GB2124536A - A hand machine tool provided with an auxiliary handle - Google Patents
A hand machine tool provided with an auxiliary handle Download PDFInfo
- Publication number
- GB2124536A GB2124536A GB08312512A GB8312512A GB2124536A GB 2124536 A GB2124536 A GB 2124536A GB 08312512 A GB08312512 A GB 08312512A GB 8312512 A GB8312512 A GB 8312512A GB 2124536 A GB2124536 A GB 2124536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine tool
- hand machine
- tool according
- arm
- auxiliary handle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/04—Handles; Handle mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
- B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
- B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The hand machine tool (2), which is used selectively, for chiselling, hammering, drilling and/or percussion drilling, has a housing (3) to one end of which is fixed a main handle (5). An auxiliary handle (6) can be screwed at different orientations to an arm which is connected to the tool (2) for adjustment through a lockable hinge (8). The hinge (8) is arranged substantially half way along the tool (2). The length of the arm (7) is substantially one third to one half of the length of the tool (2). Thus, the auxiliary handle (6) can be orientated at different distances both from the main handle (5) and from the longitudinal axis (14) of the tool (2) so that, for chiselling, it can be set substantially near to the housing (3) of the tool in its longitudinal direction and in a direction favourable to gripping and during a drilling or percussion drilling operation it can be set at the greatest possible distance from the longitudinal axis of the tool (2). <IMAGE>
Description
SPECIFICATION
A hand machine tool provided with an auxiliary handle
State of the Art
The invention originates from a hand machine tool according to the preamble to the main claim.
From United States Specification 4 276 675 an electrically driven hand machine tool is known which has a housing, a cylindrical housing neck, a tool holder connected to the cylindrical housing neck, a main handle arranged on the housing opposite to the tool holder and an auxiliary handle.
The hand machine tool has a percussive mechanism which acts on a tool inserted in the tool holder such as a chisel or percussive drill. The auxiliary handle is mounted on an eye to which it can be clamped. A slotted ring which has an internal hole gripping around the cylindrical housing neck and an external spherical surface, is located inside the clamping eye.
The auxiliary handle is pivotable about the centre of gravity of the spherical surface and can be pivoted thereby about the longitudinal axis of the machine and can also be adjusted within an angular range, relatively to a reference plane arranged at right angles to the longitudinal axis of the machine. Thus, the longitudinal axis of the handle, for example, and a theoretical reference line which proceeds from the point of a tool inserted in the tool holder and intersects the handle at substantially half way along its length, can cross substantially perpendicularly. By displacing the ring in a longitudinal direction of the housing neck and by pivoting the auxiliary handle, the distance of the latter from the main handle may be varied.However, this possibility of variation is so smali that the alignments of the auxiliary handle resulting therefrom only permit convenient operation with the hand machine tool when the latter is aligned substantially in the horizontal direction and substantially from the stomach to the head height of the user. This handle arrangement is unsuitable for operating with a hand machine tool aligned substantially upright, especially when the user must bend over the hand machine tool.
One machine available on the market and designed for chiselling and percussive drilling, also has a housing neck and an auxiliary handle which can be clamped to the housing neck by means of a clamping eye. The clamping eye only permits pivoting about the housing neck. A fork-shaped arm, the length of which amounts to substantially one fifth of the distance between the clamping eye and the main handle, is located between the clamping eye and the auxiliary handle. The distance of the auxiliary handle from the longitudinal axis of the machine is short. Thus, the auxiliary handle is indeed well suited to chiselling; however, during percussive drilling, the lever arm formed by the distance between the longitudinal axis of the machine and the auxiliary handle is unsuitable for sufficiently securing the machine against twisting in the case where the drill seizes.
For this reason, this hand machine tool is also provided with a second auxiliary handle which is made rod-like and can be screwed into the housing of the machine laterally. As soon as this second auxiliary handle has been screwed in, the first auxiliary handle is no longer usable because the second handle prevents gripping of the first handle. If, after its use, the rod-like auxiliary handle is unscrewed, then it is easily lost, particularly on building sites, with the result that, with a fresh percussive drilling using only the first auxiliary handle, the machine cannot be secured sufficiently against twisting. Thus, the problem is posed of so designing a hand tool machine provided with an auxiliary handle that it can be used comfortably for chiselling, percussive drilling and even ordinary drilling without adding and removing handles.The distance between the main handle and the auxiliary handle should be variable within a largest possible range, especially with large and therefore heavy hand machine tools.
Advantages of the Invention
The hand tool machine in accordance with the invention comprising the characterising features of the main claim has the advantage that, for chiselling the distance between the main handle and the auxiliary handle is selectable over a range which corresponds substantially to the distance between the tool receiver and the main handle.
For drilling or percussive drilling, the auxiliary handle can be aligned transversely with respect to the longitudinal axis of the hand machine tool whereby a long lever arm is provided for securing the machine against twisting. Thus, with a rigidly clamped drill bit, the machine can be rigidly held successfully until the machine is switched off manually, for example, after a built-in safety coupiing has responded. Moreover, by the length of the hand machine tool, is meant the length including the tool receiver and the main handle.
The characterising features of claim 2 provide an arrangement for the hinge which is robust and thus particularly suited to use on building sites.
The further development according to the characterising feature of claim 3 permits an extremely fine adjustability whilst the desired robustness of the hinge is retained. The further development according to the characterising feature of claim 4 has the advantage that the auxiliary handle is held resiliently with respect to the hand machine tool if required. Thus, the hinge is usable for damping shocks during the percussive mode of operation. The characterising features of claims 5, 6 and 7 provide constructional arrangements which are particularly cheap to produce. Further advantageous arrangements become apparent from the subsequent claims. Thus, for example, during optional adjustment of the arm of the auxiliary handle, the characterising features of claims 8 and 9 enable the handle to be adjusted parallel to itself.
The characterising features of claims 10 and 11 enable constructions already provided to be converted to the machine in accordance with the invention in a simple manner. This can be achieved, for example, by welding one or two eyes to the housing of the hand machine tool. By the measures according to claims 12, 13 and 14 it is possible to align the auxiliary handle at least substantially radially of the longitudinal axis of the hand machine tool which is known to be very advantageous when drilling or percussive drilling.
The further development according to claim 1 5 facilitates working in working locations which are accessible with difficulty.
Drawing
Two embodiments of the invention are illustrated in the drawings. Figure 1 shows the first embodiment according to the invention in plan view, Figure 2 shows the hand machine tool according to Figure 1 in side view, Figure 3 is a detail of the machine according to Figure 1 in side view partly cut away and Figure 4 shows the second embodiment in side view partly cut away.
Description of the Embodiments
The hand machine tool 2 has a housing 3, a tool holder 4 projecting from the housing 3, a main handle 5 at the end of the housing 3 opposite to the tool holder 4, an auxiliary handle 6, an arm 7 and a lockable hinge 8.
Internally, the hand machine tool is constructed in known manner, that is to say, it contains its driving motor, transmission components which act selectively on a drilling tool which can be inserted in the tool holder 4 and a percussion mechanism driveable by the motor which can be formed, for example, as a so-called air cushion percussion mechanism. The driving motor can be switch on by a switch 9 which is let into the main handle 5.
The supply to the motor takes place through a
connecting line 10 which passes through the
handle 5 into the housing 3.
On the left hand side, an eye 11 is welded to
the housing 3 of the hand machine tool 2. A
shaped part 12 is welded into the eye 1 This is
made rotationally symmetrical and at its free end
carries teeth 1 3. These teeth are located above
the eye 11 as is illustrated in Figure 2. The
longitudinal axis of the shaped part 1 2 crosses the
longitudinal axis 14 of the hand machine tool at a
distance and lies parallel to a plane which includes
the longitudinal axis 1 4 and forms a plane of
symmetry for the main handle 5. At the same
time, the longitudinal axis of the shaped part 1 2 forms the pivot axis of the lockable hinge 8.The
arm 7 has an eye 1 6 which is aligned coaxially
with respect to the pivot axis 1 5 and has teeth 1 7, for example pointed, directed towards the first
teeth 13. The eye 1 6 has a passage 18 passing through it and a cylindrical recess 19 which is
located at the end of the eye 1 6 opposite to the teeth 1 7. A clamping screw 20 which has a screw thread 21 at its free end extends through the
recess 19, the teeth 17, 13 into the shaped part
12. The screw thread 21 on the clamping screw
20 projects through an internal screw thread 22 arranged at the lower end of the shaped part 12. A so-called elastic stop nut 24 is screwed onto the free end 23 of the screw thread 21. A space remains between the elastic stop nut 24 and the shaped part 12.Opposite to the screw thread 21, the clamping screw 20 has a flange 25 which penetrates into the recess 1 9 and a head 26 which extends upwardly from the flange 25. A lock 27 extending from the head 26 is fixed to the latter. The lock 27 serves for rotating the clamping screw 20. Plate springs 29 are inserted between the flange 25 and an end surface 28 which bounds the recess 1 9 towards the hole 1 8. The plate springs 29 are not only at radial distances from the periphery of the recess 1 9 but also from the diameter of the clamping screw 20. In
Figure 3, the plate springs 29 are illustrated in the flat compressed condition.This condition is achieved when the clamping screw 20 is screwed tightly towards the internal screw thread 22 by means of the lock 27 after the teeth 1 3 and 1 7 have been aligned in interengagement. This tightening of the clamping screw 20 provides a non-resilient positive connection between the teeth 13 and 17. If the clamping screw 20 is unscrewed to some extent in a loosening direction, then the plate springs take on the shape of conical discs. When torsional forces act between the teeth 1 3 and 1 7 and which exceed a predetermined value, then the teeth 13 and 1 7 begin to rotate elastically relatively to one another against the pre-tensioning force of the plate springs.At the same time, a twisting of the eye 1 6 with respect to the shaped part 12 takes place.
When, in the present example, the spacing of the teeth amounts to 200, the pre-tensioning of the plate springs 29 can be so selected that, when operating the hand machine tool in practice for example, an elastic twisting of the eye 1 6 with respect to the eye 11 occurs in the order of magnitude of 100. In that way, the hinge 8 can be used as a damper between the hand machine tool 2 and the auxiliary handle 6.
Two threaded holes 30 and 31 are bored at one free end of the arm 7 remote from the clamping screw 20. The threaded hole 30 is aligned parallel to the passage 1 8. The threaded hole 31 extends in the longitudinal direction of the arm 7. The auxiliary handle 6 has a threaded pin 32 which is aligned in the longitudinal axis of the auxiliary handle 6.
The orientation of the arm 7 and of the auxiliary handle 6 parallel to the pivot axis 1 5 and
illustrated in Figure 2 by means of continuous
lines is preferred when chiselling or chasing operations are carried out by means of the hand
machine tool 2 in a substantially horizontal operating mode and with the alignment of the
hand machine tool 2 at substantially the hip height of the user. With a downwardly directed tool, a
pivot position for the arm 7 is preferred in which the angle between the arm 7 and a theoretical line
between the pivot axis 1 5 and the main handle 5
amounts to an angle of less than 900, for example
400.If drilling operations are to be carried out then, to obtain a lever arm as large as possible between the auxiliary handle 6 and the longitudinal axis 14 of the hand machine tool, the angle between the said longitudinal axis 14 and the arm 7 is to be preferably selected at 900 and the auxiliary handle 6 is to be screwed into the threaded hole 31 so that the auxiliary handle 6 forms an extension of the arm 7. When drilling at breast level of the user, then the arm 7 and the auxiliary handle 6 are used substantially in horizontal alignment. When drilling at hip height, the arm 7 and the auxiliary handle 6 are directed upwards. By loosening the clamping screw 20, the arm 7 and the auxiliary handle 6 may be pivoted closely against the hand machine tool 2 whereupon the latter may be incorporated in a transporting case of substantially normal size.For transporting the hand machine tool on a building site without the assistance of a case, the auxiliary handle 6 can be screwed into the threaded hole 30 and the arm 7 be so adjusted that the auxiliary handle 6 is aligned transversely with respect to the longitudinal axis of the machine from its centre of gravity or is aligned from the common centre of gravity of the machine and the tool.
In the hand machine tool illustrated in Figures 1 and 2 the pivot axis 1 5 is located substantially half way along the hand machine tool. The length of the arm 7 is selected approximately of the order of one third to one half of the length of the hand machine tool 2. In that way, the left hand of the user, for example, is at a predetermined safe distance from the tool receiver 4 or its working location when the auxiliary handle 6 is at its shortest possible distance from the tool receiver 4, as illustrated in Figure 2. As is further apparent from Figure 2, the choice of this length of the arm 7 is also an advantage because no extension of the transporting case is required to accommodate the arm 7 and the auxiliary handle screwed into the threaded hole 31 to form an extension.
