DE1983455U - SHOE. - Google Patents

Description

.M., 1.12.1967 Π ■ 'A 82 G 7 - / Bu

P. ng. K _0! Fourth Bröderna Sandgren trätoffelfabrik off patent attorney

^ nkfi-rt / M .. N " _u , Mainzeratr. 4-42 PARYD ,

(Sweden)

SHOE

The invention relates to a shoe with an electrically insulating sole and heel.

The use of such shoes is apt, both the body as well as the body-worn garments are charged with static electricity which will, etc. by the friction of clothing against the body or against the furniture fabrics produced. And not directly in front of _s that, at Earth can be diverted through the ι ^: _{Ci shoes 5} as these isolate the body from the floor or the earth. Especially with the RB / cn use of the now so common garments made of synthetic

static electricity can be significant. If you come into contact with any earthed object or person or object with a potential other than your own in a charged state, a discharge occurs to compensate for the potential difference ₅ and this discharge is felt as a sometimes quite powerful electrical shock.> If it occurs directly from a part of the body can be felt in an extremely uncomfortable way. The spark produced during the discharge can also represent a great danger in rooms where explosive or highly flammable vapors are present.

To eliminate this disadvantage, one has formerly one for shoes of the type described above electrical connection between a wear layer made of electrically conductive rubber material on the sole and / or the heel and one on the top of the shoe bottom arranged electrically conductive 'j

"■" .- ■ -. . ... j plate arranged with exposed upper side. Invention j

In accordance with this, the improvement is achieved in such a shoe suggested that the electrical connection

J includes a high-resistance resistor which is laid in its entirety in a hole penetrating the shoulder.

With a shoe designed in this way, the

O _

Static electricity generated by the electrical connection between the plate, which is in contact with the foot in the shoe, and the electrically conductive rubber material which forms the wearing layer and which is in contact with the floor or the earth, flow off continuously, so that a discharge of the Body and clothing cannot occur. At the same time, however, the shoe is sufficiently insulating to - in the event _/ that the user has a live installation

(Piwe)

line or utensil come into contact should - any current through the body between the conductor or object and the earth to a safe value, as the resistance contained in the electrical connection is a high resistance.

To explain the invention, a wooden shoe designed according to the invention will be referred to below of the drawing, which shows the wooden shoe in side view.

The wooden shoe shown has "in a known manner a wooden floor 1O ₃ which forms the sole and the heel of the wooden shoe, and an upper leather 11 attached to the wooden floor. A wear layer 12 made of rubber is attached to the sole, while a wear layer 13 is attached to the heel is that also out

There is rubber, but in the present Pail it should be of the special type that is electrically conductive. In the top of the shoe bottom a small circular brass plate l4 is embedded, the top of which is flush with the top of the shoe bottom or protrudes slightly above the same , and between the plate 14 and the wear layer 13 consisting of electrically conductive rubber is an electrical in a hole in the heel housed conductive connection 16 comprising a high resistance 17 of, for example, 0.25 mil or more. A copper foil 18 in the shape of a square with a side of 2 to 3 cm and a thickness of O ₃ 2 to 0.7 m is inserted between the wooden floor 10 and the wear layer 13. The electrically conductive connection 16 is passed through the copper foil and lies against its outside. The copper foil improves the electrical contact between the electrically conductive connection and the wearing layer. This electrical high-resistance connection between the top of the wooden floor and the wear layer on the heel forms an effective leak for discharging any static electricity that is generated on the wearer of the wooden shoe, the advantages described above being achieved.

The invention is of course not

limited to wooden shoes, but can be any within the scope of the following protection claims for shoes Kind be applied.

Claims (2)

A. 6 SC H UTZA N PROVERBS 1. Shoe with electrically insulating sole and heel and with an electrical connection between a wear layer consisting of electrically conductive rubber material on the sole and / or the heel and _ _v one arranged on the top of the shoe bottom electrically conductive plate with exposed top, characterized in that the electrical connection (l6) comprises a high-resistance resistor (17), which is shown in its entirety is laid in a hole (15) penetrating the paragraph. 2. Shoe according to protection claim I _5, characterized in that a metal foil (18) is switched on between the wear layer (13) and heel, which lies against the outside of the metal foil RB / cn electrical connection (16) is penetrated.