GB1327436A - Portable drilling machine - Google Patents

Portable drilling machine

Info

Publication number
GB1327436A
GB1327436A GB5380870A GB5380870A GB1327436A GB 1327436 A GB1327436 A GB 1327436A GB 5380870 A GB5380870 A GB 5380870A GB 5380870 A GB5380870 A GB 5380870A GB 1327436 A GB1327436 A GB 1327436A
Authority
GB
United Kingdom
Prior art keywords
teeth
engagement
pin
rotary
nov
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
GB5380870A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1327436A publication Critical patent/GB1327436A/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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18024—Rotary to reciprocating and rotary

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Abstract

1327436 Rotary/percussive drills ROBERT BOSCH GmbH 12 Nov 1970 [15 Nov 1969] 53808/70 Heading B3C [Also in Division B4] A drill which can effect a pure rotary drilling operation or a rotary percussive drilling operation comprises a selector pin 35 which in the illustrated position permits a work spindle 11, carrying a gear wheel 10 secured thereto, to be moved rearwardly against bias of spring 27 so as to effect engagement of teeth 24 on the gear wheel 10 and teeth 25 on a member 26 secured in the housing 4. Rotation of the pin 35 to bring face 41 into contact with a sleeve 31 causes the latter and a thrust bearing 28 to be moved forwardly such that rearward movement of the spindle sufficient to bring the teeth 24, 25 into engagement is prevented by engagement of a shoulder 211 with the thrust bearing 28. Additional flat faces may be provided on the pin so as to allow the teeth 24, 25 to partly engage to varying degrees.
GB5380870A 1969-11-15 1970-11-12 Portable drilling machine Expired GB1327436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691957505 DE1957505A1 (en) 1969-11-15 1969-11-15 Portable impact drill

Publications (1)

Publication Number Publication Date
GB1327436A true GB1327436A (en) 1973-08-22

Family

ID=5751185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5380870A Expired GB1327436A (en) 1969-11-15 1970-11-12 Portable drilling machine

Country Status (5)

Country Link
US (1) US3693728A (en)
JP (1) JPS501110B1 (en)
DE (1) DE1957505A1 (en)
FR (1) FR2069426A5 (en)
GB (1) GB1327436A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105335C3 (en) * 1971-02-05 1978-05-24 Robert Bosch Gmbh, 7000 Stuttgart Portable drill that can be switched to turning or turning
DE2144449A1 (en) * 1971-09-04 1973-03-08 Impex Essen Vertrieb HAMMER DRILLING MACHINE
GB1432369A (en) * 1972-07-13 1976-04-14 Black & Decker Ltd Hammer drill mechanism
DE2715682C3 (en) * 1977-04-07 1982-05-27 Metabowerke KG Closs, Rauch & Schnizler, 7440 Nürtingen Impact drill with notches fixed to the housing
DE2916499A1 (en) * 1979-04-24 1980-11-06 Duss Maschf ELECTRIC HAND DRILLING MACHINE WITH DEVICE FOR ADJUSTMENT FOR ROTATING OR IMPACTING DRILLING
EP0029968A3 (en) * 1979-11-30 1982-01-27 Black & Decker Inc. Tool holder
DE3929575A1 (en) * 1989-09-06 1991-03-07 Vascomed Kathetertech DILATATION CATHETER FOR EXTENDING BLOOD VESSELS WITH MOTOR DRIVE
DE4013512A1 (en) * 1990-04-27 1991-10-31 Black & Decker Inc SWITCHING DEVICE FOR SWITCHING A POWERED TOOL
US5494115A (en) * 1994-10-25 1996-02-27 Hwong; Steven Electric hammer drill
JP2005246831A (en) * 2004-03-05 2005-09-15 Hitachi Koki Co Ltd Vibration drill
EP3808478B1 (en) * 2019-10-14 2022-04-06 Nanjing Chervon Industry Co., Ltd. Impact drill
CN110905401A (en) * 2019-12-25 2020-03-24 北京三一智造科技有限公司 Rotary drilling tool and rotary drilling rig

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912440U (en) * 1965-01-13 1965-03-18 Metabowerke Kg IMPACT DRILL.
US3395765A (en) * 1966-12-19 1968-08-06 Milwaukee Electric Tool Corp Small rotary hammer
US3433082A (en) * 1967-09-20 1969-03-18 Black & Decker Mfg Co Transmission and selector mechanism for alternate hammer and hammerdrill power tool

Also Published As

Publication number Publication date
US3693728A (en) 1972-09-26
JPS501110B1 (en) 1975-01-14
FR2069426A5 (en) 1971-09-03
DE1957505A1 (en) 1971-05-19

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee