CH675847A5 - - Google Patents
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- Publication number
- CH675847A5 CH675847A5 CH166588A CH166588A CH675847A5 CH 675847 A5 CH675847 A5 CH 675847A5 CH 166588 A CH166588 A CH 166588A CH 166588 A CH166588 A CH 166588A CH 675847 A5 CH675847 A5 CH 675847A5
- Authority
- CH
- Switzerland
- Prior art keywords
- piston
- hammer drill
- drill according
- air
- air chamber
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 claims 13
- 239000012080 ambient air Substances 0.000 claims 1
- 238000009527 percussion Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- B25D11/06—Means for driving the impulse member
- B25D11/12—Means for driving the impulse member comprising a crank mechanism
- B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
-
- 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
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873717694 DE3717694A1 (de) | 1987-05-26 | 1987-05-26 | Bohrhammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH675847A5 true CH675847A5 (enrdf_load_stackoverflow) | 1990-11-15 |
Family
ID=6328433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH166588A CH675847A5 (enrdf_load_stackoverflow) | 1987-05-26 | 1988-05-04 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH675847A5 (enrdf_load_stackoverflow) |
| DE (1) | DE3717694A1 (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9418119U1 (de) * | 1994-11-11 | 1995-01-19 | RAS GmbH, 57647 Nistertal | Schlagdämpfungsvorrichtung |
| DE10348514B3 (de) * | 2003-10-18 | 2005-02-17 | Hilti Ag | Handwerkzeugmaschine mit einem Schlagwerk mit zweiteiligem Pleuel |
| EP1584422B1 (de) * | 2004-04-07 | 2008-10-29 | HILTI Aktiengesellschaft | Verfahren und Einrichtung zur Reduktion von Druckspitzen in einer Handwerkzeugmaschine mit elektropneumatischem Schlagwerk |
| DE202011110340U1 (de) * | 2011-06-27 | 2013-09-12 | Wacker Neuson Produktion GmbH & Co. KG | Luftfederschlagwerk mit geteiltem Luftfedervolumen |
| EP3034242A1 (de) * | 2014-12-18 | 2016-06-22 | HILTI Aktiengesellschaft | Handwerkzeugmaschine |
-
1987
- 1987-05-26 DE DE19873717694 patent/DE3717694A1/de not_active Withdrawn
-
1988
- 1988-05-04 CH CH166588A patent/CH675847A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3717694A1 (de) | 1988-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |