[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CA3095133A1 - Clamping mechanism for scaffold systems - Google Patents

Clamping mechanism for scaffold systems Download PDF

Info

Publication number
CA3095133A1
CA3095133A1 CA3095133A CA3095133A CA3095133A1 CA 3095133 A1 CA3095133 A1 CA 3095133A1 CA 3095133 A CA3095133 A CA 3095133A CA 3095133 A CA3095133 A CA 3095133A CA 3095133 A1 CA3095133 A1 CA 3095133A1
Authority
CA
Canada
Prior art keywords
clamp
prop
clamping mechanism
corner
sector
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.)
Pending
Application number
CA3095133A
Other languages
French (fr)
Inventor
Salemo De Almeida Madureira
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.)
Salemo & Merca Lda
Original Assignee
Salemo & Merca Lda
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 Salemo & Merca Lda filed Critical Salemo & Merca Lda
Publication of CA3095133A1 publication Critical patent/CA3095133A1/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/04Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00Shores or struts; Chocks
    • E04G25/04Shores or struts; Chocks telescopic
    • E04G25/06Shores or struts; Chocks telescopic with parts held together by positive means
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00Scaffolds primarily resting on the ground
    • E04G1/15Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/16Struts or stiffening rods, e.g. diagonal rods
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/06Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/28Clips or connections for securing boards
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00Shores or struts; Chocks
    • E04G2025/006Heads therefor, e.g. pivotable
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/26Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Clamps And Clips (AREA)
  • Electric Cable Installation (AREA)

Abstract

The present invention relates to a clamping mechanism for scaffolds, basically consisting of a set comprised of a clamp (1) and a prop (2) suitable for use in scaffold systems mounted with modular elements. The prop (2) has at least one groove (8). The clamp (1) is comprised of a fixed part (3) and a movable part (4) having three toothed ends (5) for closing the clamp completely by engaging the locking pin (7), and is further provided with a protruding member (6) on its inner face which interlocks with a groove (8) of the prop (2), thus securing the structures to which they are applied.

