CN105345753A - Auxiliary handle and handheld type electric tool - Google Patents
Auxiliary handle and handheld type electric tool Download PDFInfo
- Publication number
- CN105345753A CN105345753A CN201410407396.1A CN201410407396A CN105345753A CN 105345753 A CN105345753 A CN 105345753A CN 201410407396 A CN201410407396 A CN 201410407396A CN 105345753 A CN105345753 A CN 105345753A
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- handle
- tightening member
- clamping band
- connection element
- auxiliary
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Abstract
The invention provides an auxiliary handle. The auxiliary handle comprises a clamping belt, a handle body and a connecting mechanism, wherein the clamping belt is used for being mounted on an engine body of a handheld type electric tool, the handle body is held by an operator, and the connecting mechanism is used for connecting the clamping belt to the handle body. The connecting mechanism comprises a pair of fastening elements, a bolt and a knob which can be screwed on the bolt and is provided with a thread, wherein elastic elements are arranged in grooves in the fastening elements and located between the free ends of the clamping belt and the walls of the grooves. The invention further provides the handheld type electric tool comprising the auxiliary handle. According to the auxiliary handle and the handheld type electric tool, the elastic elements are squeezed and absorb vibration force from the clamping belt, and therefore vibration transmitted to the operator is reduced significantly.
Description
Technical field
The present invention relates to electric tool, particularly relate to a kind of auxiliary handle for hand held electric tool and comprise the hand held electric tool of this auxiliary handle.
Background technology
As well known, such as the hand held electric tool of electric hammer, electric pick and electric drill etc. is provided with fixing main handle and dismountable auxiliary handle usually, to make when hand held electric tool runs operator can one be held by main handle, another is held by auxiliary handle simultaneously.The installation site of auxiliary handle is normally in the position of the front portion of electric hand-held power tool body near tool heads.During operation, the drive systems tool heads in electric tool is axially moved or rotary motion, thus contacts with working face to carry out relevant operation.Can body be delivered to from tool heads in the great vibrations contacting to produce when carrying out relevant operation with working face easily and be delivered to auxiliary handle by body, and then be delivered to operator from auxiliary handle, thus make operator feel very uncomfortable, even the hand of operator is damaged.
Thus, need to improve existing auxiliary handle and hand held electric tool.
Summary of the invention
Object of the present invention will overcome above-mentioned at least one defect of the prior art exactly, propose a kind of auxiliary handle and pack the hand held electric tool of this auxiliary handle, this auxiliary handle and hand held electric tool can reduce significantly to be in a simple manner decoupled delivered to body from tool heads and be delivered to auxiliary handle by body and then be delivered to the vibration of operator from auxiliary handle, thus improve the comfort of hand held electric tool and prevent from damaging the hand of operator.
For this reason, according to an aspect of the present invention, a kind of auxiliary handle is provided, comprises:
Clamping band on the body being installed to hand held electric tool;
The handle grasped by operator; And
For described clamping band being connected to the bindiny mechanism on described handle;
Wherein, described bindiny mechanism comprises:
Be respectively used to the tightening member of the free end of fixing described clamping band for a pair, the free end of described clamping band relative to the part bending of described clamping band between pair of fastening, described tightening member each on be formed with the groove of the free end being respectively used to the bending receiving described clamping band;
Through the bolt of the other end of another in an end of described handle, described tightening member, the part of described clamping band described tightening member, described tightening member and described handle; And
The threaded knob on described bolt can be tightened in;
It is characterized in that, in described groove, be provided with the flexible member between the free end and the wall of described groove of described clamping band.
Alternatively, described flexible member is the disc spring group between the both sides of the free end being arranged on described clamping band and the wall of described groove.
Alternatively, the both sides of a free end of clamping band described in described groove on a described tightening member are respectively provided to a few disc spring group, and the both sides of another free end of clamping band described in described groove on another tightening member are also respectively provided to a few disc spring group.
Alternatively, each described disc spring group comprises at least one disc spring.
Alternatively, each described disc spring group comprises four disc springs stacked.
Alternatively, described disc spring group is fixed in described groove by screw.
Alternatively, described flexible member is be arranged on the block rubber in described groove, and the free end of described clamping band inserts in described block rubber respectively.
Alternatively, described flexible member is sheet spring, leaf spring or the helical spring between the both sides of the free end being arranged on described clamping band and the wall of described groove.
Alternatively, described tightening member is directly connected with the end of described handle, the surface that the end of described tightening member and described handle is bonded with each other is formed with intermeshing convex-concave portion respectively, rotates relative to each other to prevent them.
Alternatively, one in described tightening member to form with an end of described handle and the other end of another and described handle in described tightening member forms.
Alternatively, described bindiny mechanism also comprises a pair Connection Element between described tightening member and the end of described handle, described Connection Element is used for the end of described tightening member and described handle couple together and prevent described tightening member from rotating relative to the end of described handle, and described bolt is also through another in described Connection Element and described Connection Element.
Preferably, the surface that on the surface that described Connection Element and described tightening member are bonded with each other and the end of described Connection Element and described handle is bonded with each other is formed with intermeshing convex-concave portion respectively, rotates relative to each other to prevent them.
Alternatively, one in described Connection Element corresponding to described tightening member one forms, another corresponding to described tightening member of another in described Connection Element forms, and the surface that is bonded with each other, the end of described Connection Element and described handle is formed with intermeshing convex-concave portion respectively, rotate relative to each other to prevent them.
Alternatively, one in described Connection Element, an end of corresponding and described handle forms in described tightening member, in described Connection Element another, the other end of corresponding another and described handle forms in described tightening member.
Alternatively, described tightening member is provided with the protuberance with arcwall face, is respectively used to the main part against described clamping band.
According to an aspect of the present invention, provide a kind of hand held electric tool, it is characterized in that, described hand held electric tool comprises auxiliary handle as above.
Alternatively, described hand held electric tool is electric hammer, electric pick or electric drill.
According to the present invention, owing to being provided with the flexible member between the free end and the wall of described groove of described clamping band in described groove, when tool heads contacts the vibration passing that produces to auxiliary handle with working face, flexible member is squeezed and absorbs the vibration force from clamping band, thus reduce the vibration being delivered to operator significantly, make operator feel relatively comfortable, and can avoid damaging the hand of operator.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the hand held electric tool according to the first exemplary embodiment of the present invention;
Fig. 2 is along the cross sectional representation that median plane intercepts under the confined state of hand held electric tool shown in Fig. 1;
Fig. 3 is the partial enlarged drawing being enclosed the part A come in Fig. 2 by circle;
Fig. 4 is the cross sectional representation similar to Fig. 2 along another planar interception under the confined state of hand held electric tool shown in Fig. 1;
Fig. 5 is the partial enlarged drawing being enclosed the part A come in Fig. 4 by circle;
Fig. 6 is the cross sectional representation according to disc spring group of the present invention;
Fig. 7 is according to the hand held electric tool of the second exemplary embodiment of the present invention and the similar cross sectional representation of Fig. 4; And
Fig. 8 is the partial enlarged drawing being enclosed the part A come in Fig. 7 by circle.
Detailed description of the invention
Each preferred embodiment of the present invention is described in detail below in conjunction with example.It will be understood by those skilled in the art that this embodiment is exemplary, it does not also mean that and forms any restriction to the present invention.
Fig. 1 is the exploded perspective view of the hand held electric tool according to the first exemplary embodiment of the present invention, Fig. 2 is along the cross sectional representation that median plane intercepts under the confined state of hand held electric tool shown in Fig. 1, and Fig. 3 is the partial enlarged drawing being enclosed the part A come in Fig. 2 by circle.As illustrated in fig. 1 and 2, auxiliary handle 1 substantially comprise for being installed to hand held electric tool (not shown) body on clamping band 3, the handle 5 grasped by operator and for clamping band 3 being connected to the bindiny mechanism 7 on handle 5.Although handle 5 becomes D shape substantially, it also can become other any suitable shape.
As is known in the art, the bindiny mechanism of any suitable form can be adopted as required.According to an exemplary embodiment of the present, bindiny mechanism 7 comprises tightening member 9a and 9b of free end 3a and 3b being respectively used to geometrical clamp taut band 3 for a pair.In a preferred embodiment, free end 3a and 3b of clamping band 3 is relative to the part of clamping band 3 between tightening member 9a and 9b (preferred less perpendicular ground) bending.Tightening member 9a and 9b each on be formed with groove 11a, 11b, be respectively used to receive free end 3a and 3b of clamping band 3.Bindiny mechanism 7 also comprises a pair for being coupled together by end 5a and 5b of tightening member 9a and 9b and handle 5 and preventing Connection Element 13a and 13b that tightening member rotates relative to the end of handle.Be formed with intermeshing convex-concave portion respectively on the surface that Connection Element 13a and 13b and tightening member 9a and 9b is bonded with each other and on the surface that is bonded with each other of end 5a and 5b of Connection Element 13a and 13b and handle 5, rotate relative to each other to prevent them.Intermeshing convex-concave portion on the surface that Connection Element 13a and 13b and tightening member 9a and 9b is bonded with each other and on the surface that is bonded with each other of end 5a and 5b of Connection Element 13a and 13b and handle 5 also contributes to the orientation of regulating handle 5 relative to body.In shown preferred embodiment, the convex-concave portion on the surface that Connection Element 13a and 13b and tightening member 9a and 9b are bonded with each other comprises the corrugated part mutually mated; Convex-concave portion on the surface that end 5a and 5b of Connection Element 13a and 13b and handle 5 is bonded with each other comprises the interior hexagonal recess be formed on Connection Element 13a and 13b and the outer hexagon protuberance be formed on end 5a and 5b of handle 5.It should be understood that this convex-concave portion can precedent as other any suitable shapes such as triangle, quadrangle, ellipses; Convex-concave portion also can become other any suitable form.In shown preferred embodiment, Connection Element 13a and 13b and tightening member 9a and 9b is formed separately, and it should be understood that Connection Element 13a and tightening member 9a and Connection Element 13b and tightening member 9b can form.Certainly, Connection Element 13a and tightening member 9a and Connection Element 13b and tightening member 9b forms with handle 5 is also feasible.It will also be appreciated that it is also feasible for omitting Connection Element 13a and 13b and end 5a and 5b of tightening member 9a and 9b and handle 5 is directly coupled together.In this case, the surface that end 5a and 5b of tightening member 9a and 9b and handle 5 is bonded with each other is formed with intermeshing convex-concave portion respectively.Certainly, tightening member 9a and tightening member 9b forms with handle 5 is also feasible.Bindiny mechanism 7 also comprises the bolt 15 of the end 5b through end 5a, the Connection Element 13a of handle 5, tightening member 9a, the part of clamping band 3 tightening member 9a and 9b, tightening member 9b, Connection Element 13b and handle 5, and can be tightened on bolt 15 so that the threaded knob 17 tightened together by these elements.
After auxiliary handle 1 installs, the main part 3c of its clamping band 3 is substantially circular.In order to prevent the main part 3c of clamping band 3 from exceedingly rotating relative to handle 5, tightening member 9a and 9b can be provided with protuberance 9e and 9f of arcwall face 9c, 9d.The arcwall face 9c of protuberance 9e and the arcwall face 9d of protuberance 9f respectively against the main part 3c of clamping band 3, to limit the rotation of the main part 3c of clamping band 3.
