WO2012028636A1

WO2012028636A1 - Dent repair tool for dents and hail damage

Info

Publication number: WO2012028636A1
Application number: PCT/EP2011/064956
Authority: WO
Inventors: Oliver Redl
Original assignee: Dse Hagelreparatur - Redl Gmbh
Priority date: 2010-09-03
Filing date: 2011-08-31
Publication date: 2012-03-08
Also published as: DE202010012165U1; EP2611553A1

Abstract

The invention relates to a universal dent repair tool (1; 11) for straightening and reshaping vehicle body damage. According to the invention, the tool is composed of multiple extension elements (2; 3, 5, 6, 8, 9, 10; 16, 17, 18, 19, 20, 23). The invention allows for an optimal calibration and use of the tool set by means of individual tool extensions and the total length that is optimized thereby, and the work effort can be reduced to the necessary minimum by using the path of the tool.

Description

Denting lever for dents and hail damage

Buckles of conventional design, made of spring steel, carbon spring steel, steel tube or similar solid materials, have usually a fixed length and have firmly connected tips.

For buckling and reshaping of body damage buckling levers in different lengths, and with mostly fixed tips used. The buckling of the dents and deformations is based, with the help of the corresponding buckle lever, on routine, experience and working techniques, but also to a large extent on the use of manual force. To leverage and enhance leverage, in addition to manual pivot points, chain, squeegee or belt based supports are also used. Due to the fact that the forces required by it are applied only by muscle power, only a relatively small number of operations can be handled in a satisfactory frequency before fatigue of the operator significantly reduces the frequency of technically and theoretically affordable operations.

The invention has for its object to produce a universal lever whose overall length is changeable and adaptable to the application in order to achieve an optimization of the leverage. According to the invention this task is solved in that the lever is composed of a plurality of extension elements. This optimizes usable clearances and interspaces to achieve the best possible force conversion, without being cumbersome due to excess lengths and reducing the maximum force conversion.

With the invention is further achieved that by individual lever extensions, and thus optimized overall length, an optimal tuning and use of the lever set is achieved, which, adapted to the law of levers, with a constant work product, the manual force, by using the lever travel on the necessary minimum can be reduced.

As a material for the universal lever according to the invention spring steel, carbon spring steel, VA steel, carbon fiber, or similar solid materials is preferably used, and the diameter of the universal lever is approximately between 8mm and 40mm, preferably between 20mm and 25 mm. In this case, pipe material, due to the greater surface tension on the one hand, and weight reduction on the other hand, compared to rod material is preferred. According to claim 2, at least one extension element is designed as a cranked element with fixed or adjustable Kröpfungswinkel. The cranked extension element is preferably inserted between other extension elements, preferably tool side or handle side. The crank of a Hebelendstückes, part of a Wechselspitzenaufnahme, or alternatively by a handle, is achieved by the use of different Hebelendstücke with different prefabricated Kröpfungswinkeln, or by the use of an end piece with adjustable Kröpfungswinkel, thereby optimizing the amount of power by taking advantage of an optimally implemented Hebelweges, which is necessary by the lower rotational movement, is achieved, which has the minimization of the use of manual force application result.

According to claim 3 various advantageous grips are claimed, with which, in a space-limited work area, an optimization of the manual work force can be achieved. The use of different grips is on the one hand in direct relevance to the nature and depth of deformations to be processed, and the power conversion necessary thereby, and on the other hand also depends on the available manipulation space, which, in hard to reach body parts, can be significantly limited. The use of levers extending gripping arms, such as e.g. the pistol grip and the T-piece, allows the user to bring maximum force to the tool tip with deep deformations. The simpler and more manageable grips, e.g. The ball grip and the ring end are used when working out with a limited working area, which reduces the force that can be applied and must be compensated for by the number of repeated applications, but the handling and ease of use is significantly improved in the long term.

According to claim 4, one of the extension elements is designed as a tool receiving and tail, wherein the Werkzeugaufnahme- and tail either has a fixed Ausbeulspitze and an attachment for attaching a tool end piece, or is provided on both sides with an attachment for attaching a tool tail. By using a tool holder which can be fitted on both sides, two different tool end pieces can be placed or screwed on at the same time, as a result of which the bulge lever is adapted individually to the conditions of the respective deformations. Thus, the attachment for attaching a tool tail about various forms of Werkzeugendstücken, ie about convex, concave, round, pointed or curved, are mounted, which made of hard and metallic materials such as tool steel, aluminum and other materials having a hardness greater than that of the material to be machined, or of softer materials such as hard rubber, plastic, foam rubber or Other materials with a hardness softer than that of the material to be processed, may be formed.

According to claim 5 is a hydraulic or pneumatic cylinder, preferably a double mini cylinder with return spring, or an electric actuator, mounted on the Werkzeugaufnahme- and tail. As a result, the total manual force to be expended can be reduced by electrical, pneumatic or hydraulic power. On the piston of the cylinder, the tool end is mounted, which is pressed by operating a control slowly and along a Y-axis against the deformation auszubulende, or acts on actuation by an interval control by vibration along a Y-axis on the auszubelopende deformation, whereby Deformations bulged , And by moving the Ausbeulhebels along an X-axis and larger deformations complex processed and restored to its original shape. The frequency of the cylinder or the actuator is controlled by its own control.

According to claim 6, the force conversion takes place along the Y-axis by a pneumatic or hydraulic or driven by an electric motor swivel cylinder. The cylinder or the motor rotate the patch, fixed and asymmetrically shaped tool end, wherein it is essential that the movement of the tool end is limited only to a rotary and pivotal movement, as created by axial movements uncontrollable force and resulting, unwanted deformations of the sheets could. Alternatively, it can be achieved by a second switching or pulse step that the force acting on the rotating tool end pieces by vibrations, which are caused by fast forward and backward rotational movements, on the auszubulenden deformations and a regression of the dents. The rotation frequency is controlled by a separate control element.

An embodiment of the invention will be explained with reference to Figures 1 to 15. Show it:

1 a buckle lever for manual buckling of dents,

2 a stretched extension element,

3 and 4 a cranked extension element,

5 to 8 different versions of a handle,

9 shows a Ausbeulhebel with pneumatic cylinder and tool tail,

10 to 14 different versions of the tool receiving end piece, and

Fig. 15 shows another embodiment of a handle. In Figure 1, a Ausbeulhebel 1 is shown for manual buckling, which consists of a pistol grip piece 2 which is axially rotatable, a cranked lever member 3, the Kröpfungswinkel 4 is adjustable, an extension member 5, and a Werkzeugaufnahme- and tail 6, on which a conical Tool end piece 7 is mounted with a Ausbeulspitze, is composed. The pistol grip piece 2, the lever element 3, the extension element 5 and the tool receiving and end piece 6 in this case form extension elements. At least one of these extension elements can be designed as a cranked extension element 3 with a fixed or adjustable crank angle 4 (FIGS. 3 and 4). The cranked extension element 3 is preferably inserted between other extension elements, preferably on the tool side or handle side.

Different designs of grips are shown in FIGS. 5 to 8, whereby an optimization of the manual working force can be achieved in the case of a limited working area. The use of leverage elongating handles, such as e.g. in the form of a T-handle 8 (FIG. 5), the pistol grip 2 (FIG. 6), a ball grip 9 (FIG. 7), or a ring end 10 (FIG. 8) allows the user maximum power at low To bring deformations to the tool end piece 7.

In Figure 9, a Ausbeulhebel 11 is shown with a pneumatic power assist cylinder 12, which consists of a pistol grip piece 13, which is equipped with a first control element 14 for extending the piston, and a second control element 15 for controlling vibration pulses and axially rotatable. Furthermore, the Ausbeulhebel 11 of an extension member 16, a cranked lever member 17 with a fixed offset angle, and a Werkzeugaufnahme- and tail 18 is composed. The power assist cylinder 12 consists of a double-acting mini pneumatic cylinder with spring return, on which the tool end piece 7 is mounted with a Ausbulspitze. The pistol grip piece 13 with the operating elements 14 and 15 and an extension element 19 is shown in FIG.

In Figures 10 and 11 different versions of Werkzeugaufnahme- and end pieces are shown. The tool receiving and end piece 20 may either have a fixed Ausbeulspitze 21 and an attachment 22 for fixing the tool end piece 7 (Fig. 10), or be provided on both sides with a cap 22 for attachment of the tool end piece 7 (Fig. 11). By using a tool holder which can be fitted on both sides, two different tool end pieces 7 can be placed or screwed on at the same time, as a result of which the bulge lever can be individually adapted to the conditions of the respective deformations. So can on the Attachment 22 for attaching the tool end piece 7 about different shapes of Werkzeugendstücken 7, ie approximately convex, concave, round, pointed or curved, are mounted, which made of hard and metallic materials, such as tool steel, aluminum and other materials having a hardness greater than that of the material to be machined, or of softer materials such as hard rubber, plastic, sponge rubber or other materials having a hardness softer than that of the material to be processed, may be formed.

FIG. 12 shows an embodiment of a tool receiving and end piece 23 with a hydraulic or pneumatic cylinder, or an electric actuator. As a result, the total manual force to be expended can be reduced by electrical, pneumatic or hydraulic power. On the piston of the cylinder, the tool end piece 7 is mounted, which is pressed by operating the first control element 14 slowly and along a Y-axis against the auszubigende deformation, or, when actuated by the second control element 15 by means of vibration along the Y-axis on the to be exempted deformation acts whereby deformation deformed and machined by moving the Ausbeulhebels 11 along an X-axis and larger deformations complex and brought back into the original shape. The frequency of the cylinder or the actuator is controlled by its own control.

In FIGS. 13 and 14 it is shown that the force conversion along the Y-axis can take place by means of a pneumatic or hydraulic or a swivel cylinder driven by an electric motor. The cylinder or the motor rotate the patch, fixed and asymmetrically shaped tool tail 24, wherein it is essential that the movement of the tool end 24 is limited only to a rotational and pivotal movement, as uncontrollable by axial movements force and resulting, unwanted deformations of the Sheets could arise. Alternatively, it can be achieved by a second switching or pulse step, that the force acting on the rotating tool end pieces 24 by vibrations, which arise by fast forward and backward rotational movements, on the auszubulenden deformations and a recovery of the dents. The rotation frequency is controlled by a separate control element.

Claims

Claims:

1. buckle universal lever (1, 1 1) for buckling and reshaping of body damage, characterized in that the lever (1, 11) of a plurality of extension elements (2, 3, 5, 6, 8, 9, 10, 13, 16 , 17, 18, 19, 20, 23).

2. buckle universal lever (1; 1 1) according to claim 1, characterized in that at least one extension element as a cranked element (3; 17) is designed with a fixed or adjustable Kröpfungswinkel.

3. buckle universal lever (1; 11) according to claim 1 or 2, characterized in that one of the extension elements as a handle in the form of a T-handle (8), a pistol grip (2), a ball handle (9), or a Ringendstückes (10) is executed.

4. buckle universal lever (1; 1 1) according to any one of the preceding claims, characterized in that one of the extension elements as a tool receiving and end piece (6; 18, 20) is executed, wherein the Werkzeugaufnahme- and tail (6, 18, 20) either via a fixed Ausbeulspitze (21) and an attachment (22) for attachment of the tool end piece (7) has, or on both sides with an attachment (22) for attachment of the tool end piece (7) is provided.

5. buckle universal lever (11) according to claim 4, characterized in that a hydraulic or pneumatic cylinder, preferably a Doppelminizylinder (12) with return spring, or an electric actuator on the Werkzeugaufnahme- and tail (18) is mounted.

6. buckle universal lever according to claim 4, characterized in that a hydraulic or pneumatic swing cylinder, preferably with return spring, or an electric motor is mounted on the Werkzeugaufnahme- and tail, which puts the tool end piece (24) in asymmetric rotation.