Instead of the illustrated pointed teeth 1 3 and 1 7, detent means which have other forms of teeth can also be used. Furthermore, it is also possible to incorporate a cushion ring of rubber or similar material or corrugated spring rings instead of the plate springs 29. Furthermore, the arrangement of the eye 11 is not limited to the left hand side of the hand machine tool 2. Thus, for left handed people, a corresponding eye could be arranged on the right hand side of the machine. A further development possibility within the scope of the invention, consists in arranging the teeth 13 on the centre of the top of the hand machine tool. In that case, the arm 7 and the auxiliary handle 6 are usable both for right handed and also for left handed people.Also, two ordinary hexagonal nuts which are clamped against one another can be used to secure the clamping screw against loss instead of the so-called elastic stop nut 24. Even standard axle securing elements such as split pins, wire eyes or safety rings can also be used instead of nuts. The lock 27 can also be arranged for tilting or removal relatively to the head 26 so that the hand machine tool may also be used on working locations of poor accessibility. When a certain damping torsional elasticity between the teeth 13 and 1 7 is permissible or even desirable, such a conversion possibility for the lock can be dispensed with, as in the illustrated example, because the axle elasticity of the plate springs 29 facilitates pivoting the lock away from a possible obstruction, such as for example a wall.For this purpose, a plurality of plate springs 29 are preferably arranged one behind the other so that their total spring path is greater than one single plate spring.
The second embodiment differs from that of the first by the fact that the clamping screw 20a is made longer, that the flange 25 and the head 26 are arranged so far downwards that the lock 27 is rotatable beneath the hand machine tool 2, that the screw thread on the clamping screw 20a projects into the recess 19a, that, a threaded hole 1 8a instead of a passage extends from the said recess towards the teeth 17a, that the elastic stop nut 24 serving as a security against loss of the clamping screw 20a is incorporated within the recess 1 9a and is rotated on the screw thread 21 of the clamping screw 20a, that a shaped part 1 2a provided with the teeth 1 3 only has a hole 1 2b passing through it, that a second welded eye 11 b forms an extension of an eye 11 a, which is welded to the hand machine tool 2, receiving the shaped part 12a, that, at its lower end, a nipple 11 c is provided and that the nipple 11 c serves as a bearing for the clamping screw 20a and the plate springs 29 and surrounds a part of the length of the flange 25. The recess 1 9a is incorporated in an eye 1 6a of the arm 7. The second embodiment has the advantage that the lock 27 is very accessible for servicing and because it is arranged on the underside of the machine which projects in any event, guiding the top of the hand machine tool in a wall nitch or near a ceiling or a floor is not hindered.
Claims (14)
1. A hand machine tool, especially a hammer drill comprising a main handle arranged at the other end of its housing with respect to its tool receiver, an auxiliary handle arranged on an arm which is pivotally adjustable relatively to the hand machine tool through a lockable hinge, characterised in that, the hinge (8) is arranged at substantially half way along the hand machine tool (2) and permits a pivot angle of more than 300 relatively to a plane normal to the longitudinal axis of the hand machine tool (2) to be set and that the arm (7) has a length of substantially a third to a half of the length of the hand machine tool (2).
2. A hand machine tool according to claim 1, characterised in that, a first set of end teeth (13) is arranged on the housing (3) of the hammer drill (2) coaxially with respect to the axis (1 5) of the hinge (8) and against which can be clamped a second set of end teeth (17) arranged for rotation with the arm (7).
3. A hand machine tool according to claim 2, characterised in that, the end teeth (13, 17) are spaced at substantially 200.
4. A hand machine tool according to claim 2 or 3, characterised in that, an elastically acting clamping device is provided for clamping the end teeth (13, 17) against one another.
5. A hand machine tool according to claim 4, characterised in that, the clamping device consists of a clamping screw (20; 20a) engaging through both end teeth (13, 17) and at least one compression spring (29) surrounding the clamping screw.
6. A hand machine tool according to claim 5, characterised in that, the compression spring is formed as plate springs (29) and is accommodated within a recess (19) arranged in an eye (16) of the arm (7) and aligned coaxially with respect to the end teeth (13, 17) and that the clamping screw (20) is provided with a flange (25) directed against the spring and a head (26) connected to a lock (27).
