JP3162667U - Fully insulated ratchet spanner - Google Patents

Abstract

A fully-covered insulated ratchet spanner is provided. The fully-covered insulated ratchet spanner includes a spanner body and a ratchet fitting unit. The outer surface of the spanner body is covered with an insulating layer, and the spanner body penetrates the top and bottom surfaces. An outer ring convex portion 16 provided with a perforation and annularly insulated around the perforation at the upper surface is provided so as to project, and the ratchet fitting unit is placed during the perforation of the spanner body. And an outer diameter of the outer ring convex portion. As a result, the insulation test can be passed smoothly and the safety of the operator can be ensured. [Selection] Figure 2

Description

  The present invention relates to a kind of spanner, and more particularly to a fully-covered insulated ratchet spanner.

  In general, a spanner is made of metal because it requires good rigidity and strength, but the handle portion of the spanner is covered with an insulator (rubber or plastic) to prevent the risk of electric shock during use.

  However, the spanner having an insulating effect on the handle portion described above does not have any insulation design in other portions, so that a situation may occur where an electric shock is caused by inadvertent contact during use.

  For this reason, there are now fully-covered insulated ratchet spanners on the market. Please refer to FIG. It is of a ratchet spanner type, the entire spanner body 1 is covered with an insulator, the ratchet fitting unit is inserted into a perforation 2 formed in the spanner body 1, and a fitting portion at one end of the ratchet fitting unit 3 protrudes from the outside of one end of the perforation 2, and the pressing portion 4 at the other end of the ratchet fitting unit is exposed outside the other end of the perforation 2. Since the fitting portion 3 must have a dimensional accuracy and maintain a predetermined rigidity, the fitting portion 3 must have a metal outer surface, the pressing portion 4 is made of an insulating material, and the pressing portion 4 is pressed. The positioning bead 5 of the fitting part 3 is released, and the fitting part 3 is allowed to escape from the article to be rotated.

  However, it is necessary to perform an insulation test with an insulation tester before the sale of such a fully-covered insulated ratchet spanner. The test method is to embed the fully-covered insulated ratchet spanner in many conductive beads 6. First, the insulating sleeve 7 is fitted into the fitting portion 3, and it is tested whether the conductive bead 6 conducts electricity with the ratchet fitting unit. However, such an all-insulated type ratchet spanner is formed with an annular flange 8 protruding at the periphery of the perforation 2 at the position of the pressing portion 4 to prevent contact with the ratchet fitting unit in the perforation 2 of the conductive bead 6. However, since the outer diameter of the annular flange 8 is smaller than the inner diameter of the pressing portion 4, the test bead 6 is located in the perforation 2 when the pressing portion 4 is ejected. May be too close to the surface and thus become conductive and fail to pass the test.

  In view of the above, an object of the present invention is to provide a kind of fully-covered insulating ratchet wrench having a good insulating effect.

The fully-covered insulated ratchet spanner provided by the present invention is
A spanner body, wherein the outer peripheral surface of the spanner body is covered with an insulating layer, the spanner body has a perforation penetrating the top surface and the bottom surface, and an outer ring convex portion that is annularly insulated around the perforation at the top surface position. The above-described spanner body,
A ratchet fitting unit comprising a fitting portion that is placed during drilling of the spanner body and extends out of the bottom surface of the spanner body and a pressing portion that extends out of the top surface of the spanner body. The outer diameter of the pressing portion is smaller than the inner diameter of the outer ring convex portion, and the ratchet fitting unit,
Is included.

  Thereby, this invention can pass an insulation test smoothly and can ensure the safety | security of an operator.

It is a test state display figure of a known full covering type insulation ratchet spanner. It is a three-dimensional combination diagram of a preferred embodiment of the present invention. FIG. 3 is a test state display diagram of the embodiment of FIG. 2.

  Please refer to FIG. 2 and FIG. A fully-covered insulated ratchet spanner 100 provided by a preferred embodiment of the present invention includes a spanner body 10 and a ratchet fitting unit 20.

  As shown in FIGS. 2 and 3, the spanner body 10 includes an action portion 11 and a handle portion 12 that is used for gripping an operator. In addition, an insulating layer 13 is disposed on the outer peripheral surfaces of the action portion 11 and the handle portion 12. The working part 11 is formed with a perforation 14 penetrating the upper surface and the bottom surface, and an insulated inner ring convex part 15 is formed at a position around the perforation 14 on the upper surface of the working part 11, and the An insulated outer ring convex part 16 is provided on the outer periphery at a predetermined distance from the inner ring convex part 15, that is, the outer diameter of the inner ring convex part 15 is smaller than the inner diameter of the outer ring convex part 16.

  As shown in FIGS. 2 and 3, the ratchet fitting unit 20 is installed in the perforation 14 of the spanner body 10, and the fitting portion 21 protrudes outside the perforation 14 at the bottom surface position, and the pressing portion thereof. 22 protrudes from outside the perforation 14 at the upper surface position, and is located above the inner ring convex portion 15 and the pressing portion 22 is in an insulating state, that is, since it is made of an insulating material, the pressing portion 22 is By pressing, the operation of the positioning bead 23 positioned in the fitting portion 21 can be controlled, and separation from an article (not shown) to be rotated can be achieved.

  The above is a description of the components of the fully-covered insulated ratchet spanner 100 of the preferred embodiment provided by the present invention and the assembly method thereof. Next, usage features of the present invention will be described.

  When testing the fully-covered insulated ratchet spanner 100 of the present invention, first, the insulating sleeve 99 is fitted to the fitting portion 21 of the ratchet fitting unit 20, and the present invention is further filled with the conductive beads 98. Put in. Since the inner diameter of the outer ring convex part 16 of the spanner body 10 of the present invention is slightly larger than the outer diameter of the pressing part 22 of the ratchet fitting unit 20, the outer ring when the pressing part 22 is flipped up. The protrusion 16 still blocks the conductive bead 98 to the outside, and the conductive bead 98 is isolated outside a relatively remote area of the ratchet mating unit 20. This prevents these conductive beads 98 from contacting the ratchet mating unit 20 in the perforation 14, i.e., no conduction occurs due to being too close, thus allowing the test certification to pass, and It is possible to reliably prevent an electric shock when the operator uses it later.

  The above is only a description of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by those skilled in the art based on the present invention are all covered by the present invention. Belonging to.

DESCRIPTION OF SYMBOLS 1 Spanner main body 2 Perforation 3 Engagement part 4 Pressing part 5 Positioning bead 6 Conductive bead 7 Insulating sleeve 8 Annular flange 100 Full-cover type insulation ratchet spanner 10 Spanner main body 11 Action part 14 Perforation 12 Handle part 13 Insulating layer 15 Inner ring convex part 16 Outer ring convex part 20 Ratchet fitting unit 21 Fitting part 22 Pressing part 23 Positioning bead 99 Insulating sleeve 98 Conductive bead

Claims (4)

In full-covered insulated ratchet spanners,
A spanner body, wherein the outer peripheral surface of the spanner body is covered with an insulating layer, the spanner body has a perforation penetrating the top surface and the bottom surface, and an outer ring convex portion that is annularly insulated around the perforation at the top surface position. The above-described spanner body,
A ratchet fitting unit comprising a fitting portion that is placed during drilling of the spanner body and extends out of the bottom surface of the spanner body and a pressing portion that extends out of the top surface of the spanner body. The outer diameter of the pressing portion is smaller than the inner diameter of the outer ring convex portion, and the ratchet fitting unit,
A fully-covered insulated ratchet wrench characterized by comprising   2. The fully-covered insulated ratchet spanner according to claim 1, wherein the spanner body includes a working portion and a handle portion used for gripping an operator, and an insulating layer is disposed on an outer peripheral surface of the working portion and the handle portion. And the perforation penetrates the upper surface and the bottom surface of the working portion.   The fully-covered insulated ratchet spanner according to claim 1, wherein an inner ring convex portion that is insulated is provided at a peripheral position of the perforation of the spanner main body, and an outer diameter of the inner ring convex portion is equal to that of the outer ring convex portion. A fully-covered insulated ratchet spanner characterized by a smaller inner diameter.   2. A fully-covered insulated ratchet spanner according to claim 1, wherein the pressing portion of the ratchet fitting unit is insulated.

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