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GB1366572A - Portable drills - Google Patents

Portable drills

Info

Publication number
GB1366572A
GB1366572A GB1345272A GB1345272A GB1366572A GB 1366572 A GB1366572 A GB 1366572A GB 1345272 A GB1345272 A GB 1345272A GB 1345272 A GB1345272 A GB 1345272A GB 1366572 A GB1366572 A GB 1366572A
Authority
GB
United Kingdom
Prior art keywords
control ring
adjusting screw
action
ring
drill
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
GB1345272A
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.)
Wolf Electric Tools Ltd
Original Assignee
Wolf Electric Tools Ltd
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 Wolf Electric Tools Ltd filed Critical Wolf Electric Tools Ltd
Priority to GB1345272A priority Critical patent/GB1366572A/en
Publication of GB1366572A publication Critical patent/GB1366572A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/062—Cam-actuated impulse-driving mechanisms
    • B25D2211/064—Axial cams, e.g. two camming surfaces coaxial with drill spindle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

1366572 Power drills WOLF ELECTRIC TOOLS Ltd 12 March 1973 [22 March 1972] 13452/72 Heading B3C [Also in Division B4] The adjusting screw 22 for moving notched rings 10, 12 into engagement when percussive action is required in addition to the rotary action in a power drill is moved between its two end positions for operative and non-operative percussive action by means of a hand-operated control ring 28 secured to the adjusting screw by a pair of screws 40, the end face of the adjusting screw being drilled with a number of screwreceiving holes to permit the correct angular positioning of the control ring during assembly; alternatively, the limit pin 34 which co-operates with the cut-away portion 32 of the control ring can be correctly positioned when a number of alternative pin-receiving holes are provided in the drill housing. A flat spring 42 disposed between the control ring and the housing prevents accidental rotation of the control ring. When percussive action is required, the control ring 28 is rotated to the appropriate end position to cause rotation of the adjusting screw 22 and axial movement of the drill shaft 14 via a thrust bearing 18 against the action of a spring, the shaft being slidable through its driving pinion 16 and carrying the notched ring 12 into cooperating engagement with the fixed notched ring 10.
GB1345272A 1973-03-12 1973-03-12 Portable drills Expired GB1366572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1345272A GB1366572A (en) 1973-03-12 1973-03-12 Portable drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1345272A GB1366572A (en) 1973-03-12 1973-03-12 Portable drills

Publications (1)

Publication Number Publication Date
GB1366572A true GB1366572A (en) 1974-09-11

Family

ID=10023241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1345272A Expired GB1366572A (en) 1973-03-12 1973-03-12 Portable drills

Country Status (1)

Country Link
GB (1) GB1366572A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223744A (en) * 1978-08-03 1980-09-23 The Singer Company Reversing hammer drill
EP0051923A1 (en) * 1980-11-11 1982-05-19 Kango Wolf Power Tools Limited Portable power-operated drill
US5449043A (en) * 1993-03-05 1995-09-12 Black & Decker Inc. Chuck spindle device and power tools incorporating same
US5458206A (en) * 1993-03-05 1995-10-17 Black & Decker Inc. Power tool and mechanism
US6688406B1 (en) 2003-01-29 2004-02-10 Mobiletron Electronics Co., Ltd. Power tool having a function control mechanism for controlling operation in one of rotary drive and hammering modes
US6691796B1 (en) 2003-02-24 2004-02-17 Mobiletron Electronics Co., Ltd. Power tool having an operating knob for controlling operation in one of rotary drive and hammering modes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223744A (en) * 1978-08-03 1980-09-23 The Singer Company Reversing hammer drill
EP0051923A1 (en) * 1980-11-11 1982-05-19 Kango Wolf Power Tools Limited Portable power-operated drill
US5449043A (en) * 1993-03-05 1995-09-12 Black & Decker Inc. Chuck spindle device and power tools incorporating same
US5458206A (en) * 1993-03-05 1995-10-17 Black & Decker Inc. Power tool and mechanism
US5704433A (en) * 1993-03-05 1998-01-06 Black & Decker Inc. Power tool and mechanism
USRE37905E1 (en) * 1993-03-05 2002-11-19 Black & Decker Inc. Power tool and mechanism
US6688406B1 (en) 2003-01-29 2004-02-10 Mobiletron Electronics Co., Ltd. Power tool having a function control mechanism for controlling operation in one of rotary drive and hammering modes
US6691796B1 (en) 2003-02-24 2004-02-17 Mobiletron Electronics Co., Ltd. Power tool having an operating knob for controlling operation in one of rotary drive and hammering modes

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee