Patent Application
20150069691
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REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC
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1. Field of the Invention
The present invention relates generally to a rotary cutting mat, and more particularly to an innovative one which is designed to avoid disengagement or peeling-off during rotary adjustment.
2. Description of Related An Including Information Disclosed Tinder 37 CFR 1.97 and 37 CFR 1.98.
When cutting objects on a table (e.g. cutting paper by an art cutter), a cutting mat is often cushioned to avoid damage of the table surface and facilitate the cutting action.
Traditionally, the cutting mat is often formed by a board of a certain thickness, and some marking lines showing the dimension and meshes are often drawn on the surface of the cutting mat as a benchmark for cutting objects. In response to diversified user demands, a cutting mat for flexible adjustment of angle has been developed. Referring to
Despite the available adjustment functions of said cutting mat 01, the upper board 02 is sleeved onto the flanged shaft 05 of the bottom board 03 only via the axle hole 04 without any limitation structure, so the superimposition state of the upper and lower boards 02, 03 is not very stable. When rotating the upper board 02 or removing or fetching the objects during the cutting process, the upper and lower boards 02, 03 are vulnerable to disengagement and peeling-off, leading to great inconvenience and much lower applicability.
Thus, to overcome the aforementioned problems of the prior art, it would be an advancement if the an to provide an improved, structure that can significantly improve the efficacy.
Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.
The present invention allows the coupling portion to penetrate the axle hole of the bottom board, and the end surface of the coupling portion is mated with the mating surface of the cutting mat, such that the expanded portion is located into the expanded opening of the bottom board, and also abutted onto the abutting wall. In this way, the bottom board is securely limited at one side of the cutting mat, such that the bottom board and cutting mat are abutted tightly. Hence, no disengagement or peeling-off may occur no matter how the user intends to adjust or overturn the cutting mat, thus improving greatly the stability of rotary adjustment, ease-of-operation and applicability.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
Said rotary cutting mat 06 comprises a cutting mat 10, fabricated into a faceted pattern to define a mating surface 11. A marker of predefined pattern is set on the surface of said cutting mat 10 as a reference for cutting.
A bottom board 20 is fabricated into a faceted pattern. An axle hole 21 is opened on the predefined position of the bottom board, and vertically connected to two side surfaces of the bottom board 20. Said axle hole 21 is opened on the center of the bottom board 20.
An expanded opening 30 is formed on one side surface of the bottom board 20 opposite to the mating, surface 11 of the cutting mat 10, and located coaxially with the axle hole 21, such that the expanded opening 30 and axle hole 21 are sectionally formed into a stepped pattern. Of which, the external diameter of the expanded opening 30 must be bigger than the axle hole 21.
An abutting wall 40 is formed on the wall surface between the expanded opening 30 and axle hole 21.
A rotary mating member 50 comprises of an expanded portion 51 and a coupling portion 52. Of which, the external diameter of the expanded portion 51 must be bigger than that of the coupling portion 52, such that the rotary mating member 50 is sectionally formed into a stepped pattern. Of which, the coupling portion 52 can penetrate the axle hole 21 of the bottom board 20, and the end surface of the coupling portion 52 is mated with the mating surface 11 of the cutting mat 10 (by means of adhesion, ultrasonic fusion, infrared, fusion or vibration frictional fusion), such that the expanded portion 51 is located into the expanded opening 30 of the bottom board 20, and also abutted onto the abutting wall 40. In this way, the bottom board 20 is securely limited at one side of the cutting mat 10, such that the bottom board 20 and cutting mat 10 are abutted tightly. Next, the cutting mat 10 and bottom board 20 could rotate correspondingly by taking the coupling portion 52 of the rotary mating member 50 as a rotary pivot. Besides, the thickness of the expanded portion 51 of the rotary mating member 50 must be smaller than the soft lower board 23 of the bottom board 20. When the end surface of the coupling portion 52 is mated with the mating surface 11 of the cutting mat 10, the expanded portion 51 can be embedded into the expanded opening 30, and a spacing is kept between the expanded portion Si of the rotary mating member 50 and the bottom of the bottom board 20.
Based upon the above-specified structural design, the present invention allows one to place a preset object onto the cutting mat 10 with the support of the bottom board 20. As the expanded portion 51 of the rotary mating member 50 can be abutted onto the abutting wall 40 formed between the expanded opening 30 and axle hole 21, the bottom board 20 is securely limited at one side of the cutting mat 10. Hence, no disengagement or peeling-off may occur no matter how the user intends to adjust the cutting mat 10. Referring also to
Referring to
Of which, the solid upper board 22 is made of PVC, PP or PS solid plastics. The soft lower board 23 is made of soft foamed material such as soft foam, such that the bottom board 20 could be placed with non-sliding effect via the help of the soft lower board 23.
