CN1502449A - A hand tool machine particularly in the form of a drilling or percussion hammer - Google Patents
A hand tool machine particularly in the form of a drilling or percussion hammer Download PDFInfo
- Publication number
- CN1502449A CN1502449A CNA2003101163474A CN200310116347A CN1502449A CN 1502449 A CN1502449 A CN 1502449A CN A2003101163474 A CNA2003101163474 A CN A2003101163474A CN 200310116347 A CN200310116347 A CN 200310116347A CN 1502449 A CN1502449 A CN 1502449A
- Authority
- CN
- China
- Prior art keywords
- hand held
- held power
- power machine
- ring
- sleeve
- 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
- 238000005553 drilling Methods 0.000 title claims description 9
- 238000009527 percussion Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/191—Ram catchers for stopping the ram when entering idling mode
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
A hand-held machine tool in the form, in particular, of a rotary or percussion hammer has a motor-driven percussion mechanism (12), in which a striker (14) is connected preferably via an air cushion to a reciprocating drive member and delivers its energy via a striking element (18), guided axially movably in a guide part (19), to a tool (17) guided in a tool holder (16). The striker (14) is assigned a striker-catching device (32) which catches the striker in the idle position and has a ring (37) contained in a receptacle (36), through the inside of which ring a shoulder (28) of the striker (14) can extend. The receptacle (36) is realised by means of at least one deep-drawn part, in particular by means of at least one deepdrawn sleeve (38, 39).
Description
Technical field
The present invention relates to a kind of hand held power machine, especially drilling machine or jump bit machine.
Background technology
The guide that is used for impact body axially-movable guiding in a kind of known hand held power machine (DE 33 29 005 A1) of the type is made up of a special guide.Usually liquidating taps the head disposes an impact receiving system, and it receives on the no-load running position impacts head.This impact receiving system has the keeper of a band receiving unit, comprises a ring, especially flexible ring such as O type ring in this receiving unit, impacts head and can be punctured into this ring inside with a shoulder when the no-load running position.In order to realize receiving the receiving unit of ring, in corresponding keeper, leave a groove by machining, for example turning processing.Simultaneously also known this keeper is made up of the sleeve pipe or the similarity piece of machining, so as to realize encircling, the respective clamp of O type ring especially.But this is expensive.
Summary of the invention
According to the present invention, a kind of hand held power machine has been proposed, especially drilling machine or jump bit machine, has electric motor driven beater mechanism, impact wherein that head preferably is connected with reciprocating actuator by mattress and energy passes to the cutter that is directed in the cutter receiver by the impact body that is directed to axial motion in guide, wherein liquidating taps the head has disposed on the no-load running position to receive and has impacted head, has an impact receiving system that is included in the ring in the receiving unit, impact the inside that an available step section is punctured into this ring, wherein: receiving unit constitutes by at least one deep drawing part.
By contrast, hand held power machine of the present invention has its advantage, promptly by making receiving unit by at least one deep drawing part, can realize very high size and form accuracy when saving great amount of cost.
Can be implemented in the further favourable configuration and the improvement of the hand held power machine that provides in the claim 1 by the measure of describing in other claims.When having the sleeve of two deep drawn according to this keeper of claim 7, but these two sleeve costs are suitable and realize as pre-assembled components with saving time.In addition, because the thin-wall construction of accessible parts can be realized high shape and dimensional accuracy when reducing weight.
Description of drawings
Express embodiments of the invention and explaining in the following description in the accompanying drawings.Accompanying drawing is represented the summary longitudinal section of a part of the hand held power machine of a percussive drill form that has a cutter that only is represented by dotted lines, wherein above longitudinal center's axis expression percussive drilling position and below expression no-load running position.
