CN1192862C - Hand-held electric tool system - Google Patents

Hand-held electric tool system Download PDF

Info

Publication number
CN1192862C
CN1192862C CN 00126019 CN00126019A CN1192862C CN 1192862 C CN1192862 C CN 1192862C CN 00126019 CN00126019 CN 00126019 CN 00126019 A CN00126019 A CN 00126019A CN 1192862 C CN1192862 C CN 1192862C
Authority
CN
China
Prior art keywords
plug
pressure roller
type instrument
roller body
electric hand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 00126019
Other languages
Chinese (zh)
Other versions
CN1284417A (en
Inventor
P·斯蒂尔勒
M·伦纳
J·米勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN1284417A publication Critical patent/CN1284417A/en
Application granted granted Critical
Publication of CN1192862C publication Critical patent/CN1192862C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B23D79/02Machines or devices for scraping
    • B23D79/06Machines or devices for scraping with reciprocating cutting-tool

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Drilling And Boring (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A hand machine tool comprises a motor disposed in a housing, and operationally connected by a drive shaft to a right angle gear. The gear comprises a supported output shaft operationally connected via an eccentric and a driving element to a reciprocable interchangeable tool. The tool is supported within a guide bearing which comprises at least one first rolling body in a front region of a first bearing axis above the interchangeable tool, and at least one second rolling body in a second bearing axis below the tool. At least one third rolling body is provided in a third bearing axis. The machine tool may be used as a scraper.

Description

Electric hand tool
Technical field
The present invention relates to a kind of electric hand tool, have a motor that is arranged on casing inside, motor is in transmission connection by a driving shaft and bevel gearing, bevel gearing has the driven shaft of a bearing supporting, driven shaft is by an eccentric part and a synchronous piece, keep being in transmission connection with a plug-in type instrument of doing the turnover motion, the plug-in type instrument is supported in guided bearing.
Background technology
Disclose a class electric hand tool by DE 195 47 332 A1, their cylindrical shell is made up of two plastic casing outer covers, and the edge of outer cover constitutes an engagement lip respectively, and they are defined as horizontal composition plane.The housing outer cover links each other by bolt.Be provided with a motor that has the impeller of drying in enclosure interior, the driving shaft of motor is bearing in the housing outer cover and with a cone pinion rotation by ball bearing and connects firmly.Pinion and one rotate fixed supported circular cone disk gear engagement by driven shaft, and the turning cylinder of circular cone disk gear is vertical with driving shaft to be provided with.
Driven shaft has a bearing position away from instrument, and there is the sliding bearing of an annular this position, and bearing is packed in the bearing space of columniform housing outer cover.In addition, driven shaft has a bearing position that the Distance tool is nearer, and there is a shell-like bearing insert that has needle bearing this position.
Rotor journal by the terminal carrying of the very near driven shaft of the Distance tool passes bearing holder (housing, cover), in the hole of the synchronous piece of a connecting rod shape of top embedding.This synchronous piece utilizes a projection to embed in the space of plug-in type instrument, and the plug-in type instrument is supported in the housing outer cover front portion by a guided bearing.Guided bearing make by an agglomerated material and the slidingsurface in gathering sill on guiding plug-in type instrument.If electric hand tool is on an operating position that is arranged essentially parallel to finished surface, utilize the plug-in type instrument to be pressed on the finished surface, then produce one act on the plug-in type instrument, torsional axis is perpendicular to the torsional moment of the direction of motion, the plug-in type instrument is supported at the front upper part and the rear lower of guided bearing.In order to reduce in the sliding friction of common higher load part or partly to replace by rolling friction, before gathering sill, the top of plug-in type instrument, be provided with one first pressure roller body and in the back of gathering sill, below the plug-in type instrument, be provided with one second pressure roller body, by them, the plug-in type instrument is supported.
Summary of the invention
The objective of the invention is to reduce the damaged and wearing and tearing of electric hand tool.
The present invention relates to a kind of electric hand tool, have a motor that is arranged on casing inside, motor is in transmission connection by a driving shaft and bevel gearing, bevel gearing has the driven shaft of a bearing supporting, driven shaft is by an eccentric part and a synchronous piece, keep being in transmission connection with a plug-in type instrument of doing the turnover motion, the plug-in type instrument is supported in guided bearing.Guided bearing forwardly, in first supporting axis on the plug-in type instrument, has one first pressure roller body at least, and have one second pressure roller body at least in rear portion, second supporting axis below the plug-in type instrument, by them, the plug-in type instrument is supported.The present invention's suggestion, guided bearing has one the 3rd pressure roller body at least at least one the 3rd supporting axis, by this pressure roller body, the plug-in type instrument is supported, and guided bearing has the retainer of a U-shaped, this retainer is supporting the pressure roller body, processes with the method for hard steel plate with bending ram.
Near the known front upper part and rear lower in the remaining part of guided bearing, usually must be supported with very big supporting force, and particularly for counter-force very big on the direction of motion and special applicable cases, for example with the situation of electric hand tool as the cutting tool use, thus, the present invention proposes, and guided bearing is at least one the 3rd supporting axis, one the 3rd pressure roller body is arranged, can support the plug-in type instrument by it.Particularly advantageously be, the 3rd pressure roller body is arranged on before the second pressure roller body, below the plug-in type instrument, promptly particularly occurs the position of big supporting force usually.Sliding friction can be reduced or be replaced by rolling friction at least in part.
Propose in another embodiment of the invention, in one the 4th supporting axis, behind the 3rd pressure roller body, instrument is provided with one the 4th pressure roller body, can support the plug-in type instrument by it.The plug-in type instrument can pass through to be supported by the pressure roller body fully with following above it, and sliding friction is advantageously avoided in these parts.
In addition, in guided bearing, the side facing to each plug-in type instrument preferably is provided with a pressure roller body at least, and by these pressure roller bodies, the plug-in type instrument is supported by its side perpendicular to its direction of motion at least.Sliding friction can continue to be reduced, and utilizes two supporting axis all to be avoided on each side.
The pressure roller body can be with different, and the frame mode that the professional sees fit is realized, for example sphere, roll forming, taper etc.In a supporting axis, a plurality of pressure roller bodies can be set.In order to bear torsional moment really statically, preferably the plug-in type instrument on first position with form of straight lines, for example by a plurality of, the ball or the roller that on a line, are provided with, and second position with the form of point, for example be supported by a spheroid.The pressure roller body of taper can advantageously be utilized for this reason, promptly bears combined load and a high ability to bear is arranged basically.
Particularly advantageous is that at least one pressure roller body is the aciculiform structure.The pressure roller body of aciculiform is particularly suitable for shock loading, because its minor diameter and flat structure, and, utilize a small amount of pressure roller body just can realize relatively little surface pressing based on its bigger length.
In addition, can advantageously in one or more aciculiform structures, patterned structure be set, for example one or more identical or different impressions.Can realize especially thus, corresponding embossing and not the plug-in type instrument of embossing be imported in the guided bearing of embossing, and the plug-in type instrument of embossing can not import the guided bearing of not embossing.Can avoid like this, in unaccommodated plug-in type instrument imported the electric hand tool of determining, electric hand tool and/or plug-in type instrument were damaged.Especially can realize that the plug-in type instrument of the not embossing of low power form of implementation can import powerful form of implementation, and the plug-in type instrument of the embossing of high-power form of implementation can not import the small-power form of implementation, because this may overload.The plug-in type instrument can be by different, and the professional thinks that significant method is correspondingly embossed, for example can shape and obtain corresponding projection and/or sunk part especially economically by compacting.
Propose in one embodiment of the invention, guided bearing has the retainer of a U-shaped.This U-shaped retainer is used the method for punching press-bending economically, by hard steel plate manufacturing.Guided bearing can and be saved ground, space very lightly and realize.Further, synchronous piece can utilize little manufacturing to spend between two edges of a wing of U-shaped retainer to be provided with simple in structurely.
The lid side of U-shaped retainer can be used as guide surface be applied to plug-in type instrument or plug-in type instrument can be preferably thereon on surface and the lower surface, by the pressure roller body supporting of at least two aciculiform structures, be directed moving in the slotted hole of pressure roller body in the edge of a wing of U-shaped retainer respectively.
In order to simplify assembling, the automation of shortening installation time and especially being used in large-scale production becomes possibility, and the present invention proposes, and the pressure roller body, was contained in the retainer in the mode that can not lose before guided bearing is packed casing into by at least one member.This structural member can shape on retainer or be made of an additional member, for example is made of a holding plate.An additional holding plate can pass through very little cost, advantageously is fastened on guided bearing or the retainer by a kayser.
Further, the present invention proposes, and synchronous piece is bearing on the plug-in type instrument by at least one supporting plane, has limited the free degree thus, has reduced friction and also can improve dispersing of heat and disperse the coefficient of friction that interrelates with heat.For fear of, must consider the projection of some shape on the plug-in type instrument and/or support rib that for the organization plan of guided bearing preferably these projectioies and/or supporting rib all shape on synchronous piece.Yet the advantage of doing like this is that promptly, the projection that is used for embossing that shapes on the plug-in type instrument is simultaneously as the utilization of supporting rib.
In addition, friction can be reduced, and synchronous piece is supported in the direction towards the plug-in type instrument by at least one pressure roller body for this reason, and or act on the plug-in type instrument by a pressure roller body, perhaps logical pressure roller body acts on the guided bearing.The pressure roller body can be supported in guided bearing or in the synchronous piece.
Other advantages are provided by following schematic view illustrating.An embodiment of the present invention has been described in the drawings.Accompanying drawing, specification and claims have comprised a plurality of features of combining.The professional person will be on purpose notice these features separately and have a mind to the free burial ground for the destitute and grasp other combinations.
Description of drawings
Be illustrated as:
Fig. 1 is according to the longitudinal sectional view of electric hand tool of the present invention,
The electric hand tool that Fig. 2 opens from below according to Fig. 1,
One of Fig. 3 is by the partial enlarged view of III part among Fig. 1, have a plug-in type instrument of packing into and
Fig. 4 is from top stravismus guided bearing.
The specific embodiment
Fig. 1 has shown according to of the present invention, is used for the longitudinal sectional view of the electric hand tool of surperficial shaving processing, and the ratio scraper of demonstration is short.Electric hand tool has a motor 12 that is arranged in the casing 10, and motor opens and closes by cable 76 power supplies and by a switch 78.Motor 12 is in transmission connection by driving shaft 14 and blowing impeller 80 and bevel gearing 16, and a pinion 82 is fixed on the driving shaft 14, pinion 82 and disk gear 84 engagements by driven shaft 18 supportings, its rotation is vertical with driving shaft 14.On the end below driven shaft 18 points to, shaped a rotor journal 20, it embeds the synchronous piece 22 of connecting rod shape.
Synchronous piece 22 is by a supporting plane 70 that is made of the supporting rib that shapes 72,74, is bearing on the plug-in type instrument 24 and utilizes a pin that shapes 88 to embed in the slotted hole 90 of plug-in type instruments 24 (Fig. 2 and 3).Rotor journal 20 is bearing in the synchronous piece 22 by a roller bearing 92.Only when plug-in type instrument 24 is placed on the finished surface and repeatedly during shaving, by slotted hole 90, from the motion of driving shaft 14, be delivered on the plug-in type instrument 24 by synchronous piece 22, pin 88 is bearing in the edge of slotted hole 90 and will moves back and forth and is delivered on the plug-in type instrument 24.Plug-in type instrument 24 keeps static with respect to drive shaft rotating 14 when idle running, so that reduce wearing and tearing on the part of transmitting motion.Because the fault in the idle running that the action of plug-in type instrument produces is avoided.Further, static plug-in type instrument 24 is placed on the position of an expection on the work surface targetedly when idle running.
Bevel gearing 16 is arranged in the gear mechanism housing made from aluminium compression casting 94 of an isolating construction, this housing front upper part 96 constitute casings 10 first and and lid 150 constitute the second portion of casings 10 and the outer wall of electric hand tool in preceding bottom 98 together.
In gear mechanism housing 94, be integrated with a plurality of bearing bearing positions.The driving shaft 14 of motor 12 is at first end that deviates from plug-in type instrument 24 directions, is bearing in the plastic casing outer cover 104 above first by bearing 100 and by member 102.Second end that points to the driving shaft 14 of plug-in type instrument 24 is bearing in the alms bowl shape space 108 in the gear mechanism housing 94 by bearing 106.Bearing 106 surpasses 1/3 length and is slidingly matched by one and 110 directly is bearing in the gear mechanism housing 94 having approximately in the radial direction, and is bearing in the gear mechanism housing 94 by a rubber ring 112 diametrically by about 2/3 length.In the axial direction, bearing 106 is fixed in the alms bowl shape space 108 by a maintenance rib that does not show in detail, shapes on the screw boss of the superincumbent casing outer cover 104 of maintenance rib and when assembling, moves into before alms bowl shape space 34.
Further, driven shaft 18 in the above, the end that deviates from plug-in type instrument 24 utilizes first bearing 114 directly to utilize second bearing 116 to be bearing in the gear mechanism housing 94 by the bearing insert that constitutes guiding mechanism 118 at its second end that points to plug-in type instrument 24.In order to change plug-in type instrument 24, synchronous piece 22 is shifted to stage clip 156 by pressed-in block 86 along rotor journal 20, and stage clip is bearing in the groove 158 on the guiding mechanism 118.Pin 88 is shifted out by the slotted hole 90 of plug-in type instrument 24, removes this unwanted plug-in type instrument thus, another plug-in type instrument of packing into.
Guided bearing 26 is used for the U-shaped retainer 56 of plug-in type instrument 24 for this reason, be fixed on the gear mechanism housing 94, and by bolt 120 and the pin 122 that on gear mechanism housing 94, shapes, 124 is fixing, they insert the space 126,128 interior (Fig. 3 and Fig. 4) of the hd top face 130 of U-shaped retainer 56 with the shape locking mode.The guided bearing made from the method for punching press bending with hard steel plate 26 is bearing on the gear mechanism housing 94 with the end face 132 on the edge of a wing 62,64.Guided bearing 26 links with the locking mode and the gear mechanism housing 94 of shape and power reliably, and can avoid after punching press-bending process is handled the subsequent treatment of the supporting plane of guided bearing 26 and end face 132.Between the edge of a wing 62,64 of the retainer 56 of U-shaped, synchronous piece 22 is therefore to guarantee to be directed moving but do not rotate (Fig. 2).
Guided bearing 26 has one first pressure roller body 30 in first supporting axis of front upper part 28 on plug-in type instrument 24, and in rear portion 32, in second supporting axis below plug-in type instrument 24, one second pressure roller body 34 is arranged.According to the present invention, guided bearing has one the 3rd pressure roller body 36 in the 3rd supporting axis, and it is arranged on before the second pressure roller body 34, under the plug-in type instrument 24, and the 4th pressure roller body 38 is arranged in the 4th supporting axis, and it is arranged on after the 3rd pressure roller body 36, on the plug-in type instrument 24.Plug-in type instrument 24 thereon on side 58 and the downside 60 respectively by 30,34,36,38 supportings of two pressure roller bodies, these pressure roller bodies are the aciculiform structure and are directed moving in the slotted hole 66 on the edge of a wing 62,64 of U-shaped retainer 56.
In the profile of pressure roller body 30,34,36,38, be provided with embossing 54, they all are the indentation form.The utilization of plug-in type instrument is protruding accordingly or do not have projection can push guided bearing 26.Yet the plug-in type instrument that has a projection cannot push the guided bearing of not embossing, for example cannot push in the guided bearing of low power form of implementation of electric hand tool.
Further, each side 44 that in guided bearing 26, faces toward plug-in type instrument 24, pressure roller body 46, per two in 48,50,52 are separately positioned in two supporting axis, by these pressure roller bodies, plug-in type instrument 24 utilizes its side 44 to be supported (Fig. 3 and Fig. 4) perpendicular to its direction of motion 40,42.Fully by pressure roller body 30,34,36,38,46,48,50,52 are supported plug-in type instrument 24 in guided bearing 26.Sliding friction between guided bearing 26 and plug-in type instrument 24 is avoided.
The pressure roller body 46,48,50,52 of spherical structure is directed moving in taper slotted hole 134.Before guided bearing 26 fitted on casing 10 and the gear mechanism housing 94, ball to the inside by the conical surface 136, by the mode of holding plate 68 can not lose, was contained in the retainer 56 laterally.At the confined state that guided bearing 16 is installing on the gear mechanism housing 94, spherical pressure roller is fixed by the sidewall of the transmission device 94 that do not show in detail laterally in addition, and sidewall is attached on the side 142,144 of holding plate 68.Holding plate 68 passes through each projection 138 respectively in each side, embed in the space 140 on the retainer 56 and except that the external pressure roller body 30,34,36 that also guarantees the aciculiform structure of spherical pressure roller, 38 before being contained on the gear mechanism housing 94, can not lose in retainer 56.
On the direction of working portion; electric hand tool utilizes 148 sealings of a felt seal pad by a protective cover 146; the felt seal pad is arranged on gear mechanism housing 94 with the shape locking mode and covers between 150; and gear mechanism housing 94 and lid 150 snap in protective cover between two circumferential projection 152,154 of protective cover.Protective cover 146 is installed especially simply thus and can not linked with electric hand tool especially with coming off.It is protruding that plug-in type instrument 24 passes protective cover 146.
160, two of cabinet outer covers casing 10 also has one second except the casing outer cover above first below cover on the operating position of a level outward and combine (Fig. 2) in the composition planes 162 of a level.Four covers 164,166,168,170 shape on gear mechanism housing 94, and four pins 172 of top casing outer cover 104 are inserted in these covers with power and the sealed mode of shape from top.Further, from following, two pins of the following casing outer cover 160 that shows in detail not, insertion deviates from two covers 164 of plug-in type instrument 24 directions, 166, and cover two pins of 150 and insert two covers 168,170 towards plug-in type instrument 24 directions with shape and force closure mode.The pin 172 of casing outer cover 104,160 and the pin of lid 150 constitute in screw boss, by pin, and casing outer cover 104,160, lid 150 and gear mechanism housing 94 are tightened in together each other by the bolt that does not show in detail.

