Socket wrench head for spark plugs

Claim 2

A socket wrench head for spark plugs with terminals, which comprises in combination: a socket wrench head body having a hollow shank, and also having a first end portion for engagement with means for actuating said wrench head body and also having a second end portion axially opposite said first end portion for receiving the spark plug to be handled, said shank being located between said first and second end portions, a guiding sleeve arranged within said shank and having a bore extending in the axial direction of said shank for receiving and embracing only the terminal of a spark plug to be handled by said wrench, and a permanent magnet arranged within said second end portion for holding a spark plug introduced into said second end portion.

Claim 3

A socket wrench head for spark plugs with terminals, which comprises in combination: a socket wrench head body having a hollow shank, and also having a first end portion for engagement with means for actuating said wrench head body and also having a second end portion axially opposite said first end portion for receiving the spark plug to be handled, said shank being located between said first and second end portions, a guiding sleeve arranged within said shank and having a bore extending in the axial direction of said shank for receiving and embracing only the terminal of a spark plug to be handled by said wrench, and a permanent magnet arranged within said second end portion for holding a spark plug introduced into said second end portion.

Claim 4

A socket wrench head for spark plugs with terminals, which comprises in combination: a socket wrench head body having a hollow shank, and also having a first end portion for engagement with means for actuating said wrench head body and also having a second end portion axially opposite said first end portion for receiving the spark plug to be handled, said shank being located between said first and second end portions, a guiding sleeve arranged within said shank and having a bore extending in the axial direction of said shank for receiving and embracing only the terminal of a spark plug to be handled by said wrench, and a permanent magnet arranged within said second end portion for holding a spark plug introduced into said second end portion.

Claim 5

A socket wrench head for spark plugs with terminals, which comprises: a socket wrench head body having a hollow shank, and also having a first end portion for engagement with means for actuating said wrench head body and also having a second end portion axially opposite said first end portion for receiving the spark plug to be handled, said shanK being located between said first and second end portions, a guiding sleeve arranged within said shank and having a bore extending in the axial direction of said shank for receiving the terminal of a spark plug to be handled by said wrench, and a permanent magnet arranged within said second end portion for holding a spark plug introduced into said second end portion, a compression spring being mounted between said first end portion and said guiding sleeve, and said bore having at least two steps of different diameters, said guiding sleeve being displaceably mounted in said shank and being movable against the thrust of said compression spring.

Claim 6

A socket wrench head for spark plugs with terminals, which comprises: a socket wrench head body having a hollow shank, and also having a first end portion for engagement with means for actuating said wrench head body and also having a second end portion axially opposite said first end portion for receiving the spark plug to be handled, said shanK being located between said first and second end portions, a guiding sleeve arranged within said shank and having a bore extending in the axial direction of said shank for receiving the terminal of a spark plug to be handled by said wrench, and a permanent magnet arranged within said second end portion for holding a spark plug introduced into said second end portion, a compression spring being mounted between said first end portion and said guiding sleeve, and said bore having at least two steps of different diameters, said guiding sleeve being displaceably mounted in said shank and being movable against the thrust of said compression spring.

Claim 7

A socket wrench head according to claim 2, in which said shank has a shoulder, and said guiding sleeve has an annular flange, said compression spring being spirallyshaped and interposed between said shoulder and said flange.

Claim 8

A socket wrench head according to claim 2, in which said guiding sleeve is made of synthetic material.

Claim 9

A socket wrench head according to claim 2, in which said first end portion is annular and has its interior wall designed for receiving and fitting a square head of a wrench, and in which said second end portion is annular and has its inner wall hexagonally shaped in a hexagonal section for receiving a hexagonally shaped portion of a spark plug, the section between said first and second end portions being cylindrical and forming said shank.

Claim 10

A socket wrench head according to claim 5. in which said permanent magnet is mounted within the region hexagonal section of said hexagonally shaped inner wall.