GB1417918A - Balanced reciprocating hand tool driven by rotary motion - Google Patents

Balanced reciprocating hand tool driven by rotary motion

Info

Publication number
GB1417918A
GB1417918A GB2746873A GB2746873A GB1417918A GB 1417918 A GB1417918 A GB 1417918A GB 2746873 A GB2746873 A GB 2746873A GB 2746873 A GB2746873 A GB 2746873A GB 1417918 A GB1417918 A GB 1417918A
Authority
GB
United Kingdom
Prior art keywords
housing
motor
plate
sander
tracks
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
Application number
GB2746873A
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.)
Shapiro L U
Original Assignee
Shapiro L U
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 Shapiro L U filed Critical Shapiro L U
Publication of GB1417918A publication Critical patent/GB1417918A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

1417918 Abrading; filing L U SHAPIRO 8 June 1973 [8 June 1972] 27468/73 Headings B3D and B3L [Also in Division B5] A hand tool comprises a reciprocating tool member, such as a sander 19, sabre saw or file, driven by a rotary motor 27, and a force balancing member 201 also driven by the rotary motor to reciprocate in opposition to the tool member. The motor is mounted in a housing 13 having handles 15, 17, the handle 15 having a trigger 21 controlling an air supply which passes through a passage 25 having an adjustable throttle valve 211 to the motor which is of the vane type and has a shaft 37 supported in bearings 29, 31. A pinion 35 is mounted on the shaft and meshes with gears 39, 41 secured to pins 43, 45 rotatably mounted in the housing. Each gear has an eccentrically-mounted pin 145 connected to one end of a respective rod 47, 147. The other end of rod 47 is connected by a pivot 49 to a forward drive plate 51 which is thereby reciprocated along guide tracks 53 in the housing. A rear plate 151 is also reciprocatable along the tracks, the two plates being connected by screws 65, 165 to a cover-plate 63 to which the sander shoe 19 is secured by screws 61, 161. The other end of the rod 147 is connected by a pivot 149 to the balancing member 201 which is guided for reciprocating movement along guideways 203 in the housing. The gearing is such that the balancing member always moves in the opposite direction to the sanding shoe. The air exhausted from the motor creates a pressure in the housing and acts to form an air bearing between the tracks 53 and the cover-plate 63. The air also blows away foreign matter and cools the sander shoe. In another embodiment, one of the rods 147 is larger than the other so that both the tool member and balancing member are at the same end of the housing.
GB2746873A 1972-06-08 1973-06-08 Balanced reciprocating hand tool driven by rotary motion Expired GB1417918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26109672A 1972-06-08 1972-06-08

Publications (1)

Publication Number Publication Date
GB1417918A true GB1417918A (en) 1975-12-17

Family

ID=22991944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2746873A Expired GB1417918A (en) 1972-06-08 1973-06-08 Balanced reciprocating hand tool driven by rotary motion

Country Status (3)

Country Link
JP (1) JPS5135276B2 (en)
DE (1) DE2322638A1 (en)
GB (1) GB1417918A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177712A (en) * 1978-03-10 1979-12-11 Herzig Albert M Air driven tool with double-ended aligned pistons oppositely driven
WO2000035629A1 (en) * 1998-12-17 2000-06-22 Dentatus Ab Motor-driven hand tool for filing, grinding and like tasks

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52138261A (en) * 1976-05-14 1977-11-18 Matsushita Electric Works Ltd Hair collar heater
US5049058A (en) * 1989-12-18 1991-09-17 Pmc, Inc. Rollout apparatus
DE4233460C2 (en) * 1992-10-05 1995-11-23 Wifag Maschf Device for avoiding vibrations in printing machines
DE19732001A1 (en) * 1997-07-25 1999-01-28 Festo Tooltechnic Gmbh & Co Drive device for a tool carrier of machine tools
IT201900014037A1 (en) * 2019-08-05 2021-02-05 Kuenzle & Tasin S R L FRONT STRAIGHT MOTION TOOL MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177712A (en) * 1978-03-10 1979-12-11 Herzig Albert M Air driven tool with double-ended aligned pistons oppositely driven
WO2000035629A1 (en) * 1998-12-17 2000-06-22 Dentatus Ab Motor-driven hand tool for filing, grinding and like tasks

Also Published As

Publication number Publication date
JPS5135276B2 (en) 1976-10-01
JPS4963092A (en) 1974-06-19
DE2322638A1 (en) 1973-12-20

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