WO2017152253A1

WO2017152253A1 - Mobile expandable device for holes and use thereof

Info

Publication number: WO2017152253A1
Application number: PCT/BR2017/050050
Authority: WO
Inventors: Eduardo ROMEIRO FILHO; Felipe Celso LINHARES FERREIRA
Original assignee: Universidade Federal De Minas Gerais - Ufmg
Priority date: 2016-03-11
Filing date: 2017-03-10
Publication date: 2017-09-14
Also published as: BR102016005498A8; BR102016005498A2; BR102016005498B1

Abstract

The invention relates to a mobile expandable device for securing into holes, which combines the functions of attachment to and release from a hole when actuated, such that it can be re-used multiple times in various locations and with different materials, and is useful as a climbing, hoisting, moving and securing equipment.

Description

MOBILE EXPANSIVE DEVICE FOR HOLES AND USE

[001] The invention relates to a mobile expandable hole device which combines the function of locking and detaching from the hole by means of its activation, thus providing its use several times in different places and in different materials, which may be used as climbing, lifting, moving and securing equipment.

[002] Currently, existing fasteners are permanently installed in their place of use, making them fixed and therefore unusable elsewhere. When there is an attempt to remove these fasteners from their locations, they are also mostly unusable.

[003] The present invention is a mechanical device that transforms, by its shape, circular motion into linear and radial motion. The problem that the invention is intended to solve arose from a need observed by some climbers, given the difficulty in climbing vertical and negative walls that have little or no grip, requiring devices that provide them with greater agility, safety and economy.

These climbers currently need to drill the rock and install parabolt type pins. with varying thicknesses, which are installed on site without the possibility of removal, increasing climbing costs and increasing its environmental impact. Also, the installation of parabolts. requires other tools such as hammer and dowels. For this installation the climber needs to use both hands, a process that is guided by the need for safety to prevent the climber from falling.

[005] In industry, there are a number of difficulties in joining parts and equipment, as well as the transportation and movement of cargo, inside and outside a factory. The present invention can be used for clamping parts or equipment for lifting, moving and clamping, requiring only a guide hole (often already present in parts). Currently, bolts and lifting eyes are commonly used, which require threaded holes and tools for their fixing in the case of bolts. [006] The FR20040000056 patent document entitled ^{^} Mechanical cam chok is climbing or mountaneering _^, refers to a fastener for climbing having eccentric shafts relative to his point of support and actuating force, which tends to revolve relative to its tip resting on the rock face. This causes it to begin to spin and force its opposite side more and more into the rock wall according to the established force. As the force increases, the more stuck the device will be in the rock. Unlike patent document FR20040000056, the present invention features a mechanism (Figures 1 and 2) that fixes the device to the surface, which comprises tubular-shaped moving parts (3), (4) and (5), in addition to being Reusable.

[007] The proposed device requires only one hole for its fixation. It can only be installed with one hand and does not require any other tools for expansion within the hole. Soon after use, it can be uninstalled as easily as it was installed. No waste is left in the environment, and the equipment can be used again and again.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is a side view of the device, with partial section.

Figure 2 represents an exploded view of the device.

DETAILED DESCRIPTION OF TECHNOLOGY

[0010] The invention relates to a mobile expandable hole device which combines the function of locking and detaching from the hole by means of its activation, thus providing its use several times in different places and in different materials. be used as climbing, lifting, moving and securing equipment.

The proposed technology is represented by figures 1 and 2 and corresponds to a mobile expandable hole fastener, characterized in that it comprises a housing (2) with a coupling hole (10) with other equipment; an axle (1) which interfaces the three tubularly shaped moving parts (3), (4) and (5); an eccentric shaft (7); a part (6) that supports the eccentric shaft pressure that limits the movements of the three tubular moving parts (3), (4) and (5e) a component which secures the eccentric shaft (7) to the housing (2), preferably a lock washer (8) and a nut (9). Optionally, the housing may contain a fixing hole (1 1) and / or an eccentric shaft drive part (7) in the housing (2).

Tubular shaped parts are characterized by being made of a rigid material on the outside and hollow inside, providing their engagement with the shaft (1).

The movements of the three tubular-shaped moving parts (3), (4) and (5) are performed mechanically by the user by driving the eccentric shaft (7) which secures or releases the hole device, which makes him mobile. The actuation of this eccentric shaft causes the three tubular shaped pieces to move out of their initial position and move radially to the axis (1) between them, causing expansion within the hole and consequently their fixation by means of friction and abrasion between the three-piece tubular-shaped materials and the hole. By operating this eccentric shaft in the opposite direction, the cylinders can be returned to the initial position, thus removing the fastener from the hole, retaining all its initial characteristics.

