WO2015118568A1 - Height-adjustable double platform manually moved - Google Patents
Height-adjustable double platform manually moved Download PDFInfo
- Publication number
- WO2015118568A1 WO2015118568A1 PCT/IT2015/000024 IT2015000024W WO2015118568A1 WO 2015118568 A1 WO2015118568 A1 WO 2015118568A1 IT 2015000024 W IT2015000024 W IT 2015000024W WO 2015118568 A1 WO2015118568 A1 WO 2015118568A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- rotating
- rotating elements
- pair
- elements
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
Definitions
- Prior art fulfills such necessity by means of more or less complex structures used to lift the user.
- Such structures can be divided into two categories, telescopic or basic, according to how easily their height can be changed.
- basic lifting structures such as boards, benches, sawhorses, ladders and scaffoldings
- the height of the platform must be established beforehand. The whole structure is rearranged when the height of the platform or the height of the user's standing area are modified.
- such structures do not guarantee user's safety, as they have no protective elements.
- WO 99/41186 Al relating a portable telescopic lift for a single user, with wheels both on its base and at the end of four external elements.
- Each one of the wheels of the base is linked to an external wheel.
- Two of the external wheels are equipped with motors, making the lift self-propelled and guidable from height.
- the height-adjustable double platform manually moved in object which consists in two basically identical and specular structures each one equipped with a platform and a base connected by two height- adjustable tubular elements.
- Each board serves as a base for pillars on which are steadily fixed upper beams to form the railings and height-adjustable lower beams set between the railing and the board.
- the lower beams can be substituted by foils fixed to the pillars.
- Railings of each board form a basket, open on the side facing the other board.
- each pair of rotating elements In the case of a pair of rotating elements, one element of each pair follows the other.
- the longitudinal axis of each pair or rotating elements is parallel to a longitudinal axis of the base.
- the first element can rotate both on its own axis and upon itself up to 360°, while the second element can only rotate on freewheel and on its own axis in one direction and is equipped with a device that prevents rotation towards the other side (non-return rotating element).
- the second non-return rotating element of each pair of rotating elements rotates toward the closest front or rear edge of the base.
- At least one pair of rotating elements is specular to another pair of rotating elements so that the second non-return rotating elements of the two pairs rotate in opposite directions.
- the used can adjust the height of the two boards using the tubular elements and reposition himself without stepping down. Materials and tools useful for the required task can be hooked on the railings.
- Fig. 15 and Fig. 16 are two lateral views of the platforms moving towards opposite directions;
- Figs. 1 to 7 represent the double moving platform in object in a first preferred embodiment.
- the double moving platform is formed by two substantially twin and specular structures, each one equipped with a board 1, 2 and a base 3, 4.
- Each board 1, 2 supports pillars on which are steadily fixed upper beams to form the railings 5 and height-adjustable lower beams 6 set between the railing 5 and the board 1, 2.
- Railings 5 of each board form a basket, open on the side facing the other board.
- the right board 1 has therefore no railings 5 on its right side and the left board 2 has no railings 5 on its left side.
- Each pair of rotating elements 13 is connected to each base 3, 4, two pairs of rotating elements 13 near one lateral edge of base 3, 4 and the other two pairs of rotating elements 13 on the lateral edge opposite to base 3, 4.
- Each pair of rotating elements 13 is mounted on a U-shaped section bar 15.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The double platform is formed by two twin and specular structures each one equipped with a board (1, 2) and a base (3, 4); each board (1, 2) serves as a base for pillars on which are steadily fixed upper beams forming railings (5) and height-adjustable lower beams (6) set between the railings (5) and the board (1, 2); the railings (5) of each platform create a basket open on the side facing the other platform; each board (1, 2) is linked to the corresponding base (3, 4) through a tubular element (7, 8) adjustable in height through dowel pins (9); each base (3, 4) is equipped whether with rubber feet (14) and rotating elements (13) or with single or paired rotating elements (13); in each pair, one rotating element (13.1, 13.2) is set after the other (13.2, 13.1) and the longitudinal axis of each pair is parallel to a longitudinal axis of the base (3, 4).
Description
Height-adjustable double platform manually moved.
FIELD OF THE INVENTION
The present invention is directed to a double platform which allows for general and maintenance tasks at height. More specifically, the height-adjustable double platform can be manually moved, easily and safely.
BACKGROUND OF THE INVENTION
In case of general and maintenance tasks at height, the user should be able to reach the area of the required task in all comfort and safety and independently from his own height.
Prior art fulfills such necessity by means of more or less complex structures used to lift the user. Such structures can be divided into two categories, telescopic or basic, according to how easily their height can be changed. In basic lifting structures such as boards, benches, sawhorses, ladders and scaffoldings, the height of the platform must be established beforehand. The whole structure is rearranged when the height of the platform or the height of the user's standing area are modified. Moreover, in most of the cases, such structures do not guarantee user's safety, as they have no protective elements.
In telescopic lifting structures such as moving platforms, crane baskets, lifts with manbasket, on the other hand, the user can be easily lifted. The vertical movement of the platform (usually the base of a protective basket occupied by the user) is activated mechanically, electrically or electric-hydraulically. The most advanced telescopic structures have a remote control that allows the user to reposition the structure without stepping down and moving it.
One of such structures is WO 99/41186 Al, relating a portable telescopic lift for a single user, with wheels both on its base and at the end of four external elements. Each one of the wheels of the base is linked to an external wheel. Two of the external wheels are equipped with motors, making the lift self-propelled and guidable from height.
Unfortunately, the improvements of telescopic lifting structures causes a significant increase in costs.
Prior art also includes less complex and therefore less expensive structures that allow nonetheless to easily adjust the height. Among these, BE 1 019 851 A3, a double moving platform, height-adjustable and formed by two twin specular structures, each with its own platform linked to the corresponding base by means of height-adjustable tubular elements. Each platform is equipped with a handle and each base is equipped with rubber feet. The tubular element fixed to each base is equipped with steps. The two identical platforms are lifted by the feet of the user, inserted in belts attached to the base.
US 7 080 715 Bl relates instead a height-adjustable platform with a base equipped with wheels on one side and rubber feet on the other. Wheels are not used to facilitate the repositioning of the platform by a user standing on it.
SUMMARY OF THE INVENTION
The first aim of this invention is to provide a height-adjustable double platform able to combine the advantages of basic structures (portability, manageability, low costs, reliability and versatility of use) with the safety of telescopic structures.
Another aim is to provide a moving double platform with fixed and/or steering wheels and rubber feet, stable during repositioning, even in the event of a slight incline.
These and more aims are attained by the height-adjustable double platform manually moved in object, which consists in two basically identical and specular structures each one equipped with a platform and a base connected by two height- adjustable tubular elements. Each board serves as a base for pillars on which are steadily fixed upper beams to form the railings and height-adjustable lower beams set between the railing and the board. The lower beams can be substituted by foils fixed to the pillars. Railings of each board form a basket, open on the side facing the other board.
The tubular element fixed to each board is connected to the tubular element fixed to the corresponding base through dowel pins inserted in holes in the tubular elements themselves. The tubular element fixed to each base is equipped with steps. Each board is also equipped with a handle used for repositioning while at
ground level.
The base of each board is equipped whether with rotating elements and rubber feet or with rotating elements only.
The rotating elements are single or in pair and are placed directly on the base or on intermediate elements attached to the base. In this case, an elastic element is placed between the base and one extremity of the intermediate element.
In the case of a pair of rotating elements, one element of each pair follows the other. The longitudinal axis of each pair or rotating elements is parallel to a longitudinal axis of the base. In each pair of rotating elements, the first element can rotate both on its own axis and upon itself up to 360°, while the second element can only rotate on freewheel and on its own axis in one direction and is equipped with a device that prevents rotation towards the other side (non-return rotating element). The second non-return rotating element of each pair of rotating elements rotates toward the closest front or rear edge of the base. At least one pair of rotating elements is specular to another pair of rotating elements so that the second non-return rotating elements of the two pairs rotate in opposite directions. The used can adjust the height of the two boards using the tubular elements and reposition himself without stepping down. Materials and tools useful for the required task can be hooked on the railings.
The height-adjustable double moving platform is safe for the user thanks to the protective basket formed by railings set higher that the barycenter of an average person. They prevent falls both in normal and emergency situations, like for example the fainting of the user while at his task.
Preferably, the double moving platform is made of metal with weld joints but it can also be made of other materials such as aluminum alloy, steel alloy or any other suitable alloy, carbon, plastic, resin and/or any other suitably resisting material.
Thanks to the platforms' moving system, involuntary movements are prevented, incrementing user's safety.
