DE2912826A1 - Compact pair of electrical probes packaged for portability - are used for voltage or short circuit testing and clamped together, when not in use, by magnets - Google Patents

Abstract

The two probes are each housed in a handgrip and are held together when not in use by a pair of magnets or by a magnet and an iron pole. The electrical lead connecting the two probes can be stored by wrapping it around two posts on the side of one of the probes. A mechanical hinged link may be used to connect the two probes instead of the magnets, and various alternative methods of storing the lead are given. The probes may or may not be identical and one may have a touch switch on the side to initiate the test. The probes are neatly packaged but quickly prepared for use.

Description

Patent description.

The invention relates to an electrical test device consisting of two Handle to carry the test electrodes and between which a movable electrical There is an advertising connection in which the electrically active components are inserted enable electrical voltage, continuity and the sense of rotation of rotary electricity systems to consider.

Purpose: Such electrical test devices, which are known under the designations Voltage tester, voltage finder, continuity tester, rotating field direction indicator and Multiple testers are known, are used for orienting tests on electrical systems and devices on the respective property.

Such test devices are used in all branches of electrical engineering, preferably as an aid for assembly and troubleshooting.

State of the art: Such devices are commercially available; it will various methods of displaying the test result are used, such as electromagnetic Systems with pointer and scale, electro-optical systems with glow lamps, incandescent lamps or light emitting diodes or with liquid crystal displays.

The devices contain a voltage source for continuity tests. There are devices for single test tasks and combined devices.

Criticism of the state of the art: Common to all devices known today is that they consist of two handles with test electrodes and that the two Handles are connected to each other by a movable line for transport and the storage of the devices however a special bag is required, whereby no winding device is provided for the movable line.

Task: The invention is based on the task of a special Bag for keeping the device avoidable and the device parts Can be folded up into a compact, transport-friendly form, but is also quickly ready for use close.

Solution: This task is explained in the characterizing part of the claims 1 to 10 specified features solved.

Achievable advantages: With the invention, the over a movable Line connected device parts when not in use in a permanent defined Bred position to each other and set the movable line so that they when Transport and storage is not disturbed and protected.

On the other hand, the use of the device is not hindered, even simplified, since it does not have to be removed from a pocket, in a further embodiment the mostly needle-shaped test electrodes are also covered when the device is collapsed, which on the one hand the electrodes from damage and on the other hand protects the user from injury.

Exemplary embodiments: Figures 1 to 6 show exemplary embodiments the invention.

In Figure 1 is the simplest implementation of the inventive concept shown. One handle of the tester (1) carries on its sharpened one At the end of a test electrode (3), the touch electrode (4) on his body and on the At the other, rounded end, the movable, insulated cable emerges here consists of a cable or a so-called electric cord. The handle (1) has two hooks (6) protruding on one side in the same direction, but in opposite directions are turned.

When the device is not in use, the cord (5) can be hooked over these hooks be wound up. The second handle attached to the other end of the cord (5) (2), which carries the second test electrode (3), can with a magnet (7) in this way to the counterpart (8) made of iron or an oppositely polarized magnet (), which is attached to the body of the first handle (1), that the The axes of the handles (1, 2) are parallel. This is how the tester is put together into a compact block.

To avoid the string from being coiled after use, chin the insulated moving line consist of a steel band, that is in you kind the tape measure, tries to roll itself up into a spiral.

In Figure 2, this embodiment of the invention is shown, and although the steel band (9) is wound into a double spiral, so that both Ends of the steel band are on the outside.

A housing (1û) is used to guide the steel strip when it is rolled in and out. The user only needs to take the two handles (1,2) and put them in the to pull apart the desired dimensions. The steel band will be made up to the same extent let the housing pull.

As soon as the user lets go of just one handle, the steel band has it the effort to curl up in a spiral again until both ends of the handles (1, 2) hit the housing (10).

The embodiment of the invention shown in Figure 3 is special Suitable for retrofitting test devices that are required for the application the invention were not previously provided. According to the invention is shown in FIG special component (11) is provided on which the cord (5), the two * d handles (1, 2) connects, can be wound up. This component (11) also carries on each Side a magnet (8) and the handles (1, 2) are iron parts or also Magnets (7) attached. So the two handles (1,2) left and right are held on the component (11) by magnetic force and are easy to use to decrease.

Another solution to the concept of the invention is shown in FIG. The two handles (1,2) are in this case not by a cord, but connected to one another by two rails (12, 13). The rails are at the ends the handles (1,2) are articulated and are also articulated to one another.

The arrangement is similar to the known design of folding rules (Folding rule). The rails are made of insulating material and contain an inside Current path, which is also routed in a suitable manner via the joints. The user can unfold the two handles (1,2) and the test electrodes without much ado (3) Set at a suitable distance from one another for the test task at hand.

After use, the whole arrangement can be quickly folded up again, in which case the protective cover (14) comes to liex conditions in such a way that the test electrodes are covered and there is no risk of them being damaged during transport or the user could be injured.

