JP2007038907A - Flaw preventive material for component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a component from being flawed in its prescribed place. <P>SOLUTION: A sheet of thermoplastic synthetic resin is formed in such a shape as tracing the prescribed place C on the component 6, and a flaw preventive material 1 fitted at the peripheral edge with mounting means 3 and 4 attachable removably to the component 6 is mounted on the prescribed place C on the component 6, whereby the place C is prevented from being flawed even if a tool, component, etc. has abutted thereto. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an anti-scratching material for parts that prevents a tool or part from hitting a predetermined place such as a bumper or a cabinet during assembling work such as an automobile or a home appliance.

  For example, when assembling various parts to the body of an automobile, there is a problem that a tool or part hits a corner or the like of a bumper and the corner or the like is damaged. Therefore, conventionally, when an operator assembles the vehicle body, it has been required to work with great care so that tools, parts, and the like do not hit corners such as bumpers.

  However, working with such extreme care is a burden on the worker, and also has a negative effect on work efficiency and thus production efficiency.

In the present invention, as means for solving the above-mentioned problems, a thermoplastic synthetic resin sheet is formed into a shape along the shape of a predetermined portion of the component 6, and the attachment means 3 detachable from the component 6 at the periphery. The damage prevention material 1 of the component 6 provided with 4 is provided.
The thermoplastic synthetic resin as the material of the thermoplastic synthetic resin sheet is desirably in the range of Rockwell hardness R30 to 150, and the thickness of the thermoplastic synthetic resin sheet is desirably 0.2 mm or more.

[Action]
After assembling the scratch-preventing material 1 at a predetermined location (corner portion C) of the component 6 via the mounting portions 3 and 4, the component is assembled. Even if a tool or component hits the predetermined location C, the scratch prevention material 1 is attached to the predetermined location C, so that the predetermined location C is not directly damaged by the tool or component.
The thermoplastic synthetic resin as the material of the thermoplastic synthetic resin sheet is in the range of Rockwell hardness R30 to 150, and when the thickness of the thermoplastic synthetic resin sheet is 0.2 mm or more, a tool or The impact hit by the parts is efficiently absorbed, and the damage is more reliably prevented.

〔effect〕
In the present invention, even when a tool or a part hits a predetermined part of a part already assembled into an article during the part assembling operation, the scratch preventing material 1 prevents the predetermined part from being damaged. It is no longer necessary to pay close attention to assembling parts, the burden on workers is reduced, and work efficiency and thus production efficiency are improved.

  1 to 3 show an embodiment of the present invention. A scratch prevention material 1 shown in FIG. 1 is provided on a main body 2 having a substantially U-shaped cross section, an insertion portion 3 as an attachment means provided on an upper edge portion of the main body 2, and a lower edge portion. It is formed in a shape along the corner shape of the front bumper 6 of the automobile 5.

  Although the said damage prevention material 1 is manufactured by vacuum-molding, pressure forming, or vacuum-pressure forming of a thermoplastic synthetic resin sheet, you may manufacture it by injection molding, press molding, etc.

  As the thermoplastic synthetic resin of the material of the thermoplastic synthetic resin sheet, those having a Rockwell hardness of R30 to 150 are desirable. Examples of the thermoplastic synthetic resin include polypropylene (homo R80 to 102, copoly R65 to 96), acrylonitrile-butadiene-styrene resin (ABS) (R85 to 106), high impact polystyrene (HIPS) (R50 to 82), Polyamide 6 (R119), Polyamide 66 (R120), Polyamide 46 (R122), Polyamide PA9T (R118), Styrene-modified polyphenylene ether (R115-116), Polyphenylene sulfide (R123-125), Polyarylate (R104-125), Acrylonitrile-ethylene propylene rubber-styrene resin (AES) (R102-109), acrylonitrile-acrylic rubber-styrene resin (AAS) (R96-108), acrylonitrile-chlorinated polyethylene- Styrene resin (ACS) (R100~107), polyacetals (R120) and the like.

  The thermoplastic synthetic resin sheet may be a laminated sheet in which two or more layers are laminated, or may be a thermoplastic synthetic resin foam sheet. Further, it may be a laminated sheet of a non-foamed thermoplastic synthetic resin sheet and a thermoplastic synthetic resin foam sheet.

  The thickness of the thermoplastic synthetic resin sheet is desirably set to 0.2 mm or more. When the thickness is 0.2 mm or more, the scratch-preventing material 1 reliably exhibits the scratch-preventing effect.