DESCRIPTION OF THE DRAWINGS
More characteristics and advantages will emerge while reading the following description of a few preferred embodiments of the invention, given as examples and with reference to the provided figures:
- Fig. 1 is a perspective view of the double platform;
- Fig. 2 is a second perspective exploded view of the double platform;
- Fig. 3 is a frontal view of the double platform at two different heights;
- Fig. 4 is the ascent of the user on the double platform using the provided steps;
- Fig. 5 is a repositioning of the double platform while the user is on the platform itself;
- Fig. 6 is a view of the double platform with the user standing on its boards;
- Fig. 7 is a repositioning of one of the two platforms while the user is on the ground;
- Fig. 8 is a perspective view of one of the two platforms in a second version;
- Fig. 9 is an exploded view of the base of the same platform;
- Fig. 10 is an exploded view of one pair of rotating elements;
- Fig. 1 1 is an upper view of the base of one platform;
- Fig. 12 is a longitudinal section along the A-A plan of the base on Fig. 11 ;
- Fig. 13 is the same section as in Fig. 12 and shows the movement of the two pairs of rotating elements and their supporting intermediate elements;
- Fig. 14 is an upper view of the base of the platform moving to a second possible position;
- Fig. 15 and Fig. 16 are two lateral views of the platforms moving towards opposite directions;
- Fig. 17 is a perspective view of the platform with the user pushing it;
- Fig. 18 is the same section as in Fig. 12 with the pairs of rotating elements in a different position;
- Fig. 19 is an upper view of the base of the platform moving according to the different position of the pairs of rotating elements as in Fig. 18.
DETAILED DESCRIPTION OF TWO PREFERRED EMBODIMENTS
Figs. 1 to 7 represent the double moving platform in object in a first preferred
embodiment. The double moving platform is formed by two substantially twin and specular structures, each one equipped with a board 1, 2 and a base 3, 4. Each board 1, 2 supports pillars on which are steadily fixed upper beams to form the railings 5 and height-adjustable lower beams 6 set between the railing 5 and the board 1, 2. Railings 5 of each board form a basket, open on the side facing the other board. The right board 1 has therefore no railings 5 on its right side and the left board 2 has no railings 5 on its left side.
A first tubular element 7 is fixed to each board 1 , 2 and a second tubular element 8 is fixed to each base 3, 4. The two tubular elements 7, 8 of each platform are linked through dowel pins 9 inserted in holes 10 in the tubular elements 7, 8 themselves. Each board 1, 2 is therefore height-adjustable to the base 3, 4.
The tubular element 8 fixed to each base 3, 4 is equipped with steps 11. Each board is also equipped with a handle 12 used for repositioning while at ground level.
The base 3, 4 of each platform is equipped with rotating elements 13 attached to the rear side of the base 3, 4 itself and rubber feet 14 to the front. In this particular case, the rotating elements 13 are wheels.
From an operative point of view, the double moving platform can be assembled by inserting the tubular elements 7 weld to the board 1, 2 into the tubular elements 8 of the corresponding base 3, 4. The user adjusts the height of the two boards 1, 2 using the dowel pins 9, climbs on the boards 1, 2 using the steps 11 on the tubular elements 7 and, before undertaking his task, hooks materials and tools on the railing 5. Using the moving platform, the user can then position himself into the required position for his task itself to reach without needing to step down.
As shown in Fig. 5, the repositioning is done by levering upwards with the feet on the lower beam 6 of board 2, which corresponds to the extremity of base 4 on which the rubber feet 14 are fixed while at the same time lifting with the hand the railing 5 of the same side. The rubber feet 14 detach themselves from the ground and the base 4 with its corresponding board 2 can be pushed on the rotating elements 13. The same happens with the other board 1, using the two boards 1, 2
as stilts. The repositioning towards the other way is carried out simply by moving the weight of the user towards the extremity of the base 3, 4, where the rotating elements 13 are fixed, and by pulling one board 1, 2 at the time on the rotating elements 13 themselves.
After every "step", the double moving platform is safely stopped by the rubber feet 14 once again on the ground.
Figs. 8 to 17 represent the double moving platform in object in a second preferred embodiment, substantially identical to the first one; the lower beams 6 are however substituted by foils fixed to the pillars, the rotating elements 13 are set in pairs and the are no rubber feet 14.
