form the bases in the transport state.

It should be noted at this point that the roles of the "first carrier" and the "second carrier" are usually symmetrical or exchangeable. Therefore, all statements which are made for one of the carriers apply analogously to the other carrier, unless explicitly stated otherwise.

Related to the above embodiment, this means that additionally or alternatively, the second carrier can be designed so that the mounting table in the transport state can stand on him and the work surface. Furthermore, optionally, the support points of the two carriers can be arranged so that the assembly table in the transport state can simultaneously stand on them all (as well as the work support).

Since the carriers lie in the folded transport state on the work support, typically results in a relatively small footprint in the above-described case of parking on the work base and the first carrier. In order to ensure a sufficiently stable state, the work support may therefore optionally have a stop for the first carrier, through which an enlarged footprint is generated in the transport state. This is achieved, for example, in that the stop prevents too tight a contact of the first carrier against the mounting surface.

According to another embodiment of the assembly table according to the invention at least one of the carrier (preferably the first carrier) at least one wheel rotatably arranged so that it has no ground contact when standing of the assembly table in the body condition. In other words, the assembly table is stable in the body state on immobile foot points of the wearer. At the same time, however, in other positions, for example, when lifting or tilting the mounting table and / or in the folded transport condition, a ground contact of the wheel can be made quickly, so that the table can be moved in a convenient way to another location.

If the assembly table is designed so that it can stand on the work support and the first support in the folded transport state, said at least one wheel is advantageously arranged on the first support so that it has no ground contact when standing in the transport state. In other words, the assembly table can be stably parked on immovable bases of the work surface and the first carrier even in the folded transport state. At the same time, however, the possibility exists for the transport state that can be made by a change in position, such as a slight tilting of the mounting table, ground contact of the wheel to make the mounting table mobile.

The first and the second carrier of the mounting table are in the state of construction advantageously via a clamping device coupled to give the table sufficient stability. The tensioning device can, for example include one or more rods, which connect the foot portions of the carrier together. As a rule, the pivotability of the carrier is temporarily canceled by the tensioning device.

The above-mentioned tensioning device (or at least a part thereof) preferably serves in the transport state of the assembly table as a handle on which the assembly table can be grasped and with which it can be moved. Such a handle is particularly desirable in connection with embodiments in which the assembly table is mobile by the presence of (at least) one wheel. The use of the clamping device for coupling the carrier in the body state or as a handle in the transport state has the advantage that weight is saved by the use of a part in a dual function on the one hand. On the other hand, properties of the clamping device, such as, for example, a stable and typically movable mounting on a carrier, also represent advantageous properties of a handle.

In order to limit the length of the clamping device in the inactive state, this preferably contains (at least) two sections, of which the first is attached to the first carrier and the second to the second carrier. Typically, these sections are pivotally mounted on the carriers so that they can be pivoted when not in use in a non-standing position. One of these sections may further constitute the above-mentioned handle.

In order to connect the said sections in the structural state with one another, the first section can optionally have a displaceably movable mandrel, which engages in the structural state in a corresponding recess of the second section. In this way, a stable coupling can be produced, which almost snaps in by itself when setting up. During disassembly, it is only necessary to retract the mandrel (for example via a lever attached thereto) into the first section in order to release the connection between the sections.

As explained, in the assembly table according to the invention, the first and the second carrier are pivoted from the build-up state in which they protrude from the work support into the transport state in which they bear against the work support. According to a preferred embodiment of the invention, these pivoting movements are not completely free or independent of each other, but rather they take place in a common pivot space such that the last pivoted carrier limits the free pivoting of the already transferred in the transport state carrier. This has the advantage that unintentional unfolding of the first pivoted carrier is prevented back into the set position by the last pivoted carrier.

In an advantageous embodiment of the construction described above, the first pivoted carrier on a handle on which the mounting table can be taken in the transport state, while the last pivoted carrier has at least one wheel on which the mounting table can be driven in the transport state. By lying on this wheel weight is then prevented in the transport state pivoting of this carrier, whereby at the same time a movement of the carrier is prevented with the handle. In other words, the carrier is fixed in the transport state by a self-locking of the carrier without further fixing means (such as Velcro straps, snap locks or the like).

In another development of the invention, the assembly table includes a readjustment device with which the end position of the first carrier and / or the second carrier (in relation to the work support) reached in the setup state can be adjusted. Especially in connection with a clamping device of the type described above, it is possible in this way, over the life of the assembly table away constantly to guarantee high stability by a taut tension of the carrier. If, after prolonged use of the assembly table, a too great play in the movable components occurs and the stability of the stand is compromised, then a stable seat can be restored quickly by adjusting the readjusting device.

