SE9500511D0 - Methods and pressure fluid systems for variable force application - Google Patents
Methods and pressure fluid systems for variable force applicationInfo
- Publication number
- SE9500511D0 SE9500511D0 SE9500511A SE9500511A SE9500511D0 SE 9500511 D0 SE9500511 D0 SE 9500511D0 SE 9500511 A SE9500511 A SE 9500511A SE 9500511 A SE9500511 A SE 9500511A SE 9500511 D0 SE9500511 D0 SE 9500511D0
- Authority
- SE
- Sweden
- Prior art keywords
- working
- piston
- pressure fluid
- plus side
- working unit
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/048—Hydraulically operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
In a pressure fluid system comprising at least one working unit (14), a method of pressuring or urging the piston rod (14b) of the working unit towards an element with varying power to achieve an instantaneous increase in fluid flow to the piston rod and therewith achieve quick piston-rod engagement with the element and thereupon automatic transition to a lower speed with greater power during the actual working stroke, wherein the system pressure conduit (13) in addition to being connected to the plus side (14d) of the working cylinder or cylinders (14) is also connected via a throttle-check valve (6) to the minus side (4c) of an accumulator cylinder (4), and wherein the plus side of the accumulator cylinder is connected via a selector valve (3) to the plus side (14d) of the working unit to initiate a working stroke, and to the minus side (14c) of the working unit to return the working piston or pistons. The connection to the plus side (14d) of the working piston is effected via a check valve (5). The invention also relates to a pressure fluid system that operates in accordance with the method.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9500511A SE9500511L (en) | 1995-02-13 | 1995-02-13 | Methods and pressure fluid systems for variable force application |
PCT/SE1996/000164 WO1996025273A1 (en) | 1995-02-13 | 1996-02-09 | Method and pressure fluid system for variable exertion of power |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9500511A SE9500511L (en) | 1995-02-13 | 1995-02-13 | Methods and pressure fluid systems for variable force application |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9500511D0 true SE9500511D0 (en) | 1995-02-13 |
SE503032C2 SE503032C2 (en) | 1996-03-11 |
SE9500511L SE9500511L (en) | 1996-03-11 |
Family
ID=20397187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9500511A SE9500511L (en) | 1995-02-13 | 1995-02-13 | Methods and pressure fluid systems for variable force application |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE9500511L (en) |
WO (1) | WO1996025273A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9662777B2 (en) | 2013-08-22 | 2017-05-30 | Techtronic Power Tools Technology Limited | Pneumatic fastener driver |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1503334A1 (en) * | 1962-12-03 | 1969-11-06 | Keelavite Hydraulics Ltd | Hydraulic device for generating a reciprocating movement |
SE391664B (en) * | 1973-10-23 | 1977-02-28 | Svenska Hymas Ab | DEVICE FOR HYDRAULICALLY POWERED IMPACTING TOOL |
IT8220745V0 (en) * | 1982-02-08 | 1982-02-08 | O R M A C Dei F Lli Cucchetti | HAMMER PUSHING PLATE FOR BOETTE NAILING MACHINES AND FOOTWEAR SIDES. |
-
1995
- 1995-02-13 SE SE9500511A patent/SE9500511L/en not_active IP Right Cessation
-
1996
- 1996-02-09 WO PCT/SE1996/000164 patent/WO1996025273A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
SE503032C2 (en) | 1996-03-11 |
SE9500511L (en) | 1996-03-11 |
WO1996025273A1 (en) | 1996-08-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |