CN1155462A - Protective cover of angle steel grinder - Google Patents
Protective cover of angle steel grinder Download PDFInfo
- Publication number
- CN1155462A CN1155462A CN96112620.5A CN96112620A CN1155462A CN 1155462 A CN1155462 A CN 1155462A CN 96112620 A CN96112620 A CN 96112620A CN 1155462 A CN1155462 A CN 1155462A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- angle steel
- metallic plate
- sleeve pipe
- spreading sleeve
- Prior art date
- 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
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 230000008602 contraction Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000003892 spreading Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 229910001651 emery Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Glass Compositions (AREA)
- Surgical Instruments (AREA)
- Outer Garments And Coats (AREA)
Abstract
Disclosed is a protective cover (19) for an angle steel grinding machine. The protective cover is provided with a lengthening casing (20) which is detachably and adjustably arranged on a contraction neck (18) of a manually controlled angle steel grinding machine; wherein, a lug (21) with inward radial direction of the lengthening casing (20) is inserted into an annular groove (22) of the contraction neck (18); the free end of the side face of the grinding machine is provided with a rack (28) provided with a series of gears (29) and gear gaps (27); a bolt-type protruded piece (26) is arranged inside the area of the contraction neck (18) to ensure that the protective cover (19) for the angle steel grinding machine is inserted; the lengthening casing (20) is also provided with a protective metal plate (31) radially extended outward at the external side of the lengthening casing; with simple producing and light weight, the protective cover (19) for the angle steel grinding machine is solely molded and especially made of punched metal plate.
Description
The present invention relates to a kind of protective cover of angle steel grinder according to claim 1 preorder.
In DE-OS 4113641, can recognize a kind of protective cover of angle steel grinder, its advantage be angle steel grinder be fix with adjustable, but its manufacturing cost is relatively expensive.
Therefore the protective cover of angle steel grinder of the present invention that has claim 1 distinguishing characteristics has the advantage of single-piece, and simple, low cost is installed, manufacturing is simple and can deposits that stack is stacked and weight is little.
This protective cover of angle steel grinder can be by a block of metal sheet metal forming in an operation, and therefore an independent blank also must be placed and be transported to the manufacturing position as raw material.
In addition, other advantages of the present invention are provided by dependent claims.
Further specify one embodiment of the present of invention below in conjunction with accompanying drawing.
Fig. 1 is the longitudinal profile partial view that is fixed on the protective cover on the angle steel grinder tool side;
Fig. 2 is the vertical view of the protective cover of angle steel grinder of Fig. 1.
Fig. 1 has represented a manual feeding angle steel grinder tool 10 that electric machine casing 11 is arranged with profile, housing 11 flanges connect a drive shell 12, a moving axis 13 stretches out downwards from drive shell 12, have a workpiece-emery wheel 14 with the simple expression of chain-dotted line at its free end, it can drive around the axis 15 of driving shaft 13 with being rotated.This driving shaft 13 is supported by roller bearing 17 rotationally; this bearing 17 is installed on the bearing flange 16; this bearing flange 16 has one to admit the downward tubular of protective cover of angle steel grinder 19 to shrink neck 18; protective cover 19 has the spreading sleeve pipe 20 of a collar shape; it is spun on shrinks on the neck 18; this spreading sleeve pipe 20 has radially inner projection 21; this projection is inserted in the cannelure 22 that shrinks on the neck 18, and thus that these protective cover of angle steel grinder 19 relative angle steel grinding machineries 10 are fixing in the axial direction.This reception sleeve pipe 20 has a central opening that driving shaft 13 is freely inserted.
On the radially outer zone; this spreading sleeve pipe 20 is connected on the semicircle protection metallic plate 31; this protection metallic plate 31 radially bends connection one cylindrical outer casing face 32 in the zone one on its radially outer zone; it catches the iron filings that radially outward fly out from emery wheel 14, and as the people who radially protects metallic plate protection work and stop.The outer radial of this cylindrical outer casing face 32 curves inwardly, and constitutes an edge 32a who plays the crooked shape of radially protecting the metallic plate effect.
Punching press has the crimping 33 of the clear expression of Fig. 2 between spreading sleeve pipe 20 and protection metallic plate 31; they constitute muscle shape and support; these protection metallic plate 31 relative spreading sleeve pipes 20 are provided with especially securely thus, and the contact between this protection metallic plate 31 and the emery wheel 14 can be avoided.
For leave behind from contraction neck 18 spreading sleeve pipe 20 and protective cover of angle steel grinder 19, on contraction neck 18, axial recess 23 is set, on one side it enters cannelure 22, another side freely stops at the front end face that shrinks neck.The width of this axial recess 23 is so to select; promptly can axially slide in the recess 23 by push-and-pull in the projection on the spreading sleeve pipe 20 21; axially the number of recess 23 is corresponding to the number of projection inside on the protective cover of angle steel grinder 19 21; wherein, 4 projections 21 by pressing metal plates are arranged as Fig. 2 finding.
Corresponding at the interval that makes progress in week between the axial recess 23 with the interval between circumferential upper process 21, make that each projection 21 enters in the axial recess 23 by plug spreading cover sleeve pipe 20 on the contraction neck.It is so to be provided with that this axial recess 23 shrinks neck 18 relatively, and the slip of this spreading sleeve pipe 20 can only be carried out on a position of rotation of protective cover of angle steel grinder 19, and this position and use location are not corresponding, and the use location is constant in use.
Have the protective cover 19 of spreading sleeve pipe 20 so to push, this projection 21 is inserted cannelure 22, is rotated away from not use location of protective cover of angle steel grinder 19 by protective cover 19 around the axis of driving shaft 13, and wherein this projection 21 is slided along cannelure 22.
For at the fixing protective cover of angle steel grinder 19 of any position of rotation; but this contraction neck 18 has a manual case fixed latch device 24 that operating key 25 is arranged; but should have a fixedly tab 26 by operating key 25, the space of teeth 27 of the tooth bar 28 that the semicircle that extends radially outwardly of its insertion protective cover of angle steel grinder is provided with.Make it withdraw from space of teeth 27 by this tab 26 of light pressure, this protective cover 19 can be freely swung on contraction neck 18, and does not need aid to may be locked in different lock positions.
In order to take protective cover of angle steel grinder 19 from shrinking neck 18; handle operating key 25; and throw off and the joint face rotation of shrinking the tooth bar 28 of angle steel protective cover 19 on the neck 18, be on cannelure 22 and the scope that axial recess 23 aligns (not use location) until this projection 21.On this position, allow protective cover of angle steel grinder 19 is pulled down down from shrinking neck.
Fig. 2 has represented the vertical view of protective cover of angle steel grinder 19, wherein can be well understood to the semi-circular profile of protective cover of angle steel grinder 19.The circumference of spreading sleeve pipe 20, the semi-circular shape of the tooth bar 28 of backlash 27 and tooth 29 is arranged, and at the muscle 33 of protection metallic plate 31 and spreading sleeve pipe 20.
According to the apprehensible advantage of Fig. 2 be, except that projection 21, interior profile 30 radially aligneds of spreading sleeve pipe 20 constitute a possibility thus, and promptly protective cover of angle steel grinder 19 can be by moulding, and particularly compacting can be made in an operation by single metallic plate.
Claims (9)
1. have and to untie the steel grinder protective cover (19) that is installed in the spreading sleeve pipe (20) on the contraction neck (18) of manual angle steel grinder (10) with adjustable ground; wherein; the radially inner projection (21) of spreading sleeve pipe (20) is inserted the cannelure (22) that shrinks neck (18); free end in the grinder side has a tooth bar (28) that a series of teeth (29) and backlash (27) are arranged; in the zone of shrinking neck (18), bolt-type tab (26) is set; to guarantee that protective cover of angle steel grinder (19) inserts; and this spreading sleeve pipe (20) has one at its outside outward extending diametrically protection metallic plate (31); it is characterized in that this protective cover of angle steel grinder (19) by single moulding, particularly stamped sheet metal is made.
2. protective cover as claimed in claim 1 is characterized in that this metallic plate has consistent metal strength.
3. as the protective cover of claim 1 or 2, it is characterized in that radially inner projection (21) is made of the part of the material strips that extrudes from spreading sleeve pipe (20).
4. the protective cover of one of claim as described above is characterized in that on the zone of tooth bar (28), and radially inner projection (21) is aimed at backlash (27) and is provided with.
5. the protective cover of one of claim as described above is characterized in that between spreading sleeve pipe (20) and protection metallic plate (31), crimping (33), and particularly reinforcement takes shape on the metallic plate.
6. the protective cover of one of claim as described above is characterized in that this protection metallic plate (31) semicircular in shape ground, spreading sleeve pipe (20) relatively tooth bar (28) one sides extend.
7. protective cover as claimed in claim 6, the outer region that it is characterized in that protecting metallic plate (31) be to from spreading sleeve pipe (20) departure direction bending, and constitute a cylindrical outer casing face (32) that plays radially to protect the metallic plate effect.