The mobile borehole expansion device can be used for fixing it to holes in surfaces of rocky, metallic, polymeric or any other solid material. From this attachment to one end of the expansive fastener, the other end may be attached to climbing equipment, load lifting equipment, or any other type of device or equipment that may be used to move or not to move the fixed material. . With this, the mobile expansive fastener can be used for the purpose of fixing or moving loads, people, materials or any other type of object.

[0015] The present invention allows the contact areas that generate the fixation of the device in the hole to be reversibly expanded and contracted by means of a mechanical system, thus providing its use several times in different locations and in different materials, maintaining its mechanical characteristics and thus becoming reusable. The invention may be better understood by the following non-limiting example.

Example 1 ^~ Device Playback

In order to exemplify the proposed device, one can observe in Figure 1 and 2 the housing (2) with its coupling hole (10) and its fixing hole (11), the main shaft (1) connected the movable tubular parts that have been constructed in the form of cylinders (3), (4) and (5), the part that will assume the eccentric shaft pressure, represented by the washer (6) and the eccentric shaft with its drive lever (7), in addition to the lock washer (8) and lock nut (9), all made of metal.

Its operation consists in the introduction by the user of the three movable cylinders (3), (4) and (5) in the hole of the material to be fixed, and then its cylinders (3) are expanded, (4) and (5) by turning the eccentric lever (180) 180 °. This lever has on its eccentric axis (7) a meat _^ with a 1ift_. This meat. it is connected to the mainshaft (1) through a hole in that mainshaft (1), and moves when the lever is turned and is pressed against the shaft. In this way, the threaded cylinder (3) at the end of the mainshaft (1) is moved along with it as the two are threadedly engaged. This movement of the threaded cylinder (3) compresses the center cylinder (4) against the base cylinder (5) and the main washer (6) of the equipment such that the central cylinder (4) moves radially, sliding through the chamfers between them, thus generating an expansion against the wall, thereby creating the frictional force necessary to secure the apparatus to the hole material.

The movement of the cylinders (3), (4) and (5) and their consequent expansion in the hole is varied according to the thickness of the washer (6) that exists between the base cylinders (5) and the housing ( 2) the equipment. The thicker this washer, the greater the expansion, and the smaller the thickness, the opposite will be true. The washer can be manufactured in various thicknesses and shapes, aiming to generate a certain result. This is because the washer (6) restricts the linear movement of the cylinders (3), (4) and (5), so that the Center cylinder (4) is compressed by the base (5) and threaded (3) cylinders, moving away from the previously inserted center axis (1).

The cylinders (3), (4) and (5) are intended to adhere to the material bore to thereby generate a frictional force contrary to the tensile forces that will act on them. Due to this need, grooves were fabricated on their surfaces to increase their adherence with the hole material, as any irregularity in the hole surface will be set in the edges of these grooves, thus obtaining resistance to breakage of this point of the hole. thus avoiding undesirable undercutting of the workpiece when it is expanded and in use by the user.

[0021] Its use with the assembled equipment consists primarily of inserting the tip of the assembled equipment consisting of items (3), (4) and (5) into a hole, in the rock or any other material please fix with the same outside diameter. Then rotate the eccentric shaft drive lever (7) 180 degrees by moving the mainshaft (1) and driving the movable rollers expansion drive (3), (4) and (5). This expansion generates compression and reaction within the hole, increasing frictional force between the hole surface and the surface of the fastening equipment. Through the fixing hole 11 is inserted a rope or string, thus generating a fixing point between the mobile device for holes and the material to be fixed and / or moved.

Claims

1 . Mobile expansion device for holes, comprising a housing (2) with a coupling hole (10) with other equipment; an axle (1) which interfaces the three tubularly shaped moving parts (3), (4) and (5); an eccentric shaft (7); a part (6) supporting the eccentric shaft pressure; and a component that secures the eccentric shaft (7) to the housing (2).

Mobile expanding hole device according to Claim 1, characterized in that the three tubular-shaped moving parts (3), (4) and (5) are preferably made of rigid material on the outside and hollow inside, providing its fitting on the shaft (1).

Mobile expansion device according to claim 1, characterized in that the component which secures the eccentric shaft (7) to the housing (2) is preferably a washer (8) and a nut (9).

Mobile expanding hole device according to Claim 1, characterized in that it optionally comprises a fixing hole (11) and / or an eccentric shaft drive part (7) in the housing (2).

Mobile expanding hole device according to claim 1, characterized in that it can be reused several times in various locations and in different materials without losing its mechanical characteristics.

Use of the mobile borehole expansion device defined in claim 1, characterized in that it is for attachment to holes present in surfaces of rocky, metallic, polymeric or any other solid material.

Use of the mobile expandable hole device defined in claim 1, characterized in that it is for attaching climbing equipment, load lifting equipment, or any other type of device or equipment to be used for moving or not moving the material. fixed.