TWI826250B - Massage roller manufacturing method - Google Patents

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 pipe 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 pipe member in the mold, wherein a drop exists between two ends of the coating member and the pipe member. The skin attaching step is carried out after the second injection processing step, wherein the skin layer is attached to cover the surface of the coating member, such that the massage roller product is finished. Accordingly, the pipe member and coating member are formed through a two-shot injection molding process, facilitating the attachment of the skin layer to the coating member, and providing a product with aesthetic appearance which is less distorted.

Description

Manufacturing method of massage roller

The present invention relates to a roller, and in particular to a manufacturing method of a massage roller.

Through moderate massage, the muscles and fascia of the human body can be temporarily stimulated to achieve the purpose of soothing and relaxing and promoting blood circulation. What's more, in order to enhance the effect of massage, rollers are often used as tools to effectively remove lactic acid accumulation after exercise, or to relax and relieve body aches.

As shown in Figures 1 and 2, it is a conventional massage roller 1, which generally includes a hollow tube part 2 and a massage part 3 surrounding the outer periphery of the tube part 2. The tube part 2 can be matched with a rod (Fig. (not shown in the figure), the massage part 3 has a plurality of grooves and a plurality of bumps arranged alternately. The surface of the massage part 3 is pasted with an embossed leather layer 4 to increase the contact time between the massage roller 1 and the human body. Soft touch and friction coefficient.

However, the tube part 2 and the massage part 3 of the massage roller 1 are molded in one shot, and most of the materials used are hard materials, such as ABS resin. After the tube part 2 and the massage part 3 are injection molded in one step, the leather layer 4 is attached to the massage part 3. Since there is no gap at the junction of the two ends of the tube part 2 and the massage part 3, it is difficult for the staff to grasp the fitting area when attaching the leather layer 4, resulting in the sticking area being prone to distortion and unsightly appearance, which is difficult to achieve after long-term use. The lower leather layer 4 is also prone to falling off.

In order to solve the above problems, the present invention discloses a massage roller and a manufacturing method thereof. The manufacturing method adopts secondary injection molding, and then the skin layer is attached to the covering member, so that the skin layer on the massage roller is easier to stick to. Together, distortion is less likely to occur.

To achieve the above object, an embodiment of the present invention provides a massage roller, which includes a pipe and a covering. The pipe is formed through a first injection process, and the pipe has two ends arranged oppositely; the covering member is formed on the outer peripheral edge of the pipe through a second injection process, and the covering member has two end edges tapering toward the two ends. , there are two radially extending side surfaces between the two end edges and the two end parts, so that the two end edges and the two end parts form a gap, and the covering member has a plurality of convex ribs and a plurality of concave ribs distributed along the axial direction of the pipe. Grooves, convex ribs and concave grooves are arranged alternately.

In another embodiment of the present invention, a skin layer is further included. The skin layer is coated and attached to the surface of the covering member, and is not covered on both sides. The two ends are adjacent to the two sides and each has an unskinned layer. An exposed area of cladding.

In another embodiment of the invention, the length of the exposed area is greater than the height of each side.

In another embodiment of the invention, the height of each side is greater than the thickness of the skin layer.

In another embodiment of the present invention, the hardness of the pipe member is greater than the hardness of the covering member.

To achieve the above object, another embodiment of the present invention provides a manufacturing method of a massage roller, which includes the following steps: a first injection processing step and a second injection processing step. The first injection processing step involves injecting and forming a pipe fitting in a mold, and the pipe fitting has two opposite ends; The second injection processing step is to inject a covering member on the outer peripheral edge of the pipe in the mold. The covering member has two end edges tapering toward the two ends, and a radially extending gap between the two end edges and the two ends. On both sides, a gap is formed between the two end edges and the two ends. The covering member has a plurality of convex ribs and a plurality of concave grooves distributed along the axial direction of the pipe. The convex ribs and concave grooves are arranged alternately.

In another embodiment of the present invention, a skin coating step is further included. After the second injection processing step, a skin layer is coated and pasted on the surface of the covering part, with both ends adjacent to each side of the two sides. There is an exposed area that is not covered by the skin layer.

In this way, the present invention sequentially forms the pipe fitting and the covering member covering the pipe member through secondary injection processing, and there is a gap between the end edge of the covering member and the end of the pipe member, which is helpful for workers to clearly identify The part to be pasted allows the skin layer to be accurately pasted on the surface of the covering, making it less prone to distortion and making the surface of the massage roller aesthetically pleasing.

<conventional usage>

1: Massage roller

2: Management Department

3: Massage Department

4: Leather layer

<Invention>

S1: First injection processing step

S2: Second injection processing step

S3: Skin application steps

X:Axis

10:Pipe fittings

11: End

12:End

13: Shaft hole

14: Exposed area

20: Covering parts

21: Duan Yuan

22: Duan Yuan

23:Side

30: Epidermal layer

L: length

H: height

D:Thickness

100: Massage roller

[Figure 1] is a schematic diagram of the appearance of a conventional massage roller.