Four pairs of rotating elements 13 are connected to each base 3, 4, two pairs of rotating elements 13 near one lateral edge of base 3, 4 and the other two pairs of rotating elements 13 on the lateral edge opposite to base 3, 4. Each pair of rotating elements 13 is mounted on a U-shaped section bar 15.
In this embodiment, the rotating elements 13 are formed by two wheels 13.1, 13.2. The two wheels 13.1, 13.2 of each pair are set one after the other and the longitudinal axis of each pair is parallel to a longitudinal axis of base 3, 4.
A first wheel 13.1 of each pair is pivoted onto a bracket 13.3. Each rotating bracket 13.3 is then fixed to a U-shaped section bar 15 through a threaded bar 13.4 and a nut 13.5. The first wheel 13.1 is thus able to rotate both on its own axis and on itself to 360° as it is indirectly pivoted on the U-shaped section bar 15 by means of a threaded bar 13.4.
The second wheel 13.2 of each pair is pivoted on the U-shaped section bar 15 through an axis 13.6. The second wheel 13.2 of each pair is of the non-return type, that is it rotates always on freewheel and on its own axis 13.6 towards only one side and is equipped with a device that prevents the rotation towards the other side. The second wheel 13.2 of each pair is fixed to the U-shaped section bar 15 so as to rotate only in the direction of the first wheel 13.1.
The four pairs of rotating elements 13 are fixed to the base 3, 4 trough pivots 16, each one passing through the mid position of a transversal U-shaped section bar
15. Therefore, each U-shaped section bar 15 can rotate, at least partially, with respect to base 3, 4, having as fulcrum the pivot 16 itself.
A spring 17 is inserted between the base 3, 4 and the extremity of the U-shaped section bar 15 on which is attached the second wheel 13.2.
The two pairs of rotating elements 13 of each side of the base 3, 4 are mounted specularly so that the first rotating wheel 13.1 of each first pair finds itself along the front edge of the base 3, 4 and the first rotating wheel 13.1 of each second pair finds itself its rear edge. The two pairs of rotating elements 13 of the two opposite sides of the base 3, 4 are mounted the same way. The system is thus of a bilateral specular type.
From an operative point of view, the platform advances by shifting the weight of the user on the board 1 in correspondence with the front edge of base 3 and at the same time by pushing the railings 5 of the board 1 on the same side. The two pairs of rotating elements 13 of base 3, set near the rear edge of the base 3, lift by leverage and do not grip on the ground anymore. Conversely, all the wheels 13.1, 13.2 of the two pairs of rotating elements 13, set close to the front edge of base 3, touch the ground: the first wheels 13.1 because they are subject to the weight force of the user and the second wheels 13.2 because they are pushed by springs 17 compressed by the rotation of the U shaped section bars 15 in regards to the base 3. The user then shifts his weight forward, causing the contemporary advancement of the first board 1 on the wheel 13.1, 13.2 of the two pairs located close to the front edge of base 3. The same happens with the other board and so on, using the boards 1, 2 like stilts.
As shown in Fig. 14, the user can also steer each platform during the advancement. This happens just by shifting the weight on the board 1, 2 still in correspondence of the front edge of base 3, 4 but on the side towards which the platform should turn. The fulcrum of the platform during this rotation will be the second wheel 13.2 of the pair of rotating elements 13, set close to the front edge of base 3, 4 on that side of the platform.
By suspending the push (for advancement or steering) and taking the weight back
on the middle of the boards 1, 2, the pairs of rotating elements 13 set close to the rear edges of bases 3, 4 lower themselves to touch the ground again. The platforms cannot at this point go forward nor backward, as the second non-return wheels 13.2 are mounted specularly and therefore rotate towards opposite directions one to another, acting as brakes.
The same kind of movement occurs when the user wants to take the platform backwards. In this case, he shifts the weight on the board 1 , 2 in correspondence of the rear edge of the base 3, 4 and at the same time he pushes the railings 5 of the board 1 , 2 on the same side, therefore using the pairs of rotating elements 13 close to the rear edges of bases 3, 4.
Thanks to the second non-return wheels 13.2, unexpected movements are not an issue, even in case of a slight incline. The user can therefore work in all safety. Figs. 18 and 19 show an alternative arrangement of the pairs of rotating elements 13. The two pairs of rotating elements 13 of each side of the base 3, 4 are mounted specularly but so that the second non-return wheel 13.2 of each pair of rotating elements 13 finds itself on the front or on the rear edge of the base 3, 4. In consequence, the first rotating wheels 13.1 of the two pairs of rotating elements 13 face the center of the base 3, 4. The second wheel 13.2 of each pair of rotating elements 13 is mounted on U-shaped section bars 15 in a way that prevents rotation in the same direction as the first wheel 13.1.
Each platform moves forward in the above-mentioned way. While steering, the platform will always have as fulcrum for its rotation the second wheel 13.2 of the pair of rotating elements 13 set close to the front edge of the base 3, 4. However, considering that this second wheel 13.2 is in an advanced position in regards with the one in the previously mentioned example, the steering will be more abrupt.
Claims
1 - Height-adjustable double platform manually moved, comprising two substantially twin and specular structures, each one equipped with a board (1, 2) and a base (3, 4) in which each board (1, 2) being linked to the corresponding base (3, 4) by means of height-adjustable tubular elements (7, 8); each platform further having an handle (12); the tubular element (7) fixed to each base (3, 4) being equipped with steps (11); each base (3, 4) being equipped with rubber feet (14); the double platform being characterized in that pillars rising from each board (1, 2); on the pillars being firmly fixed upper beams forming the railings (5) and lower beams (6) or foils set between the railings (5) and the board (1, 2); the lower beams (6) being height-adjustable; the railings (5) of each platform forming a basket, open to the side facing the other platform; the tubular element (7) fixed to each board (1, 2) being linked to the tubular element (8) attached to the corresponding base (3, 4) through dowel pins (9) inserted in holes (10) of the tubular elements (7, 8); each base (3, 4) being further equipped with rotating elements (13).
2 - Double platform according to claim 1, characterized in that the rotating elements (13) being single.
3 - Double platform according to claim 1, characterized in that the rotating elements (13) being in pairs.
4 - Double platform according to claim 3, characterized in that at least two pairs of rotating elements (13) being used; the pairs of rotating elements (13) being linked to each base (3, 4); in each pair of rotating elements (13) one rotating element (13.1, 13.2) being positioned after the other (13.2, 13.1) and the longitudinal axis of each pair of rotating elements (13) being parallel to a longitudinal axis of the base (3, 4); in each pair of rotating elements (13) a first rotating element (13.1) being free to rotate both on his own axis and on itself to 360 degree while a second rotating element (13.2) being of the non-return type, which means it always rotates on freewheel and on its own axis (13.6) towards one side and it is equipped with a device that prevents rotation towards the other
direction; the second rotating element (13.2) of each pair of rotating elements (13) rotating towards the closest front or rear edge of the base (3, 4); at least one pair of rotating elements (13) being specular to another pair of rotating elements (13) so that the second non-return rotating elements (13.2) of the two pairs of rotating elements ( 13) rotating in opposite directions.
5 - Double platform according to claim 4, characterized in that each pair of rotating elements (13) being placed on the base (3, 4) so that the first rotating element (13.1) of at least one first pair of rotating elements (13) being positioned close to the front edge of the base (3, 4) and the second rotating element (13.2) facing the center of the base (3, 4) and the first rotating element (13.1) of at least second pair of rotating elements (13) being close to the rear edge of the base (3, 4) and the second rotating element (13.2) facing the center of the base (3, 4).
6 - Double platform according to claim 4, characterized in that each pair of rotating elements (13) being placed on the base (3, 4) so that the second rotating element (13.2) of at least one first pair of rotating elements (13) being placed close to the front edge of the base (3, 4) and the first rotating element (13.1) facing the center of the base (3, 4) and the second rotating element (13.2) of at least the second pair of rotating elements (13) being placed close to the rear edge of the base (3, 4) and the first rotating element (13.1) facing the center of the base (3, 4).
7 - Double platform according to claims 2 and 3, characterized in that the aforementioned rotating elements (13) being mounted directly on the base (3, 4).
8 - Double platform according to claim 3, characterized in that the aforementioned rotating elements (13.1, 13.2) being mounted on intermediate elements pivoted on the base (3, 4).
9 - Double platform according to claim 8, characterized in that the aforementioned rotating elements being U shaped section bars (15); the first rotating element (13.1) of each pair of rotating elements (13) being pivoted to a bracket (13.3); the rotating bracket (13.3) being fixed to the U-shaped section bar (15) through a threaded bar (13.4) and a nut (13.5); said second rotating element (13.2) of each
pair of rotating elements (13) being pivoted to the U-shaped section bars (15) through an axis (13.6).
10 - Double platform according to claims 8 and 9, characterized in that an elastic element being positioned between the base (3, 4) and the extremity of each intermediate element on which the second rotating element being fixed (13.2).
11 - Double platform according to any of the above claims, characterized in that the user can reposition himself by using the two boards (1, 2) as stilts, without the need to step down.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITGO20140001 | 2014-02-05 | ||
| ITGO2014A000001 | 2014-02-05 | ||
| ITGO20140006 | 2014-04-30 | ||
| ITGO2014A000006 | 2014-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2015118568A1 true WO2015118568A1 (en) | 2015-08-13 |
| WO2015118568A4 WO2015118568A4 (en) | 2015-09-11 |
Family
ID=52814161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2015/000024 WO2015118568A1 (en) | 2014-02-05 | 2015-02-04 | Height-adjustable double platform manually moved |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015118568A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868090A (en) * | 2018-09-06 | 2018-11-23 | 中国建筑第二工程局有限公司 | A kind of construction platform |
| CN111535545A (en) * | 2020-05-25 | 2020-08-14 | 中冶建工集团有限公司 | Construction process of large-area concrete wear-resistant terrace |
| US11230850B2 (en) * | 2017-03-03 | 2022-01-25 | Sh Technologies Pte Ltd | Formwork support formed with stackable components |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425128A (en) * | 2020-03-22 | 2020-07-17 | 刘可夫 | Indoor and outdoor electrician installation and maintenance operation device and operation method |
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|---|---|---|---|---|
| US3180450A (en) * | 1963-08-20 | 1965-04-27 | Angeles Machine & Welding Corp | Extendible mobile scaffolds |
| US3330571A (en) * | 1965-06-01 | 1967-07-11 | Robert E Pierce | One wheeled skate |
| US4415063A (en) * | 1982-07-26 | 1983-11-15 | James Hutchison | Stilt device |
| US4427094A (en) * | 1981-07-10 | 1984-01-24 | Winkelblech Dean R | Portable elevator device |
| JPH09122270A (en) * | 1995-11-06 | 1997-05-13 | Shunsuke Suzuki | Multi-purpose stilt |
| WO1999041186A1 (en) * | 1998-02-13 | 1999-08-19 | Upright, Inc. | Portable personnel lift with wheel drive mounted on outriggers |
| US7080715B1 (en) * | 2004-10-05 | 2006-07-25 | Bowlin Jerry M | Portable body support apparatus for automotive mechanics |
| BE1019851A3 (en) * | 2011-02-25 | 2013-01-08 | Dubois Marc | STEP. |
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2015
- 2015-02-04 WO PCT/IT2015/000024 patent/WO2015118568A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3180450A (en) * | 1963-08-20 | 1965-04-27 | Angeles Machine & Welding Corp | Extendible mobile scaffolds |
| US3330571A (en) * | 1965-06-01 | 1967-07-11 | Robert E Pierce | One wheeled skate |
| US4427094A (en) * | 1981-07-10 | 1984-01-24 | Winkelblech Dean R | Portable elevator device |
| US4415063A (en) * | 1982-07-26 | 1983-11-15 | James Hutchison | Stilt device |
| JPH09122270A (en) * | 1995-11-06 | 1997-05-13 | Shunsuke Suzuki | Multi-purpose stilt |
| WO1999041186A1 (en) * | 1998-02-13 | 1999-08-19 | Upright, Inc. | Portable personnel lift with wheel drive mounted on outriggers |
| US7080715B1 (en) * | 2004-10-05 | 2006-07-25 | Bowlin Jerry M | Portable body support apparatus for automotive mechanics |
| BE1019851A3 (en) * | 2011-02-25 | 2013-01-08 | Dubois Marc | STEP. |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11230850B2 (en) * | 2017-03-03 | 2022-01-25 | Sh Technologies Pte Ltd | Formwork support formed with stackable components |
| CN108868090A (en) * | 2018-09-06 | 2018-11-23 | 中国建筑第二工程局有限公司 | A kind of construction platform |
| CN111535545A (en) * | 2020-05-25 | 2020-08-14 | 中冶建工集团有限公司 | Construction process of large-area concrete wear-resistant terrace |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015118568A4 (en) | 2015-09-11 |
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