There are numerous possibilities for the design of the readjusting device. In particular, it may contain an adjusting screw against which the carrier in question in the build-up state (indirectly or directly) strikes, the exact stop position can be adjusted by turning the screw. Typically, the abutment will be done indirectly, for example, by providing a stop plate between the carrier and the adjusting screw, which has sufficient strength to absorb the resulting high forces.

The exact structure of the first carrier or the second carrier can vary within wide limits. For example, the carrier could be formed as solid plates. In a preferred embodiment, the first carrier and / or the second carrier comprises two legs extending substantially parallel (i.e., at an angle, which is typically less than 30 °) which are pivotally mounted to the work pad and are typically rod-shaped.

The above-mentioned legs of a single carrier can, in principle, be movable independently of one another. Preferably, however, they are coupled to each other via at least one crossbar, so that they kinematically form a rigid unit. The crossbar is typically located near the feet of the legs to achieve the highest possible stability.

If both the first and the second carrier each contain legs, the distance of these legs within a carrier is preferably selected so that the legs of the first carrier in the transport state between the legs of the second carrier can lie or vice versa. By such a nested position of the legs, the thickness of the folded assembly table can be reduced and its space requirements are thus minimized.

Fig. 1

eine Seitenansicht im Aufbauzustand;

Fig. 2

eine perspektivische Ansicht von unten im Aufbauzustand;

Fig. 3

eine Seitenansicht im Aufbauzustand nach Lösen der Spanneinrichtung;

Fig. 4

eine perspektivische Ansicht eines Zwischenzustands des Zusammenlegens nach Verschwenken des zweiten Trägers;

Fig. 5

eine perspektivische Ansicht des darauffolgenden Zwischenzustands nach Verschwenken eines Teilstücks der Spanneinrichtung;

Fig. 6

eine perspektivische Ansicht im zusammengeklappten Zustand;

Fig. 7

eine Seitenansicht im zusammengeklappten Zustand;

Fig. 8

eine Draufsicht im zusammengeklappten Zustand;

Fig. 9

einen Schnitt durch die Spanneinrichtung im gekoppelten Zustand;

Fig. 10

eine perspektivische Ansicht des Kopplungsbereiches der Spanneinrichtung;

Fig. 11

einen Schnitt durch die Nachjustiereinrichtung im Aufbauzustand.

In the following, the invention will be explained in more detail with the aid of the figures with reference to an exemplary embodiment. From the exemplary dargstellten mounting table shows

Fig. 1

a side view in the body state;

Fig. 2

a perspective view from below in the construction state;

Fig. 3

a side view in the body state after release of the clamping device;

Fig. 4

a perspective view of an intermediate state of the folding after pivoting of the second carrier;

Fig. 5

a perspective view of the subsequent intermediate state after pivoting a portion of the clamping device;

Fig. 6

a perspective view in the folded state;

Fig. 7

a side view in the folded state;

Fig. 8

a plan view in the folded state;

Fig. 9

a section through the clamping device in the coupled state;

Fig. 10

a perspective view of the coupling region of the clamping device;

Fig. 11

a section through the Nachjustiereinrichtung in the body state.

• Eine Arbeitsunterlage 130, welche hier aus einer ebenen und ganzflächig geschlossenen Arbeitsplatte 131 sowie darunter befindlichen Rahmenteilen 132 aus Metall besteht. Je nach Anwendungsfall könnte diese Arbeitsunterlage 130 auch anders ausgestaltet werden.
• Ein erster Träger 110, welcher schwenkbeweglich um eine Drehachse D1 an der Arbeitsunterlage 130 gelagert ist. Der Träger besteht im dargestellten Beispiel aus zwei im Wesentlichen parallel verlaufenden und gleichartig ausgelegten Beinen 111, die durch eine etwa auf der Hälfte ihrer Länge angeordnete mittlere Querstrebe 112 sowie durch eine untere, im Fußbereich angeordnete Querstrebe 113 verbunden sind. An der unteren Querstrebe 113 sind weiterhin zwei Räder 115 drehbar gelagert sowie ein erstes Teilstück 114 einer Spanneinrichtung schwenkbar angeordnet.
• Ein zweiter Träger 120, welcher ähnlich wie der erste Träger zwei parallele Beine 121 aufweist, welche nahe ihrer Fußpunkte durch eine untere Querstrebe 123 verbunden sind. Weiterhin ist an der unteren Querstrebe schwenkbar ein zweites Teilstück 124 einer Spanneinrichtung vorgesehen, wobei dieses an seinem distalen Ende eine als Griff dienende Querstange 125 trägt.

