CN102282329A

CN102282329A - Stand

Info

Publication number: CN102282329A
Application number: CN2010800044809A
Authority: CN
Inventors: 沃刚·奥特尼
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-27
Filing date: 2010-02-23
Publication date: 2011-12-14
Anticipated expiration: 2030-02-23
Also published as: BRPI1008769A2; AU2010217172A1; EA017745B1; HRP20130824T1; EA201170850A1; AT510944A5; SG173850A1; CA2753222A1; SI2224076T1; CN102282329B; EP2224076B1; AT510944B1; EP2224076A1; US20110067316A1; WO2010096847A1; AU2010217172B2

Abstract

The invention relates to a stand, in particular a transportable stand, having step elements (2) that can be pulled out of a support frame, which is substantially cuboid-shaped and in which they are disposed in the transport position or rest position, in a horizontal pull-out direction (F) into the usage position in a telescoping manner along support profiles (3) which are disposed in the lateral end region of the step elements. The invention is characterized in that the cross-sectional design of at least one support profile (3) is a substantially inverted U shape, thus being open toward the bottom, and comprises limb ends which are pulled in toward the inside, this being toward the slot, and the upper surfaces of which thus located on the inside are used as running surfaces, and that at least four support rolls (14) of the step element (2) located beneath run in said support profile (3), the rolls being disposed in pairs and disposed on either side of a substantially vertical rib (7) extending through the slit, and that the rib (7) in turn is connected at the bottom thereof to a support profile protruding in the pull-out direction (F).

Description

Grandstand

[technical field]

The present invention relates to a kind of grandstand, relate in particular to a kind of portable grandstand with step components, these step components can be pulled out to the use location from the transporting position that is essentially the support frame of tubulose from horizontal pull-out direction as telescope.

[technical background]

Deutsche Bundespatent 7411654U discloses a kind of portable grandstand, and discloses the multiple remodeling of pulling off device.Therefore it focuses on C shape profile.The net and the roll support of seat that is positioned at the below be in described C shape profile, and be rolled in the groove.In other improvement projects, bearing surface is easy to make dirty or is subjected to the moisture infringement simultaneously.However, it has avoided torsional stress at least in part.See that on the whole all modified structures are firm.

This grandstand is exposed among the German patent DE 19811766C simultaneously, and this grandstand is functional basically.But, very clear and definite is: after frequent installation and removal process, and be accompanied by especially dynamic stress of huge stress that spectators apply up by variety of way in activities such as competitive sports or open-air concert, distortion appears at flexible pulling out in the zone of operation is taken place, thereby makes that expensive maintenance cost is essential.These problems also cause needs constantly to check the state of grandstand, have therefore increased maintenance cost.

[summary of the invention]

The present invention is intended to propose a kind of remedial measure, and provide a kind of grandstand of the sort of type of partly mentioning in background technology, the mechanical stability of this grandstand is obviously stronger, and has bigger stress tolerance limit, does not increase grandstand weight or complexity simultaneously significantly.Simultaneously, with respect to prior art, the bearing surface of the grandstand among the present invention is more difficult make dirty and the ability of moisture-resistant gas cut erosion stronger.Someone thinks: according to the DE-C standard, the verified lifting apparatus that is arranged in the grandstand there is no need to use actually; And lifting apparatus is malfunctioning easily.Therefore, the portable grandstand that in fact forms does not in most cases meet the DE-C standard.According to lifting apparatus is not set in the grandstand of the present invention.

According to the present invention, above-mentioned purpose is achieved through the following technical solutions.

Design a kind of scalable profile or support profiles, it has inverted U-shaped cross section basically.Therefore, the bottom opening of scalable profile or support profiles, and have the shank of inwardly withdrawing towards the slit.And the step element of bottom has at least 4 support rollers that are provided with in pairs, support roller moves on the bearing surface of support profiles, at least 4 support rollers that are provided with in pairs are arranged on the both sides of the crossbeam of erectting basically, crossbeam is outstanding from the slit, and crossbeam is connected with a support profiles of giving prominence on pull-out direction successively in its bottom.

Compared with the prior art, the present invention has plurality of advantages.By the present invention, on the one hand can be on the roller of greater number with load distribution; On the other hand, the support profiles structural reason owing to sealing basically can obtain stronger profile rigidity, therefore, and with respect to prior art, with the various similar distortion of easier opposing; At last, in overload or not according to pull out (write down these situations, wherein single step element is to be drawn out by the chain that is fixed on other objects) in the process of instruction operation, can prevent reliably that the support roller side direction from skidding off support profiles.

[description of drawings]

Fig. 1 has showed the stereogram of the grandstand that assembles according to the present invention;

Fig. 2 has showed the stereogram of the step element that assembles up according to the present invention;

Fig. 3 has showed step element that partly pushes in and the step element that partly pulls out;

Fig. 4 is the front view of parts shown in Figure 3; And

Fig. 5 has showed the detail perspective view of pull-out elements.

[specific embodiment]

Fig. 1 has showed portable grandstand 1 on the whole.From this figure, can see step element 2.These step element 2 are made up of support frame 5.Support frame 5 has the shape of casing substantially, and preferably has the external dimensions and the fastening devices of 20 feet casings or 40 feet casings, thereby is convenient to transportation and shipment.The element 2 of single drawer-like can be released from casing 5 as telescope.Fig. 1 has showed the grandstand retention device simultaneously and has had the step element of step, so that show modification.

Fig. 2 has showed step element 2 on the whole.In the drawings, F represents pull-out direction.Below the actual ledge surface 4 of the edge of each step element or fringe region, has supporting track 3.From pull-out direction F, be provided with in rear portion and the upper area be parallel to described supporting track 3 and with the support roller devices 6 that preferably firmly are connected with these supporting tracks 3.As can be seen from Figure 2: each support roller device 6 is made up of 4 rollers 14.These roller 14 pairings are arranged on the left side and the right of crossbeam 7, thereby have formed front wheel secondary 8 and rear roller pair 9.From Fig. 3-4 as can be seen:

roller pair

8,9 and crossbeam 7 have been clamp-oned the inside of the supporting track 3 of an adjacent higher step element 2.

Fig. 3 has schematically showed only have single support profiles 3 and crossbeam 7 and the step element 2 that is connected to each other, front wheel secondary 8 and the rear roller pair 9 that can see from the step element 2 at top.

Fig. 4 has showed the view that the direction IV from Fig. 3 observes, and has showed the support profiles 3 of only aliging with front wheel secondary 8 and crossbeam 7 simultaneously.Can see flank 10 simultaneously from Fig. 4, it is used for step element 2 (this figure does not show) is assembled.

From Fig. 4, especially can see the support profiles 3 that stably assembles.If between actual support profiles 3 and the crossbeam 7 be connected firm and both are connected to each other in large quantities, then have bigger dynamic moment of inertia in the cross section of these support profiles 3.

Fig. 5 simultaneously schematic presentation support profiles 3, be arranged on crossbeam 7 and two

roller pairs

8,9 on the support profiles 3 securely.Wherein, roller 14 is a schematic presentation only, so does not show parts such as bearing among the figure, has omitted the assembly element of various blocks, track limit element, rinforcement bar and step element simultaneously among the figure.

Roller pair

8,9 is arranged in the support profiles 3, and moves on two bearing surfaces 11,12 of support profiles 3 inside.Crossbeam 7 is 13 outstanding from the slit between two bearing surfaces 11,12 down.Therefore, on the one hand, can lead to two

roller pairs

8,9 well; And on the other hand, can prevent effectively that roller from overstepping the limit, the fierce distortion of step element 2 and supporting track 3 be with respect to the significantly inclination of (being parallel to pull-out direction F) of its longitudinal axis.Even should have bigger remnants (plasticity) distortion in the zone, the maximal destruction that can reckon with is the stuck phenomenon of roller pair just, and can not break the thing of step element.Therefore, the safety of device is provided greatly, and will can damaged because of system's misoperation.

The present invention is not restricted to described embodiment, but can make amendment in several ways.Therefore, profile can have other shapes, and does not need to have the slope of bearing surface 11,12 sidepieces that are positioned at lower area.Can provide plural roller pair, so that, can allow load distribution even under the bigger situation of error or under the bigger situation of initial deformation.Especially, can on seesaw, provide two roller pairs, rather than one or two roller pair, when producing load along with seesaw around its rotating shaft rotation with box lunch, the load that is produced is even as much as possible.

Can take measures, so that can set up another grandstand in " back " of grandstand shown in Figure 1, this another grandstand is than the height of the high casing of grandstand shown in Figure 1, and this another grandstand couples together by suitable mode and grandstand shown in Figure 1, and is supporting grandstand shown in Figure 1.These grandstands formed according to the present invention also can with combine such as the hall so that provide free space for specific activity.Secondly, casing itself is not an entity, but (if necessary) around under the situation of brick structure, can be at the top of casing fixing step element in large quantities.Casing has become the lid that blocks dust, can stop unwanted people to enter inside simultaneously, simultaneously for visual appearance.

The roller ancillary equipment of being explained with the roller that is positioned at crossbeam the right and left and rotates on the bearing surface of the profile that almost seals all is basic structure in all cases, oversteps the limit so that prevent roller.Certainly, do not form crossbeam on the carrying profile topmost and be positioned at roller on the crossbeam, simultaneously, carrying profile does not bottom have support profiles, because do not need support profiles.

Roller 14 definitely is necessary paired setting, can guarantee that like this roller 14 is positioned in alignment and the continuous rotating shaft.These rollers 14 can stagger mutually on direction F, but still have paired structure.But preferably these rollers 14 are provided with in pairs and are aligned with each other.

Claims

1. grandstand, especially the portable grandstand (1) that has a plurality of step element (2), described step element (2) is arranged to transportation or resting position in being essentially the support frame of parallelepiped, described step element (2) can be pulled out to the use location from described support frame in the last support profiles (3) in the lateral end zone that is arranged on described step element (2) of horizontal pull-out direction (F), it is characterized in that: at least one support profiles (3) is designed to have inverted U-shaped cross section, the bottom opening of described support profiles (3), described support profiles (3) has towards a slit (13) the inwardly shank of withdrawal, the inner surface of described shank is a bearing surface (11,12), and the step element of bottom (2) has at least 4 support rollers (14) that are provided with in pairs, described support roller (14) is at the described bearing surface (11 of described support profiles (3), 12) go up motion, described at least 4 support rollers (14) that are provided with in pairs are arranged on the both sides of the crossbeam of erectting basically (7), described crossbeam (7) is outstanding from described slit (13), and described crossbeam (7) is connected successively with in the upward outstanding support profiles (3) of described pull-out direction (F) in its bottom.

2. grandstand according to claim 1 is characterized in that: at least one roller pair (8,9) is positioned in the public rotating shaft.

3. grandstand according to claim 1 is characterized in that: at least one roller is secondary to be two roller pairs, and two rotating shafts of described pair of roller pair are arranged on the public seesaw, and described seesaw is fixed, and rotates so that can go up at described crossbeam (7).