CN105345753B - Auxiliary handle and hand held electric tool - Google Patents
Auxiliary handle and hand held electric tool Download PDFInfo
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- CN105345753B CN105345753B CN201410407396.1A CN201410407396A CN105345753B CN 105345753 B CN105345753 B CN 105345753B CN 201410407396 A CN201410407396 A CN 201410407396A CN 105345753 B CN105345753 B CN 105345753B
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- tightening member
- handle
- clamping band
- auxiliary handle
- connecting element
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Abstract
The present invention provide auxiliary handle, including on the body for installation into hand held electric tool clamping band, by operator grasp handle；And the bindiny mechanism for being connected to the clamping band on the handle.The bindiny mechanism includes a pair of fastening, bolt, the threaded knob that can be tightened on the bolt, wherein in the elastic element being provided between the free end of the clamping band and the wall of the groove in the groove on the tightening member.The present invention also provides the hand held electric tools including this auxiliary handle.According to the present invention, elastic element is squeezed and absorbs the vibration force from clamping band, to reduce the vibration for being transmitted to operator significantly.
Description
Technical field
The present invention relates to electric tools more particularly to a kind of for the auxiliary handle of hand held electric tool and including this
The hand held electric tool of kind auxiliary handle.
Background technique
As well known, the hand held electric tool of electric hammer, electric pick and electric drill etc. is usually provided with fixed
Main handle and dismountable auxiliary handle, so that operator can be held by main with one in hand held electric tool operation
Hand, while another is held by auxiliary handle.The installation site of auxiliary handle is usually before electric hand-held power tool body
Portion is close to the position of tool heads.When operation, the drive system driving instrument head in electric tool is moved axially so or is rotated
Movement, thus to work face contact to carry out related operation.Huge generated when related operation to work face contact
Vibration easily can be transmitted to body from tool heads and be transmitted to auxiliary handle by body, and then transmit from auxiliary handle
To operator, so that operator be made to feel very uncomfortable, or even the hand of operator is damaged.
It is then desired to be improved to existing auxiliary handle and hand held electric tool.
Summary of the invention
Present invention aim to overcome above-mentioned at least one defect in the prior art, propose a kind of auxiliary handle with
And the hand held electric tool of this auxiliary handle of packaging, this auxiliary handle and hand held electric tool can be in a simple manner
Reduce significantly and is transmitted to body from tool heads and auxiliary handle is transmitted to by body and then is transmitted to operation from auxiliary handle
The vibration of person, to improve the comfort of hand held electric tool and prevent from damaging the hand of operator.
For this purpose, it is according to an aspect of the present invention, a kind of auxiliary handle is provided, comprising:
For installation into the clamping band on the body of hand held electric tool；
The handle grasped by operator；And
Bindiny mechanism for being connected to the clamping band on the handle；
Wherein, the bindiny mechanism includes:
A pair is respectively used to fix the tightening member of the free end of the clamping band, the free end of the clamping band relative to
Part of the clamping band between a pair of fastening is bent, and is formed on each of described tightening member and is respectively used to connect
Receive the groove of the free end of the bending of the clamping band；
One in an end of the handle, the tightening member, that the clamping band is located at the fastening is first
The bolt of the other end of another and the handle in the part, the tightening member between part；And
The threaded knob that can be tightened on the bolt；
It is characterized in that, being provided in the groove between the free end of the clamping band and the wall of the groove
Elastic element.
Optionally, the elastic element is to be arranged between the two sides of the free end of the clamping band and the wall of the groove
Disc spring group.
Optionally, the two sides of a free end of the clamping band described in the groove on a tightening member point
At least one first disc spring group is not set, and clamping band described in the groove on another tightening member it is another from
At least second disc spring group is also respectively set by the two sides held.
Optionally, each disc spring group includes at least one disc spring.
Optionally, each disc spring group includes four disc springs stacked.
Optionally, the disc spring group is fixed in the groove by screw.
Optionally, the elastic element is the rubber block being arranged in the groove, the free end difference of the clamping band
It is inserted into the rubber block.
Optionally, the elastic element is to be arranged between the two sides of the free end of the clamping band and the wall of the groove
Leaf spring, leaf spring or helical spring.
Optionally, the end of the tightening member and the handle is directly connected to, the tightening member and the handle
Intermeshing convex-concave portion is respectively formed on the surface that end is interconnected, to prevent them to be rotated relative to one another.
Optionally, an end of one in the tightening member and the handle is integrally formed and described tight
Gu the other end of another and the handle in element is integrally formed.
Optionally, the bindiny mechanism further includes that a pair between the tightening member and the end of the handle connects
Element is connect, the connecting element is used to connect the end of the tightening member and the handle and prevents the fastening
Element is rotated relative to the end of the handle, and the bolt also passes through one and the connecting element in the connecting element
In another.
Preferably, on the surface that the connecting element and the tightening member are interconnected and the connecting element with
Intermeshing convex-concave portion is respectively formed on the surface that the end of the handle is interconnected, to prevent them from turning relative to each other
It is dynamic.
Optionally, one in the connecting element one corresponding with the tightening member is integrally formed, described
Another in connecting element is integrally formed with corresponding another in the tightening member and the connecting element and institute
It states and is respectively formed with intermeshing convex-concave portion on the surface that the end of handle is interconnected, to prevent them from turning relative to each other
It is dynamic.
Optionally, one in the connecting element, in the tightening member corresponding one and the handle one
A end is integrally formed, in the connecting element another, corresponding another and the hand in the tightening member
The other end of handle is integrally formed.
Optionally, the tightening member is provided with the protruding portion with arcwall face, is respectively used to against the clamping band
Main part.
According to an aspect of the present invention, a kind of hand held electric tool is provided, which is characterized in that the hand electric work
Tool includes auxiliary handle as described above.
Optionally, the hand held electric tool is electric hammer, electric pick or electric drill.
According to the present invention, due to being provided with the free end positioned at the clamping band and the wall of the groove in the groove
Between elastic element, when tool heads and work face contact generate vibration be transmitted to auxiliary handle, elastic element is squeezed
And the vibration force from clamping band is absorbed, to reduce the vibration for being transmitted to operator significantly, operator is made to feel opposite
It is comfortable, and can avoid damaging the hand of operator.
Detailed description of the invention
Fig. 1 is the exploded perspective view of the hand held electric tool of the first exemplary embodiment according to the present invention；
Fig. 2 is the cross-sectional view intercepted under hand held electric tool assembled state shown in Fig. 1 along median plane；
Fig. 3 is the partial enlarged view for being enclosed the part A come in Fig. 2 by circle；
Fig. 4 is the cross section similar with Fig. 2 intercepted under hand held electric tool assembled state shown in Fig. 1 along another plane
Schematic diagram；
Fig. 5 is the partial enlarged view for being enclosed the part A come in Fig. 4 by circle；
Fig. 6 is the cross-sectional view of disc spring group according to the present invention；
Fig. 7 be according to the present invention the hand held electric tool with Fig. 4 of the second exemplary embodiment it is similar cross section signal
Figure；And
Fig. 8 is the partial enlarged view for being enclosed the part A come in Fig. 7 by circle.
Specific embodiment
Below with reference to each preferred embodiment of example detailed description of the present invention.It will be understood by those skilled in the art that should
Embodiment is exemplary, it is not meant to form any restrictions to the present invention.
Fig. 1 is the exploded perspective view of the hand held electric tool of the first exemplary embodiment according to the present invention, and Fig. 2 is Fig. 1
The cross-sectional view intercepted under shown hand held electric tool assembled state along median plane, Fig. 3 is to be enclosed in Fig. 2 by circle
The partial enlarged view of the part A come.As illustrated in fig. 1 and 2, auxiliary handle 1 is generallyd include for installation into hand held electric tool
Clamping band 3 on the body of (not shown), the handle 5 grasped by operator and for clamping band 3 to be connected to handle 5
Bindiny mechanism 7.Although the generally D-shaped of handle 5, it can also be at other any suitable shapes.
As is known in the art, it can according to need the bindiny mechanism using any suitable form.According to the present invention
Exemplary embodiment, bindiny mechanism 7 include a pair be respectively used to fix to clamp the free end 3a and 3b of band 3 tightening member 9a and
9b.In a preferred embodiment, the free end 3a and 3b of clamping band 3 is located between tightening member 9a and 9b relative to clamping band 3
Partially (preferably generally vertically) bend.Fluted 11a, 11b are formed on each of tightening member 9a and 9b, is respectively used to receive
The free end 3a and 3b of clamping band 3.Bindiny mechanism 7 further includes a pair of is used for the end 5a of tightening member 9a and 9b and handle 5
The connecting element 13a and 13b for being connected with 5b and preventing tightening member from rotating relative to the end of handle.Connecting element
On the surface that 13a and 13b and tightening member 9a and 9b are interconnected and the end 5a of connecting element 13a and 13b and handle 5
Intermeshing convex-concave portion is respectively formed on the surface being interconnected with 5b, to prevent them to be rotated relative to one another.Connection member
On the surface that part 13a and 13b and tightening member 9a and 9b the are interconnected and end of connecting element 13a and 13b and handle 5
Intermeshing convex-concave portion on the surface that 5a and 5b are interconnected additionally aids orientation of the regulation handle 5 relative to body.?
In shown preferred embodiment, the convex-concave portion on surface that connecting element 13a and 13b is interconnected with tightening member 9a and 9b includes
The corrugated part being mutually matched；The convex-concave portion on surface that the end 5a and 5b of connecting element 13a and 13b and handle 5 are interconnected
Including outer six side in the interior hexagonal recess being formed on connecting element 13a and 13b and the end 5a and 5b that are formed in handle 5
Shape protrusion.It should be understood that this convex-concave portion can be other any suitable at such as triangle, quadrangle, ellipse etc.
Shape；It convex-concave portion can also be at other any suitable forms.In shown preferred embodiment, connecting element 13a and 13b and tight
Gu element 9a and 9b are formed separately, it should be understood that connecting element 13a and tightening member 9a and connecting element 13b with
Tightening member 9b may be integrally formed.Certainly, connecting element 13a and tightening member 9a and connecting element 13b and fastening member
It is also feasible that part 9b, which is integrally formed with handle 5,.It will also be appreciated that omitting connecting element 13a and 13b and to fasten
The end 5a and 5b of element 9a and 9b and handle 5 are directly connected to be also feasible.In this case, tightening member 9a and
Intermeshing convex-concave portion is respectively formed on the surface that the end 5a and 5b of 9b and handle 5 are interconnected.Certainly, tightening member
It is also feasible that 9a and tightening member 9b, which is integrally formed with handle 5,.Bindiny mechanism 7 further includes across the end of handle 5
5a, connecting element 13a, tightening member 9a, clamping band 3 are located at part between tightening member 9a and 9b, tightening member 9b, connection
The bolt 15 of the end 5b of element 13b and handle 5, and can be tightened on bolt 15 so that these elements tighten together
Threaded knob 17.
After auxiliary handle 1 installs, the main part 3c of clamping band 3 is generally round.Clamping band 3 in order to prevent
Main part 3c is exceedingly rotated relative to handle 5, and the protruding portion 9e with arcwall face 9c, 9d can be set in tightening member 9a and 9b
And 9f.The arcwall face 9d of the arcwall face 9c and protruding portion 9f of protruding portion 9e bear against the main part 3c of clamping band 3, with limitation
The rotation of the main part 3c of clamping band 3.
According to the present invention, it is provided in the groove 11a, 11b on tightening member 9a and 9b positioned at the free end of clamping band 3
3a and 3b and groove 11a, the elastic element between the wall of 11b.In first exemplary embodiment shown in Fig. 1-3, elastic element
For be arranged in clamping band 3 free end 3a and 3b two sides and groove 11a, 8 disc spring groups between the wall of 11b.Specifically, exist
Two the first disc spring group 19a are respectively set in the two sides of the free end 3a of clamping band 3 in groove 11a on tightening member 9a, and
Two the second disc spring group 19b are respectively set in the two sides of the free end 3b of clamping band 3 in the groove 11b on tightening member 9b.For
Prevent disc spring from falling off from groove 11a, 11b, it can be using being screwed into the screw 21a and 21b of disc spring group and clamping band for first
Disc spring group 19a and the second 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 includes four disc springs stacked, as shown in Figure 6.
It should be understood that according to groove 11a, the size of 11b, in the groove 11a on tightening member 9a clamping band 3 from
By holding the two sides of 3a that can also be respectively arranged with one or more than two first disc spring group 19a.Equally, on tightening member 9b
Groove 11b in the two sides of free end 3b of clamping band 3 can also be respectively arranged with one or more than two second disc spring group
19b.In addition, the number for the disc spring for including in each disc spring group can be more than four or less than four (for example, an only dish
Spring).In addition, being only also feasible in the side of the free end 3a and 3b of clamping band 3 setting disc spring group.
