GB2429425A - Hand tool machine with bearing bracket - Google Patents
Hand tool machine with bearing bracket Download PDFInfo
- Publication number
- GB2429425A GB2429425A GB0615393A GB0615393A GB2429425A GB 2429425 A GB2429425 A GB 2429425A GB 0615393 A GB0615393 A GB 0615393A GB 0615393 A GB0615393 A GB 0615393A GB 2429425 A GB2429425 A GB 2429425A
- Authority
- GB
- United Kingdom
- Prior art keywords
- basic body
- hand tool
- tool machine
- basic
- body unit
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/003—Clutches specially adapted therefor
-
- 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
- B25D17/24—Damping the reaction force
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/12—Cooling and lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
- B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
A hand tool machine comprises a bearing bracket, in particular for receiving gear elements, having a basic body unit 62. The basic body unit comprises at least one basic body 64, 66, 68 that is formed by a sheet-metal part. Preferably the basic body is formed by a deep-drawn part. The hand tool machine may be a hammer drill.
Description
Hand tool machine
Background art
The invention proceeds in particular from a hand tool machine having a bearing bracket, in particular for receiving gear elements, according to the preamble of claim 2.
A hammer drill having a motor shaft drivable by an electric motor, a drilling spindle and a gear unit is known, wherein the gear unit is provided with a bearing bracket for lead- through of the motor shaft and the drilling spindle.
Advantages of the invention The invention proceeds in particular from a hand tool machine having a bearing bracket, in particular for receiving gear elements, comprising a basic body unit.
It is proposed that the basic body unit comprises at least one basic body, which is formed by a sheet-metal part. A low manufacturing outlay and a reduced consumption of material may advantageously be achieved in that an advantageous refinement of the basic body unit may be achieved by shaping of the basic body formed by a sheet- metal part. The hand tool machine bearing bracket preferably takes the form of part of a gear unit of a hand tool machine, wherein it is provided for example for receiving rotatable and/or linearly movable and/or drivable elements, such as e.g. a motor shaft, a hammer tube, a drilling spindle, an intermediate shaft, a drive piston etc., and/or for receiving further parts, in which said elements are received and/or led through, such as e.g. a bearing, a hammer tube etc. However, the hand tool machine bearing bracket may moreover take the form of part of a further unit of the hand tool machine, such as e.g. a motor unit, and/or be designed as a fastening flange between two units of the hand tool machine, such as e.g. between a motor unit and a gear unit. The hand tool machine bearing bracket may additionally be used to absorb and dissipate forces emanating from gear elements and/or motor elements and/or heat emanating from gear elements and/or motor elements, this being suitable in particular for use in hand tool machines having a housing manufactured from plastics material. For this purpose, the hand tool machine bearing bracket may be disposed inside a housing of the hand tool machine, wherein it rests in an annular manner e.g. against a housing shell, or the hand tool machine bearing bracket may take the form of a housing element. In order to achieve a high bearing capacity of the basic body unit and yet allow said unit to be constructed as economically as possible, the basic body is preferably manufactured from steel.
The basic body is advantageously formed by a deep-drawn part, with the result that a low manufacturing outlay may be achieved, namely in that with a deep drawing operation the basic body may be manufactured to the finished size without any need for re-working. Alternatively and/or additionally, it is conceivable for the basic body to be produced by a bending of the sheet-metal part.
In a constructional variant, the basic body unit comprises at least two basic bodies, which are formed in each case by a sheet-metal part and fastened to one another. This allows the basic body unit to be of a particularly flexible design for receiving gear elements. The basic bodies may be fastened to one another e.g. by welding, soldering, riveting etc. In this connection, a particularly high strength of a bonding of basic bodies is achievable when the basic bodies are joined together by a penetrative joining operation, thereby allowing the machining outlay to be considerably reduced.
For receiving gear elements and/or motor elements, the basic bodies in a composite form may have in each case a receiving region. A fastening of basic bodies may however advantageously be avoided when the basic body unit comprises a basic body, which is formed by a sheet-metal part and comprises at least two receiving regions. By a "receiving region" in this context is meant in particular a region of a basic body that is formed on the basic body purposefully for receiving a gear element and/or a motor element.
A further advantageous reduction of the manufacturing outlay of the basic body unit may easily be achieved when the basic body unit comprises at least two receiving regions that are manufactured in one manufacturing step.
It is moreover proposed that the basic body unit comprises sleeve-shaped and disk-shaped basic bodies, thereby achieving a high degree of flexibility in the design of the hand tool machine bearing bracket.
Drawings Further advantages arise from the following description of drawings. In the drawings, embodiments of the invention are represented. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will advantageously also consider the features individually and combine them into meaningful further combinations.
The drawings show: Fig. 1 a hammer drill having a hand tool machine bearing bracket, Fig. 2 a basic body unit of the hand tool machine bearing bracket of Figure 1 in a sectional view, Fig. 3 two sheet-metal parts of an alternative hand tool machine bearing bracket that are joined together by a penetrative joining operation, Fig. 4 an alternative one- piece hand tool machine bearing bracket and Fig. 5 a drilling machine having an alternative hand tool machine bearing bracket.
Description of the embodiments
Figure 1 shows a hand tool machine in the form of a hammer drill 10. It comprises a motor unit 12 having a motor shaft 16 drivable by an electric motor 14, an intermediate shaft 18 drivable via a gear 20 by the motor shaft 16, and a ball bearing 22 slipped onto the intermediate shaft 18 and provided for converting a rotational movement of the intermediate shaft 18 to a reciprocating movement of a drive piston 24 in a hammer tube 26. Also shown is a hand tool machine bearing bracket, in which the hammer tube 26, the intermediate shaft 18 and the motor shaft 16 are mounted and/or via which bearing forces of the hammer tube 26, intermediate shaft 18 and motor shaft 16 are supported in a housing 28 of the hammer drill 10 that is manufactured from plastics material.
In Figure 2, the hand tool machine bearing bracket is represented in detail in a sectional view. It consists of a basic body unit 30, which comprises two sleeve-shaped basic bodies 32, 36, a substantially diskshaped basic body 34 with a moulded-on sleeve-shaped extension 37, and a purely disk-shaped basic body 38. The basic bodies 32, 34, 36 have been formed by deep drawing from a sheet-metal part, while the disk-shaped basic body 38 was manufactured by stamping out of a sheet- metal part. During assembly of the basic body unit 30, the basic bodies 32, 34, 36, 38 were fastened to one another by welding. Alternatively, however, other connections deemed meaningful by the person skilled in the art are also conceivable, such as e.g. solder joints, rivet joints, adhesive joints etc. The basic bodies 34 and 38 form groove-shaped recesses 39.1, 39.2, which are used to receive sealing elements.
Figure 3 shows a sectional view of an alternative embodiment of a basic body unit 40, of which two basic bodies 42, 44 are represented. These have been joined together by means of a penetrative joining operation. A positive connection between the basic bodies 42 and 44 produced by this method is indicated in the regions III, III'. The basic bodies 42 and 44 form recesses 45.1, 45.2, into which sealing elements may be received.
A further embodiment of a basic body unit 46 is represented in Figure 4. In this embodiment, the basic body unit 46 comprises a basic body 48, which is formed by a sheet-metal part and comprises two receiving regions 50, 52. These have been formed on the sheet-metal part by deep drawing in one manufacturing step.
Figure 5 shows a hand tool machine in the form of a drill 54 having a motor unit 56, a gear unit 58 and a tool chuck 60. The gear unit 58 has a hand tool machine bearing bracket, which is formed by a basic body unit 62 and comprises three basic bodies 64, 66, 68. These have been formed in each case from a sheet-metal part by deep drawing. Disposed in a receiving region 70 of the basic body 68 is a bearing 72, in which a motor shaft 74 is mounted. For receiving a drilling spindle 76, the gear unit 58 is provided with a bearing 78, which is disposed in a receiving region 80 of the basic body 66. When the drill 54 is in operation, the motor shaft 74 is driven by the motor unit 56, wherein a rotational movement of the motor shaft 74 is converted by a gear 82 to a rotational movement of the drilling spindle 76.
Reference characters hammer drill 45.2 recess 12 motor unit 46 basic body unit 14 motor 48 basic body 16 motor shaft 50 receiving region 18 intermediate shaft 52 receiving region gear 54 drill 22 ball bearing 56 motor unit 24 drive piston 58 gear unit 26 hammer tube 60 tool chuck 28 housing 62 basic body unit basic body unit 64 basic body 32 basic body 66 basic body 36 basic body 70 receiving region 37 extension 72 bearing 38 basic body 74 motor shaft 39.1 recess 76 drilling spindle 39.2 recess 78 bearing basic body unit 80 receiving region 42 basic body 82 gear 44 basic body 45.1 recess
Claims (9)
- Claims 1. Hand tool machine having a hand tool machine bearing bracketaccording to one of the following claims.