Description

DESCRIPTION
CLAMPING MECHANISM FOR SCAFFOLD SYSTEMS
FIELD OF THE INVENTION
Generally, in scaffold systems, the fixation between the props and the horizontal beams or diagonal beams is made using eyebolts, screwed or welded, in the prop itself, or also with the use of fixed or removable clamps.
The clamping methods which are welded to the props allow the latter to be fastened with crossbeams, forming a right angle between them, and, with the use of clamps, if they are hinged, the diagonal crossbeams can also be fixed to the vertical props, forming any angle between them.
The clamping methods and clamps currently known and in use on the market are made from forged, tempered and quenched spring-steel weighing about 1.2 kg each, the clamp components being tightened or adjusted with (straight or curved) screws, and the clamp is closed and fixed to the prop or to the crossbeam, also using (straight or curved) screws, and sometimes with a fastening nut.
When mounting the scaffold structure, for safety reasons, the bolts cannot be tightened, they can only be adjusted on the component threads or to the clamp nuts, because there is always the risk of deforming the prop, deforming the crossbeam, or deforming the components of the clamp or, even worse, twisting, deforming and breaking the Date Recue/Date Received 2020-09-24
- 2 -screw or, to say the least, damaging the thread fillets on the nut or the screw which, in the next use, when tightened by the operator, will be left falsely tightened, thus jeopardizing the safety of both the entire structure and the workers who are using it.
Considering the required precautions in tightening the screws, when fixing the clamps to the props and to the crossbeams (horizontal tubes joining the scaffold posts), it is easy to understand that clamping systems using fastening screws are pretty much unsafe and very defective concerning possible slides in the vertical props, and because of this, there are often safety failures, unevenness of scaffolds, and too many work accidents at height.
Furthermore, in the currently used scaffold systems, which are provided with fastening means welded to the props, the eyebolts for fixing the crossbeams are welded, spaced at intervals of 50 cm, not envisaging the need to mount scaffolds at intermediate heights which would be more suitable for the execution of the works. This deficiency of height in the scaffold induces the worker to use complementary crates or step-ladders supported by the scaffolds, this being a common and frequent situation which is much likely to lead to accidents.
In addition, in the metal structures of the currently used scaffold systems, the props are fitted into one another vertically in order to form several floors, which are necessary for the execution of the work, and since all the components are, in general, props and crossbeams made from metallic materials, when, on any of the floors or on Date Recue/Date Received 2020-09-24
- 3 -the base of the structure, there is inadvertently an electric or static current contact, all users of this structure are affected by the electric discharge, suffering the sometimes fatal consequences.
Therefore, for the reasons explained above, and given the technical and practical knowledge acquired over a few decades in monitoring the erection of metal structures, but more particularly the knowledge concerning the manufacture of components and accessories for systems of platforms, scaffolds and similar metal structures, the inventor, being fully aware of the deficiencies, difficulties and safety problems existing in the systems for assembly of metallic structures that are currently available on the market, has attempted to study, design and manufacture various experimental elements, accessories, components and clamps, with the aim of solving some of the existing problems and difficulties. The result of this attempt is the present invention, which relates to a clamping mechanism basically comprised of a clamp (1) and a prop (2), suitable for use in scaffold systems and mounted with prefabricated or modular elements.
PRIOR ART OF THE INVENTION
The present invention finds a closest prior art in the following patent documents: JP 2010019055 A and CN
204552060 U. However this invention has the following advantages comparatively to the aforementioned state of the art:
Date Recue/Date Received 2020-09-24
- 4 -= correct and effective fastening between the various elements and components of a metal structure with several floors;
= possibility of forming floors at variable heights, and according to the heights required to carry out the works;
= possibility of erecting scaffold structures, not only in a straight line, but also with angular variations and deviations which are appropriate to the site, building or work.
SUMMARY OF THE INVENTION
It is thus the object of this invention a clamping mechanism, especially suitable for fixing scaffold systems, comprising a clamp (1) and a prop (2) simultaneously, which fit together by means of protrusions (6) and corners (8), wherein a plurality of the latter may be present, allowing several clamps to be used in the same prop.
DESCRIPTION OF FIGURES
Indication of reference numbers:
(1) Clamp;
(2) Prop;
(3) Fixed sector of the clamp (1);
(4) Movable sector of the clamp (1);
(5) Clamp's (1) locking and fixing teeth;
(6) Lower diameter protrusion in the inner face of the clamp (1);
(7) Clamp's (1) closure and locking pin;
Date Recue/Date Received 2020-09-24
(8) Peripheral cavity or corner in the prop (2) for fitting the clamp's (1) protrusion (6);
(9) Insulating sleeve applied to both ends of the prop (2);
(10) Bolt for fitting, joining and attaching props (2);
Figure 1 - exploded and perspective view of the set consisting of the prop (2) and the clamp (1), wherein the prop (2) has several corners (8). In the clamp (1) there are visibly a fixed sector (3) and a movable sector (4) which has three toothed ends (5), for closing the clamp completely by fitting the locking pin (7), also comprising in its inner face a protrusion (6) which engages the corner (8) of the prop (2), thereby securing the structures to which they are applied.
Figure 2 - front and rear views of the set comprised of the clamp (1) and the prop (2) fixed to one another, or fitted together, where their constituent elements are represented in the said position.
Figure 3 - Isolated representation of the prop (2) and the constituent elements thereof, more specifically the insulating sleeve (9) at the ends and bolt (10).
Figure 4 - isolated representations of the clamp (1) and the constituent elements thereof, in both front and top views.
DETAILED DESCRIPTION OF THE INVENTION
Date Recue/Date Received 2020-09-24 The present invention relates to a clamping mechanism which is now described in detail and which essentially comprises a clamp (1), having on its inner face an inner protrusion (6), of a smaller diameter than the diameter of the outer face of the clamp (1); and a prop (2), having on its outer face at least one corner (8), wherein when the clamp (1) is closed, its inner protrusion (6) engages in the corner (8) of the prop (2). This form of engagement of the inner protrusion (6) of the clamp (1) in the corner (8) of the prop (2) effectively solves the problem concerning a stable attachment of the scaffold to the props, without any chance of vertical sliding.
In addition, the clamp (1) is comprised of a solid and fixed sector (3) which is complemented by a movable sector (4), the said movable sector (4) being attached to the fixed sector (3) by an axis of rotation, and the movable sector (4) terminates with three ends each with a tooth (5), so that when the clamp (1) is closed the teeth (5) remain secured with a locking pin (7). This pin (7) firmly closes the clamp (1) and keeps the protrusion (6) of the clamp (1) fully engaged in the corner (8) of the prop (2).
The engagement of the inner protrusion (6) of the clamp (1) in the outer corner (8) of the prop (2) allows a solid positioning without vertical slides, but enabling horizontal rotation, if necessary, for angular adjustment in the alignment of the scaffold or of the structure.
Alternatively, the prop (2) can also have an internal insulating sleeve (9) at both ends, in which a metal bolt (10) is used for engaging the props. The present Date Recue/Date Received 2020-09-24 invention effectively solves the problem as regards the transmission of electric or static currents, in that the props (2) are isolated from one another by means of the insulating sleeve (9) applied inside the joining and engaging regions of the props (2), and if an electric or static contact occurs, the electric or static discharge is limited to the floor of the structure where the unexpected or accidental contact occurred.
Additionally, the prop (2) may have at least one corner (8), and preferably it may have at least two or more corners (8) spaced apart from each other by 5cm. This characteristic of a plurality of corners (8) in a same prop (2) solves the problem of poor fastening and fixing of the clamps currently used and also solves the problem of the use of complementary crates or step-ladders by workers on the scaffold floors.
As will be evident to a person skilled in the art, the present invention should not be limited to the embodiments described herein, and a number of changes are possible which remain within the scope of this invention. Of course, the preferred embodiments above described are combinable in the different possible forms, the repetition of all such combinations being herein avoided.
Date Recue/Date Received 2020-09-24

Claims (4)

- 1 -
1. Clamping mechanism characterized in that it comprises a clamp (1) and a prop (2), the clamp (1) having in its inner face an inner protrusion (6) and the prop (2) having in its outer face at least one corner (8), in which when the clamp (1) is closed, the inner protrusion (6) of the clamp (1) engages the corner (8) of the prop (2) preventing the assembly of the clamp (1) and the prop (2) from moving horizontally and vertically.
2. Clamping mechanism according to the previous claim wherein the clamp (1) comprises a solid and fixed sector (3) which is complemented by a movable sector (4), said movable sector (4) being attached to the fixed sector (3) by an axis of rotation, and the movable sector (4) terminates with three ends each with a tooth (5), so that when the clamp (1) is closed the teeth (5) remain secured with a locking pin (7) which locks the clamp (1) and keeps the inner protrusion (6) of the clamp (1) fully engaged in the corner (8) of the prop (2).
3. Clamping mechanism according to the previous claim wherein the prop (2) has on its ends an internal insulating sleeve (9) and a metal bolt (10) for fitting between several props (2).
4. Clamping mechanism according to the previous claim wherein the prop (2) has at least two corners (8) spaced apart from each other by 5cm.
Date Recue/Date Received 2020-09-24
CA3095133A 2018-04-04 2019-04-02 Clamping mechanism for scaffold systems Pending CA3095133A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PT110661A PT110661B (en) 2018-04-04 2018-04-04 CLAMP AND PLUMB FOR SCAFFOLDING SYSTEMS
PT110661 2018-04-04
PCT/IB2019/052689 WO2019193495A1 (en) 2018-04-04 2019-04-02 Clamping mechanism for scaffold systems

Publications (1)

Publication Number Publication Date
CA3095133A1 true CA3095133A1 (en) 2019-10-10

Family

ID=66647428

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3095133A Pending CA3095133A1 (en) 2018-04-04 2019-04-02 Clamping mechanism for scaffold systems

Country Status (4)

Country Link
EP (1) EP3779096B1 (en)
CA (1) CA3095133A1 (en)
PT (1) PT110661B (en)
WO (1) WO2019193495A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3955224A1 (en) 2020-08-14 2022-02-16 Nagravision S.A. Localized betting system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258549A2 (en) * 1974-01-18 1975-08-18 Abdellatif Ala Coupling for construction elements of shelving - has U-shaped with openings in arms receiving element locking pin
US4412370A (en) * 1981-06-19 1983-11-01 Speirs Graeme K Clamps
KR101306468B1 (en) * 2012-09-27 2013-09-17 하은정 Jig for supporting ship block
US9637931B2 (en) * 2013-10-30 2017-05-02 University Health Network Connector apparatus

Also Published As

Publication number Publication date
EP3779096B1 (en) 2024-08-07
PT110661A (en) 2019-10-04
EP3779096C0 (en) 2024-08-07
PT110661A1 (en) 2022-12-26
PT110661B (en) 2023-03-28
EP3779096A1 (en) 2021-02-17
WO2019193495A1 (en) 2019-10-10

Similar Documents

Publication Publication Date Title
CN109534183B (en) Tower crane attachment device
EP2378032B1 (en) Soft net containment
EP3779096B1 (en) Clamping mechanism for scaffold systems
GB2534092A (en) Scaffold clamps
US20100025151A1 (en) Integral safety system which can be used for construction
CA2242681A1 (en) Apparatus for adjusting a distance between two opposed form panels
US6799658B2 (en) Mobile outrigger scaffolding system
KR200482903Y1 (en) Lifeline mounting pole
GB2350859A (en) Scaffolding fixtures
WO2010060137A1 (en) Guardrail post support
EP1327733A2 (en) Module for cantilevered scaffolding
CN210086869U (en) Safety belt linkage for construction
DE19726102A1 (en) Retaining head for steel supports for reinforced concrete structures
CA2278086C (en) Adaptable safety rail system for flat roofs and parapets
CN218623192U (en) Temporary lap joint climbing frame for construction engineering construction
GB2511543A (en) Scaffolding clamp
JPH0428366Y2 (en)
KR101166795B1 (en) The railing prop where the establishment of bridge
CN218521619U (en) A assembled support for bridge construction
JPH0217083Y2 (en)
JP4688280B2 (en) Rebar safety band locking bracket
JPH0725970Y2 (en) Parent rope
EP0597384A1 (en) Scaffolding extension by means of a scaffolding console
JP3050686U (en) Stepladder and its anchor
US20030047385A1 (en) Mobile outrigger scaffolding system

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20240207

EEER Examination request

Effective date: 20240207