The specific embodiment
The part of a hand held power machine 10 of expression in the accompanying drawing, this hand held power machine is as percussive drill or jump bit mechanism one-tenth and have a housing 11, this housing has a drive motor not shown further, a transmission device and a beater mechanism 12, and the latter is at least partially disposed on the inside of a guide pipe 13.Beater mechanism 12 have one in guide pipe 13, reach the impact that is directed to slidably 14 hermetically and also have one unshowned, also be in guide pipe 13, reach the actuator that is directed to slidably hermetically, for example be the actuator of a piston form.Be provided with the hole 15 as air duct in the wall of guide pipe 13, they can open or close control with known manner in a front of impacting 14.Impact 14 and actuator between produce a mattress under the influence at reciprocating actuator in the zone that can not see, make by this mattress and to impact 14 and place oscillating movement, wherein impact 14 its energy passed on the cutter 17 that is directed in a cutter receiver 16 in the axial direction.It with known manner by one roughly the impact body 18 of tightening latch form realize, this impact body be set at impact 14 with cutter 17 between reach and in a guide 19, be directed to axial motion.The corresponding bump that impacts 14 an impact body 18 will cause: impact energy further is delivered on the cutter 17 that is inserted in the cutter receiver 16.
In the accompanying drawings, represent the percussive drilling position on the top of longitudinal center's axis 20 of hand held power machine 10, its right-hand member axially is pressed on the impact body 18 in 17 usefulness accompanying drawings are fixed a cutting tool in this position.Position shown in below longitudinal center's axis 20 is the no-load running position, and it is 17 compacted to fix a cutting tool in this position.
The guide 19 of the impact body 18 of reception and guiding tightening latch form immovably is fixed on feeling relieved in sleeve 30 and reaching axially.Impact body 18 is easy to move on axially in guide 19, and all impact energys can be utilized.
Advantageously, impact body 18 cooperates hermetically with the corresponding inner peripheral surface 22 of guide 19 in a circumferential direction, and impact body 18 also can be born sealing function like this.Impact body 18 has a sealing ring 23 on its circumference, for example be an O RunddichtringO.The inner peripheral surface 22 of guide 19 is configured to sealing surface, and guide 19 not only is used for the guiding of impact body 18 but also also is used as sealed diameter simultaneously thus.
On known hand held power machine 10, be used to encircle 37 receiving unit 36 and be machining by corresponding component or the parts by prior machining and constitute.The parts of this processing type or the manufacturing of use machining are expensive.Therewith differently, receiving unit 36 is realized by at least one deep drawing part, is to realize by the sleeve 38,39 of two deep drawn in the illustrated embodiment in illustrated hand held power machine 10.At this, receiving unit 36 is configured to radially inwardly unlimited basically cannelure, and this cannelure is formed between the sleeve 38,39 of two deep drawn.Therefore the keeper 35 that impacts a receiving system 32 in this form of implementation is manifold.In another unshowned embodiment a unitarily formed keeper 35 can be set differently therewith, it is configured to deep drawing part equally and has the whole section that constitutes a receiving unit 36 at least thus.The sleeve 38,39 of each deep drawn has a flange of radially inwardly stretching 40 or 41 at one end, they respectively constitute a ring side of receiving unit 36, especially cannelure.The sleeve 38,39 of each deep drawn has a flange of radially outward stretching 42 or 43 on the opposite other end, it is used in the axially mounting of sleeve 30 inside and/or radially clamping.Cover is slotting in this wise each other in the axial direction for the sleeve 38,39 of these two deep drawn, and promptly their corresponding cylindrical sleeve sections in fact accurately cooperate, and seamlessly receives inner sleeve 39 so that outer sleeve 38 in fact accurately cooperates to reach.At this, the flange of radially inwardly stretching 40,41 constitutes the especially ring side of cannelure-both sides of receiving unit 36-with being axially offset from one another.The such sizing of the distance of flange 40,41 is so that receive ring 37, especially O type ring therebetween reliably.Two other flange 42,43 of two sleeves 38,39 reclines mutually each other and axially is being supported on the guide 19 on the direction of cutter receiver 16 by buffering ring 34.In contrast to this axially on, like this keeper 35 of Gou Chenging by encircle 33, for example one tighten piston ring and be axially fixed on the sleeve 30.
The keepers 35 that are made of like this sleeve 38,39 of two deep drawn will cause the remarkable decline of manufacturing cost, because at least one deep drawn sleeve or two deep drawn sleeves 38,39 can be realized than receiving unit 36 costs of making by cutting are remarkable worthwhilely.Using under the situation of two deep drawn sleeves 38,39, but these sleeve cost efficients and make pre-assembled components with saving time.In addition because the thin-wall construction of accessible these sleeve parts can be realized high shape and dimensional accuracy when reducing weight.
With the corresponding percussive drilling work in the position above the longitudinal center axis 20 time, cutter 17 is owing to be pressed on the workpiece, it is pressed onto impact body 18 on the ring edge 24 of guide 19, the latter constitutes an axial stop, wherein guide 19 is bearing on the sleeve 30 and is bearing in thus on the cutter receiver 16 by buffering ring 34 and two sleeves 38,39 and by ring 33.At this, impact 14 and be positioned at the percussive drilling position, its head does not reach and encircles 37 and match on this position.
If cutter 17 no longer is pressed on the workpiece, then this cutter is no longer pressed to ring edge 24 with impact body 18.To this transition of no-load running the time, impact the 14 no-load running positions shown in moving to below longitudinal center's axis 20, its head 29 and step section 28 are punctured into the inside of ring 37 on this position.Impact 14 thus and be received in this no-load running position, in the no longer compacted state of cutter 17, impact head and be retained on this position.
Claims (16)
1. hand held power machine, especially drilling machine or jump bit machine, has electric motor driven beater mechanism (12), impact wherein that head (14) preferably is connected with reciprocating actuator by mattress and energy passes to the cutter (17) that is directed in cutter receiver (16) by the impact body (18) that is directed to axial motion in guide (19), wherein liquidate tap the head (14) disposed on the no-load running position to receive and impacted head, has an impact receiving system (32) that is included in the ring (37) in the receiving unit (36), impact the inside that head (14) available step sections (28) are punctured into this ring, it is characterized in that: receiving unit (36) constitutes by at least one deep drawing part.
2. according to the hand held power machine of claim 1, it is characterized in that: receiving unit (36) is configured to roughly radially inwardly unlimited cannelure, and this cannelure is realized by at least one deep drawing part.
3. according to the hand held power machine of claim 1 or 2, it is characterized in that: impact a receiving system (32) and have a keeper integral body or multi-piece type (35), this keeper is configured to deep drawing part and has the whole section of at least a portion of formation receiving unit (36) thus.
4. according to the hand held power machine of claim 3, it is characterized in that: the sleeve (38,39) that keeper (35) whole or multi-piece type has at least one deep drawn.
5. according to the hand held power machine of claim 4, it is characterized in that: the sleeve (38 of at least one deep drawn, 39) on one end thereof, have at least one flange of radially inwardly stretching (40,41), this flange constitute receiving unit (36)-especially cannelure-the ring side.
6. according to the hand held power machine of claim 4 or 5, it is characterized in that: the sleeve of at least one deep drawn (38,39) has the flange of radially outward stretching, be used for axially mounting and/or radially clamping (42,43) on its other end.
7. according to one hand held power machine in the claim 4 to 6, it is characterized in that: keeper (35) has the sleeve (38 of two deep drawn, 39), they axially overlap each other to insert and reach the flange of radially inwardly stretching with them (40,41) extend with being axially offset from one another a distance, and constituting the ring side of receiving unit (36)-especially cannelure-both sides.
8. according to the hand held power machine of claim 7, it is characterized in that: two sleeves (38,39) flange of radially outward stretching with them (42,43) reclines mutually each other and axially is being bearing on the guide (19) on the direction of cutter receiver (16) by buffering ring (34).
9. according to the hand held power machine of claim 7 or 8, it is characterized in that: two sleeves (38,39) flange of radially outward stretching by them (42,43) on the direction of carrying cutter receiver (16) by a ring (33), a relative cutter receiver of collar (16) axially mounting for example.
10. according to one hand held power machine in the claim 1 to 9, it is characterized in that: the periphery of impact body (18) forms the cooperation of sealing with the corresponding inner peripheral surface (22) of guide (19).
11. according to one hand held power machine in the claim 1 to 10, it is characterized in that: impact body (18) has a sealing ring (23) on its circumference, as an O type ring.
12. according to one hand held power machine in the claim 1 to 11, it is characterized in that: the inner peripheral surface (22) of guide (19) is configured to sealing surface.
13. according to one hand held power machine in the claim 1 to 12, it is characterized in that: guide (19) has a radially inner ring edge (24) on the one end, this ring edge is as the axial end portion backstop of impact body (18), and axially is being bearing on the shoulder (31) on the direction of cutter receiver (16) with the other end.