Fig. 7 be according to the present invention the hand held electric tool with Fig. 4 of the second exemplary embodiment it is similar cross section signal
Figure, Fig. 8 are the partial enlarged views for being enclosed the part A come in Fig. 7 by circle.The second exemplary embodiment of the present invention shown in Fig. 7 and 8
It is substantially the same with the first exemplary embodiment of the present invention, thus omits the repeated description to same section.This hair shown in Fig. 7 and 8
The hand held electric tool of the hand held electric tool and first exemplary embodiment of the present invention of bright second exemplary embodiment
Difference is, with the elastic element of such as rubber block 23a and 23b instead of the first disc spring group 19a and the second disc spring group 19b.Rubber
Blob of viscose 23a and 23b are separately positioned in the groove 11a, 11b on tightening member 9a and 9b, and the free end 3a and 3b of clamping band 3 are then
It is respectively inserted into rubber block 23a and 23b.
It should be understood that other than using rubber block 23a and 23b substitution disc spring group, it can also be using leaf spring, leaf spring very
Disc spring group is substituted to helical spring.
When hand held electric tool according to the present invention operation when, tool heads and work face contact generate great vibrations by
Body is transmitted to auxiliary handle, initial bit of the auxiliary handle with body along the axial direction of tool heads relative to auxiliary handle
It sets and swings back and forth, to apply the effect of the radial direction of the main part along clamping band on the wall of the groove of tightening member
Power.The work that squeezes and absorb radial direction of the elastic element of such as disc spring group or rubber block by the active force of radial direction
Firmly, to reduce the vibration for being transmitted to operator significantly, operator is made to feel relatively comfortable, and can avoid to operator's
Hand damages.
Above in conjunction with specific embodiments to the present invention have been described in detail.Obviously, above description and show in the accompanying drawings
Embodiment out should be construed as illustratively, but not to limit the present invention.For those skilled in the art
Speech, can carry out various variations or modifications to it without departing from the spirit of the invention, these variations or modifications are not
It departs from the scope of the present invention.
Claims (17)
1. a kind of auxiliary handle (1), comprising:
For installation into the clamping band (3) on the body of hand held electric tool；
The handle (5) grasped by operator；And
Bindiny mechanism (7) for being connected to the clamping band (3) on the handle (5)；
Wherein, the bindiny mechanism (7) includes:
A pair is respectively used to fix the tightening member (9a, 9b) of the free end (3a, 3b) of the clamping band (3), the clamping band
(3) free end (3a, 3b) is located at the bending of the part between a pair of fastening (9a, 9b), institute relative to the clamping band (3)
State the free end (3a, 3b) that the bending for being respectively used to receive the clamping band (3) is formed on each of tightening member (9a, 9b)
Groove (11a, 11b)；
One (9a), the clamping band (3) in an end (5a) of the handle (5), the tightening member are located at
Part between the tightening member (9a, 9b), another (9b) in the tightening member and the handle (5) the other end
The bolt (15) in portion (5b)；And
The threaded knob (17) that can be tightened on the bolt (15)；
It is characterized in that, be provided in the groove (11a, 11b) free end (3a, 3b) positioned at the clamping band (3) with
Elastic element between the wall of the groove (11a, 11b).
2. auxiliary handle according to claim 1, which is characterized in that the elastic element is to be arranged in the clamping band
(3) disc spring group between the two sides of free end (3a, 3b) and the wall of the groove (11a, 11b).
3. auxiliary handle according to claim 2, which is characterized in that described recessed on a tightening member (9a)
At least first disc spring group (19a), Yi Ji is respectively set in the two sides of one free end (3a) of clamping band described in slot (3)
The two sides of another free end (3b) of clamping band (3) described in the groove on another tightening member (9b) are also respectively set
At least one second disc spring group (19b).
4. auxiliary handle according to claim 2, which is characterized in that each disc spring group includes at least one disc spring.
5. auxiliary handle according to claim 2, which is characterized in that each disc spring group includes four stacked
Disc spring.
6. auxiliary handle according to claim 2, which is characterized in that the disc spring group is fixed on described recessed by screw
In slot (11a, 11b).