8. protective cover as claimed in claim 7 is characterized in that the outside of cylindrical outer casing face (32) curves inwardly, and has constituted the axially edge (32a) of protection metallic plate effect.
9. protective cover as claimed in claim 8 is characterized in that this tooth bar (28) protects a side of metallic plate (31) to extend at spreading sleeve pipe (20) relatively semicirclely.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29513331U DE29513331U1 (en) | 1995-08-19 | 1995-08-19 | Angle grinder protection hood |
| DE29513331.7 | 1995-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155462A true CN1155462A (en) | 1997-07-30 |
| CN1079314C CN1079314C (en) | 2002-02-20 |
Family
ID=8011972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96112620A Expired - Fee Related CN1079314C (en) | 1995-08-19 | 1996-08-19 | Protective cover of angle steel grinder |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH09103959A (en) |
| CN (1) | CN1079314C (en) |
| DE (1) | DE29513331U1 (en) |
| IT (1) | IT1283789B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765580B (en) * | 2004-10-29 | 2010-07-21 | 安德烈亚斯.斯蒂尔两合公司 | Protective cover of hand-held abrasive cutting wheel |
| CN1990193B (en) * | 2005-12-30 | 2011-10-05 | 罗伯特·博世有限公司 | Handheld power tool with a guard hood |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10223893B4 (en) * | 2002-05-29 | 2009-08-13 | Festool Gmbh | router |
| SE525836C2 (en) * | 2003-03-31 | 2005-05-10 | Atlas Copco Tools Ab | Grinding machine with explosion protection and spindle lock |
| DE10316182A1 (en) * | 2003-04-09 | 2004-10-28 | Robert Bosch Gmbh | Hand grinder with protective hood |
| DE102004034441A1 (en) * | 2004-07-16 | 2006-02-16 | Narex Česká Lípa a.s. | Hand tool, in particular angle grinder |
| JP4559177B2 (en) * | 2004-09-30 | 2010-10-06 | 株式会社マキタ | Polishing machine cover and polishing machine |
| DE202006021278U1 (en) | 2006-09-06 | 2014-08-13 | Robert Bosch Gmbh | Protective hood of a hand tool machine |
| DE102006041671B4 (en) | 2006-09-06 | 2018-03-29 | Robert Bosch Gmbh | Protective hood of a hand tool machine |
| DE102007017243A1 (en) * | 2007-04-12 | 2008-10-16 | Robert Bosch Gmbh | Machine tool, in particular hand tool |
| JP2012240127A (en) * | 2011-05-16 | 2012-12-10 | Makita Corp | Grinder |
| JP6634248B2 (en) * | 2015-09-10 | 2020-01-22 | 株式会社マキタ | Grinders and covers |
| DE102016106782A1 (en) * | 2016-04-13 | 2017-10-19 | Festool Gmbh | Hand machine tool with a cover device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH682732A5 (en) * | 1991-02-28 | 1993-11-15 | Suhner Intertrade Ag | Protective hood for grinding machine - is fastened to ring engaging with groove in bearing assembly for grinding wheel shaft |
| DE4113641A1 (en) * | 1991-04-26 | 1992-10-29 | Bosch Gmbh Robert | HAND MACHINE TOOL |
| DE4423889C1 (en) * | 1994-07-07 | 1995-06-22 | Atlas Copco Elektrowerkzeuge | Protective hood for hand tool machine, esp. angle grinder |
-
1995
- 1995-08-19 DE DE29513331U patent/DE29513331U1/en not_active Expired - Lifetime
-
1996
- 1996-08-07 JP JP8208477A patent/JPH09103959A/en active Pending
- 1996-08-09 IT IT96MI001739A patent/IT1283789B1/en active IP Right Grant
- 1996-08-19 CN CN96112620A patent/CN1079314C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765580B (en) * | 2004-10-29 | 2010-07-21 | 安德烈亚斯.斯蒂尔两合公司 | Protective cover of hand-held abrasive cutting wheel |
| CN1990193B (en) * | 2005-12-30 | 2011-10-05 | 罗伯特·博世有限公司 | Handheld power tool with a guard hood |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI961739A0 (en) | 1996-08-09 |
| IT1283789B1 (en) | 1998-04-30 |
| DE29513331U1 (en) | 1996-12-12 |
| ITMI961739A1 (en) | 1998-02-09 |
| JPH09103959A (en) | 1997-04-22 |
| CN1079314C (en) | 2002-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020220 Termination date: 20110819 |