14. according to one hand held power machine in the claim 1 to 13, it is characterized in that: guide (19) is received in the sleeve (30) and by centering.
15. the hand held power machine according to claim 14 is characterized in that: shoulder (31) and/or sleeve (30) are single piece with cutter receiver (16).
16. according to one hand held power machine in the claim 7 to 9, it is characterized in that: shoulder (31) and sleeve (30) are single piece each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10253972.3 | 2002-11-20 | ||
| DE2002153972 DE10253972A1 (en) | 2002-11-20 | 2002-11-20 | Hand tool, in particular hammer drill or hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1502449A true CN1502449A (en) | 2004-06-09 |
| CN100341671C CN100341671C (en) | 2007-10-10 |
Family
ID=29762170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101163474A Expired - Fee Related CN100341671C (en) | 2002-11-20 | 2003-11-19 | A hand tool machine particularly in the form of a drilling or percussion hammer |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100341671C (en) |
| DE (1) | DE10253972A1 (en) |
| GB (1) | GB2395456B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785231A (en) * | 2011-05-16 | 2012-11-21 | 罗伯特·博世有限公司 | Tool receiving device |
| CN103538032A (en) * | 2012-07-12 | 2014-01-29 | 喜利得股份公司 | Hand-held power tool |
| CN106078622A (en) * | 2016-08-17 | 2016-11-09 | 张家港市创基机械设备制造有限公司 | Beater mechanism in electric impact drill |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005036730A1 (en) * | 2005-08-04 | 2007-02-08 | Robert Bosch Gmbh | Hand tool |
| GB2580618A (en) * | 2019-01-16 | 2020-07-29 | Black & Decker Inc | A hammer drill |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU947416A1 (en) * | 1978-12-27 | 1982-07-30 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов И Строительно-Отделочных Машин | Rotary-percussive machine |
| DE3039617A1 (en) * | 1980-10-21 | 1982-05-19 | Robert Bosch Gmbh, 7000 Stuttgart | DRILLING HAMMER |
| GB2109739B (en) * | 1981-11-13 | 1986-01-22 | Black & Decker Inc | A power tool having a plastics material housing |
| DE3309187A1 (en) * | 1983-03-15 | 1984-09-20 | Robert Bosch Gmbh, 7000 Stuttgart | HAMMER, ESPECIALLY DRILLING HAMMER |
| DE4215288A1 (en) * | 1991-07-08 | 1993-01-14 | Bosch Gmbh Robert | DRILLING HAMMER |
| US5437465A (en) * | 1993-10-22 | 1995-08-01 | Atlas Copco Elektrowerkzeuge Gmbh | Tool changing device on a hand-operated machine tool |
-
2002
- 2002-11-20 DE DE2002153972 patent/DE10253972A1/en not_active Withdrawn
-
2003
- 2003-11-18 GB GB0326839A patent/GB2395456B/en not_active Expired - Fee Related
- 2003-11-19 CN CNB2003101163474A patent/CN100341671C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785231A (en) * | 2011-05-16 | 2012-11-21 | 罗伯特·博世有限公司 | Tool receiving device |
| CN102785231B (en) * | 2011-05-16 | 2017-04-12 | 罗伯特·博世有限公司 | Tool receiving device |
| CN103538032A (en) * | 2012-07-12 | 2014-01-29 | 喜利得股份公司 | Hand-held power tool |
| CN103538032B (en) * | 2012-07-12 | 2017-11-14 | 喜利得股份公司 | Hand held power machine |
| US10058987B2 (en) | 2012-07-12 | 2018-08-28 | Hilti Aktiengesellschaft | Hand-held power tool |
| CN106078622A (en) * | 2016-08-17 | 2016-11-09 | 张家港市创基机械设备制造有限公司 | Beater mechanism in electric impact drill |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2395456A (en) | 2004-05-26 |
| GB2395456B (en) | 2005-07-20 |
| GB0326839D0 (en) | 2003-12-24 |
| CN100341671C (en) | 2007-10-10 |
| DE10253972A1 (en) | 2004-06-03 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 Termination date: 20201119 |