CN100571996C - A kind of guard shield that is used for electric tool - Google Patents
A kind of guard shield that is used for electric tool Download PDFInfo
- Publication number
- CN100571996C CN100571996C CNB2005100952922A CN200510095292A CN100571996C CN 100571996 C CN100571996 C CN 100571996C CN B2005100952922 A CNB2005100952922 A CN B2005100952922A CN 200510095292 A CN200510095292 A CN 200510095292A CN 100571996 C CN100571996 C CN 100571996C
- Authority
- CN
- China
- Prior art keywords
- guard shield
- flexible member
- actuator
- bail
- housing
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a kind of guard shield that is used for electric tool, electric tool comprises that housing, guard shield comprise the bail that is connected with housing, and be connected shroud body and actuator with bail, actuator is in primary importance and second place motion, also be provided with the flexible member that flexibly connects with it in the inboard of bail, actuator contacts with flexible member, when actuator unclamps the housing of flexible member and electric tool when primary importance is moved, when actuator is pressed on flexible member on the housing of electric tool when the second place is moved.The present invention can clamp and loosen guard shield fast, realizes the position quick adjustment between guard shield and the electric tool housing.
Description
Technical field
The present invention relates to a kind of guard shield that is used for electric tool, particularly a kind of can unclamping fast with electric tool or clamp, thereby the guard shield of the quick adjustment of realization position.
Background technology
This type electric tool of angle mill, cutting machine and groover is in to workpiece process; often cause that chip splashes; this just need be provided with the protection guard shield between the working head of operating personnel and electric tool; to avoid operating personnel to come to harm; but in the operating process; operating personnel can be on the move, and this also just needs often to adjust the position of guard shield, wishes that in order to raise the efficiency people this guard shield can unclamp fast and clamp so that regulate the position of guard shield apace.Prior art has disclosed the guard shield of various structures and has realized the quick adjustment of position, open the guard shield that 2000-135687 has disclosed a kind of electric tool as the Japan Patent spy, in the inboard of guard shield bail one one end being set fixes, one end is compressing tablet freely, the guard shield bail connects a spanner near compressing tablet free end pivot, the rotating shaft connecting portion of spanner is set to cam-like, and rotary spanner makes cam that the compressing tablet free end is pressed on the connecting portion of electric tool, thereby realizes the guard shield locking.In addition, the guard shield clampband design is the opening shape, its openend connects by helicitic texture, utilize helicitic texture can realize the fine setting of coupling mechanism force during work, but this guard shield is centre part with the compressing tablet, relies on the cam mechanism of spanner end, utilize radial pressure that guard shield is pressed on body, loosening easily in the work, and utilize the screw thread fine setting, make complicated operation.And for example disclosed a kind of guard shield of quick adjustment in another U.S. Pat 6669544 specifications, thereby it is a quick adjustment of straining or loosen the two ends realization guard shield of guard shield bail by tension or pull-off spring, and this guard shield usually made that guard shield can not reliable grip because spring loses efficacy easily.
Summary of the invention
Technical problem to be solved by this invention is: a kind of guard shield that is used for electric tool is provided, thereby can unclamps and clamp the quick adjustment that realizes guard positions apace.
Technical scheme of the present invention is: a kind of guard shield that is used for electric tool, described electric tool comprises housing, described guard shield comprises the bail that is connected with described housing, the shroud body and the actuator that are connected with described bail, described actuator is in primary importance and second place motion, wherein also be provided with flexible member in the inboard of described bail, the two ends of described flexible member are connected on the described bail versatilely, described actuator contacts with described flexible member, when described actuator unclamps described flexible member and described housing when primary importance is moved, when described actuator is pressed on described flexible member on the described housing when the second place is moved.
Element is pressed on the described housing.
The present invention just can clamp and loosen the quick adjustment that guard shield is realized guard shield fast by operating actuator simply, and its clamping force derives from the distortion of flexible member, can provide pretightning force to compensate the variation that changes the clamping force that causes because of the gap automatically by the strain of flexible member, clamping force is constant, thereby can prevent to become flexible and prolonged because of vibration the service life of guard shield.
Description of drawings
The present invention will be further described for the embodiment of the application on the mill of angle below in conjunction with accompanying drawing and the present invention.
Fig. 1 is the three-dimensional exploded view of preferred embodiment of the present invention angle mill.
Fig. 2 is the three-dimensional exploded view of preferred embodiment of the present invention angle mill guard shield.
Fig. 3 is the schematic diagram after the angle mill guard shield of preferred embodiment of the present invention is assembled, and wherein actuator is positioned at primary importance.
Fig. 4 is the schematic diagram after the angle mill guard shield of preferred embodiment of the present invention is assembled, and wherein actuator is positioned at the second place.
Fig. 5 is the partial sectional view after preferred embodiment of the present invention angle mill guard shield and the angle mill housing assembling.
Fig. 6 is the schematic diagram that the actuator of preferred embodiment of the present invention angle mill guard shield drives flexible member work.
Fig. 7 is the part three-dimensional exploded view of the angle mill of preferred embodiment of the present invention, wherein also is provided with gear face on the angle mill housing, also be provided with on the mill guard shield of angle can with the locking member of this gear face engagement.