- 2. Hand tool machine having a bearing bracket, in particular for receiving gear elements, having a basic body unit (30, 40, 46, 62) , characterized in that the basic body unit (30, 40, 46, 62) comprises at least one basic body (32, 34, 36, 38, 42, 44, 48, 64, 66, 68), which is formed by a sheet-metal part.
- 3. Hand tool machine according to claim 2, characterized in that the basic body (32, 34, 36, 38, 42, 48, 66, 68) is formed by a deep-drawn part.
- 4. Hand tool machine according to claim 2 or 3, characterized in that the basic body unit (30, 40, 62) comprises at least two basic bodies (32, 34, 36, 38, 42, 44, 64, 66, 68), which are formed in each case by a sheet-metal part and fastened to one another.
- 5. Hand tool machine according to claim 4, characterized in that the basic bodies (42, 44) are joined together by a penetrative joining operation.
- 6. Hand tool machine according to one of claims 2 to 5, characterized in that the basic body unit (46) comprises a basic body (48), which is formed by a sheet-metal part and comprises at least two receiving regions (50, 52)
- 7. Hand tool machine according to one of claims 2 to 6, characterized in that the basic body unit (46) comprises at least two receiving regions (50, 52), which are manufactured in one manufacturing step.
- 8. Hand tool machine according to one of claims 2 to 7, characterized in that the basic body unit (30, 40, 62) comprises sleeve-shaped and diskshaped basic bodies (32, 34, 36, 38, 42, 44, 64, 66, 68)
- 9. A hand tool machine substantially as herein described with reference to the drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005036730A DE102005036730A1 (en) | 2005-08-04 | 2005-08-04 | Hand tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0615393D0 GB0615393D0 (en) | 2006-09-13 |
| GB2429425A true GB2429425A (en) | 2007-02-28 |
Family
ID=37027139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0615393A Withdrawn GB2429425A (en) | 2005-08-04 | 2006-08-02 | Hand tool machine with bearing bracket |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102005036730A1 (en) |
| GB (1) | GB2429425A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238600A (en) * | 1997-02-28 | 1998-09-08 | Shibaura Eng Works Co Ltd | Transmission |
| EP0929381A1 (en) * | 1996-10-04 | 1999-07-21 | INA Wälzlager Schaeffler oHG | Striking tool provided with an air-cushion impact mechanism |
| EP0942810A1 (en) * | 1997-08-26 | 1999-09-22 | Atlas Copco Electric Tools GmbH | Driving device |
| WO2000025988A1 (en) * | 1998-11-02 | 2000-05-11 | INA Wälzlager Schaeffler oHG | Wobble mechanism for a striking tool |
| GB2395456A (en) * | 2002-11-20 | 2004-05-26 | Bosch Gmbh Robert | Hand held machine tool |
| US20040163832A1 (en) * | 2002-12-04 | 2004-08-26 | Reinhard Riedl | Multiple mounting brackets |
-
2005
- 2005-08-04 DE DE102005036730A patent/DE102005036730A1/en not_active Withdrawn
-
2006
- 2006-08-02 GB GB0615393A patent/GB2429425A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0929381A1 (en) * | 1996-10-04 | 1999-07-21 | INA Wälzlager Schaeffler oHG | Striking tool provided with an air-cushion impact mechanism |
| JPH10238600A (en) * | 1997-02-28 | 1998-09-08 | Shibaura Eng Works Co Ltd | Transmission |
| EP0942810A1 (en) * | 1997-08-26 | 1999-09-22 | Atlas Copco Electric Tools GmbH | Driving device |
| WO2000025988A1 (en) * | 1998-11-02 | 2000-05-11 | INA Wälzlager Schaeffler oHG | Wobble mechanism for a striking tool |
| GB2395456A (en) * | 2002-11-20 | 2004-05-26 | Bosch Gmbh Robert | Hand held machine tool |
| US20040163832A1 (en) * | 2002-12-04 | 2004-08-26 | Reinhard Riedl | Multiple mounting brackets |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0615393D0 (en) | 2006-09-13 |
| DE102005036730A1 (en) | 2007-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |