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US 2003/0190963 A1Published application
Joint boot made of resin
AssigneeNone recorded
InventorsEiichi Imazu, Hiroshi Ohno, Katsushi Saito
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AssigneeNone recorded
InventorsEiichi Imazu, Hiroshi Ohno, Katsushi Saito
Estimating the term…
In a joint boot made of resin comprising a small-diameter cylinder part, a large-diameter cylinder part and a bellows part interlinking both and molded by injection blow molding, the small-diameter cylinder part constituting an injection molding section, the production of a burr at a boundary between the injection molding section and a blow molding section will be suppressed. To that end, the boundary at an outer periphery of the boot between the injection molding section and the blow molding section is set on a bellows part side away from a recess for fixation of the small-diameter cylinder part. In particular, a shoulder portion of the recess for fixation on the bellows part side is provided with a cutout portion, in which to set the boundary between the injection and the blow molding sections.
A joint boot made of resin comprising a first cylinder part, a second cylinder part, and a bellows part integrally linking both and molded by injection blow molding, with said first cylinder part made into an injection molding section,
A joint boot made of resin comprising a first cylinder part, a second cylinder part, and a bellows part integrally linking both,
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Backward citations are indexed for grants only.
Enclosed covers: allowing relative movement of joint parts due to the flexing of the cover
Combined blow-moulding and manufacture of the preform or the parison: extrusion blow-moulding
Preforms or parisons characterised by their configuration: having variable wall thickness
Preforms or parisons made of several components: having components being injected
Term end not estimated
1. Field of the Invention
This invention relates to a joint boot made of a resin, and more particularly to a bellows-like joint boot made of resin for use in a constant velocity joint for automotive vehicles or the like.
2. Description of Related Art
FIG. 1 is a half sectional, half side elevational view of a joint boot made of resin pertaining to one embodiment of this invention;
FIG. 2 is a half sectional view of the joint boot showing its installing state to a constant velocity joint;
FIG. 3 is an enlarged view of a circumscribing part A in FIG. 1;
A joint boot 10 made of resin relating to one embodiment of this invention will be hereinafter described with reference to the drawings.
The joint boot 10 made of resin in this embodiment is a boot made of a thermoplastic elastomer resin to be mounted on an automotive constant velocity joint, and comprises, as illustrated in FIGS. 1 and 2, a small-diameter cylinder part 12, a large-diameter cylinder part 14 coaxially disposed to be spaced apart from the small-diameter cylinder part 12, and a bellows part 16 integrally linking these small-diameter cylinder part 12 and large-diameter cylinder part 14.
The large-diameter cylinder part 14 assumes a short cylinder form so as to be externally fitted and secured to a top end of a cylindrical housing part 1 of a constant velocity joint on its outer periphery by means of a fastening clamp 2, and is provided on its outer periphery with a recess 18 for fixation for receiving the fastening clamp 2 which is ring-like, the recess for fixation extending circumferentially.