| Dust vacuuming abrasive tool -> Monitor Keywords |
|
|
  Dust vacuuming abrasive toolUSPTO Application #: 20080081546Title: Dust vacuuming abrasive tool Abstract: The present disclosure is directed to a dust vacuuming abrasive tool comprising an abrasive sheet material having an abrasive surface, a back surface and 20 or more perforations; and a backup pad having a support surface, a back surface and 20 or more perforations, or a plurality of perforations and also having, in the supporting surface. The configuration of the abrasive sheet and back-up pad eliminate the need to align perforations in the abrasive sheet and back-up pad. (end of abstract) Agent: 3m Innovative Properties Company - St. Paul, MN, US Inventors: SATORU TAKINAMI, HITOSHI OKA USPTO Applicaton #: 20080081546 - Class: 451527000 (USPTO) Related Patent Categories: Abrading, Flexible-member Tool, Per Se, Interrupted Or Composite Work Face (e.g., Cracked, Nonplanar, Etc.) The Patent Description & Claims data below is from USPTO Patent Application 20080081546. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE RELATED APPLICATIONS [0001] This application claims priority from Japanese Patent Application No. 2006-268351, filed on Sep. 29, 2006. TECHNICAL FIELD [0002] The present invention relates to a dust vacuuming abrasive tool having an abrasive sheet material with perforations, and a supporting pad with perforations and a ventilative member, for vacuuming dust during abrading work. BACKGROUND ART [0003] Painting coat, clear coat, putty filler, primer and the like are abraded in automobile repairing work and the like. When painting coat, clear coat, putty filler, primer or the like is abraded, a large amount of abraded dust, or swarf, is created. This swarf has to be removed otherwise the surface of the abrasive material would become clogged, resulting in reduced abrading efficiency. Therefore, conventional dust vacuuming abrasive tools having perforations in an abrasive surface are well known. [0004] Such abrasive tools are generally formed of an abrasive sheet material (abrasive cloth or the like) and a pad for supporting the abrasive material, sometimes called a back-up pad. In an exemplary pad, about 6 or 7 perforations for vacuuming dust having a diameter of approximately 10 mm are formed at predetermined positions in the abrasive material and in the pad. Thus, the abrasive sheet material is mounted on the surface for attaching an abrasive material of the pad, so that the perforations overlap, and perforations which penetrate through to the rear side are formed in the abrasive surface of the abrasive tool. [0005] Abrading work is carried out by attaching a sander having a vacuuming function to the rear surface of the abrasive tool, and abraded swarf is vacuumed through the perforations in the abrasive surface and discharged. [0006] When an abrasive material is mounted on the pad, the work of attaching the abrasive material while visually confirming the alignment of the perforations in the pad and in the abrasive material is troublesome. In the case where the perforations in the abrasive material do not align with the perforations in the pad, the number of perforations in the abrasive surface is effectively reduced, and therefore, sufficient dust vacuuming performance cannot be obtained. Therefore, when the type of abrasive material is changed, and the alignment of the perforations, or the format of the perforations changes, it also may be necessary to change the back-up pad accordingly, which is time-consuming and inefficient. BRIEF DESCRIPTION OF THE DRAWINGS [0007] FIG. 1 shows a cross sectional diagram showing the structure (portion) of an abrasive sheet material having perforations. [0008] FIG. 2 shows a diagram showing the abrasive surface of an abrasive sheet material used in the present invention. [0009] FIG. 3 shows a cross sectional diagram showing one example of a backup pad suitable for use in the present invention. [0010] FIG. 4 shows a diagram showing the support surface of a backup pad suitable for use in the present invention. [0011] FIG. 5 shows a diagram showing the support surface of a backup pad suitable for use in the present invention. [0012] FIG. 6 shows a cross sectional diagram showing one example of an intermediate pad suitable for use in the present invention. [0013] FIG. 7 shows a diagram showing another example of the support surface or back surface of an intermediate pad suitable for use in the present invention. [0014] FIG. 8 shows a diagram showing another example of the support surface or back surface of an intermediate pad suitable for use in the present invention. [0015] FIG. 9 shows a diagram showing another example of the support surface or back surface of an intermediate pad suitable for use in the present invention. [0016] FIG. 10 shows a diagram showing how the condition of overlap of perforations changes with the angle at which the perforated structures are shifted. DISCLOSURE OF THE INVENTION [0017] The present disclosure is provided in order to solve the above-described problems with the prior art, and is to make it unnecessary to align the perforations of an abrasive sheet material with those of the support pad, and to reduce the labor for replacing abrasive materials. [0018] The present disclosure provides a dust vacuuming abrasive tool comprising: [0019] a) an abrasive sheet material having an abrasive surface, a back surface and 20 or more perforations; and [0020] b) a backup pad having a support surface, a back surface and [0021] i) 20 or more perforations, or [0022] ii) a plurality of perforations and also having, in the supporting surface, channels which interconnect the perforations and extend along lines connecting the 20 or more perforations of the abrasive sheet material; [0023] the back surface of the abrasive sheet material being fixed detachably on the support surface of the backup pad [0024] wherein the 20 or more perforations of the abrasive sheet material are approximately adjacent the backup pad perforations and are arranged in a lattice of equally spaced equilateral triangles, [0025] wherein the diameter of the abrasive sheet material perforations are 2 to 8 mm, [0026] wherein the distance between two adjacent perforations is not greater than 1.5 times the diameter of the perforations, and [0027] wherein the diameter of the backup pad perforations is 80 to 120% of the diameter of the abrasive sheet material perforations. [0028] Furthermore, the present disclosure provides a dust vacuuming abrasive tool comprising: [0029] a) an abrasive sheet material having an abrasive surface, a back surface and 20 or more perforations; [0030] b) an intermediate pad having a supporting surface, a back surface and [0031] i) 20 or more perforations, or [0032] ii) a plurality of perforations and also having, in the supporting surface and/or the back surface, channels which interconnect the perforations and extend along lines connecting the 20 or more perforations of the abrasive sheet material, and [0033] c) a backup pad having a supporting surface, a back surface and a plurality of perforations; [0034] the back surface of the abrasive sheet material being fixed detachably on the supporting surface of the intermediate pad and the back surface of the intermediate pad being fixed detachably on the supporting surface of the backup pad; [0035] wherein the 20 or more perforations of the abrasive sheet material are approximately adjacent the intermediate pad perforations and are arranged in a lattice of equally spaced equilateral triangles; [0036] wherein the diameters of the perforations of the abrasive sheet material is 2 to 8 mm, wherein the distance between two adjacent perforations is not greater than 1.5 times the diameters of the perforations, and [0037] wherein the diameter of the perforations of the intermediate pad is 80 to 120% of the diameter of the perforations of the abrasive sheet material Continue reading... Full patent description for Dust vacuuming abrasive tool Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Dust vacuuming abrasive tool patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Dust vacuuming abrasive tool or other areas of interest. ### Previous Patent Application: Guard for a moving tool Next Patent Application: Method for manufacturing formed lumps of meat Industry Class: Abrading ### FreshPatents.com Support Thank you for viewing the Dust vacuuming abrasive tool patent info. IP-related news and info Results in 0.67373 seconds Other interesting Feshpatents.com categories: Canon USA , Celera Genomics , Cephalon, Inc. , Cingular Wireless , Clorox , Colgate-Palmolive , Corning , Cymer , |
||
