US 2026/0272765 A1 · MASSAGE ROLLER AND MANUFACTURING METHOD

Abstract

A manufacturing method of a massage roller includes a first injection processing step, a second injection processing step, and a skin attaching step. In the first injection processing step, a tube member is injected to be formed in a mold. In the second injection processing step, a coating member is injected on the outer periphery of the tube member in the mold, wherein a drop exists between two ends of the coating member and the tube member. The skin attaching step is carried out after the second injection processing step, wherein a skin layer is attached to cover the surface of the coating member, finishing the massage roller. Accordingly, the tube member and coating member are formed through a two-shot injection molding operation, facilitating the attachment of the skin layer to the coating member, and providing an aesthetic appearance which is less distorted.

Claims5

Dependent claims

A manufacturing method of a massage roller, comprising following steps:

a first injection processing step injection molding a tube member in a mold, the tube member comprising two end parts disposed in opposite to each other;
and
a second injection processing step injection molding a coating member on an outer periphery of the tube member in the mold, the coating member comprising two distal ends tapering toward the two end parts, a lateral side extending along a radial direction between each of the two distal ends and each of the two end parts, respectively, a drop being formed between the two distal ends and the two end parts, the coating member comprising a plurality of ribs and a plurality of grooves disposed in an alternate arrangement along an axial direction of the tube member.

Dependencies are inferred from the claim text.

Massage roller and manufacturing method

Life of this patent

Massage roller and manufacturing method

Life of this patent

Abstract

Claims5