According to the present invention, the groove 11a on tightening member 9a and 9b, is provided with the flexible member be positioned between free end 3a and 3b of clamping band 3 and the wall of groove 11a, 11b in 11b.In the first exemplary embodiment shown in Fig. 1-3, flexible member is 8 disc spring groups between the both sides of free end 3a and 3b being arranged on clamping band 3 and the wall of groove 11a, 11b.Particularly, in the groove 11a on tightening member 9a, the both sides of the free end 3a of clamping band 3 arrange two disc spring group 19a respectively, and in groove 11b on tightening member 9b, the both sides of the free end 3b of clamping band 3 arrange two disc spring group 19b respectively.In order to prevent disc spring from groove 11a, coming off in 11b, can adopt screw 21a and 21b being screwed into disc spring group and clamping band that disc spring group 19a and disc spring group 19b is fixed on groove 11a, in 11b, as shown in Figures 4 and 5.In a preferred embodiment, each disc spring group comprises four disc springs stacked, as shown in Figure 6.
It should be understood that the size according to groove 11a, 11b, in the groove 11a on tightening member 9a, the both sides of the free end 3a of clamping band 3 can also be respectively arranged with one or disc spring group 19a more than two.Equally, in the groove 11b on tightening member 9b, the both sides of the free end 3b of clamping band 3 also can be respectively arranged with one or disc spring group 19b more than two.In addition, the number of disc spring that each disc spring group comprises more than four or can be less than four (such as, only having a disc spring).In addition, it is also feasible for only arranging disc spring group in the side of free end 3a and 3b of clamping band 3.
Fig. 7 is that Fig. 8 is the partial enlarged drawing being enclosed the part A come in Fig. 7 by circle according to the hand held electric tool of the second exemplary embodiment of the present invention and Fig. 4 similar cross sectional representation.The second exemplary embodiment of the present invention shown in Fig. 7 with 8 is substantially identical with the first exemplary embodiment of the present invention, thus omits the repeated description to same section.The difference of the hand held electric tool of the second exemplary embodiment of the present invention shown in Fig. 7 and 8 and the hand held electric tool of the first exemplary embodiment of the present invention is, instead of disc spring group 19a and 19b with the flexible member of such as block rubber 23a and 23b.Block rubber 23a and 23b is separately positioned on the groove 11a on tightening member 9a and 9b, and in 11b, free end 3a and 3b of clamping band 3 is then inserted in block rubber 23a and 23b respectively.
It should be understood that except adopting block rubber 23a and 23b to substitute except disc spring group, can also adopt sheet spring, leaf spring even helical spring carry out alternative disc spring group.
When hand held electric tool according to the present invention runs, tool heads contacts the great vibrations produced and is delivered to auxiliary handle by body with working face, auxiliary handle swings back and forth relative to the initial position of auxiliary handle along with the axial direction of body along tool heads, thus on the wall of the groove of tightening member, apply the active force of the radial direction of the main part along clamping band.The such as flexible member of disc spring group or block rubber is subject to the extruding of the active force of radial direction and absorbs the active force of radial direction, thus reduce the vibration being delivered to operator significantly, make operator feel relatively comfortable, and can avoid damaging the hand of operator.
Below in conjunction with specific embodiments to invention has been detailed description.Obviously, above description and embodiment illustrated in the accompanying drawings all should be understood to be exemplary, and are not construed as limiting the invention.To those skilled in the art, can carry out various modification or amendment when not departing from spirit of the present invention to it, these modification or amendment all do not depart from the scope of the present invention.
