US 6,425,808 B1Granted

Honing tool

AssigneeToyo Corporation

InventorKatsutoshi Higashikawa

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Abstract

A honing tool has a large-diameter portion thereof provided with a plurality of stone holding recesses arranged radially from the inner bore to the outer edge for slidably holding grinding stones. Each stone holding recess is arranged to form an upper guiding facet and a lower guiding facet at the top side and the bottom side thereof, respectively as well as a couple of side guiding facets at both sides thereof. Also, each grinding stone has an upper sliding facet and a lower sliding facet provided at the top side and the bottom side thereof, respectively for sliding directly on the upper guiding facet and the lower guiding facet. Both sides of the grinding stone are side sliding facets for running directly on the side guiding facets. Moreover, the grinding stone has a tapered facet provided on an upper end thereof at the inner bore side for receiving a pressing force of a tapered rod. Accordingly, the grinding stone is stably held at four sides and can be slid without any jerky movement while being driven for rotating and reciprocating actions as pressing against the inner surface of a workpiece.

Claims4

Dependent claims

A honing tool comprising:

(a) a cylindrical body having a large-diameter portion provided at the distal end thereof;
(b) a tapered rod inserted into the inner bore of the cylinder body for sliding movements;
and
(c) a plurality of grinding stones mounted to the large-diameter portion and urged radially by a pressing force of the tapered rod, wherein
the large-diameter portion has a plurality of stone holding recesses provided radially therein from the inner bore to the outer edge for slidably holding the grinding stones, so that an upper guiding facet and a lower guiding facet are formed at the top side and the bottom side of each stone holding recess respectively while a couple of side guiding facets are formed at both sides of the stone holding recess, and
each of the grinding stones held in the corresponding stone holding recesses has an upper sliding facet and a lower sliding facet provided on the top side and the bottom side thereof, respectively for sliding directly on their respective upper and lower guiding facets while it has a couple of side sliding facets provided on both sides thereof for sliding directly on their respective side guiding facets and a tapered facet provided at an upper region thereof at the inner bore side for receiving the pressing force of the tapered rod.

3 more elements

Dependencies are inferred from the claim text.