Welded portion constitution and welding method
AssigneePress Kogyo Co., Ltd.
InventorsHisanao Maruyama, Rikuo Osaki, Youichi Koyama
Life of this patent
Estimating the term…
Abstract
The present invention is a welded portion constitution between a first member (38) and a second member (33), comprising an inclined portion (3) provided on an end portion of at least one of the first member (38) and second member (33), and a weld bead (5) provided so as to cover at least a part of the inclined portion (3). According to the present invention, the strength of the welded joint portion can be improved without increasing the sheet thickness of the first member (38) or second member (33), and without increasing the number of components.
Claims12
A welded portion constitution between a first member and a second member, comprising:
- an inclined portion provided on an end portion of at least one of said first member and second member;
- and
- a weld bead provided so as to cover at least a part of said inclined portion.
A method of welding a first member and a second member, comprising the steps of:
- forming an inclined portion by bending an end portion of at least one of said first member and second member;
- and
- welding said first member to said second member such that a weld bead is formed on at least a part of said inclined portion.
A constitution for a butt-welded portion between tubular members in which a tubular strip is inserted into the inside of the abutting portion, comprising:
- a contact portion formed on an end portion of at least one of said tubular members in contact with said strip;
- an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said strip;
- a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said strip;
- and
- a weld bead provided so as to cover said contact portion and at least a part of said inclined portion.
An axle case comprising a main body in which both end portions in the longitudinal direction are formed in a tubular form, a tubular spindle which is joined to the two ends in the longitudinal direction of the main body, and a tubular strip which is inserted into the inside of an abutting portion between the main body and spindle, said axle case comprising:
- a contact portion formed on an end portion of said main body and/or said spindle in contact with said strip;
- an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said strip;
- a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said strip;
- and
- a weld bead provided so as to cover said contact portion and at least a part of said inclined portion.
A butt welding method for welding tubular members to each other in which a tubular strip is inserted into the inside of the abutting portion, comprising the steps of:
- bending an end portion of at least one of said tubular members to form a contact portion which contacts said strip, an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said strip, and a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said strip;
- and
- butt welding said tubular members to each other such that a weld bead is formed over said contact portion and at least a part of said inclined portion.
A constitution for a fillet-welded portion between a sheet material and a base material, comprising:
- a contact portion formed on an end portion of said sheet material in contact with said base material;
- an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said base material;
- a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said base material;
- and
- a weld bead provided so as to cover said contact portion and at least a part of said inclined portion.
An axle case comprising an upper member and a lower member extending in the direction of vehicle width of a vehicle and joined by being abutted against each other, each having a bent portion which is bent into a substantially circular shape so as to protrude in an upward or downward direction from a central portion in the longitudinal direction, and a hemispherical cover member which is joined to said upper and lower members by fillet welding so as to cover a hole formed in the central portion of the joint portion between the upper and lower members in the longitudinal direction, said axle case comprising:
- a contact portion formed on a peripheral edge portion of said cover member in contact with said upper and lower members;
- an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said upper and lower members;
- a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said upper and lower members;
- and
- a weld bead provided so as to cover said contact portion and at least a part of said inclined portion.
A method of fillet welding a sheet material and a base material, comprising the steps of:
- bending an end portion of said sheet material to form a contact portion which contacts said base material, an inclined portion formed in series with said contact portion and inclined from said contact portion in a direction away from said base material, and a stepped portion formed in series with said inclined portion and disposed at a predetermined interval from said base material;
- and
- fillet welding said sheet material to said base material such that a weld bead is formed over said contact portion and at least a part of said inclined portion.
Dependencies are inferred from the claim text.