7. auxiliary handle according to claim 1, which is characterized in that the elastic element is to be arranged in the groove
The rubber block is inserted into the free end (3a, 3b) of rubber block (23a, 23b) in (11a, 11b), the clamping band (3) respectively
In (23a, 23b).
8. auxiliary handle according to claim 1, which is characterized in that the elastic element is to be arranged in the clamping band
(3) leaf spring, leaf spring or helical spring between the two sides of free end (3a, 3b) and the wall of the groove (11a, 11b).
9. auxiliary handle according to claim 1, which is characterized in that the tightening member (9a, 9b) and the handle (5)
End (5a, 5b) be directly connected to, what the end (5a, 5b) of the tightening member (9a, 9b) and the handle (5) was interconnected
Intermeshing convex-concave portion is respectively formed on surface, to prevent them to be rotated relative to one another.
10. auxiliary handle according to claim 1, which is characterized in that one (9a) in the tightening member with it is described
One end (5a) of handle (5) is integrally formed and another (9b) and the handle (5) in the tightening member
(5b) is integrally formed for the other end.
11. auxiliary handle according to claim 1, which is characterized in that the bindiny mechanism (7) further includes positioned at described tight
Gu a pair of of connecting element (13a, 13b) between element (9a, 9b) and the end (5a, 5b) of the handle (5), the connection member
Part (13a, 13b) is used to that the end (5a, 5b) of the tightening member (9a, 9b) and the handle (5) to be connected and be prevented
Only the tightening member is rotated relative to the end of the handle, and the bolt (15) also passes through one in the connecting element
Another (13b) in (13a) and the connecting element.
12. auxiliary handle according to claim 11, which is characterized in that the connecting element (13a, 13b) and described tight
Gu on the surface that element (9a, 9b) the is interconnected and end of the connecting element (13a, 13b) and the handle (5)
Intermeshing convex-concave portion is respectively formed on the surface that (5a, 5b) is interconnected, to prevent them to be rotated relative to one another.
13. auxiliary handle according to claim 11, which is characterized in that one (13a) and institute in the connecting element
It states in tightening member corresponding one (9a) and is integrally formed, another (13b) in the connecting element and fastening member
Corresponding another (9b) is integrally formed and the end of the connecting element (13a, 13b) and the handle (5) in part
Intermeshing convex-concave portion is respectively formed on the surface that (5a, 5b) is interconnected, to prevent them to be rotated relative to one another.
14. auxiliary handle according to claim 11, which is characterized in that one (13a) in the connecting element, described
An end (5a) of corresponding one (9a) and the handle (5) is integrally formed in tightening member, the connecting element
In another (13b), in the tightening member corresponding another (9b) and the handle (5) the other end (5b) one
Formed to body.
15. auxiliary handle according to claim 1, which is characterized in that the tightening member (9a, 9b) is provided with arc
The protruding portion (9e, 9f) in shape face (9c, 9d) is respectively used to the main part (3c) against the clamping band (3).
16. a kind of hand held electric tool, which is characterized in that the hand held electric tool includes any claim institute as above
The auxiliary handle stated.
17. hand held electric tool according to claim 16, which is characterized in that the hand held electric tool is electricity
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 |
|---|---|
| CN105345753A CN105345753A (en) | 2016-02-24 |
| CN105345753B true CN105345753B (en) | 2018-12-28 |
Family
ID=55321886
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105345753B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3756833A1 (en) * | 2019-06-26 | 2020-12-30 | Hilti Aktiengesellschaft | Side handle for an electric hand tool |
| EP4313494A1 (en) | 2021-03-25 | 2024-02-07 | Milwaukee Electric Tool Corporation | Side handle for power tool |
Family Cites Families (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 |
| DE10347945A1 (en) * | 2003-10-15 | 2005-05-19 | Robert Bosch Gmbh | Additional handle |
| DE102006055516A1 (en) * | 2006-11-24 | 2008-05-29 | Robert Bosch Gmbh | Additional handle for a hand tool with quick adjustment by two threads |
| JP5000353B2 (en) * | 2007-03-29 | 2012-08-15 | 株式会社マキタ | Hand tool handle |
| DE102009000595A1 (en) * | 2008-02-15 | 2009-08-20 | Minda Schenk Plastic Solutions Gmbh | Vibration-decoupled handle |
-
2014
- 2014-08-19 CN CN201410407396.1A patent/CN105345753B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105345753A (en) | 2016-02-24 |
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