Wherein:
1 housing; 2 guard shields; 11 axle journals; 111 centre bores; 112 deep-slotted chip breakers;
113 dentation end faces; 12 rotating shafts; 121 external screw threads; 13 top boards; 14 workpieces;
15 lower platens; 151 internal threads; 21 shroud bodies; 211 projections; 22 bails;
221 holes; 222 holes; 23 flexible members; 231 main bodys; 232 legs;
233 locking members; 24 actuators; 241 operating portions; 242 shafts, 243 cam surfaces;
244 holes; 25 pins; The curvature of ρ 1 main body; The curvature of ρ 2 axle journals;
The specific embodiment
Inventive concept of the present invention is the guard shield of quick adjustment, below is that example illustrates creation scheme of the present invention with the angle mill only.But technical scheme of the present invention is applied in the angle mill incessantly, and it also may be used on other electric tools that need regulate guard positions, as cutting machine, groover etc.
With reference to shown in Figure 1, use angle of the present invention mill to comprise housing 1, guard shield 2.Housing 1 comprises axle journal 11 and passes the centre bore 111 of axle journal 11 and the rotating shaft 12 that is rotated by motor (not shown) driving, top board 13, workpiece 14 and lower platen 15, wherein also be provided with deep-slotted chip breaker 112 on the excircle of axle journal 11, the lower end of rotating shaft 12 is provided with external screw thread 121, and lower platen 15 is provided with internal thread 151.Guard shield 2 comprises the shroud body 21 that can partly cover workpiece 14, the marmon clamp lock ring 22 of the sealing of fixedlying connected with shroud body 21, flexible member 23, actuator 24 and pin 25.
Shield structure is with further reference to shown in Figure 2, shroud body 21 also is provided with projection 211 with the connecting portion of bail 22, also be provided with two radial direction through hole 221 on the bail 22 and be arranged on two axially extending bores 222 between the radial direction through hole 221, flexible member 23 comprises arc main body 231 and by extended two legs 232 in main body 231 two ends, actuator 24 comprises operating portion 241 and rotating shaft end 242, also is provided with cam surface 243 and through hole 244 on the shaft 242.
As shown in Figure 3 and Figure 4, after the guard shield assembling, flexible member 23 is positioned at the inboard of bail 22, extended two legs 232 in its main body 231 two ends are socketed in two radial direction through hole 221 of bail 22 versatilely, and wherein the shape of the arc main body 231 of flexible member 23 is arranged so that the curvature ρ 2 of its curvature ρ 1 greater than axle journal 11 (shown in the dotted line).The shaft 242 of actuator 24 is pivotally connected with bail 22 by the pin 25 that passes hole 244 and hole 222, cam surface 243 contacts with flexible member 23, wherein cam surface 243 shapes are arranged so that actuator 24 loosens flexible member 23 when primary importance (as shown in Figure 3) is moved, when actuator 24 radially inwardly pushes flexible member 23 when the second place (as shown in Figure 4) is moved.
Structure after the assembling as shown in Figure 5, top board 13 is passed in the lower end of rotating shaft 12, the centre bore of workpiece 14 is threaded with lower platen 15, makes workpiece 14 with rotating shaft 12 rotation.The bail 22 of guard shield 2 is socketed on the axle journal 11, and the projection 211 on the guard shield 2 is arranged in the deep-slotted chip breaker 112 of axle journal 11, and shroud body 21 parts cover workpiece 14.
With reference to Fig. 6, when needs unclamped guard shield 2, the operating side 241 of operation actuator 24 was to primary importance rotation, and cam 243 unclamps flexible member 23, and flexible member 23 is replied its initial position (as shown in phantom in Figure 6) under self elastic force effect.When needs clamp guard shield 2, the operating portion 241 of actuator 24 is rotated to the second place by primary importance, cam 243 is extruding flexible member 23 inwardly, make it that strain take place, curvature ρ 1 diminishes gradually near the curvature ρ 2 of axle journal 11, make flexible member 23 be pressed on the axle journal 11, thus locking guard shield 2 and housing 1.Because the curvature ρ 2 of the ratio axle journal that the curvature ρ 1 of flexible member 23 is provided with is big, make flexible member 23 exist the part distortion that thereby pretightning force is provided all the time, can compensate the variation that changes the clamping force that causes because of the gap automatically, keep clamping force constant, thereby can prevent the loosening of the guard shield 2 that causes because of vibration.
With reference to Fig. 7, the lower end of axle journal 111 also is provided with face of gear 113, also is provided with the locking member 233 that is meshed with this face of gear 113 on the flexible member 23 and makes guard shield 2 and housing 1 after the locking not to relatively rotate.
According to inventive concept of the present invention, actuator can have various ways, is exactly a bolt as actuator, is threaded with radial screw bore on the bail, rotating bolt extends it in bail also can order about the flexible member distortion, thereby compresses guard shield and housing.Bail 22 also can be open loop, and the two ends of its annular opening connect by other modes that are threaded or industry is known.Projection 211 also can be arranged on the bail 22.Flexibly connect by mode and the bail 22 that is arranged near flexible member 23 two ends, be arranged on the position of main body 231, also belong to the protection domain that flexible member 23 two ends and bail 22 flexibly connect near two ends as leg 232.