Examples of the synthetic resin include calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, calcium sulfite, calcium phosphate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, magnesium oxide, titanium oxide, iron oxide, zinc oxide, and alumina. , Silica, diatomaceous earth, dolomite, gypsum, talc, clay, asbestos, mica, glass fiber, carbon fiber, calcium silicate, bennite, white carbon, carbon black, iron powder, aluminum powder, stone powder, blast furnace slag, fly ash , Inorganic fillers such as cement, zirconia powder, natural fibers such as cotton, hemp, bamboo fiber, palm fiber, wool, silk, polyamide fiber, polyester fiber, acrylic fiber, viscose fiber, acetate fiber, vinyl chloride fiber, chloride Vinylidene fiber, vinyl Organic fibers such as silver fibers and acetate fibers, asbestos fibers, glass fibers, carbon fibers, ceramic fibers, metal fibers, whiskers and other inorganic fibers, linters, linen, sisal, wood flour, palm flour, walnut flour, starch, wheat flour A reinforcing material such as an organic filler may be added to improve shape retention, dimensional stability, compression and tensile strength, and the like. The filler is usually added in an amount of about 0.5 to 200% by weight based on the resin raw material of the masking material.
Furthermore, plasticizers such as pigments and dyes, DOP and DBP, antioxidants, antistatic agents, crystallization accelerators, flame retardants, flameproofing agents, insecticides, preservatives, waxes, lubricants, antiaging agents, ultraviolet rays You may add foaming agents, such as an absorber, a chemical foaming agent, or a capsule type foaming agent. These components may be added singly or in combination of two or more.

  As shown in FIGS. 2 and 3, the scratch preventing material 1 is attached to the corner C of the front bumper 6 of the automobile 5. At this time, the upper surface insertion portion 3 is inserted into the gap between the vehicle body 5 and the bumper 6. The lower surface engaging portion 4 is engaged with the inner edge of the lower surface of the bumper 6. Since the corner C of the bumper 6 is protected by the scratch preventing material 1 in this way, the tool or the component hits the corner C of the bumper 6 when performing an operation for assembling the component on the vehicle body 5. The corner C is reliably prevented from being damaged.

  4 to 6 show another embodiment of the present invention. In this embodiment, the scratch prevention material 11 is made of the same thermoplastic synthetic resin as in the previous embodiment, and the upper edge of the main body 2 having a substantially U-shaped cross section is bent upward so that a pair of suction cups on the left and right sides. 13A and 13A are attached to constitute the attachment means 13, and a pair of left and right suction cups 14A and 14A are also attached to the lower surface inside to constitute the attachment means 14. The scratch-preventing material 11 according to the present embodiment is formed into a shape along the shape of the central portion of the rear bumper 7 of the automobile 5.

  As shown in FIGS. 5 and 6, the anti-scratching material 11 of this embodiment causes the upper suction cup 13 </ b> A to be adsorbed to the vehicle body 5 above the rear bumper 7 and the lower suction cup 14 </ b> A to be adsorbed to the lower surface of the rear bumper 7. As a result, attachment damage to the central portion C of the rear bumper 7 is protected.

Other than the above embodiment, a magnet or the like may be applied as the attaching means.
Further, the present invention may be applied to predetermined locations such as corners of home appliances, office equipment, etc. other than automobile bumpers.

  The scratch-preventing material of the present invention can be used industrially usefully because it prevents the damage of parts with certainty, thereby saving labor of workers and improving work efficiency.

1 to 3 show an embodiment of the present invention.
Damage prevention material perspective view Bumper installation state explanatory diagram Bumper attachment state explanation sectional view FIGS. 4 to 6 show another embodiment of the present invention. Damage prevention material perspective view Rear bumper installation state explanation sectional view Rear bumper installation state diagram

Explanation of symbols

1,11 Scratch prevention material 2 Body 3 Insertion part (attachment means)
4 engaging part (attachment means)
5 Car body 6 Bumper (parts)
7 Rear bumper (parts)
13, 14 Mounting means 13A, 14A Suction cup (mounting means)
C Corner (predetermined location)

Claims (3)

  An anti-scratching material for a component, characterized in that a thermoplastic synthetic resin sheet is formed into a shape that conforms to the shape of a predetermined portion of the component, and an attachment means that can be attached to and detached from the peripheral portion is provided on the periphery.   The component according to claim 1, wherein the thermoplastic synthetic resin of the material of the thermoplastic synthetic resin sheet has a Rockwell hardness of R30 to 150.   The component for preventing damage to a component according to claim 1 or 2, wherein the thermoplastic synthetic resin sheet has a thickness of 0.2 mm or more.

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