In the Figures 1 and 2 is the exemplary considered collapsible mounting table 100 shown in the assembled state. Visible are three essential components, namely:

• A work pad 130, which here consists of a flat and full-surface closed worktop 131 and underlying frame members 132 made of metal. Depending on the application, this working document 130 could also be designed differently.
• A first carrier 110, which is mounted pivotably about a rotation axis D1 on the work support 130. The carrier consists in the illustrated example of two substantially parallel and similarly designed legs 111, which is arranged by an approximately half of its length arranged central cross member 112 and by a lower, in the foot area arranged transverse strut 113 are connected. At the lower cross member 113 two wheels 115 are further rotatably mounted and a first portion 114 of a clamping device pivotally mounted.
• A second carrier 120 which, similar to the first carrier, has two parallel legs 121 which are connected near their feet by a lower transverse strut 123. Furthermore, a second portion 124 of a clamping device is pivotally provided on the lower cross member, wherein this carries at its distal end serving as a handle crossbar 125.

The dimensioning of the wheels 115 is chosen so that they have no ground contact when standing in the body condition, but the mounting table 100 instead stands on the foot of the legs 111. By slightly lifting the wheels 115 opposite side of the mounting table, however, a ground contact of the wheels 115 can be made quickly, so that the assembled mounting table can be easily moved.

Sufficient stability of the assembly table in the state of construction is achieved by a clamping device which connects the two pivotable supports 110 and 120 and presses them taut or under elastic tension against their attacks apart. The clamping device contains the already mentioned sections 114 and 124, which are pivotally mounted on the first carrier 110 and the second carrier 120. In the state of construction, these sections are characterized by the in FIGS. 9 and 10 closer locking mechanism coupled together. The latching mechanism includes a mandrel 141, which is mounted displaceably movable in the formed as a (square) tube first portion 114. The mandrel 141 is pushed out of the section 114 by a spring 142, its mobility being limited by a lever or pin 143 projecting outwardly through a slot in the section 114. The pin 143 also serves as a point of engagement over which the mandrel can be manually drawn into the tube 114 when the coupling to the other portion 124 is to be released.

In the coupled state, the outwardly projecting portion of the mandrel 141 engages the tube opening of the opposite portion 124 and thus connects the two tubes 114 and 124 of the tensioning device.

The Figures 3-5 show successive stages in the folding of the assembly table 100. The folding begins as described with the retraction of the mandrel 141 of the clamping device, so that as in FIG. 3 shown the two sections 114 and 124 of the clamping device can be decoupled.

According to FIG. 4 Next, the second carrier 120 is then pivoted toward the work base 110 until it rests against the work support 110. The associated portion 124 of the clamping device with the handle 125 is thereby guided between the legs of the first carrier in a protruding from the mounting table position.

It can also be seen in this context that the outer distance between the legs 121 of the second carrier 120 is less than the inner distance between the legs 111 of the first carrier 110. By this nesting, it is possible, the legs of the second carrier 120 between the Legs of the first carrier 110 to accommodate, whereby the mounting table assumes a particularly compact shape in the folded state.

How out FIG. 5 can be seen, the portion 114 of the clamping device of the first carrier 110 is then brought into abutment against the central cross bar 112, and the entire first carrier is pivoted to the working surface (arrow).

The collapsing of the mounting table 100 is thus already finished, without a special fixation of the carrier would be necessary to the work pad (of course, this can optionally be done anyway). The reason for this is from the representations of the folded transport state in the FIGS. 6, 7 and 8 recognizable. The figures show, on the one hand, that the folded assembly table 100 can stand upright stably, resting on the one hand on an edge of the work support 130 (preferably a protruding frame part 132) and on the other hand on the foot points of the work table Legs 111 of the first carrier 110 is supported. In order to make the used stand space sufficiently large (and to ensure freedom of rotation of the wheels 115), two stops 133 are provided on the working pad 130, against which the legs 111 of the first carrier 110. As a result, a slightly spread out standing of the first carrier 110 is achieved, which ensures the desired stability. At the same time, however, it is ensured that when tilting the mounting table 100 (arrow direction of FIG. 7 ) quickly get only the wheels 115 ground contact, so that the assembly table can be moved comfortably even in the folded transport condition.