According to inventive concept of the present invention as can be known, guard shield of the present invention is used with concrete electric tool such as angle and is ground, and internal structure such as cutting machine or groover and working head are irrelevant, as long as this electric tool can connect with the guard shield bail.
Claims (9)
1. guard shield that is used for electric tool, described electric tool comprises housing, described guard shield comprises the bail that is connected with described housing, the shroud body and the actuator that are connected with described bail, described actuator is in primary importance and second place motion, it is characterized in that: the inboard at described bail also is provided with flexible member, the two ends of described flexible member are connected on the described bail versatilely, described actuator contacts with described flexible member, when described actuator unclamps described flexible member and described housing when primary importance is moved, when described actuator is pressed on described flexible member on the described housing when the second place is moved.
2. guard shield according to claim 1 is characterized in that: the contact site of described actuator and described flexible member roughly is positioned at described flexible member middle part.
3. guard shield according to claim 1 is characterized in that: described flexible member comprises the arc main body and by extended at least one leg of described main body, correspondence is provided with at least one hole and accommodates described leg movably on the described bail.
4. guard shield according to claim 3 is characterized in that: described leg is separately positioned on the two ends of described main body.
5. guard shield according to claim 3 is characterized in that: described housing comprises the axle journal that is connected with described bail, and the curvature of described axle journal is less than the curvature of described arc main body.
6. guard shield according to claim 3 is characterized in that: when described actuator when the second place is moved, described arc main body strain, its curvature diminishes.
7. guard shield according to claim 3 is characterized in that: also be provided with locking member on the described arc main body, described locking member is meshed with dentation end face on being arranged on described housing.
8. guard shield according to claim 1 is characterized in that: described actuator is pivotally connected on described bail, also is provided with the cam surface that contacts with described flexible member at the rotating shaft position of described actuator.
9. guard shield according to claim 1 is characterized in that: described bail is the ring of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100952922A CN100571996C (en) | 2005-11-02 | 2005-11-02 | A kind of guard shield that is used for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100952922A CN100571996C (en) | 2005-11-02 | 2005-11-02 | A kind of guard shield that is used for electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1762666A CN1762666A (en) | 2006-04-26 |
| CN100571996C true CN100571996C (en) | 2009-12-23 |
Family
ID=36747092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100952922A Expired - Fee Related CN100571996C (en) | 2005-11-02 | 2005-11-02 | A kind of guard shield that is used for electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100571996C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703765B (en) * | 2012-10-18 | 2018-02-16 | 利优比株式会社 | electric edge trimmer |
| CN106671030B (en) * | 2016-12-28 | 2023-07-21 | 浙江亚特电器股份有限公司 | Multifunctional electric tool |
| CN107553416B (en) * | 2017-10-25 | 2024-03-15 | 锐奇控股股份有限公司 | Electric tool protection casing adjusting device and electric tool |
-
2005
- 2005-11-02 CN CNB2005100952922A patent/CN100571996C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1762666A (en) | 2006-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106737446B (en) | Hand-held tool and clamping device thereof | |
| AU673545B2 (en) | A screw clamp | |
| US3912411A (en) | Thread latching mechanism | |
| CN101541482B (en) | Additional hand grip having an eccentric tension lever for a hand machine tool | |
| US3618994A (en) | Arbor nut | |
| CN100571996C (en) | A kind of guard shield that is used for electric tool | |
| CN111645036B (en) | Work tool | |
| JP4201950B2 (en) | Combined piece | |
| KR100437486B1 (en) | Quick coupler for construction machinery | |
| DE102012004457A1 (en) | application tool | |
| US6273659B1 (en) | Locking mechanism for a rotary working member | |
| CN103978427B (en) | Fixture | |
| US4552042A (en) | Tightening apparatus | |
| WO2022057945A9 (en) | Engagement and release device having range of motion, and angle grinder having same | |
| JP4892891B2 (en) | Eyelet sewing machine cloth cutting device | |
| US5267484A (en) | Quill-feed speed handle | |
| KR102603975B1 (en) | Die Grinder Grinding Element Replacement Module | |
| CN117733799A (en) | Quick change device and electric tool | |
| KR20210041140A (en) | Cylindrical grinding wheel Mounting structure for Grinder | |
| CN220186005U (en) | Auxiliary power assisting device for opening valve and valve | |
| CN215316075U (en) | Split chuck for angle grinder | |
| CN217618975U (en) | Locking gasket assembly quality | |
| CN219665771U (en) | Cutter bar locking device | |
| CN219075571U (en) | Auxiliary handle for electric tool and electric tool | |
| CN213259214U (en) | Impact wrench and overload prevention device thereof |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Shroud for electric tool Effective date of registration: 20140515 Granted publication date: 20091223 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou Registration number: 2014990000362 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180416 Granted publication date: 20091223 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou Registration number: 2014990000362 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20201102 |