7. A hand machine tool according to claim 5, characterised in that, the compression spring is formed as plate springs (29) and that the clamping screw (20a) has a flange (25) directed against the compression spring and a head (26) provided with a lock (27) rotatable beneath the hand machine tool (2).
8. A hand machine tool according to one of claims 2 to 7, characterised in that, the pivot axis (15) crosses the longitudinal axis (14) of the hand machine tool (2) perpendicularly.
9. A hand machine tool according to claim 8, characterised in that, the pivot axis (15) is aligned parallel to a longitudinal plane in which lies the longitudinal axis (14) of the hand machine tool (2) and its main handle (5).
10. A hand machine tool according to claim 9, characterised in that, the pivot axis (15) is spaced from the said longitudinal plane.
11. A hand machine tool according to claim 10, characterised in that, the pivot axis (1 5) extends in an eye (11; 11 a, 11 b) which is arranged on the housing (3) of the hand machine tool (2) on the left hand side and/or the right hand side.
12. A hand machine tool according to one of claims 1 to 11, characterised in that, the auxiliary handle (6) can be fixed to the arm (7) in different angular positions relatively to the arm.
13. A hand machine tool according to claim 12, characterised in that, a plurality of fixing holes (30, 31) for the auxiliary handle (6) are arranged at the free end of the arm (7) wherein one of the holes (30) lies parallel to the pivot axis (15) and the other hole or holes (31) lies or lie in a reference plane aligned normal to the clamping screw (20).
14. A hand machine tool according to claim 13, characterised in that, a hole (31) lies in the longitudinal direction of the arm (7).
1 5. A hand machine tool according to one of claims 6 to 14, characterised in that, the lock (27) is fixed for adjustment relatively to the head (26) of the clamping screw (20).
1 6. A hand machine tool substantially as herein described with reference to Figures 1 to 3 or
Figure 4 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823229183 DE3229183A1 (en) | 1982-08-05 | 1982-08-05 | HAND TOOLS WITH AUXILIARY HANDLE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8312512D0 GB8312512D0 (en) | 1983-06-08 |
| GB2124536A true GB2124536A (en) | 1984-02-22 |
| GB2124536B GB2124536B (en) | 1986-01-22 |
Family
ID=6170157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08312512A Expired GB2124536B (en) | 1982-08-05 | 1983-05-06 | A hand machine tool provided with an auxiliary handle |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH660150A5 (en) |
| DE (1) | DE3229183A1 (en) |
| GB (1) | GB2124536B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2225280A (en) * | 1988-09-02 | 1990-05-30 | Hitachi Koki Kk | Portable electric rooter |
| US6155916A (en) * | 1997-10-14 | 2000-12-05 | C. & E. Fein Gmbh & Co. | Power-driven hand tool |
| US6484361B1 (en) * | 1998-03-30 | 2002-11-26 | Wacker-Werke Gmbh & Co. Kg | Handle for a drill- and/or chisel hammer |
| EP1541305A1 (en) * | 2003-12-09 | 2005-06-15 | Techtronic Industries Co., Ltd. | Ergonomic miter saw handle |
| WO2006056966A1 (en) * | 2004-11-29 | 2006-06-01 | Steen Mandsfelt Eriksen | Angle grinder |
| GB2444156A (en) * | 2006-11-24 | 2008-05-28 | Bosch Gmbh Robert | An auxiliary handle for a hand held power tool with quick adjustment by a bayonet coupling |
| GB2444160A (en) * | 2006-11-24 | 2008-05-28 | Bosch Gmbh Robert | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| US7392568B2 (en) * | 2004-04-01 | 2008-07-01 | Hilt Aktiengesellschaft | Hand-held power tool with an auxiliary handle |
| EP1997592A1 (en) * | 2005-03-31 | 2008-12-03 | Makita Corporation | Handle |
| EP2020279A1 (en) | 2007-07-31 | 2009-02-04 | HILTI Aktiengesellschaft | Momentum lever |
| US20100064480A1 (en) * | 2008-09-15 | 2010-03-18 | Hilti Aktiengesellschaft | Auxiliary handle for hand-held power tool |
| ES2347396A1 (en) * | 2006-11-24 | 2010-10-28 | Robert Bsoch Gmbh | Auxiliary handle for a manual tool with a fast adjustment for overloading (Machine-translation by Google Translate, not legally binding) |
| US8186018B2 (en) * | 2008-09-15 | 2012-05-29 | Hilti Aktiengesellschaft | Auxiliary handle for hand-held power tool |
| GB2489356A (en) * | 2008-07-21 | 2012-09-26 | Bosch Gmbh Robert | Pivoting auxiliary handle for an angle grinding machine |
| US20230061232A1 (en) * | 2021-08-26 | 2023-03-02 | Makita Corporation | Side handle for power tool and power tool |
| US20230064399A1 (en) * | 2021-08-26 | 2023-03-02 | Makita Corporation | Power tool |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3826212A1 (en) * | 1988-08-02 | 1990-02-08 | Bosch Gmbh Robert | Electric hand tool |
| DE19754429C2 (en) * | 1997-12-08 | 2002-11-21 | Eisenblaetter Gerd Gmbh | Manually manageable processing device with an extension unit |
| FR2790215B1 (en) * | 1999-02-25 | 2001-04-06 | Pierre Bourgogne | SAFETY EQUIPMENT FOR ROTATING ELECTRO-PORTABLE MACHINES AND IN PARTICULAR DRILLS, WITH OR WITHOUT PERCUSSION SYSTEM |
| DE10162633B4 (en) * | 2001-12-20 | 2012-12-06 | Hilti Aktiengesellschaft | Stud gun |
| DE10236135B4 (en) * | 2002-08-07 | 2009-06-10 | Aeg Electric Tools Gmbh | Portable, hand-held tool |
| DE102005059180A1 (en) * | 2005-12-12 | 2007-06-14 | Robert Bosch Gmbh | Hand tool with a drive train and a decoupling unit |
| DE102008043379A1 (en) | 2008-10-31 | 2010-05-06 | Hilti Aktiengesellschaft | Auxiliary handle e.g. side handle, for e.g. drill machine, has fixing section for fixing handle, and gripping element with gripping sections connected with each other at ends by pivoting joints and pivoted relative to each other |
| CN102601419B (en) * | 2012-03-07 | 2013-09-25 | 金华职业技术学院 | Electric impact drill with 360-degree rotary working head |
| EP4313456A1 (en) | 2021-04-01 | 2024-02-07 | Milwaukee Electric Tool Corporation | Integrated dust extractor and power tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB389464A (en) * | 1931-09-05 | 1933-03-06 | Enoch Skelding | Improvements in, or relating to, hand-operated boring and similar appliances |
| GB747641A (en) * | 1952-11-06 | 1956-04-11 | Wacker Hermann | Improvements in or relating to percussive tools operated by an internal combustion engine and manipulated by hand |
| GB872906A (en) * | 1959-03-31 | 1961-07-12 | Lushington Tool & Gauge Compan | Improvements in or relating to hand punches, insertion or like tools |
| GB984458A (en) * | 1961-02-13 | 1965-02-24 | Phillips Drill Co | Combined handle and ejector apparatus for percussive drill |
| GB2031484A (en) * | 1978-08-24 | 1980-04-23 | Pattisson & Co Ltd H | Device for cutting a cylindrical hole in the ground |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2929073A1 (en) * | 1979-07-18 | 1981-02-05 | Hilti Ag | HAND DEVICE FOR DRIVING TOOLS OR FASTENING ELEMENTS IN WORKPIECES |
| US4276675A (en) * | 1980-02-07 | 1981-07-07 | Black & Decker Inc. | Auxiliary handle for a power tool |
-
1982
- 1982-08-05 DE DE19823229183 patent/DE3229183A1/en active Granted
-
1983
- 1983-05-06 GB GB08312512A patent/GB2124536B/en not_active Expired
- 1983-07-11 CH CH379783A patent/CH660150A5/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB389464A (en) * | 1931-09-05 | 1933-03-06 | Enoch Skelding | Improvements in, or relating to, hand-operated boring and similar appliances |
| GB747641A (en) * | 1952-11-06 | 1956-04-11 | Wacker Hermann | Improvements in or relating to percussive tools operated by an internal combustion engine and manipulated by hand |
| GB872906A (en) * | 1959-03-31 | 1961-07-12 | Lushington Tool & Gauge Compan | Improvements in or relating to hand punches, insertion or like tools |
| GB984458A (en) * | 1961-02-13 | 1965-02-24 | Phillips Drill Co | Combined handle and ejector apparatus for percussive drill |
| GB2031484A (en) * | 1978-08-24 | 1980-04-23 | Pattisson & Co Ltd H | Device for cutting a cylindrical hole in the ground |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2225280A (en) * | 1988-09-02 | 1990-05-30 | Hitachi Koki Kk | Portable electric rooter |
| US4938642A (en) * | 1988-09-02 | 1990-07-03 | Hitachi Koki Company, Limited | Portable electric router |
| GB2225280B (en) * | 1988-09-02 | 1992-09-02 | Hitachi Koki Kk | Portable electric router |
| US6155916A (en) * | 1997-10-14 | 2000-12-05 | C. & E. Fein Gmbh & Co. | Power-driven hand tool |
| US6484361B1 (en) * | 1998-03-30 | 2002-11-26 | Wacker-Werke Gmbh & Co. Kg | Handle for a drill- and/or chisel hammer |
| EP1541305A1 (en) * | 2003-12-09 | 2005-06-15 | Techtronic Industries Co., Ltd. | Ergonomic miter saw handle |
| US7392568B2 (en) * | 2004-04-01 | 2008-07-01 | Hilt Aktiengesellschaft | Hand-held power tool with an auxiliary handle |
| WO2006056966A1 (en) * | 2004-11-29 | 2006-06-01 | Steen Mandsfelt Eriksen | Angle grinder |
| EP1997592A1 (en) * | 2005-03-31 | 2008-12-03 | Makita Corporation | Handle |
| GB2444156A (en) * | 2006-11-24 | 2008-05-28 | Bosch Gmbh Robert | An auxiliary handle for a hand held power tool with quick adjustment by a bayonet coupling |
| GB2444160A (en) * | 2006-11-24 | 2008-05-28 | Bosch Gmbh Robert | Auxiliary handle for a hand held machine tool with rapid adjustment by means of two threads |
| GB2444156B (en) * | 2006-11-24 | 2009-12-16 | Bosch Gmbh Robert | Auxiliary handle for a hand-held power tool with quick adjustment by a bayonet coupling |
| ES2347396A1 (en) * | 2006-11-24 | 2010-10-28 | Robert Bsoch Gmbh | Auxiliary handle for a manual tool with a fast adjustment for overloading (Machine-translation by Google Translate, not legally binding) |
| GB2444160B (en) * | 2006-11-24 | 2009-11-18 | Bosch Gmbh Robert | Supplementary handle for a hand-held tool, with rapid adjustment by means of two threads |
| DE102007000417A1 (en) | 2007-07-31 | 2009-02-05 | Hilti Aktiengesellschaft | moment arm |
| EP2020279A1 (en) | 2007-07-31 | 2009-02-04 | HILTI Aktiengesellschaft | Momentum lever |
| GB2489356A (en) * | 2008-07-21 | 2012-09-26 | Bosch Gmbh Robert | Pivoting auxiliary handle for an angle grinding machine |
| GB2489356B (en) * | 2008-07-21 | 2013-02-20 | Bosch Gmbh Robert | System having an angle grinding machine and an auxiliary handle |
| US20100064480A1 (en) * | 2008-09-15 | 2010-03-18 | Hilti Aktiengesellschaft | Auxiliary handle for hand-held power tool |
| US8166614B2 (en) * | 2008-09-15 | 2012-05-01 | Hilti Aktiengesellschaft | Auxiliary handle for hand-held power tool |
| US8186018B2 (en) * | 2008-09-15 | 2012-05-29 | Hilti Aktiengesellschaft | Auxiliary handle for hand-held power tool |
| US20230061232A1 (en) * | 2021-08-26 | 2023-03-02 | Makita Corporation | Side handle for power tool and power tool |
| US20230064399A1 (en) * | 2021-08-26 | 2023-03-02 | Makita Corporation | Power tool |
| US11801594B2 (en) * | 2021-08-26 | 2023-10-31 | Makita Corporation | Power tool |
| US11938612B2 (en) * | 2021-08-26 | 2024-03-26 | Makita Corporation | Side handle for power tool and power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3229183A1 (en) | 1984-02-09 |
| DE3229183C2 (en) | 1993-03-18 |
| GB8312512D0 (en) | 1983-06-08 |
| CH660150A5 (en) | 1987-03-31 |
| GB2124536B (en) | 1986-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 746 | Register noted 'licences of right' (sect. 46/1977) |
Effective date: 19950904 |
|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970506 |