Claims (13)

1. electric hand tool, have the motor (12) that is arranged in the casing (10), motor is in transmission connection by driving shaft (14) and bevel gearing (16), bevel gearing has the driven shaft (18) of a bearing supporting, the plug-in type instrument (24) that driven shaft moves back and forth by an eccentric part (20) and synchronous piece (22) and a work is in and is in transmission connection, the plug-in type tool support is in guided bearing (26), guided bearing is (28) forwardly, in first supporting axis on plug-in type instrument (24), has one first pressure roller body (30) at least, and at the rear portion (32), in second supporting axis of the bottom of plug-in type instrument (24), has one second pressure roller body (34) at least, by these pressure roller bodies, plug-in type instrument (24) is supported, it is characterized in that, guided bearing (26) is at least one the 3rd supporting axis, has one the 3rd pressure roller body (36) at least, by this pressure roller body, plug-in type instrument (24) is supported, guided bearing (26) has the retainer (56) of a U-shaped, this retainer is supporting the pressure roller body, processes with the method for hard steel plate with bending ram.
2. electric hand tool as claimed in claim 1 is characterized in that, the 3rd pressure roller body (36) is arranged on the second pressure roller body (34) before, under the plug-in type instrument (24).
3. electric hand tool as claimed in claim 2 is characterized in that, in one the 4th supporting axis, the 4th pressure roller body (38) is arranged on the 3rd pressure roller body (36) afterwards, on the plug-in type instrument (24), by this pressure roller body, plug-in type instrument (24) is supported.
4. as one of above-mentioned claim described electric hand tool, it is characterized in that, in guided bearing (26), each side (44) facing to plug-in type instrument (24) is provided with a pressure roller body (46 at least, 48,50,52), by these pressure roller bodies, plug-in type instrument (24) is supported by plug-in type instrument side (44) perpendicular to plug-in type movement of tool direction (40,42) at least.
5. electric hand tool as claimed in claim 1 is characterized in that, at least one pressure roller body (30,34,36,38) is the aciculiform structure.
6. electric hand tool as claimed in claim 5 is characterized in that, in the profile of at least one aciculiform, is provided with a patterned structure (54) at least.
7. electric hand tool as claimed in claim 1, it is characterized in that, plug-in type instrument (24) is side (58) and downside (60) the pressure roller body (30 by at least two aciculiform structures respectively thereon, 34,36,38) be supported, these pressure roller bodies are directed moving in the slotted hole (66) in the edge of a wing (62,64) of U-shaped retainer (56).
8. as claim 1 or 7 described electric hand tools, it is characterized in that synchronous piece (22) is directed moving between the edge of a wing (62,64) of U-shaped retainer (56), but not rotatable.
9. electric hand tool as claimed in claim 1 is characterized in that, pressure roller body (30,34,36,38,46,48,50,52) by at least one structural member (68), pack casing (10) into before, be placed in the guided bearing (26) in the mode that can not lose at guided bearing (26).
10. electric hand tool as claimed in claim 9 is characterized in that, structural member (68) is made of a fixed head that is embedded in the guided bearing (26).
11. electric hand tool as claimed in claim 1 is characterized in that synchronous piece (22) is placed on the plug-in type instrument (24) by at least one supporting plane (70).
12. electric hand tool as claimed in claim 11 is characterized in that, supporting plane (70) is made of the projection of supporting rib (72,74) that shapes on synchronous piece (22) and/or some shape.
13. electric hand tool as claimed in claim 1 is characterized in that, synchronous piece is being supported on the direction of plug-in type instrument by at least one pressure roller body.
CN 00126019 1999-08-16 2000-08-16 Hand-held electric tool system Expired - Fee Related CN1192862C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999138175 DE19938175B4 (en) 1999-08-16 1999-08-16 Hand tool with a guide bearing for an insert tool
DE19938175.5 1999-08-16

Publications (2)

Publication Number Publication Date
CN1284417A CN1284417A (en) 2001-02-21
CN1192862C true CN1192862C (en) 2005-03-16

Family

ID=7918136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00126019 Expired - Fee Related CN1192862C (en) 1999-08-16 2000-08-16 Hand-held electric tool system

Country Status (4)

Country Link
CN (1) CN1192862C (en)
DE (1) DE19938175B4 (en)
FR (1) FR2797604B1 (en)
GB (1) GB2355220B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2808465Y (en) * 2005-02-18 2006-08-23 常州赛迪电气制造有限公司 Cutter-locking structure for electric shovel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966178A (en) * 1958-02-13 1960-12-27 Porter Co Inc H K Drive mechanism for power saw
DE3448276C3 (en) * 1984-08-01 1997-06-05 Foell Remswerk Jigsaw with a clamping device
US4628605A (en) * 1985-06-10 1986-12-16 Porter-Cable Corporation Orbital bayonet saw
NL9201369A (en) * 1992-07-29 1994-02-16 Emerson Electric Co Electric hand tools with reciprocating drive.
DE19547332A1 (en) * 1995-12-19 1997-06-26 Bosch Gmbh Robert Electric hand machine tool

Also Published As

Publication number Publication date
FR2797604A1 (en) 2001-02-23
CN1284417A (en) 2001-02-21
GB0019742D0 (en) 2000-09-27
DE19938175A1 (en) 2001-03-08
FR2797604B1 (en) 2003-01-24
GB2355220B (en) 2001-09-05
GB2355220A (en) 2001-04-18
DE19938175B4 (en) 2005-08-11

Similar Documents

Publication Publication Date Title
CN1105839C (en) Gear housing
CN1192862C (en) Hand-held electric tool system
CN100548109C (en) Braking device for garden tool
CN1205001C (en) Hand-held electric tool
CN117123336A (en) Concrete waste crushing device
CN112157628A (en) Mechanism for automatically press-fitting piston clamp spring
KR20030084574A (en) Mechanical press
JP2002539951A (en) Rotary press with interchangeable insert punch
CN112253694B (en) Transmission structure of electric push rod
CN213261198U (en) Transmission mechanism on press machine
CN213648836U (en) Turn-back type servo press
CN113905836B (en) Stamping device
CN212202709U (en) Novel punch press hydro-cylinder stroke adjustment mechanism
CN1173806C (en) Hand-held electric tool
CN1293994C (en) Hand-held electric tool system
JP3056679U (en) Crushing equipment
CN217814280U (en) Engineering machine tool hydro-cylinder pressure testing equipment
EP1316700A3 (en) Rotary machine for vehicle
DE50207000D1 (en) BEARING ARRANGEMENT AND ELECTRIC DRIVE WITH SUCH A BEARING ARRANGEMENT
KR100428306B1 (en) Rotary cam press
CN110829712A (en) Novel guide rail device
CN2615193Y (en) Bituminous pavement milling planer rotor parts
CN109109454B (en) Traction device of printing machine
CA2364346A1 (en) Mechanical press drive
JP2628688B2 (en) Hoop wood cutter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050316

Termination date: 20140816

EXPY Termination of patent right or utility model