CN101346211A - Sanding tool with molding interface pad - Google Patents

Sanding tool with molding interface pad Download PDF

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Publication number
CN101346211A
CN101346211A CNA2006800485063A CN200680048506A CN101346211A CN 101346211 A CN101346211 A CN 101346211A CN A2006800485063 A CNA2006800485063 A CN A2006800485063A CN 200680048506 A CN200680048506 A CN 200680048506A CN 101346211 A CN101346211 A CN 101346211A
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CN
China
Prior art keywords
interface pad
sanding tool
base component
tool according
abrasive
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006800485063A
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Chinese (zh)
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CN101346211B (en
Inventor
埃里克·R·齐布尔斯基
瑞安·帕特里克·希默斯
容·A·基施霍费尔
伊恩·R·欧文
乔纳森·M·利瑟
史蒂文·E·图尔赫
约翰·G·彼得森
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3M Innovative Properties Co
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3M Innovative Properties Co
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Publication of CN101346211A publication Critical patent/CN101346211A/en
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Publication of CN101346211B publication Critical patent/CN101346211B/en
Expired - Fee Related legal-status Critical Current
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
    • B24D15/023Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

A hand-held, manually-operated, sanding tool for use with a replaceable sheet-like abrasive material, such as sandpaper, includes a base member, a molded interface pad provided on the base member to define a working face against which the sheet-like abrasive material is arranged, and a retaining mechanism arranged to maintain the sheet-like abrasive material in operative relation with the interface pad. The base member is formed of a first material and the molded interface pad is formed of a second injection moldable material.

Description

Sanding tool with molding interface pad
Background technology
The present invention relates generally to the hand-held of a kind of use sheet-like abrasive (for example sandpaper), manually operated sanding tool.
Manually operated hand-held sanding tool (for example abrading block) uses with abrasive sheet (for example traditional sandpaper) usually, with hand sand or polishing surface.A kind of commercially available abrading block is for can derive from 3M Company (St.Paul, 3M MN) TMRubber sanding block.Hand sand instrument can comprise with adhesive method and is bonded to foam interface pad on the working surface of described sanding tool.Yet this type of interface pad has one or more defectives or shortcoming.Expect that providing a kind of hand-held, manually operated sanding tool, it interface pad that comprises to overcome has the defective and the shortcoming of the sanding tool of the foam interface pad that bonds with adhesive method.
Summary of the invention
The invention provides a kind of hand-held, manually operated sanding tool that uses with replaceable sheet-like abrasive, but it comprises the base component that formed by first material, is arranged in the molding interface pad that is formed by second injection molded material on the described base component, thereby define described sheet-like abrasive and be arranged into working face on it, and arrange maintaining body in order to the operative relationship of keeping described sheet-like abrasive and described interface pad.
In one aspect, the Shore hardness of described first material greater than the Shore hardness (being that described interface pad is softer than described base component) of described second material one more specifically aspect, the Shore D of described first material is greater than about 30, and the Durometer A hardness of described second material is less than about 95.
In one embodiment, described interface pad is a polymeric material.At one more specifically among the embodiment, described interface pad is an elastomeric material.On the other hand, described interface pad comprises the veined working surface relative with described base component.Aspect more specifically, described interface pad working face comprises macroscopical three-dimensional surface topography.Described surface topography can be wrapped and be expanded the non-random pattern that is limited by elevated regions and sunk area that three-dimensional surface topography at random or its can comprise rule.
On the other hand, described base component comprises slit, and described interface pad comprises the extension that extends in the slit, thereby forms firm connection between described base component and described interface pad.
On the other hand, the invention provides the hand-held that a kind of manufacturing is used with replaceable sheet-like abrasive, the method of manually operated sanding tool, described sanding tool comprises the base component that is formed by first material, but be arranged in and form molding interface pad by second injection molded material on the described base component, define described sheet-like abrasive thus and be arranged into working face on it, and arrange maintaining body in order to the operative relationship of keeping described sheet-like abrasive and described interface pad, wherein said method may further comprise the steps: the sanding tool that comprises the base component with working face is provided, forms interface pad by injection molding elastomeric material on described working face on described base component then.
The advantage of some embodiment of the present invention comprise improvement frosted performance, improvement product design flexibility (promptly, the design of described product can be easier to customization or be applicable to concrete application), manufacturing is simpler and cost is lower, and uses easier and more comfortable sanding tool.
Description of drawings
Will be in conjunction with the accompanying drawings, the present invention further is described, wherein:
Fig. 1 has the hand-held of molding interface pad, a perspective view of manually operated sanding tool according to of the present invention.
Fig. 2 is the side view of sanding tool shown in Figure 1;
Fig. 3 is the detailed view of described base component and described interface pad; And
Fig. 4 a and 4b are the planes that the standby three-dimensional surface topography of described interface pad is shown.
The specific embodiment
Referring now to accompanying drawing,, wherein similar Reference numeral is illustrated in similar or corresponding part in these several views, and Fig. 1 and 2 illustrates hand-held, manually operated sanding tool or the abrading block 2 that uses with the replaceable sheet-like abrasive 40 of flexibility.Term " manual operation " refers to that instrument 2 is not the fact of electric tool.That is to say that the institute of this instrument is dynamic to be provided and this instrument itself does not comprise motor by the user.Abrasive sheet that approach, flexible, that be generally square or rectangle that term " sheet-like abrasive " refers to, this thin slice has the discrete end that can be connected to abrading block.This sheet-like abrasive comprises that for example, traditional sandpaper, soft frosted ramie cotton fabric, non-woven abrasive (for example can derive from 3M Company, St.Paul, Scotch-brite MN) TMAnd thin, flexible abrasive sheet material, for example in U.S. Patent No. 6,613, those that describe among 113 (Minick etc.) are incorporated its full content into this paper with way of reference.Described instrument also can with non-grinding flaky material, dedusting sticky cloth material for example uses together.Yet this term does not comprise the abrasive material endless belt of usually using on electronic sanding tool, or die-cut (can do so usually for electronic sanding tool) of selling before cutting for the size of mating concrete sanding tool and shape.
The sequence number that the sanding tool 2 that illustrates herein and describe was submitted on April 29th, 2005 is to have more fully in 11/117,932 the United States Patent (USP) to describe, and incorporates its full content into this paper with way of reference.Yet for the present invention, sanding tool 2 is not particular importance usually, needs only it and can comprise interface pad and comprise some essential characteristic, for example admits and keep the ability of sheet-like abrasive.Therefore, should be appreciated that the sanding tool 2 that hereinafter illustrates and describe is intended to represent to have any sanding tool of molding interface pad.
Sanding tool 2 comprises base component 4 and is connected a pair of clamp mechanism 6,8 of the opposite end of described base component 4.Though the sanding tool 2 that illustrates all has clamp mechanism 6,8 at two ends, will be appreciated that in the clamp mechanism 6,8 one or two can replace grinding the conventional mechanism that flaky material 40 is fixed to described instrument by being used for.Be rectangle though also will be appreciated that the base component 4 that illustrates, it also can be square or other helps using the shape of conventional abrasive sheet.
The lower surface 14 that base component 4 has the one 10 and the 2 12 opposite end and is roughly the plane.Each end 10,12 of base component 4 has inclination or the angled contact surface 16,18 with respect to lower surface 14 respectively.Like this, contact surface 16,18 forms acute angle with respect to related approach end 10,12 respectively with lower surface 14.
Each clamp mechanism 6,8 connects the opposite end 10,12 of base component 4 pivotly at contiguous described contact surface 16,18 places respectively, thereby defines the terminal 40a that can insert sheet-like abrasive 40, the anchor clamps of 40b.Each clamp mechanism 6,8 can move in the closed position shown in Fig. 1 with between the open position shown in Fig. 2.In described closed position, clamp mechanism 6,8 is fully driven respectively to related contact surface 16,18, and, when abrasive material does not exist, be arranged in the position of contiguous contact surface 16,18 respectively.At described open position, clamp mechanism 6,8 separates with related contact surface 16,18, thereby limits gap 20,21 respectively between the contact surface 16,18 of base component 4 and clamp mechanism 6,8.
Each clamp mechanism 6,8 comprises the flexible take up member 22,24 of arranging towards related contact surface 16,18.Arrange by this way, when clamp mechanism 6,8 when base component 4 reduces with fixed-abrasive 40 to described instrument 2, the terminal edge of take up member 22,24 is slidably engaged contact surface 16,18.Therefore, in the gap 20,21 between terminal 40a, the 40b of abrasive sheet 40 insertion base component 4 and the clamp mechanism 6,8, and when described clamp mechanism moves to the closed position from its open position, the edge of take up member 22,24 will be frictionally engaged terminal 40a, the 40b of abrasive sheet 40.
When clamp mechanism 6,8 is further driven to contact surface 16,18, take up member 22,24 clamps the corresponding end of abrasive sheet 40a, 40b and it 16,18 is upwards moved from associated end 10,12 along the inclination contact surface, thereby the thin slice of abrasive material is further drawn in the gap 20,21.In addition, when clamp mechanism 6,8 is driven to contact surface 16,18, take up member 22,24 bending or deflections, so that the curved surface of take up member 22,24 will engage described contact surface 16,18, thus the total contact area between increase take up member 22,24 and the abrasive sheet 40.Like this, the lax of abrasive sheet 40 is tightened up, thus the applying of fastening described abrasive sheet 40 and the bottom 14 of base component 4.
In the illustrated embodiment, take up member 22,24 is thin flexible metal band, sheet spring for example, and after active force discharged, described metal tape can be got back to its original position usually.Also can use other material (for example stiff resilient rubber) or synthetic plastic.(abrasive sheet 40 is being installed in the process of described instrument in order to make evenly to distribute at abrasive sheet terminal 40a, 40b by take up member 22,24 power of being executed, and when abrasive sheet is clamped on the instrument), take up member 22,24 is extended on the whole width of clamp mechanism 6,8 continuously.The described power that distributes in this way, take up member 22,24 has reduced the possibility of tearing or otherwise damaging abrasive sheet material 40.
For the end that further reduces take up member 22,24 inserts the possibility of (thereby may damage described abrasive sheet) in the abrasive sheet 40, in an alternative embodiment, take up member 22,24 can curve inwardly or be tortuous, so that take up member 22,24 has towards the curved surface of contact surface 16,18, and when closing clamp mechanism 22,24, described curved surface engages described contact surface.
A characteristic aspect according to sanding tool 2 is furnished with molding interface pad 26 on the lower surface of base component 4.Described interface pad 26 defines the surface that sheet-like abrasive 40 is fixed thereon.By molding interface pad 26 is provided, base component 4 and interface pad 26 have formed Unitarily molded main body, and this main body comprises top that is limited by base component 4 and the bottom that is limited by interface pad 26.Described base component 4 is formed by first polymeric material usually, and described interface pad 26 is formed by second polymeric material usually.Second polymeric material that is used to form interface pad 26 is usually than the material softer that is used to form base component 4.But molding interface pad 26 can be formed by any moulding material, but but is normally formed by soft, flexible and flexible, elastomer injection molded material.But the injection molded material that is fit to comprises natural and synthetic rubber, comprises latex, butyl rubber, thermoplastic elastomer (TPE) (for example polyurethane elastomer), TPV and thermoplastic elastomer.Be used for interface pad 26 suitable material Durometer A hardness typical case earthing less than about 95, more typically less than about 70.A kind of material that is suitable for molding interface pad 26 can trade name Santoprene derives from the AdvancedElastomer Systems of subsidiary of ExxonMobil Chemical.
Usually, form Shore hardness that the material of base component 4 has greater than Shore hardness in order to the material that forms interface pad.The material that is suitable for base component comprises the hard synthetic plastic, normally thermosetting or thermoplastic (for example ABS (acronitrile-butadiene-styrene), polypropylene, polyethylene) and comprise the blend of this type of material.Be suitable for Shore D that the material of base component 4 has usually greater than about 30.Be suitable for the material of base component 4 can trade name Cycolac and Cycoloy (ABS polycarbonate Alloys) derive from GE Plastics.
Fig. 3 is the detailed view that interconnection between base component 4 and the interface pad 26 is shown.In the illustrated embodiment, base component 4 comprises groove or slit 28, and interface pad 26 comprises the extension 30 that extends in the slit 28 simultaneously.Like this, resist the mechanical connection that separates between base component 4 and interface pad 26, to form.In order further to strengthen the interconnection between interface pad 26 and the base component 4, thereby and prevent that interface pad 26 from separating from base component 4, slit 28 comprises optional enlarging 28a, and extension 30 comprises the terminal part 30a that widens, and this terminal part extends in the enlarging 28a of slit 28.Can conceive other architectural feature that is used to form mechanical attachment between base component 4 and the interface pad 26 in conjunction with the present invention.For example, described mechanical connection can form by single projection, and described projection can have multiple shape, can cooperate with corresponding recesses.Described projection and groove can form in base component 4 or interface pad 26.
Alternatively, base component 4 and interface pad 26 can be formed by chemical bonding.When connecting by the chemical bonding mode, interface between base component 4 and the interface pad 26 can be roughly plane (being that base component 4 and interface pad 26 respectively comprise the surface connected to one another that is roughly the plane) or described interface can comprise for example above-mentioned those architectural feature, with the interconnection between further enhancing base component and the interface pad 26.Described chemical bonding forms by the compatible material of selecting to form strong chemical bond.
As shown in Figure 4, interface pad 26 exposes working face (i.e. the surface of the interface pad 26 relative with base component 4, abrasive sheet 40 is arranged on this surface) and can comprise the grain surface 32 with three-dimensional surface topography.Described three-dimensional surface topography is generally macroscopic view, and meaning is that difference in height between elevated regions and the sunk area is greater than about 1 millimeter.Shown in Fig. 4 a, described grain surface 32 can be the random pattern of the elevated regions 34 separated by sunk area 36, or shown in Fig. 4 b, described grain surface can be the repeat patterns of the rule of elevated regions 34 and sunk area 36.Can conceive other morphology in conjunction with the present invention.For example, the size of described projection and sunk area and shape can change or customize according to the type of the abrasive sheet that uses and/or according to the concrete application of this instrument.
The combination of base component 4 and interface pad 26 can (for example) comprises that by use co-injection molding, known many materials casting process Overmolded and that penetrate moulding form more.For example, base component 4 can form in mould by the material (for example ABS) that injection molding is fit to, and to form base component 4, interface pad 26 can form by the material (for example Santoprene) that injection molding is fit to simultaneously, to form interface pad 26.Alternatively, base component 4 can form by cast or other known technology.
Compare with using traditional interface pad, injection molding interface pad 26 can provide a plurality of advantages, and described legacy interface pad is for being bonded to the foam pad on the sanding tool 2 with bonding mode.At first, because described molding interface pad adopts injection molded, therefore saved the die cut foam thin slice to appropriate size and with the bonding mode additional step of this foam pad that bond to the bottom of base component 4.This has simplified assembly technology and has also saved the expense of raw materials relevant with foam pad and adhesive.Injection molding interface pad 26 has also reduced the possibility (be that injection molding provides chemistry and/or the mechanical adhesion between interface pad 26 and the base component 4, this bonding unlikely allows described interface pad 26 separate from described base component 4 because of carelessness) that occurs failure between described interface pad and the base component 4.The interface pad 26 of injection molding also can comprise multiple texture and/or pattern, it can form (durability and the suitable shape ability that depend on needs) by the moldable polymer materials that is fit to of any amount, and its can multiple color or thickness form, thereby increase the design alternative and the design flexibility of this instrument greatly, and make the design of this instrument be easy to customize according to concrete the application.
Described sanding tool 2 also comprises shank 46.In the illustrated embodiment, described shank 46 comprises from the center of base component 4 upwardly extending neck bar part 46a, and comprise the head 46b of the expansion that is positioned at neck bar 46a end, described head defines handle 48, and this knob is easy to by user's grasping moving with manipulation and control tool 2.More comfortable when allowing user's grasping, handle 48 parts of shank 46 preferably include the outer peripheral areas 48b that the interior zone 48a that formed by the first hard relatively material and second material by the relative soft class rubber that is easy to grasping form, thereby the operation of improvement is provided to the user.The first hard relatively material can be (for example) hard synthetic plastic, and the second soft relatively material can be (for example) thermoplastic elastomer (TPE), rubber, class elastomeric material or foam.
Described instrument 2 comprises base component 4, and clamp mechanism 6,8 and shank 46 can be by comprising that for example any suitable material of timber, metal, synthetic plastic or vulcanie forms.
Those of skill in the art will understand, and can carry out variations and modifications and not break away from purport of the present invention above-mentioned the present invention.It for example, will be appreciated that the size of described instrument can change, so that can use with various standard-sized commercially available abrasive sheets.Therefore, scope of the present invention should not be limited to the structure described in the present patent application, and only should be subjected to the structure of the text description in this paper claims and the restriction of its equivalent structure.

Claims (13)

1. one kind is used for the hand-held that uses with replaceable sheet-like abrasive, manually operated sanding tool, comprising:
(a) base component;
(b) molding interface pad, it is arranged on the described base component to limit described sheet-like abrasive and is arranged into working face on it; And
(c) maintaining body is arranged to keep the operative relationship of described sheet grinding-material and described interface pad;
Wherein said base component is formed by first material, but and described molding interface pad is formed by second injection molded material.
2. sanding tool according to claim 1, the Shore hardness of wherein said first material is greater than the Shore hardness of described second material.
3. sanding tool according to claim 2, the Durometer A hardness of wherein said second material is less than about 95.
4. sanding tool according to claim 3, the Shore D of wherein said first material is greater than about 30.
5. sanding tool according to claim 1, wherein said interface pad are polymeric material.
6. sanding tool according to claim 5, wherein said interface pad are elastomeric material.
7. sanding tool according to claim 6, wherein said interface pad is by at least a the making in thermoplastic elastomer (TPE), TPV and the thermoplastic elastomer.
8. sanding tool according to claim 1, but wherein said base component form by the synthetic plastic material of injection molding, but and described interface pad form by the injection molded material softer than the material that is used to form described base component.
9. sanding tool according to claim 1, wherein said interface pad comprises grain surface.
10. sanding tool according to claim 1, wherein said interface pad working face comprises macroscopical three-dimensional surface topography.
11. sanding tool according to claim 6, wherein said surface topography comprise the non-random pattern that is limited by elevated regions and sunk area of rule.
12. sanding tool according to claim 1, wherein said base component comprises slit, and described interface pad comprises the extension that extends in the slit, thereby forms firm connection between described base component and described interface pad.
13. a method of making sanding tool according to claim 1 may further comprise the steps:
(a) provide the sanding tool that comprises base component with working face; And
(b) by on described base component, forming interface pad at injection molding elastomeric material on the described working face.
CN2006800485063A 2005-12-21 2006-12-13 Sanding tool with molding interface pad and its manufacture method Expired - Fee Related CN101346211B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/314,799 2005-12-21
US11/314,799 US20070141969A1 (en) 2005-12-21 2005-12-21 Sanding tool with molding interface pad
PCT/US2006/047427 WO2007078743A2 (en) 2005-12-21 2006-12-13 Sanding tool with molded interface pad

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CN101346211A true CN101346211A (en) 2009-01-14
CN101346211B CN101346211B (en) 2012-05-30

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US (1) US20070141969A1 (en)
EP (1) EP1968767B1 (en)
CN (1) CN101346211B (en)
AT (1) ATE524274T1 (en)
BR (1) BRPI0621090A2 (en)
CA (1) CA2633843C (en)
WO (1) WO2007078743A2 (en)

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US20070141969A1 (en) 2007-06-21
CA2633843C (en) 2014-10-28
EP1968767A2 (en) 2008-09-17
ATE524274T1 (en) 2011-09-15
EP1968767A4 (en) 2010-08-04
CN101346211B (en) 2012-05-30
WO2007078743A2 (en) 2007-07-12
WO2007078743A3 (en) 2007-08-23
EP1968767B1 (en) 2011-09-14
CA2633843A1 (en) 2007-07-12
BRPI0621090A2 (en) 2011-11-29

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Termination date: 20171213