Claims (17)
1. an auxiliary handle (1), comprising:
Clamping band (3) on the body being installed to hand held electric tool;
The handle (5) grasped by operator; And
For described clamping band (3) being connected to the bindiny mechanism (7) on described handle (5);
Wherein, described bindiny mechanism (7) comprising:
Be respectively used to the free end (3a of fixing described clamping band (3) for a pair, tightening member (9a 3b), 9b), free end (the 3a of described clamping band (3), 3b) be positioned at pair of fastening (9a relative to described clamping band (3), part bending 9b), described tightening member (9a, 9b) each is formed with the free end (3a being respectively used to the bending receiving described clamping band (3), groove (11a, 11b) 3b);
The bolt (15) of the part between described tightening member (9a, 9b), described tightening member another (9b) and the other end (5b) of described handle (5) is positioned at through (9a) in an end (5a) of described handle (5), described tightening member, described clamping band (3); And
The threaded knob (17) on described bolt (15) can be tightened in;
It is characterized in that, in described groove (11a, 11b), be provided with the flexible member between the free end (3a, 3b) being positioned at described clamping band (3) and the wall of described groove (11a, 11b).
2. auxiliary handle according to claim 1, is characterized in that, described flexible member is for being arranged on the disc spring group between the both sides of the free end (3a, 3b) of described clamping band (3) and the wall of described groove (11a, 11b).
3. auxiliary handle according to claim 2, it is characterized in that, the both sides of a free end (3a) of clamping band (3) described in described groove on a described tightening member (9a) are respectively provided to a few disc spring group (19a), and the both sides of another free end (3b) of clamping band (3) described in described groove on another tightening member (9b) are also respectively provided to a few disc spring group (19b).
4. auxiliary handle according to claim 2, is characterized in that, each described disc spring group comprises at least one disc spring.
5. auxiliary handle according to claim 2, is characterized in that, each described disc spring group comprises four disc springs stacked.
6. auxiliary handle according to claim 2, is characterized in that, described disc spring group is fixed in described groove (11a, 11b) by screw.
7. auxiliary handle according to claim 1, it is characterized in that, described flexible member is for being arranged on described groove (11a, block rubber (23a 11b), 23b), the free end (3a, 3b) of described clamping band (3) inserts in described block rubber (23a, 23b) respectively.
8. auxiliary handle according to claim 1, it is characterized in that, described flexible member is for being arranged on sheet spring, leaf spring or the helical spring between the both sides of the free end (3a, 3b) of described clamping band (3) and the wall of described groove (11a, 11b).
9. auxiliary handle according to claim 1, it is characterized in that, described tightening member (9a, 9b) with the end (5a of described handle (5), 5b) directly connect, the end (5a of described tightening member (9a, 9b) and described handle (5), surface 5b) be bonded with each other is formed with respectively intermeshing convex-concave portion, rotates relative to each other to prevent them.
10. auxiliary handle according to claim 1, it is characterized in that, an end (5a) of (9a) in described tightening member and described handle (5) forms and another (9b) in described tightening member forms with the other end (5b) of described handle (5).
11. auxiliary handles according to claim 1, it is characterized in that, described bindiny mechanism (7) also comprises and is positioned at described tightening member (9a, 9b) with the end (5a of described handle (5), a pair Connection Element (13a 5b), 13b), described Connection Element (13a, 13b) for by described tightening member (9a, 9b) with the end (5a of described handle (5), 5b) couple together and prevent described tightening member from rotating relative to the end of described handle, described bolt (15) is also through (13a) in described Connection Element and another (13b) in described Connection Element.
12. auxiliary handles according to claim 11, it is characterized in that, described Connection Element (13a, 13b) with described tightening member (9a, on surface 9b) be bonded with each other and described Connection Element (13a, surface 13b) be bonded with each other with the end (5a, 5b) of described handle (5) is formed with intermeshing convex-concave portion respectively, rotates relative to each other to prevent them.
13. auxiliary handles according to claim 11, it is characterized in that, one (13a) in described Connection Element one (9a) corresponding to described tightening member forms, another (13b) in described Connection Element another (9b) corresponding to described tightening member forms, and described Connection Element (13a, 13b) with the end (5a of described handle (5), surface 5b) be bonded with each other is formed with respectively intermeshing convex-concave portion, rotates relative to each other to prevent them.
14. auxiliary handles according to claim 11, it is characterized in that, in (13a) in described Connection Element, described tightening member, an end (5a) of corresponding one (9a) and described handle (5) forms, and in another (13b) in described Connection Element, described tightening member, the other end (5b) of corresponding another (9b) and described handle (5) forms.
15. auxiliary handles according to claim 1, it is characterized in that, described tightening member (9a, 9b) be provided with arcwall face (9c, protuberance (9e 9d), 9f), the main part (3c) against described clamping band (3) is respectively used to.
16. 1 kinds of hand held electric tools, is characterized in that, described hand held electric tool comprises the auxiliary handle as above described in arbitrary claim.
17. hand held electric tools according to claim 16, is characterized in that, described hand held electric tool is electric hammer, electric pick or electric drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407396.1A CN105345753B (en) | 2014-08-19 | 2014-08-19 | Auxiliary handle and hand held electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407396.1A CN105345753B (en) | 2014-08-19 | 2014-08-19 | Auxiliary handle and hand held electric tool |
Publications (2)
| Publication Number | Publication Date |
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| CN105345753A true CN105345753A (en) | 2016-02-24 |
| CN105345753B CN105345753B (en) | 2018-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407396.1A Active CN105345753B (en) | 2014-08-19 | 2014-08-19 | Auxiliary handle and hand held electric tool |
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| Country | Link |
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| CN (1) | CN105345753B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113853278A (en) * | 2019-06-26 | 2021-12-28 | 喜利得股份公司 | Side handle for hand-held electric power tool |
| US11583992B2 (en) | 2021-03-25 | 2023-02-21 | Milwaukee Electric Tool Corporation | Side handle for power tool |
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| JPH08243953A (en) * | 1995-03-07 | 1996-09-24 | Makita Corp | Side handle of motor-driven tool |
| JPH09109065A (en) * | 1995-10-19 | 1997-04-28 | Makita Corp | Auxiliary handle for power tool |
| GB2407058A (en) * | 2003-10-15 | 2005-04-20 | Bosch Gmbh Robert | Auxiliary handle with lighting device |
| CN101186034A (en) * | 2006-11-24 | 2008-05-28 | 罗伯特·博世有限公司 | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| CN101274427A (en) * | 2007-03-29 | 2008-10-01 | 株式会社牧田 | Handles for hand-held tools |
| DE102009000598A1 (en) * | 2008-02-15 | 2009-08-20 | Robert Bosch Gmbh | Vibration-decoupled handle |
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2014
- 2014-08-19 CN CN201410407396.1A patent/CN105345753B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08243953A (en) * | 1995-03-07 | 1996-09-24 | Makita Corp | Side handle of motor-driven tool |
| JPH09109065A (en) * | 1995-10-19 | 1997-04-28 | Makita Corp | Auxiliary handle for power tool |
| GB2407058A (en) * | 2003-10-15 | 2005-04-20 | Bosch Gmbh Robert | Auxiliary handle with lighting device |
| CN101186034A (en) * | 2006-11-24 | 2008-05-28 | 罗伯特·博世有限公司 | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| CN101274427A (en) * | 2007-03-29 | 2008-10-01 | 株式会社牧田 | Handles for hand-held tools |
| DE102009000598A1 (en) * | 2008-02-15 | 2009-08-20 | Robert Bosch Gmbh | Vibration-decoupled handle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113853278A (en) * | 2019-06-26 | 2021-12-28 | 喜利得股份公司 | Side handle for hand-held electric power tool |
| US11583992B2 (en) | 2021-03-25 | 2023-02-21 | Milwaukee Electric Tool Corporation | Side handle for power tool |
| US11919140B2 (en) | 2021-03-25 | 2024-03-05 | Milwaukee Electric Tool Corporation | Side handle for power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105345753B (en) | 2018-12-28 |
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