In such a role of the mounting table of the mentioned handle 125 can be used from the associated portion 124 of the clamping device. An unintentional unfolding of the assembly table is prevented because the second carrier 120 is blocked with the handle 125 of the central cross bar 112 of the first carrier 110. A folding of the first carrier 110 is in turn eliminated because it is the entire weight of the mounting table.

For a sufficient stability of the assembly table 100 in the assembled state ( FIG. 1, 2 ), it proves to be important that the carriers 110 and 120 are coupled as tight as possible or without play with the work pad 130. As already mentioned serves for this purpose the clamping device with the rods 114 and 124. In order to ensure beyond sufficient tension even after prolonged use of the mounting table 100, which is in FIG. 11 provided Nachjustiereinrichtung shown. This contains in the example shown, a clamping screw 135 which is guided in the plate 131 and the frame members 132 of the work support in a thread. The clamping screw 135 presses against the free end of a stop plate 134, which is attached to the work support (or the frame parts 132) on one side at point X (eg, welded). The clamping screw 135 contacting opposite free end of the stop plate 134 is contacted in the assembled state of the mounting table by a leg 111 of the first carrier, which is rotatably mounted about the pivot point D1. By adjusting the adjusting screw 135 thus the position of the free end of the stop plate 134 (slightly) can be adjusted, which in turn changes the achievable opening angle of the first carrier 110. So can be ensured in a simple manner constantly a sufficiently tight fit of the carrier.

Claims (13)

1. Collapsible assembly table (100), comprising:

   - a work base (130);

   - a first support (110) arranged pivotably on the work base;

   - a second support (120) arranged pivotably on the work base;

   wherein the supports clan be adjusted between a set-up state in which they project from the work base and support it, and a transport state in which they rest on the work base,
   characterized in that

   - in the transport state, said assembly table can stand stably on the work base (130) and the first support (110), with the work base extending vertically;

   - at least one wheel (115) is arranged on one of the supports (110) such that said wheel has no ground contact when the assembly table is standing in the set-up state,

   - the wheel (115) has no ground contact when the assembly table stands on the work base (130) and the first support (110) in the transport state.
2. Assembly table (100) according to at least one of the other claims,
   characterized in that the feet of the first support (110), which have ground contact in the set-up state, also form the supporting points in the transport state.
3. Assembly table (100) according to at least one of the other claims,
   characterized in that the work base has a stop (133) for the first support (110), by means of which stop an increased standing area is created in the transport state.
4. Assembly table (100) according to at least one of the other claims,
   characterized in that the first support (110) and the second support (120) can be coupled via a bracing device (114, 124, 125, 141, 142, 143) in the set-up state.
5. Assembly table (100) according to Claim 4,
   characterized in that at least one part (124, 125) of the bracing device serves as a grip for the assembly table in the transport state.
6. Assembly table (100) according to at least one of Claims 4 and 5,
   characterized in that the bracing device comprises two portions, of which the first (114) is mounted on the first support (110) and the second (124) is mounted on the second support (120).
7. Assembly table (100) according to Claim 6,
   characterized in that one of the portions (114) has a slidably movable spindle (141) which engages in a recess of the other portion (124) in the set-up state.
8. Assembly table (100) according to at least one of the other claims,
   characterized in that, in the transport state, the last-pivoted support (110) limits the free pivoting movement of the first-pivoted support (120).
9. Assembly table (100) according to Claim 8,
   characterized in that the first-pivoted support (120) has a grip (124, 125) for the assembly table,
   and in that the last-pivoted support (110) has a crossbar (112) limiting the movement of the other support.
10. Assembly table (100) according to at least one of the other claims,
    characterized in that it comprises a readjustment device (134, 135) by means of which the end position of the first support (110) and/or of the second support (120) that is reached in the set-up state can be set/adjusted.
11. Assembly table (100) according to Claim 10,
    characterized in that the readjustment device comprises a set screw (135) against which the relevant support (110) butts directly or indirectly in the set-up state.
12. Assembly table (100) according to at least one of the other claims,
    characterized in that the first support (110) and/or the second support (120) comprise/comprises two legs (111, 121) which extend substantially parallel.
13. Assembly table (100) according to Claim 12,
    characterized in that the legs of the first support (110) are situated between the legs (121) of the second support (120) in the transport state, or vice versa.

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