The reduction of the inventive idea to the simplest rormt shows Figure 5. The two handles (1 2) are here alternately on the two Articulated ends of a rail (15).

By folding down in the same direction, both handles (1,2) are parallel to each other and perpendicular to the rail (159 Handles (1, 2) can then be used to open the test extrodes over a wide range the distance between the contact points set on the test object.

After use, both handles (1 2) are again in parallel position brought to the rail (15), in which case the test electrodes are removed from the protective covers (14 ', 14t ') and safe handling and transport is possible.

The rail (15) is also made of insulating material here and contains the connecting current path inside.

The rail (15) in Figure 5 can also be designed as a hollow body, such as shown in Figure 6, but Figure 6 includes yet another variation.

The two handles (1, 2) are here on two different components, namely the hollow body (16) and the rail (15) attached. Both of the latter Parts (s, 16) are in turn connected to one another in an articulated manner. This hollow body (16) is used to install the electrical components for the test circuit and - for continuity testers - also to accommodate a battery.

Since the two handles (1, 2) in this version by two articulated Intermediate parts are connected, there is a better handling and an extended Possibility of adjusting the two test electrodes (3) to one another, compared to the version, which is shown in FIG.

Claims (11)

@ .: Patent application for an electrical test device claims SUBMITTED Electrical test device, consisting of two identical or different large handles (1, 2), each of which has a test electrode (3) at one end and one of which can be provided with a touch electrode (4) and of which one or both serve to use the electrically effective components for voltage and / ocJer continuity test as well as rotating field direction display to record and the connected to one another in this way via one or more isolated electrical current paths are that it is possible to change the distance between the test electrodes, characterized in that the one handle is designed (6) that the isolated current path connecting both handles, the movable line 45) is carried out, can be rolled up and that both handles (7) or a magnet is attached to one handle and an iron part (s) to the other (are) in such a way that both handles are parallel to their longitudinal axis by magnetic force let stick together. 2. Electrical test device according to claim 1, characterized. that on one of the handles (1, 2) or both mechanical connecting means (E, 7) are provided which, acting by spring force or positive locking, make it possible to connect the two handles parallel to their longitudinal axes and to let go again. 3. Electrical testing device according to claim 1, characterized in that that the electrical current path connecting the two handles consists of an insulated curved resilient steel band (9), which is wound in a double spiral, that both ends are on the outside and this spiral is arranged in a housing (s). 4. Electrical test device according to claim 1 and 2, characterized. that the electrical current paths as an insulated moving line (5) are executed and a component (11) separate from the two handles (1, 2) is present is through which the movable line (5) passed or attached to it is and on which the bewaglicne line can be wound and that on this Component (ii) and on the handles (1, 3) or on two or one of these three elements mechanical connecting means (7, 8) are provided which, by spring force or Acting positively, the separate component and the two handles make it possible to connect with each other parallel to their longitudinal axes and to detach them again. 5. Electrical test device according to claim 1 and 4, characterized in that that the component (11) separated from the handles and onto which the movable line can be wound up, made of iron or carries magnets (8) and that the handles either magnets or iron parts (7) with which they are lifted to the separated component can be attached by magnetic force. 6. Electrical test device according to claim 1, characterized in that that the electrical current path, which connects both handles, in (12,13) at least two rails connected in series / made of insulating material, which run along their Ends are hinged together in such a way as to be by foldable scales (Limb rods) is known and that the first rail (12) with its beginning articulated on one handle (1) and the last rail (13) is also hinged at its end to the other handle (2). 7. Electrical test device according to claim 6, characterized in that that one or two rails (13) at the end that is not attached to a handle carries a protective cover (14) which grips around the test electrodes (3) when the two handles (1, 2) are placed closely together parallel to their longitudinal axis. 8. Electrical test device according to claim 1, characterized in that that the two handles (1, 2) are alternately articulated at the ends of a rail (15) are fastened and the rail (45) carries protective covers (14 ', 14 ") at both ends, which then encompass the test electrode (3) when the respective assigned handle is folded in its longitudinal axis parallel to the rail (15). 9. Electrical test device according to claim 8, characterized in amark. that the rail (), which connects both handles (1, 2), as a hollow body (16) is executed and is used to accommodate electrical structural and display elements. 10 Electrical test device according to claim 9, characterized in that that the hollow body () is designed to be divisible and that the hollow body is an insulated, contains movable wire that is folded or coiled and that carries the electrical Establishes a connection between the R9rXi * JX handles (1, 2), even if the two parts of the hollow body () attached to one handle each are removed from each other will. 11. Electrical test device according to claim 6, 7 and 9, characterized in that that the two handles (1, 2) have at least one hollow body (16) and at least a rail () made of insulating material (is) in which the electrical current path runs, articulated in the manner of a folding rule. are connected to one another and all of them Let parts fold together in such a way that their longitudinal axes are parallel or approximately read parallel to each other.