[Figure 2] is a schematic cross-sectional view of a conventional massage roller.

[Fig. 3] is a flow chart of the manufacturing method of the massage roller of the present invention.

[Fig. 4] is a schematic view of the appearance of the massage roller of the present invention.

[Fig. 5] is a schematic cross-sectional view of the massage roller of the present invention.

Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is not intended to limit the technical principles of the present invention to the specifically disclosed embodiments, but the scope of the present invention is limited only by the scope of the patent application and covers substitutions, modifications and equivalent. In addition, in order to facilitate understanding and reading by those familiar with the art, the structural dimensions and sizes of each component shown in each drawing are shown in a schematic manner and are not intended to limit the conditions under which the present invention can be implemented.

Figure 3 shows a flow chart of a manufacturing method of a massage roller disclosed in the present invention. FIG. 4 is a schematic diagram of the appearance of an embodiment disclosed in the present invention. FIG. 5 is a schematic cross-sectional view of an embodiment disclosed in the present invention. Please refer to Figure 3. The manufacturing method of the massage roller of this embodiment is used to produce the massage roller 100 shown in Figures 4 and 5. The manufacturing method of the massage roller 100 includes the following steps: a first injection processing step S1, which involves injecting and molding a pipe 10 in a mold. The pipe 10 has opposite ends 11 and 12. Among them, the pipe 10 has an axis hole 13 along the axis Effect.

A second injection processing step S2 is to inject a covering member 20 into the mold on the outer peripheral edge of the pipe fitting 10. The covering member 20 has two end edges 21, 22 gradually extending toward the two ends 11, 12 of the pipe member 10. shrink, forming a structure that is thick in the middle and thin at both ends. There are two radially extending side surfaces 23 between the two end edges 21 and 22 and the two end portions 11 and 12 , so that the two end edges 21 and 22 form a gap with the two end portions 11 and 12 . The covering member 20 has a plurality of convex ribs and a plurality of concave grooves distributed along the axial direction X of the pipe member 10 . The convex ribs and concave grooves are alternately arranged to provide a massage effect on the human body. The first injection processing step S1 and the second injection processing step S2 can be performed by a single injection machine or different injection machines, and the hardness of the pipe member 10 is greater than the hardness of the covering member 20 .

A skin application step S3 is to cover and apply a skin layer 30 on the surface of the covering member 20 after the second injection processing step S2, and does not cover the two side surfaces 23. The surface of the skin layer 30 can be provided with anti-slip embossing or texture. In the embodiment of the present invention, the two ends 11 and 12 each have an exposed area 14 that is not covered by the skin layer 30 adjacent to the two side surfaces 23 . The length L of the exposed area 14 is greater than the height H of each side surface 23 . Furthermore, the height H of each side surface 23 is greater than the thickness D of the skin layer 30 .

Through the aforementioned processing steps, the product of the massage roller 100 can be manufactured, and the present invention sequentially forms the pipe 10 and the coating 20 covering the pipe 10 through secondary injection processing, and the coating is There is a gap between 20 and the pipe fitting 10, which helps the staff to clearly identify the part to be pasted when pasting the skin layer 30, so that the skin layer 30 is accurately pasted on the surface of the covering member 20, and is not prone to distortion. , it is advantageous for the epidermis layer 30 to fit smoothly to the covering member 20, making the overall massage roller 100 more beautiful, and the epidermis layer 30 will not fall off easily even under long-term use.

Although the present invention has been described with a preferred embodiment, those skilled in the art can make various modifications without departing from the spirit and scope of the present invention. The aforementioned embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. All modifications or changes that do not violate the spirit of the present invention fall within the scope of the patent application of the present invention.

S1: First injection processing step

S2: Second injection processing step

S3: Skin application steps

Claims (5)

A method of manufacturing a massage roller, which includes the following steps: a first injection processing step, which is to inject and form a pipe in a mold, and the pipe has opposite ends; and a second injection processing step, which is A covering member is injected into the mold around the outer periphery of the pipe. The covering member has two end edges tapering toward the two end portions, and a radially extending portion between the two end edges and the two end portions. On both sides, the two end edges and the two ends form a gap. The covering member has a plurality of convex ribs and a plurality of concave grooves distributed along the axial direction of the pipe. The convex ribs and the concave grooves alternate. settings. The manufacturing method of the massage roller as described in claim 1 further includes a skin application step, which is to cover and paste a skin layer on the surface of the covering part after the second injection processing step, and the two The end portion has an exposed area adjacent to the two side surfaces that is not covered by the skin layer. The manufacturing method of a massage roller as claimed in claim 2, wherein the length of the exposed area is greater than the height of each side. The manufacturing method of a massage roller as described in claim 3, wherein the height of each side is greater than the thickness of the skin layer. The manufacturing method of a massage roller as described in claim 4, wherein the hardness of the pipe member is greater than the hardness of the covering member.

Images